EP2763497B1 - Heating element for infrared radiator - Google Patents

Heating element for infrared radiator Download PDF

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Publication number
EP2763497B1
EP2763497B1 EP13153850.6A EP13153850A EP2763497B1 EP 2763497 B1 EP2763497 B1 EP 2763497B1 EP 13153850 A EP13153850 A EP 13153850A EP 2763497 B1 EP2763497 B1 EP 2763497B1
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EP
European Patent Office
Prior art keywords
heating element
strips
infrared radiator
crosspieces
radiator according
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EP13153850.6A
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German (de)
French (fr)
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EP2763497A1 (en
Inventor
Hans Ulrich Jordi
Rolf Lüscher
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Krelus AG
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Krelus AG
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Priority to EP13153850.6A priority Critical patent/EP2763497B1/en
Priority to PL13153850T priority patent/PL2763497T3/en
Priority to SI201330145T priority patent/SI2763497T1/en
Priority to ES13153850.6T priority patent/ES2562906T3/en
Publication of EP2763497A1 publication Critical patent/EP2763497A1/en
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Publication of EP2763497B1 publication Critical patent/EP2763497B1/en
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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/10—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
    • H05B3/12—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
    • H05B3/34—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater flexible, e.g. heating nets or webs
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/40—Heating elements having the shape of rods or tubes
    • H05B3/54—Heating elements having the shape of rods or tubes flexible
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/002—Heaters using a particular layout for the resistive material or resistive elements
    • H05B2203/003—Heaters using a particular layout for the resistive material or resistive elements using serpentine layout
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/011—Heaters using laterally extending conductive material as connecting means
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/017—Manufacturing methods or apparatus for heaters

Definitions

  • the present invention relates to a heating element for infrared radiators, consisting of a plurality of substantially parallel juxtaposed film strips, which are formed of a resistance material, each strip having an end portion connected to the one end portion of the adjacent strip via connecting pieces, so that the Strip form a continuous ladder.
  • Infrared radiators with such heating elements are known in many ways. These serve, in particular, to bring a wide variety of products and materials to the desired processing temperatures in industrial heating and heating processes.
  • Known infrared radiators comprise, for example, an insulating body, on which film-like strips are placed and fastened individually and essentially parallel next to one another.
  • the attachment is preferably carried out with clamps which are pressed over the strips in the insulator.
  • the strips may in this case have a zigzag-shaped fold, which is aligned transversely to the longitudinal direction of the strips.
  • infrared radiators In order to heat or dry large areas, several such infrared radiator are arranged side by side and / or one behind the other. In known manner, these individual infrared radiators can also be individually supplied with power and regulated, thereby larger areas in the desired mass can be heated or dried individually.
  • the object of the present invention is now to design a radiator for an infrared radiator such that the handling in the assembly of infrared radiators is simplified and thereby leads to cheaper production costs.
  • the solution of this object is achieved in that the heating element with the strips and the connecting pieces and arranged between the strip connecting webs is cut in one piece from a film-like body, which connecting webs connect the strips transversely to each other.
  • the heating element which is formed from the continuous strip, a forms stable structure, which has the stability of a film and thus allows optimum handling for placement and attachment to the insulating body.
  • the width of these connecting webs corresponds at most to about the eighth part of the width of the strips.
  • the strips are folded in a zigzag shape transversely to the longitudinal direction, which results in a better radiation of the heat.
  • a further advantageous embodiment of the invention is that holding webs are provided on the connecting pieces on both sides of the heating element.
  • the heating element so equipped can be taken over the holding webs in an optimal manner, it can then be placed on the insulating body, on the holding webs, the heating element, due to the zigzag folding to the correct length are pulled, attaching the retaining clips is then in an optimal manner possible.
  • the holding webs are connected via further connecting webs with the connecting pieces. After insertion of the heating element in the body of the infrared radiator and the corresponding attachment by the retaining clips these holding webs are then wegschneidbar in a simple manner.
  • a heating element 1 is shown for an infrared radiator, as is known in the prior art.
  • This heating element 1 is formed from film strips 2, as previously described, which are individually stapled to the insulator of the infrared radiator.
  • the film strips 2 are usually equipped with a zigzag-shaped fold, they can thus be stretched slightly in a suitable manner during assembly, so that all film strips 2 have the same length.
  • the film strips 2 are connected to an end portion 3 with the one end portion 4 of the adjacent strip, this connection is made via connecting pieces 5, which are connected after assembly of the film strips with the end portions 3 and 4, for example by clamping. Of course, it is also possible to make the connection different, for example by riveting.
  • the beginning and the end of the heating element 1 thus formed are each equipped with a connection element 6.
  • Fig. 2 shows the top view of a manufactured heating element 7, which is cut out of a sheet-like body.
  • This sheet-like base body consists of a thin (0.03 mm to 0.08 mm thick) resistance material, which is made of a temperature-resistant alloy.
  • the heating element 7 consists of film strips 8, which are arranged substantially parallel to each other. These film strips 8 are each connected to one end portion 16 with the opposite other end portion 17 of the adjacent strip 8, the connector 9 is also cut out of the film-like body and forms with the film strip 8 a single piece, which forms the desired conductor.
  • the individual film strips 8 are connected to one another via connecting webs 10 over the entire width of the heating element 7. These connecting webs 10 are also cut in one piece with the strips 8 of the film-like body.
  • connecting webs 10 must be very narrow in relation to the final film strip. In the present embodiment, in which the strips have a width of about 5 mm, for example, these connecting webs have a width of about 0.2 mm to 1.0 mm.
  • heating element holding webs 11 On both sides of the heating element holding webs 11 are provided. These retaining webs 11 are also cut in one piece with the foil strips from the film-like base body, they are connected via further connecting webs 12 which correspond to the connecting webs 10, with the connecting pieces 9. These holding webs 11 extend substantially over the entire width of the heating element 7.
  • the cutting process can be carried out in a suitable manner, one possibility is, for example, the laser cutting, as a further possibility is the etching process, would also be possible punching, the corresponding tools an extremely high Accuracy should have, of course, but other suitable methods are possible.
  • the cut out of the film-like body part in the film strip 8 is folded zigzag, which, for example, by two equipped with corresponding zigzag surfaces rollers that are employed against each other and between which the film strips 8 are rolled, can be reached.
  • This element prepared in this way can then be placed on an insulating body, wherein the element can be held in an optimum manner via the retaining webs 11. Since the film strips 8 are folded in a zigzag shape, the two holding webs 11 can be slightly pulled apart and adapted to the length of the insulating body. Thereafter, the element can be fixed on the insulating body, which is done by brackets, which are pressed into the insulating body and which hold the film strips 8 on the insulating body.
  • the further connecting webs 12 can be cut through, the retaining webs 11 and the further connecting webs 12 are thus separated from the heating element 7.
  • Fig. 4 shows the corresponding heating element 7, from which the holding webs 11 are cut off. This heating element 7 is in this way on the insulating body of the resulting infrared radiator.
  • This infrared radiator 13 consists of a housing 14, in which the insulating body 15 is inserted and fixed. By means of brackets 18, the heating element 7 is attached to this insulating body 15.
  • the connecting webs 10, as in Fig. 4 are shown are after installation in the infrared radiator 13 still present.
  • This infrared radiator 13 can now be connected to a power source, the first passage of electricity through the heating element 7 melt the connecting webs 10, thereby obtaining a continuous heating conductor, which no longer has any cross connections, like this Fig. 5 is apparent.

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  • Resistance Heating (AREA)

Description

Die vorliegende Erfindung bezieht sich auf ein Heizelement für Infrarotstrahler, bestehend aus mehreren, im wesentlichen parallel nebeneinander angeordneten Folienstreifen, die aus einem Widerstandsmaterial gebildet sind, wobei jeder Streifen mit einem Endbereich mit dem einen Endbereich des benachbarten Streifens über Verbindungsstücke verbunden ist, so dass die Streifen einen fortlaufenden Leiter bilden.The present invention relates to a heating element for infrared radiators, consisting of a plurality of substantially parallel juxtaposed film strips, which are formed of a resistance material, each strip having an end portion connected to the one end portion of the adjacent strip via connecting pieces, so that the Strip form a continuous ladder.

Infrarotstrahler mit derartigen Heizelementen sind in vielfältiger Weise bekannt. Diese dienen insbesondere dazu, in industriellen Heiz- und Erwärmungsprozessen verschiedenste Produkte und Materialien auf die gewünschten Verarbeitungstemperaturen zu bringen.Infrared radiators with such heating elements are known in many ways. These serve, in particular, to bring a wide variety of products and materials to the desired processing temperatures in industrial heating and heating processes.

Bekannte Infrarotstrahler umfassen beispielsweise einen Isolationskörper, auf welchen folienartige Streifen einzeln und im Wesentlichen parallel nebeneinander angeordnet aufgesetzt und befestigt werden. Die Befestigung erfolgt vorzugsweise mit Klammern, welche über die Streifen in den Isolierkörper eingepresst werden. Die Streifen können hierbei eine zickzackförmige Faltung aufweisen, die quer zur Längsrichtung der Streifen ausgerichtet ist.Known infrared radiators comprise, for example, an insulating body, on which film-like strips are placed and fastened individually and essentially parallel next to one another. The attachment is preferably carried out with clamps which are pressed over the strips in the insulator. The strips may in this case have a zigzag-shaped fold, which is aligned transversely to the longitudinal direction of the strips.

Nach dem Anbringen dieser Streifen auf dem Isolierkörper werden jeweils zwei Enden einander gegenüberliegender Streifen über eine leitende Brücke miteinander verbunden, wobei die Verbindung zwischen Brücke und Endbereichen der Streifen durch Pressung erfolgen kann. Durch die derartig miteinander verbundenen Streifen erhält man auf dem Isolierkörper einen fortlaufenden Leiter.After attaching these strips on the insulator two ends of opposing strips are connected to each other via a conductive bridge, wherein the connection between the bridge and end portions of the strips can be made by pressing. By so interconnected strips is obtained on the insulator a continuous conductor.

Diese Streifen in einer Materialstärke von 0,03 mm bis 0,08 mm und einer Breite von 2,0 mm bis 10,0 mm weisen praktisch keine Steifigkeit auf. Die Handhabung zum Aufsetzen dieser Streifen auf den Isolierkörper und die Befestigung mit Klammern ist somit zeitaufwändig und erfordert ein gewisses Fingerspitzengefühl. Zusätzlich müssen die Enden wie vorgängig beschrieben elektrisch miteinander verbunden werden, was ebenfalls einen relativ grossen Arbeitsaufwand zur Folge hat.These strips with a thickness of 0.03 mm to 0.08 mm and a width of 2.0 mm to 10.0 mm have virtually no rigidity. The handling of placing these strips on the insulator and the attachment with brackets is thus time consuming and requires a certain tact. In addition, the ends must be as previously described be electrically connected to each other, which also has a relatively large amount of work required.

Um grosse Flächen erwärmen oder trocknen zu können, werden mehrere derartige Infrarotstrahler nebeneinander und/oder hintereinander angeordnet. In bekannter Weise können diese einzelnen Infrarotstrahler auch einzeln mit Strom versorgt und geregelt werden, dadurch können grössere Flächenbereiche im gewünschten Masse individuell erwärmt oder getrocknet werden.In order to heat or dry large areas, several such infrared radiator are arranged side by side and / or one behind the other. In known manner, these individual infrared radiators can also be individually supplied with power and regulated, thereby larger areas in the desired mass can be heated or dried individually.

Aus der Veröffentlichung US 2010/0224622 ist ein Heizelement bekannt, welches mit Streifen versehen ist, durch welche Strom geleitet wird, zwischen welchen zusätzliche Querstreifen eingelegt sind.From the publication US 2010/0224622 a heating element is known, which is provided with strips through which electricity is passed, between which additional transverse strips are inserted.

Die Aufgabe der vorliegenden Erfindung besteht nunmehr darin, einen Heizkörper für einen Infrarotstrahler derart zu gestalten, dass das Handling bei der Montage von Infrarotstrahlern vereinfacht wird und dadurch zu günstigeren Herstellungskosten führt.The object of the present invention is now to design a radiator for an infrared radiator such that the handling in the assembly of infrared radiators is simplified and thereby leads to cheaper production costs.

Erfindungsgemäss erfolgt die Lösung dieser Aufgabe dadurch, dass das Heizelement mit den Streifen und den Verbindungsstücken und zwischen den Streifen angeordneten Verbindungsstegen einstückig aus einem folienartigen Grundkörper ausgeschnitten ist, welche Verbindungsstege die Streifen quer zueinander miteinander verbinden.According to the invention, the solution of this object is achieved in that the heating element with the strips and the connecting pieces and arranged between the strip connecting webs is cut in one piece from a film-like body, which connecting webs connect the strips transversely to each other.

Dies bringt insbesondere den Vorteil, dass nicht mehr die einzelnen Streifen auf den Isolierkörper aufgebracht und befestigt werden müssen, sondern dass das gesamte Heizelement auf den Isolierkörper aufgelegt und befestigt werden kann, insbesondere müssen die Enden dieser Streifen nicht mehr leitend verbunden werden, die leitende Verbindung ist über die Verbindungsstücke in optimaler Weise gewährleistet.This brings in particular the advantage that no longer the individual strips must be applied and fixed to the insulator, but that the entire heating element can be placed and secured on the insulator, in particular the ends of these strips no longer have to be conductively connected, the conductive connection is ensured via the connectors in an optimal way.

Durch die zwischen den Streifen angebrachten Verbindungsstege, die die Streifen quer zueinander miteinander verbinden, wird erreicht, dass das Heizelement, das aus den zusammenhängenden Streifen gebildet ist, ein stabiles Gebilde bildet, welches die Stabilität einer Folie aufweist und demzufolge ein optimales Handling zum Aufsetzen und Befestigen auf den Isolierkörper ermöglicht.By the attached between the strip connecting webs, which connect the strips transversely to each other, it is achieved that the heating element, which is formed from the continuous strip, a forms stable structure, which has the stability of a film and thus allows optimum handling for placement and attachment to the insulating body.

In vorteilhafter Weise entspricht die Breite dieser Verbindungsstege maximal etwa dem achten Teil der Breite der Streifen. Bei der Inbetriebnahme der fertig montierten Infrarotstrahler und wenn das erste Mal elektrischer Strom durch das Heizelement geleitet wird, schmelzen dadurch die Verbindungsstege, das Heizelement ist dann betriebsbereit.Advantageously, the width of these connecting webs corresponds at most to about the eighth part of the width of the strips. During commissioning the ready-mounted infrared radiator and when the first time electrical current is passed through the heating element, thereby melting the connecting webs, the heating element is then ready.

In vorteilhafter Weise sind die Streifen quer zur Längsrichtung zickzack-förmig gefaltet, was eine bessere Abstrahlung der Wärme zur Folge hat.Advantageously, the strips are folded in a zigzag shape transversely to the longitudinal direction, which results in a better radiation of the heat.

Eine weitere vorteilhafte Ausgestaltung der Erfindung besteht darin, dass an den Verbindungsstücken beidseits des Heizelementes Haltestege vorgesehen sind. Das so ausgestattete Heizelement kann über die Haltestege in optimaler Weise ergriffen werden, es kann dann auf den Isolierkörper aufgesetzt werden, über die Haltestege kann das Heizelement, infolge der zickzackförmigen Faltung auf die korrekte Länge gezogen werden, das Anbringen der Halteklammern ist dann in optimaler Weise möglich.A further advantageous embodiment of the invention is that holding webs are provided on the connecting pieces on both sides of the heating element. The heating element so equipped can be taken over the holding webs in an optimal manner, it can then be placed on the insulating body, on the holding webs, the heating element, due to the zigzag folding to the correct length are pulled, attaching the retaining clips is then in an optimal manner possible.

Um diese Handhabung der Heizelemente über die Haltestege optimal möglich zu machen, erstrecken sich diese über die Breite der Heizelemente.To make this handling of the heating elements optimally possible via the retaining webs, these extend over the width of the heating elements.

In vorteilhafter Weise sind die Haltestege über weitere Verbindungsstege mit den Verbindungsstücken verbunden. Nach dem Einsetzen des Heizelementes in den Körper des Infrarotstrahlers und der entsprechenden Befestigung durch die Halteklammern sind diese Haltestege danach in einfacher Weise wegschneidbar.Advantageously, the holding webs are connected via further connecting webs with the connecting pieces. After insertion of the heating element in the body of the infrared radiator and the corresponding attachment by the retaining clips these holding webs are then wegschneidbar in a simple manner.

Eine Ausführungsform eines erfindungsgemässen Heizelementes für einen Infrarotstrahler wird nachfolgend anhand der beiliegenden Zeichnung beispielhaft näher erläutert.An embodiment of a heating element according to the invention for an infrared radiator will be explained in more detail below by way of example with reference to the accompanying drawing.

Es zeigt

  • Fig. 1 in räumlicher Darstellung eine Ausführungsform eines Heizelementes, wie es aus dem Stand der Technik bekannt ist;
  • Fig. 2 eine Draufsicht auf ein erfindungsgemässes Heizelement, wie es aus einer Folie ausgeschnitten ist;
  • Fig. 3 in räumlicher Darstellung das aus der Folie ausgeschnittene Heizelement, bei welchem die Streifen mit einer zickzackförmigen Faltung versehen sind;
  • Fig. 4 das erfindungsgemässe Heizelement gemäss Fig. 3 ebenfalls in räumlicher Darstellung, wobei die Haltestege weggeschnitten sind; und
  • Fig. 5 das erfindungsgemässe Heizelement, gemäss Fig. 4 in räumlicher Darstellung, eingesetzt und befestigt im Infrarotstrahler.
It shows
  • Fig. 1 in a spatial representation of an embodiment of a heating element, as is known from the prior art;
  • Fig. 2 a plan view of a heating element according to the invention, as it is cut out of a film;
  • Fig. 3 in a spatial representation of the cut out of the foil heating element, wherein the strips are provided with a zigzag folding;
  • Fig. 4 the inventive heating element according to Fig. 3 also in a spatial representation, wherein the holding webs are cut away; and
  • Fig. 5 the inventive heating element, according to Fig. 4 in spatial representation, used and attached in the infrared radiator.

In Fig. 1 ist ein Heizelement 1 für einen Infrarotstrahler dargestellt, wie es aus dem Stand der Technik bekannt ist. Dieses Heizelement 1 ist aus Folienstreifen 2 gebildet, wie vorgängig beschrieben worden ist, welche einzeln auf den Isolierkörper des Infrarotstrahlers aufgeheftet werden. Die Folienstreifen 2 sind üblicherweise mit einer zickzack-förmigen Faltung ausgestattet, sie können somit in geeigneter Weise bei der Montage etwas längsgedehnt werden, so dass alle Folienstreifen 2 dieselbe Länge aufweisen. Die Folienstreifen 2 sind mit einem Endbereich 3 mit dem einen Endbereich 4 des benachbarten Streifens verbunden, diese Verbindung erfolgt über Verbindungsstücke 5, die nach der Montage der Folienstreifen mit den Endbereichen 3 bzw. 4 beispielsweise durch Klemmung verbunden werden. Selbstverständlich ist es auch möglich, die Verbindung anders zu gestalten, beispielsweise durch Nieten. Der Anfang und das Ende des so gebildeten Heizelementes 1 sind jeweils mit einem Anschlusselement 6 ausgestattet.In Fig. 1 a heating element 1 is shown for an infrared radiator, as is known in the prior art. This heating element 1 is formed from film strips 2, as previously described, which are individually stapled to the insulator of the infrared radiator. The film strips 2 are usually equipped with a zigzag-shaped fold, they can thus be stretched slightly in a suitable manner during assembly, so that all film strips 2 have the same length. The film strips 2 are connected to an end portion 3 with the one end portion 4 of the adjacent strip, this connection is made via connecting pieces 5, which are connected after assembly of the film strips with the end portions 3 and 4, for example by clamping. Of course, it is also possible to make the connection different, for example by riveting. The beginning and the end of the heating element 1 thus formed are each equipped with a connection element 6.

Fig. 2 zeigt die Draufsicht auf ein herzustellendes Heizelement 7, das aus einem folienartigen Grundkörper ausgeschnitten ist. Dieser folienartige Grundkörper besteht aus einem dünnen (0,03 mm bis 0,08 mm Stärke) Widerstandsmaterial, welches aus einer temperaturbeständigen Legierung hergestellt wird. Fig. 2 shows the top view of a manufactured heating element 7, which is cut out of a sheet-like body. This sheet-like base body consists of a thin (0.03 mm to 0.08 mm thick) resistance material, which is made of a temperature-resistant alloy.

Das Heizelement 7 besteht aus Folienstreifen 8, die im Wesentlichen parallel nebeneinander angeordnet sind. Diese Folienstreifen 8 sind jeweils mit dem einen Endbereich 16 mit dem gegenüberliegenden anderen Endbereich 17 des benachbarten Streifens 8 verbunden, das Verbindungsstück 9 ist hierbei ebenfalls aus dem folienartigen Grundkörper ausgeschnitten und bildet mit den Folienstreifen 8 ein einziges Stück, das den gewünschten Leiter bildet.The heating element 7 consists of film strips 8, which are arranged substantially parallel to each other. These film strips 8 are each connected to one end portion 16 with the opposite other end portion 17 of the adjacent strip 8, the connector 9 is also cut out of the film-like body and forms with the film strip 8 a single piece, which forms the desired conductor.

Die einzelnen Folienstreifen 8 sind über Verbindungsstege 10 über die gesamte Breite des Heizelementes 7 miteinander verbunden. Diese Verbindungsstege 10 sind ebenfalls einstückig mit den Streifen 8 aus dem folienartigen Grundkörper ausgeschnitten.The individual film strips 8 are connected to one another via connecting webs 10 over the entire width of the heating element 7. These connecting webs 10 are also cut in one piece with the strips 8 of the film-like body.

Diese Verbindungsstege 10 müssen im Verhältnis zum endgültigen Folienstreifen sehr schmal sein. Im vorliegenden Ausführungsbeispiel, bei welchem die Streifen etwa eine Breite von 5 mm aufweisen, haben diese Verbindungsstege zum Beispiel eine Breite von etwa 0,2 mm bis 1,0 mm.These connecting webs 10 must be very narrow in relation to the final film strip. In the present embodiment, in which the strips have a width of about 5 mm, for example, these connecting webs have a width of about 0.2 mm to 1.0 mm.

Beidseits des Heizelementes sind Haltestege 11 vorgesehen. Diese Haltestege 11 werden ebenfalls einstückig mit den Folienstreifen aus dem folienartigen Grundkörper ausgeschnitten, sie sind über weitere Verbindungsstege 12, die den Verbindungsstegen 10 entsprechen, mit den Verbindungsstücken 9 verbunden. Diese Haltestege 11 erstrecken sich im Wesentlichen über die gesamte Breite des Heizelementes 7.On both sides of the heating element holding webs 11 are provided. These retaining webs 11 are also cut in one piece with the foil strips from the film-like base body, they are connected via further connecting webs 12 which correspond to the connecting webs 10, with the connecting pieces 9. These holding webs 11 extend substantially over the entire width of the heating element 7.

Dieses derartige aus einem folienartigen Grundkörper ausgeschnittene Gebilde mit den Folienstreifen 8, den Verbindungsstücken 9, den Verbindungsstegen 10, den Haltestegen 11 und den weiteren Verbindungsstegen 12, die ein Stück bilden, wird eine Heizelementstruktur erhalten, die trotz der sehr geringen Dicke eine stabile Grundform bilden.This such cut out of a sheet-like body with the film strips 8, the connecting pieces 9, the connecting webs 10, the retaining webs 11 and the other connecting webs 12, which form a piece, a heating element structure is obtained, which form a stable basic shape despite the very small thickness ,

Der Ausschneidevorgang kann in geeigneter Weise ausgeführt werden, eine Möglichkeit ist beispielsweise das Laserschneiden, als weitere Möglichkeit bietet sich das Ätzverfahren an, möglich wäre auch ein Ausstanzen, wobei die entsprechenden Werkzeuge eine äusserst hohe Genauigkeit aufweisen müssten, selbstverständlich sind aber auch andere geeignete Verfahren möglich.The cutting process can be carried out in a suitable manner, one possibility is, for example, the laser cutting, as a further possibility is the etching process, would also be possible punching, the corresponding tools an extremely high Accuracy should have, of course, but other suitable methods are possible.

Wie aus Fig. 3 ersichtlich ist, wird der aus dem folienartigen Grundkörper ausgeschnittene Teil im Bereich der Folienstreifen 8 zickzackförmig gefaltet, was beispielsweise durch zwei mit entsprechenden zickzackförmigen Oberflächen ausgestatteten Walzen, die gegeneinander angestellt sind und zwischen welchen die Folienstreifen 8 gewalzt werden, erreichbar ist.How out Fig. 3 it can be seen, the cut out of the film-like body part in the film strip 8 is folded zigzag, which, for example, by two equipped with corresponding zigzag surfaces rollers that are employed against each other and between which the film strips 8 are rolled, can be reached.

Dieses derart vorbereitete Element kann dann auf einen Isolierkörper aufgelegt werden, wobei das Element über die Haltestege 11 in optimaler Weise gehalten werden kann. Da die Folienstreifen 8 zickzack-förmig gefaltet sind, können die beiden Haltestege 11 etwas auseinandergezogen und an die Länge des Isolierkörpers angepasst werden. Danach kann das Element auf dem Isolierkörper fixiert werden, was durch Klammern erfolgt, welche in den Isolierkörper eingedrückt werden und welche die Folienstreifen 8 auf dem Isolierkörper halten.This element prepared in this way can then be placed on an insulating body, wherein the element can be held in an optimum manner via the retaining webs 11. Since the film strips 8 are folded in a zigzag shape, the two holding webs 11 can be slightly pulled apart and adapted to the length of the insulating body. Thereafter, the element can be fixed on the insulating body, which is done by brackets, which are pressed into the insulating body and which hold the film strips 8 on the insulating body.

Nach dem Aufsetzen des Heizelementes 7 auf dem Isolierkörper können die weiteren Verbindungsstege 12 durchgeschnitten werden, die Haltestege 11 und die weiteren Verbindungsstege 12 werden somit vom Heizelement 7 getrennt.After placing the heating element 7 on the insulating body, the further connecting webs 12 can be cut through, the retaining webs 11 and the further connecting webs 12 are thus separated from the heating element 7.

Fig. 4 zeigt das entsprechende Heizelement 7, von welchem die Haltestege 11 abgeschnitten sind. Dieses Heizelement 7 liegt in dieser Weise auf dem Isolationskörper des entstehenden Infrarotstrahlers. Fig. 4 shows the corresponding heating element 7, from which the holding webs 11 are cut off. This heating element 7 is in this way on the insulating body of the resulting infrared radiator.

Aus Fig. 5 ist ein derartiger Infrarotstrahler 13 ersichtlich. Dieser Infrarotstrahler 13 besteht aus einem Gehäuse 14, in welches der Isolierkörper 15 eingesetzt und befestigt ist. Mittels Klammern 18 ist das Heizelement 7 an diesem Isolierkörper 15 befestigt. Die Verbindungsstege 10, wie sie in Fig. 4 dargestellt sind, sind nach der Montage in den Infrarotstrahler 13 noch vorhanden. Dieser Infrarotstrahler 13 kann nun an eine Stromquelle angeschlossen werden, beim ersten Durchlauf von Strom durch das Heizelement 7 schmelzen die Verbindungsstege 10, dadurch erhält man einen durchgehenden Heizleiter, der keine Querverbindungen mehr aufweist, wie dies aus Fig. 5 ersichtlich ist.Out Fig. 5 If such an infrared radiator 13 can be seen. This infrared radiator 13 consists of a housing 14, in which the insulating body 15 is inserted and fixed. By means of brackets 18, the heating element 7 is attached to this insulating body 15. The connecting webs 10, as in Fig. 4 are shown are after installation in the infrared radiator 13 still present. This infrared radiator 13 can now be connected to a power source, the first passage of electricity through the heating element 7 melt the connecting webs 10, thereby obtaining a continuous heating conductor, which no longer has any cross connections, like this Fig. 5 is apparent.

Mit einem derartig hergestellten, einstückigen Heizelement, das vorübergehend mit Verbindungsstegen verbunden ist, so dass ein stabiles Element entsteht, das trotz der sehr geringen Materialdicke eine genügend grosse Stabilität aufweist, dass deren Handhabung sehr vereinfacht wird, können mit einem geringen Aufwand Infrarotstrahler hergestellt werden, was geringere Herstellungskosten gegenüber den aus vielen Einzelteilen zusammengefügten Heizelementen zur Folge hat.With such a manufactured, one-piece heating element, which is temporarily connected to connecting webs, so that a stable element is formed, which despite the very small material thickness has a sufficiently high stability, that their handling is greatly simplified, can be produced with little effort infrared radiator, which has lower manufacturing costs compared to the assembled from many items heating elements result.

Claims (9)

  1. Heating element for infrared radiator (13), consisting of a multiplicity of sheet strips (8) disposed substantially parallel next to one another, which strips are made of a resistance material, each strip (8) being connected by an end region (16) to the one end region (17) of the adjacent strip (8) via connectors (9), so that the strips (8) form a sequential conductor, characterised in that the heating element (7) with the strips (8) and the connectors (9) and connecting crosspieces (10) disposed between the strips (8) is cut out in one piece from a sheet-like base portion, which connecting crosspieces (10) connect the strips (8) together transversely to one another.
  2. Heating element for infrared radiator according to claim 1, characterised in that the width of these connecting crosspieces (10) corresponds maximally to about one eighth of the width of the strips (8).
  3. Heating element for infrared radiator according to claim 1 or 2, characterised in that the strips (8) are folded in a zigzag way transversely to the longitudinal direction.
  4. Heating element for infrared radiator according to one of the claims 1 to 3, characterized in that holding crosspieces (11) are provided on the connectors (9) on both sides of the heating element (7).
  5. Heating element for infrared radiator according to claim 4, characterised in that the holding crosspieces (11) extend substantially over the width of the heating element (7).
  6. Heating element for infrared radiator according to claim 4 or 5, characterised in that the holding crosspieces (11) are connected to the connectors (9) via further connecting crosspieces (12).
  7. Heating element for infrared radiator according to one of the claims 1 to 6, characterised in that the heating element (7) in insertable into a body (15) of an infrared radiator (13) and is fixable therein.
  8. Heating element for infrared radiator according to claim 7, characterised in that the holding crosspieces (11) are able to be cut away after insertion into the body (15) of the infrared radiator (13).
  9. Heating element for infrared radiator according to one of the claims 1 to 8, characterised in that the connecting crosspieces (10) between the strips (8) are able to be melted away.
EP13153850.6A 2013-02-04 2013-02-04 Heating element for infrared radiator Active EP2763497B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP13153850.6A EP2763497B1 (en) 2013-02-04 2013-02-04 Heating element for infrared radiator
PL13153850T PL2763497T3 (en) 2013-02-04 2013-02-04 Heating element for infrared radiator
SI201330145T SI2763497T1 (en) 2013-02-04 2013-02-04 Heating element for infrared radiator
ES13153850.6T ES2562906T3 (en) 2013-02-04 2013-02-04 Heating element for infrared radiator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP13153850.6A EP2763497B1 (en) 2013-02-04 2013-02-04 Heating element for infrared radiator

Publications (2)

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EP2763497A1 EP2763497A1 (en) 2014-08-06
EP2763497B1 true EP2763497B1 (en) 2015-12-09

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EP13153850.6A Active EP2763497B1 (en) 2013-02-04 2013-02-04 Heating element for infrared radiator

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EP (1) EP2763497B1 (en)
ES (1) ES2562906T3 (en)
PL (1) PL2763497T3 (en)
SI (1) SI2763497T1 (en)

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DE102020130339A1 (en) 2020-11-17 2022-05-19 Aixtron Se Heating device for a CVD reactor

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4602238A (en) * 1984-01-20 1986-07-22 Vitronics Corporation Infrared panel emitter and method of producing the same
NO308718B1 (en) * 1995-07-21 2000-10-16 Kanstad Teknologi As Efficient, pulsed metallic infrared radiation source
DE19912544B4 (en) * 1999-03-19 2007-01-18 Heraeus Noblelight Gmbh Infrared radiator and method for heating a material to be treated
ITMI20060180A1 (en) * 2006-02-03 2007-08-04 Cedal Equipment S R L RADIANT PANEL IN ANODIZED ALUMINUM WITH STAINLESS STEEL ELECTRIC RESISTANCE

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SI2763497T1 (en) 2016-04-29
ES2562906T3 (en) 2016-03-09
PL2763497T3 (en) 2016-05-31
EP2763497A1 (en) 2014-08-06

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