EP1467597A2 - Heating apparatus - Google Patents

Heating apparatus Download PDF

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Publication number
EP1467597A2
EP1467597A2 EP04008391A EP04008391A EP1467597A2 EP 1467597 A2 EP1467597 A2 EP 1467597A2 EP 04008391 A EP04008391 A EP 04008391A EP 04008391 A EP04008391 A EP 04008391A EP 1467597 A2 EP1467597 A2 EP 1467597A2
Authority
EP
European Patent Office
Prior art keywords
conductor
heating
housing
heating elements
contact
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.)
Granted
Application number
EP04008391A
Other languages
German (de)
French (fr)
Other versions
EP1467597B1 (en
EP1467597A3 (en
Inventor
Andreas Hamburger
Werner Fassbinder
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.)
Eichenauer Heizelemente GmbH and Co KG
BorgWarner Ludwigsburg GmbH
Original Assignee
Eichenauer Heizelemente GmbH and Co KG
Beru 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 Eichenauer Heizelemente GmbH and Co KG, Beru AG filed Critical Eichenauer Heizelemente GmbH and Co KG
Publication of EP1467597A2 publication Critical patent/EP1467597A2/en
Publication of EP1467597A3 publication Critical patent/EP1467597A3/en
Application granted granted Critical
Publication of EP1467597B1 publication Critical patent/EP1467597B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • H05B3/42—Heating elements having the shape of rods or tubes non-flexible
    • H05B3/48—Heating elements having the shape of rods or tubes non-flexible heating conductor embedded in insulating material
    • H05B3/50—Heating elements having the shape of rods or tubes non-flexible heating conductor embedded in insulating material heating conductor arranged in metal tubes, the radiating surface having heat-conducting fins
    • 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—Heater elements characterised by the composition or nature of the materials or by the arrangement of the conductor
    • 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—Heater elements characterised by the composition or nature of the materials or by the arrangement of the conductor
    • H05B3/12—Heater 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
    • H05B3/14—Heater 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 the material being non-metallic
    • 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—Heater elements characterised by the composition or nature of the materials or by the arrangement of the conductor
    • H05B3/18—Heater elements characterised by the composition or nature of the materials or by the arrangement of the conductor the conductor being embedded in an insulating material

Definitions

  • the invention relates to a heating device with at least two plate-shaped ceramic heating elements on opposite Flat sides are contacted electrically, whereby at least one flat on at least one side electrical conductor is provided.
  • Generic devices are for example from EP 379 837 A1 or EP 340 550 B1.
  • the electrical heating elements are in an insulating frame, preferably made of plastic, with to which a strip-shaped electrical conductor is firmly connected or is integrated and contacts the heating elements directly.
  • This arrangement is in the first case in a housing from a U-shaped removal part, the U-leg of the other side of the heating elements contacted directly and one insulating strips placed on the conductor. In this case, the pressure is applied to this housing seated slats.
  • the housing consists of an electrically conductive Profile tube into which the contact arrangement made of PTC elements, Conductor and inserted on this insulating strip and the housing is then pressed.
  • From DE 199 33 013 is a heating device with plate-shaped Heating elements known - those in the direction of extension of the heating elements and also the contacting conductor has two separately switchable heating zones. However the heat conductors from two end faces of the device here to contact or a part in each heating zone of the heating elements, whereby the heating density or specific heating power is unnecessarily reduced.
  • the invention is therefore based on the object of the generic type To further develop heating devices so that with optimal specific heating output all heating zones only need to be contacted from one end.
  • the stated object is achieved with a heating device of the type mentioned, which thereby is marked on one side of the heating elements at least two conductors are electrically insulated from one another are arranged, each of the conductors at least is in contact with a heating element.
  • the invention therefore provides that essentially parallel and isolates several electrical strip-shaped from each other electrical conductors are provided on one side are contactable, with the first conductor at least a first heating element or a first group of heating elements leads, one on this or this averted Side of the first conductor parallel to this guided further Conductor to at least one second heating element or a second group of heating elements on this side of the second conductor facing away from this possibly arranged third conductor is continued at least a third heating element or a third Group of heating elements etc. and so each conductor opposite the other heating elements or groups of heating elements is electrically insulated as the first conductor to the second and third heating elements or groups of the same, etc.
  • the contacting of the heating elements through the conductors can be done directly or indirectly. With direct contact is / are the other leader (s) other than that the first conductor is bent towards the heating elements.
  • An indirect one Contacting can be done via at least one electrical conductive spacer between the level of the conductor and the contact surface of the heating element facing this or but several conductive spacers or one spacer and a contact plate.
  • Further preferred configurations of the inventions provide that heating elements, Conductor and possibly spacers are arranged pressed in the housing are, in particular the housing is electrical is conductive and at least one flat side of the Housing in electrical contact with the at least one Flat side facing away from the conductor of at least one heating element stands.
  • FIG. 1 is one of four individual heating devices according to the invention 1 composite heating register R in perspective shown.
  • the individual heaters 1 are connected to one another by cross members 10.
  • Housing 2 of the invention designed as profile tubes Heater 1 and conductor 5.1, 5.2, which are flat sheets are formed and protrude from the housing 2. The exact structure and the interaction with the heating elements is also shown below with reference to FIG. 5 to 7 described.
  • heating register R in the illustrated embodiment create two heating zones (Zone 1 and Zone 2), as shown in Fig. 2, which are separate from each other are switchable, so that either only the zone 1 is heated or only zone 2 or both zones.
  • FIG. 3 shows a plan view of an inventive Heater 1 with the housing 2 and from this outstanding leaders 5.1 and 5.2. An enlarged view the end region of a heating device 1 or Details A of FIG. 2 is shown in FIG. 4.
  • the heating device 1 has a housing 2 on, the material is good heat transfer and preferably is made of metal.
  • the housing 2 can be a tube, preferably a profile tube, with the inner structure 3 of the Device adapted cross section. Upper and lower Surface are preferably towards the inside towards the inside Structure 3 of the device convex (concave to the outside) pressed.
  • the inner structure 3 of the heating device 1 points - in the illustrated embodiment from below seen above - first an insulating strip 4, the on a lower cover surface 2a of the housing 2 inside it rests. From an end face 2c of the housing extends a strip-shaped electrical conductor 5.2 with end 5.2a protruding from housing 2.
  • the conductor 5.2 At a distance from the conductor 5.2 - in the illustrated embodiment above it - are two plate-shaped Ceramic heating elements 6.1 and 6.2 provided with a Flat side 6.1a, 6.2a directly on the upper surface 2b of the housing. On its facing away from the top wall 2b (lower) surface 6.1b becomes the first heating element 6.1 by another strip-shaped electrical conductor 5.1 contacted, with its end 5.1a at the same Side out of the housing 1 is like the electrical Head 5.2. To isolate the two conductors 5.1 and 5.2 and to bridge the distance between them is between them in the area of the heating element 6.1 insulating spacer 7.1 provided.
  • a contact plate 5.3 and a electrically conductive spacer 7.2 is provided in the area of the second heating element 6.2 in the illustrated Embodiment.
  • the End faces of the housing can be potted, whereby how said, the two conductors 5.1 and 5.2 with their ends 5.1a and 5.2a led out of the housing on the end face thereof are.
  • first heating element 6.1 and the second heating element 6.2 from a single end face of the housing 2 and separately heated and heated.
  • a first element 6.1 and a second Heating element 6.2 - as they are only for the sake of clarity are shown in the drawing - can also several first heating elements 6.1 and several second heating elements 6.2 can be provided separately in the same way can be contacted and energized.
  • a single heating element or several corresponding groups of heating elements may be provided, for example on the side of the second facing away from the heating elements 5.2 a third heating conductor on the connection side (at 5.1a, 5.2a) passed inside the housing 2 in an insulated manner is and on the side facing away from the connection side Side with one or more heating elements in electrical conductive contact.
  • Both the conductor 5.1 and the contact plate 5.3 are held in a middle free space of a frame 8, wherein in particular, the conductors are injected into the frame 8, for example or can be overmolded by this and the Frame 8 the conductor 5.1 and the contact plate 5.3 in a vertical Direction towered over to their flat sides and in such a way also the heating elements 6.1 and 6.2 as well as spacers 7.1 and 7.2 includes and positioned.
  • the further conductor 5.2 can also be in such a frame be framed.
  • the structure of the heating devices 1 of Figures 6 and 7 is basically similar and in the area of the first heating element 6.1 identical to the structure of the radiator in FIG. 5. 6 differs from that 5 that the second conductor 5.2 in the area of the second heating element 6.2 to the heating element 6.2 is bent so that only one spacer 7.2 ' between the cranked area 5.2b of the second heating conductor 5.2 and the insulating strip 4 must be provided, the spacer 7.2 'being conductive or non-conductive can, preferably non-conductive.
  • the spacer 7.2 'with the insulating strip 4 also a structural one Form unit and from one piece, for example from sprayed Ceramics. It is advantageous here a further reduction in the number of parts.
  • the contact plate is 5.3 and the electrically conductive spacer 7.2 from FIG. 5 through a one-piece electrically conductive spacer 7.2 "replaced, which is also injected into the holding frame 8 can be.
  • This resulting configuration is particularly preferred as it has the benefits of a reduction of single parts with a simple realization united in manufacturing.

Abstract

First (5.1) and second (5.2) conductors are insulated electrically from each other and fit on one side of heating elements. Each conductor maintains direct or indirect contact with heating elements. The second conductor maintains contact with a heating element by means of an electrically conductive spacer and a contact plate. An independent claim is also included for a method for producing a heating device.

Description

Die Erfindung betrifft eine Heizvorrichtung mit mindestens zwei plattenförmigen Keramik-Heizelementen, die auf gegenüberliegenden Flachseiten elektrisch kontaktiert werden, wobei auf mindestens einer Seite mindestens ein flacher elektrischer Leiter vorgesehen ist.The invention relates to a heating device with at least two plate-shaped ceramic heating elements on opposite Flat sides are contacted electrically, whereby at least one flat on at least one side electrical conductor is provided.

Gattungsgemäße Vorrichtungen sind beispielsweise aus der EP 379 837 A1 oder auch der EP 340 550 B1 bekannt.Generic devices are for example from EP 379 837 A1 or EP 340 550 B1.

In beiden Fällen liegen die elektrischen Heizelemente in einem isolierenden Rahmen, vorzugsweise aus Kunststoff, mit dem fest ein streifenförmiger elektrischer Leiter verbunden oder integriert ist und die Heizelemente direkt kontaktiert. Diese Anordnung ist im ersten Fall in einem Gehäuse aus einem U-förmigen Entnahmeteil, dessen U-Schenkel die andere Seite der Heizelemente direkt kontaktiert und einem auf dem Leiter aufgelegten Isolierstreifen gebildet. In diesem Falle erfolgt das Anpressen mittels auf diesem Gehäuse aufsitzenden Lamellen. Bei der zweitgenannten Druckschrift besteht das Gehäuse aus einem elektrisch leitenden Profilrohr, in das die Kontaktanordnung aus PTC-Elementen, Leiter und auf diesen aufgelegten Isolierstreifen eingelegt und das Gehäuse anschließend verpresst ist. Bei den genannten gattungsgemäßen Heizvorrichtungen können sämtliche Heizelemente nur gemeinsam beaufschlagt werden.In both cases, the electrical heating elements are in an insulating frame, preferably made of plastic, with to which a strip-shaped electrical conductor is firmly connected or is integrated and contacts the heating elements directly. This arrangement is in the first case in a housing from a U-shaped removal part, the U-leg of the other side of the heating elements contacted directly and one insulating strips placed on the conductor. In In this case, the pressure is applied to this housing seated slats. In the second mentioned publication the housing consists of an electrically conductive Profile tube into which the contact arrangement made of PTC elements, Conductor and inserted on this insulating strip and the housing is then pressed. With the above Generic heaters can all Heating elements can only be applied together.

Aus der DE 199 33 013 ist eine Heizvorrichtung mit plattenförmigen Heizelementen bekannt - die in Erstreckungsrichtung der Heizelemente und auch der kontaktierenden Leiter zwei separat schaltbare Heizzonen aufweist. Allerdings sind hierzu die Heizleiter von zwei Stirnseiten der Vorrichtung her zu Kontaktieren oder aber in jeder Heizzone ein Teil der Heizelemente fortzulassen, wodurch die Heizdichte bzw. spezifische Heizleistung in unnötiger Weise reduziert wird.From DE 199 33 013 is a heating device with plate-shaped Heating elements known - those in the direction of extension of the heating elements and also the contacting conductor has two separately switchable heating zones. However the heat conductors from two end faces of the device here to contact or a part in each heating zone of the heating elements, whereby the heating density or specific heating power is unnecessarily reduced.

Der Erfindung liegt daher die Aufgabe zugrunde, gattungsgemäße Heizvorrichtungen dahingehend weiterzubilden, so dass bei optimaler spezifischer Heizleistung sämtliche Heizzonen lediglich von einer Stirnseite kontaktiert werden müssen.The invention is therefore based on the object of the generic type To further develop heating devices so that with optimal specific heating output all heating zones only need to be contacted from one end.

Erfindungsgemäß wird die genannte Aufgabe mit einer Heizvorrichtung der eingangs genannten Art gelöst, welche dadurch gekennzeichnet ist, dass auf einer Seite der Heizelemente mindestens zwei Leiter elektrisch voneinander isoliert angeordnet sind, wobei jeder der Leiter mindestens mit einem Heizelement in Kontakt steht.According to the invention, the stated object is achieved with a heating device of the type mentioned, which thereby is marked on one side of the heating elements at least two conductors are electrically insulated from one another are arranged, each of the conductors at least is in contact with a heating element.

Die Erfindung sieht also vor, dass im wesentlichen parallel und isoliert voneinander mehrere elektrische streifenförmige elektrische Leiter vorgesehen werden, die an einer Seite kontaktierbar sind, wobei der erste Leiter zu mindestens einem ersten Heizelement oder einer ersten Gruppe von Heizelementen führt, ein auf diesem bzw. dieser abgewandten Seite des ersten Leiters parallel zu diesem geführter weiterer Leiter zu mindestens einem zweiten Heizelement oder einer zweiten Gruppe von Heizelementen geführt ist, ein aufdiesem bzw. diesen abgewandten Seite des zweiten Leiters eventuell angeordneter dritter Leiter weitergeführt ist zu mindestens einem dritten Heizelement oder einer dritten Gruppe von Heizelementen usw. und so jeder Leiter gegenüber den weiteren Heizelementen oder Gruppen von Heizelementen elektrisch isoliert ist, als der erste Leiter zu den zweiten und dritten Heizelementen bzw. Gruppen derselben usw.The invention therefore provides that essentially parallel and isolates several electrical strip-shaped from each other electrical conductors are provided on one side are contactable, with the first conductor at least a first heating element or a first group of heating elements leads, one on this or this averted Side of the first conductor parallel to this guided further Conductor to at least one second heating element or a second group of heating elements on this side of the second conductor facing away from this possibly arranged third conductor is continued at least a third heating element or a third Group of heating elements etc. and so each conductor opposite the other heating elements or groups of heating elements is electrically insulated as the first conductor to the second and third heating elements or groups of the same, etc.

Die Kontaktierung der Heizelemente durch die Leiter kann dabei direkt oder indirekt erfolgen. Bei direkter Kontaktierung ist/sind der oder die weiteren Leiter außer dem ersten Leiter zu den Heizelementen hin abgekröpft. Eine indirekte Kontaktierung kann über mindestens ein elektrisch leitendes Distanzstück zwischen der Ebene des Leiters und der diesem zugewandten Kontaktfläche des Heizelements oder aber mehrere leitende Distanzstücke bzw. ein Distanzstück und eine Kontaktplatte erfolgen. Weitere bevorzugte Ausgestaltungen der Erfindungen sehen vor, dass Heizelemente, Leiter und ggf. Distanzstücke in dem Gehäuse verpresst angeordnet sind, wobei insbesondere das Gehäuse elektrisch leitend ausgebildet ist und zumindest eine Flachseite des Gehäuses in elektrischem Kontakt mit der dem mindestens einen Leiter abgewandten Flachseite mindestens eines Heizelements steht.The contacting of the heating elements through the conductors can be done directly or indirectly. With direct contact is / are the other leader (s) other than that the first conductor is bent towards the heating elements. An indirect one Contacting can be done via at least one electrical conductive spacer between the level of the conductor and the contact surface of the heating element facing this or but several conductive spacers or one spacer and a contact plate. Further preferred configurations of the inventions provide that heating elements, Conductor and possibly spacers are arranged pressed in the housing are, in particular the housing is electrical is conductive and at least one flat side of the Housing in electrical contact with the at least one Flat side facing away from the conductor of at least one heating element stands.

Weitere Vorteile und Merkmale der Erfindung ergeben sich aus den Ansprüchen und aus der nachfolgenden Beschreibung, in der Ausführungsbeispiele der Erfindung unter Bezugnahme auf die Zeichnungen. im einzelnen erläutert sind. Dabei zeigt :

Fig. 1
eine perspektivische Darstellung eines Heizregisters mit erfindungsgemäßen Heizvorrichtungen;
Fig. 2
in Seitenansicht die Darstellung zweier erfindungsgemäß erzielbarer Heizzonen des Heizregisters der Fig. 1;
Fig. 3
eine Seitenansicht einer erfindungsgemäßen Heizvorrichtung;
Fig. 4
eine vergrößerte Darstellung des Anschlußdetails einer erfindungsgemäßen Vorrichtung;
Fig. 5
einen Längsschnitt durch eine erste Ausführungsform der erfindungsgemäßen Heizvorrichtung;
Fig. 6
einen Längsschnitt durch eine andere Ausführungsform der erfindungsgemäßen Heizvorrichtung; und
Fig. 7
einen Längsschnitt durch eine dritte Ausführungsform der erfindungsgemäßen Heizvorrichtung.
Further advantages and features of the invention emerge from the claims and from the following description, in the exemplary embodiments of the invention with reference to the drawings. are explained in detail. It shows:
Fig. 1
a perspective view of a heating register with heating devices according to the invention;
Fig. 2
in side view the representation of two heating zones according to the invention of the heating register of Fig. 1;
Fig. 3
a side view of a heating device according to the invention;
Fig. 4
an enlarged view of the connection details of a device according to the invention;
Fig. 5
a longitudinal section through a first embodiment of the heating device according to the invention;
Fig. 6
a longitudinal section through another embodiment of the heating device according to the invention; and
Fig. 7
a longitudinal section through a third embodiment of the heating device according to the invention.

In der Fig. 1 ist ein aus vier erfindungsgemäßen Einzel-Heizvorrichtungen 1 zusammengesetztes Heizregister R perspektivisch dargestellt. Die Einzel-Heizvorrichtungen 1 sind durch Querträger 10 miteinander verbunden. Neben Heizelementen sowie Halte- und Isolierelementen, die in den Fig. 5 bis 7 dargestellt und erläutert sind, finden sich als Profilrohre ausgebildete Gehäuse 2 der erfindungsgemäßen Heizvorrichtung 1 sowie Leiter 5.1, 5.2, die als Flachbleche ausgebildet sind und aus dem Gehäuse 2 herausragen. Der genaue Aufbau und das Zusammenwirken mit den Heizelementen ist ebenfalls weiter unten unter Bezug auf die Fig. 5 bis 7 beschrieben. 1 is one of four individual heating devices according to the invention 1 composite heating register R in perspective shown. The individual heaters 1 are connected to one another by cross members 10. In addition to heating elements as well as holding and insulating elements, which in the 5 to 7 are shown and explained can be found Housing 2 of the invention designed as profile tubes Heater 1 and conductor 5.1, 5.2, which are flat sheets are formed and protrude from the housing 2. The exact structure and the interaction with the heating elements is also shown below with reference to FIG. 5 to 7 described.

Durch die in den Fig. 5 bis 7 detaillierter dargestellte und unter Bezug auf diese Figuren erläuterte Ausgestaltung lassen sich bei einem aus erfindungsgemäßen Heizvorrichtungen 1 gebildeten Heizregister R in der dargestellten Ausführungsform zwei Heizzonen (Zone 1 und Zone 2) schaffen, wie sie in der Fig. 2 dargestellt sind, die getrennt voneinander schaltbar sind, so dass also entweder nur die Zone 1 beheizt wird oder nur die Zone 2 oder aber beide Zonen.5 to 7 shown in more detail and configuration explained with reference to these figures can be in one of the heaters according to the invention 1 formed heating register R in the illustrated embodiment create two heating zones (Zone 1 and Zone 2), as shown in Fig. 2, which are separate from each other are switchable, so that either only the zone 1 is heated or only zone 2 or both zones.

Die Fig. 3 zeigt eine Draufsicht auf eine erfindungsgemäße Heizvorrichtung 1 mit dem Gehäuse 2 sowie den aus diesem herausragenden Leitern 5.1 und 5.2. Eine vergrößerte Darstellung des Endbereichs einer Heizvorrichtung 1 bzw. des Details A der Fig. 2 ist in der Fig. 4 dargestellt.Fig. 3 shows a plan view of an inventive Heater 1 with the housing 2 and from this outstanding leaders 5.1 and 5.2. An enlarged view the end region of a heating device 1 or Details A of FIG. 2 is shown in FIG. 4.

Die erfindungsgemäße Heizvorrichtung 1 weist ein Gehäuse 2 auf, dessen Material gut wärmeübertragend ist und vorzugsweise aus Metall besteht. Das Gehäuse 2 kann ein Rohr, vorzugsweise ein Profilrohr, mit an den inneren Aufbau 3 der Vorrichtung angepassten Querschnitt sein. Obere und untere Fläche sind vorzugsweise nach innen hin gegen den inneren Aufbau 3 der Vorrichtung konvex (nach außen hin konkav) verpresst.The heating device 1 according to the invention has a housing 2 on, the material is good heat transfer and preferably is made of metal. The housing 2 can be a tube, preferably a profile tube, with the inner structure 3 of the Device adapted cross section. Upper and lower Surface are preferably towards the inside towards the inside Structure 3 of the device convex (concave to the outside) pressed.

Der innere Aufbau 3 der erfindungsgemäßen Heizvorrichtung 1 weist - im dargestellten Ausführungsbeispiel von unten nach oben gesehen - zunächst einen Isolierstreifen 4 auf, der auf einer unteren Deckfläche 2a des Gehäuses 2 innerhalb desselben aufliegt. Von einer Stirnseite 2c des Gehäuses erstreckt sich ein streifenförmiger elektrischer Leiter 5.2 mit aus dem Gehäuse 2 herausragendem Ende 5.2a.The inner structure 3 of the heating device 1 according to the invention points - in the illustrated embodiment from below seen above - first an insulating strip 4, the on a lower cover surface 2a of the housing 2 inside it rests. From an end face 2c of the housing extends a strip-shaped electrical conductor 5.2 with end 5.2a protruding from housing 2.

Mit Abstand zu dem Leiter 5.2 - im dargestellten Ausführungsbeispiel oberhalb desselben - sind zwei plattenförmige keramische Heizelemente 6.1 und 6.2 vorgesehen, die mit einer Flachseite 6.1a, 6.2a direkt an der oberen Deckfläche 2b des Gehäuses anliegen. Auf seiner der Deckwand 2b abgewandten (unteren) Fläche 6.1b wird das ersten Heizelement 6.1 durch einen weiteren streifenförmigen elektrischen Leiter 5.1 kontaktiert, der mit seinem Ende 5.1a an der gleichen Seite aus dem Gehäuse 1 herausgeführt ist, wie der elektrische Leiter 5.2. Zur Isolierung der beiden Leiter 5.1 und 5.2 sowie zur Überbrückung des Abstandes zwischen diesen ist zwischen diesen im Bereich des Heizelements 6.1 ein isolierendes Distanzstück 7.1 vorgesehen.At a distance from the conductor 5.2 - in the illustrated embodiment above it - are two plate-shaped Ceramic heating elements 6.1 and 6.2 provided with a Flat side 6.1a, 6.2a directly on the upper surface 2b of the housing. On its facing away from the top wall 2b (lower) surface 6.1b becomes the first heating element 6.1 by another strip-shaped electrical conductor 5.1 contacted, with its end 5.1a at the same Side out of the housing 1 is like the electrical Head 5.2. To isolate the two conductors 5.1 and 5.2 and to bridge the distance between them is between them in the area of the heating element 6.1 insulating spacer 7.1 provided.

Im Bereich des zweiten Heizelements 6.2 sind zwischen diesem und dem zweiten elektrischen Leiter 5.2 im dargestellten Ausführungsbeispiel eine Kontaktplatte 5.3 und ein elektrisch leitendes Distanzstück 7.2 vorgesehen. Die Stirnseiten des Gehäuses können vergossen sein, wobei, wie gesagt, die beiden Leiter 5.1 und 5.2 mit ihren Enden 5.1a und 5.2a an der Stirnseite des Gehäuses aus diesem herausgeführt sind.In the area of the second heating element 6.2 are between the latter and the second electrical conductor 5.2 in the illustrated Embodiment a contact plate 5.3 and a electrically conductive spacer 7.2 is provided. The End faces of the housing can be potted, whereby how said, the two conductors 5.1 and 5.2 with their ends 5.1a and 5.2a led out of the housing on the end face thereof are.

Damit können das erste Heizelement 6.1 und das zweite Heizelement 6.2 von einer einzigen Stirnseite des Gehäuses 2 her separat mit Spannung beaufschlagt und so erhitzt werden. Statt eines ersten Elements 6.1 und eines zweiten Heizelements 6.2 - wie sie der Übersichtlichkeit halber lediglich in der Zeichnung dargestellt sind - können auch mehrere erste Heizelemente 6.1 und mehrere zweite Heizelemente 6.2 vorgesehen sein, die in gleicher Weise separat kontaktiert und mit Spannung beaufschlagt werden können. Es können auch mehr als zwei separat kontaktierte und mit Spannung beaufschlagbare einzelnen Heizelement oder mehrere entsprechende Gruppen von Heizelementen (beispielsweise drei oder mehr) vorgesehen sein, wobei hierzu beispielsweise auf der den Heizelementen abgewandten Seite des zweiten Leiters 5.2 ein dritter Heizleiter an der Anschlussseite (bei 5.1a, 5.2a) isoliert innerhalb des Gehäuses 2 hindurchgeführt ist und auf der der Anschlussseite abgewandten Seite mit ein oder mehreren Heizelementen in elektrisch leitendem Kontakt steht.This allows the first heating element 6.1 and the second heating element 6.2 from a single end face of the housing 2 and separately heated and heated. Instead of a first element 6.1 and a second Heating element 6.2 - as they are only for the sake of clarity are shown in the drawing - can also several first heating elements 6.1 and several second heating elements 6.2 can be provided separately in the same way can be contacted and energized. It can also contact more than two separately and with Voltage can be applied to a single heating element or several corresponding groups of heating elements (for example three or more) may be provided, for example on the side of the second facing away from the heating elements 5.2 a third heating conductor on the connection side (at 5.1a, 5.2a) passed inside the housing 2 in an insulated manner is and on the side facing away from the connection side Side with one or more heating elements in electrical conductive contact.

Sowohl der Leiter 5.1 als auch die Kontaktplatte 5.3 sind in einem mittleren Freiraum eines Rahmens 8 gehalten, wobei insbesondere die Leiter beispielsweise in den Rahmen 8 eingespritzt oder von diesem umgespritzt sein können un d der Rahmen 8 den Leiter 5.1 und die Kontaktplatte 5.3 in senkrechter Richtung zu deren Flachseiten überragt und in derart auch die Heizelemente 6.1 und 6.2 sowie Distanzstücke 7.1 und 7.2 umfasst und positioniert.Both the conductor 5.1 and the contact plate 5.3 are held in a middle free space of a frame 8, wherein in particular, the conductors are injected into the frame 8, for example or can be overmolded by this and the Frame 8 the conductor 5.1 and the contact plate 5.3 in a vertical Direction towered over to their flat sides and in such a way also the heating elements 6.1 and 6.2 as well as spacers 7.1 and 7.2 includes and positioned.

Auch der weitere Leiter 5.2 kann in einen solchen Rahmen eingefasst sein.The further conductor 5.2 can also be in such a frame be framed.

Der Aufbau der Heizvorrichtungen 1 der Figuren 6 und 7 ist grundsätzlich ähnlich und im Bereich des ersten Heizelements 6.1 identisch dem Aufbau des Heizkörpers der Fig. 5. Die Ausgestaltung der Fig. 6 unterscheidet sich von der Ausgestaltung der Fig. 5 dadurch, dass der zweite Leiter 5.2 im Bereich des zweiten Heizelements 6.2 zum Heizelement 6.2 hin abgekröpft ist, so dass nur ein Distanzstück 7.2' zwischen dem abgekröpften Bereich 5.2b des zweiten Heizleiters 5.2 und des Isolierstreifen 4 vorgesehen sein muss, wobei das Distanzstück 7.2' leitend oder nichtleitend sein kann, vorzugsweise nichtleitend. Bevorzugt kann das Distanzstück 7.2' mit dem Isolierstreifen 4 auch eine bauliche Einheit bilden und aus einem Stück, beispielsweise aus gespritzter Keramik, hergestellt sein. Vorteilhaft ist hier eine weitere Reduzierung der Einzelteile. The structure of the heating devices 1 of Figures 6 and 7 is basically similar and in the area of the first heating element 6.1 identical to the structure of the radiator in FIG. 5. 6 differs from that 5 that the second conductor 5.2 in the area of the second heating element 6.2 to the heating element 6.2 is bent so that only one spacer 7.2 ' between the cranked area 5.2b of the second heating conductor 5.2 and the insulating strip 4 must be provided, the spacer 7.2 'being conductive or non-conductive can, preferably non-conductive. Preferably, the spacer 7.2 'with the insulating strip 4 also a structural one Form unit and from one piece, for example from sprayed Ceramics. It is advantageous here a further reduction in the number of parts.

Bei der Ausgestaltung der Fig. 7 ist die Kontaktplatte 5.3 und das elektrisch leitende Distanzstück 7.2 aus Fig. 5 durch ein einstückiges elektrisch leitendes Distanzstück 7.2" ersetzt, das ebenfalls in den Halterahmen 8 eingespritzt sein kann. Diese sich dadurch ergebende Ausgestaltung ist besonders bevorzugt, da sie die Vorteile einer Reduzierung von Einzelteilen mit einer einfachen Realisierung bei der Herstellung vereint. 7, the contact plate is 5.3 and the electrically conductive spacer 7.2 from FIG. 5 through a one-piece electrically conductive spacer 7.2 "replaced, which is also injected into the holding frame 8 can be. This resulting configuration is particularly preferred as it has the benefits of a reduction of single parts with a simple realization united in manufacturing.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Heizvorrichtungheater
22
Gehäusecasing
2a2a
Deckflächecover surface
2b2 B
Deckflächecover surface
2c2c
Stirnseitefront
33
Aufbauconstruction
44
Isolierstreifeninsulating
5.1, 5.25.1, 5.2
Leiterladder
5.1a5.1a
Leiterendeconductor end
5.2a5.2a
Leiterendeconductor end
5.2b5.2b
abgekröpfter Bereich von (5.2)cranked range from (5.2)
5.35.3
Kontaktplattecontact plate
6.16.1
Heizelementheating element
6.26.2
Heizelementheating element
6.1a6.1a
Flachseite flat side
6.2a6.2a
Flachseiteflat side
7.17.1
Distanzstück (isolierend)Spacer (insulating)
7.27.2
Distanzstück (leitend)Spacer (conductive)
7.2'7.2 '
Distanzstück (leitend oder isolierend)Spacer (conductive or insulating)
7.2"7.2 "
Distanzstück (leitend)Spacer (conductive)
88th
Rahmenframe
1010
Trägercarrier
Detaildetail
AA
RR
Heizregisterheater

Claims (15)

Heizvorrichtung mit mindestens zwei plattenförmigen Keramik-Heizelementen (6.1, 6.2), die auf gegenüberliegenden Flachseiten elektrisch kontaktiert werden, wobei auf mindestens einer Seite mindestens ein flacher elektrischer Leiter vorgesehen ist, dadurch gekennzeichnet, dass auf einer Seite der Heizelemente (6.1, 6.2) mindestens zwei Leiter (5.1, 5.2) elektrisch voneinander isoliert angeordnet sind, wobei jeder der Leiter (5.1, 5.2) mindestens mit einem Heizelement (6.1, 6.2) in Kontakt steht.Heating device with at least two plate-shaped ceramic heating elements (6.1, 6.2) which are electrically contacted on opposite flat sides, at least one flat electrical conductor being provided on at least one side, characterized in that at least one side of the heating elements (6.1, 6.2) two conductors (5.1, 5.2) are arranged electrically insulated from one another, each of the conductors (5.1, 5.2) being in contact with at least one heating element (6.1, 6.2). Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass mindestens ein Leiter (5.1, 5.2) direkt mit einem Heizelement (6.1, 6.2) in Kontakt steht.Device according to claim 1, characterized in that at least one conductor (5.1, 5.2) is in direct contact with a heating element (6.1, 6.2). Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass mindestens ein Leiter (5.1, 5.2) indirekt mit einem Heizelement (6.2) in Kontakt steht.Device according to claim 1 or 2, characterized in that at least one conductor (5.1, 5.2) is in indirect contact with a heating element (6.2). Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass mindestens ein Leiter (5.2) über mindestens ein elektrisch leitendes Distanzstück (7.2, 7.2") mit mindestens einem Heizelement (6.2) in Kontakt steht.Device according to claim 3, characterized in that at least one conductor (5.2) is in contact with at least one heating element (6.2) via at least one electrically conductive spacer (7.2, 7.2 "). Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, dass mindestens ein Leiter (5.2) über mindestens ein elektrisch leitendes Distanzstück (7.2) sowie eine Kontaktplatte (5.3) mit einem Heizelement in Kontakt steht.Device according to claim 4, characterized in that at least one conductor (5.2) is in contact with a heating element via at least one electrically conductive spacer (7.2) and a contact plate (5.3). Vorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass mindestens ein elektrischer Leiter (5.1, 5.2) und/oder eine elektrisch leitende Kontaktplatte (5.3) an ihrem Umfang durch mindestens einen isolierenden Rahmen (8) gehalten sind.Device according to one of claims 1 to 5, characterized in that at least one electrical conductor (5.1, 5.2) and / or an electrically conductive contact plate (5.3) are held on their circumference by at least one insulating frame (8). Vorrichtung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass mindestens ein elektrischer Leiter (5.1, 5.2) und/oder ein elektrisch leitendes Distanzstück (7.2, 7.2") an ihrem Umfang durch mindestens einen isolierenden Rahmen (8) gehalten sind.Device according to one of claims 1 to 6, characterized in that at least one electrical conductor (5.1, 5.2) and / or an electrically conductive spacer (7.2, 7.2 ") are held on their circumference by at least one insulating frame (8). Vorrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass zwei Leiter (5.1, 5.2) durch zumindest ein zwischen ihnen angeordnetes isolierendes Distanzstück (7.1) voneinander elektrisch isoliert sind.Device according to one of the preceding claims, characterized in that two conductors (5.1, 5.2) are electrically insulated from one another by at least one insulating spacer (7.1) arranged between them. Vorrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass mindestens ein Leiter (5.2) einen zu mindestens einem Heizelement hin abgekröpften Bereich (5.2b) aufweist. Device according to one of the preceding claims, characterized in that at least one conductor (5.2) has an area (5.2b) bent to at least one heating element. Vorrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die mindestens zwei elektrischen Leiter (5.1, 5.2) lediglich von einer Stirnseite (2c) des Gehäuses (2) her kontaktiert werden.Device according to one of the preceding claims, characterized in that the at least two electrical conductors (5.1, 5.2) are contacted only from one end face (2c) of the housing (2). Vorrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass Heizelemente (6.1, 6.2) und Leiter (5.1, 5.2) sowie ggf. Distanzstücke (7.1, 7.2, 7.2', 7.2") in einem Gehäuse (2) angeordnet sind.Device according to one of the preceding claims, characterized in that heating elements (6.1, 6.2) and conductors (5.1, 5.2) and possibly spacers (7.1, 7.2, 7.2 ', 7.2 ") are arranged in a housing (2). Vorrichtung nach Anspruch 11, dadurch gekennzeichnet, dass Heizelemente (6.1, 6.2), Leiter (5.1, 5.2) und ggf. Distanzstücke (7.1, 7.2, 7.2',7.2" ) in dem Gehäuse (2) verpresst angeordnet sind.Apparatus according to claim 11, characterized in that heating elements (6.1, 6.2), conductors (5.1, 5.2) and possibly spacers (7.1, 7.2, 7.2 ', 7.2 ") are arranged pressed in the housing (2). Vorrichtung nach Anspruch 10 oder 11, dadurch gekennzeichnet, dass das Gehäuse (2) elektrisch leitend ausgebildet ist und zumindest eine Flachseite des Gehäuses (2) in elektrischem Kontakt mit der dem mindestens einen Leiter (5.1, 5.2) abgewandten Flachseite mindestens eines Heizelements (6.1, 6.2) steht.Device according to claim 10 or 11, characterized in that the housing (2) is designed to be electrically conductive and at least one flat side of the housing (2) is in electrical contact with the flat side of at least one heating element (6.1.) Facing away from the at least one conductor (5.1, 5.2) , 6.2) stands. Vorrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass mindestens einer der elektrischen Leiter (5.1, 5.2) und/oder ein elektrisch leitendes Distanzstück (7.2) von einem isolierenden Halterahmen für die Heizelemente (6.1, 6.2) umspritzt ist.Device according to one of the preceding claims, characterized in that at least one of the electrical conductors (5.1, 5.2) and / or an electrically conductive spacer (7.2) is encapsulated by an insulating holding frame for the heating elements (6.1, 6.2). Verfahren zum Herstellen einer Heizvorrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass zunächst mindestens ein elektrischer Leiter (5.1, 5.2) und/oder ein elektrisch leitendes Distanzstück (7.2) mit einem isolierenden Halterahmen für die Heizelemente (6.1, 6.2) umspritzt wird.Method for producing a heating device according to one of the preceding claims, characterized in that at least one electrical conductor (5.1, 5.2) and / or an electrically conductive spacer (7.2) is extrusion-coated with an insulating holding frame for the heating elements (6.1, 6.2).
EP04008391A 2003-04-12 2004-04-07 Heating apparatus Expired - Lifetime EP1467597B1 (en)

Applications Claiming Priority (2)

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DE10316908A DE10316908A1 (en) 2003-04-12 2003-04-12 heater
DE10316908 2003-04-12

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KR (1) KR101019215B1 (en)
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EP2017103B1 (en) * 2007-07-18 2016-05-04 Eberspächer catem GmbH & Co. KG Electric heating device
KR101096286B1 (en) * 2009-08-04 2011-12-20 갑을오토텍(주) PTC rod assembly and pre-heater using the same
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KR101913121B1 (en) 2016-01-28 2018-10-31 자화전자(주) Ptc heater and apparatus for heater using the same
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KR20040088986A (en) 2004-10-20
US20040200830A1 (en) 2004-10-14
KR101019215B1 (en) 2011-03-04
ATE411727T1 (en) 2008-10-15
DE10316908A1 (en) 2004-10-21
EP1467597B1 (en) 2008-10-15
DE502004008244D1 (en) 2008-11-27
EP1467597A3 (en) 2007-09-19

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