DE102005037829A1 - Electric heating unit, has flat support covered with adhesive substance that is constituted partially or entirely by glue, and electric heating conductor connected on base surface of support by wires - Google Patents

Electric heating unit, has flat support covered with adhesive substance that is constituted partially or entirely by glue, and electric heating conductor connected on base surface of support by wires Download PDF

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Publication number
DE102005037829A1
DE102005037829A1 DE102005037829A DE102005037829A DE102005037829A1 DE 102005037829 A1 DE102005037829 A1 DE 102005037829A1 DE 102005037829 A DE102005037829 A DE 102005037829A DE 102005037829 A DE102005037829 A DE 102005037829A DE 102005037829 A1 DE102005037829 A1 DE 102005037829A1
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DE
Germany
Prior art keywords
adhesive substance
heating element
carrier
electric heating
element according
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.)
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Application number
DE102005037829A
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German (de)
Inventor
Volker Hunkert
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.)
Gentherm GmbH
Original Assignee
WET Automotive Systems AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by WET Automotive Systems AG filed Critical WET Automotive Systems AG
Priority to DE102005037829A priority Critical patent/DE102005037829A1/en
Priority to FR0601794A priority patent/FR2882884B1/en
Publication of DE102005037829A1 publication Critical patent/DE102005037829A1/en
Withdrawn legal-status Critical Current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 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
    • H05B3/342—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater flexible, e.g. heating nets or webs heaters used in textiles
    • 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
    • H05B2203/002—Heaters using a particular layout for the resistive material or resistive elements
    • H05B2203/004—Heaters using a particular layout for the resistive material or resistive elements using zigzag layout
    • 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

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Surface Heating Bodies (AREA)

Abstract

The heating unit has a flat support (1) covered with an adhesive substance (4) that is constituted partially or entirely by glue. An electric heating conductor (3) is connected on a base surface of the support by wires (6). The support is constituted of a perforated sheet and/or a textile unit permeable to air and/or to a liquid. The adhesive substance is reinforced around the support with a filling material.

Description

Die vorliegende Erfindung betrifft ein Heizelement nach dem Oberbegriff des Anspruchs 1.The The present invention relates to a heating element according to the preamble of claim 1.

Gattungsgemäße Heizelemente werden beispielsweise in Polster eingeschäumt. Dazu ist es erforderlich, das Heizelement an der Schaumform und/oder dem Polsterbezug zu befestigen. Hierzu werden z.B. Klebstoffe benutzt., die mehrmals aktivierbar sind (z.B. EP1217920), um eine Verklebung verschiedener Komponenten in mehreren Stufen zu erreichen. Auch eine Kombination mehrerer Klebstoffe ist bekannt (z.B. EP1049355).Generic heating elements are foamed, for example, in upholstery. For this it is necessary to attach the heating element to the foam mold and / or the upholstery cover. For this, e.g. Adhesives used, which can be activated several times are (e.g., EP1217920) to bond various components to reach in several stages. Also a combination of several Adhesives are known (e.g., EP1049355).

Die Handhabung geklebter Heizelemente ist jedoch nicht einfach, da die Polster-Schäumung in sehr kurzen Taktzeiten erfolgt, so daß die Einbringung des Heizelementes in die Form so schnell und einfach wie möglich erfolgen muß. Das Heizelement seinerseits muß möglichst durchlässig für den Schaum sein und darf den Schaumstoff nicht versteifen. Gleichzeitig muß es jedoch robust und fest genug für die Handhabung sein.The However, handling glued heating elements is not easy as the Padding-foaming takes place in very short cycle times, so that the introduction of the heating element into the mold as quickly and easily as possible. The heating element in turn must as possible permeable for the foam and must not stiffen the foam. But at the same time it has to sturdy and strong enough for to be handling.

Gegenstand der ErfindungSubject of the invention

Ein Heizelement nach Anspruch 1 ist einfach zu handhaben, da der Heizleiter unabhängig von der Befestigung an der Schäumform/dem Polsterbezug befestigt wird.One Heating element according to claim 1 is easy to handle, since the heating conductor independently from the attachment to the foam mold / the Cushion cover is attached.

Ein Heizelement nach Anspruch 2 ist besonders luftdurchlässig.One Heating element according to claim 2 is particularly permeable to air.

Ein Heizelement nach Anspruch 3 ist durch seine Material-Zusammensetzung besonders robust.One Heating element according to claim 3 is characterized by its material composition particularly robust.

Ein Heizelement mit den Merkmalen der Ansprüche 4 und 5 ist einfach herstellbar, da bei Normaltemperatur der Heizleiter einfach am noch nicht kleben den Träger angenäht werden kann und beim Einbringen des Trägers in die Polsterform der Träger seine zusammenhängende Struktur weitgehend verliert, so daß er das fertige Polster nicht mehr durch eine „Armierung" verhärten kann.One Heating element with the features of claims 4 and 5 is easy to prepare, because at normal temperature, the heating conductor simply does not stick to the carrier sewn can be and when inserting the carrier in the upholstery of the Carrier his related Structure largely loses, so that he does not have the finished upholstery harden more by a "reinforcement".

Bei einem Heizelement nach Anspruch 6 können Heizleiter auch mit einer Isolationsschicht versehen werden, welche eigentlich schlecht zum Kleben geeignet ist.at A heating element according to claim 6 can also heat conductor with a Insulation layer are provided, which actually bad for gluing suitable is.

Weitere vorteilhafte Ausgestaltungen sind den abhängigen Ansprüchen entnehmbar.Further advantageous embodiments are the dependent claims.

Figurencharacters

Im folgenden werden bevorzugte Ausführungsbeispiele des erfindungsgemäßen flächigen Heizelementes erläutert. Es zeigen:in the The following are preferred embodiments the planar heating element according to the invention explained. Show it:

1 Draufsicht auf ein Heizelement 1 Top view of a heating element

2 Draufsicht auf einen vergrößerten Teilbereich von 1 2 Top view of an enlarged portion of 1

3 Querschnitt durch ein Heizelement von 1 längs einer Nähnaht 3 Cross section through a heating element of 1 along a sewing seam

Beschreibungdescription

1 zeigt ein Heizelement 100 mit einem flächigen Träger 1. Der flächige Träger 1 weist im vorliegenden Ausführungsbeispiel ein Textil auf. Geeignet hierfür sind bspw. Gewirke oder Vliese. 1 shows a heating element 100 with a flat carrier 1 , The flat carrier 1 has a textile in the present embodiment. Suitable for this purpose are, for example, knitted or nonwoven fabrics.

Der flächige Träger 1 ist im vorliegenden Ausführungsbeispiel mit einer klebfähigen Substanz 4 überzogen. Die klebfähige Substanz 4 ist vorzugsweise im wesentlichen aus einem thermisch aktivierbaren Kleber gebildet. Hierfür ist bspw. Polyamid geeignet. Der Kleber ist bspw. durch Aufsprühen oder Tauchen so am flächigen Träger 1 angebracht, daß die im Textil des flächigen Trägers 1 vorhandenen Öffnungen im wesentlichen erhalten bleiben.The flat carrier 1 is in the present embodiment with an adhesive substance 4 overdrawn. The adhesive substance 4 is preferably formed essentially of a thermally activated adhesive. For this purpose, for example, polyamide is suitable. The adhesive is, for example, by spraying or dipping so on the flat carrier 1 attached that in the textile of the flat carrier 1 existing openings remain substantially preserved.

Alternativ zur hier vorliegenden Ausführung kann der flächige Träger jedoch auch selbst im wesentlichen aus der klebefähigen Substanz 4 gebildet sein. Für einen solchen Fall ist es günstig, die klebfähige Substanz mit Füllmaterial vorzugsweise in Form von Fasern zu vermischen, um den flächigen Träger 1 durch eine solche Armierung zumindest für die Zeit vor der Einbindung in ein Polster zu verstärken.As an alternative to the present embodiment, however, the flat carrier may also itself essentially consist of the adhesive substance 4 be formed. For such a case, it is favorable to mix the adhesive substance with filling material, preferably in the form of fibers, around the flat carrier 1 by reinforcing such reinforcement at least for the time before incorporation into a cushion.

Auf dem flächigen Träger 1 ist mindestens ein elektrischer Heizleiter 3 angeordnet. Er ist wellenförmig über die Grundfläche des flächigen Trägers 1 verlegt und im vorliegenden Ausführungsbeispiel mit ein oder mehreren Fäden 6, 6' am flächigen Träger 1 befestigt. Dies kann bspw. durch Nähen oder Wirken geschehen. Der Faden 6, 6'' hält den Heizleiter 3 wie in 2 gezeigt bspw. an den Amplituden-Maxima des vom Heizleiter 3 gebildeten Wellenzuges. Er könnte den Heizleiter jedoch entlang der Mittellinie des Wellenzuges fixieren oder den Heizleiter 3 zickzackförmig überlagern.On the flat carrier 1 is at least one electrical heating conductor 3 arranged. It is undulating over the base of the flat carrier 1 laid and in the present embodiment with one or more threads 6 . 6 ' on the flat carrier 1 attached. This can happen, for example, by sewing or knitting. The string 6 . 6 '' holds the heating conductor 3 as in 2 shown, for example, at the amplitude maxima of the heating conductor 3 formed wave train. However, he could fix the heating element along the center line of the wave train or the heating conductor 3 zigzag overlap.

Der Heizleiter 3 kann wie im Ausführungsbeispiel durch eine isolierte Edelstahllitze gebildet sein. Es ist jedoch auch der Einsatz von Karbonfasern, Kupferlitzen oder sonstigen strangartigen, elektrischen Leitern möglich.The heating conductor 3 can be formed as in the embodiment by an insulated stainless steel strand. However, it is also the use of carbon fibers, copper strands or other strand-like, electrical conductors possible.

Als Befestigungsmittel 2 ist außer einer nähtechnischen oder wirktechnischen Befestigung mittels Fäden 6, 6', 6'' auch ein Nieten, Crimpen, Tackern oder Einbetten des Heizleiters 3 in den flächigen Träger 1 denkbar.As a fastener 2 is except a sewing or technical fastening by means of threads 6 . 6 ' . 6 '' also a riveting, crimping, stapling or embedding the heat conductor 3 in the flat carrier 1 conceivable.

Als Material für die Fäden 6 wird besonders ein Faden aus natürlichen Fasern, wie bspw. Baumwolle oder Leinen, bevorzugt, da sich dieser anschließend bei Aktivierung der klebfähigen Substanz 4 durch seine natürliche Saugfähigkeit und rauhe Oberflächenbeschaffenheit gut mit der klebfähigen Substanz 4 verbindet.As material for the threads 6 For example, a thread made of natural fibers, such as cotton or linen, is particularly preferred since this subsequently becomes active upon activation of the adhesive substance 4 Due to its natural absorbency and rough surface texture it works well with the adhesive substance 4 combines.

Claims (7)

Heizelement (100) mit einem flächigen Träger (1) der zumindest an einer seiner beiden Oberflächen zumindest teilweise eine zumindest zeitweise klebefähige Substanz (4) aufweist und mit mindestens einem elektrischen Heizleiter (3), der auf der Grundfläche des Trägers (1) verlegt und am Träger (1) befestigt ist, dadurch gekennzeichnet, daß der Heizleiter (3) mit mindestens einem von der klebefähigen Substanz (4) verschiedenen Befestigungsmittel (2) an dem Träger (1) befestigt ist.Heating element ( 100 ) with a flat carrier ( 1 ) at least partially on at least one of its two surfaces an at least temporarily adhesive substance ( 4 ) and with at least one electrical heating conductor ( 3 ) placed on the base of the carrier ( 1 ) and on the carrier ( 1 ), characterized in that the heating conductor ( 3 ) with at least one of the adhesive substance ( 4 ) different fastening means ( 2 ) on the carrier ( 1 ) is attached. Heizelement nach Anspruch 1, dadurch gekennzeichnet, daß der flächige Träger (1) eine vorzugsweise gelochte Folie und/oder ein luft- und/oder flüssigkeitsdurchlässiges Textil aufweist, vorzugsweise ein Gewirke, ein Netz oder ein Vlies.Heating element according to claim 1, characterized in that the flat carrier ( 1 ) has a preferably perforated film and / or an air- and / or liquid-permeable textile, preferably a knitted fabric, a net or a nonwoven. Heizelement nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, daß die klebefähige Substanz (4) zumindest anteilig, vorzugsweise vollständig, aus einem thermisch aktivierbaren Kleber gebildet ist und/oder daß die klebefähige Substanz (4) zu einem Anteil von 0-50 aus einem Füllmaterial gebildet ist, vorzugsweise in Form von Fasern.Heating element according to one of the preceding claims, characterized in that the adhesive substance ( 4 ) is formed at least proportionally, preferably completely, from a thermally activatable adhesive and / or that the adhesive substance ( 4 ) is formed in a proportion of 0-50 from a filler material, preferably in the form of fibers. Heizelement nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, daß der Träger (1) zumindest teilweise – vorzugsweise zu mindestens 95 Gew.-%, vorzugsweise zu 99 Gew.-%, vorzugsweise im wesentlichen vollständig – aus der klebefähigen Substanz (4) gebildet ist.Heating element according to one of the preceding claims, characterized in that the carrier ( 1 ) at least partially - preferably at least 95 wt .-%, preferably to 99 wt .-%, preferably substantially completely - from the adhesive substance ( 4 ) is formed. Heizelement nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, daß der Heizleiter (3) am Träger (1) zumindest teilweise durch mindestens einen Faden (6, 6', 6''), vorzugsweise durch Nähen und/oder Wirken befestigt und vorzugsweise nicht geklebt ist.Heating element according to one of the preceding claims, characterized in that the heating conductor ( 3 ) on the carrier ( 1 ) at least partially by at least one thread ( 6 . 6 ' . 6 '' ), preferably fixed by sewing and / or knitting and preferably not glued. Heizelement nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, daß der Heizleiter (3) zumindest teilweise eine Oberfläche aufweist, an welcher der Kleber allenfalls geringfügig haftet, vorzugsweise aus Teflon, PFA, PTFE, FEP, PTL, PVC oder einem Material mit ähnlicher Oberfläche.Heating element according to one of the preceding claims, characterized in that the heating conductor ( 3 ) at least partially has a surface to which the adhesive adheres at most slightly, preferably of Teflon, PFA, PTFE, FEP, PTL, PVC or a material having a similar surface. Heizelement nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, daß die klebfähige Substanz (4) im wesentlichen unter Erhaltung von im Träger vorhandenen Öffnungen an diesem angeordnet ist.Heating element according to one of the preceding claims, characterized in that the adhesive substance ( 4 ) is arranged substantially in the preservation of existing in the carrier openings at this.
DE102005037829A 2005-03-02 2005-08-08 Electric heating unit, has flat support covered with adhesive substance that is constituted partially or entirely by glue, and electric heating conductor connected on base surface of support by wires Withdrawn DE102005037829A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE102005037829A DE102005037829A1 (en) 2005-03-02 2005-08-08 Electric heating unit, has flat support covered with adhesive substance that is constituted partially or entirely by glue, and electric heating conductor connected on base surface of support by wires
FR0601794A FR2882884B1 (en) 2005-03-02 2006-03-01 ELECTRIC HEATING ELEMENT

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102005010160 2005-03-02
DE102005010160.7 2005-03-02
DE102005037829A DE102005037829A1 (en) 2005-03-02 2005-08-08 Electric heating unit, has flat support covered with adhesive substance that is constituted partially or entirely by glue, and electric heating conductor connected on base surface of support by wires

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DE102005037829A1 true DE102005037829A1 (en) 2006-09-14

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DE102005037829A Withdrawn DE102005037829A1 (en) 2005-03-02 2005-08-08 Electric heating unit, has flat support covered with adhesive substance that is constituted partially or entirely by glue, and electric heating conductor connected on base surface of support by wires

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2052904A1 (en) 2007-10-25 2009-04-29 I.G. Bauerhin GmbH Heating element for vehicle seats or steering wheels and method of producing the heating element
DE102008043527A1 (en) * 2008-11-06 2010-05-20 Leibniz-Institut Für Polymerforschung Dresden E.V. Stretchable electrical heating element, useful for shaping fiber composite materials, is obtained by applying carbon fiber or metal rovings or cords to elastomeric support by embroidery
DE102008043525A1 (en) * 2008-11-06 2010-05-20 Leibniz-Institut Für Polymerforschung Dresden E.V. Composite heating element for molding fiber reinforced composite material utilized in highly-loadable component, has carbon fibers cords attached on carrier material to withstand stress and fixed on carrier material by textile technology
WO2024078652A1 (en) * 2022-10-13 2024-04-18 Gentherm Gmbh Heating element and method and device for producing a heating element

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2052904A1 (en) 2007-10-25 2009-04-29 I.G. Bauerhin GmbH Heating element for vehicle seats or steering wheels and method of producing the heating element
DE102007051421A1 (en) * 2007-10-25 2009-05-07 I.G. Bauerhin Gmbh Heating element for vehicle seats or steering wheels and method for producing the heating element
DE102008043527A1 (en) * 2008-11-06 2010-05-20 Leibniz-Institut Für Polymerforschung Dresden E.V. Stretchable electrical heating element, useful for shaping fiber composite materials, is obtained by applying carbon fiber or metal rovings or cords to elastomeric support by embroidery
DE102008043525A1 (en) * 2008-11-06 2010-05-20 Leibniz-Institut Für Polymerforschung Dresden E.V. Composite heating element for molding fiber reinforced composite material utilized in highly-loadable component, has carbon fibers cords attached on carrier material to withstand stress and fixed on carrier material by textile technology
WO2024078652A1 (en) * 2022-10-13 2024-04-18 Gentherm Gmbh Heating element and method and device for producing a heating element

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R081 Change of applicant/patentee

Owner name: GENTHERM GMBH, DE

Free format text: FORMER OWNER: W.E.T. AUTOMOTIVE SYSTEMS AG, 85235 ODELZHAUSEN, DE

R119 Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee