EP3740030A2 - Surface heating element - Google Patents
Surface heating element Download PDFInfo
- Publication number
- EP3740030A2 EP3740030A2 EP20152880.9A EP20152880A EP3740030A2 EP 3740030 A2 EP3740030 A2 EP 3740030A2 EP 20152880 A EP20152880 A EP 20152880A EP 3740030 A2 EP3740030 A2 EP 3740030A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- heating element
- heating
- element according
- carrier
- surface heating
- 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
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 87
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims abstract description 4
- 239000011231 conductive filler Substances 0.000 claims abstract description 4
- 239000010410 layer Substances 0.000 claims description 31
- 239000004020 conductor Substances 0.000 claims description 7
- 239000000853 adhesive Substances 0.000 claims description 6
- 230000001070 adhesive effect Effects 0.000 claims description 6
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 5
- 239000012790 adhesive layer Substances 0.000 claims description 5
- 239000004814 polyurethane Substances 0.000 claims description 5
- 229910052709 silver Inorganic materials 0.000 claims description 5
- 239000004332 silver Substances 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 239000006185 dispersion Substances 0.000 claims description 4
- 229910002804 graphite Inorganic materials 0.000 claims description 4
- 239000010439 graphite Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 125000006850 spacer group Chemical group 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000006229 carbon black Substances 0.000 claims description 2
- 239000002077 nanosphere Substances 0.000 claims description 2
- 229920002635 polyurethane Polymers 0.000 claims description 2
- 239000000945 filler Substances 0.000 claims 1
- 239000002245 particle Substances 0.000 description 6
- 229920003009 polyurethane dispersion Polymers 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 239000011888 foil Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920000058 polyacrylate Polymers 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 235000019241 carbon black Nutrition 0.000 description 1
- 239000002482 conductive additive Substances 0.000 description 1
- 239000004815 dispersion polymer Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000005338 heat storage Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Images
Classifications
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- 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
-
- 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
- H05B3/02—Details
- H05B3/06—Heater elements structurally combined with coupling elements or holders
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
- H05B3/34—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater flexible, e.g. heating nets or webs
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
- H05B2203/013—Heaters using resistive films or coatings
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
- H05B2203/029—Heaters specially adapted for seat warmers
-
- 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
- H05B2214/00—Aspects relating to resistive heating, induction heating and heating using microwaves, covered by groups H05B3/00, H05B6/00
- H05B2214/04—Heating means manufactured by using nanotechnology
Definitions
- the invention relates to a surface heating element with a flexible carrier.
- Such film heaters are already known.
- the known heaters have meander-shaped conductor tracks that are printed on a film and that heat up when a current flows.
- These flexible heating foils can be used, for example, to heat vehicle interiors and / or vehicle seats. Thanks to the flexible carrier, the heaters can also be easily attached to molded parts such as the interior trim of vehicles or seats.
- Foil heating in the form of surface heating has also been used to heat rooms. The temperatures achievable with the previous heaters were not, however, satisfactory.
- the invention is based on the object of proposing a surface heating element with which higher temperatures can also be achieved and which is easy to manufacture.
- a surface heating element with a flexible carrier on which a heating surface is applied which is characterized in that the heating surface is formed from at least one heating paste based on acrylate or PU with conductive fillers.
- the heating element according to the invention has a heating surface and can therefore achieve higher and more uniform temperatures than known foil heating elements.
- Another advantage of a heating surface compared to meander-shaped heating conductors is that mechanical damage to the heating surface does not lead to a total failure of the heating element, as occurs when heating conductors are severed.
- the heating surface can be produced in any shape and size and thus optimally adapted to the particular application of the heating element.
- the conductive fillers of the heating pastes can preferably be carbon blacks, metal flakes, graphite and / or silver nanospheres.
- the heating surface is formed by several layers of heating pastes.
- the multi-layer structure ensures a high heat storage capacity.
- the layers are flexible and mechanically very stable, so that even strong bending of the carrier does not lead to the paste layers becoming detached.
- control electronics for the heating surface In addition to the heating surface, electronic components of control electronics for the heating surface, conductor tracks, LEDs, sensors and / or contacts can also be applied to the carrier. Alternatively, these elements of the control electronics can of course also be arranged separately and away from the heating surface. In addition to the heating surface, only contacts are applied to the carrier in this case.
- the electronic components can be printed, glued, soldered or riveted or pressed onto the carrier. These elements can also be placed on the carrier with the aid of automatic placement machines.
- the carrier can preferably be made of siliconized paper or a PE film. These materials have sufficient tear strength and high flexibility at the same time.
- the at least one heating paste can advantageously be printed onto the carrier, it being possible to use standard printing methods for this purpose.
- a reflective layer is applied between the heating surface and the carrier.
- the reflective layer ensures good heat radiation and at the same time protects the wearer from overheating.
- the reflective layer can be formed by metal plates embedded in an aqueous adhesive system.
- the surface heating element can be switched on and off by an external switch.
- the carrier can, for example, have a switching zone next to the heating surface on which the switch is applied.
- the switch is formed from two electrically conductive layers separated from one another by compressible spacers, the layers being water-based dispersions based on polyurethane with inserted conductive elements.
- the spacers can be compressed by pressure to such an extent that the two conductive layers come into mutual contact and the heating surface is thus supplied with electricity.
- the production of the layers from aqueous dispersions ensures an environmentally friendly design of the heating element, since no solvents are used.
- the surface heating element can be provided with an adhesive layer.
- the adhesive layer can preferably be printed on and consist of a thermoplastic adhesive. This reacts under the influence of heat, so that the surface heating element can be thermally connected to a carrier part.
- Fig. 1 shows a surface heating element 10 with a flexible carrier 11, which can for example be a plastic film or a siliconized paper.
- a heating surface 12 is applied to the carrier 11.
- This is formed from at least one heating paste, wherein the heating paste can be, for example, an acrylate or PU system with conductive additives.
- Particularly suitable additives are particles made of copper, aluminum, graphite, silver or soot particles.
- the heating paste thus has a low electrical resistance.
- a reflective layer 17 is provided under the heating surface 12, which can be formed, for example, by aluminum particles embedded in an aqueous adhesive system.
- contact surfaces 13, 14 are arranged on the reflective layer 17, which can be formed from a water-based, electrically conductive dispersion. Acrylic polymers with copper and / or silver particles as additives are particularly suitable for this.
- the contact surfaces 13, 14 thus have very good adhesion to the carrier 11 and have a good shielding effect. They are used to connect electrical cables 15, 16 in order to be able to connect the heating surface 12 to a power source (not shown).
- FIG. 2 a second embodiment of a surface heating element 10 'is shown.
- a two-part heating surface 12 ' is arranged here directly on a flexible support 11'.
- Each half 12a 'and 12b' of the heating surface 12 ' is laterally bordered by contact surfaces 13a', 13b 'which are used to connect cables 15a, 15b, 16a, 16b leading to a power source (not shown).
- a thermistor 18 is also provided, which is connected via printed conductor tracks 19 to a plug 20 and LEDs 21, 22, which indicate two different heating levels.
- the plug 20 and the LEDs 21, 22 are attached to an extension tongue 11a 'of the carrier 11'.
- a switch 23 which can be actuated by pressure or wiping is also arranged on the tongue 11a ', so that here the heating element 10' can be switched on and off in the immediate vicinity of the heating surface 12 '.
- Fig. 3 illustrates the layer structure of the heating element 10 'from Fig. 2 in the area of the switch 23.
- a layer 24 of a transparent polyurethane dispersion is applied to the carrier 11 '.
- a reflective layer 17 ′ which can be formed by aluminum particles embedded in an aqueous adhesive system.
- a further layer 25 made of a transparent polyurethane dispersion is provided above this before the actual switch 23, which consists of three layers 26, 27 and 28, follows.
- the first layer 26 is a first conductive layer made of an electrically conductive acrylic polymer dispersion, which can contain copper and silver particles as additives.
- the layers 26 and 28 could, however, also be made of the same material.
- a protective layer 29 to which, for example, an adhesive layer 30 made of thermoplastic plastic granulate or powder or made of an adhesive paste can be applied.
- an adhesive layer 30 made of thermoplastic plastic granulate or powder or made of an adhesive paste can be applied.
- the heating element 10 ′ can be laminated onto a further component, for example an interior trim part of a vehicle.
- All layers 24, 17 'and 25-30 can be applied by means of printing processes.
Landscapes
- Surface Heating Bodies (AREA)
- Thermistors And Varistors (AREA)
Abstract
Ein Flächenheizelement mit einem flexiblen Träger (11), auf den eine Heizfläche (12) aufgebracht ist, wobei die Heizfläche (12) aus mindestens einer Heizpaste auf Acrylat- oder PU-Basis mit leitfähigen Füllstoffen gebildet ist.A surface heating element with a flexible carrier (11) to which a heating surface (12) is applied, the heating surface (12) being formed from at least one heating paste based on acrylate or PU with conductive fillers.
Description
Die Erfindung betrifft ein Flächenheizelement mit einem flexiblen Träger.The invention relates to a surface heating element with a flexible carrier.
Solche Folienheizungen sind bereits bekannt. In der Regel weisen die bekannten Heizungen auf eine Folie aufgedruckte, mäanderförmige Leiterbahnen auf, die sich bei einem Stromfluss erwärmen. Diese flexiblen Heizfolien können beispielsweise zur Beheizung von Fahrzeuginnenräumen und/oder Fahrzeugsitzen eingesetzt werden. Durch den flexiblen Träger lassen sich die Heizungen leicht auch auf Formteile wie Innenverkleidungen von Fahrzeugen oder Sitzen aufbringen.Such film heaters are already known. As a rule, the known heaters have meander-shaped conductor tracks that are printed on a film and that heat up when a current flows. These flexible heating foils can be used, for example, to heat vehicle interiors and / or vehicle seats. Thanks to the flexible carrier, the heaters can also be easily attached to molded parts such as the interior trim of vehicles or seats.
Auch zur Beheizung von Räumen wurden Folienheizungen in Form von Flächenheizungen schon eingesetzt. Die mit den bisherigen Heizungen dabei erzielbaren Temperaturen waren jedoch nicht zufriedenstellend.Foil heating in the form of surface heating has also been used to heat rooms. The temperatures achievable with the previous heaters were not, however, satisfactory.
Der Erfindung liegt die Aufgabe zugrunde, ein Flächenheizelement vorzuschlagen, mit dem auch höhere Temperaturen erzielbar sind und das einfach in der Herstellung ist.The invention is based on the object of proposing a surface heating element with which higher temperatures can also be achieved and which is easy to manufacture.
Die Aufgabe wird gelöst durch ein Flächenheizelement mit einem flexiblen Träger, auf den eine Heizfläche aufgebracht ist, das dadurch gekennzeichnet ist, dass die Heizfläche aus mindestens einer Heizpaste auf Acrylat- oder PU-Basis mit leitfähigen Füllstoffen gebildet ist.The object is achieved by a surface heating element with a flexible carrier on which a heating surface is applied, which is characterized in that the heating surface is formed from at least one heating paste based on acrylate or PU with conductive fillers.
Im Gegensatz zu bekannten Heizelementen mit mäanderförmigen Heizleiterbahnen weist das erfindungsgemäße Heizelement eine Heizfläche auf und kann daher höhere und gleichmäßigere Temperaturen erzielen als bekannte Folienheizelemente. Die Heizfläche kann dabei auf >= 80°C aufheizbar sein, sodass mit dem Flächenheizelement sogar Räume eines Gebäudes beheizbar sind. Ein weiterer Vorteil einer Heizfläche im Vergleich zu mäanderförmigen Heizleitern besteht darin, dass mechanische Verletzungen der Heizfläche nicht zu einem Totalausfall des Heizelements führen wie bei einem Durchtrennen von Heizleitern.In contrast to known heating elements with meandering heating conductor tracks, the heating element according to the invention has a heating surface and can therefore achieve higher and more uniform temperatures than known foil heating elements. The heating surface can be heated to> = 80 ° C, so that even rooms in a building can be heated with the surface heating element. Another advantage of a heating surface compared to meander-shaped heating conductors is that mechanical damage to the heating surface does not lead to a total failure of the heating element, as occurs when heating conductors are severed.
Die Heizfläche kann in beliebigen Formen und Größen hergestellt werden und somit optimal auf den jeweiligen Anwendungsfall des Heizelements angepasst werden.The heating surface can be produced in any shape and size and thus optimally adapted to the particular application of the heating element.
Die leitfähigen Füllstoffe der Heizpasten können vorzugsweise Ruße, Metallplättchen, Graphite und/oder Silber-Nanokugeln sein.The conductive fillers of the heating pastes can preferably be carbon blacks, metal flakes, graphite and / or silver nanospheres.
Weitere Vorteile ergeben sich, wenn die Heizfläche von mehreren Schichten von Heizpasten gebildet ist. Der mehrschichtige Aufbau sorgt für eine hohe Wärmespeicherkapazität. Gleichzeitig sind die Schichten flexibel und mechanisch sehr stabil, sodass auch ein starkes Biegen des Trägers nicht zum Ablösen der Pastenschichten führt.Further advantages result if the heating surface is formed by several layers of heating pastes. The multi-layer structure ensures a high heat storage capacity. At the same time, the layers are flexible and mechanically very stable, so that even strong bending of the carrier does not lead to the paste layers becoming detached.
Neben der Heizfläche können auf den Träger auch elektronische Bauelemente einer Ansteuerelektronik für die Heizfläche, Leiterbahnen, LEDs, Sensoren und/oder Kontakte aufgebracht sein. Alternativ können diese Elemente der Ansteuerelektronik natürlich auch separat und entfernt von der Heizfläche angeordnet werden. Neben der Heizfläche sind in diesem Fall nur Kontakte auf dem Träger aufgebracht.In addition to the heating surface, electronic components of control electronics for the heating surface, conductor tracks, LEDs, sensors and / or contacts can also be applied to the carrier. Alternatively, these elements of the control electronics can of course also be arranged separately and away from the heating surface. In addition to the heating surface, only contacts are applied to the carrier in this case.
Die elektronischen Bauelemente können dabei auf den Träger aufgedruckt, aufgeklebt, aufgelötet oder mit dem Träger vernietet oder verpresst sein. Die Bestückung des Trägers mit diesen Elementen kann auch mit Hilfe von Bestückungsautomaten erfolgen.The electronic components can be printed, glued, soldered or riveted or pressed onto the carrier. These elements can also be placed on the carrier with the aid of automatic placement machines.
Der Träger kann vorzugsweise aus einem silikonierten Papier oder einer PE-Folie gefertigt sein. Diese Materialien weisen genügend Reißfestigkeit bei gleichzeitig hoher Flexibilität auf.The carrier can preferably be made of siliconized paper or a PE film. These materials have sufficient tear strength and high flexibility at the same time.
Die mindestens eine Heizpaste lässt sich vorteilhafterweise auf den Träger aufdrucken, wobei hierzu Standarddruckverfahren eingesetzt werden können.The at least one heating paste can advantageously be printed onto the carrier, it being possible to use standard printing methods for this purpose.
Weiter ist es vorteilhaft, wenn zwischen der Heizfläche und dem Träger eine Reflexionsschicht aufgebracht ist. Die Reflexionsschicht sorgt für eine gute Wärmeabstrahlung und schützt gleichzeitig den Träger vor Überhitzung. Die Reflexionsschicht kann dazu von in ein wässriges Klebesystem eingebetteten Metallplättchen gebildet sein.It is also advantageous if a reflective layer is applied between the heating surface and the carrier. The reflective layer ensures good heat radiation and at the same time protects the wearer from overheating. For this purpose, the reflective layer can be formed by metal plates embedded in an aqueous adhesive system.
Das Flächenheizelement kann durch einen externen Schalter ein- und ausgeschaltet werden. Es ist jedoch auch möglich, die Heizfläche mittels eines auf dem Träger aufgebrachten, durch Wischen oder Druck betätigbaren Schalters zu aktivieren. Der Träger kann hierzu beispielsweise eine neben der Heizfläche liegende Schaltzone aufweisen, auf den der Schalter aufgebracht ist.The surface heating element can be switched on and off by an external switch. However, it is also possible to activate the heating surface by means of a switch which is attached to the carrier and can be operated by wiping or pressure. For this purpose, the carrier can, for example, have a switching zone next to the heating surface on which the switch is applied.
Dabei ist es vorteilhaft, wenn der Schalter von zwei durch komprimierbare Abstandshalter voneinander getrennten elektrisch leitfähigen Schichten gebildet ist, wobei die Schichten Wasser basierte Dispersionen auf Polyurethanbasis mit eingefügten leitfähigen Elementen sind. Durch Druck lassen sich die Abstandshalter soweit komprimieren, dass die beiden leitfähigen Schichten in gegenseitigen Kontakt kommen und dadurch die Heizfläche mit Strom versorgt wird. Die Herstellung der Schichten aus wässrigen Dispersionen sorgt für eine umweltfreundliche Gestaltung des Heizelements, da auf Lösemittel verzichtet wird.It is advantageous if the switch is formed from two electrically conductive layers separated from one another by compressible spacers, the layers being water-based dispersions based on polyurethane with inserted conductive elements. The spacers can be compressed by pressure to such an extent that the two conductive layers come into mutual contact and the heating surface is thus supplied with electricity. The production of the layers from aqueous dispersions ensures an environmentally friendly design of the heating element, since no solvents are used.
Zur Erleichterung des Aufbringens des Flächenheizelements auf einem Bauteil, beispielsweise eines Innenraumverkleidungsteils eines Fahrzeugs, kann es mit einer Klebeschicht versehen sein. Die Klebeschicht kann vorzugsweise aufgedruckt werden und aus einem thermoplastischen Klebstoff bestehen. Dieser reagiert unter Hitzeeinwirkung, sodass das Flächenheizelement thermisch mit einem Trägerteil verbunden werden kann.To facilitate the application of the surface heating element to a component, for example an interior trim part of a vehicle, it can be provided with an adhesive layer. The adhesive layer can preferably be printed on and consist of a thermoplastic adhesive. This reacts under the influence of heat, so that the surface heating element can be thermally connected to a carrier part.
Nachfolgend werden bevorzugte Ausführungsbeispiele von erfindungsgemäßen Flächenheizelementen mit Bezug auf die Zeichnung näher beschrieben.Preferred exemplary embodiments of surface heating elements according to the invention are described in more detail below with reference to the drawing.
Es zeigen:
- Fig. 1
- eine Draufsicht auf ein erstes Flächenheizelement;
- Fig. 2
- eine Draufsicht auf ein zweites Flächenheizelement mit integrierten elektronischen Bauelementen;
- Fig. 3
- einen schematischen Schichtaufbau des Flächenheizelements aus
Fig. 2 im Bereich eines Schalters.
- Fig. 1
- a plan view of a first surface heating element;
- Fig. 2
- a plan view of a second surface heating element with integrated electronic components;
- Fig. 3
- a schematic layer structure of the surface heating element
Fig. 2 in the area of a switch.
Auf dem Träger 11 ist eine Heizfläche 12 aufgebracht. Diese ist aus mindestens einer Heizpaste gebildet, wobei die Heizpaste beispielsweise ein Acrylat- oder PU-System mit leitfähigen Additiven sein kann. Als Additive kommen insbesondere Partikel aus Kupfer, Aluminium, Graphit, Silber oder Rußpartikel in Frage. Die Heizpaste weist damit einen geringen elektrischen Widerstand auf.A
Unter der Heizfläche 12 ist eine Reflexionsschicht 17 vorgesehen, die beispielsweise von in ein wässriges Klebesystem eingebetteten Aluminium-Partikeln gebildet sein kann.A
Seitlich der Heizfläche 12 sind Kontaktierungsflächen 13, 14 auf der Reflexionsschicht 17 angeordnet, die aus einer wasserbasierten, elektrisch leitfähigen Dispersion gebildet sein können. Hierfür kommen insbesondere Acryl-Polymere mit Kupfer- und/oder Silberpartikeln als Additive in Frage. Damit erhalten die Kontaktierungsflächen 13, 14 eine sehr gute Haftung auf dem Träger 11 und weisen eine gute Abschirmwirkung auf. Sie dienen dem Anschluss von elektrischen Kabeln 15, 16, um die Heizfläche 12 mit einer Stromquelle (nicht gezeigt) verbinden zu können.To the side of the
In
Oberhalb der Schicht 28 und damit des Schalters 23 ist eine Schutzschicht 29 angeordnet, auf die beispielsweise eine Klebeschicht 30 aus thermoplastischem Kunststoffgranulat oder -pulver oder aus einer Klebepaste aufgebracht sein kann. Mit Hilfe der Klebeschicht 30 lässt sich das Heizelement 10' auf ein weiteres Bauteil, beispielsweise ein Innenverkleidungsteil eines Fahrzeugs aufkaschieren.Above the
Sämtliche Schichten 24, 17' und 25 - 30 können mittels Druckverfahren aufgebracht werden.All layers 24, 17 'and 25-30 can be applied by means of printing processes.
Claims (13)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102019112528.6A DE102019112528A1 (en) | 2019-05-14 | 2019-05-14 | Surface heating element |
Publications (2)
Publication Number | Publication Date |
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EP3740030A2 true EP3740030A2 (en) | 2020-11-18 |
EP3740030A3 EP3740030A3 (en) | 2020-12-02 |
Family
ID=69185510
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20152880.9A Pending EP3740030A3 (en) | 2019-05-14 | 2020-01-21 | Surface heating element |
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Country | Link |
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EP (1) | EP3740030A3 (en) |
DE (1) | DE102019112528A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4145956A1 (en) * | 2021-09-07 | 2023-03-08 | Benecke-Kaliko AG | Flexible sheet material |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5902518A (en) * | 1997-07-29 | 1999-05-11 | Watlow Missouri, Inc. | Self-regulating polymer composite heater |
EP2160925A4 (en) * | 2007-04-30 | 2012-03-28 | Molded Heating Ab | Heating device |
EP2062771A1 (en) * | 2007-11-21 | 2009-05-27 | Delphi Technologies, Inc. | Seat heating and seat belt warning system |
DE102009034307A1 (en) * | 2009-07-21 | 2011-01-27 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | High temperature heating and process for its production |
EP3420041A4 (en) * | 2016-02-24 | 2019-11-13 | LMS Consulting Group | An electrically conductive ptc ink with double switching temperatures and applications thereof in flexible double-switching heaters |
JP7010584B2 (en) * | 2016-03-14 | 2022-02-10 | ザ・ボーイング・カンパニー | System with composite panel and system control module |
DE202018100685U1 (en) * | 2018-02-08 | 2018-02-26 | Suncoat Gmbh | Electrically operated surface heating element |
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2019
- 2019-05-14 DE DE102019112528.6A patent/DE102019112528A1/en active Pending
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2020
- 2020-01-21 EP EP20152880.9A patent/EP3740030A3/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4145956A1 (en) * | 2021-09-07 | 2023-03-08 | Benecke-Kaliko AG | Flexible sheet material |
Also Published As
Publication number | Publication date |
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DE102019112528A1 (en) | 2020-11-19 |
EP3740030A3 (en) | 2020-12-02 |
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