EP1467599B1 - Device for the admission of ceramic heating elements and procedure for the production of such - Google Patents

Device for the admission of ceramic heating elements and procedure for the production of such Download PDF

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Publication number
EP1467599B1
EP1467599B1 EP04008392A EP04008392A EP1467599B1 EP 1467599 B1 EP1467599 B1 EP 1467599B1 EP 04008392 A EP04008392 A EP 04008392A EP 04008392 A EP04008392 A EP 04008392A EP 1467599 B1 EP1467599 B1 EP 1467599B1
Authority
EP
European Patent Office
Prior art keywords
contact plate
frame
ceramic
heating elements
plastic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP04008392A
Other languages
German (de)
French (fr)
Other versions
EP1467599A2 (en
EP1467599A3 (en
Inventor
Andreas Hamburger
Werner Fassbinder
Mike Riether
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
Priority claimed from DE20305936U external-priority patent/DE20305936U1/en
Application filed by Eichenauer Heizelemente GmbH and Co KG, Beru AG filed Critical Eichenauer Heizelemente GmbH and Co KG
Publication of EP1467599A2 publication Critical patent/EP1467599A2/en
Publication of EP1467599A3 publication Critical patent/EP1467599A3/en
Application granted granted Critical
Publication of EP1467599B1 publication Critical patent/EP1467599B1/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
    • H05B3/02—Details
    • H05B3/06—Heater elements structurally combined with coupling elements or holders
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B7/00—Barrages or weirs; Layout, construction, methods of, or devices for, making same
    • E02B7/20—Movable barrages; Lock or dry-dock gates
    • E02B7/26—Vertical-lift gates
    • E02B7/36—Elevating mechanisms for vertical-lift gates
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B7/00—Barrages or weirs; Layout, construction, methods of, or devices for, making same
    • E02B7/20—Movable barrages; Lock or dry-dock gates
    • E02B7/26—Vertical-lift gates
    • E02B7/28—Vertical-lift gates with sliding gates
    • 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
    • H05B3/141—Conductive ceramics, e.g. metal oxides, metal carbides, barium titanate, ferrites, zirconia, vitrous compounds
    • 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
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2201/00—Constructional elements; Accessories therefore
    • E05Y2201/20—Brakes; Disengaging means, e.g. clutches; Holders, e.g. locks; Stops; Accessories therefore
    • E05Y2201/214—Disengaging means
    • E05Y2201/216—Clutches
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2201/00—Constructional elements; Accessories therefore
    • E05Y2201/40—Motors; Magnets; Springs; Weights; Accessories therefore
    • E05Y2201/46—Magnets
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2600/00—Mounting or coupling arrangements for elements provided for in this subclass
    • E05Y2600/10—Adjustable or movable
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2600/00—Mounting or coupling arrangements for elements provided for in this subclass
    • E05Y2600/10—Adjustable or movable
    • E05Y2600/30—Adjustable or movable characterised by the type of motion
    • E05Y2600/31—Linear motion
    • E05Y2600/314—Vertical motion
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/40—Application of doors, windows, wings or fittings thereof for gates
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/02—Heaters using heating elements having a positive temperature coefficient

Definitions

  • the invention relates to a device for receiving ceramic heating elements in a heating device according to the preamble of claim 1.
  • the invention further relates to a method for producing a device for receiving ceramic heating elements in a heating device.
  • Such recording devices are used to hold flat cuboidal ceramic heating elements, in particular as a PTC heating element or PTC thermistor heating element to provide a heating device.
  • a device has a frame into which a contact plate is inserted, which is held in a form-fitting manner in the frame by a protruding into an opening of the contact plate nose of the frame; a frictional connection is not provided.
  • the frame has next to longitudinal struts perpendicular to these across the contact plate extending transverse webs, between which on one side of the contact plate, the ceramic heating elements are inserted and are received in the frame, while on the side facing away from the heating elements of the contact plate, an insulating strip is placed.
  • the entire unit is inserted into a profile tube with a rectangular cross-section, which is pressed to produce the entire heater.
  • the FR 2 826 829 shows different arrangements of a sheet metal profile on the bottom of a hollow inside formed U-shaped or cuboid insulating profile, which is designed for receiving heating elements. Only positive connections between the insulating profile and the sheet metal profile are provided. The positive connection can be realized either along the side walls of the insulating profile or by additional projections formed in the central region of the bottom of the insulating profile. In the latter case form-adequate openings are provided on the corresponding areas of the sheet metal profile.
  • the invention has for its object to provide a receiving device for the ceramic heating elements, which simpler to manufacture while avoiding the aforementioned disadvantages with fewer items and thus cheaper and easier to handle in the further handling.
  • the object is achieved by a device of the type mentioned, which has the characterizing feature of claim 1.
  • the contact plate is frictionally held in the frame; it can also be held on the frame.
  • contact plate and frame thus adhere to each other.
  • the contact plate is made of electrically conductive material such as steel or aluminum, the frame of electrically insulating material.
  • the frictional connection between the contact plate and frame is such that it can not be solved by simply pulling apart on the part of a person. Trying to separate the frame from the contact plate will damage or destroy the frame.
  • the receiving device according to the invention is in particular so produced that a contact plate is encapsulated by a frictionally receiving this frame. The frictional connection is given in the direction of the longitudinal extent of the so connected parts.
  • the invention further provides a generic method with the characterizing feature of claim 23.
  • the contact plate is completely enclosed at least in a limited longitudinal portion of the frame of this.
  • the non-positive retention of the contact plate in the frame is in particular in this longitudinal portion of the frame part, in which the contact plate is completely surrounded by the material of the frame, causes.
  • the inventive solution is a permanent connection of the frame and contact plate and therefore a simple Introducing the device together with the other elements, such as ceramic heating elements and Isolierauflage allows in an aluminum profile tube.
  • the handling of individual parts is reduced. Also, the production is easier and cheaper.
  • the contact plate is held over most of its length in longitudinal struts formed grooves of the frame.
  • the contact plate is additionally held in a form-fitting manner in the frame.
  • the frame has transverse webs on one side of the contact plate, between which the heating elements can be inserted, wherein in particular the projections surrounding the heating elements receiving recesses surrounding longitudinal struts and transverse webs of the frame inwardly directed lugs formed for positive retention of the heating elements are.
  • the narrow side projecting bends are formed for frictionally fixing the frame in a profile tube.
  • the contact plate projects beyond the frame at least on one end face, wherein in particular the contact plate projects beyond the frame exactly at one end face. It is provided in particular that the one or more projecting ends of the contact plate are formed as terminal lugs.
  • the frame may be designed so that it only - with protrusion - the narrow edges of the contact plate comprises and on the side of the contact plate on which the heating elements are to be placed, these separating webs includes.
  • the side facing away from the heating elements of the contact plate is provided with an insulating cover in the form of a plate before the frame - with heating elements - is inserted into a rectangular profile tube.
  • the cover plate consists of electrically insulating, but preferably good heat-conducting material, such as ceramic.
  • the frame is completely closed on a side facing away from a receiving side for the heating elements of the contact plate and accordingly the contact plate is provided with a completely covering cover.
  • the frame itself may consist of one of the following materials or a composite of at least two of these materials: plastic, polymer ceramic, sprayed ceramic.
  • polymer ceramics inorganic-organic composite materials which consist of ceramic fillers and a matrix of ceramic polymers.
  • a contact plate on its the receiving side for the heating elements opposite side is covered by a cover layer of polymer ceramic or ceramic, while the rest of the frame made of plastic or polymer ceramic.
  • the holding elements may be formed by an insulating frame, provides an extremely preferred embodiment of this device according to the invention that the holding elements are formed by protruding from the plane of the contact plate protrusions.
  • the projections may be formed like a roll or by pushed out of the plane of the contact plate flags.
  • the insulating layer consists of one of the following materials or a composite of at least two of them: plastic, polymer ceramic, sprayed ceramic.
  • plastic and polymer ceramic can be applied by injection molding by inserting and holding the contact plate in a mold and the remaining cavity of the injection mold adapted to the desired frame is filled by injection molding with plastic or ceramic, the application of ceramic by spraying or spraying, preferably by means of an atmospheric plasma spraying process. It is in particular advantageous to first spray a layer of ceramic on the side facing away from the receiving side for the heating elements of the contact plate, then introduce this composite of contact plate and sprayed insulating ceramic layer in an injection mold and to form the remaining frame in the injection molding of plastic or polymer ceramic. But it can also be provided to surround the contact plate not only on the side facing away from the male heating element, but also in the edge region or completely by spraying ceramic and, if necessary, carry out a subsequent machining.
  • the invention also includes a heating device with an electrically conductive profile tube, a in this receiving ceramic heaters in the recesses between the longitudinal struts and crossbars and Vorsehnung an insulating strip on the side facing away from the heating elements of the contact plate retainer of the above-described embodiments of the invention described above and a heater with several by holding webs parallel and spaced apart held such heaters.
  • the insulating strip on the side facing away from the receiving side of the contact plate can be placed separately depending on the design or positively connected thereto.
  • a contact plate frictionally receiving frame by molding or spraying or over the contact plate is applied to the same.
  • FIGS. 1 to 6 show various representations of a device according to the invention for receiving ceramic heating elements in the context of a heating device according to the invention, as shown in the Fig. 7 is shown.
  • a device for receiving ceramic heating elements briefly receiving device initially has a frame 1, which is preferably made of plastic, but optionally also of polymer ceramic or ceramic and thus formed in each case electrically insulating.
  • a contact plate 2 is injected in plastic or polymer ceramic and is accordingly held frictionally in the frame 1 with high force.
  • the contact plate is sprayed in a suitable manner with this, with optionally still machined reworking were made.
  • frame and contact plate stick together. Pulling out the contact plate 2 from the frame 1 is not possible, unless it were used mechanical aids, in which case, however, the frame would be damaged or destroyed.
  • the frame 1 has over its greatest length only parallel longitudinal webs 1.1, which have inwardly directed longitudinal grooves 1.2.
  • the contact plate 2 is held over most of its length in the grooves 1.2 of the webs 1.1.
  • the contact plate 2 is surrounded on all sides of frame material over each cross section, wherein the force of frictional connection between the frame 1 and contact plate 2 is given substantially in this area.
  • the frame layer lies on the in Fig. 3 visible side of the longitudinal section 1. 3 in the order of also 0.5 mm and on the itself Fig. 3 facing away from Fig. 1 visible side of the order of about 1 mm.
  • arcuate bends 7 are provided laterally in the sequence of the longitudinal webs 7 on the frame 1, by means of which the frame 2 in an aluminum profile tube ( Fig. 7 ) is initially clamped fixable for mounting.
  • the longitudinal webs are 1.1 on in the FIGS. 1 and 5 visible side connected by spaced in'longitudinal direction transverse webs 1.4.
  • inwardly directed lugs 4 serve to receive ceramic heating elements (PTC elements, PTC elements) to be inserted into the recesses which comprise the longitudinal and transverse webs.
  • substantially constant cross-section superior hooks 5 are provided at one end face of the frame 1, which come to the end face of a profile tube in which the holding device is held to form a heater to rest and so the final position during insertion limit the recording device in such a profile tube.
  • the contact plate 2 projects beyond the holding frame with a connecting lug 2.1.
  • a heating device as shown in cross-section in the FIG. 7 is shown, created in such a way by in the recesses 3 between the longitudinal and transverse webs 1.1, 1.4 of the holding frame ceramic heating elements 8 are inserted, which are frictionally held by the lugs 4 in the recesses 3.
  • an insulating strip 9 is held against the contact plate 2. The entire assembly is inserted into a profile tube 10 of rectangular cross-section.
  • FIG. 8 Thus formed single heaters can be used in a heating coil, as shown in the FIG. 8 is shown.
  • a plurality of individual heaters 11 are held at a distance from each other in a parallel clamping manner in apertures of heat-conducting fins 12.
  • a heating device and / or a heating register fluids air, liquids can be heated.
  • Fig. 9 and 10 Embodiments in which the question (bottom) side of the contact plate is directly covered by the frame frictionally and adhesively.
  • Identical parts are provided with the same reference numerals.
  • the frame not only at the edges or narrow sides of the contact plate 2 includes this, but it also integrally covers the said (bottom) side of the contact plate.
  • the cross-sectional representation of Fig. 10 shows a composite frame 1, in this is the bottom or the support side of the heating elements facing away from the contact plate 2 provided with a separate layer.
  • This is preferably a ceramic layer which has been sprayed in the APS process (atmospheric plasma spraying). But in principle it can also be a layer of polymer ceramic.
  • the rest of the frame which has essentially the same contour as the frame Fig. 1 to 5 , is made of plastic or polymer ceramic (if the bottom cover 1.5 made of ceramic) and was then applied by injection molding.
  • Fig. 11 and 12 are those which are particularly suitable for use of ceramic material as an insulating material, although in principle polymer ceramic and optionally also plastic can be used.
  • the frame 1 On the side facing away from the cover layer 1a, the frame 1 in turn webs 1.4, which are formed relatively wide according to the material preferably to be used.
  • the fine structure is simplified and there are, for example, no tabs 5, as in the embodiment of Fig. 9 available.
  • mold formations can in turn be produced by machining post-processing.
  • insulating layer 1a preferably made of ceramic, but optionally also applied from polymer ceramic or plastic.
  • a lateral hold the PTC elements to be laid on the other side of the contact plate 2 against slipping takes place by means of projections 2a, which are formed by characteristics of the contact plate 2, for example in the form of bump-like forms, arcs or pressed lashing elements.
  • projections 2a are formed by characteristics of the contact plate 2, for example in the form of bump-like forms, arcs or pressed lashing elements.

Description

Die Erfindung betrifft eine Vorrichtung zur Aufnahme von Keramik-Heizelementen in einer Heizvorrichtung nach dem Oberbegriff des Anspruchs 1. Die Erfindung betrifft weiterhin ein Verfahren zum Herstellen einer Vorrichtung zur Aufnahme von Keramikheizelementen in einer Heizvorrichtung.The invention relates to a device for receiving ceramic heating elements in a heating device according to the preamble of claim 1. The invention further relates to a method for producing a device for receiving ceramic heating elements in a heating device.

Derartige Aufnahme-Vorrichtungen dienen zur Aufnahme von flachen quaderförmigen Keramik-Heizelementen, insbesondere als PTC-Heizelement bzw. Kaltleiter-Heizelement zur Schaffung einer Heizvorrichtung. Eine derartige Vorrichtung weist einen Rahmen auf, in den eine Kontaktplatte eingefügt ist, die im Rahmen durch eine in einen Durchbruch der Kontaktplatte ragende Nase des Rahmens formschlüssig gehalten wird; ein Kraftschluss ist nicht vorgesehen. Der Rahmen weist neben Längsstreben sich senkrecht zu diesen quer über die Kontaktplatte erstreckende Querstege auf, zwischen denen auf einer Seite der Kontaktplatte die Keramik-Heizelemente eingelegt werden und derart im Rahmen aufgenommen sind, während auf der den Heizelementen abgewandten Seite der Kontaktplatte ein Isolierstreifen aufgelegt wird. Die gesamte Einheit wird in ein Profilrohr mit rechteckigem Querschnitt eingeschoben, welches zur Herstellung der gesamten Heizvorrichtung verpresst wird.Such recording devices are used to hold flat cuboidal ceramic heating elements, in particular as a PTC heating element or PTC thermistor heating element to provide a heating device. Such a device has a frame into which a contact plate is inserted, which is held in a form-fitting manner in the frame by a protruding into an opening of the contact plate nose of the frame; a frictional connection is not provided. The frame has next to longitudinal struts perpendicular to these across the contact plate extending transverse webs, between which on one side of the contact plate, the ceramic heating elements are inserted and are received in the frame, while on the side facing away from the heating elements of the contact plate, an insulating strip is placed. The entire unit is inserted into a profile tube with a rectangular cross-section, which is pressed to produce the entire heater.

Die FR 2 826 829 zeigt unterschiedliche Anordnungen eines Blechprofils auf dem Boden eines innen hohl ausgebildeten U-förmigen bzw. quaderförmigen Isolierprofils, welches zur Aufnahme von Heizelementen ausgebildet ist. Dabei sind lediglich formschlüssige Verbindungen zwischen dem Isolierprofil und dem Blechprofil vorgesehen. Der Formschluss kann entweder entlang der Seitenwände des Isolierprofils oder durch zusätzliche im mittleren Bereich des Bodens des Isolierprofils ausgebildete Auskragungen realisiert sein. Im letzteren Fall sind formadäquate Durchbrüche an den entsprechenden Bereichen des Blechprofils vorzusehen.The FR 2 826 829 shows different arrangements of a sheet metal profile on the bottom of a hollow inside formed U-shaped or cuboid insulating profile, which is designed for receiving heating elements. Only positive connections between the insulating profile and the sheet metal profile are provided. The positive connection can be realized either along the side walls of the insulating profile or by additional projections formed in the central region of the bottom of the insulating profile. In the latter case form-adequate openings are provided on the corresponding areas of the sheet metal profile.

Bei der bekannten Aufnahme-Vorrichtung ist insbesondere nachteilig, dass diese aufwendig und teuer herzustellen ist, da zunächst der Rahmen gespritzt werden muss, in diesen die Kontaktplatte eingefügt und im Rahmen formschlüssig fixiert werden muss. Es sind so bei der Herstellung in mehreren Einzelschritten mehrere Einzelteile zu handhaben.In the known receiving device is particularly disadvantageous that this is expensive and expensive to manufacture, since first the frame must be injected, inserted into this the contact plate and must be fixed in the form-fitting manner. There are so in the production in several steps several items to handle.

Der Erfindung liegt die Aufgabe zugrunde, eine Aufnahmevorrichtung für die Keramik-Heizelemente zu schaffen, welche unter Vermeidung der vorgenannten Nachteile einfacher mit weniger Einzelteilen und damit preiswerter herzustellen und auch in der weiteren Handhabung einfacher zu handhaben ist.The invention has for its object to provide a receiving device for the ceramic heating elements, which simpler to manufacture while avoiding the aforementioned disadvantages with fewer items and thus cheaper and easier to handle in the further handling.

Erfindungsgemäß wird die genannte Aufgabe durch eine Vorrichtung der eingangs genannten Art gelöst, welche das kennzeichnende Merkmal des Anspruchs 1 aufweist. Insbesondere ist die Kontaktplatte kraftschlüssig im Rahmen gehalten; sie kann auch am Rahmen gehalten sein. Auf jeden Fall haften Kontaktplatte und Rahmen also aneinander. Die Kontaktplatte besteht aus elektrisch leitendem Material wie Stahl oder Aluminium, der Rahmen aus elektrisch isolierendem Material. Die Kraftschlussverbindung zwischen Kontaktplatte und Rahmen ist dabei derart, dass sie nicht durch einfaches Auseinanderziehen seitens einer Person gelöst werden kann. Bei dem Versuch einer Trennung von Rahmen und Kontaktplatte wird der Rahmen beschädigt oder zerstört. Die erfindungsgemäße Aufnahme-Vorrichtung ist insbesondere derart herstellbar, dass eine Kontaktplatte von einem diese kraftschlüssig aufnehmenden Rahmen umspritzt wird. Der Kraftschluss ist in Richtung der Längserstreckung der so verbundenen Teile gegeben.According to the invention, the object is achieved by a device of the type mentioned, which has the characterizing feature of claim 1. In particular, the contact plate is frictionally held in the frame; it can also be held on the frame. In any case, contact plate and frame thus adhere to each other. The contact plate is made of electrically conductive material such as steel or aluminum, the frame of electrically insulating material. The frictional connection between the contact plate and frame is such that it can not be solved by simply pulling apart on the part of a person. Trying to separate the frame from the contact plate will damage or destroy the frame. The receiving device according to the invention is in particular so produced that a contact plate is encapsulated by a frictionally receiving this frame. The frictional connection is given in the direction of the longitudinal extent of the so connected parts.

Zur Lösung der genannten Aufgabe sieht die Erfindung weiter ein gattungsgemäßes Verfahren mit dem kennzeichnenden Merkmal des Anspruchs 23 vor.To achieve the above object, the invention further provides a generic method with the characterizing feature of claim 23.

In äußerst bevorzugter Ausgestaltung der erfindungsgemäßen Aufnahme-Vorrichtung ist vorgesehen, dass die Kontaktplatte zumindest in einem begrenzten Längsabschnitt des Rahmens vollständig dicht von diesem umfasst ist. Die kraftschlüssige Halterung der Kontaktplatte im Rahmen wird insbesondere in diesem Längsabschnitt des Rahmenteils, in dem die Kontaktplatte vollständig vom Material des Rahmens umgeben ist, bewirkt. Bei der geringen Stärke der Aufnahme-Vorrichtung und insbesondere des Rahmenteils kann eine allseitige Umgebung der Kontaktplatte, wobei sie dicht umgeben ist, nur durch Einspritzen hergestellt werden, da für die Spritzherstellung des Rahmens ohne eingelegter Kontaktplatte in diesem Bereich ein durchgehender Kanal des Rahmens zu schaffen wäre, was bei der geringen Stärke der Kontaktplatte nicht praktikabel ist.In an extremely preferred embodiment of the receiving device according to the invention it is provided that the contact plate is completely enclosed at least in a limited longitudinal portion of the frame of this. The non-positive retention of the contact plate in the frame is in particular in this longitudinal portion of the frame part, in which the contact plate is completely surrounded by the material of the frame, causes. With the low strength of the receiving device and in particular of the frame part, an all-round environment of the contact plate, wherein it is tightly surrounded, can only be produced by injection, since for the injection molding of the frame without inserted contact plate In this area, a continuous channel of the frame would be created, which is impractical given the small thickness of the contact plate.

Durch die erfindungsgemäße Lösung wird eine dauerhafte Verbindung von Rahmen und Kontaktplatte und daher ein einfaches Einbringen der Vorrichtung zusammen mit den übrigen Elementen, wie Keramik-Heizelementen und Isolierauflage in ein Aluminiumprofilrohr ermöglicht. Die Handhabung von Einzelteilen wird reduziert. Auch ist die Herstellung einfacher und preiswerter.The inventive solution is a permanent connection of the frame and contact plate and therefore a simple Introducing the device together with the other elements, such as ceramic heating elements and Isolierauflage allows in an aluminum profile tube. The handling of individual parts is reduced. Also, the production is easier and cheaper.

In einer bevorzugten Ausgestaltung der erfindungsgemäßen Vorrichtung ist weiterhin vorgesehen, dass die Kontaktplatte über den größten Teil ihrer Länge hin in Längsstreben ausgebildeten Nuten des Rahmens gehalten ist.In a preferred embodiment of the device according to the invention is further provided that the contact plate is held over most of its length in longitudinal struts formed grooves of the frame.

Darüber hinaus kann vorgesehen sein, dass die Kontaktplatte zusätzlich formschlüssig im Rahmen gehalten ist.In addition, it can be provided that the contact plate is additionally held in a form-fitting manner in the frame.

Weitere bevorzugte Ausgestaltungen der Erfindung sehen vor, dass der Rahmen auf einer Seite der Kontaktplatte Querstege aufweist, zwischen denen die Heizelemente einlegbar sind, wobei insbesondere die die Heizelemente aufnehmenden Ausnehmungen umgebenden Längsstreben und Querstegen des Rahmens nach innen hin gerichtete Nasen zur formschlüssigen Halterung der Heizelemente ausgebildet sind.Further preferred embodiments of the invention provide that the frame has transverse webs on one side of the contact plate, between which the heating elements can be inserted, wherein in particular the projections surrounding the heating elements receiving recesses surrounding longitudinal struts and transverse webs of the frame inwardly directed lugs formed for positive retention of the heating elements are.

In Weiterbildung der erfindungsgemäßen Vorrichtung ist vorgesehen, dass am Rahmen die Schmalseite überragende Ausbiegungen zur kraftschlüssigen Festlegung des Rahmens in einem Profilrohr ausgebildet sind.In a further development of the device according to the invention, it is provided that on the frame the narrow side projecting bends are formed for frictionally fixing the frame in a profile tube.

Andere Ausgestaltungen der Erfindung sehen vor, dass die Kontaktplatte den Rahmen zumindest an einer Stirnseite überragt, wobei insbesondere die Kontaktplatte den Rahmen genau an einer Stirnseite überragt. Dabei ist insbesondere vorgesehen, dass das oder die überragenden Enden der Kontaktplatte als Anschlusslaschen ausgebildet sind. Zur axialen Fixierung der erfindungsgemäßen Aufnahmevorrichtung in einem genannten Profilrohr einer Heizvorrichtung sieht die Erfindung weiterhin in bevorzugter Ausgestaltung vor, dass bei über seine Länge hin im wesentlichen Stand der Breite der Rahmen an einer Stirnseite eine Breite überragende Haken aufweist.Other embodiments of the invention provide that the contact plate projects beyond the frame at least on one end face, wherein in particular the contact plate projects beyond the frame exactly at one end face. It is provided in particular that the one or more projecting ends of the contact plate are formed as terminal lugs. For axial fixation of the receiving device according to the invention in a said profile tube of a heater sees the Invention further in a preferred embodiment, that has over its length substantially state of the width of the frame at one end face a width superior hooks.

Zunächst kann der Rahmen so ausgebildet sein, dass er lediglich - mit Überstand - die Schmalkanten der Kontaktplatte umfasst sowie auf der Seite der Kontaktplatte, auf der die Heizelemente aufzulegen sind, diese voneinander trennende Stege beinhaltet. In diesem Falle ist vorgesehen, dass die den Heizelementen abgewandte Seite der Kontaktplatte mit einer Isolierabdeckung in Form einer Platte versehen wird, bevor der Rahmen - mit Heizelementen - in ein Rechteck-Profilrohr eingeschoben wird. Die Abdeckplatte besteht aus elektrisch isolierendem, vorzugsweise aber gut wärmeleitendem Material, wie Keramik.First, the frame may be designed so that it only - with protrusion - the narrow edges of the contact plate comprises and on the side of the contact plate on which the heating elements are to be placed, these separating webs includes. In this case, it is provided that the side facing away from the heating elements of the contact plate is provided with an insulating cover in the form of a plate before the frame - with heating elements - is inserted into a rectangular profile tube. The cover plate consists of electrically insulating, but preferably good heat-conducting material, such as ceramic.

In bevorzugter alternativer Ausgestaltung ist vorgesehen, dass der Rahmen auf einer einer Aufnahmeseite für die Heizelemente abgewandten Seite der Kontaktplatte vollständig geschlossen und demgemäß die Kontaktplatte mit einer sie völlig abdeckenden Abdeckung versehen ist.In a preferred alternative embodiment, it is provided that the frame is completely closed on a side facing away from a receiving side for the heating elements of the contact plate and accordingly the contact plate is provided with a completely covering cover.

Der Rahmen selbst kann aus einem der folgenden Materialien oder einem Verbund mindestens zweier dieser Materialien bestehen: Kunststoff, Polymerkeramik, aufgespritzte Keramik.The frame itself may consist of one of the following materials or a composite of at least two of these materials: plastic, polymer ceramic, sprayed ceramic.

Als Polymerkeramiken werden dabei anorganisch-organische Kompositmaterialien bezeichnet, die aus keramischen Füllstoffen und einer Matrix aus keramischen Polymeren bestehen.As polymer ceramics inorganic-organic composite materials are referred to, which consist of ceramic fillers and a matrix of ceramic polymers.

Im Falle eines Verbundes zweier der vorgenannten Materialien ist dabei insbesondere vorgesehen, dass eine die Kontaktplatte auf ihrer der Aufnahmeseite für die Heizelemente abgewandten Seite durch eine Abdeckschicht aus Polymerkeramik oder Keramik abgedeckt ist, während der Rest des Rahmens aus Kunststoff oder Polymerkeramik besteht.In the case of a composite of two of the aforementioned materials is provided in particular that a contact plate on its the receiving side for the heating elements opposite side is covered by a cover layer of polymer ceramic or ceramic, while the rest of the frame made of plastic or polymer ceramic.

Im Rahmen der Erfindung liegt auch eine Vorrichtung zur Aufnahme von Keramik-Heizelementen in einer Heizvorrichtung mit einer Kontaktplatte und mit Halteelementen zum seitlichen Halten der Heizelemente gegen Verrutschen auf der Kontaktplatte, die gekennzeichnet ist durch zumindest eine auf einer eine Aufnahmeseite für die Heizelemente abgewandten Seite der Kontaktplatte aufgebrachte Isolierschicht. Die Isolierschicht ist dabei kraftschlüssig und damit haftend mit der Halteplatte verbunden. Während auch bei dieser Ausgestaltung grundsätzlich die Halteelemente durch einen isolierenden Rahmen gebildet sein können, sieht eine äußerst bevorzugte Ausgestaltung dieser erfindungsgemäßen Vorrichtung vor, dass die Halteelemente durch aus der Ebene der Kontaktplatte herausgedrückte Vorsprünge gebildet sind. Die Vorsprünge können dabei rollenartig oder durch aus der Ebene der Kontaktplatte herausgedrückte Fahnen gebildet sein.In the context of the invention is also a device for receiving ceramic heating elements in a heating device with a contact plate and with holding elements for laterally holding the heating elements against slipping on the contact plate, which is characterized by at least one side facing away from a receiving side for the heating elements Contact plate applied insulating layer. The insulating layer is positively connected and thus adhering to the support plate. While in this embodiment, in principle, the holding elements may be formed by an insulating frame, provides an extremely preferred embodiment of this device according to the invention that the holding elements are formed by protruding from the plane of the contact plate protrusions. The projections may be formed like a roll or by pushed out of the plane of the contact plate flags.

In weiterer Ausgestaltung ist wiederum vorgesehen, dass die Isolierschicht aus einem der folgenden Materialien oder einem Verbund mindestens zweier derselben besteht: Kunststoff, Polymerkeramik, aufgespritzte Keramik.In a further embodiment, it is again provided that the insulating layer consists of one of the following materials or a composite of at least two of them: plastic, polymer ceramic, sprayed ceramic.

Während Kunststoff und Polymerkeramik im Spritzgussverfahren aufgebracht werden können, indem die Kontaktplatte in eine Form eingeführt und in dieser gehalten und der restliche dem gewünschten Rahmen angepasste Hohlraum der Spritzgussform durch Spritzgießen mit Kunststoff oder Keramik gefüllt wird, erfolgt das Aufbringen von Keramik durch Aufspritzen oder Aufsprühen, vorzugsweise mittels eines atmosphärischen Plasma-Sprühverfahrens. Dabei ist es insbesondere vorteilhaft, zunächst auf die der Aufnahmeseite für die Heizelemente abgewandten Seite der Kontaktplatte eine Schicht Keramik aufzusprühen, anschließend diesen Verbund aus Kontaktplatte und aufgesprühter Isolierschicht aus Keramik in eine Spritzgussform einzubringen und den restlichen Rahmen im Spritzgießverfahren aus Kunststoff oder Polymerkeramik zu bilden. Es kann aber auch vorgesehen sein, die Kontaktplatte nicht nur auf der dem aufzunehmenden Heizelement abgewandten Seite, sondern auch im Randbereich oder vollständig durch Aufsprühen von Keramik zu umgeben und gegebenenfalls eine Nachbearbeitung spanabhebend vorzunehmen.While plastic and polymer ceramic can be applied by injection molding by inserting and holding the contact plate in a mold and the remaining cavity of the injection mold adapted to the desired frame is filled by injection molding with plastic or ceramic, the application of ceramic by spraying or spraying, preferably by means of an atmospheric plasma spraying process. It is in particular advantageous to first spray a layer of ceramic on the side facing away from the receiving side for the heating elements of the contact plate, then introduce this composite of contact plate and sprayed insulating ceramic layer in an injection mold and to form the remaining frame in the injection molding of plastic or polymer ceramic. But it can also be provided to surround the contact plate not only on the side facing away from the male heating element, but also in the edge region or completely by spraying ceramic and, if necessary, carry out a subsequent machining.

Die Erfindung beinhaltet darüber hinaus eine Heizvorrichtung mit einem elektrisch leitenden Profilrohr, einer in dieses unter Aufnahme von Keramikheizelementen in den Ausnehmungen zwischen Längsstreben und Querstegen und unter Vorsehnung eines Isolierstreifens auf die den Heizelementen abgewandte Seite der Kontaktplatte eingeschobenen Haltevorrichtung der vorstehend beschriebenen erfindungsgemäßen Ausgestaltungen sowie ein Heizregister mit mehreren durch Haltestege parallel und mit Abstand zueinander gehaltene derartige Heizvorrichtungen. Der Isolierstreifen auf der der Aufnahmeseite abgewandten Seite der Kontaktplatte kann je nach Ausgestaltung separat aufgelegt oder aber kraftschlüssig mit dieser verbunden sein.The invention also includes a heating device with an electrically conductive profile tube, a in this receiving ceramic heaters in the recesses between the longitudinal struts and crossbars and Vorsehnung an insulating strip on the side facing away from the heating elements of the contact plate retainer of the above-described embodiments of the invention described above and a heater with several by holding webs parallel and spaced apart held such heaters. The insulating strip on the side facing away from the receiving side of the contact plate can be placed separately depending on the design or positively connected thereto.

In bevorzugten Ausgestaltungen des erfindungsgemäßen Verfahrens ist vorgesehen, dass vor dem Aufbringen der Isolierschicht aus der Ebene der Kontaktplatte zu der Heizelemente aufnehmenden Seite derselben Vorsprünge herausgedrückt werden und dass als Halteelemente für die Heizelemente ein die Kontaktplatte kraftschlüssig aufnehmender Rahmen durch Umspritzen oder Auf- bzw. Umsprühen der Kontaktplatte auf dieselbe aufgebracht wird.In preferred embodiments of the method according to the invention, it is provided that prior to the application of the insulating layer from the plane of the contact plate to the heating elements receiving side of the same projections are pushed out and that as holding elements for the heating elements, a contact plate frictionally receiving frame by molding or spraying or over the contact plate is applied to the same.

Weitere Merkmale und Vorteile der Erfindung ergeben sich aus den Ansprüche aus der nachfolgenden Beschreibung, in der ein Ausführungsbeispiel der Erfindung unter Bezugnahme auf die Zeichnung im einzelnen erläutert ist. Dabei zeigt bzw. zeigen:

Fig. 1
eine erste perspektivische Darstellung einer erfindungsgemäßen Aufnahme-Vorrichtung;
Fig. 2
eine andere perspektivische Darstellung der erfindungsgemäßen Halte-Vorrichtung;
Fig. 3
eine Draufsicht auf die in der Fig. 2 sichtbare Seite einer erfindungsgemäßen Aufnahme-Vorrichtung;
Fig. 4
eine Seitenansicht der erfindungsgemäßen Halte-Vorrichtung;
Fig. 5
eine Draufsicht auf die in der Fig. 1 sichtbare Seite der erfindungsgemäßen Aufnahme-Vorrichtung;
Fig. 6
einen Längsschnitt durch eine erfindungsgemäße Aufnahme-Vorrichtung;
Fig. 7
einen Querschnitt durch eine erfindungsgemäße Heizvorrichtung;
Fig. 8
eine perspektivische Darstellung eines Heizregisters aus erfindungsgemäßer Aufnahme-Vorrichtung aufweisenden Heizvorrichtungen gemäß der Fig. 7;
Fig. 9a-d
Ansichten einer anderen Ausführungsform einer erfindungsgemäßen Vorrichtung zur Aufnahme von Keramik-Heizelementen;
Fig. 9e
ein Schnitt entlang A-A der Fig. 9a dieser Ausführungsform;
Fig. 10
eine Schnittdarstellung entsprechend der Fig. 9e für eine weitere Ausgestaltung der erfindungsgemäßen Vorrichtung;
Fig. 11a, b
Ansichten einer weiteren Ausgestaltung der erfindungsgemäßen Vorrichtung; und
Fig. 12a-c
Ansichten einer bevorzugten Ausgestaltung der erfindungsgemäßen Vorrichtung mit einseitiger Keramikbeschichtung.
Further features and advantages of the invention will become apparent from the claims from the following description in which an embodiment of the invention with reference to the drawings is explained in detail. It shows or show:
Fig. 1
a first perspective view of a recording device according to the invention;
Fig. 2
another perspective view of the holding device according to the invention;
Fig. 3
a plan view of the in the Fig. 2 visible side of a receiving device according to the invention;
Fig. 4
a side view of the holding device according to the invention;
Fig. 5
a plan view of the in the Fig. 1 visible side of the recording device according to the invention;
Fig. 6
a longitudinal section through a receiving device according to the invention;
Fig. 7
a cross section through a heating device according to the invention;
Fig. 8
a perspective view of a heater from inventive recording device having heaters according to the Fig. 7 ;
Fig. 9a-d
Views of another embodiment of a device according to the invention for receiving ceramic heating elements;
Fig. 9e
a section along AA the Fig. 9a this embodiment;
Fig. 10
a sectional view corresponding to the Fig. 9e for a further embodiment of the device according to the invention;
Fig. 11a, b
Views of a further embodiment of the device according to the invention; and
Fig. 12a-c
Views of a preferred embodiment of the device according to the invention with one-sided ceramic coating.

Die Figuren 1 bis 6 zeigen verschiedene Darstellungen einer erfindungsgemäßen Vorrichtung zum Aufnehmen von Keramik-Heizelementen im Rahmen einer erfindungsgemäßen Heizvorrichtung, wie sie in der Fig. 7 dargestellt ist.The FIGS. 1 to 6 show various representations of a device according to the invention for receiving ceramic heating elements in the context of a heating device according to the invention, as shown in the Fig. 7 is shown.

Eine Vorrichtung zum Aufnehmen von Keramik-Heizelementen, kurz Aufnahme-Vorrichtung weist zunächst einen Rahmen 1 auf, der vorzugsweise aus Kunststoff, gegebenenfalls aber auch aus Polymerkeramik oder Keramik besteht und damit in jedem Fall elektrisch isolierend ausgebildet ist. In dem Rahmen 1 ist bei Kunststoff bzw. Polymerkeramik eine Kontaktplatte 2 eingespritzt und wird demgemäss im Rahmen 1 mit hoher Kraft kraftschlüssig gehalten. Bei Keramik wird die Kontaktplatte in geeigneter Weise mit dieser umsprüht, wobei gegebenenfalls noch spanabhebende Nachbearbeitungen vorgenommen wurden. Auf jeden Fall haften Rahmen und Kontaktplatte aneinander. Ein Herausziehen der Kontaktplatte 2 aus dem Rahmen 1 ist nicht möglich, es sei denn, es würden maschinelle Hilfsmittel eingesetzt, wobei dann allerdings der Rahmen beschädigt oder zerstört würde.A device for receiving ceramic heating elements, briefly receiving device initially has a frame 1, which is preferably made of plastic, but optionally also of polymer ceramic or ceramic and thus formed in each case electrically insulating. In the frame 1, a contact plate 2 is injected in plastic or polymer ceramic and is accordingly held frictionally in the frame 1 with high force. In ceramic, the contact plate is sprayed in a suitable manner with this, with optionally still machined reworking were made. In any case, frame and contact plate stick together. Pulling out the contact plate 2 from the frame 1 is not possible, unless it were used mechanical aids, in which case, however, the frame would be damaged or destroyed.

Der Rahmen 1 weist über seine größte Länge lediglich parallel verlaufende Längsstege 1.1 auf, die nach innen hin gerichtete Längsnuten 1.2 haben. Die Kontaktplatte 2 ist über den größten Teil ihrer Länge in den Nuten 1.2 der Stege 1.1 gehalten. In einem kurzen Längsabschnitt 1.3 mit gegenüber der Rahmen- und Kontaktplattenlänge geringerer Länge ist die Kontaktplatte 2 über jedem Querschnitt allseitig von Rahmenmaterial umgeben, wobei die Kraft des Kraftschlusses zwischen Rahmen 1 und Kontaktplatte 2 im wesentlichen in diesem Bereich gegeben ist. Bei einer Stärke des Rahmens von weniger als 2 mm und einer Stärke der Kontaktplatte von ca. 0,5 mm liegt die Rahmenschicht auf der in Fig. 3 sichtbaren Seite des Längsabschnitts 1. 3 in der Größenordnung von ebenfalls 0,5 mm und auf der der sich Fig. 3 abgewandten in Fig. 1 sichtbaren Seite in der Größenordnung von etwa 1 mm.The frame 1 has over its greatest length only parallel longitudinal webs 1.1, which have inwardly directed longitudinal grooves 1.2. The contact plate 2 is held over most of its length in the grooves 1.2 of the webs 1.1. In a short longitudinal section 1.3 with respect to the frame and contact plate length lesser length, the contact plate 2 is surrounded on all sides of frame material over each cross section, wherein the force of frictional connection between the frame 1 and contact plate 2 is given substantially in this area. With a thickness of the frame of less than 2 mm and a thickness of the contact plate of about 0.5 mm, the frame layer lies on the in Fig. 3 visible side of the longitudinal section 1. 3 in the order of also 0.5 mm and on the itself Fig. 3 facing away from Fig. 1 visible side of the order of about 1 mm.

Im Bereich des Längsabschnitts 1.3 sind seitlich in der Folge der Längsstege 1.1 bogenförmige Ausbiegungen 7 am Rahmen 1 vorgesehen, mittels derer der Rahmen 2 in einem Aluminiumprofilrohr (Fig. 7) zur Montage zunächst klemmend fixierbar ist.In the region of the longitudinal section 1.3 arcuate bends 7 are provided laterally in the sequence of the longitudinal webs 7 on the frame 1, by means of which the frame 2 in an aluminum profile tube ( Fig. 7 ) is initially clamped fixable for mounting.

Wie insbesondere den Figuren 1, 5 und 6 entnehmbar ist, sind die Längsstege 1.1 auf der in den Figuren 1 und 5 sichtbaren Seite durch mit Abstand in'Längsrichtung angeordnete Querstege 1.4 verbunden.As in particular the FIGS. 1 . 5 and 6 is removable, the longitudinal webs are 1.1 on in the FIGS. 1 and 5 visible side connected by spaced in'longitudinal direction transverse webs 1.4.

Zur Innenseite der Längsstege 1.1 und der Querstege 1.4 sind nach innen gerichtete Nasen 4 vorgesehen. Diese dienen zur Aufnahme von den Längs- und Querstegen umfassten Ausnehmungen einzulegenden Keramik-Heizelementen (PTC-Elemente, Kaltleiter-Elemente).To the inside of the longitudinal webs 1.1 and the transverse webs 1.4 inwardly directed lugs 4 are provided. These serve to receive ceramic heating elements (PTC elements, PTC elements) to be inserted into the recesses which comprise the longitudinal and transverse webs.

Weiter sind an einem Stirnende des Rahmens 1 dessen über seine gesamte Länge hin im wesentlichen konstanten Querschnitt überragende Haken 5 vorgesehen, die an der-Stirnseite eines Profilrohres, in dem die Haltevorrichtung zur Bildung einer Heizvorrichtung gehalten ist zur Anlage kommen und so die Endposition beim Einschieben der Aufnahme-Vorrichtung in ein solches Profilrohr begrenzen. An der den Haken 5 abgewandten Seite überragt die Kontaktplatte 2 den Halterahmen mit einer Anschlusslasche 2.1.Further, over its entire length substantially constant cross-section superior hooks 5 are provided at one end face of the frame 1, which come to the end face of a profile tube in which the holding device is held to form a heater to rest and so the final position during insertion limit the recording device in such a profile tube. At the side facing away from the hook 5, the contact plate 2 projects beyond the holding frame with a connecting lug 2.1.

Mittels der erfindungsgemäßen Aufnahme-Vorrichtung, wie sie vorstehend unter Bezug auf die Figuren 1 bis 6 beschrieben wurde, wird eine Heizvorrichtung, wie sie im Querschnitt in der Figur 7 dargestellt ist, derart geschaffen, indem in die Ausnehmungen 3 zwischen den Längs- und Querstegen 1.1, 1.4 des Halterahmens Keramik-Heizelemente 8 eingelegt werden, die durch die Nasen 4 in den Ausnehmungen 3 reibschlüssig gehalten werden. Von der in Ausnehmungen 3 abgewandten Seite des Rahmens 1 (von der in den Figuren 2 und 3 sichtbaren Seite her) wird ein Isolierstreifen 9 gegen die Kontaktplatte 2 gehalten. Die gesamte Anordnung wird in ein Profilrohr 10 mit rechteckigem Querschnitt eingeführt. Dieses wird dann von den Flachseiten gegen die in es eingeführte beschriebene Anordnung verpresst, so dass diese ebenfalls kraftschlüssig im Profilrohr 10 gehalten wird. Die Stirnseiten des Profilrohres 10 können mit Verputzmasse verschlossen sein. Die Anschlusslaschen 2.1 der Kontaktplatten 2 ragen aus dem Profilrohr 10 heraus.By means of the recording device according to the invention, as described above with reference to the FIGS. 1 to 6 is described, a heating device, as shown in cross-section in the FIG. 7 is shown, created in such a way by in the recesses 3 between the longitudinal and transverse webs 1.1, 1.4 of the holding frame ceramic heating elements 8 are inserted, which are frictionally held by the lugs 4 in the recesses 3. From the side facing away from the recesses 3 of the frame 1 (from the in the Figures 2 and 3 visible side) an insulating strip 9 is held against the contact plate 2. The entire assembly is inserted into a profile tube 10 of rectangular cross-section. This is then pressed by the flat sides against the described arrangement introduced in it, so that it is also held in a non-positive manner in the profile tube 10. The end faces of the profile tube 10 may be closed with plaster. The connection tabs 2.1 of the contact plates 2 protrude from the profile tube 10.

Derart gebildete Einzel-Heizvorrichtungen können in einem Heizregister eingesetzt werden, wie es in der Figur 8 dargestellt ist. Hierbei sind mehrere Einzel-Heizvorrichtungen 11 mit Abstand zueinander parallel klemmend in Durchbrüchen von wärmeleitenden Lamellen 12 gehalten. Mittels einer Heizvorrichtung und/oder eines Heizregisters können Fluide, Luft, Flüssigkeiten erwärmt werden.Thus formed single heaters can be used in a heating coil, as shown in the FIG. 8 is shown. In this case, a plurality of individual heaters 11 are held at a distance from each other in a parallel clamping manner in apertures of heat-conducting fins 12. By means of a heating device and / or a heating register fluids, air, liquids can be heated.

Während die Ausgestaltungen der Fig. 1 bis 5 einen Rahmen 1 zeigen, bei denen die der Aufnahmeseite für die Heizelemente abgewandte Seite der Kontaktplatte 2 nicht abgedeckt ist - sondern vielmehr später vor Erstellung des Heizkörpers durch eine separate Isolierplatte abgedeckt wird -, zeigen die Fig. 9 und 10 Ausgestaltungen, bei denen auch die fragliche (Unter-)Seite der Kontaktplatte unmittelbar durch den Rahmen kraftschlüssig und haftend abgedeckt ist. Gleiche Teile sind mit gleichen Bezugszeichen versehen. Insbesondere aus den Darstellungen der Fig. 9c und 9e ist entnehmbar, dass bei der Ausgestaltung der Fig. 9 der Rahmen nicht nur an den Kanten oder Schmalseiten der Kontaktplatte 2 diese umfasst, sondern er hier einstückig auch die genannte (Unter-)Seite der Kontaktplatte abdeckt.While the designs of the Fig. 1 to 5 show a frame 1, in which the receiving side facing away from the heating elements side of the contact plate 2 is not covered - but rather is covered by a separate insulating plate later before creation of the radiator -, show the Fig. 9 and 10 Embodiments in which the question (bottom) side of the contact plate is directly covered by the frame frictionally and adhesively. Identical parts are provided with the same reference numerals. In particular, from the representations of Fig. 9c and 9e is removable, that in the embodiment of the Fig. 9 the frame not only at the edges or narrow sides of the contact plate 2 includes this, but it also integrally covers the said (bottom) side of the contact plate.

Dies kann, wie gesagt, im Spritzgussverfahren geschehen, bei dem der Rahmen, wie er in der Fig. 9 dargestellt ist, vollständig in einem Schritt eingespritzt wird. Während als Material grundsätzlich hier auch Kunststoff verwendet werden kann, so wird als bevorzugtes Material Polymerkeramik verwendet, da dieses eine bessere Wärmeleitfähigkeit als Kunststoff aufweist.This can, as I said, be done by injection molding, in which the frame, as in the Fig. 9 is fully injected in one step. While in principle plastic can also be used here as the material, polymer ceramic is used as the preferred material, since this has a better thermal conductivity than plastic.

Die Querschnittsdarstellung der Fig. 10 zeigt einen Verbund-Rahmen 1, bei diesem ist die Unterseite oder die der Auflageseite der Heizelemente abgewandte Seite der Kontaktplatte 2 mit einer separaten Schicht versehen. Hierbei handelt es sich vorzugsweise um eine Keramikschicht, die im APS-Verfahren (atmosphärisches Plasmasprühen) aufgesprüht wurde. Es kann sich aber grundsätzlich auch um eine Schicht aus Polymerkeramik handeln. Der restliche Rahmen, der im wesentlichen die Kontur hat wie der Rahmen der Fig. 1 bis 5, besteht aus Kunststoff oder Polymerkeramik (wenn die untere Abdeckung 1.5 aus Keramik besteht) und wurde anschließend im Spritzgussverfahren aufgebracht.The cross-sectional representation of Fig. 10 shows a composite frame 1, in this is the bottom or the support side of the heating elements facing away from the contact plate 2 provided with a separate layer. This is preferably a ceramic layer which has been sprayed in the APS process (atmospheric plasma spraying). But in principle it can also be a layer of polymer ceramic. The rest of the frame, which has essentially the same contour as the frame Fig. 1 to 5 , is made of plastic or polymer ceramic (if the bottom cover 1.5 made of ceramic) and was then applied by injection molding.

Die Ausgestaltungen der Fig. 11 und 12 sind solche, die insbesondere zum Einsatz von Keramikmaterial als Isoliermaterial geeignet sind, wenn auch in grundsätzlicher Weise Polymerkeramik sowie gegebenenfalls auch Kunststoff eingesetzt werden können.The embodiments of Fig. 11 and 12 are those which are particularly suitable for use of ceramic material as an insulating material, although in principle polymer ceramic and optionally also plastic can be used.

Bei der Ausgestaltung der Fig. 11a und 11b ist eine ebene Kontaktplatte 2 mit einem Rahmen 1 versehen, der die Kontaktplatte 2 auf der Unterseite mit einer Abdeckschicht 1a vollständig abdeckt (Unterseite = die der Aufnahmeseite der Heizelemente abgewandte Seite).In the embodiment of Fig. 11a and 11b a flat contact plate 2 is provided with a frame 1 which completely covers the contact plate 2 on the underside with a covering layer 1a (underside = the side facing away from the receiving side of the heating elements).

Auf der der Abdeckschicht 1a abgewandten Seite weist der Rahmen 1 wiederum Stege 1.4 auf, die entsprechend dem vorzugsweise einzusetzenden Material relativ breit ausgebildet sind. Darüber hinaus ist aus dem gleichen Grunde die Feinstruktur vereinfacht und es sind beispielsweise keine Laschen 5, wie bei der Ausgestaltung der Fig. 9 vorhanden. Gegebenenfalls können Formausbildungen wiederum durch spanabhebende Nachbearbeitungen erzeugt werden.On the side facing away from the cover layer 1a, the frame 1 in turn webs 1.4, which are formed relatively wide according to the material preferably to be used. In addition, for the same reason, the fine structure is simplified and there are, for example, no tabs 5, as in the embodiment of Fig. 9 available. Optionally, mold formations can in turn be produced by machining post-processing.

Bei der Ausgestaltung der Fig. 12 ist lediglich auf der Unterseite der Kontaktplatte 2 eine Isolierschicht 1a, vorzugsweise aus Keramik, gegebenenfalls aber auch aus Polymerkeramik oder Kunststoff aufgebracht. Ein seitliches Halten der auf der anderen Seite der Kontaktplatte 2 aufzulegenden PTC-Elemente gegen Verrutschen erfolgt durch Vorsprünge 2a, die durch Ausprägungen aus der Kontaktplatte 2 gebildet sind, beispielsweise in Form von beulenartigen Ausprägungen, Bögen oder hausgedrückten Laschen-Elementen. Zusätzlich sind auch hier Kanten mit Isoliermaterial 1 entsprechend der Ausgestaltung der Fig. 11 bedeckt, einschließlich einem Überragen auf der die Heizelemente aufnehmenden Seite der Kontaktplatte 2.In the embodiment of Fig. 12 is only on the underside of the contact plate 2, an insulating layer 1a, preferably made of ceramic, but optionally also applied from polymer ceramic or plastic. A lateral hold the PTC elements to be laid on the other side of the contact plate 2 against slipping takes place by means of projections 2a, which are formed by characteristics of the contact plate 2, for example in the form of bump-like forms, arcs or pressed lashing elements. In addition, here are edges with insulating material 1 according to the embodiment of Fig. 11 covered, including an overhang on the heating elements receiving side of the contact plate. 2

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Rahmenframe
1a1a
Abdeckschichtcovering
1.11.1
Längsstegelongitudinal webs
1.21.2
Längsnutengrooves
1.31.3
Längsabschnittlongitudinal section
1.41.4
Querstegecrossbars
1.51.5
untere Abdeckunglower cover
22
Kontaktplattecontact plate
2a2a
Vorsprüngeprojections
2.12.1
Anschlusslascheconnection tab
33
Ausnehmungenrecesses
44
Nasennose
55
Hakenhook
77
Ausbiegungenbends
88th
Keramikheizelementenceramic heating elements
99
Isolierstreifeninsulating
1010
Profilrohrsection tube
1111
Einzel-HeizvorrichtungSingle heater
1212
Haltestegeretaining webs

Claims (28)

  1. A device for accommodating ceramic heating elements in a heating device, having an insulating frame (1) and at least one contact plate (2) held thereby, on which contact plate the heating elements may be placed, characterised in that the contact plate (2) and the frame (1) are joined together non-positively.
  2. A device according to claim 1, characterised in that the contact plate (2) is completely surrounded tightly by the frame (1) at least over a limited longitudinal portion thereof.
  3. A device according to claim 1 or claim 2, characterised in that the contact plate (2) is held over the majority of its length in grooves (1.2) of the frame (1) formed in longitudinal struts (1.1).
  4. A device according to any one of claims 1 to 3, characterised in that the contact plate (2) is additionally held form-fittingly in the frame (1).
  5. A device according to any one of claims 1 to 4, characterised in that the frame comprises crossbars (1.4) on one side of the contact plate (2), between which crossbars the heating elements may be inserted.
  6. A device according to claim 3 or claim 5, characterised in that the longitudinal struts (1.1) and crossbars (1.4) of the frame (1) surrounding the recesses accommodating the heating elements take the form of inwardly directed lugs (4) for form-fitting mounting of the heating elements.
  7. A device according to one of the preceding claims, characterised in that on the frame (1) bent-out portions (7) projecting beyond the narrow side are provided for force-locking fixing of the frame in a special section tube.
  8. A device according to any one of the preceding claims, characterised in that the contact plate (2) projects beyond the frame (1) at least at one end face.
  9. A device according to claim 8, characterised in that the contact plate (2) projects beyond the frame (1) at precisely one end face.
  10. A device according to claim 8 or claim 9, characterised in that the projecting end(s) of the contact plate (2) take the form of connecting lugs (2.1).
  11. A device according to any one of claims 1 to 10, characterised in that the frame (1) consists of one of the following materials or a composite of at least two thereof: plastic, polymer ceramic, ceramic applied by injection moulding.
  12. A device according to claim 11, characterised in that the frame (1) is completely closed on a side of the contact plate (2) remote from a receiving side for the heating elements and consequently the contact plate (2) is provided with a cover (1 a) covering it completely.
  13. A device according to claim 11 or claim 12, characterised in that the contact plate (2) is covered on its side remote from the receiving side for the heating elements by a covering layer (1 a) of polymer ceramic or ceramic, while the rest of the frame (1) consists of plastic or polymer ceramic.
  14. A device according to any one of claims 1 to 13, characterised by at least one insulating layer applied on a side of the contact plate (2) remote from the receiving side for the heating elements.
  15. A device according to claim 14, characterised in that the retaining elements (1) are formed by projections pressed out of the plane of the contact plate (2).
  16. A device according to claim 14, characterised in that the retaining elements (1) are formed by an insulating frame.
  17. A device according to any one of claims 14 to 16, characterised in that the insulating layer (1 a) consists of one of the following materials or a composite of at least two thereof: plastic, polymer ceramic, ceramic applied by injection moulding.
  18. A device according to claim 16 or claim 17, characterised in that the frame consists of one of the following materials or a composite of at least two thereof: plastic, polymer ceramic, ceramic applied by injection moulding.
  19. A device according to any one of claims 16 to 18, characterised in that the contact plate (2) is covered on its side remote from the receiving side for the heating elements by a covering layer (1 a) of polymer ceramic or ceramic, while the rest of the frame (1) consists of plastic or polymer ceramic.
  20. A device according to any one of claims 16 to 19, characterised by one or more of the characterising features of claims 2 to 10.
  21. A heating device with an electrically conductive special section tube and a holding device according to any one of claims 1 to 20 pushed therein, accommodating ceramic heating elements (8) in recesses (3) between longitudinal struts (1.1) and crossbars (1.4) and providing an insulating strip (9) on the side of the contact plate (2) remote from the heating elements (8).
  22. A heating register having a plurality of heating devices (11) according to claim 21 held parallel and at a distance from one another by retaining webs (12).
  23. A method of producing a device for accommodating ceramic heating elements in a heating device, characterised in that, as retaining elements for the heating elements, a frame (1) accommodating the contact plate (2) force-lockingly is applied thereto by injection moulding around or being sprayed on or around the contact plate (2).
  24. A method according to claim 23, characterised in that the frame is applied from one of the following materials: plastic, polymer ceramic, ceramic.
  25. A method according to claim 24, characterised in that ceramic is sprayed on by means of an atmospheric plasma spraying process.
  26. A method according to any one of claims 23 to 25, characterised in that plastic ceramic is injection moulded or polymer ceramic is sprayed onto one side of the contact plate (2) and the rest of the frame is provided by injection moulding around with plastic or polymer ceramic.
  27. A method according to any one of claims 23 to 26, characterised in that a layer of the following materials is injection moulded or sprayed at least onto a side of a contact plate remote from a receiving side for the heating elements: plastic, polymer ceramic, ceramic.
  28. A method according to claim 27, characterised in that, prior to application of the insulating layer, projections are pressed out of the plane of the contact plate to the side of the same which accommodates heating elements.
EP04008392A 2003-04-12 2004-04-07 Device for the admission of ceramic heating elements and procedure for the production of such Expired - Lifetime EP1467599B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE20305936U DE20305936U1 (en) 2003-04-12 2003-04-12 Device for accommodating ceramic heating elements in heating device has at least one contact plate on which heating elements can be placed and held by frame in force-locking manner
DE20305936U 2003-04-12
DE10333451A DE10333451B4 (en) 2003-04-12 2003-07-22 Apparatus for receiving ceramic heating elements and method for producing such
DE10333451 2003-07-22

Publications (3)

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EP1467599A2 EP1467599A2 (en) 2004-10-13
EP1467599A3 EP1467599A3 (en) 2006-04-05
EP1467599B1 true EP1467599B1 (en) 2008-11-26

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EP04008392A Expired - Lifetime EP1467599B1 (en) 2003-04-12 2004-04-07 Device for the admission of ceramic heating elements and procedure for the production of such

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EP (1) EP1467599B1 (en)
KR (1) KR20040089570A (en)

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Also Published As

Publication number Publication date
KR20040089570A (en) 2004-10-21
US20060138712A1 (en) 2006-06-29
US20040200829A1 (en) 2004-10-14
EP1467599A2 (en) 2004-10-13
US7977610B2 (en) 2011-07-12
US7816630B2 (en) 2010-10-19
EP1467599A3 (en) 2006-04-05

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