EP0532902A1 - Pliant planer heating element - Google Patents

Pliant planer heating element Download PDF

Info

Publication number
EP0532902A1
EP0532902A1 EP92113660A EP92113660A EP0532902A1 EP 0532902 A1 EP0532902 A1 EP 0532902A1 EP 92113660 A EP92113660 A EP 92113660A EP 92113660 A EP92113660 A EP 92113660A EP 0532902 A1 EP0532902 A1 EP 0532902A1
Authority
EP
European Patent Office
Prior art keywords
carrier
heating element
layers
heating
heating conductor
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.)
Withdrawn
Application number
EP92113660A
Other languages
German (de)
French (fr)
Inventor
Klaus Dipl.-Ing. Wetzel
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.)
Wilhelm Wetzel and Co GmbH
Original Assignee
Wilhelm Wetzel and Co 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 Wilhelm Wetzel and Co GmbH filed Critical Wilhelm Wetzel and Co GmbH
Publication of EP0532902A1 publication Critical patent/EP0532902A1/en
Withdrawn legal-status Critical Current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
    • H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
    • H05B3/34—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater flexible, e.g. heating nets or webs
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/014—Heaters using resistive wires or cables not provided for in H05B3/54
    • 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
    • H05B2203/029—Heaters specially adapted for seat warmers

Definitions

  • the invention relates to a flexible surface heating element which has a sheet-like or web-shaped flexible carrier and an electrical heating conductor attached to the carrier, the heating conductor being provided with electrical connections.
  • Supple electrical surface heating elements are used for heating vehicle seats, as underblankets, as heating pads, as heating blankets and for other purposes in which the heating element should be three-dimensionally deformable.
  • the invention has for its object to provide a flexible electrical surface heating element that has all the properties required for practical use and is also recyclable, d. H. whose individual parts can be easily separated from one another after the normal operating time and can be used again.
  • the carrier consists of material that can be reused without any problems.
  • the Carrier made of two or more layers of cotton fabric, which is recyclable.
  • the heat conductor can be attached to the carrier material in a thermally detachable manner, for example by means of hot-melt adhesive.
  • the individual layers of the carrier are made of cotton, these are expediently glued to one another with a hot-melt adhesive which can be softened again under the action of heat, so that the individual layers of the carrier can generally be easily separated from one another for removing the meandering heating conductor.
  • a hot-melt adhesive whose softening temperature is higher than the temperature generated by the heating conductor during operation, but which, on the other hand, does not have a too high softening point in order to be able to detach the layers of the carrier held together with it without excessive thermal energy expenditure.
  • the heating conductor is still functional after it has been separated from the carrier, it can be part of a new flexible electrical surface heating element. If the functionality is no longer guaranteed, the heating conductor can be easily detached from its electrical connections, which may also include trench junctions, for example, desoldering, so that the electrical connections and the actual heating wire can be disposed of separately, for example melted down.
  • the carrier can also be formed from polyester textile material, which can be easily melted down for reuse.
  • the melting point of polyester is below the temperature at which the heating conductor becomes damaged or inoperable, so that the heating conductor and carrier material can be separated from one another in a simple manner by melting the polyester. If the heating conductor is entangled with polyester threads or if such threads are incorporated in any other way, one is Disposal also possible by melting the polyester.
  • the invention thus creates a supple electrical flat heating element that can be used for a wide variety of applications and that is completely recyclable because it consists of practically only two materials, namely the carrier material and the actual heat conductor with the connections. Both components can be easily reused.
  • the surface heating element according to the invention is therefore particularly well suited for vehicle seats. For vehicles, there has recently been a requirement that the vehicles and their parts have to be taken back and disposed of by the original manufacturer after the period of use.
  • the surface heating element consists of an approximately rectangular support 1 and an electrical heating conductor 2 made of heating wire or heating cord, the heating conductor 2 being laid in a meandering shape, as shown in FIG. 1.
  • socket-shaped electrical connections 3 and 4 are fastened to the carrier, via which electrical energy can be supplied to the heating conductor 2 connected to the latter.
  • the carrier 1 consists of two web-shaped layers 5 and 6 made of flexible textile material such as cotton or polyester, both layers 5 and 6 each consisting of the same material. These layers 5 and 6 are attached to each other with interruptions in the illustrated embodiment with interruptions, so that channels 7 form, in which the heating conductor 2 is loose. By cutting the channels 7, it is possible to separate the heating conductor 2 from the carrier 1, so that both components can be used independently of one another.
  • the socket-shaped electrical connections 3 and 4 of the heating conductor 2 are anchored in the illustrated embodiment to a flexible band-shaped strip 8, which is arranged between the layers 5 and 6 and connected to this.
  • the strip 8 consists of the same material as the layers 5 and 6. It remains connected to this heating conductor when the heating conductor 2 is used again for a surface heating element. Only when the heating conductor is finally disposed of by melting it is disconnected from the heating conductor beforehand, just as connections 3 and 4 are separated from the heating conductor, for example unsoldered, before being recycled.

Landscapes

  • Resistance Heating (AREA)
  • Surface Heating Bodies (AREA)

Abstract

A flexible electrical flat heating element is disclosed which has a flexible carrier (1) in the form of a web and an electrical heating conductor (2) which is arranged on the carrier, the heating conductor being provided with electrical connections (3,4). The carrier (1) is constructed in at least two layers. The heating conductor (2) is arranged between two layers (5,6) of the carrier (1), which layers are located one on top of the other, are connected to one another and consist of the same material, which can be re-used easily. The heating conductor (2) is arranged detachably on the carrier (1) so that it can be re-used or disposed of separately from the carrier. <IMAGE>

Description

Die Erfindung betrifft ein schmiegsames Flächenheizelement, das einen blatt- oder bahnförmigen flexiblen Träger und einen an dem Träger angebrachten elektrischen Heizleiter aufweist, wobei der Heizleiter mit elektrischen Anschlüssen versehen ist.The invention relates to a flexible surface heating element which has a sheet-like or web-shaped flexible carrier and an electrical heating conductor attached to the carrier, the heating conductor being provided with electrical connections.

Schmiegsame elektrische Flächenheizelemente werden zum Beheizen von Fahrzeugsitzen, als Wärmeunterbetten, als Heizkissen, als Heizdecken und für sonstige Zwecke benutzt, bei denen das Wärmeelement dreidimensional verformbar sein soll.Supple electrical surface heating elements are used for heating vehicle seats, as underblankets, as heating pads, as heating blankets and for other purposes in which the heating element should be three-dimensionally deformable.

Bei bekannten schmiegsamen elektrischen Flächenheizelementen (EP-B-0 192 155 und DE-C-30 13 778) hat man stets nur auf eine vorteilhafte und preisgünstige Herstellung geachtet, nicht jedoch berücksichtigt, ob diese Flächenheizelemente nach Beendigung ihres Gebrauchs preisgünstig entsorgt werden können, d. h. also recyclefähig sind, wie in jüngerer Zeit verlangt.In the case of known flexible electrical surface heating elements (EP-B-0 192 155 and DE-C-30 13 778), attention has always only been paid to advantageous and inexpensive production, but no consideration has been given to whether these surface heating elements can be disposed of inexpensively after their use has ended, d. H. are recyclable, as required recently.

Der Erfindung liegt die Aufgabe zugrunde, ein schmiegsames elektrisches Flächenheizelement zu schaffen, das alle für den praktischen Gebrauch geforderten Eigenschaften aufweist und zudem recyclebar ist, d. h. dessen Einzelteile nach Beendigung der normalen Betriebszeit einfach voneinander getrennt und einer neuen Verwendung zugeführt werden können.The invention has for its object to provide a flexible electrical surface heating element that has all the properties required for practical use and is also recyclable, d. H. whose individual parts can be easily separated from one another after the normal operating time and can be used again.

Diese Aufgabe wird erfindungsgemäß mit einem Flächenheizelement der eingangs genannten Gattung gelöst, welches die Merkmale des kennzeichnenden Teiles des Schutzanspruches 1 aufweist. Vorteilhafte Ausgestaltungen und Ausführungsformen der Erfindung sind Gegenstand der Unteransprüche.This object is achieved with a surface heating element of the type mentioned, which has the features of the characterizing part of protection claim 1. Advantageous refinements and embodiments of the invention are the subject of the dependent claims.

Bei dem erfindungsgemäßen Flächenheizelement besteht der Träger aus Material, das problemlos wiederverwendbar ist. Beispielsweise besteht der Träger aus zwei oder mehr Schichten aus Baumwollgewebe, welches wiederverwertbar ist. Dabei kann der Heizleiter thermisch lösbar am Trägermaterial befestigt, beispielsweise mit Hilfe von Heißschmelzkleber angeklebt sein. Alternativ ist es auch möglich, den Heizleiter oder Heizdraht zwischen den beiden Lagen des Trägers in vorgesehenen Kanälen lose einzulegen, so daß man durch Öffnen dieser Kanäle den Heizleiter vom Träger trennen und für eine erneute Verwendung einsetzen oder aber endgültig entsorgen kann.In the surface heating element according to the invention, the carrier consists of material that can be reused without any problems. For example, the Carrier made of two or more layers of cotton fabric, which is recyclable. The heat conductor can be attached to the carrier material in a thermally detachable manner, for example by means of hot-melt adhesive. Alternatively, it is also possible to loosely insert the heating conductor or heating wire between the two layers of the carrier in the channels provided, so that the heating conductor can be separated from the carrier by opening these channels and used for reuse or finally disposed of.

Bestehen die einzelnen Lagen des Trägers aus Baumwolle, so werden diese zweckmäßig mit einem Heißschmelzkleber untereinander verklebt, der sich unter Wärmeeinwirkung wieder erweichen läßt, so daß man die einzelnen Lagen des Trägers zum Herausnehmen des mäanderförmig verlegten Heizleiters im allgemeinen leicht voneinander lösen kann.If the individual layers of the carrier are made of cotton, these are expediently glued to one another with a hot-melt adhesive which can be softened again under the action of heat, so that the individual layers of the carrier can generally be easily separated from one another for removing the meandering heating conductor.

Es ist dabei bevorzugt, einen Heißschmelzkleber zu verwenden, dessen Erweichungstemperatur höher als die von dem Heizleiter im Betrieb erzeugte Temperatur ist, der andererseits aber keinen allzu hohen Erweichungspunkt hat, um die Lagen des mit ihm zusammengehaltenen Trägers ohne allzugroßen Wärmeenergieaufwand voneinander lösen zu können.It is preferred to use a hot-melt adhesive whose softening temperature is higher than the temperature generated by the heating conductor during operation, but which, on the other hand, does not have a too high softening point in order to be able to detach the layers of the carrier held together with it without excessive thermal energy expenditure.

Ist der Heizleiter nach der Trennung vom Träger noch funktionsfähig, kann er Teil eines neuen schmiegsamen elektrischen Flächenheizelementes sein. Sollte die Funktionsfähigkeit nicht mehr gewährleistet sein, läßt sich der Heizleiter von seinen elektrischen Anschlüssen, zu denen auch gegebenenfalls Grabenübergänge gehören, leicht lösen, beispielsweise ablöten, so daß die elektrischen Anschlüsse und der eigentliche Heizdraht getrennt voneinander entsorgt, beispielsweise eingeschmolzen, werden können.If the heating conductor is still functional after it has been separated from the carrier, it can be part of a new flexible electrical surface heating element. If the functionality is no longer guaranteed, the heating conductor can be easily detached from its electrical connections, which may also include trench junctions, for example, desoldering, so that the electrical connections and the actual heating wire can be disposed of separately, for example melted down.

Der Träger kann jedoch auch aus Polyester-Textilmaterial gebildet sein, das sich für eine Wiederverwendung problemlos einschmelzen läßt. Der Schmelzpunkt von Polyester liegt unter der Temperatur, bei welcher der Heizleiter beschädigt oder funktionsunfähig wird, so daß Heizleiter und Trägermaterial durch Abschmelzen des Polyesters in einfacher Weise voneinander getrennt werden können. Ist der Heizleiter mit Polyesterfäden verstrickt oder sind sonstwie derartige Fäden eingearbeitet, ist eine Entsorgung ebenfalls durch Ausschmelzen des Polyesters problemlos möglich.However, the carrier can also be formed from polyester textile material, which can be easily melted down for reuse. The melting point of polyester is below the temperature at which the heating conductor becomes damaged or inoperable, so that the heating conductor and carrier material can be separated from one another in a simple manner by melting the polyester. If the heating conductor is entangled with polyester threads or if such threads are incorporated in any other way, one is Disposal also possible by melting the polyester.

Durch die Erfindung wird also ein schmiegsames elektrisches Flächheizelement geschaffen, das für die verschiedensten Anwendungszwecke genutzt werden kann und das vollständig recyclebar ist, weil es praktisch nur aus zwei Materialien besteht, nämlich dem Trägermaterial und dem eigentlichen Heizleiter mit den Anschlüssen. Beide Komponenten können problemlos einer Wiederverwendung zugeführt werden. Das erfindungsgemäße Flächenheizelement eignet sich daher besonders gut für Fahrzeugsitze. Für Fahrzeuge besteht in jüngerer Zeit die Forderung, daß nach Ablauf der Gebrauchszeit die Fahrzeuge und deren Teile vom ursprünglichen Hersteller zurückgenommen und entsorgt werden müssen.The invention thus creates a supple electrical flat heating element that can be used for a wide variety of applications and that is completely recyclable because it consists of practically only two materials, namely the carrier material and the actual heat conductor with the connections. Both components can be easily reused. The surface heating element according to the invention is therefore particularly well suited for vehicle seats. For vehicles, there has recently been a requirement that the vehicles and their parts have to be taken back and disposed of by the original manufacturer after the period of use.

In der Zeichnung ist ein Ausführungsbeispiel eines erfindungsgemäßen schmiegsamen elektrischen Flächenheizelementes schematisch dargestellt, und zwar zeigt

Figur 1
eine Draufsicht auf das Flächenheizelement und
Figur 2
einen Teilschnitt des Flächenheizelementes nach Linie II-II aus Figur 1, jedoch gegenüber Figur 1 im vergrößerten Maßstab.
In the drawing, an embodiment of a flexible electrical surface heating element according to the invention is shown schematically, namely shows
Figure 1
a plan view of the surface heating element and
Figure 2
a partial section of the surface heating element according to line II-II of Figure 1, but compared to Figure 1 on an enlarged scale.

Das Flächenheizelement besteht gemäß Figur 1 aus einem etwa rechteckigen Träger 1 und einem elektrischen Heizleiter 2 aus Heizdraht oder Heizkordel, wobei der Heizleiter 2 mäanderförmig verlegt ist, wie Figur 1 zeigt.According to FIG. 1, the surface heating element consists of an approximately rectangular support 1 and an electrical heating conductor 2 made of heating wire or heating cord, the heating conductor 2 being laid in a meandering shape, as shown in FIG. 1.

Nahe der in Figur 1 gesehenen linken Stirnkante des Trägers 1 sind buchsenförmige elektrische Anschlüsse 3 und 4 am Träger befestigt, über die dem mit diesen verbundenen Heizleiter 2 elektrische Energie zugeführt werden kann.Near the left end edge of the carrier 1, as seen in FIG. 1, socket-shaped electrical connections 3 and 4 are fastened to the carrier, via which electrical energy can be supplied to the heating conductor 2 connected to the latter.

Wie insbesondere Figur 2 zeigt, besteht der Träger 1 aus zwei bahnförmigen Lagen 5 und 6 aus flexiblen Textilmaterial wie Baumwolle oder Polyester, wobei beide Lagen 5 und 6 jeweils aus demselben Material bestehen. Diese Lagen 5 und 6 sind beim dargestellten Ausführungsbeispiel mit Unterbrechungen aufeinanderliegend andereinander befestigt, so daß sich Kanäle 7 bilden, in denen der Heizleiter 2 lose liegt. Durch Aufschneiden der Kanäle 7 ist es möglich, den Heizleiter 2 vom Träger 1 zu trennen, um beide Komponenten unabhängig von einander einer neuen Verwendung zuführen zu können.As shown in Figure 2 in particular, the carrier 1 consists of two web-shaped layers 5 and 6 made of flexible textile material such as cotton or polyester, both layers 5 and 6 each consisting of the same material. These layers 5 and 6 are attached to each other with interruptions in the illustrated embodiment with interruptions, so that channels 7 form, in which the heating conductor 2 is loose. By cutting the channels 7, it is possible to separate the heating conductor 2 from the carrier 1, so that both components can be used independently of one another.

Die buchsenförmigen elektrischen Anschlüssen 3 und 4 des Heizleiters 2 sind beim dargestellten Ausführungsbeispiel an einem flexiblen bandförmigen Streifen 8 verankert, der zwischen den Lagen 5 und 6 angeordnet und mit diesem verbunden ist. Der Streifen 8 besteht aus demselben Material wie die Lagen 5 und 6. Er bleibt bei erneuter Verwendung des Heizleiters 2 für ein Flächenheizelement mit diesem Heizleiter verbunden. Nur bei endgültiger Entsorgung des Heizleiters durch Einschmelzen wird er zuvor vom Heizleiter getrennt, ebenso wie die Anschlüsse 3 und 4 vom Heizleiter getrennt, beispielsweise abgelötet, werden, bevor eine Wiederverwertung folgt.The socket-shaped electrical connections 3 and 4 of the heating conductor 2 are anchored in the illustrated embodiment to a flexible band-shaped strip 8, which is arranged between the layers 5 and 6 and connected to this. The strip 8 consists of the same material as the layers 5 and 6. It remains connected to this heating conductor when the heating conductor 2 is used again for a surface heating element. Only when the heating conductor is finally disposed of by melting it is disconnected from the heating conductor beforehand, just as connections 3 and 4 are separated from the heating conductor, for example unsoldered, before being recycled.

Claims (8)

Schmiegsames elektrisches Flächenheizelement, mit einem blatt-oder bahnförmigen flexiblen Träger und einem an dem Träger angebrachten elektrischen Heizleiter, wobei der Heizleiter mit elektrischen Anschlüssen versehen ist, dadurch gekennzeichnet, daß der Träger (1) wenigstens zweilagig ausgebildet und der Heizleiter (2) zwischen zwei aus demselben und einfach wiederverwendbarem Material bestehenden aufeinander liegenden und miteinander verbundenen Lagen (5, 6) des Trägers (1) von diesem lösbar und wiederverwendbar angeordnet ist.Flexible electrical surface heating element, with a sheet-like or web-shaped flexible carrier and an electrical heating conductor attached to the carrier, the heating conductor being provided with electrical connections, characterized in that the carrier (1) has at least two layers and the heating conductor (2) between two layers (5, 6) of the carrier (1), which lie on top of one another and are connected to one another and are made of the same and easily reusable material, are arranged so that they can be detached and reused. Heizelement nach Anspruch 1, dadurch gekennzeichnet, daß die Lagen (5, 6) des Trägers (1) mittels Heißschmelzkleber miteinander verbunden sind.Heating element according to claim 1, characterized in that the layers (5, 6) of the carrier (1) are connected to one another by means of hot-melt adhesive. Heizelement nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Lagen (5, 6) des Trägers (1) aus Baumwolle bestehen.Heating element according to claim 1 or 2, characterized in that the layers (5, 6) of the carrier (1) consist of cotton. Heizelement nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Lagen (5, 6) des Trägers (1) aus Baumwollgewebe bestehen.Heating element according to one of claims 1 to 3, characterized in that the layers (5, 6) of the carrier (1) consist of cotton fabric. Heizelement nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die elektrischen Anschlüsse (3, 4) des Heizleiters (2) an einem zwischen benachbarten Lagen (5, 6) des Trägers (1) vorgesehenen bandförmigen Halter angeordnet sind.Heating element according to one of claims 1 to 4, characterized in that the electrical connections (3, 4) of the heating conductor (2) are arranged on a band-shaped holder provided between adjacent layers (5, 6) of the carrier (1). Heizelement nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß der Heizleiter (2) in Kanälen (7) lose zwischen benachbarten Lagen (5, 6) des Trägers (1) angeordnet ist.Heating element according to one of claims 1 to 5, characterized in that the heating conductor (2) is loosely arranged in channels (7) between adjacent layers (5, 6) of the carrier (1). Heizelement nach Anspruch 1, dadurch gekennzeichnet, daß die Lagen (5, 6) des Trägers (1) aus Polyester bestehen und aneinander durch Heißschmelzen ihres Materials befestigt sind.Heating element according to claim 1, characterized in that the layers (5, 6) of the carrier (1) consist of polyester and are attached to one another by hot-melting their material. Heizelement nach Anspruch 7, dadurch gekennzeichnet, daß die Heizleiter (2) in ein Gestrick oder Gewirk aus Polyester-Fäden eingearbeitet sind.Heating element according to claim 7, characterized in that the heating conductors (2) are worked into a knitted or knitted fabric made of polyester threads.
EP92113660A 1991-09-14 1992-08-11 Pliant planer heating element Withdrawn EP0532902A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9111481U DE9111481U1 (en) 1991-09-14 1991-09-14 Flexible surface heating element
DE9111481U 1991-09-14

Publications (1)

Publication Number Publication Date
EP0532902A1 true EP0532902A1 (en) 1993-03-24

Family

ID=6871296

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92113660A Withdrawn EP0532902A1 (en) 1991-09-14 1992-08-11 Pliant planer heating element

Country Status (2)

Country Link
EP (1) EP0532902A1 (en)
DE (1) DE9111481U1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6064037A (en) * 1997-06-03 2000-05-16 W.E.T. Automotive System A.G. Air-permeable heating device for a seat

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2785138A1 (en) * 1998-10-22 2000-04-28 Morel Jean Jacques Electrically heated rug, has one or more very low voltage elements of mechanically robust conductor secured between fabric sheets protected by outer textile layers

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2639347A1 (en) * 1976-09-01 1978-03-02 Joachim Ruhnau Electrically heated carpet or artificial grass mat - has electrically and thermally insulating backing beneath heating mesh or foil
DE2908576A1 (en) * 1979-03-05 1980-09-11 Kabel Metallwerke Ghh Planar electric heating element - with zigzag loops embedded between two plastic fibre mats, used e.g. for car seats
DE3013778C2 (en) * 1980-04-10 1982-03-11 I.G. Bauerhin GmbH elektro-technische Fabrik, 6466 Gründau Ironing press for integrating a heating conductor
WO1984004221A1 (en) * 1983-04-15 1984-10-25 Mekania Verken Ab Heating pad preferably for car seats
DE3003660C2 (en) * 1980-02-01 1988-01-14 Kabelmetal Electro Gmbh, 3000 Hannover, De
EP0192155B1 (en) * 1985-02-19 1991-06-19 I.G. Bauerhin GmbH elektro-technische Fabrik Method for fabrication of a heating element for electrical heating, particularly of vehicle seats

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2639347A1 (en) * 1976-09-01 1978-03-02 Joachim Ruhnau Electrically heated carpet or artificial grass mat - has electrically and thermally insulating backing beneath heating mesh or foil
DE2908576A1 (en) * 1979-03-05 1980-09-11 Kabel Metallwerke Ghh Planar electric heating element - with zigzag loops embedded between two plastic fibre mats, used e.g. for car seats
DE3003660C2 (en) * 1980-02-01 1988-01-14 Kabelmetal Electro Gmbh, 3000 Hannover, De
DE3013778C2 (en) * 1980-04-10 1982-03-11 I.G. Bauerhin GmbH elektro-technische Fabrik, 6466 Gründau Ironing press for integrating a heating conductor
WO1984004221A1 (en) * 1983-04-15 1984-10-25 Mekania Verken Ab Heating pad preferably for car seats
EP0192155B1 (en) * 1985-02-19 1991-06-19 I.G. Bauerhin GmbH elektro-technische Fabrik Method for fabrication of a heating element for electrical heating, particularly of vehicle seats

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6064037A (en) * 1997-06-03 2000-05-16 W.E.T. Automotive System A.G. Air-permeable heating device for a seat

Also Published As

Publication number Publication date
DE9111481U1 (en) 1991-11-21

Similar Documents

Publication Publication Date Title
DE3587861T2 (en) Flexible electrical connectors.
DE2802654B2 (en) Attachment of a semiconductor plate to a lapping disc
DE3686518T2 (en) SELF-HEATING AND SELF-SOLDERING BUSBAR.
DE4132720A1 (en) CHIP CARD AND METHOD FOR THE PRODUCTION THEREOF
DE4039537A1 (en) FUSE HOLDER ARRANGEMENT
EP0532902A1 (en) Pliant planer heating element
DE3212295A1 (en) Process for joining two surfaces of sheets
DE2716305A1 (en) SCREEN PRINTED FRAME
EP0303128B1 (en) Transport and/or work bench with a support for sheet-like objects
DE1954954A1 (en) Method and device for connecting carpets, carpets or the like.
DE4010743C2 (en) Organic thermistor with positive temperature coefficient
DE8625683U1 (en) Cleaning aid made of a needled textile felt with thermo-plastic component in the fibre fabric
EP2052904B1 (en) Heating element for vehicle seats or steering wheels and method of producing the heating element
DE2251207A1 (en) Fabric heating - using conductive strip knitted into non-conductive fabric
DE8514440U1 (en) Fluctuation document
DE69319015T2 (en) Electrically conductive bundle of fibers in web form
EP3834257B1 (en) Method for producing an electric contact
DE29902911U1 (en) Pocket spring core
DE19620681A1 (en) Burr fastener tape
DE1564468C (en) Process for producing solder connections between winding ends and connecting pins in an electrical coil
DE1990239U (en) Photoelectric barrier
DE3141864C2 (en)
DE1615160C (en) Additional electrical heating for radiators
DE2312252C3 (en) Resistance heating element, especially for resistance heating of bimetal strips
DE7602388U1 (en) Heating fan resistance

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 DE ES FR GB IE IT PT SE

RBV Designated contracting states (corrected)

Designated state(s): AT DE ES FR GB IT PT SE

17P Request for examination filed

Effective date: 19930917

17Q First examination report despatched

Effective date: 19941228

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

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19950711