EP2267371A2 - Gas range - Google Patents
Gas range Download PDFInfo
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- EP2267371A2 EP2267371A2 EP10167280A EP10167280A EP2267371A2 EP 2267371 A2 EP2267371 A2 EP 2267371A2 EP 10167280 A EP10167280 A EP 10167280A EP 10167280 A EP10167280 A EP 10167280A EP 2267371 A2 EP2267371 A2 EP 2267371A2
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- European Patent Office
- Prior art keywords
- connection
- electrode
- ignition electrode
- gas stove
- spring
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- 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.)
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- 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
- F24C3/10—Arrangement or mounting of ignition devices
- F24C3/103—Arrangement or mounting of ignition devices of electric ignition devices
Definitions
- the present invention relates to a gas appliance, in particular a gas stove as a household appliance.
- gas stove in the following includes both stoves with at least one gas hob, as well as separate gas hobs, such as gas hobs.
- the ignition of the gas is usually carried out by an electric ignition by means of ignition electrodes. These represent one of the most important actuators for the ignition and ignition electrode is usually a piezoelectric electrode used.
- a starting electrode usually consists of the actual electrode and an insulating ceramic layer which is applied to the outside of the electrode at high temperatures.
- the ignition electrode is connected via electrical lines to the control unit of the gas stove.
- the ignition electrodes are often connected directly to the respective bays, with the bays are almost all within a burner of the gas stove in the vicinity of the respective gas outlet.
- the burner is usually removed from its operating position and reinstalled after cleaning.
- the ignition electrodes protrude from the stove surface without protection and can then be triggered by heavy objects or during removal and replacement of the burner.
- burners for gas stoves are usually made of brass or similar metal and are consequently both hard and heavy. This may possibly cause damage or even detachment of the insulating ceramic layer. If the ceramic insulating layer dissolves, then in addition to the originally exposed electrode parts, further parts are exposed. As a result, the point at which the sparks are to be generated can shift during the electrical ignition, which leads to a misfiring.
- the present invention offers a gas stove with an improved ignition electrode connection structure.
- a gas stove which has a cover plate with a first ignition electrode opening, a connection base which is located below the cover plate and is provided with at least one receiving part for receiving an ignition electrode and an ignition electrode which has an insulating ceramic jacket and at least one electrode. Connecting part and is connected by means of a connection of receiving part and electrode connecting part with the connecting base comprises.
- Such a gas stove is characterized by a spring device between the receiving part and the electrode connecting part.
- the gas stove according to the invention is characterized by a compression spring as a spring device.
- a compression spring as a spring device.
- the gas stove according to the invention is characterized in that the electrode connection part as connecting and positioning collar and the connecting base are formed as a burner holder, that the receiving part comprises at least a second connecting and positioning groove and that the compression spring between the lower Surface of the connecting and positioning collar and the second connection and positioning groove is arranged.
- This embodiment proves to be easy to carry out with regard to the machining and production as well as the selection of the components.
- the gas stove according to the invention is characterized in that extends from the underside of the connecting and positioning collar of the insulating ceramic sheath from an extension portion of the Surrounding the upper part of the compression spring.
- this extension section is provided in order to avoid a possible displacement of the compression spring at its mounting position, ie to grant the compression spring a stable support.
- the gas stove according to the invention is characterized in that the receiving part additionally comprises at least one, forming on the connection base, first connecting and positioning groove which surrounds the pressure spring above the second connecting and positioning groove and the inner circumference A is greater as the outer periphery B of the connecting and positioning collar.
- the receiving part additionally comprises at least one, forming on the connection base, first connecting and positioning groove which surrounds the pressure spring above the second connecting and positioning groove and the inner circumference A is greater as the outer periphery B of the connecting and positioning collar.
- the gas stove according to the invention is characterized in that the length C of the diagonal of the central cross section of the connecting and positioning collar is smaller than the inner circumference A of the first connecting and positioning groove.
- the gas stove according to the invention is characterized in that the dimension of the ignition electrode opening is smaller than the outer circumference B of the connecting and positioning collar. This allows the cover plate without an additional position indicator of the ignition electrode at the top takes over the function of a limiting element with respect to a movement of the ignition electrode upwards.
- the gas stove according to the invention is characterized in that an electrical conductor of the ignition electrode extends through a conductor opening below the second connection and positioning groove under the connection base and that on, located below the connection base, conductor portion a spring ring engages, which at the same time rests tightly on the connection socket.
- the spring ring is used for pre-positioning of the ignition electrode, that is, the height of the ignition electrode can be preset prior to mounting the cover plate by the frictional force between the spring ring and conductor of the ignition electrode is predetermined. In this way, the alignment of the ignition electrode and the ignition electrode opening can be realized more easily when installing the cover plate. This applies in particular to gas stoves with two or more ignition electrode openings.
- the gas stove according to the invention is characterized in that the clamping force between the spring ring and conductor is approximately 3N.
- a frictional force of approximately 3N can be generated, i.
- the maximum spring force of the compression spring does not exceed. For example, can, if the installation position of the ignition electrode is lower than the preset position, by a too large pressure on the compression spring, a spring force of more than 3N are generated.
- the gas stove according to the invention is characterized by a spring ring of rubber material.
- rubber offers advantages such as suitable properties, ease of manufacture and low costs.
- the gas stove according to the invention is characterized in that the first and the second connecting and positioning groove and the conductor opening together form a through hole, which communicates via a narrow recess with the outside of the connecting base.
- the gas stove according to the invention is characterized in that, to exploiting Dende at the bottom of the ignition electrode, recess serves as an electrode connection portion, and the spring between the receiving part and the catch recess is arranged.
- the spring device according to the invention and the ignition electrode are combined with the fixed structure of the existing burner and thus reduces the processing costs.
- a gas stove 30 according to the invention is shown with a connecting base 6, wherein the connecting base 6 is provided with at least one receiving part 10 or 23 for receiving an ignition electrode 4.
- the ignition electrode 4 has an insulating ceramic shell 3 and at least one electrode connecting part 8 and is connected to the connecting base 6 by a connection of the receiving part 10 or 23 and the electrode connecting part 8.
- a spring device 24 Between the receiving part 10 or 23 and the electrode connecting part 8 is a spring device 24.
- the gas stove according to the invention is provided by this, provided between the ignition electrode connection base and the ignition electrode, spring device, the risk of damage or destruction of the insulating ceramic jacket of the ignition electrode by externally applied impact forces significantly reduced.
- the cover plate 5 is provided at one of the ignition electrode 4 associated point with a Zündelektrodenö réelle 9.
- the cover plate 5 is attached by means not shown fasteners, such as screws, serving as a connection base 6 burner socket.
- the connecting base 6 is located below the cover plate 5 and is fastened by a connecting arm 37 to a lower housing part (not shown) of the gas range.
- the electrode connecting part is a connecting and positioning collar 8 and the receiving part comprises at least one second connecting and positioning groove 23. Between the underside of the connecting and positioning collar and the second connecting and positioning groove 23 is the spring device in the form of a Compression spring 24.
- a design of the spring device proves to be easy to perform as a compression spring.
- the receiving part additionally comprises at least one, forming on the connecting base 6, first connecting and positioning groove 10 which surrounds above the second connecting and positioning groove 23, the compression spring 24 and whose inner circumference A is greater than the outer circumference B of the connection and Positionierkragens 8.
- a stable stop for the lower part of the compression spring can be created by the second connecting and positioning groove 23.
- a first connection and positioning groove 10 and determining the dimensional ratio between this and the positioning collar 8 can be beyond the circumference of the positioning collar 8 of the ignition electrode clearance for a radial displacement and for a free rotation of the ignition electrode to create about its axis.
- the length C of the diagonal of the central cross section of the connecting and positioning collar 8 is smaller than the inner circumference A of the first connecting and positioning groove 10.
- the dimension of the ignition electrode opening is smaller than that outer circumference B of the connecting and positioning collar 8.
- the ignition electrode has an electrical conductor 36 which extends through a conductor opening below the second connection and positioning groove 23 below the connection base 6.
- a spring ring 28 At the below the connecting base 6 located conductor section engages a spring ring 28, which at the same time rests tightly against the connection socket.
- This spring ring 28 is used for pre-positioning of the ignition electrode, ie, the height of the ignition electrode can be preset before mounting the cover plate by the frictional force between the spring ring 28 and conductor 36 of the ignition electrode is predetermined. In this way, the alignment of the ignition electrode and the ignition electrode opening can be realized more easily when installing the cover plate.
- the clamping force between spring ring 28 and conductor 36 is approximately 3N.
- a frictional force of approximately 3N is generated between spring ring and conductor, ie there is no relative displacement between the spring ring and conductor when the frictional force between the two 3N, the maximum spring force of the compression spring does not exceed. For example, if the installation position of the ignition electrode is lower than its preset position, by a too large pressure on the compression spring, a spring force of more than 3N can be generated.
- the spring ring 28 is made of rubber material. Rubber as a material for spring elements offers advantages such as suitable properties, ease of manufacture and low costs. Alternatively, however, other elastic materials, such as silica gel or plastic composites, can be used.
- connection base which communicates via a narrow recess 29 with the outside of the connection socket 6.
- an already equipped with a compression spring ignition electrode can be brought with its head through the narrow recess in its installed position by the ignition electrode is pulled down so that it enters the preset position and engages in the spring ring.
- this design proves to be particularly easy to install.
- FIG 8th shows an alternative embodiment of the connection structure of the ignition electrode of the gas range according to the invention, which differs from the first embodiment in that one, located on the connecting and positioning collar 8 'on the underside of the ignition electrode, recessed recess 26 serves as an electrode connection part and the spring 24 'is located between the receiving part 23 and this latching recess 26.
- the spring device according to the invention and the ignition electrode are combined with the fixed structure of the existing burner and thus reduces the processing costs.
- the aforementioned embodiments of the invention can relate to one another in terms of content.
- the present invention is not limited only to the above-described embodiment (s), but includes all possible variants that can be found in the claims and the description of the present patent application.
Abstract
Description
Die vorliegende Erfindung bezieht sich auf ein Gasgerät, insbesondere auf einen Gasherd als Haushaltsgerät.The present invention relates to a gas appliance, in particular a gas stove as a household appliance.
Der Begriff "Gasherd" umfasst im Folgenden sowohl Standherde mit mindestens einer Gaskochstelle, als auch separate Gaskochstellen, wie beispielsweise Gaskochmulden. Bei den aus dem Stand der Technik bekannten Gasherden erfolgt das Zünden des Gases in der Regel durch eine elektrische Zündung mittels Zündelektroden. Diese stellen eines der wichtigsten Stellglieder für die Zündung dar und als Zündelektrode wird meistens eine Piezo-Elektrode eingesetzt. Eine derartige Zündelektrode besteht üblicherweise aus der eigentlichen Elektrode und einer isolierenden Keramikschicht, die unter hohen Temperaturen auf die Außenseite der Elektrode aufgetragen wird. Die Zündelektrode ist über elektrische Leitungen mit der Steuereinheit des Gasherdes verbunden. Bei herkömmlichen Gasherden sind die Zündelektroden oft unmittelbar an die jeweiligen Einbauplätze angeschlossen, wobei sich die Einbauplätze fast alle innerhalb eines Brenners des Gasherdes in der Nähe des jeweiligen Gasaustritts befinden. Zum Reinigen der Brennerumgebung wird der Brenner gewöhnlich aus seiner Betriebsposition entfernt und nach der Reinigung wieder eingebaut. Bei ausgebautem Brenner ragen die Zündelektroden ungeschützt aus der Herdoberfläche hervor und können dann durch schwere Gegenstände oder während Ausbau und Wiedereinbau des Brenners von diesem angestoßen werden. Um jedoch eine ausreichende Haltbarkeit des Brenners unter realen Einsatzbedingungen wie z.B. hohen Temperaturen zu gewährleisten, sind Brenner für Gasherde meistens aus Messing oder ähnlichem Metall hergestellt und sind infolgedessen sowohl hart als auch schwer. Dies kann möglicherweise eine Beschädigung oder sogar die Ablösung der isolierenden Keramikschicht verursachen. Löst sich die keramische Isolierschicht ab, so werden außer den ursprünglich freiliegenden Elektrodenteilen noch weitere Teile exponiert. Dadurch kann sich bei der elektrischen Zündung die Stelle, an der die Funken erzeugt werden sollen, verschieben, was zu einem Zündaussetzer führt.The term "gas stove" in the following includes both stoves with at least one gas hob, as well as separate gas hobs, such as gas hobs. In the gas stoves known from the prior art, the ignition of the gas is usually carried out by an electric ignition by means of ignition electrodes. These represent one of the most important actuators for the ignition and ignition electrode is usually a piezoelectric electrode used. Such a starting electrode usually consists of the actual electrode and an insulating ceramic layer which is applied to the outside of the electrode at high temperatures. The ignition electrode is connected via electrical lines to the control unit of the gas stove. In conventional gas stoves the ignition electrodes are often connected directly to the respective bays, with the bays are almost all within a burner of the gas stove in the vicinity of the respective gas outlet. To clean the burner environment, the burner is usually removed from its operating position and reinstalled after cleaning. When the burner is removed, the ignition electrodes protrude from the stove surface without protection and can then be triggered by heavy objects or during removal and replacement of the burner. However, in order to ensure sufficient durability of the burner under real-life conditions such as e.g. To ensure high temperatures, burners for gas stoves are usually made of brass or similar metal and are consequently both hard and heavy. This may possibly cause damage or even detachment of the insulating ceramic layer. If the ceramic insulating layer dissolves, then in addition to the originally exposed electrode parts, further parts are exposed. As a result, the point at which the sparks are to be generated can shift during the electrical ignition, which leads to a misfiring.
Um den oben genannten Problemen im Stand der Technik zu begegnen, bietet die vorliegende Erfindung einen Gasherd mit einer verbesserten Zündelektroden-Verbindungsstruktur an.In order to meet the above-mentioned problems in the prior art, the present invention offers a gas stove with an improved ignition electrode connection structure.
Erfindungsgemäß wird diese Aufgabe durch einen Gasherd gelöst, der eine Deckplatte mit einer ersten Zündelektrodenöffnung, einen Verbindungssockel, welcher sich unterhalb der Deckplatte befindet und mit zumindest einem Aufnahmeteil zur Aufnahme einer Zündelektrode versehen ist und eine Zündelektrode, welche einen isolierenden Keramikmantel und mindestens einen Elektroden-Verbindungsteil aufweist und mit Hilfe einer Verbindung von Aufnahmeteil und Elektroden-Verbindungsteil mit dem Verbindungssockel verbunden ist, umfasst. Ein derartiger Gasherd ist durch eine Federvorrichtung zwischen dem Aufnahmeteil und dem Elektroden-Verbindungsteil gekennzeichnet. Beim erfindungsgemäßen Gasherd wird durch diese, zwischen dem Zündelektroden-Verbindungssockel und der Zündelektrode vorgesehene, Federvorrichtung die Gefahr einer Beschädigung bzw. Zerstörung des isolierenden Keramikmantels der Zündelektrode durch von außen einwirkende Stoßkräfte erheblich reduziert.According to the invention, this object is achieved by a gas stove which has a cover plate with a first ignition electrode opening, a connection base which is located below the cover plate and is provided with at least one receiving part for receiving an ignition electrode and an ignition electrode which has an insulating ceramic jacket and at least one electrode. Connecting part and is connected by means of a connection of receiving part and electrode connecting part with the connecting base comprises. Such a gas stove is characterized by a spring device between the receiving part and the electrode connecting part. In the case of the gas stove according to the invention, the danger of damage or destruction of the insulating ceramic jacket of the ignition electrode due to impact forces acting from outside is considerably reduced by this spring device provided between the ignition electrode connection base and the ignition electrode.
In einer weiteren bevorzugten Ausführungsform der Erfindung ist der erfindungsgemäße Gasherd durch eine Druckfeder als Federvorrichtung gekennzeichnet. Bei der Verwendung von Druckfedern als erfindungsgemäße Federvorrichtung können Normteile eingesetzt und somit die Herstellungskosten gesenkt werden.In a further preferred embodiment of the invention, the gas stove according to the invention is characterized by a compression spring as a spring device. When using compression springs as spring device according to the invention standard parts can be used and thus the manufacturing cost can be reduced.
In einer weiteren bevorzugten Ausführungsform der Erfindung ist der erfindungsgemäße Gasherd dadurch gekennzeichnet, dass der Elektroden-Verbindungsteil als Verbindungs- und Positionierkragen und der Verbindungssockel als Brennerfassung ausgebildet sind, dass der Aufnahmeteil mindestens eine zweite Verbindungs- und Positioniernut umfasst und dass die Druckfeder zwischen der unteren Oberfläche des Verbindungs- und Positionierkragens und der zweiten Verbindungs- und Positioniernut angeordnet ist. Diese Ausführungsform erweist sich hinsichtlich der Bearbeitung und Herstellung sowie der Auswahl der Bauelemente als leicht ausführbar.In a further preferred embodiment of the invention, the gas stove according to the invention is characterized in that the electrode connection part as connecting and positioning collar and the connecting base are formed as a burner holder, that the receiving part comprises at least a second connecting and positioning groove and that the compression spring between the lower Surface of the connecting and positioning collar and the second connection and positioning groove is arranged. This embodiment proves to be easy to carry out with regard to the machining and production as well as the selection of the components.
In einer weiteren Ausführungsform der Erfindung ist der erfindungsgemäße Gasherd dadurch gekennzeichnet, dass sich von der Unterseite des Verbindungs- und Positionierkragens des isolierenden Keramikmantels aus ein Verlängerungsabschnitt erstreckt, der vom oberen Teil der Druckfeder umgeben wird. Technisch ist dieser Verlängerungsabschnitt vorgesehen, um eine mögliche Verschiebung der Druckfeder an ihrer Montageposition zu vermeiden, d.h. um der Druckfeder eine stabile Stütze zu gewähren.In a further embodiment of the invention, the gas stove according to the invention is characterized in that extends from the underside of the connecting and positioning collar of the insulating ceramic sheath from an extension portion of the Surrounding the upper part of the compression spring. Technically, this extension section is provided in order to avoid a possible displacement of the compression spring at its mounting position, ie to grant the compression spring a stable support.
In einer weiteren Ausführungsform der Erfindung ist der erfindungsgemäße Gasherd dadurch gekennzeichnet, dass der Aufnahmeteil zusätzlich mindestens eine, sich am Verbindungssockel ausbildende, erste Verbindungs- und Positioniernut umfasst, die oberhalb der zweiten Verbindungs- und Positioniernut die Druckfeder umschließt und deren innerer Umfang A größer ist als der äußere Umfang B des Verbindungs- und Positionierkragens. Hiermit wird eine bevorzugte, strukturelle Ausgestaltung für Fälle mit einer Druckfeder als Federvorrichtung geliefert. So kann zum Beispiel durch die zweite Verbindungs- und Positioniernut ein stabiler Anschlag für den unteren Teil der Druckfeder ermöglicht werden. Durch Vorsehung einer ersten Verbindungs- und Positioniernut und Festlegung des Abmessungsverhältnisses zwischen dieser und dem Positionierkragen lassen sich darüber hinaus entlang des Umfangs des Positionierkragens der Zündelektrode Spielräume für eine radiale Verschiebung sowie für eine freie Drehung der Zündelektrode um ihre Achse schaffen.In a further embodiment of the invention, the gas stove according to the invention is characterized in that the receiving part additionally comprises at least one, forming on the connection base, first connecting and positioning groove which surrounds the pressure spring above the second connecting and positioning groove and the inner circumference A is greater as the outer periphery B of the connecting and positioning collar. Hereby, a preferred, structural design for cases with a compression spring is supplied as a spring device. Thus, for example, a stable stop for the lower part of the compression spring can be made possible by the second connecting and positioning groove. By providing a first connection and positioning groove and determining the dimensional ratio between the latter and the positioning collar, it is also possible to create clearances for a radial displacement and for a free rotation of the ignition electrode about its axis along the circumference of the positioning collar of the ignition electrode.
Um der Zündelektrode einen größeren Verschiebungsspielraum zu ermöglichen, ist in einer weiteren Ausführungsform der Erfindung der erfindungsgemäße Gasherd dadurch gekennzeichnet, dass die Länge C der Diagonale des Mittelquerschnitts des Verbindungs- und Positionierkragens kleiner ist als der innere Umfang A der ersten Verbindungs- und Positioniernut.In order to allow the ignition electrode a greater displacement latitude, in a further embodiment of the invention, the gas stove according to the invention is characterized in that the length C of the diagonal of the central cross section of the connecting and positioning collar is smaller than the inner circumference A of the first connecting and positioning groove.
In einer weiteren Ausführungsform der Erfindung ist der erfindungsgemäße Gasherd dadurch gekennzeichnet, dass die Abmessung der Zündelektrodenöffnung kleiner ist als der äußere Umfang B des Verbindungs- und Positionierkragens. Dies ermöglicht, dass die Deckplatte ohne eine zusätzliche Positionsanzeige der Zündelektrode nach oben hin die Funktion eines Begrenzungselements hinsichtlich einer Bewegung der Zündelektrode nach oben übernimmt.In a further embodiment of the invention, the gas stove according to the invention is characterized in that the dimension of the ignition electrode opening is smaller than the outer circumference B of the connecting and positioning collar. This allows the cover plate without an additional position indicator of the ignition electrode at the top takes over the function of a limiting element with respect to a movement of the ignition electrode upwards.
In einer weiteren Ausführungsform der Erfindung ist der erfindungsgemäße Gasherd dadurch gekennzeichnet, dass sich ein elektrischer Leiter der Zündelektrode durch eine Leiteröffnung unterhalb der zweiten Verbindungs- und Positioniernut unter den Verbindungssockel erstreckt und dass am, sich unterhalb des Verbindungssockels befindenden, Leiterabschnitt ein Federring greift, welcher zugleich eng am Verbindungssockel anliegt. Bei dieser Ausgestaltung dient der Federring zur Vorpositionierung der Zündelektrode, d.h. es kann die Höhe der Zündelektrode vor der Montage der Deckplatte voreingestellt werden, indem die Reibungskraft zwischen Federring und Leiter der Zündelektrode vorbestimmt wird. Auf diese Weise lässt sich beim Einbau der Deckplatte die Fluchtung von Zündelektrode und Zündelektrodenöffnung leichter realisieren. Dies gilt insbesondere für Gasherde mit zwei oder mehr Zündelektrodenöffnungen.In a further embodiment of the invention, the gas stove according to the invention is characterized in that an electrical conductor of the ignition electrode extends through a conductor opening below the second connection and positioning groove under the connection base and that on, located below the connection base, conductor portion a spring ring engages, which at the same time rests tightly on the connection socket. In this embodiment, the spring ring is used for pre-positioning of the ignition electrode, that is, the height of the ignition electrode can be preset prior to mounting the cover plate by the frictional force between the spring ring and conductor of the ignition electrode is predetermined. In this way, the alignment of the ignition electrode and the ignition electrode opening can be realized more easily when installing the cover plate. This applies in particular to gas stoves with two or more ignition electrode openings.
In einer weiteren Ausführungsform der Erfindung ist der erfindungsgemäße Gasherd dadurch gekennzeichnet, dass die Klemmkraft zwischen Federring und Leiter ungefähr 3N beträgt. Mit dieser Ausgestaltung kann bei einer gleichmäßigen Auslegung des gesamten Zündelektrodensystems zwischen Federring und Leiter eine Reibungskraft von ungefähr 3N erzeugt werden, d.h. es entsteht keine relative Verschiebung zwischen Federring und Leiter, wenn die Reibungskraft zwischen den beiden 3N, die größtmögliche Federkraft der Druckfeder, nicht übersteigt. Z.B. kann, wenn die Einbaulage der Zündelektrode tiefer ist, als deren voreingestellte Lage, durch einen zu großen Druck auf die Druckfeder, eine Federkraft von mehr als 3N erzeugt werden. Dies hat zur Folge, dass auf die Zündelektrode eine Kraft nach oben ausgeübt wird, so dass der Federring nicht mehr stabil gegenüber dem Leiter bleibt und nach unten verschoben wird. Dehnt sich die Druckfeder bis zu einer voreingestellten Länge aus, so erreicht die Zündelektrode die vorbestimmte Gleichgewichtslage gegenüber dem Verbindungssockel, in welcher sich der Federring nicht mehr verschiebt.In a further embodiment of the invention, the gas stove according to the invention is characterized in that the clamping force between the spring ring and conductor is approximately 3N. With this configuration, with a uniform design of the entire ignition electrode system between spring ring and conductor, a frictional force of approximately 3N can be generated, i. There is no relative displacement between the spring ring and the conductor when the frictional force between the two 3N, the maximum spring force of the compression spring, does not exceed. For example, can, if the installation position of the ignition electrode is lower than the preset position, by a too large pressure on the compression spring, a spring force of more than 3N are generated. This has the consequence that a force is exerted on the ignition electrode upwards, so that the spring ring is no longer stable with respect to the conductor and is moved downwards. If the compression spring expands to a pre-set length, the ignition electrode reaches the predetermined equilibrium position with respect to the connection socket in which the spring ring no longer shifts.
In einer weiteren Ausführungsform der Erfindung ist der erfindungsgemäße Gasherd durch einen Federring aus Gummimaterial gekennzeichnet. Gummi bietet als Werkstoff für Federelemente Vorteile wie geeignete Eigenschaften, einfache Herstellbarkeit und niedrige Kosten.In a further embodiment of the invention, the gas stove according to the invention is characterized by a spring ring of rubber material. As a material for spring elements, rubber offers advantages such as suitable properties, ease of manufacture and low costs.
In einer weiteren Ausführungsform der Erfindung ist der erfindungsgemäße Gasherd dadurch gekennzeichnet, dass die erste und die zweite Verbindungs- und Positioniernut und die Leiteröffnung gemeinsam ein Durchgangsloch bilden, das über eine schmale Ausnehmung mit der Außenseite des Verbindungssockels in Verbindung steht. Mit dieser Ausgestaltung kann eine bereits mit einer Druckfeder bestückte Zündelektrode mit ihrem Leiter durch die schmale Ausnehmung in ihre Einbauposition gebracht werden, indem die Zündelektrode so nach unten gezogen wird, dass sie in die voreingestellte Position gelangt und in den Federring greift. Für Zündelektroden mit längerem Leiter erweist sich diese Ausgestaltung als besonders montagefreundlich.In a further embodiment of the invention, the gas stove according to the invention is characterized in that the first and the second connecting and positioning groove and the conductor opening together form a through hole, which communicates via a narrow recess with the outside of the connecting base. With this configuration, an already equipped with a compression spring ignition electrode can be brought with its conductor through the narrow recess in its installed position by the ignition electrode is pulled down so that it enters the preset position and engages in the spring washer. For ignition electrodes with a longer conductor, this design proves to be particularly easy to install.
In einer alternativen Ausführungsform der Verbindungsstruktur der Zündelektrode des erfindungsgemäßen Gasherdes ist der erfindungsgemäße Gasherd dadurch gekennzeichnet, dass eine, sich an der Unterseite der Zündelektrode befindende, Rastausnehmung als Elektroden-Verbindungsteil dient und die Feder zwischen dem Aufnahmeteil und der Rastausnehmung angeordnet ist. Bei dieser Ausgestaltung werden die erfindungsgemäße Federvorrichtung und die Zündelektrode mit der festen Struktur des vorhandenen Brenners kombiniert und damit die Bearbeitungskosten gesenkt.In an alternative embodiment of the connection structure of the igniter of the gas range of the present invention, the gas stove according to the invention is characterized in that, to exploiting Dende at the bottom of the ignition electrode, recess serves as an electrode connection portion, and the spring between the receiving part and the catch recess is arranged. In this embodiment, the spring device according to the invention and the ignition electrode are combined with the fixed structure of the existing burner and thus reduces the processing costs.
Nachfolgend wird die vorliegende Erfindung anhand von beigefügten Zeichnungen und Ausführungsbeispielen näher erläutert. Dabei zeigen:
- FIG. 1
- eine Schnittdarstellung einer Verbindungsstruktur für die Zündelektroden eines Gasherdes entsprechend dem Stand der Technik,
- FIG. 2
- einen schematischen Teilaufbau eines erfindungsgemäßen Gasherdes,
- FIG. 3
- einen Teilschnitt eines ersten Ausführungsbeispiels einer Verbindungsstruktur einer Federvorrichtung eines erfindungsgemäßen Gasherdes,
- FIG. 4
- eine dreidimensionale schematische Darstellung einer Zündelektrode eines erfin- dungsgemäßen Gasherdes,
- FIG. 5
- einen dreidimensionalen Ausschnitt eines Verbindungssockels in einem ersten Ausführungsbeispiel einer Verbindungsstruktur einer Federvorrichtung eines er- findungsgemäßen Gasherdes,
- FIG. 6
- einen Teilschnitt der konstruktiven Ausgestaltung eines Verbindungssockels in einem ersten Ausführungsbeispiel einer Verbindungsstruktur einer Federvorrich- tung eines erfindungsgemäßen Gasherdes,
- FIG. 7
- eine dreidimensionale Explosionsansicht eines ersten Ausführungsbeispiels einer Verbindungsstruktur einer Federvorrichtung eines erfindungsgemäßen Gasher- des und
- FIG. 8
- einen Teilschnitt eines zweiten Ausführungsbeispiels einer Verbindungsstruktur einer Federvorrichtung eines erfindungsgemäßen Gasherdes.
- FIG. 1
- a sectional view of a connection structure for the ignition electrodes of a gas stove according to the prior art,
- FIG. 2
- a schematic partial structure of a gas stove according to the invention,
- FIG. 3
- a partial section of a first embodiment of a connecting structure of a spring device of a gas range according to the invention,
- FIG. 4
- 3 shows a three-dimensional schematic representation of an ignition electrode of a gas range according to the invention,
- FIG. 5
- 3 shows a three-dimensional section of a connection socket in a first exemplary embodiment of a connection structure of a spring device of a gas range according to the invention,
- FIG. 6
- 1 is a partial section of the structural design of a connection socket in a first embodiment of a connection structure of a spring device of a gas range according to the invention,
- FIG. 7
- a three-dimensional exploded view of a first embodiment of a connecting structure of a spring device of a Gasher- invention and
- FIG. 8th
- a partial section of a second embodiment of a connecting structure of a spring device of a gas range according to the invention.
In
So kann zum Beispiel durch die zweite Verbindungs- und Positioniernut 23 ein stabiler Anschlag für den unteren Teil der Druckfeder geschaffen werden. Durch Vorsehen einer ersten Verbindungs- und Positioniernut 10 und Festlegung des Abmessungsverhältnisses zwischen dieser und dem Positionierkragen 8 lassen sich darüber hinaus entlang des Umfangs des Positionierkragens 8 der Zündelektrode Spielräume für eine radiale Verschiebung sowie für eine freie Drehung der Zündelektrode um ihre Achse schaffen. Um der Zündelektrode einen größeren Verschiebungsspielraum zu ermöglichen, ist vorgesehen, dass die Länge C der Diagonale des Mittelquerschnitts des Verbindungs- und Positionierkragens 8 kleiner ist als der innere Umfang A der ersten Verbindungs- und Positioniernut 10. Ferner ist die Abmessung der Zündelektrodenöffnung kleiner als der äußere Umfangs B des Verbindungs- und Positionierkragens 8. Dies ermöglicht, dass die Deckplatte ohne eine zusätzliche Positionsanzeige der Zündelektrode nach oben hin die Funktion eines Begrenzungselements hinsichtlich einer Bewegung der Zündelektrode nach oben übernimmt. Darüber hinaus verfügt die Zündelektrode über einen elektrischen Leiter 36, der sich durch eine Leiteröffnung unterhalb der zweiten Verbindungs- und Positioniernut 23 unter den Verbindungssockel 6 erstreckt. Am sich unterhalb des Verbindungssockels 6 befindenden Leiterabschnitt greift ein Federring 28, welcher zugleich eng am Verbindungssockel anliegt. Dieser Federring 28 dient zur Vorpositionierung der Zündelektrode, d.h. die Höhe der Zündelektrode kann vor der Montage der Deckplatte voreingestellt werden, indem die Reibungskraft zwischen Federring 28 und Leiter 36 der Zündelektrode vorbestimmt wird. Auf diese Weise lässt sich beim Einbau der Deckplatte die Fluchtung von Zündelektrode und Zündelektrodenöffnung leichter realisieren. Dies gilt insbesondere für Gasherde mit zwei oder mehr Zündelektrodenöffnungen. Die Klemmkraft zwischen Federring 28 und Leiter 36 beträgt ungefähr 3N. Bei einer gleichmäßigen Auslegung des gesamten Zündelektrodensystems wird zwischen Federring und Leiter eine Reibungskraft von ungefähr 3N erzeugt, d.h. es entsteht keine relative Verschiebung zwischen Federring und Leiter, wenn die Reibungskraft zwischen den beiden 3N, die größtmögliche Federkraft der Druckfeder, nicht übersteigt. Z.B. kann, wenn die Einbaulage der Zündelektrode tiefer ist, als deren voreingestellte Lage, durch einen zu großen Druck auf die Druckfeder eine Federkraft von mehr als 3N erzeugt werden. Dies hat zur Folge, dass auf die Zündelektrode eine Kraft nach oben ausgeübt wird, so dass der Federring nicht mehr stabil gegenüber dem Leiter bleibt und sich nach unten verschiebt. Gleichzeitig dehnt sich die Druckfeder aus und, wenn sich die Druckfeder bis zu einer Länge entsprechend der voreingestellten Reibungskraft von 3N zwischen Leiter und Federring dehnt, erreicht die Zündelektrode die vorbestimmte Gleichgewichtslage gegenüber dem Verbindungssockel, in welcher sich der Federring nicht mehr verschiebt. Der Federring 28 besteht aus Gummimaterial. Gummi als Werkstoff für Federelemente bietet Vorteile wie geeignete Eigenschaften, einfache Herstellbarkeit und niedrige Kosten. Alternativ können aber auch andere elastische Werkstoffe, wie beispielsweise Silikagel oder Kunststoffverbundwerkstoffe, eingesetzt werden. Die erste und die zweite Verbindungs- und Positioniernut 23 und die Leiteröffnung münden ineinander und bilden somit ein durch den Verbindungssockel hindurch verlaufendes Durchgangsloch, das über eine schmale Ausnehmung 29 mit der Außenseite des Verbindungssockels 6 in Verbindung steht. Auf diese Weise kann eine bereits mit einer Druckfeder bestückte Zündelektrode mit ihrem Leiter durch die schmale Ausnehmung in ihre Einbauposition gebracht werden, indem die Zündelektrode so nach unten gezogen wird, dass sie in die voreingestellte Position gelangt und in den Federring greift. Für Zündelektroden mit längerem Leiter erweist sich diese Ausgestaltung als besonders montagefreundlich.
Ergänzend ist anzumerken, dass die genannten Ausführungsformen der Erfindung inhaltlich Bezug aufeinander nehmen können. So versteht es sich, dass die vorliegende Erfindung nicht nur auf die oben beschriebene(n) Ausführungsform(en) beschränkt ist, sondern alle möglichen Varianten einschließt, die den Patentansprüchen und der Beschreibung der vorliegenden Patentanmeldung zu entnehmen sind.For example, a stable stop for the lower part of the compression spring can be created by the second connecting and
In addition, it should be noted that the aforementioned embodiments of the invention can relate to one another in terms of content. Thus, it is to be understood that the present invention is not limited only to the above-described embodiment (s), but includes all possible variants that can be found in the claims and the description of the present patent application.
- 33
- Isolierender KeramikmantelInsulating ceramic coat
- 44
- Zündelektrodeignition electrode
- 55
- Deckplattecover plate
- 66
- Verbindungssockelconnection socket
- 88th
- Verbindungs- und PositionierkragenConnecting and positioning collar
- 8'8th'
- Verbindungs- und PositionierkragenConnecting and positioning collar
- 99
- ZündelektrodenöffnungZündelektrodenöffnung
- 1010
- Erste Verbindungs- und PositioniernutFirst connection and positioning groove
- 2323
- Zweite Verbindungs- und PositioniernutSecond connection and positioning groove
- 2424
- Federelement/DruckfederBungee / compression spring
- 24'24 '
- Federelementspring element
- 2626
- Rastausnehmungrecess
- 2727
- Verlängerungsabschnittextension section
- 2828
- Federringspring washer
- 2929
- Schmale AusnehmungNarrow recess
- 3030
- Gasherdgas cooker
- 3131
- Brennerburner
- 3232
- Thermoelementthermocouple
- 3333
- Schalterswitch
- 3434
- VentilValve
- 3535
- Gaszuleitunggas supply
- 3636
- Elektrischer LeiterElectrical conductor
- 3737
- Verbindungsarmconnecting arm
- 3838
- Erste ZündelektrodenöffnungFirst ignition electrode opening
Claims (12)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN200910031865.3A CN101929686B (en) | 2009-06-26 | 2009-06-26 | Gas-cooker |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2267371A2 true EP2267371A2 (en) | 2010-12-29 |
EP2267371A3 EP2267371A3 (en) | 2012-09-19 |
EP2267371B1 EP2267371B1 (en) | 2015-01-21 |
Family
ID=42989483
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP10167280.6A Active EP2267371B1 (en) | 2009-06-26 | 2010-06-25 | Gas range |
Country Status (3)
Country | Link |
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EP (1) | EP2267371B1 (en) |
CN (1) | CN101929686B (en) |
ES (1) | ES2529492T3 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015092686A1 (en) * | 2013-12-18 | 2015-06-25 | BSH Hausgeräte GmbH | Gas burner, gas burner arrangement and cooking zone |
WO2016157006A1 (en) * | 2015-03-31 | 2016-10-06 | BSH Hausgeräte GmbH | Gas burner and gas cooktop |
US10317087B2 (en) | 2016-04-11 | 2019-06-11 | Bsh Home Appliances Corporation | Self-adjusting burner igniter for gas cooktops |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN104728872B (en) * | 2015-03-06 | 2017-07-04 | 广东美的厨房电器制造有限公司 | Burner and gas appliance |
CN108343985A (en) * | 2018-02-06 | 2018-07-31 | 扬州嘉华电气股份有限公司 | One kind exempting from glue ignition electrode |
CN108986614A (en) * | 2018-10-08 | 2018-12-11 | 湖南商学院 | A kind of physics experiment teaching device and experimental method of magnetic field control plasma |
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JPS61130733A (en) * | 1984-11-30 | 1986-06-18 | Matsushita Electric Ind Co Ltd | Thermocouple fixing device |
DE19801913A1 (en) * | 1998-01-20 | 1999-07-22 | Rauschert Gmbh & Co Kg Paul | Method and device for the sealed fastening of a burner electrode |
US5836756A (en) * | 1998-01-26 | 1998-11-17 | Channel Products, Inc. | Gas collector electrode assembly |
KR20010090284A (en) * | 2000-03-24 | 2001-10-18 | 구자홍 | structure for gas burner |
US6589046B2 (en) * | 2001-08-21 | 2003-07-08 | Uwe Harneit | Gas burner for outdoor cooking |
WO2003058126A1 (en) * | 2002-01-08 | 2003-07-17 | Arçelik A.S. | A cooking device |
CN2600718Y (en) * | 2003-02-22 | 2004-01-21 | 林庆森 | Burner of gas stove |
CN201000110Y (en) * | 2006-09-22 | 2008-01-02 | 盛怡(香港)有限公司 | Novel ignition device of household gas kitchen range |
-
2009
- 2009-06-26 CN CN200910031865.3A patent/CN101929686B/en active Active
-
2010
- 2010-06-25 ES ES10167280.6T patent/ES2529492T3/en active Active
- 2010-06-25 EP EP10167280.6A patent/EP2267371B1/en active Active
Non-Patent Citations (1)
Title |
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None |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015092686A1 (en) * | 2013-12-18 | 2015-06-25 | BSH Hausgeräte GmbH | Gas burner, gas burner arrangement and cooking zone |
US10190779B2 (en) | 2013-12-18 | 2019-01-29 | BSH Hausgeräte GmbH | Gas burner, gas burner arrangement and cooking zone |
WO2016157006A1 (en) * | 2015-03-31 | 2016-10-06 | BSH Hausgeräte GmbH | Gas burner and gas cooktop |
US10655845B2 (en) | 2015-03-31 | 2020-05-19 | BSH Hausgeräte GmbH | Gas burner and gas cooktop |
US10317087B2 (en) | 2016-04-11 | 2019-06-11 | Bsh Home Appliances Corporation | Self-adjusting burner igniter for gas cooktops |
Also Published As
Publication number | Publication date |
---|---|
CN101929686B (en) | 2015-08-05 |
CN101929686A (en) | 2010-12-29 |
EP2267371B1 (en) | 2015-01-21 |
ES2529492T3 (en) | 2015-02-20 |
EP2267371A3 (en) | 2012-09-19 |
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