EP0532902A1 - Elément de chauffage souple en forme plane - Google Patents

Elément de chauffage souple en forme plane Download PDF

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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Withdrawn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)
English (en)
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/fr
Withdrawn legal-status Critical Current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
    • H05B3/20—Heating elements having extended surface area substantially in a two-dimensional [2D] plane, e.g. plate-heater
    • H05B3/34—Heating elements having extended surface area substantially in a two-dimensional [2D] 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)
EP92113660A 1991-09-14 1992-08-11 Elément de chauffage souple en forme plane Withdrawn EP0532902A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9111481U DE9111481U1 (de) 1991-09-14 1991-09-14 Schmiegsames Flächenheizelement
DE9111481U 1991-09-14

Publications (1)

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

Family

ID=6871296

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92113660A Withdrawn EP0532902A1 (fr) 1991-09-14 1992-08-11 Elément de chauffage souple en forme plane

Country Status (2)

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

Cited By (2)

* 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
RU2215379C2 (ru) * 2000-11-13 2003-10-27 Резвых Лариса Валентиновна Электрический нагреватель с проволочным выводом

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2785138A1 (fr) * 1998-10-22 2000-04-28 Morel Jean Jacques Dispositif chauffant electrique comportant une nappe chauffante

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2639347A1 (de) * 1976-09-01 1978-03-02 Joachim Ruhnau Verfahren und anwendung zur herstellung von elektrisch beheizbaren teppichen, matten, vorlegern sowie im freien liegenden kunstgrasflaechen etc.
DE2908576A1 (de) * 1979-03-05 1980-09-11 Kabel Metallwerke Ghh Flaechenfoermiges heizelement
DE3013778C2 (de) * 1980-04-10 1982-03-11 I.G. Bauerhin GmbH elektro-technische Fabrik, 6466 Gründau Bügelpresse zur Einbindung eines Heizleiters
WO1984004221A1 (fr) * 1983-04-15 1984-10-25 Mekania Verken Ab Coussin de chauffage de preference pour sieges de voiture
DE3003660C2 (fr) * 1980-02-01 1988-01-14 Kabelmetal Electro Gmbh, 3000 Hannover, De
EP0192155B1 (fr) * 1985-02-19 1991-06-19 I.G. Bauerhin GmbH elektro-technische Fabrik Méthode de fabrication d'un élément de chauffage électrique, en particulier pour siège de véhicule

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2639347A1 (de) * 1976-09-01 1978-03-02 Joachim Ruhnau Verfahren und anwendung zur herstellung von elektrisch beheizbaren teppichen, matten, vorlegern sowie im freien liegenden kunstgrasflaechen etc.
DE2908576A1 (de) * 1979-03-05 1980-09-11 Kabel Metallwerke Ghh Flaechenfoermiges heizelement
DE3003660C2 (fr) * 1980-02-01 1988-01-14 Kabelmetal Electro Gmbh, 3000 Hannover, De
DE3013778C2 (de) * 1980-04-10 1982-03-11 I.G. Bauerhin GmbH elektro-technische Fabrik, 6466 Gründau Bügelpresse zur Einbindung eines Heizleiters
WO1984004221A1 (fr) * 1983-04-15 1984-10-25 Mekania Verken Ab Coussin de chauffage de preference pour sieges de voiture
EP0192155B1 (fr) * 1985-02-19 1991-06-19 I.G. Bauerhin GmbH elektro-technische Fabrik Méthode de fabrication d'un élément de chauffage électrique, en particulier pour siège de véhicule

Cited By (2)

* 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
RU2215379C2 (ru) * 2000-11-13 2003-10-27 Резвых Лариса Валентиновна Электрический нагреватель с проволочным выводом

Also Published As

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

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Effective date: 19930917

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Effective date: 19941228

18D Application deemed to be withdrawn

Effective date: 19950711