EP0521181A1 - PTC heating device - Google Patents

PTC heating device Download PDF

Info

Publication number
EP0521181A1
EP0521181A1 EP91111056A EP91111056A EP0521181A1 EP 0521181 A1 EP0521181 A1 EP 0521181A1 EP 91111056 A EP91111056 A EP 91111056A EP 91111056 A EP91111056 A EP 91111056A EP 0521181 A1 EP0521181 A1 EP 0521181A1
Authority
EP
European Patent Office
Prior art keywords
insulating frame
ptc
opening
pin
electrode plate
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
EP91111056A
Other languages
German (de)
French (fr)
Other versions
EP0521181B1 (en
Inventor
Franz Bohlender
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.)
DBK David and Baader GmbH
Original Assignee
DBK David and Baader GmbH
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 DBK David and Baader GmbH filed Critical DBK David and Baader GmbH
Priority to EP91111056A priority Critical patent/EP0521181B1/en
Priority to DE59107483T priority patent/DE59107483D1/en
Priority to ES91111056T priority patent/ES2086434T3/en
Publication of EP0521181A1 publication Critical patent/EP0521181A1/en
Application granted granted Critical
Publication of EP0521181B1 publication Critical patent/EP0521181B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • H05B3/10—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
    • H05B3/12—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
    • H05B3/14—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material the material being non-metallic
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C1/00—Details
    • H01C1/14—Terminals or tapping points or electrodes specially adapted for resistors; Arrangements of terminals or tapping points or electrodes on resistors
    • H01C1/1406—Terminals or electrodes formed on resistive elements having positive temperature coefficient
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C1/00—Details
    • H01C1/14—Terminals or tapping points or electrodes specially adapted for resistors; Arrangements of terminals or tapping points or electrodes on resistors
    • H01C1/144—Terminals or tapping points or electrodes specially adapted for resistors; Arrangements of terminals or tapping points or electrodes on resistors the terminals or tapping points being welded or soldered
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
    • H01C7/02—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having positive temperature coefficient

Definitions

  • the present invention relates to a PTC heater according to the preamble of claim 1.
  • a heater is known from DE-PS 30 42 420.
  • Such radiators usually have several flat heating elements.
  • the heating elements consist of a positioning frame made of insulating material, which has several openings in which form-adapted PTC elements are arranged.
  • the positioning frame is covered on both sides by electrode plates so that the PTC elements are in contact with both electrode plates and are prevented from falling out of the openings.
  • a problematic point in the production of such radiators or heating elements is the connection between the electrode plates with the position or insulating frame. With a number of previously known heating elements, this is achieved by means of suitable, attached clamping devices.
  • the attachment of the electrode plates to the position or insulating frame is achieved by means of connecting lugs formed on the electrode plates, which are inserted through openings in the position frame and bent over on the other side of the position frame.
  • Electrode plates on the positioning frame is that the electrode plates have to be made of a relatively strong sheet metal so that the connecting lugs formed on the electrode plate and having the same sheet thickness are sufficiently strong so that a by bending the connecting lugs on the other side of the positioning frame permanent and firm connection can be achieved.
  • High sheet thicknesses for the electrode plates are undesirable, however, because they hinder the heat conduction between the heating PTC elements and the environment.
  • Another disadvantage of attaching the electrode plates to the positioning or insulating frame by means of connecting lugs is the great outlay for assembly. The connecting lugs can easily bend when the electrodes are joined together with the positioning frame, so that manual, time-consuming re-erection of the connecting lugs is necessary.
  • the object of the present invention is therefore to provide a PTC radiator in which a permanent, firm connection between the electrodes and the insulating frame can be produced in a simple and automation-appropriate manner.
  • the invention provides a PTC heating element in which, in addition to a firm and permanent connection between the electrode plates and the insulating frame, which can be produced easily and in a manner suitable for automation, electrode plates of very low thickness can be used.
  • the development according to the features of claim 2 of the present invention has the advantage of a particularly simple type of connector.
  • the plug connection consists only of a pin formed on the insulating frame and an opening provided on the electrode plate, the diameters of which are such that the pin sits in the opening of the electrode by means of a press fit, the plug connection is extremely easy to manufacture and this lowers the manufacturing costs of the PTC radiator.
  • Another advantage is the simple assembly of the electrodes with the insulating frame, which makes it easy to automate the assembly, which in turn lowers the manufacturing costs for the PTC radiator.
  • the embodiment according to claim 3 of the present invention also has the advantage of an automation-appropriate and therefore cost-reducing possibility of connecting the electrode plates to the insulating frame.
  • the particular advantage of this embodiment can be seen in the fact that the plug connection is completely flat, ie without elevations on the side of the electrode plate facing away from the insulating frame. As a result, the electrode can lie evenly on the body to be heated, so that good heat coverage is ensured.
  • the embodiment of the present invention according to the features of claim 5 has the advantage that the hollow pins are easy to manufacture and can be easily expanded by means of an embossing mandrel inserted from the opposite side of the insulating frame.
  • the embodiment of the present invention according to the features of claim 6, in which the electrodes are made of sheet metal strips with a thickness of less than 0.2 mm, preferably 0.1 mm, has the advantage that the electrodes, due to the small Starch have a particularly good thermal conductivity.
  • the embodiment of the invention according to the features of claim 8 has the advantage that through the opening designed as a slot, the electrodes are firmly connected to the insulating frame, but can expand freely when heated, so that no tension and in particular, the electrodes are not bent open, as a result of which the contact between the PTC elements and the electrodes could deteriorate.
  • each electrode reliably closes the openings covered by it, so that falling out of the PTC elements, even if they are very small, is reliably prevented.
  • the PTC radiator has an insulating frame 1 with openings 2 and shape-adapted PCT resistance elements 3 used therein on.
  • the flat insulating frame is surrounded on both sides by electrodes 4 and 4a, so that the PTC elements are held securely between the electrode plates 4 and 4a and are in contact with them.
  • the electrode plates 4 and 4a are firmly connected to the insulating frame 1 by means of plug connections 5.
  • the plug connections consist of pins 6 and 6 'and openings 7 and 7'.
  • One of the electrode plates shown in FIG. 1 could also be designed in two pieces to achieve three heating levels. A first heating level would then correspond to heating only one PTC element, a second heating level to heating the other PTC element and a third heating level to heating both PTC elements simultaneously.
  • the two-part electrode plate could be formed by two of the shorter electrode plates shown in FIG. 2.
  • the pins are integrally formed on the electrode plates.
  • the pins are inserted into the openings 7, which are dimensioned such that each electrode is press-fitted to the insulating frame.
  • Each electrode is attached to the insulating frame with at least two such plug connections.
  • each electrode plate is connected to the insulating frame at as many points as is necessary to hold the PTC elements securely in the openings.
  • FIGS. 3a and 3b show one possibility of how the pins can be manufactured extremely easily and in a manner suitable for automation.
  • a cross slot 8 is punched in at the point where the pin is to be provided.
  • the triangular, punched tongues 9 are then placed perpendicular to the electrode plate by means of a stamp, so that the pin 6 is formed.
  • the insulating frame expediently has a bore with a profile according to FIG. 4.
  • Fig. 4 shows a cross section through a plug connection 5 on the insulating frame. It can be seen that the bore of the opening 7 has a larger diameter in the outer regions than in the inner region of the bore.
  • the pin 6 of the electrode 4 or 4a has a diameter which corresponds approximately to the diameter of the narrowed point 10 of the opening 7.
  • the plug connections shown in FIGS. 1 and 4 have the advantage that after the electrode plate has been fastened to the insulating frame, no elevations occur on the surface of the electrode plate facing away from the insulating frame.
  • the PTC radiator can therefore lie flat on the body to be heated, which ensures good heat conduction.
  • each electrode plate 4 has cutouts 13 in the areas in which the openings for the respective other electrode plate are provided in the insulating frame. Such a recess is also necessary if the widening of the pegs shown in FIG. 4 is to be carried out with the aid of an embossing mandrel, since the widening of the pegs in one of the electrodes must not be blocked by the other electrode from access to the openings.
  • the electrode plates are preferably made of a spring-hard brass sheet with a thickness of less than 0.2 mm, but preferably of 0.1 mm. Such thin brass sheets have excellent thermal conductivity, so that the heat given off by the PTC elements can be passed on to the environment.
  • the pins 6 ' are not formed on the electrode plates 4 or 4a, but on the insulating frame 1 itself. Accordingly, the electrode plates 4 and 4a have openings 7 '.
  • the pins 6 'and the openings 7' are dimensioned with respect to one another in such a way that the electrodes are press-fitted to the insulating frame 1 by means of an interference fit are connected.
  • the openings 7 ' can also be designed as slots 7', so that a temperature-dependent expansion of the electrode plates to avoid mechanical stresses is made possible.
  • the cutouts can in turn be useful if one of the electrode plates is designed in two pieces to achieve three heating levels.
  • the recesses 13 enable the short electrodes arranged on a common side of the insulating frame to be arranged in a space-saving and contact-free manner so that they engage in the respective recess of the other electrode.
  • the electrode plates 4 and 4a can be connected to the electrical supply lines 15 by a crimp connection 14 provided integrally on the electrode plates.
  • a connection to the electrical lines 15 is also possible according to FIG. 1 via plugs 16 which are plugged onto tongues 17 formed on the electrode plates.

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Ceramic Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Resistance Heating (AREA)

Abstract

PTC heating element having an insulating frame (1), at least two electrode plates (4, 4a), which are arranged on both sides of the insulating frame and are firmly connected to the insulating frame in each case at at least two points, and at least one PTC element (3), which is inserted into a perforation (2) in the insulating frame (1), is located between the two electrode plates and is in contact therewith, the attachment of each electrode plate (4, 4a) being achieved at a specific point on the insulating frame (1), in each case by means of a plug connection (5) which is constructed integrally on the insulating frame and the electrode plate. <IMAGE>

Description

Die vorliegende Erfindung betrifft einen PTC-Heizkörper gemäß dem Oberbegriff des Anspruchs 1. Ein solcher Heizkörper ist aus der DE-PS 30 42 420 bekannt.The present invention relates to a PTC heater according to the preamble of claim 1. Such a heater is known from DE-PS 30 42 420.

Derartige Heizkörper weisen in der Regel mehrere flache Heizelemente auf. Die Heizelemente bestehen dabei aus einem aus isolierendem Material gefertigten Positionsrahmen, welcher mehrere Durchbrüche aufweist, in denen formangepaßte PTC-Elemente angeordnet sind. Der Positionsrahmen wird zu beiden Seiten von Elektrodenplatten bedeckt, so daß die PTC-Elemente mit beiden Elektrodenplatten in Kontakt stehen und durch diese am Herausfallen aus den Durchbrüchen gehindert werden. Durch Anlegen von Spannung an die Elektrodenplatten fließt durch die PTC-Elemente ein Strom, wodurch diese erwärmt werden und zum Heizen ihrer Umgebung dienen können.Such radiators usually have several flat heating elements. The heating elements consist of a positioning frame made of insulating material, which has several openings in which form-adapted PTC elements are arranged. The positioning frame is covered on both sides by electrode plates so that the PTC elements are in contact with both electrode plates and are prevented from falling out of the openings. When voltage is applied to the electrode plates, a current flows through the PTC elements, which heats them up and can be used to heat their surroundings.

Ein problematischer Punkt bei der Herstellung derartiger Heizkörper bzw. Heizelemente besteht in der Verbindung zwischen den Elektrodenplatten mit dem Positions- bzw. Isolierrahmen. Bei einer Anzahl bisher bekannter Heizelemente wird dies mittels geeigneter, aufgesetzter Klemmvorrichtungen erreicht. Bei dem Heizelement der DE-PS 30 42 420 wird die Befestigung der Elektrodenplatten an dem Positions- bzw. Isolierrahmen mittels an den Elektrodenplatten ausgebildeter Anschlußfahnen, die durch Öffnungen im Positionsrahmen gesteckt und auf der jeweils anderen Seite des Positionsrahmens umgebogen werden, erreicht.A problematic point in the production of such radiators or heating elements is the connection between the electrode plates with the position or insulating frame. With a number of previously known heating elements, this is achieved by means of suitable, attached clamping devices. In the heating element of DE-PS 30 42 420, the attachment of the electrode plates to the position or insulating frame is achieved by means of connecting lugs formed on the electrode plates, which are inserted through openings in the position frame and bent over on the other side of the position frame.

Nachteilig bei einer derartigen Befestigung der Elektrodenplatten an dem Positionsrahmen ist, daß dazu die Elektrodenplatten aus einem relativ starken Blech gefertigt sein müssen, damit die an der Elektrodenplatte ausgebildeten und die gleiche Blechstärke aufweisenden Anschlußfahnen genügend stark sind, so daß durch das Umbiegen der Anschlußfahnen auf der anderen Seite des Positionsrahmens, eine dauerhafte und feste Verbindung erreicht werden kann. Hohe Blechstärken für die Elektrodenplatten sind jedoch unerwünscht, da sie die Wärmeleitung zwischen den heizenden PTC-Elementen und der Umgebung behindern. Ein weiterer Nachteil der Befestigung der Elektrodenplatten mittels Anschlußfahnen an dem Positions- bzw. Isolierrahmen besteht in dem großen Aufwand für den Zusammenbau. Die Anschlußfahnen können bei dem Zusammenfügen der Elektroden mit dem Positionsrahmen leicht umknicken, so daß ein manuelles zeitaufwendiges Wiederaufrichten der Anschlußfahnen notwendig wird. Auch ist der Vorgang des Verbindens der Elektrodenplatten mit dem Positionsrahmen mittels Anschlußfahnen schwer automatisierbar, was zu hohen Fertigungskosten führt. Schließlich ist eine Verbindung mittels an den Enden umgebogener Anschlußfahnen nicht über längere Zeit von großer Festigkeit, da sich die Elektrodenplatten aufgrund einer nachlassenden Spannung der Anschlußfahnen im Laufe der Zeit lockern.A disadvantage of such an attachment Electrode plates on the positioning frame is that the electrode plates have to be made of a relatively strong sheet metal so that the connecting lugs formed on the electrode plate and having the same sheet thickness are sufficiently strong so that a by bending the connecting lugs on the other side of the positioning frame permanent and firm connection can be achieved. High sheet thicknesses for the electrode plates are undesirable, however, because they hinder the heat conduction between the heating PTC elements and the environment. Another disadvantage of attaching the electrode plates to the positioning or insulating frame by means of connecting lugs is the great outlay for assembly. The connecting lugs can easily bend when the electrodes are joined together with the positioning frame, so that manual, time-consuming re-erection of the connecting lugs is necessary. The process of connecting the electrode plates to the position frame by means of connecting lugs is difficult to automate, which leads to high production costs. Finally, a connection by means of terminal lugs bent over at the ends is not of great strength over a long period of time, since the electrode plates loosen over time due to a decreasing tension of the terminal lugs.

Aufgabe der vorliegenden Erfindung ist es daher, einen PTC-Heizkörper anzugeben, bei dem in einfacher und automatisationsgerechter Weise eine dauerhafte feste Verbindung zwischen den Elektroden und dem Isolierrahmen herstellbar ist.The object of the present invention is therefore to provide a PTC radiator in which a permanent, firm connection between the electrodes and the insulating frame can be produced in a simple and automation-appropriate manner.

Diese Aufgabe wird durch die kennzeichnenden Merkmale des Anspruchs 1 gelöst.This object is achieved by the characterizing features of claim 1.

Durch die Erfindung wird ein PTC-Heizkörper geschaffen, bei dem neben einer festen und dauerhaften Verbindung zwischen den Elektrodenplatten und dem Isolierrahmen, welche einfach und automatisationsgerecht herstellbar ist, Elektrodenplatten von sehr geringer Stärke verwendet werden können.The invention provides a PTC heating element in which, in addition to a firm and permanent connection between the electrode plates and the insulating frame, which can be produced easily and in a manner suitable for automation, electrode plates of very low thickness can be used.

Die Weiterbildung gemäß den Merkmalen des Anspruchs 2 der vorliegenden Erfindung weist den Vorteil einer besonders einfachen Steckverbindungsart auf. Dadurch, daß die Steckverbindung lediglich durch einen am Isolierrahmen ausgebildeten Zapfen und einer an der Elektrodenplatte vorgesehener Öffnung besteht, die in ihren Durchmessern zueinander so bemessen sind, daß der Zapfen mittels Preßpassung in der Öffnung der Elektrode sitzt, ist die Steckverbindung äußerst leicht zu fertigen und senkt dadurch die Herstellungskosten des PTC-Heizkörpers. Ein weiterer Vorteil besteht in dem einfachen Zusammenbau der Elektroden mit dem Isolierrahmen, wodurch eine Automatisierung des Zusammenbaus einfach ermöglicht wird, was wiederum die Herstellungskosten für den PTC-Heizkörper senkt. Weiterhin besteht bei dieser Ausführungsform keine Gefahr, daß die Elektroden versehentlich kurzgeschlossen werden, da der Isolierrahmen keine seine gegenüberliegenden Seiten verbindende Bohrung, durch die ein Kurzschluß verursacht werden könnte, aufweist.The development according to the features of claim 2 of the present invention has the advantage of a particularly simple type of connector. Characterized in that the plug connection consists only of a pin formed on the insulating frame and an opening provided on the electrode plate, the diameters of which are such that the pin sits in the opening of the electrode by means of a press fit, the plug connection is extremely easy to manufacture and this lowers the manufacturing costs of the PTC radiator. Another advantage is the simple assembly of the electrodes with the insulating frame, which makes it easy to automate the assembly, which in turn lowers the manufacturing costs for the PTC radiator. Furthermore, in this embodiment, there is no danger that the electrodes may be accidentally short-circuited, since the insulating frame does not have a bore connecting its opposite sides, which could cause a short-circuit.

Die Ausführungsform gemäß dem Anspruch 3 der vorliegenden Erfindung weist ebenfalls den Vorteil einer automatisationsgerechten und daher die Kosten senkenden Verbindungsmöglichkeit der Elektrodenplatten mit dem Isolierrahmen auf. Der besondere Vorteil dieser Ausführungsform ist jedoch darin zu sehen, daß die Steckverbindung vollkommen flach, d.h. ohne Erhebungen auf der dem Isolierrahmen abgewandten Seite der Elektrodenplatte ausgeführt ist. Dadurch kann die Elektrode gleichmäßig an dem zu erwärmenden Körper anliegen, so daß ein guter Wärmeüberzug gewährleistet ist.The embodiment according to claim 3 of the present invention also has the advantage of an automation-appropriate and therefore cost-reducing possibility of connecting the electrode plates to the insulating frame. The particular advantage of this embodiment, however, can be seen in the fact that the plug connection is completely flat, ie without elevations on the side of the electrode plate facing away from the insulating frame. As a result, the electrode can lie evenly on the body to be heated, so that good heat coverage is ensured.

Die Weiterbildung der vorliegenden Erfindung gemäß den Merkmalen des Anspruchs 4 ermöglicht in vorteilhafter Weise eine besonders feste und dauerhafte Verbindung der Elektroden mit dem Isolierrahmen. Auch diese besonders zuverlässige Verbindungsart zwischen den Elektroden und dem Isolierrahmen eignet sich für eine automatisationsgerechte Fertigung des PTC-Heizkörpers.The development of the present invention according to the features of claim 4 advantageously enables a particularly firm and permanent connection of the electrodes to the insulating frame. This particularly reliable type of connection between the electrodes and the insulating frame is also suitable for automated production of the PTC radiator.

Die Ausgestaltung der vorliegenden Erfindung gemäß den Merkmalen des Anspruchs 5 weist den Vorteil auf, daß die hohl ausgeführten Zapfen leicht herstellbar sind und mittels eines von der Gegenseite des Isolierrahmens eingeführten Prägedorns leicht aufweitbar sind.The embodiment of the present invention according to the features of claim 5 has the advantage that the hollow pins are easy to manufacture and can be easily expanded by means of an embossing mandrel inserted from the opposite side of the insulating frame.

Die Ausgestaltung der vorliegenden Erfindung gemäß den Merkmalen des Anspruchs 6, bei der die Elektroden aus Blechstreifen mit einer Stärke von weniger als 0,2 mm, vorzugsweise von 0,1 mm gefertigt sind, weist den Vorteil auf, daß die Elektroden, aufgrund der geringen Stärke eine besonders gute Wärmeleitfähigkeit besitzen.The embodiment of the present invention according to the features of claim 6, in which the electrodes are made of sheet metal strips with a thickness of less than 0.2 mm, preferably 0.1 mm, has the advantage that the electrodes, due to the small Starch have a particularly good thermal conductivity.

Die Weiterbildung gemäß den Merkmalen des Anspruchs 7 weist den Vorteil auf, daß die Zapfen so ausgeführt sind, daß sie besonders einfach herstellbar sind.The development according to the features of claim 7 has the advantage that the pins are designed so that they are particularly easy to manufacture.

Die Ausgestaltung der Erfindung gemäß den Merkmalen des Anspruchs 8 den Vorteil auf, daß durch die als Schlitz ausgeführte Öffnung die Elektroden zwar fest mit dem Isolierrahmen verbunden sind, sich aber bei Erwärmung frei ausdehnen können, so daß keine Verspannung und insbesondere kein Aufbiegen der Elektroden erfolgt, wodurch sich der Kontakt zwischen den PTC-Elementen und den Elektroden verschlechtern könnte.The embodiment of the invention according to the features of claim 8 has the advantage that through the opening designed as a slot, the electrodes are firmly connected to the insulating frame, but can expand freely when heated, so that no tension and in particular, the electrodes are not bent open, as a result of which the contact between the PTC elements and the electrodes could deteriorate.

Schließlich weist die Weiterbildung der vorliegenden Erfindung gemäß den Merkmalen des Anspruchs 9 den Vorteil auf, daß jede Elektrode die von ihr bedeckten Durchbrüche zuverlässig verschließt, so daß ein Herausfallen der PTC-Elemente, selbst wenn diese sehr klein ausgeführt sind, zuverlässig verhindert wird.Finally, the development of the present invention according to the features of claim 9 has the advantage that each electrode reliably closes the openings covered by it, so that falling out of the PTC elements, even if they are very small, is reliably prevented.

Die Erfindung wird nachfolgend unter Bezugnahme auf in den Zeichnungen dargestellte Ausführungsbeispiele näher erläutert. Es zeigt:

Fig. 1
eine perspektivische Darstellung eines PTC-Heizkörpers gemäß einer ersten Ausführungsform der Erfindung;
Fig. 2
eine perspektivische Darstellung eines PTC-Heizkörpers gemäß einer zweiten Ausführungsform der Erfindung;
Fig. 3a und 3b
eine besonders einfache und kostengünstige Ausführungsform für die Zapfen der Steckverbindung des Ausführungsbeispiels der Fig. 1
Fig. 4
einen Querschnitt durch eine besonders bevorzugte Ausgestaltung der Steckverbindung gemäß dem Ausführungsbeispiel der Fig. 1.
The invention is explained in more detail below with reference to exemplary embodiments shown in the drawings. It shows:
Fig. 1
a perspective view of a PTC heater according to a first embodiment of the invention;
Fig. 2
a perspective view of a PTC heater according to a second embodiment of the invention;
3a and 3b
a particularly simple and inexpensive embodiment for the pin of the connector of the embodiment of FIG. 1st
Fig. 4
2 shows a cross section through a particularly preferred embodiment of the plug connection according to the exemplary embodiment in FIG. 1.

Gemäß den Fig. 1 und 2 weist der PTC-Heizkörper einen Isolierrahmen 1 mit ausgebildeten Durchbrüchen 2 und darin eingesetzten formangepaßten PCT-Widerstands-Elemente 3 auf. Der flach ausgebildete Isolierrahmen wird zu beiden Seiten von Elektroden 4 und 4a umgeben, so daß die PTC-Elemente sicher zwischen den Elektrodenplatten 4 und 4a gehalten werden und mit diesen in Kontakt stehen. Die Elektrodenplatten 4 und 4a sind mittels Steckverbindungen 5 fest mit dem Isolierrahmen 1 verbunden. Die Steckverbindungen bestehen aus Zapfen 6 bzw. 6' und Öffnungen 7 bzw. 7'.1 and 2, the PTC radiator has an insulating frame 1 with openings 2 and shape-adapted PCT resistance elements 3 used therein on. The flat insulating frame is surrounded on both sides by electrodes 4 and 4a, so that the PTC elements are held securely between the electrode plates 4 and 4a and are in contact with them. The electrode plates 4 and 4a are firmly connected to the insulating frame 1 by means of plug connections 5. The plug connections consist of pins 6 and 6 'and openings 7 and 7'.

Eine der in Figur 1 gezeigten Elektrodenplatten könnte zur Erzielung dreier Heizstufen auch zweistückig ausgebildet sein. Einer ersten Heizstufe entspräche dann das Heizen nur des einen PTC-Elements, einer zweiten Heizstufe das Heizen des anderen PTC-Elements und einer dritten Heizstufe das Heizen beider PTC-Elemente gleichzeitig. Die zweigeteilte Elektrodenplatte könnte dabei durch zwei der kürzeren, in Figur 2 dargestellten Elektrodenplatten gebildet sein.One of the electrode plates shown in FIG. 1 could also be designed in two pieces to achieve three heating levels. A first heating level would then correspond to heating only one PTC element, a second heating level to heating the other PTC element and a third heating level to heating both PTC elements simultaneously. The two-part electrode plate could be formed by two of the shorter electrode plates shown in FIG. 2.

Im Falle des Ausführungsbeispiels gemäß der Fig. 1 sind die Zapfen integral an den Elektrodenplatten ausgebildet. Die Zapfen werden in die Öffnungen 7 eingeführt, welche so bemessen sind, daß jede Elektrode über die Zapfen mittels Preßpassung mit dem Isolierrahmen verbunden ist. Jede Elektrode ist mit mindestens zwei derartiger Steckverbindungen an dem Isolierrahmen befestigt. Allgemein ist jede Elektrodenplatte an so vielen Punkten mit dem Isolierrahmen verbunden, wie es notwendig ist, um die PTC-Elemente sicher in den Durchbrüchen zu halten. Im Falle der Fig. 1 sind dies jeweils drei Verbindungspunkte, so daß an jeder Stirnseite der Durchbrüche je ein Verbindungspunkt vorhanden ist. Durch das sichere Verschließen der Durchbrüche mit den Elektrodenplatte können die PTC-Elemente auch sehr klein ausgeführt sein und müssen nicht zwingend an die Form der Durchbrüche angepaßt sein.In the case of the exemplary embodiment according to FIG. 1, the pins are integrally formed on the electrode plates. The pins are inserted into the openings 7, which are dimensioned such that each electrode is press-fitted to the insulating frame. Each electrode is attached to the insulating frame with at least two such plug connections. In general, each electrode plate is connected to the insulating frame at as many points as is necessary to hold the PTC elements securely in the openings. In the case of FIG. 1, there are three connection points each, so that there is a connection point on each end face of the openings. By securely closing the openings with the electrode plate, the PTC elements can also be made very small and do not necessarily have to conform to the shape of the openings be adjusted.

Die Fig. 3a und 3b zeigen eine Möglichkeit, wie die Zapfen äußerst einfach und automatisationsgerecht hergestellt werden können. In einem ersten Schritt wird ein Kreuzschlitz 8 an der Stelle, wo der Zapfen vorgesehen sein soll, eingestanzt. In einem zweiten Arbeitsschritt werden dann die dreieckförmigen, gestanzten Zungen 9 senkrecht zur Elektrodenplatte mittels eines Stempels aufgestellt, so daß der Zapfen 6 entsteht.FIGS. 3a and 3b show one possibility of how the pins can be manufactured extremely easily and in a manner suitable for automation. In a first step, a cross slot 8 is punched in at the point where the pin is to be provided. In a second step, the triangular, punched tongues 9 are then placed perpendicular to the electrode plate by means of a stamp, so that the pin 6 is formed.

Zweckmäßigerweise weist der Isolierrahmen eine Bohrung mit einem Profil gemäß der Fig. 4 auf. Fig. 4 zeigt einen Querschnitt durch eine Steckverbindung 5 am Isolierrahmen. Zu erkennen ist, daß die Bohrung der Öffnung 7 in den Außenbereichen einen weiteren Durchmesser aufweist als im Innenbereich der Bohrung. Der Zapfen 6 der Elektrode 4 bzw. 4a weist einen Durchmesser auf, der etwa dem Durchmesser der verengten Stelle 10 der Öffnung 7 entspricht. Nach Auflegen der Elektrodenplatte 4 auf den Isolierrahmen 1 derart, daß der Zapfen 6 in seiner entsprechenden Öffnung 7 sitzt, wird der in seiner Länge über die verengte Stelle 10 der Öffnung 7 reichende Zapfen 6, von der der Elektrode gegenüberliegenden Seite des Isolierrahmens 1 mittels eines Prägedornes 11 aufgeweitet, so daß ein Zurückweichen des derart in seinem Durchmesser vergrößerten Zapfens 6 aufgrund der verengten Stelle 10 der Öffnung 7 verhindert wird. Um die Elektrode während des Aufweitens mittels des Prägedorns nicht wieder aus der Öffnung herauszuschieben, wird während des Aufweitens mit dem Prägedorn von der anderen Seite der Elektrode mit einer Gegenhülse 12 gegengehalten. Eine auf diese Weise befestigte Elektrode ist in äußerst dauerhafter Weise fest mit dem Isolierrahmen verbunden.The insulating frame expediently has a bore with a profile according to FIG. 4. Fig. 4 shows a cross section through a plug connection 5 on the insulating frame. It can be seen that the bore of the opening 7 has a larger diameter in the outer regions than in the inner region of the bore. The pin 6 of the electrode 4 or 4a has a diameter which corresponds approximately to the diameter of the narrowed point 10 of the opening 7. After placing the electrode plate 4 on the insulating frame 1 in such a way that the pin 6 is seated in its corresponding opening 7, the pin 6 reaching in length over the narrowed point 10 of the opening 7 is removed from the side of the insulating frame 1 opposite the electrode by means of a Embossing mandrel 11 widened, so that a retraction of the pin 6 thus enlarged in diameter due to the narrowed point 10 of the opening 7 is prevented. In order not to push the electrode out of the opening again during the expansion by means of the embossing mandrel, a counter sleeve 12 is held against the electrode from the other side during the expansion with the embossing mandrel. An electrode fastened in this way is firmly connected to the insulating frame in an extremely permanent manner.

Die in den Fig. 1 und 4 gezeigten Steckverbindungen weisen den Vorteil auf, daß nach Befestigung der Elektrodenplatte mit dem Isolierrahmen keine Erhebungen auf der dem Isolierrahmen abgewandten Oberfläche der Elektrodenplatte auftreten. Der PTC-Heizkörper kann daher plan auf dem zu beheizenden Körper aufliegen, wodurch eine gute Wärmeleitung gewährleistet ist.The plug connections shown in FIGS. 1 and 4 have the advantage that after the electrode plate has been fastened to the insulating frame, no elevations occur on the surface of the electrode plate facing away from the insulating frame. The PTC radiator can therefore lie flat on the body to be heated, which ensures good heat conduction.

Damit ein Kurzschluß zwischen den beiden Elektrodenplatten zuverlässig vermieden werden kann, weist jede Elektrodenplatte 4 in den Bereichen, in denen die Öffnungen für die jeweils andere Elektrodenplatte im Isolierrahmen vorgesehen sind, Aussparungen 13 auf. Auch ist eine derartige Aussparung notwendig, falls das in der Fig. 4 dargestellte Aufweiten der Zapfen mit Hilfe eines Prägedorns erfolgen soll, da diesem zum Aufweiten der Zapfen bei einer der Elektroden nicht von der anderen Elektrode der Zugang zu den Öffnungen versperrt sein darf.So that a short circuit between the two electrode plates can be reliably avoided, each electrode plate 4 has cutouts 13 in the areas in which the openings for the respective other electrode plate are provided in the insulating frame. Such a recess is also necessary if the widening of the pegs shown in FIG. 4 is to be carried out with the aid of an embossing mandrel, since the widening of the pegs in one of the electrodes must not be blocked by the other electrode from access to the openings.

Die Elektrodenplatten sind vorzugsweise aus einem federharten Messingblech mit einer Stärke kleiner als 0,2 mm, vorzugsweise jedoch von 0,1 mm, gefertigt. Derartig dünne Messingbleche weisen eine hervorragende Wärmeleitfähigkeit auf, so daß die von den PTC-Elementen abgegebene Wärme gut an die Umgebung weitergeleitet werden kann.The electrode plates are preferably made of a spring-hard brass sheet with a thickness of less than 0.2 mm, but preferably of 0.1 mm. Such thin brass sheets have excellent thermal conductivity, so that the heat given off by the PTC elements can be passed on to the environment.

In der Ausführungsform gemäß der Fig. 2 der vorliegenden Erfindung sind die Zapfen 6' nicht an den Elektrodenplatten 4 bzw. 4a, sondern an dem Isolierrahmen 1 selbst ausgebildet. Dementsprechend weisen die Elektrodenplatten 4 und 4a Öffnungen 7' auf. Bei dieser Ausführungsform sind die Zapfen 6' und die Öffnungen 7' zueinander so bemessen, daß die Elektroden durch die Zapfen mittels Preßpassung fest mit dem Isolierrahmen 1 verbunden sind. Die Öffnungen 7' können dabei auch als Schlitze 7' ausgeführt sein, so daß ein temperaturbedingtes Ausdehnen der Elektrodenplatten zur Vermeidung von mechanischen Spannungen ermöglicht wird. Bei dieser Ausführungsform besteht im Gegensatz zu der Ausführungsform der Fig. 1 keinerlei Gefahr, daß die Elektrodenplatten miteinander unmittelbar in Kontakt kommen können, da der Isolierrahmen keine Öffnungen aufweist. Folglich müssen keine Aussparungen 13 wie bei der Fig. 1 vorgesehen sein, wie dies in Fig. 2 gestrichelt angedeutet ist. Die Aussparungen können jedoch wiederum sinnvoll sein, wenn zur Erzielung dreier Heizstufen eine der Elektrodenplatten zweistückig ausgeführt ist. In diesem Falle ermöglichen die Aussparungen 13, daß die auf einer gemeinsamen Seite des Isolierrahmens angeordneten kurzen Elektroden platzsparend und berührungsfrei in die jeweilige Aussparung der anderen Elektrode eingreifend angeordnet sein können.In the embodiment according to FIG. 2 of the present invention, the pins 6 'are not formed on the electrode plates 4 or 4a, but on the insulating frame 1 itself. Accordingly, the electrode plates 4 and 4a have openings 7 '. In this embodiment, the pins 6 'and the openings 7' are dimensioned with respect to one another in such a way that the electrodes are press-fitted to the insulating frame 1 by means of an interference fit are connected. The openings 7 'can also be designed as slots 7', so that a temperature-dependent expansion of the electrode plates to avoid mechanical stresses is made possible. In this embodiment, in contrast to the embodiment of FIG. 1, there is no risk that the electrode plates can come into direct contact with one another since the insulating frame has no openings. Consequently, no cutouts 13 need to be provided as in FIG. 1, as is indicated by dashed lines in FIG. 2. However, the cutouts can in turn be useful if one of the electrode plates is designed in two pieces to achieve three heating levels. In this case, the recesses 13 enable the short electrodes arranged on a common side of the insulating frame to be arranged in a space-saving and contact-free manner so that they engage in the respective recess of the other electrode.

Die Elektrodenplatten 4 und 4a können gemäß Fig. 2 durch einen integral an den Elektrodenplatten vorgesehenen Crimpanschluß 14 mit den elektrischen Zuführungsleitungen 15 verbunden sein. Eine Verbindung mit den elektrischen Leitungen 15 ist gemäß Fig. 1 auch über Stecker 16, die auf an den Elektrodenplatten ausgebildete Zungen 17 gesteckt werden, möglich.2, the electrode plates 4 and 4a can be connected to the electrical supply lines 15 by a crimp connection 14 provided integrally on the electrode plates. A connection to the electrical lines 15 is also possible according to FIG. 1 via plugs 16 which are plugged onto tongues 17 formed on the electrode plates.

Claims (9)

PTC-Heizkörper mit einem Isolierrahmen (1), mindestens zwei auf beiden Seiten des Isolierrahmens angeordneten und mit dem Isolierrahmen jeweils an mindestens zwei Punkten fest verbundenen Elektrodenplatten (4, 4a) und mindestens einem in einem Durchbruch (2) des Isolierrahmens (1) eingesetzten, zwischen beiden Elektrodenplatten liegendem und mit diesen in Kontakt stehenden PTC-Element (3), dadurch gekennzeichnet, daß die Befestigung jeder Elektrodenplatte (4, 4a) in einem bestimmten Punkt am Isolierrahmen (1) jeweils mittels einer integral an dem Isolierrahmen und der Elektrodenplatte ausgebildeten Steckverbindung (5) erreicht ist.PTC radiator with an insulating frame (1), at least two electrode plates (4, 4a) arranged on both sides of the insulating frame and firmly connected to the insulating frame at at least two points, and at least one in an opening (2) of the insulating frame (1) , PTC element (3) lying between and in contact with the two electrode plates, characterized in that the fastening of each electrode plate (4, 4a) at a certain point on the insulating frame (1) each by means of an integral part of the insulating frame and the electrode plate trained connector (5) is reached. PTC-Heizkörper nach Anspruch 1, dadurch gekennzeichnet, daß die Steckverbindung aus einem am Isolierrahmen (1) ausgebildeten Zapfen (6') und einer an der Elektrodenplatte (4, 4a) ausgebildeten Öffnung (7') besteht, deren Durchmesser zueinander so bemessen sind, daß der Zapfen mittels Preßpassung in der Öffnung sitzt.PTC heating element according to claim 1, characterized in that the plug connection consists of a pin (6 ') formed on the insulating frame (1) and an opening (7') formed on the electrode plate (4, 4a), the diameters of which are dimensioned in relation to one another that the pin sits in the opening by means of a press fit. PTC-Heizkörper nach Anspruch 1, dadurch gekennzeichnet, daß die Steckverbindung aus einem an der Elektrodenplatte (4, 4a) ausgebildeten Zapfen (6) und einer an dem Isolierrahmen ausgebildeten Öffnung (7) besteht, deren Durchmesser zueinander so bemessen sind, daß der Zapfen mittels Preßpassung in der Öffnung sitzt.PTC heater according to claim 1, characterized in that the plug connection consists of a pin (6) formed on the electrode plate (4, 4a) and an opening (7) formed on the insulating frame, the diameters of which are dimensioned such that the pin sits in the opening by means of a press fit. PTC-Heizkörper nach Anspruch 1 oder 3, dadurch gekennzeichnet, daß die Öffnung im Isolierrahmen (1) von einer Bohrung gebildet wird, die den Isolierrahmen vollständig durchsetzt und die im Inneren des Isolierrahmens einen verengten Durchmesser (10) aufweist, derart, daß der Zapfen (6) mit seiner Spitze über die verengte Stelle bis in einen erweiterten Bereich ragt und in dieser Stellung aufgeweitet ist.PTC heating element according to Claim 1 or 3, characterized in that the opening in the insulating frame (1) is formed by a bore which passes completely through the insulating frame and which has a narrowed diameter (10) in the interior of the insulating frame, such that the pin (6) protrudes with its tip over the narrowed point into an enlarged area and is widened in this position. PTC-Element nach Anspruch 4, dadurch gekennzeichnet, daß der Zapfen (6) zur besseren Aufweitbarkeit hohl ausgeführt ist.PTC element according to claim 4, characterized in that the pin (6) is hollow for better expandability. PTC-Heizkörper nach mindestens einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Elektrodenplatten (4, 4a) als Blechstreifen mit einer Stärke von weniger als 0,2 mm, vorzugsweise von 0,1 mm ausgeführt sind.PTC heater according to at least one of the preceding claims, characterized in that the electrode plates (4, 4a) are designed as sheet metal strips with a thickness of less than 0.2 mm, preferably 0.1 mm. PTC-Heizkörper nach Anspruch 6, dadurch gekennzeichnet, daß der Zapfen an dem Blechstreifen durch Stanzen eines Kreuzschlitzes (8) in den Blechstreifen und Hochbiegen der dabei entstehenden dreieckförmigen Zungen (9) gebildet ist.PTC heater according to claim 6, characterized in that the pin on the sheet metal strip is formed by punching a cross slot (8) in the sheet metal strip and bending up the resulting triangular tongues (9). PTC-Heizkörper nach mindestens einem der Ansprüche 2 bis 7, dadurch gekennzeichnet, daß die Öffnung als Schlitz (7') ausgeführt ist, um der Elektrodenplatte (4, 4a) ein temperaturbedingtes freies Ausdehnen zu ermöglichen.PTC heater according to at least one of Claims 2 to 7, characterized in that the opening is designed as a slot (7 ') in order to allow the electrode plate (4, 4a) to expand freely as a result of the temperature. PTC-Heizkörper nach mindestens einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß jede Elektrodenplatte (4, 4a) mit mindestens je einer Steckverbindung (5) vor den Stirnseiten eines jeden von ihr bedeckten Durchbruchs (2) mit dem Isolierrahmen (1) verbunden ist.PTC heater according to at least one of Claims 1 to 8, characterized in that each electrode plate (4, 4a) is connected to the insulating frame (1) with at least one plug connection (5) in front of the end faces of each opening (2) covered by it is.
EP91111056A 1991-07-03 1991-07-03 PTC heating device Expired - Lifetime EP0521181B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP91111056A EP0521181B1 (en) 1991-07-03 1991-07-03 PTC heating device
DE59107483T DE59107483D1 (en) 1991-07-03 1991-07-03 PTC radiator
ES91111056T ES2086434T3 (en) 1991-07-03 1991-07-03 PTC HEATING DEVICE.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP91111056A EP0521181B1 (en) 1991-07-03 1991-07-03 PTC heating device

Publications (2)

Publication Number Publication Date
EP0521181A1 true EP0521181A1 (en) 1993-01-07
EP0521181B1 EP0521181B1 (en) 1996-02-28

Family

ID=8206895

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91111056A Expired - Lifetime EP0521181B1 (en) 1991-07-03 1991-07-03 PTC heating device

Country Status (3)

Country Link
EP (1) EP0521181B1 (en)
DE (1) DE59107483D1 (en)
ES (1) ES2086434T3 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1033065A1 (en) * 1997-10-07 2000-09-06 A.T.C.T. Advanced Thermal Chip Technologies Ltd. Immersible ptc heating device
EP1061776A1 (en) * 1999-06-15 2000-12-20 David &amp; Baader DBK Spezialfabrik elektrischer Apparate und Heizwiderstände GmbH Heating device specially made for heating air
DE20121116U1 (en) * 2001-12-21 2003-04-24 Fritz Eichenauer GmbH & Co. KG, 76870 Kandel Electric heating device for heating a liquid in a motor vehicle
US8229289B2 (en) 2006-03-21 2012-07-24 Rittal Gmbh & Co. Kg Condensate discharge by means of condensate evaporation in a cooling device
CN108151290A (en) * 2016-12-06 2018-06-12 埃贝赫卡腾有限两合公司 Electric heater unit and the PTC heating elements for electric heater unit
DE102021112839B3 (en) 2021-05-18 2022-06-09 Ntt New Textile Technologies Gmbh Method of making a connection between an electrode and an electrical conductor

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4242567A (en) * 1978-06-05 1980-12-30 General Electric Company Electrically heated hair straightener and PTC heater assembly therefor
DE3042420A1 (en) * 1980-11-11 1982-06-24 Fritz Eichenauer GmbH & Co KG, 6744 Kandel Electric heater with flat heating elements - has sheet metal contact strips, with resilient fastening tags, as heater terminals
EP0054901A1 (en) * 1980-12-22 1982-06-30 Kabelwerke Reinshagen GmbH Electrical heating arrangement
GB2181629A (en) * 1985-09-27 1987-04-23 Tdk Corp Ptc heating device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4242567A (en) * 1978-06-05 1980-12-30 General Electric Company Electrically heated hair straightener and PTC heater assembly therefor
DE3042420A1 (en) * 1980-11-11 1982-06-24 Fritz Eichenauer GmbH & Co KG, 6744 Kandel Electric heater with flat heating elements - has sheet metal contact strips, with resilient fastening tags, as heater terminals
EP0054901A1 (en) * 1980-12-22 1982-06-30 Kabelwerke Reinshagen GmbH Electrical heating arrangement
GB2181629A (en) * 1985-09-27 1987-04-23 Tdk Corp Ptc heating device

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1033065A1 (en) * 1997-10-07 2000-09-06 A.T.C.T. Advanced Thermal Chip Technologies Ltd. Immersible ptc heating device
EP1033065A4 (en) * 1997-10-07 2001-08-08 A T C T Advanced Thermal Chips Immersible ptc heating device
EP1061776A1 (en) * 1999-06-15 2000-12-20 David &amp; Baader DBK Spezialfabrik elektrischer Apparate und Heizwiderstände GmbH Heating device specially made for heating air
US6472645B1 (en) 1999-06-15 2002-10-29 David & Baader Spezialfabrik Elekrischer Apparate Und Heizwiderstande Gmbh Air heating device
DE20121116U1 (en) * 2001-12-21 2003-04-24 Fritz Eichenauer GmbH & Co. KG, 76870 Kandel Electric heating device for heating a liquid in a motor vehicle
US8229289B2 (en) 2006-03-21 2012-07-24 Rittal Gmbh & Co. Kg Condensate discharge by means of condensate evaporation in a cooling device
CN108151290A (en) * 2016-12-06 2018-06-12 埃贝赫卡腾有限两合公司 Electric heater unit and the PTC heating elements for electric heater unit
CN108151290B (en) * 2016-12-06 2021-01-15 埃贝赫卡腾有限两合公司 Electric heating device and PTC heating element for an electric heating device
DE102021112839B3 (en) 2021-05-18 2022-06-09 Ntt New Textile Technologies Gmbh Method of making a connection between an electrode and an electrical conductor
EP4092692A1 (en) 2021-05-18 2022-11-23 NTT New Textile Technologies GmbH Method of making a connection between an electrode and an electrical conductor

Also Published As

Publication number Publication date
ES2086434T3 (en) 1996-07-01
EP0521181B1 (en) 1996-02-28
DE59107483D1 (en) 1996-04-04

Similar Documents

Publication Publication Date Title
EP1391965B1 (en) Spring clamp terminal for electrical conductor
EP2505931B2 (en) Electric heating device with a plate element comprising conducting tracks and method for producing such a plate element
DE19825971C1 (en) Multipin electrical plug connector, e.g. for printed circuit board
DE2409075A1 (en) ELECTRIC CONNECTOR
EP0557744A1 (en) Thermostatic switch
DE69005126T2 (en) Electrical plug pin.
DE10257759A1 (en) Electrical connector with a housing and a high current contact
EP3446367B1 (en) Plug contact
DE102008014337B4 (en) Circuit board connectors and method of connecting circuit boards
EP0536523A2 (en) Terminal
EP0521181B1 (en) PTC heating device
DE2520884C3 (en) Device for applying a connecting piece made of insulating material to the two ends of the meandering area of a bimetallic strip
DE3433822C2 (en)
DE2609291C2 (en) Screwless connection terminal for power transmission from electrical conductors
EP1905130B1 (en) Contact spring in a support frame of an antenna amplifier of a vehicle
DE4241242A1 (en) Electrical condition sensor
EP0401330B1 (en) Plug-in quartz infrared radiator
EP1467597A2 (en) Heating apparatus
DE3932346C2 (en) Electrical connector
DE19945310C2 (en) Connectors
DE3435823A1 (en) SWITCH ARRANGEMENT WITH CONTACTS MOLDED INTO A CONTACT HOLDER
DE4110386C2 (en) Connectors
DE69407016T2 (en) Clamping device for electrical connection
DE2659904C2 (en) Remote control device
DE2757650C3 (en) Contact device for electrical switches

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU NL SE

17P Request for examination filed

Effective date: 19930125

17Q First examination report despatched

Effective date: 19940902

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE ES FR GB IT

ITF It: translation for a ep patent filed
REF Corresponds to:

Ref document number: 59107483

Country of ref document: DE

Date of ref document: 19960404

ET Fr: translation filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19960426

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2086434

Country of ref document: ES

Kind code of ref document: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20070720

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20070723

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20070718

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20080829

Year of fee payment: 18

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20080723

Year of fee payment: 18

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20090331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080731

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080703

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20080704

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080704

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20090703

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090703

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100202