EP2844030B1 - Heating fabric - Google Patents

Heating fabric Download PDF

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Publication number
EP2844030B1
EP2844030B1 EP14184186.6A EP14184186A EP2844030B1 EP 2844030 B1 EP2844030 B1 EP 2844030B1 EP 14184186 A EP14184186 A EP 14184186A EP 2844030 B1 EP2844030 B1 EP 2844030B1
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EP
European Patent Office
Prior art keywords
heating
electrically conductive
fabric
threads
conductive threads
Prior art date
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Active
Application number
EP14184186.6A
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German (de)
French (fr)
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EP2844030A1 (en
Inventor
Ivo Locher
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Sefar AG
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Sefar AG
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Filing date
Publication date
Application filed by Sefar AG filed Critical Sefar AG
Priority to DK14184186.6T priority Critical patent/DK2844030T3/en
Priority to EP14184186.6A priority patent/EP2844030B1/en
Priority to ES14184186.6T priority patent/ES2559477T3/en
Priority to HUE14184186A priority patent/HUE027455T2/en
Priority to PL14184186T priority patent/PL2844030T3/en
Publication of EP2844030A1 publication Critical patent/EP2844030A1/en
Application granted granted Critical
Publication of EP2844030B1 publication Critical patent/EP2844030B1/en
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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
    • H05B3/347—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 woven fabrics
    • 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
    • H05B2203/006—Heaters using a particular layout for the resistive material or resistive elements using interdigitated electrodes
    • 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
    • H05B2203/011—Heaters using laterally extending conductive material as connecting means
    • 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
    • H05B2203/015—Heater wherein the heating element is interwoven with the textile

Definitions

  • the invention relates to a heating fabric according to the preamble of claim 1.
  • a heating fabric comprises threads running in the warp direction and in the weft direction, at least part of the threads being designed as electrically conductive threads.
  • Heating fabric of this type are used for example for seat heaters in vehicles.
  • a voltage is applied to the electrically conductive threads.
  • the electrical resistance of the filaments generates heat that is used to heat the seat.
  • a generic heating fabric with woven electrically conductive threads goes out of the US 2011/278282 A1 out.
  • the conductive filaments as heat conductors for heat generation extend in parallel in a width direction between two longitudinally extending lead wires of different polarity.
  • the pigtails are arranged on opposite sides of the heating area, which is traversed by the heating conductors.
  • the electrically conductive threads can be arranged in different ways. For example, it is known to guide at least one electrically conductive thread as a heating wire meandering along the Schugewebes. However, there is the problem here that with a severing of the filament, the heating effect over a large area.
  • a heating element with a meander-shaped heating wire arrangement is known from WO 2006/054853 A1 known.
  • a surface heating element with a plurality of each consisting of a group of electrically conductive filaments heating bands, which are interconnected via plate-shaped connecting means is in the EP 1 835 786 A1 described.
  • the interconnection of the individual heating strips also results in a substantially meander-shaped course, whereby targeted areas with heating power and without heating power can be created.
  • connection strands with comb-like supply lines of a resistive ink are applied to a flexible substrate.
  • the invention has for its object to provide a heating fabric, which provides a reliable heating effect and is flexibly dimensioned.
  • a first basic idea of the invention can be seen in the fact that a pigtail, which serves to connect the electrically conductive threads to a voltage source, is introduced into the heating fabric.
  • the pigtail extends along a surface formed by the heating fabric, that is to say in the plane formed by the heating fabric.
  • the pigtail may be incorporated into the tissue or applied to a tissue surface.
  • the pigtail is conductively connected to at least a portion of the electrically conductive strands to connect the electrically conductive strands to the voltage source.
  • the connecting leads which can also be referred to as connection electrodes, serve for the common connection of the electrically conductive threads to the voltage source.
  • a preferred embodiment of the invention is to form the heating fabric in the pigtail as a hollow fabric.
  • the hollow tissue section comprises at least two separate layers of fabric and a channel-shaped cavity extending between the layers of fabric in a longitudinal direction along the fabric.
  • the pigtail extends along the longitudinal direction of the hollow tissue section or the cavity.
  • two mutually insulated or isolatable tissue areas are provided.
  • electrically conductive threads Crossing the pigtail without contacting by the pigtail is disposed on one of the fabric layers and extend the electrically conductive threads on the respective other fabric layer.
  • a portion of the electrically conductive threads or one of the pigtail opposite end of an electrically conductive thread can be performed on the pigtail over to a mutual-pole voltage connection.
  • the fabric is preferably designed as a single layer.
  • the heating fabric is preferably designed as a single layer on both sides of the longitudinally extending hollow fabric section.
  • threads are understood as meaning all linear, textile structures which can be processed into fabrics, in particular yarns, wires and mono- and multifilaments
  • a preferred embodiment of the invention is that at least one first pigtail and at least one second Pigtail are provided and that in the region of the first pigtail a first hollow tissue section and in the region of the second pigtail a second hollow tissue section is formed.
  • one of the connecting leads forms a positive pole and the other pigtail forms a negative pole.
  • electrically conductive threads can pass electrically without contact or at least with reduced contact on both connecting leads. Further, it is possible to make the electrical connections on one side close to each other.
  • the connecting leads can also be provided on a common hollow fabric section. Due to the hollow space between the fabric layers, the connecting wires can be spatially separated from one another and thus insulated from one another.
  • two oppositely polarized connecting strands can be arranged on one and the same edge region of the region of the fabric to be heated. The heat is then generated not so between the two leads, but beyond both leads. The electrical connection is made only from one side of the heating area. In this way, it is ensured that the surface of the heating fabric to be heated largely can be cut free.
  • the heating fabric can thus be dimensioned particularly flexible.
  • the connecting leads can in principle be arranged at any point of the fabric.
  • the connecting strands preferably extend along an edge region of the fabric, in particular at a small distance from a side edge of the fabric. They preferably run along an edge of the heating fabric, at the edge of a region to be heated.
  • the at least two pigtails of different polarity are arranged parallel and / or at a small distance from one another, wherein the region between the pigtails is preferably unheated.
  • An improved conductivity along the pigtail can be generated by providing at least one pigtail strand comprising a plurality of pigtails.
  • a plurality of connecting leads are combined to form a stranded strand strand, which serves as an electrode for the electrically conductive threads.
  • An improved conductivity can also be achieved by using one or more films as pigtails in addition to or instead of wires or filaments. The film may in particular be drawn into the hollow fabric.
  • electrically conductive material for the at least one pigtail is, for example, copper or silver into consideration.
  • electrically conductive material for the at least one pigtail is, for example, copper or silver into consideration.
  • a pure copper or silver strand can be provided.
  • a conductive coated thread for example a silver-plated, tinned or nickel-plated copper strand.
  • an insulating separating layer can be introduced into the cavity.
  • the insulating separating layer for example an insulating film, ensures that even with a spatial approximation of the two layers of the hollow tissue section, For example, by a tensile load of the fabric, a reliable insulation is maintained.
  • a further preferred embodiment of the invention consists in that the insulating separating layer is conductively coated on at least one side.
  • the separating layer is preferably conductively coated on a side facing the connecting strands.
  • the conductive coating may for example be formed by a flexible printed circuit board. If both connecting leads (plus and minus) are arranged on the same hollow tissue section, the insulating separating layer can also be conductively coated on both sides. Incidentally, a one-sided conductive coating is preferred.
  • the connecting wires run in the warp direction.
  • the electrically conductive threads preferably run transversely to the connecting strands, ie in the weft direction.
  • the invention provides that a first pigtail is connected to a plurality of first, electrically conductive threads and a second pigtail to a plurality of second, electrically conductive threads.
  • the electrically conductive threads preferably extend into a surface of the heating fabric to be heated and are each electrically conductively connected either to the first pigtail or to the second pigtail.
  • the electrically conductive threads can be connected to one another, for example, by a high-impedance conductor medium.
  • a first basic idea of this embodiment can be seen in distributing a plurality of electrically conductive threads in the heating fabric, which supply leads for a resistance medium in which the relevant part of the heat is generated.
  • a first part of these supply lines, the positive pole and another part of the negative terminal of a circuit is closed.
  • the heat generation thus takes place significantly between the electrically conductive threads in the high-impedance resistance medium. Due to the preferably uniformly distributed in the surface to be heated supply lines and the high compared to the resistance medium conductivity of the supply leads, a uniform heat effect can be generated in the heating fabric.
  • Another aspect is to connect all electrically conductive threads of the same polarity (plus or minus) each to a common pigtail or stranded wire unit.
  • a first group of electrically conductive threads is thus connected to a first pigtail, which for example forms a positive pole, and a second group is connected to a second pigtail, which then forms the negative pole.
  • the threads do not contact the respective other pigtail, so that there is an electrical separation between the plus threads and the minus threads.
  • the electrically conductive threads are therefore each connected to only one of the connecting leads (plus or minus).
  • the selective connection of the electrically conductive threads with the first or the second pigtail can be realized reliably by passing the threads on the non-contact pigtail on the respective other fabric layer of the hollow fabric section.
  • the electrically conductive threads preferably run parallel to one another and do not contact each other in this way.
  • the electrically conductive threads can extend along the entire longitudinal or weft direction of the fabric, without contacting the transverse thereto, each opposite polarity pigtail.
  • the electrically conductive threads which extend as supply lines into the region to be heated, are preferably aligned transversely to the connecting leads. In the area of the surface to be heated, the electrically conductive threads are electrically connected to one another via the high-resistance conductor medium.
  • a high-impedance conductor medium is understood in particular to mean a conductor medium in which heat can be generated by applying a voltage and which has a higher electrical resistance than the electrically conductive supply line threads.
  • the electrically conductive threads of the first pigtail and those of the second pigtail are evenly distributed over the tissue, which is to be understood as meaning that the return lines are distributed either alternately or in another predetermined, regular sequence over the surface of the fabric.
  • a multiplicity of circuits is formed along the surface of the tissue, wherein a uniform heating effect is produced by the uniform arrangement of the electrically conductive threads.
  • a high-impedance conductor medium can be provided according to a preferred embodiment of the invention, at least one high-impedance thread.
  • a multiplicity of high-impedance filaments are arranged transversely to the electrically conductive filaments. The high-resistance filaments thus each contact a multiplicity of electrically conductive filaments, which are alternately connected to the two connecting strands or stranded strands.
  • the high-resistance thread is looped around by at least one pair of threads of the electrically conductive threads, wherein a first thread of the pair of yarns the high-resistance thread on a first fabric side and a second thread of the pair of yarns contacted the high-impedance thread on a second fabric side.
  • the feeder threads in the weft direction are therefore each carried out twice, so that the high-resistance thread is better wrapped or contacted.
  • a flat coating is provided as a high-impedance conductor medium.
  • the planar coating for example a resistor paste, forms the heating resistive material.
  • a planar coating is for example a carbon or graphene coating into consideration.
  • the coating can also be designed as a nanotube coating. In this case, the area of the connecting strands is preferably not coated. A combination of high-impedance filaments and high-resistance fabric coating is also possible.
  • FIGS. 1 to 3 A first embodiment of a heating fabric 10 according to the invention is shown in FIG FIGS. 1 to 3 shown.
  • the heating fabric 10 comprises a base fabric with weft threads 12 running in the weft direction and warp threads 14 extending in the warp direction (cf. Fig. 3 ).
  • the threads 12, 14 are designed as non-conductive threads and may for example consist of PET filaments.
  • a plurality of electrically conductive threads 62, 64 is woven.
  • the electrically conductive threads 62, 64 can be made in total be formed of a conductive material or conductive coated.
  • the electrically conductive threads 62, 64 run exclusively in one direction of the fabric, here in the weft direction along the non-conductive weft threads 12.
  • two strand strands 30, 50 are arranged in the region of a side edge of the heating fabric 10, which forms a connection region 16 of the heating fabric 10. These each represent a connection electrode for the electrically conductive threads 62, 64.
  • the strand strands 30, 50 are introduced into the fabric such that a first strand strand 30 exclusively with a group of first electrically conductive threads 62 and a second strand strand 50 exclusively with a Group of second electrically conductive threads 64 is connected.
  • the strand strands 30, 50 each include a plurality of individual strands 32, 52, which may be embodied, for example, as copper or silver strands or as conductive coated yarns.
  • the first connecting strands 32 are web-technically connected to the first electrically conductive threads 62.
  • the second connecting strands 52 are web-technically connected to the second electrically conductive threads 64. In terms of binding, no second electrically conductive threads 64 make contact with the first connecting leads 32 and vice versa.
  • the electrical separation of the first connecting leads 32 from the second electrically conducting threads 64 and the second connecting leads 52 from the first electrically conductive threads 62 is realized in that a hollow tissue section 20, 40 is formed in each case in the region of the connecting strand strands 30, 50.
  • the warp threads 14 of the fabric are pulled in such that two fabric layers 22, 24, 42, 44 are formed in the region of the hollow fabric sections 20, 40.
  • the two fabric layers 22, 24, 42, 44 of this hollow fabric or double layer fabric sections are electrically insulated from one another.
  • Fig. 2 shows a cross-sectional view of the terminal portion 16 of the heating fabric 10 with its two hollow fabric sections 20, 40.
  • the first hollow fabric section 20 has an upper fabric layer 22 and a lower fabric layer 24.
  • the second hollow fabric section 40 has an upper fabric layer 42 and a lower fabric layer 44.
  • the first connecting strands 32 are arranged on the upper fabric layer 22 of the first hollow fabric section 20.
  • the second connection strands 52 are arranged on the lower fabric layer 44 of the second hollow fabric section 40.
  • the threads 62 electrically connected to the first connecting strands 32 extend along the upper fabric layer 42 of the second hollow fabric section 40 and the threads 64 connected to the second connecting strands 52 extend along the lower fabric layer 24 of the first hollow fabric section 20. In this way, the threads are 62 of the connecting leads 52 and the threads 64 of the connecting leads 32 are electrically isolated.
  • the first connecting leads 32 and the second connecting leads 52 can also be referred to as positive poles or negative poles, which are to be connected to a voltage source.
  • the electrically conductive threads 62, 64 are electrically connected to one another along a heating region 60 or a surface of the heating fabric 10 to be heated by means of a high-resistance conductor medium. Due to the high-impedance conductor medium, which is formed in the first embodiment of the heating fabric 10 by a plurality of transverse to the supply lines 62, 64 extending, high-resistance filaments 66, a uniform heating over the entire heating area 60 is generated. The high-resistance filaments 66 running in the warp direction intersect the electrically conductive filaments 62, 64 and in this way produce a multiplicity of electrical circuits over the heating surface of the fabric.
  • Fig. 3 shows a preferred thread guide in the heating surface of the fabric.
  • the electrically conductive threads 62, 64 are each executed in duplicate, that is, between non-conductive weft threads 12 are at least two electrically conductive threads 62 or 64, which loop around the high-resistance thread 66 on opposite sides, so that the thread 66 is looped around on both sides , Due to the paired arrangement of electrically conductive threads 62, 64 between the non-conductive threads 12, a particularly good contacting of the high-resistance threads 66 is achieved.
  • one hollow space can be inserted into the hollow tissue sections 20, 40 Separator or separating layer 34, 54 introduced.
  • the separating device 34, 54 may in particular comprise a release film, which is drawn into the heating fabric 10 along the respective hollow fabric section 20, 40.
  • the separating foil may be electrically coated on its side facing the pigtail.
  • FIG Fig. 4 A second embodiment of a heating fabric 10 according to the invention is shown in FIG Fig. 4 shown.
  • the heating fabric 10 is provided in the area to be heated with a high-resistance coating 68.
  • the heating fabric 10 may be coated with a resistance paste.
  • the connection region 16, in which the connecting leads 32, 52 are arranged, is preferably not coated.
  • the already finished woven fabric is coated.
  • the power supply is distributed over the threads 62, 64 on the surface and passed into the resistive coating. In the resistance coating, the heat is generated.
  • the distance between the threads 62, 64 is determined by the operating voltage, the resistance paste or the paste thickness and the desired heating power.
  • Fig. 5 shows a possibility of realization of a cable connection for the electrode wires 32, 52.
  • a plate angle 70 is clamped on the electrodes.
  • the sheet metal bracket 70 connects all the connecting leads 32, 52 of a stranded strand 30, 50 and forms a connection device for a voltage source, not shown in the figures.
  • a conductive foil for example a copper foil
  • the fabric can be cut almost as desired, without changing the surface heating power.
  • the tissue With a rectangular design of the tissue, the tissue can be cut almost anywhere along three of the four sides.
  • the connection region 16 with the connecting leads 32, 52 must not be severed.
  • Fig. 6 shows a way to heat a fabric with a hole 18 over its entire surface.
  • two Gleichpolige connecting strands 32, 52 are provided on opposite tissue areas or fabric edges in each case.
  • individual electrically conductive threads 62, 64 are cut through the hole 18, the heating fabric 10 is heated along the entire heating region 60.
  • the electrically conductive threads 62 are electrically conductively connected to first connecting leads 32 arranged on opposite sides of the hole 18.
  • the second electrically conductive threads 64 are connected to two corresponding connection strands 52 on opposite sides of the hole 18.
  • the pigtails 32, 52 may be embodied as pigtails strands 30, 50. If there are several holes in the same line, there should be more intermediate pigtails to ensure power between adjacent holes.
  • a unidirectional heating fabric By using elastic and / or textured, electrically conductive threads 62, 64 and elastic weft yarns (for example Lycra), a unidirectional heating fabric can be produced.
  • the invention provides a heating fabric which can be cut particularly flexible. This is achieved in that the connecting leads are not arranged on opposite sides of the fabric or its heating area, but on one and the same side, so that the fabric or the heating area can be largely cut free, apart from the area of the connecting strands.
  • the heating effect in the surface of the fabric is created by connecting the pigtails respectively to separate, electrically conductive threads which extend into the surface of the fabric. The contacting of the electrically conductive threads via a high-impedance conductor medium in which due to its electrical resistance of the relevant part of the heat is generated.

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

Description

Die Erfindung betrifft ein Heizgewebe gemäß dem Oberbegriff des Anspruchs 1. Ein solches Heizgewebe umfasst in Kettrichtung und in Schussrichtung verlaufende Fäden, wobei zumindest ein Teil der Fäden als elektrisch leitfähige Fäden ausgeführt ist.The invention relates to a heating fabric according to the preamble of claim 1. Such a heating fabric comprises threads running in the warp direction and in the weft direction, at least part of the threads being designed as electrically conductive threads.

Heizgewebe dieser Art werden beispielsweise für Sitzheizungen in Fahrzeugen eingesetzt. Zur Wärmeerzeugung wird an die elektrisch leitenden Fäden eine Spannung angelegt. Durch den elektrischen Widerstand der Fäden wird Wärme erzeugt, die zur Beheizung des Sitzes genutzt wird.Heating fabric of this type are used for example for seat heaters in vehicles. To generate heat, a voltage is applied to the electrically conductive threads. The electrical resistance of the filaments generates heat that is used to heat the seat.

Ein gattungsgemäßes Heizgewebe mit eingewebten elektrisch leitfähigen Fäden geht aus der US 2011/278282 A1 hervor. In dem rechteckigen Heizgewebe erstrecken sich die leitfähigen Fäden als Heizleiter zur Wärmeerzeugung parallel in eine Breitenrichtung zwischen zwei sich in Längsrichtung erstreckenden Anschlusslitzen unterschiedlicher Polarität. Die Anschlusslitzen sind an gegenüberliegenden Seiten des Heizbereiches angeordnet, welcher von den Heizleitern durchzogen ist.A generic heating fabric with woven electrically conductive threads goes out of the US 2011/278282 A1 out. In the rectangular heating fabric, the conductive filaments as heat conductors for heat generation extend in parallel in a width direction between two longitudinally extending lead wires of different polarity. The pigtails are arranged on opposite sides of the heating area, which is traversed by the heating conductors.

Zur Erzeugung einer flächigen Erwärmung des Heizgewebes können die elektrisch leitenden Fäden auf unterschiedliche Weise angeordnet werden. Beispielsweise ist es bekannt, zumindest einen elektrisch leitenden Faden als Heizdraht mäanderförmig entlang des Heizgewebes zu führen. Allerdings besteht hier das Problem, dass bei einer Durchtrennung des Heizfadens die Heizwirkung großflächig ausfällt. Ein Heizelement mit mäanderförmiger Heizdrahtanordnung ist aus der WO 2006/054853 A1 bekannt.To produce a planar heating of the heating fabric, the electrically conductive threads can be arranged in different ways. For example, it is known to guide at least one electrically conductive thread as a heating wire meandering along the Heizgewebes. However, there is the problem here that with a severing of the filament, the heating effect over a large area. A heating element with a meander-shaped heating wire arrangement is known from WO 2006/054853 A1 known.

Ein Flächenheizelement mit mehreren aus jeweils einer Gruppe von elektrisch leitenden Fäden bestehenden Heizbändern, welche über plattenförmige Verbindungseinrichtungen verschaltet sind, ist in der EP 1 835 786 A1 beschrieben. Durch die Verschaltung der einzelnen Heizbänder ergibt sich ebenfalls ein im Wesentlichen mäanderförmiger Verlauf, wobei gezielt Bereiche mit Heizleistung und ohne Heizleistung geschaffen werden können.A surface heating element with a plurality of each consisting of a group of electrically conductive filaments heating bands, which are interconnected via plate-shaped connecting means is in the EP 1 835 786 A1 described. The interconnection of the individual heating strips also results in a substantially meander-shaped course, whereby targeted areas with heating power and without heating power can be created.

Aus der EP 1544869 A1 und der US 2009/0223946 A1 gehen geschichtete Heizelemente hervor, bei denen auf ein flexibles Substrat Anschlusslitzen mit kammartigen Zuleitungen aus einer Widerstandstinte aufgebracht sind.From the EP 1544869 A1 and the US 2009/0223946 A1 Layered heating elements emerge in which connection strands with comb-like supply lines of a resistive ink are applied to a flexible substrate.

DE 42 33 118 A1 beschreibt eine Heizmatte mit einem aus Kohlenstofffasern gebildeten Gewebe, welches ein flexibles Widerstandsmaterial bildet und in welches flexible Kontaktdrähte, welche die Elektroden darstellen, eingearbeitet sind. Durch Anlegen einer Spannung wird zwischen den Kontaktdrähten entlang des Widerstandsmaterials eine Heizwirkung erzeugt. DE 42 33 118 A1 describes a heating mat with a fabric formed of carbon fibers, which forms a flexible resistance material and in which flexible contact wires, which constitute the electrodes, are incorporated. By Applying a voltage, a heating effect is generated between the contact wires along the resistance material.

Der Erfindung liegt die Aufgabe zugrunde, ein Heizgewebe anzugeben, welches eine zuverlässige Heizwirkung bereitstellt und flexibel dimensionierbar ist.The invention has for its object to provide a heating fabric, which provides a reliable heating effect and is flexibly dimensioned.

Die Aufgabe wird erfindungsgemäß durch ein Heizgewebe mit den Merkmalen des Anspruchs 1 gelöst. Bevorzugte Ausgestaltungen des Heizgewebes sind in den abhängigen Ansprüchen angegeben.The object is achieved by a heating fabric with the features of claim 1. Preferred embodiments of the heating fabric are given in the dependent claims.

Ein erster Grundgedanke der Erfindung kann darin gesehen werden, eine Anschlusslitze, welchem zum Verbinden der elektrisch leitfähigen Fäden mit einer Spannungsquelle dient, in das Heizgewebe einzubringen. Die Anschlusslitze verläuft erfindungsgemäß entlang einer durch das Heizgewebe gebildeten Fläche, also in der durch das Heizgewebe gebildeten Ebene. Beispielsweise kann die Anschlusslitze in das Gewebe eingearbeitet oder auf eine Gewebeoberfläche aufgebracht sein.A first basic idea of the invention can be seen in the fact that a pigtail, which serves to connect the electrically conductive threads to a voltage source, is introduced into the heating fabric. According to the invention, the pigtail extends along a surface formed by the heating fabric, that is to say in the plane formed by the heating fabric. For example, the pigtail may be incorporated into the tissue or applied to a tissue surface.

Die Anschlusslitze ist mit zumindest einem Teil der elektrisch leitfähigen Fäden leitend verbunden, um die elektrisch leitfähigen Fäden an die Spannungsquelle anzuschließen. Die Anschlusslitzen, welche auch als Anschlusselektroden bezeichnet werden können, dienen dem gemeinsamen Anschluss der elektrisch leitfähigen Fäden an die Spannungsquelle.The pigtail is conductively connected to at least a portion of the electrically conductive strands to connect the electrically conductive strands to the voltage source. The connecting leads, which can also be referred to as connection electrodes, serve for the common connection of the electrically conductive threads to the voltage source.

Eine bevorzugte Weiterbildung der Erfindung besteht darin, das Heizgewebe im Bereich der Anschlusslitze als Hohlgewebe auszubilden. Der Hohlgewebeabschnitt umfasst zumindest zwei getrennte Gewebelagen und einen sich zwischen den Gewebelagen in eine Längsrichtung entlang des Gewebes erstreckenden, kanalförmigen Hohlraum. Die Anschlusslitze erstreckt sich entlang der Längsrichtung des Hohlgewebeabschnitts beziehungsweise des Hohlraums.A preferred embodiment of the invention is to form the heating fabric in the pigtail as a hollow fabric. The hollow tissue section comprises at least two separate layers of fabric and a channel-shaped cavity extending between the layers of fabric in a longitudinal direction along the fabric. The pigtail extends along the longitudinal direction of the hollow tissue section or the cavity.

Durch den Hohlgewebeabschnitt werden zwei gegeneinander isolierte oder isolierbare Gewebebereiche bereitgestellt. Auf diese Weise können elektrisch leitende Fäden die Anschlusslitze ohne Kontaktierung kreuzen, indem die Anschlusslitze an einer der Gewebelagen angeordnet ist und die elektrisch leitenden Fäden an der jeweils anderen Gewebelage verlaufen. Beispielsweise kann ein Teil der elektrisch leitenden Fäden oder ein der Anschlusslitze gegenüberliegendes Ende eines elektrisch leitenden Fadens an der Anschlusslitze vorbei zu einem gegenpoligen Spannungsanschluss geführt sein.Through the hollow tissue section two mutually insulated or isolatable tissue areas are provided. In this way, electrically conductive threads Crossing the pigtail without contacting by the pigtail is disposed on one of the fabric layers and extend the electrically conductive threads on the respective other fabric layer. For example, a portion of the electrically conductive threads or one of the pigtail opposite end of an electrically conductive thread can be performed on the pigtail over to a mutual-pole voltage connection.

In einem sich an den Hohlgewebeabschnitt anschließenden Heizabschnitt des Heizgewebes ist das Gewebe vorzugsweise einlagig ausgeführt. Vorzugsweise ist das Heizgewebe zu beiden Seiten des sich längs erstreckenden Hohlgewebeabschnitts einlagig ausgeführt.In a heating section of the heating fabric adjoining the hollow fabric section, the fabric is preferably designed as a single layer. The heating fabric is preferably designed as a single layer on both sides of the longitudinally extending hollow fabric section.

Unter Fäden werden vorliegend sämtliche linienförmigen, textilen Gebilde verstanden, die zu Geweben verarbeitet werden können, insbesondere Garne, Drähte und Mono- sowie MultifilamenteIn the present case, threads are understood as meaning all linear, textile structures which can be processed into fabrics, in particular yarns, wires and mono- and multifilaments

Eine bevorzugten Ausführungsform der Erfindung besteht darin, dass mindestens eine erste Anschlusslitze und mindestens eine zweite Anschlusslitze vorgesehen sind und dass im Bereich der ersten Anschlusslitze ein erster Hohlgewebeabschnitt und im Bereich der zweiten Anschlusslitze ein zweiter Hohlgewebeabschnitt ausgebildet ist. Vorzugsweise bildet eine der Anschlusslitzen einen Pluspol und die andere Anschlusslitze einen Minuspol. Auf diese Weise lassen sich an beiden Anschlusslitzen elektrisch leitfähige Fäden elektrisch kontaktfrei oder jedenfalls kontaktreduziert vorbeiführen. Weiter wird ermöglicht, die elektrischen Anschlüsse auf einer Seite nahe beieinander auszuführen.A preferred embodiment of the invention is that at least one first pigtail and at least one second Pigtail are provided and that in the region of the first pigtail a first hollow tissue section and in the region of the second pigtail a second hollow tissue section is formed. Preferably, one of the connecting leads forms a positive pole and the other pigtail forms a negative pole. In this way, electrically conductive threads can pass electrically without contact or at least with reduced contact on both connecting leads. Further, it is possible to make the electrical connections on one side close to each other.

Die Anschlusslitzen können auch an einem gemeinsamen Hohlgewebeabschnitt vorgesehen sein. Durch den Hohlraum zwischen den Gewebelagen lassen sind die Anschlusslitzen räumlich voneinander trennen und somit gegeneinander isolieren.The connecting leads can also be provided on a common hollow fabric section. Due to the hollow space between the fabric layers, the connecting wires can be spatially separated from one another and thus insulated from one another.

Durch den zumindest einen erfindungsgemäßen Hohlgewebeabschnitt lassen sich zwei gegenpolige Anschlusslitzen an ein und demselben Randbereich des zu beheizenden Bereichs des Gewebes anordnen. Die Wärme wird dann also nicht zwischen den beiden Anschlusslitzen, sondern jenseits beider Anschlusslitzen erzeugt. Der elektrische Anschluss erfolgt nur von einer Seite des Heizbereichs. Auf diese Weise wird gewährleistet, dass die zu beheizende Fläche des Heizgewebes weitgehend frei zugeschnitten werden kann. Das Heizgewebe lässt sich somit besonders flexibel dimensionieren.By virtue of the at least one hollow fabric section according to the invention, two oppositely polarized connecting strands can be arranged on one and the same edge region of the region of the fabric to be heated. The heat is then generated not so between the two leads, but beyond both leads. The electrical connection is made only from one side of the heating area. In this way, it is ensured that the surface of the heating fabric to be heated largely can be cut free. The heating fabric can thus be dimensioned particularly flexible.

Die Anschlusslitzen können grundsätzlich an einer beliebigen Stelle des Gewebes angeordnet sein. Vorzugsweise verlaufen die Anschlusslitzen jedoch entlang eines Randbereichs des Gewebes, insbesondere in einem geringen Abstand zu einer Seitenkante des Gewebes. Sie verlaufen bevorzugt entlang einer Kante des Heizgewebes, am Rande eines zu beheizenden Bereichs. Vorzugsweise sind die zumindest zwei Anschlusslitzen unterschiedlicher Polarität parallel und/oder in geringem Abstand zueinander angeordnet, wobei der Bereich zwischen den Anschlusslitzen vorzugsweise unbeheizt ist.The connecting leads can in principle be arranged at any point of the fabric. However, the connecting strands preferably extend along an edge region of the fabric, in particular at a small distance from a side edge of the fabric. They preferably run along an edge of the heating fabric, at the edge of a region to be heated. Preferably, the at least two pigtails of different polarity are arranged parallel and / or at a small distance from one another, wherein the region between the pigtails is preferably unheated.

Eine verbesserte Leitfähigkeit entlang der Anschlusslitze kann dadurch erzeugt werden, dass zumindest ein Anschlusslitzenstrang vorgesehen ist, welcher eine Mehrzahl von Anschlusslitzen umfasst. Es sind also mehrere Anschlusslitzen zu einem Anschlusslitzenstrang zusammengefasst, welcher als Elektrode für die elektrisch leitfähigen Fäden dient. Durch den insgesamt vergrößerten Querschnitt der so gebildeten Anschlusslitzeneinrichtung kann eine gleichmäßigere Heizleistung entlang der Länge des Heizgewebes, das heißt entlang der Anschlusslitzen, gewährleistet werden. Eine verbesserte Leitfähigkeit kann auch dadurch erreicht werden, dass zusätzlich zu oder an Stelle von Drähten oder Fäden eine oder mehrere Folien als Anschlusslitzen eingesetzt werden. Die Folie kann insbesondere in das Hohlgewebe eingezogen sein.An improved conductivity along the pigtail can be generated by providing at least one pigtail strand comprising a plurality of pigtails. Thus, a plurality of connecting leads are combined to form a stranded strand strand, which serves as an electrode for the electrically conductive threads. As a result of the overall enlarged cross-section of the pigtail device thus formed, a more uniform heating power along the length of the heating fabric, that is to say along the pigtails, can be ensured. An improved conductivity can also be achieved by using one or more films as pigtails in addition to or instead of wires or filaments. The film may in particular be drawn into the hollow fabric.

Als elektrisch leitendes Material für die mindestens eine Anschlusslitze kommt beispielsweise Kupfer oder Silber in Betracht. Beispielsweise kann eine reine Kupfer- oder Silberlitze vorgesehen sein. Es kann auch ein leitend beschichteter Faden verwendet werden, beispielsweise eine versilberte, verzinnte oder vernickelte Kupferlitze.As electrically conductive material for the at least one pigtail is, for example, copper or silver into consideration. For example, a pure copper or silver strand can be provided. It is also possible to use a conductive coated thread, for example a silver-plated, tinned or nickel-plated copper strand.

Zur verbesserten elektrischen Trennung der beiden Lagen des Hohlgewebeabschnitts kann in den Hohlraum eine isolierende Trennschicht eingebracht sein. Die isolierende Trennschicht, beispielsweise eine isolierende Folie, stellt sicher, dass auch bei einer räumlichen Annäherung der beiden Lagen des Hohlgewebeabschnitts, beispielsweise durch eine Zugbelastung des Gewebes, eine zuverlässige Isolierung erhalten bleibt.For improved electrical separation of the two layers of the hollow tissue section, an insulating separating layer can be introduced into the cavity. The insulating separating layer, for example an insulating film, ensures that even with a spatial approximation of the two layers of the hollow tissue section, For example, by a tensile load of the fabric, a reliable insulation is maintained.

Eine weitere bevorzugte Ausführungsform der Erfindung besteht darin, dass die isolierende Trennschicht auf zumindest einer Seite leitend beschichtet ist. Vorzugsweise ist die Trennschicht auf einer der Anschlusslitzen zugewandten Seite leitend beschichtet. Auf diese Weise wird die Leitfähigkeit der Zuführung, also der Elektrode, nochmals erhöht, und es können Zuführungsverluste gesenkt werden. Die leitende Beschichtung kann beispielsweise durch eine flexible Leiterplatte gebildet sein. Sofern beide Anschlusslitzen (Plus und Minus) an ein und demselben Hohlgewebeabschnitt angeordnet sind, kann die isolierende Trennschicht auch beidseitig leitend beschichtet sein. Im Übrigen ist eine einseitige leitende Beschichtung bevorzugt.A further preferred embodiment of the invention consists in that the insulating separating layer is conductively coated on at least one side. The separating layer is preferably conductively coated on a side facing the connecting strands. In this way, the conductivity of the feed, so the electrode, increased again, and it can feed losses are reduced. The conductive coating may for example be formed by a flexible printed circuit board. If both connecting leads (plus and minus) are arranged on the same hollow tissue section, the insulating separating layer can also be conductively coated on both sides. Incidentally, a one-sided conductive coating is preferred.

Herstellungstechnisch ist es bevorzugt, dass die Anschlusslitzen in Kettrichtung verlaufen.In terms of production, it is preferred that the connecting wires run in the warp direction.

Vorzugsweise verlaufen die elektrisch leitfähigen Fäden quer zu den Anschlusslitzen, also in Schussrichtung.The electrically conductive threads preferably run transversely to the connecting strands, ie in the weft direction.

Es kann auch eine umgekehrte Ausbildung vorgesehen sein, bei welcher die Anschlusslitzen mit dem Hohlgewebeabschnitt in Schlussrichtung und die leitfähigen Fäden in Kettrichtung geführt werden, um so eine Trennung vom Plus- / Minus- Strängen zu erreichen. Weiter kann zur besseren Kontaktierung der einzelnen Fäden / Garne auch eine Dreherbindung (leno weave) vorgesehen sein, bei welcher eine Umschlingung gegeben ist.It may also be provided a reverse construction, in which the connecting strands are guided with the hollow fabric section in the closing direction and the conductive threads in the warp direction, so as to achieve a separation of the plus / minus strands. Next can be provided for better contacting of the individual threads / yarns and a leno weave (leno weave) in which a wrap is given.

Die Erfindung sieht vor, dass eine erste Anschlusslitze mit einer Mehrzahl von ersten, elektrisch leitfähigen Fäden und eine zweite Anschlusslitze mit einer Mehrzahl von zweiten, elektrisch leitfähigen Fäden verbunden ist. Die elektrisch leitfähigen Fäden erstrecken sich vorzugsweise in eine zu beheizende Fläche des Heizgewebes hinein und sind jeweils entweder mit der ersten Anschlusslitze oder mit der zweiten Anschlusslitze elektrisch leitend verbunden. Entlang der zu beheizenden Fläche des Heizgewebes können die elektrisch leitfähigen Fäden beispielsweise durch ein hochohmiges Leitermedium miteinander verbunden sein.The invention provides that a first pigtail is connected to a plurality of first, electrically conductive threads and a second pigtail to a plurality of second, electrically conductive threads. The electrically conductive threads preferably extend into a surface of the heating fabric to be heated and are each electrically conductively connected either to the first pigtail or to the second pigtail. Along the surface of the heating fabric to be heated, the electrically conductive threads can be connected to one another, for example, by a high-impedance conductor medium.

Ein erster Grundgedanke dieser Ausführungsform kann darin gesehen werden, eine Mehrzahl von elektrisch leitfähigen Fäden in dem Heizgewebe zu verteilen, welche Zuleitungsfäden für ein Widerstandsmedium, in welchem der maßgebliche Teil der Wärme erzeugt wird, darstellen. Dabei stellt ein erster Teil dieser Zuleitungsfäden den Pluspol und ein weiterer Teil den Minuspol eines Stromkreises dar. Über das hochohmige Widerstandsmedium zwischen den ersten Zuleitungsfäden und den zweiten Zuleitungsfäden wird der Stromkreis geschlossen.A first basic idea of this embodiment can be seen in distributing a plurality of electrically conductive threads in the heating fabric, which supply leads for a resistance medium in which the relevant part of the heat is generated. In this case, a first part of these supply lines, the positive pole and another part of the negative terminal of a circuit. About the high-impedance resistance medium between the first supply lines and the second supply lines of the circuit is closed.

Die Wärmeerzeugung erfolgt also maßgeblich zwischen den elektrisch leitfähigen Fäden in dem hochohmigen Widerstandsmedium. Aufgrund der vorzugsweise gleichmäßig in der zu beheizenden Fläche verteilten Zuleitungsfäden und der im Vergleich zu dem Widerstandsmedium hohen Leitfähigkeit der Zuleitungsfäden kann eine gleichmäßige Wärmewirkung in dem Heizgewebe erzeugt werden.The heat generation thus takes place significantly between the electrically conductive threads in the high-impedance resistance medium. Due to the preferably uniformly distributed in the surface to be heated supply lines and the high compared to the resistance medium conductivity of the supply leads, a uniform heat effect can be generated in the heating fabric.

Ein weiterer Aspekt besteht darin, sämtliche elektrisch leitfähigen Fäden derselben Polarität (Plus oder Minus) jeweils an eine gemeinsame Anschlusslitze oder Anschlusslitzeneinheit anzuschließen. Eine erste Gruppe von elektrisch leitenden Fäden ist also an eine erste Anschlusslitze, welche beispielsweise einen Pluspol bildet, und eine zweite Gruppe ist an eine zweite Anschlusslitze angeschlossen, welche dann den Minuspol bildet. Die Fäden kontaktieren dabei die jeweils andere Anschlusslitze nicht, so dass eine elektrische Trennung zwischen den Plus-Fäden und den Minus-Fäden vorliegt. Die elektrisch leitfähigen Fäden sind also jeweils nur mit einer der Anschlusslitzen (Plus oder Minus) verbunden.Another aspect is to connect all electrically conductive threads of the same polarity (plus or minus) each to a common pigtail or stranded wire unit. A first group of electrically conductive threads is thus connected to a first pigtail, which for example forms a positive pole, and a second group is connected to a second pigtail, which then forms the negative pole. The threads do not contact the respective other pigtail, so that there is an electrical separation between the plus threads and the minus threads. The electrically conductive threads are therefore each connected to only one of the connecting leads (plus or minus).

Durch den mindestens einen Hohlgewebeabschnitt lässt sich die selektive Verbindung der elektrisch leitfähigen Fäden mit der ersten oder der zweiten Anschlusslitze zuverlässig realisieren, indem die Fäden an der nicht zu kontaktierende Anschlusslitze auf der jeweils anderen Gewebelage des Hohlgewebeabschnitts vorbeigeführt werden. Die elektrisch leitfähigen Fäden verlaufen vorzugsweise parallel zueinander und kontaktieren sich auf diese Weise nicht.By means of the at least one hollow fabric section, the selective connection of the electrically conductive threads with the first or the second pigtail can be realized reliably by passing the threads on the non-contact pigtail on the respective other fabric layer of the hollow fabric section. The electrically conductive threads preferably run parallel to one another and do not contact each other in this way.

Wenn beide Anschlusslitzen an einem Hohlgewebeabschnitt angeordnet sind, können sich die elektrisch leitfähigen Fäden entlang der gesamten Längs- oder Schussrichtung des Gewebes erstrecken, ohne die hierzu quer verlaufende, jeweils gegenpolige Anschlusslitze zu kontaktieren.If both pigtails are arranged on a hollow fabric section, the electrically conductive threads can extend along the entire longitudinal or weft direction of the fabric, without contacting the transverse thereto, each opposite polarity pigtail.

Die elektrisch leitfähigen Fäden, welche sich als Zuleitungen in den zu beheizenden Bereich hinein erstrecken, sind bevorzugt quer zu den Anschlusslitzen ausgerichtet. Im Bereich der zu beheizenden Fläche sind die elektrisch leitfähigen Fäden über das hochohmige Leitermedium miteinander elektrisch verbunden.The electrically conductive threads, which extend as supply lines into the region to be heated, are preferably aligned transversely to the connecting leads. In the area of the surface to be heated, the electrically conductive threads are electrically connected to one another via the high-resistance conductor medium.

Unter einem hochohmigen Leitermedium wird insbesondere ein Leitermedium verstanden, in welchem durch Anlegen einer Spannung Wärme erzeugt werden kann und welches einen höheren elektrischen Widerstand aufweist als die elektrisch leitfähigen Zuleitungsfäden.A high-impedance conductor medium is understood in particular to mean a conductor medium in which heat can be generated by applying a voltage and which has a higher electrical resistance than the electrically conductive supply line threads.

Vorzugsweise sind die elektrisch leitfähigen Fäden der ersten Anschlusslitze und diejenigen der zweiten Anschlusslitze gleichmäßig über das Gewebe verteilt, wobei hierunter zu verstehen ist, dass die Hin- und Rückleitungen entweder abwechselnd oder in einer anderen vorgegebenen, regelmäßigen Abfolge über die Fläche des Gewebes verteilt sind. Über das hochohmige Leitermedium wird entlang der Fläche des Gewebes eine Vielzahl von Stromkreisen gebildet, wobei durch die gleichmäßige Anordnung der elektrisch leitfähigen Fäden eine weitgehend gleichmäßige Heizwirkung erzeugt wird.Preferably, the electrically conductive threads of the first pigtail and those of the second pigtail are evenly distributed over the tissue, which is to be understood as meaning that the return lines are distributed either alternately or in another predetermined, regular sequence over the surface of the fabric. Via the high-impedance conductor medium, a multiplicity of circuits is formed along the surface of the tissue, wherein a uniform heating effect is produced by the uniform arrangement of the electrically conductive threads.

Als hochohmiges Leitermedium kann gemäß einer bevorzugten Ausführungsform der Erfindung mindestens ein hochohmiger Faden vorgesehen sein. Vorzugsweise ist eine Vielzahl von hochohmigen Fäden quer zu den elektrisch leitfähigen Fäden angeordnet. Die hochohmigen Fäden kontaktieren somit jeweils eine Vielzahl von elektrisch leitfähigen Fäden, welche abwechselnd mit den beiden Anschlusslitzen beziehungsweise Anschlusslitzensträngen verbunden sind.As a high-impedance conductor medium can be provided according to a preferred embodiment of the invention, at least one high-impedance thread. Preferably, a multiplicity of high-impedance filaments are arranged transversely to the electrically conductive filaments. The high-resistance filaments thus each contact a multiplicity of electrically conductive filaments, which are alternately connected to the two connecting strands or stranded strands.

Für eine zuverlässige Kontaktierung zwischen hochohmigem Faden und den elektrisch leitfähigen Fäden ist es bevorzugt, dass der hochohmige Faden von mindestens einem Fadenpaar der elektrisch leitfähigen Fäden umschlungen ist, wobei ein erster Faden des Fadenpaars den hochohmigen Faden auf einer ersten Gewebeseite und ein zweiter Faden des Fadenpaars den hochohmigen Faden auf einer zweiten Gewebeseite kontaktiert. Die Zuführungsfäden in Schussrichtung werden also jeweils doppelt ausgeführt, so dass der hochohmige Faden besser umschlungen beziehungsweise kontaktiert wird.For a reliable contact between high-resistance thread and the electrically conductive threads, it is preferred that the high-resistance thread is looped around by at least one pair of threads of the electrically conductive threads, wherein a first thread of the pair of yarns the high-resistance thread on a first fabric side and a second thread of the pair of yarns contacted the high-impedance thread on a second fabric side. The feeder threads in the weft direction are therefore each carried out twice, so that the high-resistance thread is better wrapped or contacted.

In einer weiteren bevorzugten Ausführungsform ist als hochohmiges Leitermedium eine flächige Beschichtung vorgesehen. Die flächige Beschichtung, beispielsweise eine Widerstandspaste, bildet das sich erwärmende Widerstandsmaterial. Als flächige Beschichtung kommt beispielsweise eine Kohlenstoff- oder Graphenbeschichtung in Betracht. Die Beschichtung kann auch als Nanotube-Beschichtung ausgeführt sein. Dabei wird vorzugsweise der Bereich der Anschlusslitzen nicht beschichtet. Auch eine Kombination von hochohmigen Fäden und hochohmiger Gewebebeschichtung ist möglich.In a further preferred embodiment, a flat coating is provided as a high-impedance conductor medium. The planar coating, for example a resistor paste, forms the heating resistive material. As a planar coating is for example a carbon or graphene coating into consideration. The coating can also be designed as a nanotube coating. In this case, the area of the connecting strands is preferably not coated. A combination of high-impedance filaments and high-resistance fabric coating is also possible.

Die Erfindung wird nachfolgend anhand von bevorzugten Ausführungsbeispielen, welche in den beiliegenden, schematischen Figuren gezeigt sind, weiter beschrieben. In den Figuren zeigt:

Fig. 1
eine erste Ausführungsform eines erfindungsgemäßen Heizgewebes;
Fig. 2
eine Querschnittsansicht im Bereich der Anschlusslitzen eines erfindungsgemäßen Heizgewebes;
Fig. 3
ein erfindungsgemäßes Heizgewebe einschließlich einer vergrößerten Ansicht eines Gewebeabschnitts;
Fig. 4
eine zweite Ausführungsform eines erfindungsgemäßen Heizgewebes;
Fig. 5
ein erfindungsgemäßes Heizgewebe mit Kabelanschluss und
Fig. 6
eine dritte Ausführungsform eines erfindungsgemäßen Heizgewebes.
The invention will be further described by means of preferred embodiments, which are shown in the accompanying schematic figures. In the figures shows:
Fig. 1
a first embodiment of a heating fabric according to the invention;
Fig. 2
a cross-sectional view in the region of the connecting strands of a heating fabric according to the invention;
Fig. 3
an inventive heating fabric including an enlarged view of a tissue section;
Fig. 4
a second embodiment of a heating fabric according to the invention;
Fig. 5
an inventive heating fabric with cable connection and
Fig. 6
a third embodiment of a heating fabric according to the invention.

Gleiche oder gleich wirkende Komponenten sind in sämtlichen Figuren mit denselben Bezugszeichen gekennzeichnet.Identical or equivalent components are identified in all figures with the same reference numerals.

Eine erste Ausführungsform eines erfindungsgemäßen Heizgewebes 10 ist in Figuren 1 bis 3 dargestellt. Das Heizgewebe 10 umfasst ein Grundgewebe mit in Schussrichtung verlaufenden Schussfäden 12 und in Kettrichtung verlaufenden Kettfäden 14 (vergleiche Fig. 3). Die Fäden 12, 14 sind als nicht-leitende Fäden ausgeführt und können beispielsweise aus PET-Filamenten bestehen.A first embodiment of a heating fabric 10 according to the invention is shown in FIG FIGS. 1 to 3 shown. The heating fabric 10 comprises a base fabric with weft threads 12 running in the weft direction and warp threads 14 extending in the warp direction (cf. Fig. 3 ). The threads 12, 14 are designed as non-conductive threads and may for example consist of PET filaments.

In das nicht-leitende Grundgewebe ist eine Mehrzahl von elektrisch leitenden Fäden 62, 64 eingewoben. Die elektrisch leitenden Fäden 62, 64 können insgesamt aus einem leitenden Material gebildet oder leitend beschichtet sein. Die elektrisch leitenden Fäden 62, 64 verlaufen ausschließlich in eine Richtung des Gewebes, hier in Schussrichtung entlang der nicht-leitenden Schussfäden 12.In the non-conductive base fabric, a plurality of electrically conductive threads 62, 64 is woven. The electrically conductive threads 62, 64 can be made in total be formed of a conductive material or conductive coated. The electrically conductive threads 62, 64 run exclusively in one direction of the fabric, here in the weft direction along the non-conductive weft threads 12.

Im Bereich einer Seitenkante des Heizgewebes 10, welche einen Anschlussbereich 16 des Heizgewebes 10 bildet, sind zwei Anschlusslitzenstränge 30, 50 angeordnet. Diese stellen jeweils eine Anschlusselektrode für die elektrisch leitfähigen Fäden 62, 64 dar. Die Anschlusslitzenstränge 30, 50 sind so in das Gewebe eingebracht, dass ein erster Anschlusslitzenstrang 30 ausschließlich mit einer Gruppe von ersten elektrisch leitfähigen Fäden 62 und ein zweiter Anschlusslitzenstrang 50 ausschließlich mit einer Gruppe von zweiten elektrisch leitfähigen Fäden 64 verbunden ist. Die Anschlusslitzenstränge 30, 50 umfassen jeweils eine Mehrzahl von einzelnen Anschlusslitzen 32, 52, welche beispielsweise als Kupfer- oder Silberlitzen oder als leitend beschichtete Garne ausgeführt sein können. Die ersten Anschlusslitzen 32 sind webtechnisch mit den ersten elektrisch leitfähigen Fäden 62 verbunden. Die zweiten Anschlusslitzen 52 sind webtechnisch mit den zweiten elektrisch leitfähigen Fäden 64 verbunden. Bindungstechnisch haben keine zweiten elektrisch leitfähigen Fäden 64 Kontakt mit den ersten Anschlusslitzen 32 und umgekehrt.In the region of a side edge of the heating fabric 10, which forms a connection region 16 of the heating fabric 10, two strand strands 30, 50 are arranged. These each represent a connection electrode for the electrically conductive threads 62, 64. The strand strands 30, 50 are introduced into the fabric such that a first strand strand 30 exclusively with a group of first electrically conductive threads 62 and a second strand strand 50 exclusively with a Group of second electrically conductive threads 64 is connected. The strand strands 30, 50 each include a plurality of individual strands 32, 52, which may be embodied, for example, as copper or silver strands or as conductive coated yarns. The first connecting strands 32 are web-technically connected to the first electrically conductive threads 62. The second connecting strands 52 are web-technically connected to the second electrically conductive threads 64. In terms of binding, no second electrically conductive threads 64 make contact with the first connecting leads 32 and vice versa.

Die elektrische Trennung der ersten Anschlusslitzen 32 von den zweiten elektrisch leitfähigen Fäden 64 und der zweiten Anschlusslitzen 52 von den ersten elektrisch leitfähigen Fäden 62 ist dadurch realisiert, dass im Bereich der Anschlusslitzenstränge 30, 50 jeweils ein Hohlgewebeabschnitt 20, 40 gebildet ist. Die Kettfäden 14 des Gewebes sind hierzu so eingezogen, dass im Bereich der Hohlgewebeabschnitte 20, 40 zwei Gewebelagen 22, 24, 42, 44 entstehen. Die beiden Gewebelagen 22, 24, 42, 44 dieser Hohlgewebe- beziehungsweise Doppellagengewebeabschnitte sind gegeneinander elektrisch isoliert.The electrical separation of the first connecting leads 32 from the second electrically conducting threads 64 and the second connecting leads 52 from the first electrically conductive threads 62 is realized in that a hollow tissue section 20, 40 is formed in each case in the region of the connecting strand strands 30, 50. For this purpose, the warp threads 14 of the fabric are pulled in such that two fabric layers 22, 24, 42, 44 are formed in the region of the hollow fabric sections 20, 40. The two fabric layers 22, 24, 42, 44 of this hollow fabric or double layer fabric sections are electrically insulated from one another.

Fig. 2 zeigt eine Querschnittsansicht des Anschlussbereichs 16 des Heizgewebes 10 mit seinen beiden Hohlgewebeabschnitten 20, 40. Der erste Hohlgewebeabschnitt 20 weist eine obere Gewebelage 22 und eine untere Gewebelage 24 auf. Der zweite Hohlgewebeabschnitt 40 weist eine obere Gewebelage 42 und eine untere Gewebelage 44 auf. Die ersten Anschlusslitzen 32 sind an der oberen Gewebelage 22 des ersten Hohlgewebeabschnitts 20 angeordnet. Die zweiten Anschlusslitzen 52 sind an der unteren Gewebelage 44 des zweiten Hohlgewebeabschnitts 40 angeordnet. Zwischen den Gewebelagen 22 und 24 beziehungsweise 42 und 44 ist jeweils ein Hohlraum 26 beziehungsweise 46 gebildet. Fig. 2 shows a cross-sectional view of the terminal portion 16 of the heating fabric 10 with its two hollow fabric sections 20, 40. The first hollow fabric section 20 has an upper fabric layer 22 and a lower fabric layer 24. The second hollow fabric section 40 has an upper fabric layer 42 and a lower fabric layer 44. The first connecting strands 32 are arranged on the upper fabric layer 22 of the first hollow fabric section 20. The second connection strands 52 are arranged on the lower fabric layer 44 of the second hollow fabric section 40. Between the fabric layers 22 and 24 or 42 and 44, respectively a cavity 26 and 46 is formed.

Wie der Fig. 1 zu entnehmen ist, verlaufen die mit den ersten Anschlusslitzen 32 elektrisch verbundenen Fäden 62 entlang der oberen Gewebelage 42 des zweiten Hohlgewebeabschnitts 40 und die mit den zweiten Anschlusslitzen 52 verbundenen Fäden 64 entlang der unteren Gewebelage 24 des ersten Hohlgewebeabschnitts 20. Auf diese Weise sind die Fäden 62 von den Anschlusslitzen 52 und die Fäden 64 von den Anschlusslitzen 32 elektrisch getrennt.Again Fig. 1 2, the threads 62 electrically connected to the first connecting strands 32 extend along the upper fabric layer 42 of the second hollow fabric section 40 and the threads 64 connected to the second connecting strands 52 extend along the lower fabric layer 24 of the first hollow fabric section 20. In this way, the threads are 62 of the connecting leads 52 and the threads 64 of the connecting leads 32 are electrically isolated.

Die ersten Anschlusslitzen 32 und die zweiten Anschlusslitzen 52 können auch als Pluspole beziehungsweise Minuspole bezeichnet werden, welche an eine Spannungsquelle anzuschließen sind. Zur Herstellung eines Stromkreises sind die elektrisch leitfähigen Fäden 62, 64 entlang eines Heizbereiches 60 beziehungsweise einer zu beheizenden Fläche des Heizgewebes 10 mittels eines hochohmigen Leitermediums elektrisch miteinander verbunden. Durch das hochohmige Leitermedium, welches in der ersten Ausführungsform des Heizgewebes 10 durch eine Vielzahl von quer zu den Zuleitungsfäden 62, 64 verlaufenden, hochohmigen Fäden 66 gebildet ist, wird eine gleichmäßige Erwärmung über den gesamten Heizbereich 60 erzeugt. Die in Kettrichtung verlaufenden, hochohmigen Fäden 66 kreuzen die elektrisch leitfähigen Fäden 62, 64 und stellen auf diese Weise eine Vielzahl von elektrischen Kreisläufen über die Heizfläche des Gewebes her.The first connecting leads 32 and the second connecting leads 52 can also be referred to as positive poles or negative poles, which are to be connected to a voltage source. To produce a circuit, the electrically conductive threads 62, 64 are electrically connected to one another along a heating region 60 or a surface of the heating fabric 10 to be heated by means of a high-resistance conductor medium. Due to the high-impedance conductor medium, which is formed in the first embodiment of the heating fabric 10 by a plurality of transverse to the supply lines 62, 64 extending, high-resistance filaments 66, a uniform heating over the entire heating area 60 is generated. The high-resistance filaments 66 running in the warp direction intersect the electrically conductive filaments 62, 64 and in this way produce a multiplicity of electrical circuits over the heating surface of the fabric.

Fig. 3 zeigt eine bevorzugte Fadenführung in der Heizfläche des Gewebes. Die elektrisch leitfähigen Fäden 62, 64 sind jeweils doppelt ausgeführt, das heißt zwischen nicht-leitenden Schussfäden 12 sind jeweils mindestens zwei elektrisch leitfähige Fäden 62 oder 64, welche den hochohmigen Faden 66 auf gegenüber liegenden Seiten umschlingen, so dass der Faden 66 beidseitig umschlungen ist. Durch die paarweise Anordnung von elektrisch leitfähigen Fäden 62, 64 zwischen den nicht-leitenden Fäden 12 wird eine besonders gute Kontaktierung der hochohmigen Fäden 66 erzielt. Fig. 3 shows a preferred thread guide in the heating surface of the fabric. The electrically conductive threads 62, 64 are each executed in duplicate, that is, between non-conductive weft threads 12 are at least two electrically conductive threads 62 or 64, which loop around the high-resistance thread 66 on opposite sides, so that the thread 66 is looped around on both sides , Due to the paired arrangement of electrically conductive threads 62, 64 between the non-conductive threads 12, a particularly good contacting of the high-resistance threads 66 is achieved.

Zur Bereitstellung einer zusätzlichen elektrischen Trennung oder Isolation zwischen Plus und Minus (erste Anschlusslitzen 32 mit Fäden 62 gegenüber zweiten Anschlusslitzen 52 mit Fäden 64) kann in die Hohlgewebeabschnitte 20, 40 jeweils eine Trenneinrichtung oder Trennschicht 34, 54 eingebracht sein. Die Trenneinrichtung 34, 54 kann insbesondere eine Trennfolie umfassen, die längs des jeweiligen Hohlgewebeabschnittes 20, 40 in das Heizgewebe 10 eingezogen ist. Die Trennfolie kann zur Verbesserung der Leitfähigkeit der Anschlusslitzen 32, 52 auf ihrer der Anschlusslitze zugewandten Seite elektrisch beschichtet sein.To provide an additional electrical separation or insulation between plus and minus (first connecting strands 32 with threads 62 opposite to second connecting strands 52 with threads 64), one hollow space can be inserted into the hollow tissue sections 20, 40 Separator or separating layer 34, 54 introduced. The separating device 34, 54 may in particular comprise a release film, which is drawn into the heating fabric 10 along the respective hollow fabric section 20, 40. In order to improve the conductivity of the connecting leads 32, 52, the separating foil may be electrically coated on its side facing the pigtail.

Eine zweite Ausführungsform eines erfindungsgemäßen Heizgewebes 10 ist in Fig. 4 dargestellt. Anstelle der in Kettrichtung verlaufenden, hochohmigen Fäden beziehungsweise Garne ist das Heizgewebe 10 im zu beheizenden Bereich mit einer hochohmigen Beschichtung 68 versehen. Beispielsweise kann das Heizgewebe 10 mit einer Widerstandspaste beschichtet sein. Der Anschlussbereich 16, in welchem die Anschlusslitzen 32, 52 angeordnet sind, ist vorzugsweise nicht beschichtet. Vorzugsweise wird das bereits fertig gewobene Gewebe beschichtet.A second embodiment of a heating fabric 10 according to the invention is shown in FIG Fig. 4 shown. Instead of running in the warp direction, high-resistance filaments or yarns, the heating fabric 10 is provided in the area to be heated with a high-resistance coating 68. For example, the heating fabric 10 may be coated with a resistance paste. The connection region 16, in which the connecting leads 32, 52 are arranged, is preferably not coated. Preferably, the already finished woven fabric is coated.

Durch Anschluss der Litzen 32, 52 an eine Spannungsquelle wird die Stromzuleitung über die Fäden 62, 64 auf die Fläche verteilt und in die Widerstandsbeschichtung geleitet. In der Widerstandsbeschichtung wird die Wärme erzeugt. Der Abstand zwischen den Fäden 62, 64 ist durch die Betriebsspannung, die Widerstandspaste beziehungsweise die Pastendicke und die erwünschte Heizleistung bestimmt.By connecting the strands 32, 52 to a voltage source, the power supply is distributed over the threads 62, 64 on the surface and passed into the resistive coating. In the resistance coating, the heat is generated. The distance between the threads 62, 64 is determined by the operating voltage, the resistance paste or the paste thickness and the desired heating power.

Fig. 5 zeigt eine Möglichkeit der Realisierung eines Kabelanschlusses für die Elektrodenlitzen 32, 52. In der dargestellten Ausführungsform ist ein Blechwinkel 70 auf die Elektroden geklemmt. Der Blechwinkel 70 verbindet sämtliche Anschlusslitzen 32, 52 eines Anschlusslitzenstranges 30, 50 und bildet eine Anschlusseinrichtung für eine in den Figuren nicht dargestellte Spannungsquelle. Alternativ ist es auch möglich, eine leitende Folie, beispielsweise eine Kupferfolie, in den Hohlraum 26, 46 beziehungsweise Kanal einzuführen und anschließend Kabel auf die Folie aufzubringen, etwa zu crimpen, zu löten, zu schweißen oder zu kleben. Fig. 5 shows a possibility of realization of a cable connection for the electrode wires 32, 52. In the illustrated embodiment, a plate angle 70 is clamped on the electrodes. The sheet metal bracket 70 connects all the connecting leads 32, 52 of a stranded strand 30, 50 and forms a connection device for a voltage source, not shown in the figures. Alternatively, it is also possible to introduce a conductive foil, for example a copper foil, into the cavity 26, 46 or channel and then to apply cables to the foil, for example to crimp, solder, weld or glue.

Aufgrund der erfindungsgemäßen Gestaltung des Heizgewebes 10 kann das Gewebe fast beliebig zugeschnitten werden, ohne dass sich die Flächenheizleistung verändert. Bei einer rechteckigen Gestaltung des Gewebes kann das Gewebe entlang von drei der vier Seiten fast beliebig zugeschnitten werden. Der Anschlussbereich 16 mit den Anschlusslitzen 32, 52 darf allerdings nicht durchtrennt werden.Due to the design of the heating fabric 10 according to the invention, the fabric can be cut almost as desired, without changing the surface heating power. With a rectangular design of the tissue, the tissue can be cut almost anywhere along three of the four sides. However, the connection region 16 with the connecting leads 32, 52 must not be severed.

Fig. 6 zeigt eine Möglichkeit, auch ein Gewebe mit einem Loch 18 vollflächig zu beheizen. Hierzu sind jeweils zwei gleichpolige Anschlusslitzen 32, 52 an gegenüberliegenden Gewebebereichen beziehungsweise Gewebekanten vorgesehen. Obwohl einzelne elektrisch leitfähige Fäden 62, 64 durch das Loch 18 durchtrennt sind, wird das Heizgewebe 10 entlang des gesamten Heizbereichs 60 beheizt. Die elektrisch leitfähigen Fäden 62 sind hierzu mit auf gegenüberliegenden Seiten des Loches 18 angeordneten ersten Anschlusslitzen 32 elektrisch leitend verbunden. Die zweiten elektrisch leitfähigen Fäden 64 sind mit zwei entsprechenden Anschlusslitzen 52 auf gegenüberliegenden Seiten des Loches 18 verbunden. Wie auch bei den anderen Ausführungsformen können die Anschlusslitzen 32, 52 als Anschlusslitzenstränge 30, 50 ausgeführt sein. Bei mehreren Löchern auf der gleichen Linie sind weitere dazwischen liegende Anschlusslitzen anzubringen, um eine Stromversorgung auch zwischen nebeneinanderliegenden Löchern sicherzustellen. Fig. 6 shows a way to heat a fabric with a hole 18 over its entire surface. For this purpose, two Gleichpolige connecting strands 32, 52 are provided on opposite tissue areas or fabric edges in each case. Although individual electrically conductive threads 62, 64 are cut through the hole 18, the heating fabric 10 is heated along the entire heating region 60. For this purpose, the electrically conductive threads 62 are electrically conductively connected to first connecting leads 32 arranged on opposite sides of the hole 18. The second electrically conductive threads 64 are connected to two corresponding connection strands 52 on opposite sides of the hole 18. As with the other embodiments, the pigtails 32, 52 may be embodied as pigtails strands 30, 50. If there are several holes in the same line, there should be more intermediate pigtails to ensure power between adjacent holes.

Durch Verwendung von elastischen und/oder texturierten, elektrisch leitfähigen Fäden 62, 64 und von elastischen Schussgarnen (zum Beispiel Lycra) kann ein in eine Richtung elastisches Heizgewebe hergestellt werden.By using elastic and / or textured, electrically conductive threads 62, 64 and elastic weft yarns (for example Lycra), a unidirectional heating fabric can be produced.

Die Erfindung stellt ein Heizgewebe bereit, welches besonders flexibel zugeschnitten werden kann. Dies wird dadurch erreicht, dass die Anschlusslitzen nicht auf gegenüberliegenden Seiten des Gewebes oder dessen Heizbereichs, sondern auf ein und derselben Seite angeordnet sind, so dass das Gewebe beziehungsweise der Heizbereich abgesehen vom Bereich der Anschlusslitzen weitgehend frei zugeschnitten werden kann. Die Heizwirkung in der Fläche des Gewebes wird dadurch erzeugt, dass die Anschlusslitzen jeweils an separate, elektrisch leitfähige Fäden angeschlossen sind, welche sich in die Fläche des Gewebes hinein erstrecken. Die Kontaktierung der elektrisch leitfähigen Fäden erfolgt über ein hochohmiges Leitermedium, in welchem aufgrund seines elektrischen Widerstands der maßgebliche Teil der Wärme erzeugt wird.The invention provides a heating fabric which can be cut particularly flexible. This is achieved in that the connecting leads are not arranged on opposite sides of the fabric or its heating area, but on one and the same side, so that the fabric or the heating area can be largely cut free, apart from the area of the connecting strands. The heating effect in the surface of the fabric is created by connecting the pigtails respectively to separate, electrically conductive threads which extend into the surface of the fabric. The contacting of the electrically conductive threads via a high-impedance conductor medium in which due to its electrical resistance of the relevant part of the heat is generated.

Claims (13)

  1. Heating fabric having threads running in the warp direction and in the weft direction, wherein at least a part of the threads is designed as electrically conductive threads (62, 64),
    and along a heating area (60) of the heating fabric (10) at least two connecting strings (32, 52) run for electrical connection of the electrically conductive threads (62, 64),
    characterized in that
    - two connecting strings (32, 52) of different polarity run parallel and at a small distance to each other on the same side of the heating area (60) to be heated,
    - in that a first connecting string (32) is connected to a plurality of first electrically conductive threads (62) and a second connecting string (52) is connected to a plurality of second electrically conductive threads (64) which extend into the heating area (60) to be heated of the heating fabric (10),
    - in that the first electrically conductive threads (62) and the second electrically conductive threads (64) are connected to each other along the heating area (60) to be heated of the heating fabric (10) by a high-impedance resistance medium which is designed for the production of heat, and
    - in that the first and second electrically conductive threads (62, 64) have a high conductivity and form lead threads to the high-impedance resistance medium.
  2. Heating fabric according to claim 1,
    characterized in that
    in the area of a connecting string (32, 52) a hollow fabric section (20, 40) having a hollow space (26, 46) running along the connecting string (32, 52) is designed.
  3. Heating fabric according to claim 2,
    characterized in that
    in the area of the first connecting string (32) a first hollow fabric section (20) and in the area of the second connecting string (52) a second hollow fabric section (40) is designed.
  4. Heating fabric according to any one of claims 1 to 3,
    characterized in that
    at least one connecting string bundle (30, 50) is provided which comprises a plurality of connecting strings (32, 52).
  5. Heating fabric according to any one of claims 2 to 4,
    characterized in that
    an insulating separation layer (34, 54) is introduced into the hollow space (26, 46).
  6. Heating fabric according to claim 5,
    characterized in that
    the insulating separation layer (34, 54) is conductive-coated on at least one side.
  7. Heating fabric according to any one of claims 1 to 6,
    characterized in that
    the connecting strings (32, 52) run in the warp direction.
  8. Heating fabric according to claim 7,
    characterized in that
    the electrically conductive threads (62, 64) run in the weft direction.
  9. Heating fabric according to any one of claims 1 to 8,
    characterized in that
    the first electrically conductive threads (62) and the second electrically conductive threads (64) run parallel to each other and do not contact each other.
  10. Heating fabric according to any one of claims 1 to 9,
    characterized in that
    the high-impedance conductor medium comprises at least one high-impedance thread (66).
  11. Heating fabric according to claim 10,
    characterized in that
    the high-impedance thread (66) is entwined by at least one thread pair of the electrically conductive threads (62, 64), wherein a first thread of the thread pair contacts the high-impedance thread (66) on a first fabric side and a second thread of the thread pair contacts the high-impedance thread on a second fabric side.
  12. Heating fabric according to any one of claims 1 to 11,
    characterized in that
    the high-impedance conductor medium comprises a planar coating (68).
  13. Heating fabric according to any one of claims 1 to 12,
    characterized in that
    one homopolar first connecting string (32) and one homopolar second connecting string (52) is in each case provided in opposite areas of the heating fabric (10).
EP14184186.6A 2012-11-21 2012-11-21 Heating fabric Active EP2844030B1 (en)

Priority Applications (5)

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DK14184186.6T DK2844030T3 (en) 2012-11-21 2012-11-21 Heating Textile
EP14184186.6A EP2844030B1 (en) 2012-11-21 2012-11-21 Heating fabric
ES14184186.6T ES2559477T3 (en) 2012-11-21 2012-11-21 Heating fabric
HUE14184186A HUE027455T2 (en) 2012-11-21 2012-11-21 Heating fabric
PL14184186T PL2844030T3 (en) 2012-11-21 2012-11-21 Heating fabric

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WO2019219751A1 (en) * 2018-05-17 2019-11-21 Jahn, Thorsten Heating textile, method of production and use thereof
DE102019116568A1 (en) 2018-06-18 2019-12-19 Amperetex Gmbh Universally applicable, electrical heating network fabric and process for its production

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DE102015113921A1 (en) * 2015-08-21 2017-02-23 K.L. Kaschier- Und Laminier Gmbh Material web and heating element
FR3098370A1 (en) * 2019-07-02 2021-01-08 Valeo Systemes Thermiques Heating structure for motor vehicle

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CN100536040C (en) * 2002-06-19 2009-09-02 松下电器产业株式会社 Flexible PTC heating element and preparation method thereof
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GB0607234D0 (en) * 2006-04-11 2006-05-17 Richards Morphy N I Ltd Improvements in and relating to electric blankets
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Publication number Priority date Publication date Assignee Title
WO2019219751A1 (en) * 2018-05-17 2019-11-21 Jahn, Thorsten Heating textile, method of production and use thereof
CN112369118A (en) * 2018-05-17 2021-02-12 T·雅恩 Heat-generating textile, method for the production thereof and use thereof
EP3794905B1 (en) 2018-05-17 2023-05-24 Jahn, Thorsten Heating textile, its manufacturing process and its use
DE102019116568A1 (en) 2018-06-18 2019-12-19 Amperetex Gmbh Universally applicable, electrical heating network fabric and process for its production

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PT2844030E (en) 2016-02-15
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HUE027455T2 (en) 2016-09-28
EP2736304B1 (en) 2016-04-20
EP2844030A1 (en) 2015-03-04
EP2736304A1 (en) 2014-05-28

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