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EP4319484A1 - Lightweight composite panel - Google Patents

Lightweight composite panel Download PDF

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Publication number
EP4319484A1
EP4319484A1 EP23186962.9A EP23186962A EP4319484A1 EP 4319484 A1 EP4319484 A1 EP 4319484A1 EP 23186962 A EP23186962 A EP 23186962A EP 4319484 A1 EP4319484 A1 EP 4319484A1
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EP
European Patent Office
Prior art keywords
composite panel
lightweight composite
panel according
film layer
layer
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.)
Pending
Application number
EP23186962.9A
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German (de)
French (fr)
Inventor
Matthias Schilling
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SCHILLING, MATTHIAS
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Individual
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Filing date
Publication date
Priority claimed from DE102022130409.4A external-priority patent/DE102022130409B4/en
Application filed by Individual filed Critical Individual
Publication of EP4319484A1 publication Critical patent/EP4319484A1/en
Pending 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
    • H05B3/10—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
    • H05B3/12—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
    • H05B3/14—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material the material being non-metallic
    • H05B3/145—Carbon only, e.g. carbon black, graphite
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/26—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/26—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups
    • E04C2/284—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating
    • E04C2/296—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating composed of insulating material and non-metallic or unspecified sheet-material
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/44—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the purpose
    • E04C2/52—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the purpose with special adaptations for auxiliary purposes, e.g. serving for locating conduits
    • E04C2/521—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the purpose with special adaptations for auxiliary purposes, e.g. serving for locating conduits serving for locating conduits; for ventilating, heating or cooling
    • E04C2/525—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the purpose with special adaptations for auxiliary purposes, e.g. serving for locating conduits serving for locating conduits; for ventilating, heating or cooling for heating or cooling
    • 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
    • H05B3/22—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible
    • H05B3/26—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible heating conductor mounted on insulating base
    • H05B3/267—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible heating conductor mounted on insulating base the insulating base being an organic material, e.g. plastic
    • 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
    • H05B2203/026—Heaters specially adapted for floor heating
    • 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
    • H05B2203/032—Heaters specially adapted for heating by radiation heating

Definitions

  • the invention relates to a lightweight composite panel with a film layer that can be heated by electric current and has electrical contact sections and generates radiation in the infrared range, the film layer being embedded between other surface layer materials and at least partially surrounded by them in order to maintain the plate's inherent stability, according to the preamble of claim 1.
  • the DE 10 2007 041 767 A1 refers to resistance heating for room air conditioning in residential buildings.
  • heating layer on the front side of a panel, although it is alternatively possible to embed the heating layer in a laminate between other layers in order to have a visible side available for a painterly renovation or for gluing wallpaper.
  • the previously known plate comprises a base body made of a rigid, glass fiber reinforced carrier material with a heating layer applied thereto.
  • a heat reflection layer can be formed on the back of the plate.
  • This well-known fiberboard is made of cement.
  • the heating layer can be covered with fiber concrete.
  • underfloor heating after the DE 10 2008 050 669 A1 is assumed to be an electrically conductive material layer formed by fibers.
  • a synthetic resin or a natural resin is used as the carrier material.
  • planar heating element US 9,955,531 B2 A PTC element is used, which can be the subject of a plate-shaped composite. Clay is also used as a material.
  • Known heating foils also designed as PET carbon fiber foils, can be connected to classic plasterboard or laminated accordingly according to the state of the art, but plasterboard materials have significant disadvantages in terms of building physics with regard to the absorption of air moisture and its release into the room.
  • the object of the invention is solved by a lightweight composite panel according to the combination of features according to claim 1, the subclaims comprising at least expedient refinements and further developments.
  • the lightweight composite panel is based on a film layer that can be heated by electric current and has electrical contact sections and generates radiation in the infrared range.
  • this film layer is embedded between other surface layer materials and is at least partially surrounded by them, i.e. on the top and bottom.
  • the film layer that generates infrared radiation can have a perforation.
  • This film layer is covered on both sides with or by a thermoplastic, heat-activated adhesive fleece.
  • a clay/wood fiber mixture is then fixed to the front by heat-assisted pressing using a grid-like fabric, knitted fabric or non-woven material. Dry pressing can also be carried out with subsequent drying to increase stability.
  • a corresponding additional, insulating intermediate layer can consist of a cork material.
  • a nonwoven material or a fabric with the property of reflecting infrared radiation can be used.
  • the cover layer is then laminated via the mentioned adhesive fleece with the film layer that generates the IR radiation and is thereby connected.
  • the insulating cover layer may comprise a cork or cork-like material as a thermal barrier layer.
  • This layer can also be provided with a radiation-reflecting cover on the outside, for example in the form of an aluminum or PET aluminum foil.
  • the film layer that generates infrared radiation is preferably a PET carbon fiber film or fabric.
  • This film or fabric has the necessary contact sections in its edge areas for electrical contacting and for the necessary series or parallel connection.
  • the Contact areas are preferably accessible from the rear and are therefore concealed during assembly of the composite panel.
  • the composite described has at least one embedded temperature sensor per plate.
  • the temperature sensor can also have thermostatic properties, that is, by completely or partially interrupting the current flowing through the electrical film layer, it can avoid or prevent overheating, in particular local overheating.
  • the lightweight composite panel is preferably realized as a flat structure with a long side and a broad side, with at least one of the sides, preferably two opposite long sides, having an assembly line, particularly preferably as a groove line.
  • the adhesive fleece used begins to soften and enter the activated state from a temperature range of essentially 80°C to 100°C.
  • the temperature resistance of the existing PET carbon fiber film is in the range of up to 130°C. This means that damage to the PET carbon fiber film is excluded during heat-activated pressing or lamination.
  • the thickness of the clay/wood fiber layer is many times the thickness of the other layers.
  • the use of the presented lightweight composite panel for room air conditioning in ecologically sustainable housing and social buildings is also possible.
  • the lightweight composite panel according to the illustrations are just examples Figure 1 and 2 is based on a perforated, infrared radiation-generating film layer 3, which has electrical conductor tracks 4 on its longitudinal edges.
  • thermoplastic, heat-activated adhesive fleece 5 is located on the top side of the film layer 3.
  • thermoplastic, heat-activated adhesive fleece 2 On the underside of the film layer 3 there is another thermoplastic, heat-activated adhesive fleece 2.
  • the back can also have an insulating intermediate layer and a further layer 1 that reflects infrared radiation, for example in the form of an aluminum-PET film.
  • An exemplary grid-like jute fleece 6 is located above the thermoplastic, heat-activated adhesive fleece layer 5 and is used to create a solid bond with respect to the outside (outside top) forming clay-wood fiber mixture and the resulting layer 7.
  • a 2 to 3 mm thick cork layer can be used for back insulation, which may be laminated or covered with a radiation-reflecting film or fabric.
  • the Figure 3 shows a view of the carbon foil used with contact strips, connection surfaces and indicated connection wires in a partially rolled up state.
  • the Figure 4 shows an exploded view of a second embodiment of the lightweight composite panel.
  • a film layer 3 that generates infrared radiation is again assumed.
  • This film layer 3 has electrical conductor tracks 4 on its longitudinal edges, e.g. B. designed as a 2 cm wide copper strip.
  • the film layer 3 is covered on the top side by a thermoplastic, heat-activated adhesive fleece 5.
  • a grid-like fleece in particular jute fleece 6, is located above the thermoplastic, heat-activatable adhesive fleece layer 5.
  • This fleece 6 serves to create a solid bond based on the clay-wood fiber mixture forming the outer surface and the resulting layer 7.
  • thermoplastic heat-activated adhesive fleece 2 on the underside of the film layer 3.
  • a cork material 9 serves as an ecological heat barrier layer.
  • the lightweight composite panel described combines the advantages of the natural clay material, including untreated wood fibers, with the advantages of a partially controllable infrared surface heating through the film used.
  • the thickness of the clay-wood fiber mixture layer is in the range between 15 and 30 mm in an exemplary composite panel. It has been shown that the radiant energy generated by the foils of the carbon fiber layer penetrates the clay/wood fiber layer, with the surface temperature of the entire composite panel being in such a range that a pleasant indoor climate is created when used in residential and social construction.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Sustainable Development (AREA)
  • Laminated Bodies (AREA)

Abstract

Die Erfindung betrifft eine Leichtbau-Verbundplatte mit einer durch elektrischen Strom aufheizbaren, im infraroten Bereich Strahlung erzeugenden, elektrische Kontaktabschnitte aufweisenden Folienschicht, wobei die Folienschicht zum Erhalt einer Platteneigenstabilität zwischen weiteren Flächenschichtmaterialien eingebettet und von diesen mindestens teilweise umgeben ist. Die infrarote Strahlung erzeugende Folienschicht kann eine Perforation aufweisen und ist beidseitig mit einem thermoplastischen, wärmeaktivierbaren Klebevlies bedeckt. Weiterhin ist auf der Vorderseite unter Nutzung eines gitterartigen Gewebes, Gewirkes oder Vliesmaterials ein Lehm-/Holzfasergemisch befindlich.

Figure imgaf001
The invention relates to a lightweight composite panel with a film layer that can be heated by electric current and has electrical contact sections and generates radiation in the infrared range, the film layer being embedded between other surface layer materials and at least partially surrounded by them in order to maintain the plate's intrinsic stability. The film layer that generates infrared radiation can have a perforation and is covered on both sides with a thermoplastic, heat-activated adhesive fleece. Furthermore, there is a clay/wood fiber mixture on the front using a grid-like fabric, knitted fabric or non-woven material.
Figure imgaf001

Description

Die Erfindung betrifft eine Leichtbau-Verbundplatte mit einer durch elektrischen Strom aufheizbaren, im infraroten Bereich Strahlung erzeugenden, elektrische Kontaktabschnitte aufweisenden Folienschicht, wobei die Folienschicht zum Erhalt einer Platteneigenstabilität zwischen weiteren Flächenschichtmaterialien eingebettet und von diesen wenigstens teilweise umgeben ist, gemäß Oberbegriff des Anspruches 1.The invention relates to a lightweight composite panel with a film layer that can be heated by electric current and has electrical contact sections and generates radiation in the infrared range, the film layer being embedded between other surface layer materials and at least partially surrounded by them in order to maintain the plate's inherent stability, according to the preamble of claim 1.

Aus der CN 201658068 U ist ein elektrisch beheizbares Ziegelbett vorbekannt, wobei elektrische Heizdrähte auf der durch Ziegel gebildeten Bettfläche angebracht sind. Bei den Ziegeln kann es sich um sonnengetrocknete, sogenannte Lehmziegel handeln.From the CN 201658068 U An electrically heatable brick bed is previously known, with electrical heating wires being attached to the bed surface formed by bricks. The bricks can be sun-dried, so-called clay bricks.

Die DE 10 2007 041 767 A1 bezieht sich auf eine Widerstandsheizung zur Raumklimatisierung in Wohngebäuden.The DE 10 2007 041 767 A1 refers to resistance heating for room air conditioning in residential buildings.

Auf der dortigen Vorderseite einer Platte ist eine Heizschicht vorhanden, wobei alternativ die Möglichkeit besteht, die Heizschicht laminatförmig zwischen weiteren Schichten einzubetten, um eine Ansichtsseite für eine malermäßige Renovierung oder zum Kleben von Tapeten zur Verfügung zu haben.There is a heating layer on the front side of a panel, although it is alternatively possible to embed the heating layer in a laminate between other layers in order to have a visible side available for a painterly renovation or for gluing wallpaper.

Die vorbekannte Platte umfasst einen Grundkörper aus einem starren, glasfaserverstärkten Trägermaterial mit darauf aufgebrachter Heizschicht. Ergänzend kann eine Wärmereflektionsschicht auf der Rückseite der Platte ausgebildet werden.The previously known plate comprises a base body made of a rigid, glass fiber reinforced carrier material with a heating layer applied thereto. In addition, a heat reflection layer can be formed on the back of the plate.

Diese bekannte Faserplatte besteht aus Zement. Alternativ kann die Heizschicht mittels Faserbeton umhüllt werden.This well-known fiberboard is made of cement. Alternatively, the heating layer can be covered with fiber concrete.

Bei der Flächenheizung nach der DE 10 2008 050 669 A1 wird von einer durch Fasern gebildeten elektrisch leitfähigen Materialschicht ausgegangen. Die dortige Struktur soll nicht nur als Rollbahn, sondern auch als Platte zur Verfügung stehen. Als Trägermaterial kommt ein Kunstharz oder ein Naturharz zur Anwendung.With underfloor heating after the DE 10 2008 050 669 A1 is assumed to be an electrically conductive material layer formed by fibers. The structure there should not only be available as a runway, but also as a slab. A synthetic resin or a natural resin is used as the carrier material.

Bei der Heizvorrichtung mit einer Heizfarbe nach der DE 20 2014 009 744 U1 wird eine Schutzschicht in Form von Lehm oder einem Lehmputz aufgebracht.For the heating device with a heating color according to the DE 20 2014 009 744 U1 A protective layer in the form of clay or a clay plaster is applied.

Bei dem planaren Heizelement nach US 9,955,531 B2 kommt ein PTC-Element zum Einsatz, welches Gegenstand eines plattenförmigen Verbundes sein kann. Auch Lehm findet als Werkstoff Anwendung.With the planar heating element US 9,955,531 B2 A PTC element is used, which can be the subject of a plate-shaped composite. Clay is also used as a material.

Den vorbekannten Lösungen ist gemein, dass zumindest teilweise Baustoffe und Materialien zum Einsatz kommen, die für einen ökologischen Baustoff oder entsprechende Bauvorhaben nicht geeignet sind.What the previously known solutions have in common is that at least some building materials and materials are used that are not suitable for ecological building materials or corresponding building projects.

Bekannte Heizfolien, auch ausgebildet als PET-Karbonfaserfolien, können zwar gemäß dem Stand der Technik mit klassischen Gipskartonplatten verbunden bzw. entsprechend aufkaschiert werden, Gipskartonmaterialien weisen jedoch bauphysikalisch im Hinblick auf die Absorption von Luftfeuchte und deren Abgabe in den Raum erhebliche Nachteile auf.Known heating foils, also designed as PET carbon fiber foils, can be connected to classic plasterboard or laminated accordingly according to the state of the art, but plasterboard materials have significant disadvantages in terms of building physics with regard to the absorption of air moisture and its release into the room.

Aus dem Vorgenannten ist es daher Aufgabe der Erfindung, eine weiterentwickelte Leichtbau-Verbundplatte mit einer durch elektrischen Strom aufheizbaren, im infraroten Bereich Strahlung erzeugenden, elektrische Kontaktabschnitte aufweisenden Folienschicht anzugeben, welche ausreichend Eigenstabil ist, die mit bekannten handwerklichen Techniken verarbeiten werden kann und die darüber hinaus in der Herstellung und damit auch in der Anwendung kostengünstig ist.From the foregoing, it is therefore the object of the invention to provide a further developed lightweight composite panel with a film layer that can be heated by electric current, generates radiation in the infrared range, and has electrical contact sections, which is sufficiently inherently stable, which can be processed using known craft techniques and the above In addition, it is cost-effective to produce and therefore also to use.

Die Lösung der Aufgabe der Erfindung erfolgt durch eine Leichtbau-Verbundplatte gemäß der Merkmalskombination nach Anspruch 1, wobei die Unteransprüche mindestens zweckmäßige Ausgestaltungen und Weiterbildungen umfassen.The object of the invention is solved by a lightweight composite panel according to the combination of features according to claim 1, the subclaims comprising at least expedient refinements and further developments.

Gemäß dem eingangs geschilderten Stand der Technik geht die Leichtbau-Verbundplatte von einer, durch elektrischen Strom aufheizbaren, im infraroten Bereich Strahlung erzeugenden, elektrische Kontaktabschnitte aufweisenden Folienschicht aus. Diese Folienschicht ist zum Erhalt einer Platteneigenstabilität sowie zum Schutz zwischen weiteren Flächenschichtmaterialien eingebettet und von diesen mindestens teilweise, das heißt ober- und unterseitig umgeben.According to the prior art described at the beginning, the lightweight composite panel is based on a film layer that can be heated by electric current and has electrical contact sections and generates radiation in the infrared range. In order to maintain the plate's inherent stability and for protection, this film layer is embedded between other surface layer materials and is at least partially surrounded by them, i.e. on the top and bottom.

Erfindungsgemäß kann die infrarote Strahlung erzeugende Folienschicht eine Perforation aufweisen. Diese Folienschicht wird beidseitig mit bzw. durch ein thermoplastisches, wärmeaktivierbares Klebevlies bedeckt.According to the invention, the film layer that generates infrared radiation can have a perforation. This film layer is covered on both sides with or by a thermoplastic, heat-activated adhesive fleece.

Auf der Vorderseite wird dann unter Nutzung eines gitterartigen Gewebes, Gewirkes oder Vliesmaterials ein Lehm-/Holzfasergemisch durch wärmeunterstütztes Aufpressen fixiert. Ebenso kann ein trockenes Verpressen mit anschließendem stabilitätserhöhenden Trocknen erfolgen.A clay/wood fiber mixture is then fixed to the front by heat-assisted pressing using a grid-like fabric, knitted fabric or non-woven material. Dry pressing can also be carried out with subsequent drying to increase stability.

Ergänzend besteht die Möglichkeit, die Rückseite des oben geschilderten Verbundes mit einer infrarote Strahlung reflektierenden weiteren Schicht, ausgeführt als Abdeckschicht zu versehen. Eine diesbezügliche zusätzliche, isolierende Zwischenschicht kann aus einem Korkmaterial bestehen.In addition, there is the possibility of providing the back of the composite described above with a further layer that reflects infrared radiation, designed as a cover layer. A corresponding additional, insulating intermediate layer can consist of a cork material.

Grundsätzlich kann auf ein Vliesmaterial oder ein Gewebe mit der Eigenschaft, infrarote Strahlung zu reflektieren, zurückgegriffen werden.In principle, a nonwoven material or a fabric with the property of reflecting infrared radiation can be used.

Die Abdeckschicht wird dann über das erwähnte Klebevlies mit der die IR-Strahlung erzeugenden Folienschicht laminiert und hierdurch verbunden.The cover layer is then laminated via the mentioned adhesive fleece with the film layer that generates the IR radiation and is thereby connected.

Alternativ kann die isolierende Abdeckschicht ein Kork- oder korkähnliches Material als Wärmesperrschicht umfassen. Diese Schicht kann zusätzlich nach Außen mit einer strahlungsreflektierenden Abdeckung versehen sein, z.B. in Form einer Aluminium- oder PET-Aluminiumfolie.Alternatively, the insulating cover layer may comprise a cork or cork-like material as a thermal barrier layer. This layer can also be provided with a radiation-reflecting cover on the outside, for example in the form of an aluminum or PET aluminum foil.

Bei der infrarote Strahlung erzeugenden Folienschicht handelt es sich bevorzugt um eine PET-Karbonfaserfolie oder -gewebe. Diese Folie oder das Gewebe weist in ihren Randbereichen die notwendigen Kontaktabschnitte zur elektrischen Kontaktierung und zur notwendigen Reihen- bzw. Parallelschaltung auf. Die Kontaktbereiche sind bevorzugt rückseitig zugänglich und mithin bei der Montage der Verbundplatte verdeckt ausgeführt.The film layer that generates infrared radiation is preferably a PET carbon fiber film or fabric. This film or fabric has the necessary contact sections in its edge areas for electrical contacting and for the necessary series or parallel connection. The Contact areas are preferably accessible from the rear and are therefore concealed during assembly of the composite panel.

Der beschriebene Verbund weist mindestens einen eingebetteten Temperaturfühler je Platte auf. Der Temperaturfühler kann auch thermostatische Eigenschaften aufweisen, das heißt durch vollständige oder teilweise Unterbrechung des durch elektrische Folienschicht fließenden Stromes eine Überhitzung, insbesondere lokale Überhitzungen vermeiden oder verhindern.The composite described has at least one embedded temperature sensor per plate. The temperature sensor can also have thermostatic properties, that is, by completely or partially interrupting the current flowing through the electrical film layer, it can avoid or prevent overheating, in particular local overheating.

Die Leichtbau-Verbundplatte ist bevorzugt als ein Flächengebilde mit einer Längsseite und einer Breitseite realisiert, wobei mindestens eine der Seiten, bevorzugt zwei gegenüberliegende Längsseiten, eine Montagelinie, insbesondere bevorzugt als Nutlinie, besitzen.The lightweight composite panel is preferably realized as a flat structure with a long side and a broad side, with at least one of the sides, preferably two opposite long sides, having an assembly line, particularly preferably as a groove line.

Das eingesetzte Klebevlies beginnt ab einem Temperaturbereich von im Wesentlichen 80°C bis 100°C zu erweichen und in den aktivierten Zustand überzugehen.The adhesive fleece used begins to soften and enter the activated state from a temperature range of essentially 80°C to 100°C.

Die Temperaturbeständigkeit der vorhandenen PET-Karbonfaserfolie liegt im Bereich von bis zu 130°C. Dies bedeutet, dass beim wärmeaktivierten Verpressen bzw. Laminieren eine Schädigung der PET-Karbonfaserfolie ausgeschlossen wird.The temperature resistance of the existing PET carbon fiber film is in the range of up to 130°C. This means that damage to the PET carbon fiber film is excluded during heat-activated pressing or lamination.

Die Dicke der Lehm-/Holzfaserschicht beträgt ein Vielfaches der Dicke der übrigen Schichten.The thickness of the clay/wood fiber layer is many times the thickness of the other layers.

Verfahrenstechnisch ist es möglich, eine Lehm-/Holzfasergrundplatte mit einem vorgefertigten Verbund aus der infrarote Strahlung erzeugenden Folienschicht, dem Klebevlies und dem Gittervlies zu verpressen.In terms of process technology, it is possible to press a clay/wood fiber base plate with a prefabricated composite consisting of the infrared radiation-generating film layer, the adhesive fleece and the mesh fleece.

Erfindungsgemäß ist weiterhin die Verwendung der vorgestellten Leichtbau-Verbundplatte zur Raumklimatisierung im ökologisch nachhaltigen Wohnungs- und Gesellschaftsbau.According to the invention, the use of the presented lightweight composite panel for room air conditioning in ecologically sustainable housing and social buildings is also possible.

Die Erfindung soll nachstehend anhand von Ausführungsbeispielen sowie unter Nutzung von Figuren näher erläutert werden.The invention will be explained in more detail below using exemplary embodiments and figures.

Hierbei zeigen:

Fig. 1
einen Querschnitt durch eine beispielhafte Leichtbau-Verbundplatte gemäß erstem Ausführungsbeispiel;
Fig. 2
eine Explosivdarstellung einer beispielhaften Leichtbau-Verbundplatte nach dem ersten Ausführungsbeispiel mit den einzelnen maßgeblichen Schichten;
Fig. 3
eine beispielhafte Darstellung eines Abschnittes der bevorzugt eingesetzten PET-Karbonfaserfolie mit in den Längsbereichen angeordneten Leiterbahnen sowie Kontaktflächen und angedeuteten Anschlusskabeln (teilweise aufgerollter Zustand) und
Fig. 4
eine Explosivdarstellung einer Leichtbau-Verbundplatte gemäß zweitem Ausführungsbeispiel.
Show here:
Fig. 1
a cross section through an exemplary lightweight composite panel according to the first exemplary embodiment;
Fig. 2
an exploded view of an exemplary lightweight composite panel according to the first exemplary embodiment with the individual relevant layers;
Fig. 3
an exemplary representation of a section of the preferably used PET carbon fiber film with conductor tracks arranged in the longitudinal areas as well as contact surfaces and indicated connection cables (partially rolled up state) and
Fig. 4
an exploded view of a lightweight composite panel according to the second exemplary embodiment.

Die Leichtbau-Verbundplatte gemäß den lediglich beispielhaften Darstellungen nach Figur 1 und 2 geht von einer perforierten, infrarote Strahlung erzeugenden Folienschicht 3 aus, die an ihren Längskanten elektrische Leiterbahnen 4 besitzt.The lightweight composite panel according to the illustrations are just examples Figure 1 and 2 is based on a perforated, infrared radiation-generating film layer 3, which has electrical conductor tracks 4 on its longitudinal edges.

Oberseitig der Folienschicht 3 ist ein thermoplastisches, wärmeaktivierbares Klebevlies 5 befindlich.A thermoplastic, heat-activated adhesive fleece 5 is located on the top side of the film layer 3.

Unterseitig der Folienschicht 3 befindet sich ein weiteres, thermoplastisches wärmeaktivierbares Klebevlies 2.On the underside of the film layer 3 there is another thermoplastic, heat-activated adhesive fleece 2.

Bei einer bevorzugten Ausführungsform der erfindungsgemäßen Leichtbau-Verbundplatte kann die Rückseite noch eine isolierende Zwischenschicht und eine infrarote Strahlung reflektierende weitere Schicht 1, zum Beispiel ausgeführt als Alu-PET-Folie, besitzen.In a preferred embodiment of the lightweight composite panel according to the invention, the back can also have an insulating intermediate layer and a further layer 1 that reflects infrared radiation, for example in the form of an aluminum-PET film.

Ein beispielhaft ausgeführtes, gitterartiges Jutevlies 6 befindet sich oberhalb der thermoplastischen, wärmeaktivierbaren Klebevliesschicht 5 und dient dem Herstellen eines festen Verbundes bezogen auf das die Außenseite (Außenoberseite) bildende Lehm-Holzfasergemisch und die hierdurch entstehende Schicht 7.An exemplary grid-like jute fleece 6 is located above the thermoplastic, heat-activated adhesive fleece layer 5 and is used to create a solid bond with respect to the outside (outside top) forming clay-wood fiber mixture and the resulting layer 7.

Durch ein Verpressen und ggf. anschließender Trocknung bildet sich ein stabiler Verbund aus, so dass im Ergebnis eine Platte entsteht, die mit üblichen Methoden verarbeitet transportiert, befestigt und allgemein gehandhabt werden kann.By pressing and, if necessary, subsequent drying, a stable bond is formed, so that the result is a panel that can be processed, transported, fastened and generally handled using conventional methods.

Zur rückseitigen Isolation kann alternativ oder ergänzend eine z.B. 2 bis 3 mm starke Korkschicht eingesetzt werden, welche ggf. mit einer strahlungsreflektierenden Folie oder Gewebe kaschiert bzw. abgedeckt ist.Alternatively or additionally, a 2 to 3 mm thick cork layer can be used for back insulation, which may be laminated or covered with a radiation-reflecting film or fabric.

Die Figur 3 zeigt eine Ansicht der zum Einsatz kommenden Karbonfolie mit Kontaktstreifen, Anschlussflächen und angedeuteten Anschlussdrähten in noch teilweise aufgerolltem Zustand.The Figure 3 shows a view of the carbon foil used with contact strips, connection surfaces and indicated connection wires in a partially rolled up state.

Die Figur 4 zeigt eine Explosivdarstellung eines zweiten Ausführungsbeispieles der Leichtbau-Verbundplatte.The Figure 4 shows an exploded view of a second embodiment of the lightweight composite panel.

Bei der Verbundplatte gemäß dem zweiten Ausführungsbeispiel wird wiederum von einer infrarote Strahlung erzeugenden Folienschicht 3 ausgegangen. Diese Folienschicht 3 besitzt an ihren Längskanten elektrische Leiterbahnen 4, z. B. ausgeführt als 2 cm breiter Kupferstreifen.In the composite panel according to the second exemplary embodiment, a film layer 3 that generates infrared radiation is again assumed. This film layer 3 has electrical conductor tracks 4 on its longitudinal edges, e.g. B. designed as a 2 cm wide copper strip.

Die Folienschicht 3 wird oberseitig von einem thermoplastischen, wärmeaktivierbaren Klebevlies 5 abgedeckt.The film layer 3 is covered on the top side by a thermoplastic, heat-activated adhesive fleece 5.

Wie auch beim ersten Ausführungsbeispiel ist ein gitterartiges Vlies, insbesondere Jutevlies 6 oberhalb der thermoplastischen, wärmeaktivierbaren Klebevliesschicht 5 befindlich.As in the first exemplary embodiment, a grid-like fleece, in particular jute fleece 6, is located above the thermoplastic, heat-activatable adhesive fleece layer 5.

Dieses Vlies 6 dient dem Herstellen eines festen Verbundes bezogen auf das die Außenoberseite bildende Lehm-Holzfasergemisch und die hierdurch entstehende Schicht 7.This fleece 6 serves to create a solid bond based on the clay-wood fiber mixture forming the outer surface and the resulting layer 7.

Unterseitig der Folienschicht 3 befindet sich auch beim zweiten Ausführungsbeispiel ein weiteres, thermoplastisches wärmeaktivierbares Klebevlies 2.In the second exemplary embodiment, there is also a further thermoplastic heat-activated adhesive fleece 2 on the underside of the film layer 3.

Beim zweiten Ausführungsbeispiel dient ein Korkmaterial 9 als ökologische Wärme-Sperrschicht.In the second exemplary embodiment, a cork material 9 serves as an ecological heat barrier layer.

Das Korkmaterial 9, z. B. in einer Schichtdicke von 2 mm bis 3 mm, befindet sich eingebettet zwischen den Klebevliesschichten 2, wobei rückseitig eine infrarote Strahlung reflektierende weitere Schicht 1, z. B. auch hier ausgebildet als PET-Alufolie vorhanden ist.The cork material 9, e.g. B. in a layer thickness of 2 mm to 3 mm, is embedded between the adhesive fleece layers 2, with another layer 1 reflecting infrared radiation on the back, e.g. B. is also available here in the form of PET aluminum foil.

Die beschriebene Leichtbau-Verbundplatte kombiniert die Vorteile aus dem natürlichen Werkstofflehm einschließlich unbehandelten Holzfasern mit den Vorteilen einer partiell ansteuerbaren Infrarot-Flächenheizung durch die eingesetzte Folie. Die Dicke der Lehm-Holzfaser-Gemischschicht liegt bei einer beispielhaften Verbundplatte im Bereich zwischen 15 und 30 mm. Es hat sich gezeigt, dass die Folien der Karbonfaserschicht erzeugte Strahlungsenergie die Lehm-/Holzfaserschicht durchdringt, wobei die Oberflächentemperatur der gesamten Verbundplatte in einem solchen Bereich liegt, dass es bei der Verwendung im Wohnungs- und Gesellschaftsbau zu einem angenehmen Raumklima kommt.The lightweight composite panel described combines the advantages of the natural clay material, including untreated wood fibers, with the advantages of a partially controllable infrared surface heating through the film used. The thickness of the clay-wood fiber mixture layer is in the range between 15 and 30 mm in an exemplary composite panel. It has been shown that the radiant energy generated by the foils of the carbon fiber layer penetrates the clay/wood fiber layer, with the surface temperature of the entire composite panel being in such a range that a pleasant indoor climate is created when used in residential and social construction.

Claims (13)

Leichtbau-Verbundplatte mit einer durch elektrischen Strom aufheizbaren, im infraroten Bereich Strahlung erzeugenden, elektrische Kontaktabschnitte (4) aufweisenden Folienschicht (3), wobei die Folienschicht (3) zum Erhalt einer Platteneigenstabilität zwischen weiteren Folienschichtmaterialien eingebettet und von diesen mindestens teilweise umgeben ist,
dadurch gekennzeichnet, dass
die infrarote Strahlung erzeugende Folienschicht (3) beidseitig mit einem thermoplastischem, wärmeaktivierbaren Klebevlies (2; 5) bedeckt und weiterhin auf einer Vorderseite unter Nutzung eines gitterartigen Gewebes, Gewirkes oder Vliesmaterials (6) ein Lehm-/Holzfasergemisch (7) durch, ggf. wärmeunterstütztes, Aufpressen fixiert ist.Lightweight composite panel with a film layer (3) which can be heated by electric current and which generates radiation in the infrared range and which has electrical contact sections (4), the film layer (3) being embedded between other film layer materials and at least partially surrounded by them in order to maintain the plate's intrinsic stability,
characterized in that
the infrared radiation-generating film layer (3) is covered on both sides with a thermoplastic, heat-activatable adhesive fleece (2; 5) and furthermore a clay/wood fiber mixture (7) on one front using a grid-like fabric, knitted fabric or non-woven material (6), if necessary. heat-assisted pressing is fixed. Leichtbau-Verbundplatte nach Anspruch 1,
dadurch gekennzeichnet, dass
die Rückseite des Verbundes eine infrarote Strahlung reflektierende weitere Abdeckschicht (1) aufweist.Lightweight composite panel according to claim 1,
characterized in that
the back of the composite has a further cover layer (1) that reflects infrared radiation. Leichtbau-Verbundplatte nach Anspruch 1 und 2,
dadurch gekennzeichnet, dass
die Abdeckschicht (1) über das Klebevlies (2) mit der Folienschicht (3) laminiert und verbunden ist.Lightweight composite panel according to claims 1 and 2,
characterized in that
the cover layer (1) is laminated and connected to the film layer (3) via the adhesive fleece (2). Leichtbau-Verbundplatte nach einem der vorangegangenen Ansprüche,
dadurch gekennzeichnet, dass
die infrarote Strahlung erzeugende Folienschicht (3) vorzugsweise als eine PET-Karbonfaserfolie ausgebildet ist.Lightweight composite panel according to one of the preceding claims,
characterized in that
the infrared radiation-generating film layer (3) is preferably designed as a PET carbon fiber film. Leichtbau-Verbundplatte nach einem der vorangegangenen Ansprüche,
dadurch gekennzeichnet, dass
der Verbund mindestens einen eingebetteten Temperaturfühler aufweist.Lightweight composite panel according to one of the preceding claims,
characterized in that
the composite has at least one embedded temperature sensor. Leichtbau-Verbundplatte nach einem der vorangegangenen Ansprüche,
dadurch gekennzeichnet, dass diese ein Flächengebilde mit einer Längsseite und einer Breitseite ist, wobei mindestens eine der Seiten, bevorzugt beide Seiten, eine Montagelinie, insbesondere Nutlinie, besitzt. Lightweight composite panel according to one of the preceding claims,
characterized in that this is a flat structure with a long side and a broad side, wherein at least one of the sides, preferably both sides, has an assembly line, in particular a groove line. Leichtbau-Verbundplatte nach einem der vorangegangenen Ansprüche,
dadurch gekennzeichnet, dass
das Klebevlies (2; 5) in einem Bereich von im Wesentlichen ab 80°C, insbesondere im Bereich zwischen 80°C und 100°C aktivierbar ist.Lightweight composite panel according to one of the preceding claims,
characterized in that
the adhesive fleece (2; 5) can be activated in a range essentially from 80°C, in particular in the range between 80°C and 100°C. Leichtbau-Verbundplatte nach einem der vorangegangenen Ansprüche,
dadurch gekennzeichnet, dass
die Dicke der Lehm-/Holzfaserschicht (7) ein Vielfaches der Dicke der übrigen Schichten beträgt.Lightweight composite panel according to one of the preceding claims,
characterized in that
the thickness of the clay/wood fiber layer (7) is a multiple of the thickness of the other layers. Leichtbau-Verbundplatte nach einem der vorangegangenen Ansprüche,
dadurch gekennzeichnet, dass
eine, auch vorgefertigte, Lehm-/Holzfasergemischplatte mit einem Verbund aus der infraroten Strahlung erzeugenden Gewebe- oder Folienschicht (3), Klebevlies (5) und Gittervlies (6) verpresst ist.Lightweight composite panel according to one of the preceding claims,
characterized in that
a clay/wood fiber mixture panel, also prefabricated, is pressed with a composite of the fabric or film layer (3) that generates infrared radiation, adhesive fleece (5) and mesh fleece (6). Leichtbau-Verbundplatte nach einem der vorangegangenen Ansprüche,
dadurch gekennzeichnet, dass
die Folienschicht (3) eine Perforation besitzt.Lightweight composite panel according to one of the preceding claims,
characterized in that
the film layer (3) has a perforation. Leichtbau-Verbundplatte nach einem der Ansprüche 1, 2 oder 4 bis 10,
dadurch gekennzeichnet, dass
zwischen dem Klebevlies (2) und der Abdeckschicht (1) eine Wärme-Sperrschicht (9), insbesondere eine Korkschicht, angeordnet ist.Lightweight composite panel according to one of claims 1, 2 or 4 to 10,
characterized in that
A heat barrier layer (9), in particular a cork layer, is arranged between the adhesive fleece (2) and the cover layer (1). Leichtbau-Verbundplatte nach Anspruch 11,
dadurch gekennzeichnet, dass
die Wärme-Sperrschicht (9) zwischen zwei Klebevliesschichten (2) eingebettet ist.Lightweight composite panel according to claim 11,
characterized in that
the heat barrier layer (9) is embedded between two adhesive fleece layers (2). Verwendung einer Leichtbau-Verbundplatte nach mindestens einem der vorangegangenen Ansprüche zur Raumklimatisierung im ökologisch nachhaltigen Wohnungs- und Gesellschaftsbau.Use of a lightweight composite panel according to at least one of the preceding claims for room air conditioning in ecologically sustainable housing and social construction.
EP23186962.9A 2022-07-27 2023-07-21 Lightweight composite panel Pending EP4319484A1 (en)

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DE102022118891 2022-07-27
DE102022128372 2022-10-26
DE102022130409.4A DE102022130409B4 (en) 2022-07-27 2022-11-17 Lightweight composite panel and use of this

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3922465C2 (en) * 1988-07-08 1996-08-22 Nippon Basic Technology Lab Electrically heated flooring
DE102007041767A1 (en) 2007-09-04 2009-04-16 Schürmann, Heinrich One-man plate for use with electrical resistance heating and rigid fiber-reinforced fiber board for air conditioning in apartment and building, has electrically conductive heating layer that is heated by current
DE102008050669A1 (en) 2008-09-30 2010-04-01 Ostmann, Daniel Flat heater with a flat support, a layer of electrically conducting fibres and contact points for applied voltage, used, e.g. as heating tape for ceilings, walls and floors, for heating containers or for deicing
CN201658068U (en) 2010-03-27 2010-12-01 李星 Electric heating farm brick bed
DE202014009744U1 (en) 2014-12-02 2015-03-24 Michael Plasch Heating paint, heating paint, heating varnish, heating plaster, heating device
EP3197242A1 (en) * 2016-01-19 2017-07-26 Gossmann GmbH Infrared heater
US9955531B2 (en) 2014-06-18 2018-04-24 Suk Hwan KANG Manufacturing method of PTC element using polymer aqueous emulsion conductive composite, PTC element manufactured by manufacturing method, and planar heating element including PTC element
DE102021106217A1 (en) * 2021-03-15 2022-09-15 Enno Klaus Henze Surface heating element and method for its manufacture

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3922465C2 (en) * 1988-07-08 1996-08-22 Nippon Basic Technology Lab Electrically heated flooring
DE102007041767A1 (en) 2007-09-04 2009-04-16 Schürmann, Heinrich One-man plate for use with electrical resistance heating and rigid fiber-reinforced fiber board for air conditioning in apartment and building, has electrically conductive heating layer that is heated by current
DE102008050669A1 (en) 2008-09-30 2010-04-01 Ostmann, Daniel Flat heater with a flat support, a layer of electrically conducting fibres and contact points for applied voltage, used, e.g. as heating tape for ceilings, walls and floors, for heating containers or for deicing
CN201658068U (en) 2010-03-27 2010-12-01 李星 Electric heating farm brick bed
US9955531B2 (en) 2014-06-18 2018-04-24 Suk Hwan KANG Manufacturing method of PTC element using polymer aqueous emulsion conductive composite, PTC element manufactured by manufacturing method, and planar heating element including PTC element
DE202014009744U1 (en) 2014-12-02 2015-03-24 Michael Plasch Heating paint, heating paint, heating varnish, heating plaster, heating device
EP3197242A1 (en) * 2016-01-19 2017-07-26 Gossmann GmbH Infrared heater
DE102021106217A1 (en) * 2021-03-15 2022-09-15 Enno Klaus Henze Surface heating element and method for its manufacture

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