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EP0945681B1 - Gas hob - Google Patents

Gas hob Download PDF

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Publication number
EP0945681B1
EP0945681B1 EP99101444A EP99101444A EP0945681B1 EP 0945681 B1 EP0945681 B1 EP 0945681B1 EP 99101444 A EP99101444 A EP 99101444A EP 99101444 A EP99101444 A EP 99101444A EP 0945681 B1 EP0945681 B1 EP 0945681B1
Authority
EP
European Patent Office
Prior art keywords
burner
shaped body
gas
cooking hob
parts
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.)
Expired - Lifetime
Application number
EP99101444A
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German (de)
French (fr)
Other versions
EP0945681A1 (en
Inventor
Martin Taplan
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.)
Schott AG
Carl Zeiss AG
Original Assignee
Carl Zeiss AG
Schott Glaswerke AG
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 Carl Zeiss AG, Schott Glaswerke AG filed Critical Carl Zeiss AG
Publication of EP0945681A1 publication Critical patent/EP0945681A1/en
Application granted granted Critical
Publication of EP0945681B1 publication Critical patent/EP0945681B1/en
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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
    • F24C3/00—Stoves or ranges for gaseous fuels
    • F24C3/08—Arrangement or mounting of burners
    • F24C3/085—Arrangement or mounting of burners on ranges
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
    • F23D14/04—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner
    • F23D14/06—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner with radial outlets at the burner head

Definitions

  • the invention relates to a hob with at least one gas burner and one of these gas burners as a flat, plate-shaped, one-piece Shaped hob surrounding glass ceramic or another temperature resistant material with low thermal expansion coefficient, such as special glasses or ceramics, the cooking surface being the Cooking hob covers being components or functional parts of the components each gas burner in the area of one assigned to the respective burner Opening in the molded body below, above or in the main plane of the Shaped body are arranged, and wherein the gas burner from the shaped body is carried, wherein the shaped body is formed in the area of the burner is that it directly burns the burner and / or components of the burner carries or holds and / or forms parts and / or components of the burner itself.
  • a burner arrangement is known from European patent specification EP 0 536 619 B1, known for hobs, in which at least one Gas burner mounted in a support frame and the surrounding area the gas burner or the gas burner by means of a shaped body made of brittle Material, such as glass, glass ceramic or ceramic, is covered, whereby each gas burner through a passage in the brittle Material .existing molded body extends over the top thereof, wherein the gas burner (s) from the brittle material Shaped body is or are and between the shaped body and each Gas burner is a permanently flexible connection and sealing device is attached, which for fastening and at the same time liquid sealing the gas burner in the passage of the molded body is a solid and liquid-tight on the edge area of the passage in the molded body and on at least a connecting surface formed by the gas burner and has sealing element, between the gas burner or the gas burners and the support frame securing and holding devices are attached, if the supporting body is removed Admission of limited mobility with regard to restraint and anti-rot
  • this type is the one that covers the surrounding surface of the gas burner Provide plate with a much larger opening than would actually be required for the respective gas burner.
  • the one formed by it relatively wide annular gap between the gas burner and the breakthrough edge must be sealed effectively. This sealing is partially successful insufficient and overcooked food can enter the joint between the Penetrate the plate and the gas burner. Cleaning these facilities therefore often makes an at least partial disassembly of the arrangement necessary.
  • the PCT application WO 97/00407 describes a stove made of glass ceramic for gas stoves, which has at least one opening for receiving the gas burner and several arches of the same height, which are distributed around this opening and serve as a carrier for a cooking appliance which can be operated with the aid of the Brenner should be heated, the bulges are an essential part of the hob itself.
  • This WO 97/00407 is concerned with the changeover of gas stoves with burners with an open flame to a glass ceramic plate, the support grid, the so-called pan support, which is necessary in the conventional gas stoves with open gas burners. Is solved.
  • a plate made of glass ceramic is presented as a component of a cooking appliance, with at least one area of the one-piece plate deviating from the main plane of the plate, areas of the one-piece plate deviating from the main plane of the plate with the formation of circular truncated cones, spherical segments and / or circular cones, differ from prisms, tetrahedra, pyramids and / or their stumps (claim 5).
  • the main level of the one-piece plate can have openings and assembly openings for the passage of the gas burners.
  • the object of this DE 43 33 334 C2 is to propose a new, functional embodiment of a plate made of glass ceramic as a hob, which can be easily assembled without major changes to existing designs and whose need for additional frame and fastening parts is minimal.
  • the design of a specific burner arrangement for hobs with gas burners is not to be found in DE 43 33 334 C2.
  • the object of the present invention is therefore in a burner arrangement a fully effective seal between the To provide gas burner and the molded body made of glass ceramic and rupture due to tension, the assembly of these Burner arrangement simple and with little expenditure of time, material and Costs should be feasible.
  • Another object of the invention is the ease of cleaning and the overall aesthetics compared to the known cooking systems to improve significantly.
  • the glass ceramic cooktop or a surface made of another temperature-resistant material with a low coefficient of thermal expansion such as special glasses, in particular quartz glass, ceramics or sintered ceramics
  • special glasses in particular quartz glass, ceramics or sintered ceramics
  • quartz glass, ceramics or sintered ceramics can become part of the burner itself in the burner area and, as a result, the burning point is inevitably integrated into the cooking appliance.
  • the specific advantages of a glass ceramic can be exploited in particular, since no thermal stresses are induced in the hot burner area compared to the cold cooking area, which makes such an embodiment possible in the first place.
  • this embodiment according to the invention can be represented in particular with glass ceramic.
  • Traditional cooking appliances with a stainless steel or steel enamel cover do not allow such an embodiment.
  • the shaping of the glass ceramic can take place in a known manner by vacuum forming, hot molding, shaping rolls or sintering.
  • the molded body gives way to Area of the burner from its main level forming an open one Circular truncated cone, spherical segment, of an open prism, tetrahedron, or a pyramid, on the opening edge of which the burner rests, and thereby worn or held.
  • the shape of the molded body can be upwards and / or downwards deviate from its main level below.
  • the shaped body defines a wall with the formation of an annular bulge on which the burner then lies directly and the edge of which supports the burner. This creates a space within the bulge with a floor, which forms components or parts of the burner, in particular together with the cover of the burner, the mixing chamber or parts of the mixing chamber of the burner.
  • the shaped body, with the formation of an annular bulge as the wall can also define a space with a plane parallel to the main plane of the shaped body as the floor, which likewise represents the mixing chamber for swirling gas and air together with the cover of the burner.
  • the one formed in the area of the burner Shaped body in particular made of glass ceramic in its upper, the burner cover facing edge area openings or slots, or both have as burner channels.
  • the openings required for the gas passage can advantageously also be in the form of bores and slots in a separate intermediate ring which is arranged between the burner cover and the molded body.
  • the intermediate ring consists in particular of metal or ceramic.
  • the burner cap can be designed according to the invention so that it forms the pot support at the same time. According to the present invention, it is also particularly advantageous to form the burner cover in particular from glass ceramic, which results in an increase in ease of cleaning and also further improves the overall aesthetic impression.
  • open gas atmospheres can be used as gas burners Burners, but also gas radiation burners, especially with burner mats based on ceramic, non-oxide fiber materials and / or mixed forms of burners can be integrated into the glass ceramic molded body.
  • thermocouple monitoring and the spark plug for the automatic ignition in the round symmetrical structure of the burner cannot be achieved for functional reasons
  • a separate configuration, in particular of the glass ceramic is also provided for accommodating these additional elements according to the invention, i.e. spark plugs and thermocouples are also in integrated the molded body molded in the area of the burner.
  • spark plugs and thermocouples are also in integrated the molded body molded in the area of the burner. It is particularly advantageous according to the present invention if the shaped body deviates from its main plane in the wider surrounding area of the burner with the formation of closed circular truncated cones, spherical segments and / or circular cones, of closed prisms, tetrahedra, pyramids and / or their trunks, and thus forms pan supports , which are also formed from the plate itself.
  • FIG. 1 shows the cross section through an atmospheric gas burner 1, in which the glass ceramic 2 is part of the burner 1.
  • the glass ceramic 2 is deformed in a round symmetry with an outer collar 3, similar to a volcano, and runs first convex and then concave inwards.
  • a hole 4 is provided in the middle.
  • the inwardly running, here curved shape serves to form a mixing chamber 5 and to swirl the gas-air mixture.
  • the mixing is further supported by a conical widening of the chamber 5 from the inside to the outside, a so-called venturi effect being able to develop.
  • a sleeve 6 is inserted into the middle bore 4, which is supported on the upper collar 7 on the glass ceramic 2.
  • the sleeve 6 then has a thread 9 on the other side with which the nozzle assembly 8 can be screwed.
  • the sleeve 6 is provided with a thread in the upper region and can then simply be screwed on from above. In this case, the sleeve 6 would already be firmly connected to the nozzle assembly 8. In both cases, however, there is a connection between the nozzle assembly 8 and the mixing chamber 5.
  • the outer collar 3 of the burner 1 is formed with slot-shaped depressions 10. These can be molded in directly during the shaping process or can also be introduced subsequently by drilling or grinding. The gas flows out through these openings 10 in a controlled manner and burns.
  • the cover 11 is a simple molded part without further gas slots or bores 10.
  • the gas bores or slots 10 can of course also be integrated in the cover 11 itself or accommodated in a separate intermediate ring (not shown here).
  • the burner edge 3 can then be level and without slots 10.
  • the burner cover 11 can be formed from enamelled cast aluminum, but advantageously according to the invention from the cooking surface material of glass ceramic. In this preferred embodiment, the overall aesthetics and in particular the ease of cleaning of the device is further supported.
  • FIG. 2 shows a burner design that is comparable to FIG. 1 is.
  • the shape of the Glass ceramic cooktop 2 easier. Because here is just a sublime one Bead 3 required.
  • the glass ceramic 2 runs inwards towards the bore 4 at a level 12 between the cooking surface level 2a and the level 3a of the collar 3 continue flat.
  • the sleeve 6 in the middle is shown in the Example screwed from above.
  • the venturi effect is in this case supports the corresponding shape of the burner cap 11.
  • the gas wells 10 are also accommodated in the burner cover 11.
  • the material selection for the burner cap 11 can be varied.
  • glass ceramics are used here.
  • FIG. 3 shows a further embodiment in which essentially the burner edge 13 is formed from the glass ceramic 2.
  • the inner burner part 14 is based on a support collar 15 on the end face 16 of the formed Burner edge 13, or also overlaps it (not shown).
  • On the The bottom of the burner inner part 14 can be, for example, by a spring element 17 are simply jammed.
  • This spring element 17 can from below are slipped onto the cylindrical torch sleeve 18 and thus produced a sufficient connection between the burner wall via a frictional connection 13a and the burner sleeve 18.
  • Between the glass ceramic 2 and the The burner wall 13a is the different expansion behavior between the glass ceramic 2 and the metallic burner wall 13a Gap provided as compensation space (not shown here). In this In this case, the burner channels 10 are again integrated in the burner cover 11.
  • Figure 4 is comparable to the embodiment of Figure 3, but is in in this case, the end face 16 of the burner wall 13a directly with burner slots 10 executed.
  • the collar 19 of the burner sleeve 18 overlaps in this case the end face 16 of the burner edge 13 then only in partial areas.
  • FIG. 5 shows the integration of a thermocouple for temperature monitoring and a spark plug for automatic ignition.
  • a thermocouple is not possible for functional reasons Monitoring the burner and a spark plug for automatic ignition can be integrated in the round symmetrical structure of the burner 1
  • a separate configuration of the glass ceramic 2 for the These additional elements 20 can be accommodated.
  • the glass ceramic 2 as shown partially further shaped and with a Breakthrough 21 for receiving the thermocouple or the spark plug 20 provided.
  • the elements 20 could for example be on the top an integrally formed support collar 22 and on the underside be fastened with a tension spring 23.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)

Abstract

The cooking device includes a glass-ceramic molded body (2) providing a cooking surface. The glass-ceramic molded body (2) includes a closed or an open upwardly projecting portion (3,13) that, together with a glass-ceramic cover (11) that fits over it, forms a gas/air mixing chamber (5) of a gas burner. The glass-ceramic cover (11) together with either a concave upper surface of the molded body (2) surrounded by the closed upwardly projecting portion or together with a burner section inserted in the open upwardly projecting portion, bounds the mixing chamber (5). Either the cover (11) or an upper edge region of the closed upwardly projecting portion (3) or an upper edge of a burner section (14) mounted in the open upwardly projecting portion (13) is provided with a plurality of circumferentially distributed slots or openings (10) providing channels or ducts for passage of the gas/air mixture from the mixing chamber (5) to a region outside of the mixing chamber (5), in order to burn the gas/air mixture outside the mixing chamber (5).

Description

Die Erfindung bezieht sich auf eine Kochmulde mit mindestens einem Gasbrenner und einer diesen Gasbrenner als flächiger, plättenförmiger, einstückiger Formkörper umgebenden Kochfläche aus Glaskeramik oder einem anderen temperaturbeständigen Werkstoff mit niedrigem Wärmeausdehnungskoeffizienten, wie speziellen Gläsern oder Keramiken, wobei die Kochfläche die Kochmulde abdeckt, wobei Komponenten oder funktionelle Teile der Komponenten jedes Gasbrenners im Bereich einer, dem jeweiligen Brenner zugeordneten Öffnung im Formkörper unterhalb, oberhalb oder in der Hauptebene des Formkörpers angeordnet sind, und wobei der Gasbrenner von dem Formkörper getragen ist, wobei der Formkörper im Bereich der Brenner derart ausgebildet ist, dass er den Brenner und/oder Komponenten des Brenners direkt trägt oder hält und/oder Teile und/oder Komponenten des Brenners selbst bildet.The invention relates to a hob with at least one gas burner and one of these gas burners as a flat, plate-shaped, one-piece Shaped hob surrounding glass ceramic or another temperature resistant material with low thermal expansion coefficient, such as special glasses or ceramics, the cooking surface being the Cooking hob covers being components or functional parts of the components each gas burner in the area of one assigned to the respective burner Opening in the molded body below, above or in the main plane of the Shaped body are arranged, and wherein the gas burner from the shaped body is carried, wherein the shaped body is formed in the area of the burner is that it directly burns the burner and / or components of the burner carries or holds and / or forms parts and / or components of the burner itself.

Seit einigen Jahren sind Gas- oder Elektro-/ Gas-Herde, sogenannte Mixt-Herde mit Glaskeramikkochflächen am Markt eingeführt. Diese Kochgeräte werden mit atmosphärischen Gasbrennern betrieben, wie sie weitestgehend baugleich auch in den normalen Edelstahl- oder Stahlemailmulden seit vielen Jahren Verwendung finden.For some years now there have been gas or electric / gas stoves, so-called mixed stoves with glass ceramic cooktops launched on the market. These cooking devices are operated with atmospheric gas burners, as far as possible identical in construction to the normal stainless steel or steel enamel troughs for many Years of use.

Gasherde mit Glaskeramikkochflächen setzen sich insbesondere wegen der Ästhetik und Reinigungfreundlichkeit der Glaskeramikkochflächen, die z. B. auch als Arbeitsplatten verwendet werden können, durch. Gerade wegen dieser Kaufmotive wird die Einbindung eines metallischen Gasbrenners in der heute bekannten Bauart als nachteilig empfunden. Das Gesamterscheinungsbild des Kochgerätes und insbesondere auch die Reinigungsfreundlichkeit in dem Verbindungsbereich von Glaskeramikkochfläche und atmosphärischem Gasbrenner ist schlecht. Für die Einbindung der atmosphärischen Gasbrenner ist des weiteren oft eine sehr aufwendige Verbindungstechnik erforderlich, damit der Brenner mechanisch einwandfrei und flüssigkeitdicht mit der Glaskeramikkochfläche verbunden ist. Die bekannten Montagesysteme sind zeitaufwendig und teuer.Gas stoves with glass ceramic cooktops settle in particular because of the Aesthetics and ease of cleaning of the glass ceramic cooktop, the z. B. can also be used as worktops. Precisely because of this The purchase motives are the integration of a metallic gas burner in the design known today is perceived as disadvantageous. The overall appearance of the cooking appliance and in particular the ease of cleaning in the connection area between the glass ceramic cooktop and the atmospheric one Gas burner is bad. For the integration of atmospheric gas burners a very complex connection technology is often required, so that the burner is mechanically perfect and liquid-tight with the glass ceramic hob connected is. The known mounting systems are time consuming and expensive.

So ist aus der europäischen Patentschrift EP 0 536 619 B1 eine Brenneranordnung, beispielsweise für Kochmulden bekannt, bei der mindestens ein Gasbrenner in einem Trägerrahmen angebracht und die Umgebungsfläche des Gasbrenners bzw. der Gasbrenner mittels eines Formkörpers aus sprödbrüchigem Material, wie Glas, Glaskeramik oder Keramik, abgedeckt ist, wobei sich jeder Gasbrenner durch einen Durchlaß in dem aus sprödbrüchigem Material .bestehenden Formkörper bis über dessen Oberseite erstreckt, wobei der bzw. die Gasbrenner von dem aus sprödbrüchigem Material bestehenden Formkörper getragen ist bzw. sind und zwischen dem Formkörper und jedem Gasbrenner eine dauerelastisch nachgiebige Verbindungs- und Dichtungseinrichtung angebracht ist, die zur Befestigung und zugleich Flüssigkeitsabdichtung des Gasbrenners im Durchlaß des Formkörpers ein fest und flüssigkeitsdicht auf den Randbereich des Durchlasses im Formkörper und auf mindestens eine vom Gasbrenner gebildete Verbindungsfläche greifendes Verbindungs- und Dichtungselement aufweist, wobei zwischen dem Gasbrenner bzw. den Gasbrennern und dem Trägerrahmen Sicherungs- und Halteeinrichtungen angebracht sind, die bei Wegfall des tragenden Formkörpers unter Zulassung begrenzter Beweglichkeit bezüglich Zurückhalte- und Verdrehsicherung für jeden der Gasbrenner wirksam sind.For example, a burner arrangement is known from European patent specification EP 0 536 619 B1, known for hobs, in which at least one Gas burner mounted in a support frame and the surrounding area the gas burner or the gas burner by means of a shaped body made of brittle Material, such as glass, glass ceramic or ceramic, is covered, whereby each gas burner through a passage in the brittle Material .existing molded body extends over the top thereof, wherein the gas burner (s) from the brittle material Shaped body is or are and between the shaped body and each Gas burner is a permanently flexible connection and sealing device is attached, which for fastening and at the same time liquid sealing the gas burner in the passage of the molded body is a solid and liquid-tight on the edge area of the passage in the molded body and on at least a connecting surface formed by the gas burner and has sealing element, between the gas burner or the gas burners and the support frame securing and holding devices are attached, if the supporting body is removed Admission of limited mobility with regard to restraint and anti-rotation are effective for each of the gas burners.

Bei auf dem Markt bekannten Gasherden bzw. Kochmulden mit Brenneranordnungen dieser Art ist die die Umgebungsfläche der Gasbrenner abdeckende Platte dabei mit einer wesentlich größeren Durchbrechung versehen, als für den jeweiligen Gasbrenner eigentlich erforderlich wäre. Der dadurch gebildete relativ breite Ringspalt zwischen dem Gasbrenner und dem Durchbrechungsrand muß wirksam abgedichtet werden. Diese Abdichtung gelingt teilweise nur unzureichend und so kann Übergekochtes in die Fuge zwischen der Platte und dem Gasbrenner eindringen. Das Reinigen dieser Einrichtungen mächt daher oftmals eine zumindest teilweise Demontage der Anordnung notwendig.In gas stoves or hobs with burner arrangements known on the market this type is the one that covers the surrounding surface of the gas burner Provide plate with a much larger opening than would actually be required for the respective gas burner. The one formed by it relatively wide annular gap between the gas burner and the breakthrough edge must be sealed effectively. This sealing is partially successful insufficient and overcooked food can enter the joint between the Penetrate the plate and the gas burner. Cleaning these facilities therefore often makes an at least partial disassembly of the arrangement necessary.

Weiter beschreibt die PCT-Anmeldung WO 97/00407 eine Herdplatte aus Glaskeramik für Gasherde, die mindestens eine Öffnung für die Aufnahme des Gasbrenners und mehrere Wölbungen gleicher Höhe aufweist, die um diese Öffnung verteilt und als Träger für ein Gargerät dienen, das mit Hilfe des Brenners erhitzt werden soll, wobei die Wölbungen wesentlicher Teil der Herdplatte selbst sind.
Bei dieser WO 97/00407 geht es darum im Rahmen der Umstellung von Gasherden mit Brennern mit einer offenen Flamme auf eine Glaskeramikplatte das Traggitter, den sogenannten Topfträger wegfallen zu lassen, der bei den konventionellen Gasherden mit offenen Gasbrennern notwendig ist. Gelöst wird . diese Aufgabe nach der WO-Anmeldung, indem verteilt um eine Öffnung für den Brenner in der Glaskeramikplatte mehrere gleichhohe, und über den Brenner hinausragende Wölbungen als Träger für das Gargerät, also den Topf einstückig in der Glaskeramikplatte ausgeformt sind. Desweiteren wird, ebenfalls integriert in die Glaskeramikplatte, eine Zone beschrieben, welche im Verhältnis zur Brennerdurchführung und zum Rand der Herdplatte abgesenkt ist. Diese Vertiefung soll während des Garprozesses überlaufende Flüssigkeiten auffangen.Furthermore, the PCT application WO 97/00407 describes a stove made of glass ceramic for gas stoves, which has at least one opening for receiving the gas burner and several arches of the same height, which are distributed around this opening and serve as a carrier for a cooking appliance which can be operated with the aid of the Brenner should be heated, the bulges are an essential part of the hob itself.
This WO 97/00407 is concerned with the changeover of gas stoves with burners with an open flame to a glass ceramic plate, the support grid, the so-called pan support, which is necessary in the conventional gas stoves with open gas burners. Is solved. this task according to the WO application, in that several bulges of the same height distributed around an opening for the burner in the glass ceramic plate and protruding beyond the burner are formed in one piece in the glass ceramic plate as supports for the cooking appliance, that is to say the pot. Furthermore, a zone is described, also integrated in the glass ceramic plate, which is lowered in relation to the burner bushing and to the edge of the hob. This recess is intended to catch overflowing liquids during the cooking process.

In der deutschen Patentschrift DE 43 33 334 C2 wird eine Platte aus Glaskeramik als Bestandteil eines Kochgerätes vorgestellt, wobei mindestens ein Bereich der einstückigen Platte von der Hauptebene der Platte abweicht, wobei Bereiche der einstückigen Platte von der Hauptebene der Platte unter Ausbildung von Kreiskegelstümpfen, Kugelsegmenten und / oder Kreiskegeln, von Prismen, Tetraedern, Pyramiden und / oder deren Stümpfen abweichen (Anspruch 5). Die Hauptebene der einstückigen Platte kann dabei Durchbrechungen und Montageöffnungen zum Durchführen der Gasbrenner aufweisen. Aufgabe dieser DE 43 33 334 C2 ist es, eine neue, funktionelle Ausführungsform einer Platte aus Glaskeramik als Kochfeld vorzuschlagen, die ohne große Änderung bestehender Konstruktionen einfach montiert werden kann und deren Bedarf an zusätzlichen Rahmen- und Befestigungsteilen minimal ist.
Die Gestaltung einer bestimmter Brenneranordnung für Kochmulden mit Gasbrennern ist der DE 43 33 334 C2 nicht zu entnehmen.In the German patent DE 43 33 334 C2, a plate made of glass ceramic is presented as a component of a cooking appliance, with at least one area of the one-piece plate deviating from the main plane of the plate, areas of the one-piece plate deviating from the main plane of the plate with the formation of circular truncated cones, spherical segments and / or circular cones, differ from prisms, tetrahedra, pyramids and / or their stumps (claim 5). The main level of the one-piece plate can have openings and assembly openings for the passage of the gas burners. The object of this DE 43 33 334 C2 is to propose a new, functional embodiment of a plate made of glass ceramic as a hob, which can be easily assembled without major changes to existing designs and whose need for additional frame and fastening parts is minimal.
The design of a specific burner arrangement for hobs with gas burners is not to be found in DE 43 33 334 C2.

Die US Patentschrift US-A-3592180, als nächstliegender Stand der Technik zeigt eine einstückig mit der Platte verbundene und eingesenkte Brennermulde aus Keramik, im Gegensatz zur vorliegenden Erfindung, die sich auf eine verformte Glaskeramikmulde mit einer erhabenen Kontur zur Aufnahme der Brenner bezieht.US-A-3592180, as the closest prior art shows a burner trough connected in one piece to the plate and countersunk made of ceramic, in contrast to the present invention, which relates to a deformed glass ceramic trough with a raised contour to accommodate the Brenner relates.

Aufgabe der vorliegenden Erfindung ist es daher, bei einer Brenneranordnung eine für den praktischen Gebrauch voll wirksame Abdichtung zwischen dem Gasbrenner und dem aus Glaskeramik bestehenden Formkörper vorzusehen und Bruch durch Verspannungen auszuschließen, wobei die Montage dieser Brenneranordnung einfach und mit geringem Aufwand an Zeit, Material und Kosten durchführbar sein soll. Weiter ist es Aufgabe der Erfindung die Reinigungsfreundlichkeit und die Gesamtästhetik gegenüber den bekannten Kochsystemen deutlich zu verbessern.The object of the present invention is therefore in a burner arrangement a fully effective seal between the To provide gas burner and the molded body made of glass ceramic and rupture due to tension, the assembly of these Burner arrangement simple and with little expenditure of time, material and Costs should be feasible. Another object of the invention is the ease of cleaning and the overall aesthetics compared to the known cooking systems to improve significantly.

Zur Lösung dieser Aufgabe wird bei einer Kochmulde gemäß dem Oberbegriff des Patentanspruchs 1 der vorliegenden Erfindung vorgeschlagen, daß der Formkörper aus Glaskeramik eine Kochmulde mit einer umlaufender Aufwölbung zur Aufnahme des Brenners bildet.To solve this problem is in a hob according to the preamble of claim 1 of the present invention proposed that the Shaped body made of glass ceramic, a hob with an all-round bulge to accommodate the burner.

Das heißt, insbesondere die Glaskeramikkochfläche oder eine Fläche aus einem anderen temperaturbeständigen Werkstoff mit niedrigem Wärmeausdehnungskoeffizienten, wie speziellen Gläsern, insbesondere Quarzglas, Keramiken oder Sinterkeramiken kann im Brennerbereich Teil des Brenners selbst werden und dadurch erfolgt zwangsläufig eine Integration der Brennstelle in das Kochgerät. Hierdurch ist ein sanfter Übergang von Kochfläche und Brennstelle gewährleistet, der einfach zu reinigen ist, der ästhetisch ansprechend ist, die Montage des Kochgerätes deutlich vereinfacht und damit auch zu einer Kostenreduzierung führt.
Mit dieser erfindungsgemäßen Ausführungsform lassen sich insbesondere die spezifischen Vorteile einer Glaskeramik ausnutzen, da in dem heißen Brennerbereich gegenüber dem kalten Kochflächenbereich keine thermischen Spannungen induziert werden, wodurch eine solche Ausführungsform überhaupt erst möglich ist. Wegen der hohen Temperaturunterschiede zwischen der Brennstelle und dem kalten Kochflächenbereich ist diese erfindungsgemäße Ausführungsform insbesondere mit Glaskeramik darstellbar. Traditionelle Kochgeräte mit Edelstahl- oder Stahlemail-Abdeckung lassen eine solche Ausführungsform nicht zu.
Die Formgebung der Glaskeramik kann dabei in bekannter Weise durch Vakuumverformung, Heißformpressen, Formwalzen oder Sintern erfolgen.This means that in particular the glass ceramic cooktop or a surface made of another temperature-resistant material with a low coefficient of thermal expansion, such as special glasses, in particular quartz glass, ceramics or sintered ceramics, can become part of the burner itself in the burner area and, as a result, the burning point is inevitably integrated into the cooking appliance. This ensures a smooth transition from the cooking surface to the fireplace, which is easy to clean, which is aesthetically pleasing, which significantly simplifies the assembly of the cooking appliance and thus also leads to a reduction in costs.
With this embodiment according to the invention, the specific advantages of a glass ceramic can be exploited in particular, since no thermal stresses are induced in the hot burner area compared to the cold cooking area, which makes such an embodiment possible in the first place. Because of the high temperature differences between the firing point and the cold cooking surface area, this embodiment according to the invention can be represented in particular with glass ceramic. Traditional cooking appliances with a stainless steel or steel enamel cover do not allow such an embodiment.
The shaping of the glass ceramic can take place in a known manner by vacuum forming, hot molding, shaping rolls or sintering.

In einer spezielleren Ausführungsform der Erfindung weicht der Formkörper im Bereich des Brenners aus seiner Hauptebene unter Ausbildung eines offenen Kreiskegelstumpfes, Kugelsegmentes, eines offenen Prismas, Tetraeders, oder einer Pyramide ab, auf deren Öffnungsrand der Brenner aufliegt und dadurch getragen bzw. gehalten ist.In a more specific embodiment of the invention, the molded body gives way to Area of the burner from its main level forming an open one Circular truncated cone, spherical segment, of an open prism, tetrahedron, or a pyramid, on the opening edge of which the burner rests, and thereby worn or held.

Die Ausformungen des Formkörpers können dabei nach oben und / oder nach unten aus seiner Hauptebene abweichen.The shape of the molded body can be upwards and / or downwards deviate from its main level below.

In einer weiteren sehr bevorzugten Ausführungsform definiert der Formkörper unter Ausbildung einer ringförmigen..Aufwölbung eine Wandung auf der dann der Brenner direkt aufliegt und deren Rand den Brenner trägt. Innerhalb der Aufwölbung entsteht dadurch ein Raum mit einem Boden, der Komponenten oder Teile des Brenners, insbesondere zusammen mit dem Deckel des Brenners die Mischkammer oder Teile der Mischkammer des Brenners bildet.
Dabei kann der Formkörper unter Ausbildung einer ringförmigen Aufwölbung als Wandung auch einen Raum mit einer zur Hauptebene des Formkörpers weiteren parallelen Ebene als Boden definieren, der ebenfalls zusammen mit dem Deckel des Brenners die Mischkammer zur Verwirbelung von Gas und Luft darstellt.In a further very preferred embodiment, the shaped body defines a wall with the formation of an annular bulge on which the burner then lies directly and the edge of which supports the burner. This creates a space within the bulge with a floor, which forms components or parts of the burner, in particular together with the cover of the burner, the mixing chamber or parts of the mixing chamber of the burner.
In this case, the shaped body, with the formation of an annular bulge as the wall, can also define a space with a plane parallel to the main plane of the shaped body as the floor, which likewise represents the mixing chamber for swirling gas and air together with the cover of the burner.

Nach der vorliegenden Erfindung kann der im Bereich der Brenner ausgeformte Formkörper, inbesondere aus Glaskeramik in seinem oberen, dem Brennerdeckel zugewandten Randbereich Öffnungen oder Schlitze, oder auch beides als Brennerkanäle aufweisen. According to the present invention, the one formed in the area of the burner Shaped body, in particular made of glass ceramic in its upper, the burner cover facing edge area openings or slots, or both have as burner channels.

Die für den Gasdurchtritt erforderlichen Öffnungen können vorteilhafterweise aber auch in Form von Bohrungen und Schlitzen in einem separaten Zwischenring, der zwischen dem Brennerdeckel und Formkörper angeordnet ist, ausgebildet sein. Der Zwischenring besteht dabei insbesondere aus Metall oder Keramik.
Der Brennerdeckel kann nach der Erfindung so gestaltet sein, daß er gleichzeitig den Topfträger ausbildet.
Besonders vorteilhaft nach der vorliegenden Erfindung ist es den Brennerdeckel dabei ebenfalls insbesondere aus Glaskeramik auszubilden, was eine Steigerung der Reinigungsfreundlichkeit zur Folge hat und auch den ästhetischen Gesamteindruck weiter verbessert.The openings required for the gas passage can advantageously also be in the form of bores and slots in a separate intermediate ring which is arranged between the burner cover and the molded body. The intermediate ring consists in particular of metal or ceramic.
The burner cap can be designed according to the invention so that it forms the pot support at the same time.
According to the present invention, it is also particularly advantageous to form the burner cover in particular from glass ceramic, which results in an increase in ease of cleaning and also further improves the overall aesthetic impression.

Nach der vorliegenden Erfindung können als Gasbrenner offene atmosphärische Brenner, aber auch Gasstrahlungsbrenner, insbesondere mit Brennermatten auf Basis von keramischen, nichtoxidischen Faserwerkstoffen und / oder Mischformen von Brennern in den Glaskeramikformkörper integriert werden.According to the present invention, open gas atmospheres can be used as gas burners Burners, but also gas radiation burners, especially with burner mats based on ceramic, non-oxide fiber materials and / or mixed forms of burners can be integrated into the glass ceramic molded body.

Soweit aus funktionstechnischen Gründen eine Integration der Thermoelementüberwachung und der Zündkerze für die automatische Zündung im rundsymmetrischen Aufbau des Brenners nicht erreicht werden kann, ist auch eine separate Ausgestaltung inbesondere der Glaskeramik für die Aufnahme dieser Zusatzelemente nach der Erfindung vorgesehen, d. h. Zündkerzen und Thermoelemente sind ebenfalls in den im Bereich der Brenner ausgeformten Formkörper integriert.
Besonders vorteilhaft nach der vorliegenden Erfindung ist es, wenn der Formkörper im weiteren Umgebungsbereich der Brenner aus seiner Hauptebene unter Ausbildung von geschlossenen Kreiskegelstümpfen, Kugelsegmenten und / oder Kreiskegeln, von geschlossenen Prismen, Tetraedern, Pyramiden und / oder deren Stümpfe abweicht, und so Topfträger ausbildet, die ebenfalls aus der Platte selbst gebildet werden.Insofar as an integration of the thermocouple monitoring and the spark plug for the automatic ignition in the round symmetrical structure of the burner cannot be achieved for functional reasons, a separate configuration, in particular of the glass ceramic, is also provided for accommodating these additional elements according to the invention, i.e. spark plugs and thermocouples are also in integrated the molded body molded in the area of the burner.
It is particularly advantageous according to the present invention if the shaped body deviates from its main plane in the wider surrounding area of the burner with the formation of closed circular truncated cones, spherical segments and / or circular cones, of closed prisms, tetrahedra, pyramids and / or their trunks, and thus forms pan supports , which are also formed from the plate itself.

Ausführungsbeispiele der Erfindung werden im folgenden anhand der Zeichnungen 1 - 5 näher erläutert.Embodiments of the invention are described below with reference to the drawings 1 - 5 explained in more detail.

Es zeigen:

  • Figur 1 einen schematischen Querschnitt eines gemäß der Erfindung ausgebildeten Gasbrenners
  • Figur 2 einen schematischen Querschnitt einer abgewandelten Ausführung eines Gasbrenners nach der Erfindung
  • Figur 3 wiederum einen schematische Querschnitt einer weiteren Ausführung eines gemäß der Erfindung ausgebildeten Brenners
  • Figur 4 einen schematischen Querschnitt einer vierten Ausführungsform eines gemäß der Erfindung ausgebildeten Brenners
  • Figur 5 einen schematischen Querschnitt eines erfindungsgemäßen Brenners mit integrierten Thermoelementen und einer Zündkerze.
    • Show it:
  • 1 shows a schematic cross section of a gas burner designed according to the invention
  • Figure 2 is a schematic cross section of a modified version of a gas burner according to the invention
  • FIG. 3 again shows a schematic cross section of a further embodiment of a burner designed according to the invention
  • Figure 4 is a schematic cross section of a fourth embodiment of a burner designed according to the invention
  • Figure 5 is a schematic cross section of a burner according to the invention with integrated thermocouples and a spark plug.

    • Figur 1 zeigt den Querschnitt durch einen atmosphärischen Gasbrenner 1, bei dem die Glaskeramik 2 Teil des Brenners 1 ist.
    Die Glaskeramik 2 ist im Brennerbereich rundsymmetrisch verformt mit einem Außenkragen 3, ähnlich einem Vulkan und verläuft erst konvex und dann konkav nach innen.
    In der Mitte ist eine Bohrung 4 vorgesehen. Die nach innen verlaufende, hier geschwungene Form dient zur Ausbildung einer Mischkammer 5 und zur Verwirbelung des Gas-Luft-Gemisches. Die Vermischung wird weiter unterstützt durch ein konisches Aufweiten der Kammer 5 von innen nach außen, wobei sich ein sog. Venturi-Effekt ausbilden kann. Gemäß dieser Figur wird in die mittlere Bohrung 4 eine Hülse 6 gesteckt, die sich am oberen Kragen 7 an der Glaskeramik 2 abstützt. In dem hier vorgestellten Fall hat die Hülse 6 dann auf der anderen Seite ein Gewinde 9 mit dem der Düsenstock 8 verschraubt werden kann. Denkbar ist allerdings auch, daß die Hülse 6 im oberen Bereich mit einem Gewinde ausgestattet ist und dann einfach von oben verschraubt werden kann. In diesem Fall wäre die Hülse 6 bereits fest mit dem Düsenstock 8 verbunden. In beiden Fällen aber ist eine Verbindung von Düsenstock 8 mit der Mischkammer 5 gegeben. Der äußere Kragen 3 des Brenners 1 ist mit schlitzförmigen Vertiefungen 10 ausgebildet. Diese können beim Formgebungsprozeß direkt eingeformt werden oder aber auch nachträglich durch Bohren oder Einschleifen eingebracht werden. Durch diese Öffnungen 10 strömt das Gas kontrolliert nach außen und verbrennt. In diesem Fall ist der Deckel 11 ein einfaches Formteil ohne weitere Gasschlitze oder Bohrungen 10. Selbstverständlich können aber die Gasbohrungen oder Schlitze 10 auch im Deckel 11 selber integriert oder in einem - hier nicht dargestellten - separaten Zwischenring untergebracht werden. In diesem Fall kann dann der Brennerrand 3 planeben und ohne Schlitze 10 ausgebildet sein. In beiden Fällen kann der Brennerdeckel 11 aus emailliertem Guß, aus Aluminium, aber nach der Erfindung vorteilhafterweise aus dem Kochflächenmaterial Glaskeramik gebildet sein. In dieser vorzugsweisen Ausführungsform wird die Gesamtästhetik und insbesondere die Reinigungsfreundlichkeit des Gerätes noch weiter unterstützt.    FIG. 1 shows the cross section through an atmospheric gas burner 1, in which the glass ceramic 2 is part of the burner 1.
    In the burner area, the glass ceramic 2 is deformed in a round symmetry with an outer collar 3, similar to a volcano, and runs first convex and then concave inwards.
    A hole 4 is provided in the middle. The inwardly running, here curved shape serves to form a mixing chamber 5 and to swirl the gas-air mixture. The mixing is further supported by a conical widening of the chamber 5 from the inside to the outside, a so-called venturi effect being able to develop. According to this figure, a sleeve 6 is inserted into the middle bore 4, which is supported on the upper collar 7 on the glass ceramic 2. In the case presented here, the sleeve 6 then has a thread 9 on the other side with which the nozzle assembly 8 can be screwed. However, it is also conceivable that the sleeve 6 is provided with a thread in the upper region and can then simply be screwed on from above. In this case, the sleeve 6 would already be firmly connected to the nozzle assembly 8. In both cases, however, there is a connection between the nozzle assembly 8 and the mixing chamber 5. The outer collar 3 of the burner 1 is formed with slot-shaped depressions 10. These can be molded in directly during the shaping process or can also be introduced subsequently by drilling or grinding. The gas flows out through these openings 10 in a controlled manner and burns. In this case, the cover 11 is a simple molded part without further gas slots or bores 10. Of course, the gas bores or slots 10 can of course also be integrated in the cover 11 itself or accommodated in a separate intermediate ring (not shown here). In this case, the burner edge 3 can then be level and without slots 10. In both cases, the burner cover 11 can be formed from enamelled cast aluminum, but advantageously according to the invention from the cooking surface material of glass ceramic. In this preferred embodiment, the overall aesthetics and in particular the ease of cleaning of the device is further supported.

    In Figur 2 ist eine Brennerausführung dargestellt, die vergleichbar der Figur 1 ist. In der dargestellten Ausführungsform ist allerdings die Formgebung der Glaskeramikkochfläche 2 einfacher. Denn hier ist lediglich ein erhabener Wulst 3 erforderlich. Nach innen hin zur Bohrung 4 verläuft die Glaskeramik 2 auf einem Niveau 12 zwischen der Kochflächenebene 2a und der Ebene 3a des Kragens 3 planeben weiter. Die Hülse 6 in der Mitte ist in dem gezeigten Beispiel von oben verschraubt. Auch hier ist eine Befestigungsmöglichkeit wie zu Figur 1 beschrieben möglich. Der Venturi-Effekt wird in diesem Fall durch die entsprechende Ausformung des Brennerdeckels 11 unterstützt. Die Gasbohrungen 10 sind ebenfalls im Brennerdeckel 11 untergebracht. Auch hier ist die Materialauswahl für den Brennerdeckel 11 variierbar. Vorzugsweise sollte aber auch hier wieder Glaskeramik zum Einsatz kommen.FIG. 2 shows a burner design that is comparable to FIG. 1 is. In the embodiment shown, however, the shape of the Glass ceramic cooktop 2 easier. Because here is just a sublime one Bead 3 required. The glass ceramic 2 runs inwards towards the bore 4 at a level 12 between the cooking surface level 2a and the level 3a of the collar 3 continue flat. The sleeve 6 in the middle is shown in the Example screwed from above. Here, too, is an attachment option like described to Figure 1 possible. The venturi effect is in this case supports the corresponding shape of the burner cap 11. The gas wells 10 are also accommodated in the burner cover 11. Here too the material selection for the burner cap 11 can be varied. Preferably should but again glass ceramics are used here.

    Figur 3 zeigt eine weitere Ausführungsform bei der im wesentlichen der Brennerrand 13 aus der Glaskeramik 2 ausgeformt ist. Der innere Brennerteil 14 stützt sich dabei auf einem Auflagekragen 15 auf der Stirnseite 16 des umgeformten Brennerrandes 13 ab, oder übergreift ihn auch (nicht gezeigt). Auf der Unterseite kann das Brennerinnenteil 14 beispielsweise durch ein Federelement 17 einfach verklemmt werden. Dieses Federelement 17 kann von unten auf die zylinderförmige Brennerhülse 18 übergestreift werden und erzeugt so über einen Kraftschluß eine ausreichende Verbindung zwischen der Brennerwand 13a und der Brennerhülse 18. Zwischen der Glaskeramik 2 und der Brennerwand 13a ist dabei ein das unterschiedliche Dehnungsverhalten zwischen der Glaskeramik 2 und der metallischen Brennerwand 13a berücksichtigender Spalt als Kompensationsraum vorgesehen (hier nicht gezeigt). In diesem Fall sind die Brennerkanäle 10 wieder im Brennerdeckel 11 integriert.Figure 3 shows a further embodiment in which essentially the burner edge 13 is formed from the glass ceramic 2. The inner burner part 14 is based on a support collar 15 on the end face 16 of the formed Burner edge 13, or also overlaps it (not shown). On the The bottom of the burner inner part 14 can be, for example, by a spring element 17 are simply jammed. This spring element 17 can from below are slipped onto the cylindrical torch sleeve 18 and thus produced a sufficient connection between the burner wall via a frictional connection 13a and the burner sleeve 18. Between the glass ceramic 2 and the The burner wall 13a is the different expansion behavior between the glass ceramic 2 and the metallic burner wall 13a Gap provided as compensation space (not shown here). In this In this case, the burner channels 10 are again integrated in the burner cover 11.

    Figur 4 ist vergleichbar mit der Ausführungsform nach Figur 3, allerdings ist in diesem Fall die Stirnseite 16 der Brennerwand 13a direkt mit Brennerschlitzen 10 ausgeführt. Der Kragen 19 der Brennerhülse 18 übergreift in diesem Fall die Stirnseite 16 des Brennerrandes 13 dann nur in Teilbereichen.Figure 4 is comparable to the embodiment of Figure 3, but is in in this case, the end face 16 of the burner wall 13a directly with burner slots 10 executed. The collar 19 of the burner sleeve 18 overlaps in this case the end face 16 of the burner edge 13 then only in partial areas.

    Figur 5 zeigt die Integration eines Thermoelements zur Temperatur-Überwachung und einer Zündkerze für die automatische Zündung. Soweit es aus funktionstechnischen Gründen nicht möglich ist ein Thermoelement für die Überwachung des Brenners und eine Zündkerze für die automatische Zündung im rundsymmetrischnen Aufbau des Brenners 1 zu integrieren, kann nach der Erfindung eine separate Ausgestaltung der Glaskeramik 2 für die Aufnahme dieser Zusatzelemente 20 ermöglicht werden. In diesem Fall wird die Glaskeramik 2, wie gezeigt partiell weiter ausgeformt und mit einem Durchbruch 21 für die Aufnahme des Thermoelementes bzw. der Zündkerze 20 versehen. Die Elemente 20 könnten auf der Oberseite beispielsweise mit einem angeformten Stützkragen 22 ausgebildet sein und auf der Unterseite mit einer Spannfeder 23 befestigt werden.Figure 5 shows the integration of a thermocouple for temperature monitoring and a spark plug for automatic ignition. As far as it is a thermocouple is not possible for functional reasons Monitoring the burner and a spark plug for automatic ignition can be integrated in the round symmetrical structure of the burner 1 According to the invention, a separate configuration of the glass ceramic 2 for the These additional elements 20 can be accommodated. In this case the glass ceramic 2, as shown partially further shaped and with a Breakthrough 21 for receiving the thermocouple or the spark plug 20 provided. The elements 20 could for example be on the top an integrally formed support collar 22 and on the underside be fastened with a tension spring 23.

    Die Bedeutung der Bezugszeichen:The meaning of the reference symbols:

    11
    atmosphärischer Gasbrenneratmospheric gas burner
    22
    Glaskeramik (-Kochfläche)Glass ceramic (cooktop)
    2a2a
    Ebene der GlaskeramikGlass ceramic level
    33
    als Kragen verformte Glaskeramikglass ceramic deformed as a collar
    3a3a
    Ebene des KragensLevel of the collar
    44
    Bohrung in der GlaskeramikHole in the glass ceramic
    55
    Mischkammermixing chamber
    66
    Hülse (metallisch)Sleeve (metallic)
    77
    Kragen der Hülse 6Collar of the sleeve 6
    88th
    Düsenstocknozzle
    99
    Gewindethread
    1010
    Öffnungen, Schlitze als BrennerkanäleOpenings, slots as burner channels
    1111
    Deckel des BrennersBurner cover
    1212
    Niveau zwischen 2a und 3aLevel between 2a and 3a
    1313
    BrennerrandBrenner edge
    13a13a
    Brennerwandburner wall
    1414
    Innerer BrennerteilInner burner part
    1515
    Auflagekragen von 14Support collar from 14
    1616
    Stirnseite von 13Front of 13
    1717
    Federelementspring element
    1818
    zylinderförmige Brennerhülse cylindrical torch sleeve
    1919
    Auflagekragen von 18Support collar from 18
    2020
    Zusatzelemente wie Zündkerzen und ThermoelementeAdditional elements such as spark plugs and thermocouples
    2121
    Durchbruch zur Aufnahme von 20Breakthrough to take 20
    2222
    Stützkragen für 20Support collar for 20
    2323
    Spannfeder für 20Tension spring for 20

    Die Vorteile der vorliegenden Erfindung sind:

    • der Brenner bzw. Teile und/oder Komponenten des Brenners sind integrierter Teil des Glaskeramikformkörpers
    • zwischen dem Brenner und dem Glaskeramikformteil ist keine komplizierte Abdichtung mehr notwendig
    • die Reinigung von Brenner und Kochfläche wird vereinfacht, da Verbindungsfugen und Kanten entfallen
    • die Montage der Komponenten ist sehr einfach und kostengünstig
    • Montagefehler werden reduziert, da durch die Ausgestaltung und Vorprägung der Kochfläche die Positionen der Brennerstellen eindeutig definiert sind
    • Alle Komponenten lassen sich für Service und im Fall eines späteren Recyclings leicht zerlegen
    The advantages of the present invention are:
    • the burner or parts and / or components of the burner are an integrated part of the glass ceramic molded body
    • A complicated seal is no longer necessary between the burner and the glass ceramic molded part
    • the cleaning of the burner and the cooking surface is simplified because there are no joints or edges
    • the assembly of the components is very simple and inexpensive
    • Installation errors are reduced because the positions and burner positions are clearly defined by the design and pre-embossing of the hob
    • All components can be easily dismantled for service and in the event of later recycling

    Claims (11)

    1. Cooking hob having at least one gas burner and a cooking plate which surrounds this gas burner of a flat, plate-shaped, single-part shaped body made from glass-ceramic or another temperature-resistant material with a low coefficient of thermal expansion, such as special glasses or ceramics, the cooking plate covering the cooking hob, components or functional parts of these components of each gas burner being arranged below, above or in the main plane of the shaped body, in the region of an opening, which is assigned to the corresponding burner, in the shaped body, the gas burner being supported by the shaped body and the shaped body, in the region of the burners, being designed in such a manner that it directly supports the burner and/or components of the burner and/or itself forms parts and/or components of the burner, characterized in that the shaped body made from glass-ceramic forms a cooking hob with an encircling convexity for receiving the burner.
    2. Cooking hob according to claim 1, characterized in that the shaped body, so as to form an annular convexity as a wall which supports parts of the burner, inside the convexity defines a space having a base which forms components or parts of the burner, if in particular, together with the cover of the burner, the mixing chamber or parts of the mixing chamber.
    3. Cooking hob according to Claim 1, characterized in that the shaped body, so as to form an annular convexity as a wall which supports parts of the burner, inside the convexity defines a space with a further plane which is parallel to the main plane of the shaped body as its base, which forms components or parts of the burner, in particular, together with the cover of the burner, the mixing chamber or parts of the mixing chamber.
    4. Cooking hob according to at least one of Claims 1 to 3, characterized in that the shaped body, in the region of the burners, deviates from its main plane to form open truncated cones, segments of a sphere and/or open prisms, tetrahedra, pyramids, on the opening edge of which the burner rests and is supported or held.
    5. Cooking hob according to at least one of Claims 1 to 4, characterized in that the shaped body which is shaped out in the region of the burner has openings or slots, as burner passages, in its upper edge region facing the burner cover.
    6. Cooking hob according to at least one of Claims 1 to 4, characterized in that the openings, bores or slots required for the gas to pass through are formed in a separate intermediate ring which is arranged between the burner cover and shaped body.
    7. Cooking hob according to at least one of Claims 1 to 6, characterized in that the burner cover simultaneously forms the pan support.
    8. Cooking hob according to at least one of Claims 1 to 7, characterized in that the burner cover consists of a glass-ceramic or other temperature-resistant material with a low coefficient of thermal expansion, in particular of the material of which the cooking plate itself also consists.
    9. Cooking hob according to at least one of Claims 1 to 8, characterized in that open, atmospheric burners and/or gas radiation burners and/or mixed forms of burners are integrated in the shaped body as gas burners.
    10. Cooking hob according to at least one of Claims 1 to 9, characterized in that the shaped body, in the region of the burners, is specially shaped for integration of at least one spark plug and/or at least one thermocouple.
    11. Cooking hob according to at least one of Claims 1 to 10, characterized in that the shaped body, in the wider region around a burner, deviates from its main plane, in particular so as to form closed truncated cones, segments of a sphere and/or cones, prisms, tetrahedra, pyramids, and/or truncated parts thereof, so as to form pan supports.
    EP99101444A 1998-03-27 1999-01-27 Gas hob Expired - Lifetime EP0945681B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    DE19813691 1998-03-27
    DE19813691A DE19813691C1 (en) 1998-03-27 1998-03-27 Hob for gas cooker

    Publications (2)

    Publication Number Publication Date
    EP0945681A1 EP0945681A1 (en) 1999-09-29
    EP0945681B1 true EP0945681B1 (en) 2003-10-01

    Family

    ID=7862644

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP99101444A Expired - Lifetime EP0945681B1 (en) 1998-03-27 1999-01-27 Gas hob

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    Country Link
    US (1) US6209534B1 (en)
    EP (1) EP0945681B1 (en)
    JP (1) JP4149075B2 (en)
    AT (1) ATE251291T1 (en)
    DE (2) DE19813691C1 (en)

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    CN105934633A (en) * 2014-01-14 2016-09-07 德芬迪意大利有限责任公司 Gas burner for cooking hob
    US10928061B2 (en) 2015-11-26 2021-02-23 Electrolux Appliances Aktiebolag Gas burner and hob comprising a gas burner

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    Also Published As

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    DE19813691C1 (en) 1999-06-10
    US6209534B1 (en) 2001-04-03
    EP0945681A1 (en) 1999-09-29
    DE59907144D1 (en) 2003-11-06
    ATE251291T1 (en) 2003-10-15
    JPH11325468A (en) 1999-11-26
    JP4149075B2 (en) 2008-09-10

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