EP1926347A1 - Electric heating device, in particular for a motor vehicle - Google Patents

Electric heating device, in particular for a motor vehicle Download PDF

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Publication number
EP1926347A1
EP1926347A1 EP06291822A EP06291822A EP1926347A1 EP 1926347 A1 EP1926347 A1 EP 1926347A1 EP 06291822 A EP06291822 A EP 06291822A EP 06291822 A EP06291822 A EP 06291822A EP 1926347 A1 EP1926347 A1 EP 1926347A1
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EP
European Patent Office
Prior art keywords
heating device
insulating element
contact
insulating
contact plates
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
EP06291822A
Other languages
German (de)
French (fr)
Other versions
EP1926347B1 (en
Inventor
Michel Brun
Geoffrey Denny
Gerard Eckerlen
Erwan Gogmos
Pascal Miss
Mathieu Mougey
Nicolas Robin
Christophe Schmittheisler
Stéphane Weingaertner
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.)
Mahle Behr France Rouffach SAS
Original Assignee
Behr France Rouffach SAS
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 Behr France Rouffach SAS filed Critical Behr France Rouffach SAS
Priority to EP06291822.2A priority Critical patent/EP1926347B1/en
Publication of EP1926347A1 publication Critical patent/EP1926347A1/en
Application granted granted Critical
Publication of EP1926347B1 publication Critical patent/EP1926347B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H3/00—Air heaters
    • F24H3/02—Air heaters with forced circulation
    • F24H3/04—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element
    • F24H3/0405—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element using electric energy supply, e.g. the heating medium being a resistive element; Heating by direct contact, i.e. with resistive elements, electrodes and fins being bonded together without additional element in-between
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H3/00—Air heaters
    • F24H3/02—Air heaters with forced circulation
    • F24H3/04—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element
    • F24H3/0405—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element using electric energy supply, e.g. the heating medium being a resistive element; Heating by direct contact, i.e. with resistive elements, electrodes and fins being bonded together without additional element in-between
    • F24H3/0429—For vehicles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H3/00—Air heaters
    • F24H3/02—Air heaters with forced circulation
    • F24H3/04—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element
    • F24H3/0405—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element using electric energy supply, e.g. the heating medium being a resistive element; Heating by direct contact, i.e. with resistive elements, electrodes and fins being bonded together without additional element in-between
    • F24H3/0429—For vehicles
    • F24H3/0435—Structures comprising heat spreading elements in the form of fins
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H3/00—Air heaters
    • F24H3/02—Air heaters with forced circulation
    • F24H3/04—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element
    • F24H3/0405—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element using electric energy supply, e.g. the heating medium being a resistive element; Heating by direct contact, i.e. with resistive elements, electrodes and fins being bonded together without additional element in-between
    • F24H3/0429—For vehicles
    • F24H3/0441—Interfaces between the electrodes of a resistive heating element and the power supply means
    • F24H3/0447—Forms of the electrode terminals, e.g. tongues or clips
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/18—Arrangement or mounting of grates or heating means
    • F24H9/1854—Arrangement or mounting of grates or heating means for air heaters
    • F24H9/1863—Arrangement or mounting of electric heating means
    • F24H9/1872—PTC

Definitions

  • the invention relates to an electrical heating device with PTC elements, in particular for a motor vehicle.
  • a known embodiment of PTC heating devices has strip or cuboid PTC elements, the electrical contacting contacting plates and possibly corrugated ribs to increase the heat transfer surface.
  • the PTC elements between contact plates and / or corrugated ribs are arranged.
  • the air to be heated absorbs the heat emitted by the PTC elements substantially from the expansion of the heat transfer surface provided corrugated fins.
  • the PTC elements may be plastic or ceramic elements.
  • FIG EP 1 522 439 A1 An example of such an embodiment is shown in FIG EP 1 522 439 A1 disclosed.
  • the arranged between the contact plates PTC elements and arranged on the outside of the contact plates corrugated fins are held in an electrically insulating plastic frame.
  • the electrical contacting of the contact sheets can be effected in that the contact plates protrude laterally from the frame and a plug connection is provided, wherein the frame can be designed accordingly.
  • the contact sheets can also be connected within the frame with contact rails, which are contacted from the outside, or an electrical conductor is inserted directly into the frame and connected to the contact bars or contact plates.
  • Such a heating device can still wishes with regard to possible short circuits.
  • an electric heating device in particular for a motor vehicle, having a heat transfer area for transmitting the heat generated to a fluid flowing through the electric heating device, wherein in the heat transfer area a number of arranged between contact plates, electrical heating elements, in particular PTC elements, particularly preferably ceramic -PTC elements or plastic PTC elements, provided, and is arranged between two contact plates in addition to at least one electrical heating element, at least one electrically insulating element.
  • electrical heating elements in particular PTC elements, particularly preferably ceramic -PTC elements or plastic PTC elements, provided, and is arranged between two contact plates in addition to at least one electrical heating element, at least one electrically insulating element.
  • the function of the contact plates can also be taken directly by the heat-transmitting surface enlarging corrugated fins or areas thereof.
  • the insulating element preferably has at most the same dimension as the electrical heating element in the direction of the contact sheets, i. it is at most as thick as an adjacent heating element.
  • the insulating element is preferably glued directly between the contact plates.
  • the insulating element is preferably designed such that the adhesive effect of the adhesive on its surface is at least as good as on the surface of the electrical heating elements, particularly preferably the adhesive effect on the surface of the insulating element is significantly greater than that of the electrical heating elements.
  • this contact surface is preferably formed uneven.
  • the unevenness can be formed by larger and / or smaller structures.
  • the surface may be roughened, provided with regular and / or irregular grooves, channels, wave structures, studded structures, impressions, holes and / or openings.
  • the insulating element is preferably positively and / or non-positively connected to at least one of the contact plates.
  • an additional adhesive may be provided.
  • Combinations are also possible, ie, for example, a contact plate is positively connected to the insulating element, the opposite contact plate is connected by means of an adhesive to the insulating element.
  • the insulating element is preferably formed with arms which laterallyorganizr on a contact plate.
  • a contact engagement of the contact plate is particularly preferably also provided; in particular, this applies to insulating elements arranged at the end of the contact plates.
  • a corresponding embodiment with arms can also be provided on both sides, i. the insulating element is approximately H-shaped.
  • the insulating element may also be provided with at least one pin or at least one other, correspondingly acting projection which is inserted into an opening in the contact plate.
  • protrusions may be provided on both contact surface sides of the insulating element, so that they hold together the two contact sheets with appropriate dimension and material choice or at least support the adhesive joints.
  • connection may also be formed like a clip, i.
  • At the insulating element is at least one spring arm with hooks or similar. formed, which is elastically deformed during assembly short term and in the assembled state, the contact plate engages behind and thereby secures the insulating element.
  • the provision of at least one insulating element at one end of a contact sheet can ensure that no short circuit due to deformation of the contact sheet in the direction of the adjacent, arranged on the other side of the heating elements contact plate due to the interposition of the insulating element.
  • the insulating element can be inexpensively injection molded. It can also be separated piece by piece with needs-based length of a profile.
  • the insulating element is preferably a plastic element, which in particular also brings advantages in terms of weight, but any other insulating materials are possible, such as, for example, ceramics.
  • the insulating element is preferably made of a softer material than the contact plate. This allows, for example, a pressing in openings in the contact plate.
  • the heating device preferably has corrugated fins, which are attached to one side of the contact plates, in particular glued, and increase the heat-transmitting surface.
  • the heating device preferably has an insulating housing or a frame which holds the network of heating elements and possibly corrugated ribs.
  • the frame or housing is preferably made of polyamide, more preferably PA66, and is injection molded. He or it may, with appropriate design, but in particular be designed in several parts, the individual parts can be connected to each other in a known manner, for example. By means Verclipsens or screwing.
  • the insulating elements are made of the same material as the frame or the housing, in particular preferably injection-molded.
  • Heating devices according to the invention can be provided both as a heater in conjunction with a conventional air conditioner or a conventional heater as well as in isolation.
  • the Heating device may be arranged for example in the air duct housing the air conditioner or directly in front of a vent.
  • a heating device 1 serves as a heater in an automotive air conditioner, being arranged in the air flow direction according to a conventional heater.
  • the heating device 1 has a two-part frame (not shown) made of plastic, in this case made of PA66, which is injection-molded.
  • a plurality of the corrugated fins 2 enlarging the heat-transmitting surface, plate-shaped ceramic PTC elements 3, plate-shaped insulating members 4 and contact sheets 5 are arranged.
  • the dimension of the insulating members 4 is corresponding to the dimension of the PTC elements 3 selected, but also different dimensions are possible.
  • the width corresponds at most to that of the contact sheets, in particular somewhat smaller, so that in the assembled state, a small edge is provided on the outside (see FIG. 2).
  • the length of the PTC elements 3 and the insulating elements can be chosen arbitrarily.
  • the thickness d of the elements 3 and 4 preferably corresponds to one another, it being possible for the insulating elements 4 to be designed somewhat thinner in order to be able to provide a thicker adhesive layer than in the case of the PTC elements 3.
  • the average thickness, i. the thickness in consideration of the uneven surface of the insulating members 4 is preferably slightly smaller than the thickness d of the PTC elements 3.
  • a plurality of PTC elements 3 and at least one insulating element 4 are arranged in a row and in each case slightly spaced apart from each other between two contact plates 5.
  • the electrical contacting of the PTC elements via the contact plates 5, of which individual, in this case five, on one side, which projects laterally beyond the network, are connected by means of terminals 6 to the power supply.
  • the current flow through the network is also partially through the corrugated fins 2, as shown in FIG. 1 can be seen.
  • the contact sheets 5, the PTC elements 3, the insulating elements 4 and the corrugated fins 2 are glued together.
  • the contact surface of the insulating elements 4 is roughened so that the adhesive can adhere better and, at least in certain areas, a sufficient but not excessive film thickness can be ensured.
  • An unevenness of the contact surface of the insulating elements can also be achieved by the provision of regular and / or irregular grooves, Channels, wave structures, knobbed structures, embossments, holes, openings or similar be generated.
  • an insulating element 4 is provided in each case in the end region of the contact sheets 5. This can also be formed shorter than the PTC elements 3.
  • the provision of such a spacer element directly in the network has the advantage that deformations of protruding ends of the contact plates 5 can be avoided before installation in the frame. Furthermore, a bending of the contact plates 5 and thus a loosening of the adhesive bond and a possible loss of contact of the PTC elements to the contact plates is prevented by the better fixation of the contact sheets on the insulating elements 4.
  • the insulating elements 4 are arranged inter alia, in which usually no PTC element is arranged, and which serves only to a limited extent the heat transfer, since it is often slightly covered by the frame, therefore take such insulating Elements no place of PTC elements.
  • further insulating elements 4 can be glued in between the contact plates 5 inside the network.
  • the insulating elements may be attached to a contact plate, in particular on two opposite, the element between them receiving contact plates, by means of the bonding described above, as for example. Also indicated in Fig. 4a.
  • a positive and / or frictional connection between contact sheet and insulating element can also be provided, as described below by way of example with reference to FIGS. 4b to 4d. If no adhesive bond is provided, roughening of the surface or similar measures may be dispensed with.
  • the insulating member 4 may be provided with two projections in the form of pins 4a, which project upwardly and downwardly and are received in openings, in the present holes, in the contact plate 5. If the insulating element 4 is formed of a (slightly) elastic material, then the pins can be pressed into the holes and the contact plates can be held together without adhesive by the insulating element 4.
  • the insulating element 4 surrounds a contact plate 5 in an end region.
  • the insulating element can be pushed laterally or 4b by bending the encompassing arms are placed.
  • only one contact plate with the insulating element is firmly connected.
  • the other contact plate can be firmly attached to the insulating element.
  • the contact surface of the insulating element may be roughened or uneven.
  • FIG. 4d shows a variant according to which an end region of a contact plate is tapered from the broad side, so that an insulating element 4 formed in the manner of a clip with two arms 4c can be placed on the tapered end region.
  • the insulating element is H-shaped, i. Arms are up and down. These arms accommodate a tapered according to the variant described above area of the contact plates between them. The arms can also be designed to engage behind the arms 4c.
  • two projections are formed as spring arms with hook-shaped ends, the formed in laterally formed in the contact plate rectangular slots and bear with the ends on the opposite side of the contact plate.
  • the spring arms are elastically deformed for a short time. In the end position, they return to their starting position.
  • an H-shaped configuration of the insulating element is possible, that is, the insulating element holds both adjacent contact plates firmly.
  • plastic PTC elements can also be used as heating elements.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Resistance Heating (AREA)

Abstract

The device (1) has a heat transfer section for transferring heat to a fluid that flows through the device, where a set of positive temperature coefficient (PTC)-units (3) arranged between contact plates (5) is provided in the heat transfer section. An insulating unit (4) is arranged between two contact plates next to the PTC-unit, and is connected with one of the contact plates in a positive and non-positive manner.

Description

Die Erfindung betrifft eine elektrische Heizungsvorrichtung mit PTC-Elementen, insbesondere für ein Kraftfahrzeug.The invention relates to an electrical heating device with PTC elements, in particular for a motor vehicle.

Eine bekannte Ausführungsform von PTC-Heizungsvorrichtungen weist streifen- oder quaderförmige PTC-Elemente, der elektrischen Kontaktierung dienende Kontaktbleche und ggf. Wellrippen zur Vergrößerung der wärmeübertragenden Oberfläche auf. Hierbei sind die PTC-Elemente zwischen Kontaktblechen und/oder Wellrippen angeordnet. Die zu erwärmende Luft nimmt die von den PTC-Elementen abgegebene Wärme im Wesentlichen von den der Vergrößerung der Wärmeübertragungsfläche vorgesehenen Wellrippen auf. Bei den PTC-Elementen kann es sich um Kunststoff- oder Keramik-Elemente handeln.A known embodiment of PTC heating devices has strip or cuboid PTC elements, the electrical contacting contacting plates and possibly corrugated ribs to increase the heat transfer surface. Here, the PTC elements between contact plates and / or corrugated ribs are arranged. The air to be heated absorbs the heat emitted by the PTC elements substantially from the expansion of the heat transfer surface provided corrugated fins. The PTC elements may be plastic or ceramic elements.

Ein Beispiel einer derartigen Ausführungsform ist in der EP 1 522 439 A1 offenbart. Hierbei sind die zwischen Kontaktblechen angeordneten PTC-Elemente sowie auf der Außenseite der Kontaktbleche angeordnete Wellrippen in einem elektrisch isolierenden Kunststoff-Rahmen gehalten.An example of such an embodiment is shown in FIG EP 1 522 439 A1 disclosed. Here, the arranged between the contact plates PTC elements and arranged on the outside of the contact plates corrugated fins are held in an electrically insulating plastic frame.

Die elektrische Kontaktierung der Kontaktbleche kann dadurch erfolgen, dass die Kontaktbleche seitlich aus dem Rahmen ragen und eine Steckverbindung vorgesehen ist, wobei der Rahmen entsprechend ausgebildet sein kann. Die Kontaktbleche können jedoch auch innerhalb des Rahmens mit Kontaktschienen verbunden sein, welche von außen kontaktiert werden, oder ein elektrischer Leiter ist direkt in den Rahmen eingeführt und mit den Kontaktschienen bzw. Kontaktblechen verbunden.The electrical contacting of the contact sheets can be effected in that the contact plates protrude laterally from the frame and a plug connection is provided, wherein the frame can be designed accordingly. However, the contact sheets can also be connected within the frame with contact rails, which are contacted from the outside, or an electrical conductor is inserted directly into the frame and connected to the contact bars or contact plates.

Eine derartige Heizungsvorrichtung lässt noch Wünsche in Hinblick auf mögliche Kurzschlüsse auf.Such a heating device can still wishes with regard to possible short circuits.

Es ist Aufgabe der Erfindung, eine verbesserte elektrische Heizungsvorrichtung mit elektrischen Heizelementen, insbesondere PTC-Elementen, zur Verfügung zu stellen.It is an object of the invention to provide an improved electrical heating device with electrical heating elements, in particular PTC elements available.

Diese Aufgabe wird gelöst durch eine elektrische Heizungsvorrichtung mit den Merkmalen des Anspruchs 1. Vorteilhafte Ausgestaltungen sind Gegenstand der Unteransprüche.This object is achieved by an electric heating device with the features of claim 1. Advantageous embodiments are the subject of the dependent claims.

Erfindungsgemäß ist eine elektrische Heizungsvorrichtung vorgesehen, insbesondere für ein Kraftfahrzeug, mit einem Wärmeübertragungsbereich zur Übertragung der erzeugten Wärme an ein durch die elektrische Heizungsvorrichtung hindurchströmendes Fluid, wobei im Wärmeübertragungsbereich eine Anzahl von zwischen Kontaktblechen angeordneten, elektrischen Heizelementen, insbesondere PTC-Elemente, insbesondere bevorzugt Keramik-PTC-Elemente oder auch Kunststoff-PTC-Elemente, vorgesehen, und zwischen zwei Kontaktblechen neben mindestens einem elektrischen Heizelement mindestens ein elektrisch isolierendes Element angeordnet ist. Die Funktion der Kontaktbleche kann auch direkt durch die wärmeübertragende Fläche vergrößernde Wellrippen oder Bereichen hiervon übernommen werden. Durch das Vorsehen von isolierenden Elementen im Netz selbst können zudem Kurzschlüsse in Folge von Verformungen einzelner Bereiche des Netzes, bspw. von Kontaktblechen, sicher vermieden werden.According to the invention, an electric heating device is provided, in particular for a motor vehicle, having a heat transfer area for transmitting the heat generated to a fluid flowing through the electric heating device, wherein in the heat transfer area a number of arranged between contact plates, electrical heating elements, in particular PTC elements, particularly preferably ceramic -PTC elements or plastic PTC elements, provided, and is arranged between two contact plates in addition to at least one electrical heating element, at least one electrically insulating element. The function of the contact plates can also be taken directly by the heat-transmitting surface enlarging corrugated fins or areas thereof. By providing insulating elements in the network itself can In addition, short circuits as a result of deformations of individual areas of the network, for example. Of contact plates, safely avoided.

Das isolierende Element weist bevorzugt maximal die gleiche Abmessung wie das elektrische Heizelement in Richtung der Kontaktbleche auf, d.h. es ist maximal so dick wie ein benachbartes Heizelement.The insulating element preferably has at most the same dimension as the electrical heating element in the direction of the contact sheets, i. it is at most as thick as an adjacent heating element.

Das isolierende Element ist bevorzugt direkt zwischen den Kontaktblechen eingeklebt. Hierbei ist das isolierende Element vorzugsweise derart ausgebildet, dass die Haftwirkung des Klebers an seiner Oberfläche mindestens so gut wie an der Oberfläche der elektrischen Heizelemente ist, insbesondere bevorzugt ist die Haftwirkung an der Oberfläche des isolierenden Elements deutlich größer als an derjenigen der elektrischen Heizelemente. Durch das Vorsehen von isolierenden Elementen zwischen den Kontaktblechen kann somit auf relativ einfache Weise eine festere Verbindung erzeugt werden, da die isolierenden Elemente besser und einfacher in Bezug auf eine Klebeverbindung vorbereitet werden können als die PTC-Elemente, insbesondere im Falle von Keramik-PTC-Elementen. Somit wird das gesamte, mittels Kleben verbundene Netz stabiler.The insulating element is preferably glued directly between the contact plates. In this case, the insulating element is preferably designed such that the adhesive effect of the adhesive on its surface is at least as good as on the surface of the electrical heating elements, particularly preferably the adhesive effect on the surface of the insulating element is significantly greater than that of the electrical heating elements. By providing insulating elements between the contact plates, a firmer connection can thus be produced in a relatively simple manner, since the insulating elements can be prepared better and easier with respect to an adhesive connection than the PTC elements, in particular in the case of ceramic PTC elements. elements. Thus, the entire network connected by gluing becomes more stable.

Um die Haftwirkung des Klebers an der Kontaktfläche des isolierenden Elements zu vergrößern, ist diese Kontaktfläche bevorzugt uneben ausgebildet. Die Unebenheit kann durch größere und/oder kleinere Strukturen gebildet sein. Insbesondere kann die Fläche aufgerauht, mit regelmäßigen und/oder unregelmäßigen Riefen, Kanälen, Wellenstrukturen, Noppenstrukturen, Einprägungen, Löchern und/oder Öffnungen versehen sein.In order to increase the adhesive effect of the adhesive on the contact surface of the insulating element, this contact surface is preferably formed uneven. The unevenness can be formed by larger and / or smaller structures. In particular, the surface may be roughened, provided with regular and / or irregular grooves, channels, wave structures, studded structures, impressions, holes and / or openings.

Das isolierende Element ist bevorzugt form- und/oder kraftschlüssig mit mindestens einem der Kontaktbleche verbunden. Dabei kann zusätzlich ein Kleber vorgesehen sein. Ebenfalls sind Kombinationen möglich, d.h. beispielsweise ein Kontaktblech ist formschlüssig mit dem isolierenden Element verbunden, das gegenüberliegende Kontaktblech ist mit Hilfe eines Klebers mit dem isolierenden Element verbunden.The insulating element is preferably positively and / or non-positively connected to at least one of the contact plates. In this case, an additional adhesive may be provided. Combinations are also possible, ie, for example, a contact plate is positively connected to the insulating element, the opposite contact plate is connected by means of an adhesive to the insulating element.

Für einen Formschluss ist vorzugsweise das isolierende Element mit Armen ausgebildet, welche seitlich an einem Kontaktblech vorbeiragen. Dabei ist besonders bevorzugt auch ein Hintergreifen des Kontaktblechs vorgesehen, insbesondere gilt dies für endseitig der Kontaktbleche angeordnete isolierende Elemente. Eine entsprechende Ausgestaltung mit Armen kann auch beidseitig vorgesehen sein, d.h. das isolierende Element ist etwa H-förmig ausgebildet.For a positive connection, the insulating element is preferably formed with arms which laterally vorbeir on a contact plate. In this case, a contact engagement of the contact plate is particularly preferably also provided; in particular, this applies to insulating elements arranged at the end of the contact plates. A corresponding embodiment with arms can also be provided on both sides, i. the insulating element is approximately H-shaped.

Alternativ kann das isolierende Element auch mit mindestens einem Zapfen oder mindestens einem anderen, entsprechend wirkenden Vorsprung versehen sein, der in eine Öffnung in das Kontaktblech eingeführt ist. Auch in diesem Fall können Vorsprünge auf beiden Kontaktflächenseiten des isolierenden Elements vorgesehen sein, so dass sie die beiden Kontaktbleche bei entsprechender Abmessungs- und Materialwahl zusammenhalten oder zumindest die Klebeverbindungen unterstützen.Alternatively, the insulating element may also be provided with at least one pin or at least one other, correspondingly acting projection which is inserted into an opening in the contact plate. Also in this case, protrusions may be provided on both contact surface sides of the insulating element, so that they hold together the two contact sheets with appropriate dimension and material choice or at least support the adhesive joints.

Die Verbindung kann auch clipsartig ausgebildet sein, d.h. am isolierenden Element ist mindestens ein Federarm mit Haken o.ä. ausgebildet, der während des Zusammensetzens kurzfristig elastisch verformt wird und im zusammengebauten Zustand das Kontaktblech hintergreift und dadurch am isolierenden Element sichert.The connection may also be formed like a clip, i. At the insulating element is at least one spring arm with hooks or similar. formed, which is elastically deformed during assembly short term and in the assembled state, the contact plate engages behind and thereby secures the insulating element.

Das Vorsehen mindestens eines isolierenden Elements an einem Ende eines Kontaktblechs kann sicherstellen, dass in Folge der Zwischenlage des isolierenden Elements kein Kurzschluss wegen einer Verformung des Kontaktblechs in Richtung des benachbarten, auf der anderen Seite der Heizelemente angeordneten Kontaktblechs erfolgen kann.The provision of at least one insulating element at one end of a contact sheet can ensure that no short circuit due to deformation of the contact sheet in the direction of the adjacent, arranged on the other side of the heating elements contact plate due to the interposition of the insulating element.

Das isolierende Element kann kostengünstig spritzgegossen werden. Ebenfalls kann es stückweise mit bedarfsgerechter Länge von einem Profil abgetrennt werden.The insulating element can be inexpensively injection molded. It can also be separated piece by piece with needs-based length of a profile.

Beim isolierenden Element handelt es sich bevorzugt um ein Kunststoff-Element, welches insbesondere auch in Bezug Gewicht Vorteile mit sich bringt, jedoch sind auch beliebige andere, isolierende Materialien möglich, wie bspw. Keramik.The insulating element is preferably a plastic element, which in particular also brings advantages in terms of weight, but any other insulating materials are possible, such as, for example, ceramics.

Das isolierende Element ist vorzugsweise aus einem weicheren Material gefertigt als das Kontaktblech. Dies ermöglicht beispielsweise ein Einpressen in Öffnungen im Kontaktblech.The insulating element is preferably made of a softer material than the contact plate. This allows, for example, a pressing in openings in the contact plate.

Die Heizungsvorrichtung weist bevorzugt Wellrippen auf, welche auf einer Seite der Kontaktbleche angebracht, insbesondere angeklebt, sind, und die wärmeübertragende Fläche vergrößern.The heating device preferably has corrugated fins, which are attached to one side of the contact plates, in particular glued, and increase the heat-transmitting surface.

Ferner weist die Heizungsvorrichtung vorzugsweise ein isolierendes Gehäuse oder einen Rahmen auf, welche das Netz aus Heizelementen und ggf. Wellrippen hält. Der Rahmen oder das Gehäuse besteht vorzugsweise aus Polyamid, insbesondere bevorzugt aus PA66, und ist spritzgegossen. Er bzw. es kann bei entsprechender Ausgestaltung ein-, aber insbesondere auch mehrteilig ausgebildet sein, wobei die einzelnen Teile auf bekannte Weise miteinander verbunden werden können, bspw. mittels Verclipsens oder Verschraubens. Besonders bevorzugt sind die isolierenden Elemente aus dem gleichen Material wie der Rahmen oder das Gehäuse gefertigt, insbesondere bevorzugt spritzgegossen.Furthermore, the heating device preferably has an insulating housing or a frame which holds the network of heating elements and possibly corrugated ribs. The frame or housing is preferably made of polyamide, more preferably PA66, and is injection molded. He or it may, with appropriate design, but in particular be designed in several parts, the individual parts can be connected to each other in a known manner, for example. By means Verclipsens or screwing. Particularly preferably, the insulating elements are made of the same material as the frame or the housing, in particular preferably injection-molded.

Erfindungsgemäße Heizungsvorrichtungen können sowohl als Zuheizer in Verbindung mit einer herkömmlichen Klimaanlage oder einem herkömmlichen Heizer als auch in Alleinstellung vorgesehen sein. Die Heizungsvorrichtung kann beispielsweise im Luftführungsgehäuse der Klimaanlage oder direkt vor einem Ausströmer angeordnet sein.Heating devices according to the invention can be provided both as a heater in conjunction with a conventional air conditioner or a conventional heater as well as in isolation. The Heating device may be arranged for example in the air duct housing the air conditioner or directly in front of a vent.

Im Folgenden wird die Erfindung anhand eines Ausführungsbeispiels mit Varianten, teilweise unter Bezugnahme auf die Zeichnung, im Einzelnen erläutert. In der Zeichnung zeigen:

Fig. 1
eine schematische Darstellung einer erfindungsgemäßen Heizungsvorrichtung,
Fig. 2
eine perspektivische Ansicht eines Kontaktblechs mit PTC-Element und isolierenden Elementen, wie sie in der Heizungsvorrichtung von Fig. 1 vorgesehen sein können, und
Fig. 3
eine vergrößerte, schematische Seitenansicht eines Ausschnitts einer erfindungsgemäßen Heizungsvorrichtung, und
Fig. 4a-f
verschiedene perspektivische Ansichten, teilweise in Verbindung mit Schnittdarstellungen, unterschiedlicher Anbringungsmöglichkeiten der isolierenden Elemente.
In the following the invention with reference to an embodiment with variants, partially with reference to the drawings, explained in detail. In the drawing show:
Fig. 1
a schematic representation of a heating device according to the invention,
Fig. 2
a perspective view of a contact plate with PTC element and insulating elements, as may be provided in the heating device of Fig. 1, and
Fig. 3
an enlarged schematic side view of a section of a heating device according to the invention, and
Fig. 4a-f
various perspective views, partly in conjunction with sectional views, different attachment options of the insulating elements.

Eine Heizungsvorrichtung 1 gemäß dem Ausführungsbeispiel dient als Zuheizer in einer Kraftfahrzeug-Klimaanlage, wobei sie in Luftströmungsrichtung gesehen nach einem herkömmlichen Heizer angeordnet ist. Die Heizungsvorrichtung 1 weist einen zweiteiligen Rahmen (nicht dargestellt) aus Kunststoff auf, vorliegend aus PA66, der spritzgegossen ist. In dem Rahmen ist eine Mehrzahl von der die wärmeübertragenden Fläche vergrößernden Wellrippen 2, plattenförmig ausgebildeten Keramik-PTC-Elementen 3, plattenförmig ausgebildete isolierende Elemente 4 und Kontaktblechen 5 angeordnet. Gemäß dem vorliegenden Ausführungsbeispiel ist die Abmessung der isolierenden Elemente 4 entsprechend der Abmessung der PTC-Elemente 3 gewählt, jedoch sind auch unterschiedliche Abmessungen möglich.A heating device 1 according to the embodiment serves as a heater in an automotive air conditioner, being arranged in the air flow direction according to a conventional heater. The heating device 1 has a two-part frame (not shown) made of plastic, in this case made of PA66, which is injection-molded. In the frame, a plurality of the corrugated fins 2 enlarging the heat-transmitting surface, plate-shaped ceramic PTC elements 3, plate-shaped insulating members 4 and contact sheets 5 are arranged. According to the present embodiment, the dimension of the insulating members 4 is corresponding to the dimension of the PTC elements 3 selected, but also different dimensions are possible.

Vorzugsweise entspricht die Breite maximal derjenigen der Kontaktbleche, insbesondere etwas geringer ist, so dass im zusammengebauten Zustand außenseitig ein kleiner Rand vorgesehen ist (siehe Fig. 2). Die Länge der PTC-Elemente 3 und der isolierenden Elemente kann beliebig gewählt werden. Die Dicke d der Elemente 3 und 4 entspricht sich bevorzugt, wobei ggf. die isolierenden Elemente 4, um eine dickere Klebeschicht als bei den PTC-Elementen 3 vorsehen zu können, auch etwas dünner ausgebildet sein können. Die mittlere Dicke, d.h. die Dicke unter Berücksichtigung der unebenen Oberfläche, der isolierenden Elemente 4 ist bevorzugt etwas kleiner als die Dicke d der PTC-Elemente 3.Preferably, the width corresponds at most to that of the contact sheets, in particular somewhat smaller, so that in the assembled state, a small edge is provided on the outside (see FIG. 2). The length of the PTC elements 3 and the insulating elements can be chosen arbitrarily. The thickness d of the elements 3 and 4 preferably corresponds to one another, it being possible for the insulating elements 4 to be designed somewhat thinner in order to be able to provide a thicker adhesive layer than in the case of the PTC elements 3. The average thickness, i. the thickness in consideration of the uneven surface of the insulating members 4 is preferably slightly smaller than the thickness d of the PTC elements 3.

Vorliegend sind jeweils mehrere PTC-Elemente 3 und mindestens ein isolierendes Element 4 in einer Reihe und vorliegend jeweils etwas beabstandet voneinander zwischen zwei Kontaktblechen 5 angeordnet. Die elektrische Kontaktierung der PTC-Elemente erfolgt über die Kontaktbleche 5, von denen einzelne, vorliegend fünf, auf einer Seite, die über das Netz seitlich übersteht, mittels Klemmen 6 mit der Stromversorgung verbunden sind. Der Stromfluss durch das Netz erfolgt teilweise auch durch die Wellrippen 2, wie aus Fig. 1 ersichtlich.In the present case, in each case a plurality of PTC elements 3 and at least one insulating element 4 are arranged in a row and in each case slightly spaced apart from each other between two contact plates 5. The electrical contacting of the PTC elements via the contact plates 5, of which individual, in this case five, on one side, which projects laterally beyond the network, are connected by means of terminals 6 to the power supply. The current flow through the network is also partially through the corrugated fins 2, as shown in FIG. 1 can be seen.

Die Kontaktbleche 5, die PTC-Elemente 3, die isolierenden Elemente 4 und die Wellrippen 2 sind miteinander verklebt. Um die Klebeverbindung zu verbessern, ist die Kontaktfläche der isolierenden Elemente 4 aufgerauht, so dass der Kleber besser haften kann und zumindest bereichsweise eine ausreichende, aber nicht zu große Filmdicke gewährleistet werden kann.The contact sheets 5, the PTC elements 3, the insulating elements 4 and the corrugated fins 2 are glued together. In order to improve the adhesive bond, the contact surface of the insulating elements 4 is roughened so that the adhesive can adhere better and, at least in certain areas, a sufficient but not excessive film thickness can be ensured.

Eine Unebenheit der Kontaktfläche der isolierenden Elemente kann auch durch das Vorsehen von regelmäßigen und/oder unregelmäßigen Riefen, Kanälen, Wellenstrukturen, Noppenstrukturen, Einprägungen, Löchern, Öffnungen o.ä. erzeugt werden.An unevenness of the contact surface of the insulating elements can also be achieved by the provision of regular and / or irregular grooves, Channels, wave structures, knobbed structures, embossments, holes, openings or similar be generated.

Um einen Kurzschluss zwischen den Kontaktblechen 5 im Bereich derer Enden zu verhindern, ist, wie in Fig. 3 dargestellt, ein isolierendes Element 4 jeweils im Endbereich der Kontaktbleche 5 vorgesehen. Dieses kann auch kürzer als die PTC-Elemente 3 ausgebildet sein. Das Vorsehen eines derartigen Abstandselements direkt im Netz hat den Vorteil, dass Verformungen überstehender Enden der Kontaktbleche 5 vor dem Einbau in den Rahmen vermieden werden können. Ferner wird durch die bessere Fixierung der Kontaktbleche an den isolierenden Elementen 4 ein Aufbiegen der Kontaktbleche 5 und damit ein Lösen der Klebeverbindung und ein möglicher Kontaktverlust der PTC-Elemente zu den Kontaktblechen verhindert. In diesem äu-ßersten Bereich, in welchem vorliegend die isolierenden Elemente 4 unter anderem angeordnet sind, in welchem üblicherweise kein PTC-Element angeordnet ist, und welcher nur bedingt der Wärmeübertragung dient, da er häufig vom Rahmen leicht verdeckt ist, nehmen daher derartige isolierende Elemente keinen Platz von PTC-Elementen ein. Zur zusätzlichen Stabilisierung und Fixierung können im Inneren des Netzes weitere isolierende Elemente 4 zwischen den Kontaktblechen 5 eingeklebt sein.In order to prevent a short circuit between the contact plates 5 in the region of their ends, as shown in FIG. 3, an insulating element 4 is provided in each case in the end region of the contact sheets 5. This can also be formed shorter than the PTC elements 3. The provision of such a spacer element directly in the network has the advantage that deformations of protruding ends of the contact plates 5 can be avoided before installation in the frame. Furthermore, a bending of the contact plates 5 and thus a loosening of the adhesive bond and a possible loss of contact of the PTC elements to the contact plates is prevented by the better fixation of the contact sheets on the insulating elements 4. In this outer region, in which in the present case the insulating elements 4 are arranged inter alia, in which usually no PTC element is arranged, and which serves only to a limited extent the heat transfer, since it is often slightly covered by the frame, therefore take such insulating Elements no place of PTC elements. For additional stabilization and fixation, further insulating elements 4 can be glued in between the contact plates 5 inside the network.

Die isolierenden Elemente können an einem Kontaktblech, insbesondere an zwei einander gegenüberliegenden, das Element zwischen sich aufnehmenden Kontaktblechen, mittels des zuvor beschriebenen Klebens angebracht sein, wie bspw. auch in Fig. 4a angedeutet. Zusätzlich zum Vorsehen einer Klebeverbindung oder besonders bevorzugt bei entsprechender Ausgestaltung in Alleinstellung kann auch eine formschlüssige und/oder reibschlüssige Verbindung zwischen Kontaktblech und isolierendem Element vorgesehen sein, wie im Folgenden beispielhaft unter Bezugnahme auf die Figuren 4b bis 4d beschrieben. Ist keine Klebeverbindung vorgesehen, so kann auf ein Aufrauhen der Oberfläche oder ähnliche Maßnahmen verzichtet werden.The insulating elements may be attached to a contact plate, in particular on two opposite, the element between them receiving contact plates, by means of the bonding described above, as for example. Also indicated in Fig. 4a. In addition to the provision of an adhesive bond or particularly preferably in the case of a corresponding configuration in isolation, a positive and / or frictional connection between contact sheet and insulating element can also be provided, as described below by way of example with reference to FIGS. 4b to 4d. If no adhesive bond is provided, roughening of the surface or similar measures may be dispensed with.

Wie in Fig. 4b dargestellt, kann das isolierende Element 4 mit zwei Vorsprüngen in Form von Zapfen 4a versehen sein, die nach oben und unten ragen und in Öffnungen, vorliegend Bohrungen, im Kontaktblech 5 aufgenommen sind. Ist das isolierende Element 4 aus einem (leicht) elastischen Material ausgebildet, so können die Zapfen in die Bohrungen eingepresst sein und die Kontaktbleche können auch ohne Klebstoff durch das isolierende Element 4 zusammengehalten werden.As shown in Fig. 4b, the insulating member 4 may be provided with two projections in the form of pins 4a, which project upwardly and downwardly and are received in openings, in the present holes, in the contact plate 5. If the insulating element 4 is formed of a (slightly) elastic material, then the pins can be pressed into the holes and the contact plates can be held together without adhesive by the insulating element 4.

Gemäß einer weiteren, in Fig. 4c dargestellten Variante umgreift das isolierende Element 4 ein Kontaktblech 5 in einem Endbereich. Je nach Ausgestaltung kann das isolierende Element seitlich aufgeschoben oder mittels Aufbiegens der umgreifenden Arme 4b aufgesetzt werden. Im Falle dieser Lösung ist nur ein Kontaktblech mit dem isolierenden Element fest verbunden. Im Falle der Verwendung eines Klebers kann auch das andere Kontaktblech fest am isolierenden Element angebracht werden. Hierfür kann die Kontaktfläche des isolierenden Elements aufgerauht oder uneben ausgebildet sein.According to another variant, shown in FIG. 4c, the insulating element 4 surrounds a contact plate 5 in an end region. Depending on the embodiment, the insulating element can be pushed laterally or 4b by bending the encompassing arms are placed. In the case of this solution, only one contact plate with the insulating element is firmly connected. In the case of using an adhesive and the other contact plate can be firmly attached to the insulating element. For this purpose, the contact surface of the insulating element may be roughened or uneven.

Fig. 4d zeigt eine Variante, gemäß der ein Endbereich eines Kontaktblechs von der Breitseite her verjüngt ausgebildet ist, so dass ein klammerartig mit zwei Armen 4c ausgebildetes isolierendes Element 4 auf den verjüngten Endbereich aufgesetzt werden kann.4d shows a variant according to which an end region of a contact plate is tapered from the broad side, so that an insulating element 4 formed in the manner of a clip with two arms 4c can be placed on the tapered end region.

Gemäß einer nicht in der Zeichnung dargestellten Variante ist das isolierende Element H-förmig ausgebildet, d.h. Arme stehen nach oben und unten ab. Diese Arme nehmen einen entsprechend der zuvor beschriebenen Variante verjüngten Bereich der Kontaktbleche zwischen sich auf. Die Arme können auch entsprechend den Armen 4c hintergreifend ausgebildet sein.According to a variant not shown in the drawing, the insulating element is H-shaped, i. Arms are up and down. These arms accommodate a tapered according to the variant described above area of the contact plates between them. The arms can also be designed to engage behind the arms 4c.

Gemäß einer weiteren, nicht in der Zeichnung dargestellten Variante sind zwei Vorsprünge als Federarme mit hakenförmigen Enden ausgebildet, die in seitlich in dem Kontaktblech ausgebildete rechteckförmige Schlitze ragen und mit den Enden an der gegenüberliegenden Seite des Kontaktblechs anliegen. Für den Zusammenbau werden die Federarme kurzzeitig elastisch verformt. In der Endstellung nehmen sie wieder ihre Ausgangsstellung ein. Auch im Falle der Federarme ist eine H-förmige Ausgestaltung des isolierenden Elements möglich, d.h. das isolierende Element hält beide benachbarten Kontaktbleche fest.According to another variant, not shown in the drawing, two projections are formed as spring arms with hook-shaped ends, the formed in laterally formed in the contact plate rectangular slots and bear with the ends on the opposite side of the contact plate. For assembly, the spring arms are elastically deformed for a short time. In the end position, they return to their starting position. Also in the case of the spring arms, an H-shaped configuration of the insulating element is possible, that is, the insulating element holds both adjacent contact plates firmly.

Obwohl vorstehend ausschließlich Keramik-PTC-Elemente beschrieben sind, können auch Kunststoff-PTC-Elemente als Heizelemente verwendet werden.Although exclusively ceramic PTC elements have been described above, plastic PTC elements can also be used as heating elements.

Claims (14)

Elektrische Heizungsvorrichtung (1), insbesondere für ein Kraftfahrzeug, mit einem Wärmeübertragungsbereich zur Übertragung der erzeugten Wärme an ein durch die elektrische Heizungsvorrichtung hindurchströmendes Fluid, wobei im Wärmeübertragungsbereich eine Anzahl von zwischen Kontaktblechen (5) angeordneten, elektrischen Heizelementen vorgesehen ist, dadurch gekennzeichnet, dass zwischen zwei Kontaktblechen (5) neben mindestens einem elektrischen Heizelement mindestens ein isolierendes Element (4) angeordnet ist.Electric heating device (1), in particular for a motor vehicle, having a heat transfer area for transferring the heat generated to a fluid flowing through the electric heating device, wherein a number of electrical heating elements arranged between contact plates (5) is provided in the heat transfer area, characterized in that between at least one electrical heating element at least one insulating element (4) is arranged between two contact plates (5). Heizungsvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass das isolierende Element maximal die gleiche Abmessung wie das elektrische Heizelement in Richtung der Kontaktbleche hat.Heating device according to claim 1, characterized in that the insulating element has at most the same dimension as the electric heating element in the direction of the contact plates. Heizungsvorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das isolierende Element (4) zwischen den Kontaktblechen (5) eingeklebt ist.Heating device according to claim 1 or 2, characterized in that the insulating element (4) between the contact plates (5) is glued. Heizungsvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das isolierende Element (4) form- und/oder kraftschlüssig mit mindestens einem der Kontaktbleche (5) verbunden ist.Heating device according to one of the preceding claims, characterized in that the insulating element (4) is positively and / or non-positively connected to at least one of the contact plates (5). Heizungsvorrichtung nach Anspruch 4, dadurch gekennzeichnet, dass das isolierende Element (4) Arme (4b; 4c), welche seitlich an einem Kontaktblech (5) vorbeiragen, und/oder mindestens einen Vorsprung (4a) aufweist, der in eine Öffnung in einem Kontaktblech (5) eingeführt ist.Heating device according to claim 4, characterized in that the insulating element (4) arms (4b, 4c), which laterally on a contact plate (5) vorbeiragen, and / or at least one projection (4a) which in an opening in a contact plate (5) is introduced. Heizungsvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass mindestens ein isolierendes Element (4) an einem Ende eines Kontaktblechs (5) angeordnet ist.Heating device according to one of the preceding claims, characterized in that at least one insulating element (4) at one end of a contact plate (5) is arranged. Heizungsvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Kontaktfläche, insbesondere die Klebefläche, des isolierenden Elements (4), mit der es an einem Kontaktblech (5) angeordnet ist, uneben ist.Heating device according to one of the preceding claims, characterized in that the contact surface, in particular the adhesive surface, of the insulating element (4), with which it is arranged on a contact plate (5), is uneven. Heizungsvorrichtung nach Anspruch 7, dadurch gekennzeichnet, dass die unebene Fläche aufgerauht, mit regelmäßigen und/oder unregelmäßigen Riefen, Kanälen, Wellenstrukturen, Noppenstrukturen, Einprägungen, Löchern und/oder Öffnungen versehen ist.Heating device according to claim 7, characterized in that the uneven surface roughened, with regular and / or irregular grooves, channels, wave structures, knobbed structures, embossments, holes and / or openings is provided. Heizungsvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das isolierende Element (4) spritzgegossen ist.Heating device according to one of the preceding claims, characterized in that the insulating element (4) is injection-molded. Heizungsvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das isolierende Element (4) ein Kunststoff-Element ist.Heating device according to one of the preceding claims, characterized in that the insulating element (4) is a plastic element. Heizungsvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das isolierende Element (4) aus einem weicheren Material gefertigt ist als das Kontaktblech (5)Heating device according to one of the preceding claims, characterized in that the insulating element (4) is made of a softer material than the contact plate (5) Heizungsvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das elektrische Heizelement ein PTC-Element (3), insbesondere ein Keramik-PTC-Element, ist.Heating device according to one of the preceding claims, characterized in that the electrical heating element is a PTC element (3), in particular a ceramic PTC element. Heizungsvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Heizungsvorrichtung (1) Wellrippen (2) aufweist, welche auf einer Seite der Kontaktbieche angebracht, insbesondere angeklebt, sind.Heating device according to one of the preceding claims, characterized in that the heating device (1) corrugated ribs (2) which are mounted on one side of the Kontaktbieche, in particular glued, are. Heizungsvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die elektrische Heizungsvorrichtung (1) ein isolierendes Gehäuse oder einen Rahmen aufweist.Heating device according to one of the preceding claims, characterized in that the electric heating device (1) has an insulating housing or a frame.
EP06291822.2A 2006-11-23 2006-11-23 Electric heating device, in particular for a motor vehicle Active EP1926347B1 (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2161515A1 (en) * 2008-09-05 2010-03-10 Behr France Rouffach SAS Heat exchanger
EP2276321A1 (en) * 2009-07-17 2011-01-19 Behr France Rouffach SAS Heat exchanger
WO2013053807A1 (en) * 2011-10-14 2013-04-18 Valeo Systemes Thermiques Insulated heating module for a supplemental heating device
EP2865962A1 (en) * 2013-10-22 2015-04-29 Mahle Behr France Rouffach S.A.S Electric heater
DE102022107554A1 (en) 2022-03-30 2023-10-05 Eberspächer Catem Gmbh & Co. Kg PTC heater and electric heater comprising one

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005049349A1 (en) * 2003-11-18 2005-06-02 Woory Industrial Company, Ltd. Heat rod assembly and pre-heater for vehicles including the same

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005049349A1 (en) * 2003-11-18 2005-06-02 Woory Industrial Company, Ltd. Heat rod assembly and pre-heater for vehicles including the same

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2161515A1 (en) * 2008-09-05 2010-03-10 Behr France Rouffach SAS Heat exchanger
EP2276321A1 (en) * 2009-07-17 2011-01-19 Behr France Rouffach SAS Heat exchanger
EP2276321B1 (en) 2009-07-17 2017-04-05 Mahle Behr France Rouffach S.A.S Heat exchanger
WO2013053807A1 (en) * 2011-10-14 2013-04-18 Valeo Systemes Thermiques Insulated heating module for a supplemental heating device
CN103874890A (en) * 2011-10-14 2014-06-18 法雷奥热***公司 Insulated heating module for a supplemental heating device
EP2865962A1 (en) * 2013-10-22 2015-04-29 Mahle Behr France Rouffach S.A.S Electric heater
US9296276B2 (en) 2013-10-22 2016-03-29 Mahle International Gmbh Electric heater
DE102022107554A1 (en) 2022-03-30 2023-10-05 Eberspächer Catem Gmbh & Co. Kg PTC heater and electric heater comprising one

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