EP4033857A1 - Heating device - Google Patents
Heating device Download PDFInfo
- Publication number
- EP4033857A1 EP4033857A1 EP21207053.6A EP21207053A EP4033857A1 EP 4033857 A1 EP4033857 A1 EP 4033857A1 EP 21207053 A EP21207053 A EP 21207053A EP 4033857 A1 EP4033857 A1 EP 4033857A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- heating device
- layer
- carrier
- heating
- contacting
- 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 72
- 239000010410 layer Substances 0.000 claims abstract description 66
- 239000003973 paint Substances 0.000 claims abstract description 25
- 239000002344 surface layer Substances 0.000 claims abstract description 21
- 239000006260 foam Substances 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 239000010985 leather Substances 0.000 claims description 4
- 239000007769 metal material Substances 0.000 claims description 4
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 239000007770 graphite material Substances 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims 2
- 229910052799 carbon Inorganic materials 0.000 claims 1
- 239000012777 electrically insulating material Substances 0.000 claims 1
- 239000002184 metal Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- 238000004804 winding Methods 0.000 description 4
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012811 non-conductive material Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 229910001256 stainless steel alloy Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
Images
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
-
- 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
Definitions
- the invention relates to a heating device according to the preamble of claim 1.
- Objects, in particular interior surfaces and facilities in interior spaces of vehicles are heated with such heating devices.
- Such vehicles can in particular be formed by motor vehicles, in which case the objects to be heated there can be formed in particular by steering wheels.
- the heating device then forms a steering wheel heater.
- Such steering wheels have, in a known manner, dimensionally stable base bodies which can be designed in particular in the form of steel tubes.
- a hard, stable foam layer is typically applied to this base body as a support.
- Heating metal windings which form the heating element of the steering wheel heater, are applied or introduced to this carrier.
- the heating metal windings consist, for example, of copper or stainless steel alloys.
- a second foam layer is applied to this heating element, which forms the base for a surface layer which can be made of leather or plastic. The purpose of the second foam layer is to ensure that the hard and unyielding heating metal orientations are not felt through the surface layer.
- a disadvantage of such a steering wheel heater is its relatively complex structure.
- the invention is based on the object of providing a heating device of the type mentioned at the outset, which has a high level of functionality with a simple structural design.
- the invention relates to a heating device for heating an object in a vehicle interior, having an electrically contacted heating element which is arranged between a carrier and a surface layer, heat generated in the heating element being emitted via the surface layer.
- the heating element consists of a layer of paint.
- An essential advantage of the invention is that the color layer forming the heating element can be applied to the support simply by applying color, in particular in the form of a coating on the support.
- the heating element designed in this way can adapt flexibly and easily to different geometries, as a result of which adaptation to different applications is possible.
- the color layer forms a uniform, preferably homogeneous layer that ensures the same heating properties over its entire surface.
- heating element compared to heating elements in the form of heating metal windings is that this forms a homogeneous surface layer.
- the heating metal windings consist of rigid bodies such as wires or braids, which can be felt or seen through the surface layer, so that in this case there is an additional layer of damping between the heating elements and the surface layers must be provided, which makes the construction of the heating device complex. This additional expense does not apply to the heating device according to the invention.
- the heating element according to the invention in the form of the colored layer also has significant advantages over lacquer layers. Compared to paints, paints generally have lower amounts of binder and higher amounts of pigments. Due to the higher binder content, paints form hard layers that have extremely limited elastic properties. In the event of mechanical loads, which can be caused in vehicle interiors in particular by temperature differences occurring or as a result of vibrations, there is a risk that the contact of the heating element with electrical contacts will be impaired, thereby impairing the functionality of the heating device.
- the heating element is formed by a layer of paint which is elastically deformable and flexible in such a way that contact with elastic contacts is permanently maintained even under mechanical loads.
- the heating device according to the invention can be used in vehicles of different types.
- the vehicles can be ships, airplanes or rail vehicles.
- the vehicles are particularly advantageously formed by motor vehicles.
- the heating device can serve to heat interior fittings of a vehicle.
- the interior is formed by the inside of a door, an armrest, a headliner, a center console or a dashboard.
- the heating device according to the invention is used to heat the steering means of a vehicle.
- the steering means can be formed by joysticks, steering rods and the like.
- the steering means is particularly advantageously a steering wheel.
- the color layer forms an electrically conductive layer over its entire surface.
- the colored layer advantageously contains electrically conductive particles which consist in particular of carbon fibers and particles, graphite and/or metallic materials.
- the carrier and the surface layer, which border on the color layer consist of electrically insulating, ie non-conductive, materials.
- the carrier which can in particular be designed as a carrier layer, advantageously consists of plastic, in particular of a foam.
- the surface layer can also consist of a plastic.
- the heating device is used to heat a steering means such as a steering wheel, the surface layer can also consist of leather.
- the electrical contact which is assigned to the heating element formed by the color layer, is generally used to supply electricity to the heating element. As a result, the heating element is heated and also gives off heat to the surface layer to the outside.
- contacting means are provided for electrical contacting of the colored layer.
- the contacting means are designed in the form of metallic contacting spirals.
- the contacting means are first introduced into the recesses of the carrier. Then the color layer is applied to the carrier.
- liquid paint is applied in liquid form to the carrier by spraying or using tools such as brushes. Since the paint is liquid, it seeps into the depressions and preferably encloses the contacting means on all sides. After the paint has dried, the paint applied to the depressions lies tightly and extensively on the contacting means and thus ensures a good and permanent conductive connection of the contacting means with the paint layer.
- the color introduced into the depressions forms local thickenings of the color layer, which ensure extremely stable contacting of the color layer with the contacting means.
- the contacts are stable against mechanical loads.
- figure 1 shows schematically a steering wheel 1 which is integrated in the interior of a motor vehicle, not shown.
- the steering wheel is in a known way over Spokes attached to a steering column.
- a heater 4 is integrated, the structure based on the figures 2 and 3 is explained.
- figure 2 1 shows a cross-sectional representation of the steering wheel 1.
- a carrier in the form of a carrier layer 6 is applied to the preferably tubular base body 5.
- the carrier layer 6 generally consists of an electrically non-conductive material. In the present case, the carrier layer 6 consists of a foam.
- the carrier layer 6 extends along the entire circumference of the steering wheel 1.
- the steering wheel heater that is to say the heating device 4
- the color layer has a homogeneous layer thickness and extends over the entire surface of the carrier layer 6.
- the color layer is electrically conductive.
- the paint forming the paint layer has electrically conductive particles, which consist in particular of carbon fibers and particles, graphite and/or metallic materials.
- the colored layer is applied to the carrier layer 6 as a coating.
- FIG. 3 An example of the electrical contacting of the color layer is shown figure 3 .
- Corresponding contacts are provided in both areas B of the steering wheel 1, so that electrical connections of different polarity are realized.
- the contact spiral 10 consists of a metallic material.
- Liquid paint is applied to the top of the carrier layer 6 to form the paint layer.
- the paint seeps into the depression 9, fills it completely and encloses the contacting spiral 10 on all sides. After the paint dries and hardens, it forms a paint layer on the carrier layer 6 and forms local widenings in the areas of the depressions 9, which enclose the respective contacting spiral 10, whereby an electrically conductive contact between the contacting spiral 10 and the paint layer is established.
- figure 4 shows a schematic of interior equipment 11 of a vehicle with an integrated heating device 4.
- the interior trim 11 may be formed from the inside of a door, an armrest, a center console, or a dashboard of a vehicle.
- the interior fittings 11 are formed by a headliner.
- figure 4 shows a section of the flat roof 12 of a vehicle, in particular a motor vehicle.
- the carrier layer 6 which consists of plastic in the present case.
- the conductive paint layer is applied as a heating element 7 to the carrier layer 6 as a coating.
- a surface layer 8 made of plastic is applied to the color layer.
- depressions 9 are worked into the carrier layer, in which contacting spirals 10 are mounted as contacting means.
- the color layer extends back into the depressions 9, as a result of which an electrical contact between the color layer and the contacting spirals 10 is obtained.
Landscapes
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Control And Other Processes For Unpacking Of Materials (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
- Steering Controls (AREA)
Abstract
Die Erfindung betrifft eine Heizeinrichtung (4) zur Beheizung eines Gegenstands in einem Fahrzeuginnenraum mit einem elektrisch kontaktierten Heizelement (7), das zwischen einem Träger und einer Oberflächenschicht (8) angeordnet ist, wobei im Heizelement (7) erzeugte Wärme über die Oberflächenschicht (8) abgegeben wird. Das Heizelement (7) besteht aus einer Farbschicht. The invention relates to a heating device (4) for heating an object in a vehicle interior, having an electrically contacted heating element (7) which is arranged between a carrier and a surface layer (8), the heat generated in the heating element (7) being transmitted via the surface layer (8 ) is delivered. The heating element (7) consists of a layer of paint.
Description
Die Erfindung betrifft eine Heizeinrichtung gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a heating device according to the preamble of
Mit derartigen Heizeinrichtungen werden Gegenstände, insbesondere Innenflächen und Einrichtungen in Innenräumen von Fahrzeugen beheizt. Derartige Fahrzeuge können insbesondere von Kraftfahrzeugen gebildet sein, wobei die dort zu beheizenden Gegenstände insbesondere von Lenkrädern gebildet sein können. Die Heizeinrichtung bildet dann eine Lenkradheizung.Objects, in particular interior surfaces and facilities in interior spaces of vehicles, are heated with such heating devices. Such vehicles can in particular be formed by motor vehicles, in which case the objects to be heated there can be formed in particular by steering wheels. The heating device then forms a steering wheel heater.
Derartige Lenkräder weisen in bekannter Weise formstabile Grundkörper auf, die insbesondere in Form von Stahlrohren ausgebildet sein können. Auf diesem Grundkörper ist typischerweise als Träger eine harte, stabile Schaumstoffschicht aufgebracht. Auf diesem Träger sind Heizmetallwicklungen aufgebracht oder eingebracht, die das Heizelement der Lenkradheizung bilden. Die Heizmetallwicklungen bestehen beispielsweise aus Kupfer- oder Edelstahllegierungen. Auf dieses Heizelement ist eine zweite Schaumstoffschicht aufgebracht, die die Unterlage für eine Oberflächenschicht bildet, die aus Leder oder Kunststoff bestehen kann. Die zweite Schaumstoffschicht dient insbesondere dazu, dass die harten und unnachgiebigen Heizmetallausrichtungen nicht durch die Oberflächenschicht hindurch spürbar sind.Such steering wheels have, in a known manner, dimensionally stable base bodies which can be designed in particular in the form of steel tubes. A hard, stable foam layer is typically applied to this base body as a support. Heating metal windings, which form the heating element of the steering wheel heater, are applied or introduced to this carrier. The heating metal windings consist, for example, of copper or stainless steel alloys. A second foam layer is applied to this heating element, which forms the base for a surface layer which can be made of leather or plastic. The purpose of the second foam layer is to ensure that the hard and unyielding heating metal orientations are not felt through the surface layer.
Nachteilig bei einer derartigen Lenkradheizung ist deren relativ komplexer Aufbau.A disadvantage of such a steering wheel heater is its relatively complex structure.
Aus der
Der Erfindung liegt die Aufgabe zugrunde eine Heizeinrichtung der eingangsgenannten Art bereitzustellen, welche bei einfachem konstruktivem Aufbau eine hohe Funktionalität aufweist.The invention is based on the object of providing a heating device of the type mentioned at the outset, which has a high level of functionality with a simple structural design.
Zur Lösung dieser Aufgabe sind die Merkmale des Anspruchs 1 vorgesehen. Vorteilhafte Ausführungsformen und zweckmäßige Weiterbildungen der Erfindung sind in den abhängigen Ansprüchen beschrieben.To solve this problem, the features of
Die Erfindung betrifft eine Heizeinrichtung zur Beheizung eines Gegenstands in einem Fahrzeuginnenraum mit einem elektrisch kontaktierten Heizelement das zwischen einem Träger und einer Oberflächenschicht angeordnet ist, wobei im Heizelement erzeugte Wärme über die Oberflächenschicht abgegeben wird. Das Heizelement besteht aus einer Farbschicht.The invention relates to a heating device for heating an object in a vehicle interior, having an electrically contacted heating element which is arranged between a carrier and a surface layer, heat generated in the heating element being emitted via the surface layer. The heating element consists of a layer of paint.
Ein wesentlicher Vorteil der Erfindung besteht darin, dass die das Heizelement bildende Farbschicht einfach durch Aufbringen von Farbe am Träger angebracht werden kann, insbesondere in Form einer Beschichtung auf dem Träger. Das so ausgebildete Heizelement kann sich flexibel und einfach an unterschiedliche Geometrien anpassen, wodurch eine Anpassung an unterschiedliche Applikationen möglich ist.An essential advantage of the invention is that the color layer forming the heating element can be applied to the support simply by applying color, in particular in the form of a coating on the support. The heating element designed in this way can adapt flexibly and easily to different geometries, as a result of which adaptation to different applications is possible.
Die Farbschicht bildet dabei eine gleichmäßige, vorzugsweise homogene Schicht, die über ihre gesamte Fläche gleiche Heizeigenschaften gewährleistet.The color layer forms a uniform, preferably homogeneous layer that ensures the same heating properties over its entire surface.
Ein wesentlicher Vorteil der Ausbildung des Heizelements im Vergleich zu Heizelementen in Form von Heizmetallwicklungen besteht darin, dass diese eine homogene Flächenschicht ausbildet. Demgegenüber bestehen die Heizmetallwicklungen aus starren Körpern wie Drähten oder Geflechten, die durch die Oberflächenschicht hindurch spürbar oder sichtbar sein können, sodass in diesem Fall eine zusätzliche Dämpfungsschicht zwischen Heizelementen und Oberflächenschichten vorgesehen werden muss, was die Konstruktion der Heizeinrichtung aufwändig gestaltet. Dieser zusätzliche Aufwand entfällt bei der erfindungsgemäßen Heizeinrichtung.An essential advantage of the design of the heating element compared to heating elements in the form of heating metal windings is that this forms a homogeneous surface layer. In contrast, the heating metal windings consist of rigid bodies such as wires or braids, which can be felt or seen through the surface layer, so that in this case there is an additional layer of damping between the heating elements and the surface layers must be provided, which makes the construction of the heating device complex. This additional expense does not apply to the heating device according to the invention.
Das erfindungsgemäße Heizelement in Form der Farbschicht weist auch gegenüber Lackschichten wesentliche Vorteile auf. Farben weisen gegenüber Lacken generell geringere Bindemittelanteile und höhere Pigmentanteile auf. Durch die höheren Bindemittelanteile bilden Lacke harte Schichten auf, die äußerst begrenzte elastische Eigenschaften aufweisen. Bei mechanischen Belastungen, die in Fahrzeuginnenräumen insbesondere durch auftretende Temperaturunterschiede oder in Folge von Vibrationen bedingt sein können, besteht damit die Gefahr, dass dadurch der Kontakt des Heizelements zu elektrischen Kontaktierungen beeinträchtigt wird, wodurch die Funktionsfähigkeit der Heizeinrichtung beeinträchtigt wird.The heating element according to the invention in the form of the colored layer also has significant advantages over lacquer layers. Compared to paints, paints generally have lower amounts of binder and higher amounts of pigments. Due to the higher binder content, paints form hard layers that have extremely limited elastic properties. In the event of mechanical loads, which can be caused in vehicle interiors in particular by temperature differences occurring or as a result of vibrations, there is a risk that the contact of the heating element with electrical contacts will be impaired, thereby impairing the functionality of the heating device.
Bei der erfindungsgemäßen Heizeinrichtung wird dieses Problem auf einfache Weise dadurch gelöst, dass das Heizelement von einer Farbschicht gebildet ist, welche derart elastisch verformbar und nachgiebig ist, so dass auch bei mechanischen Belastungen der Kontakt zu elastischen Kontaktierungen dauerhaft erhalten bleibt.In the case of the heating device according to the invention, this problem is solved in a simple manner in that the heating element is formed by a layer of paint which is elastically deformable and flexible in such a way that contact with elastic contacts is permanently maintained even under mechanical loads.
Die erfindungsgemäße Heizeinrichtung kann in Fahrzeugen unterschiedlicher Art eingesetzt werden. Die Fahrzeuge können Schiffe, Flugzeuge oder auch Schienenfahrzeuge sein. Besonders vorteilhaft sind die Fahrzeuge von Kraftfahrzeugen gebildet.The heating device according to the invention can be used in vehicles of different types. The vehicles can be ships, airplanes or rail vehicles. The vehicles are particularly advantageously formed by motor vehicles.
Gemäß einer vorteilhaften Ausgestaltung kann dabei die Heizeinrichtung zur Beheizung von Innenausstattungen eines Fahrzeugs dienen.According to an advantageous embodiment, the heating device can serve to heat interior fittings of a vehicle.
Beispielsweise ist die Innenausstattung von der Innenseite einer Tür, einer Armauflage, einem Fahrzeughimmel, einer Mittelkonsole oder einem Armaturenbrett gebildet.For example, the interior is formed by the inside of a door, an armrest, a headliner, a center console or a dashboard.
Gemäß einer weiteren vorteilhaften Ausgestaltung wird die erfindungsgemäße Heizeinrichtung zur Beheizung von Lenkmitteln eines Fahrzeugs eingesetzt. Je nach Ausbildung des Fahrzeugs können die Lenkmittel von Steuerknüppeln, Lenkstangen und dergleichen gebildet sein. Besonders vorteilhaft ist das Lenkmittel ein Lenkrad.According to a further advantageous embodiment, the heating device according to the invention is used to heat the steering means of a vehicle. Depending on the design of the vehicle, the steering means can be formed by joysticks, steering rods and the like. The steering means is particularly advantageously a steering wheel.
Die Farbschicht bildet eine über ihre gesamte Fläche elektrisch leitfähige Schicht. Vorteilhaft enthält die Farbschicht hierzu elektrisch leitfähige Partikel die insbesondere aus Carbon Fasern und Partikeln, Graphit und/oder metallischen Werkstoffen bestehen.The color layer forms an electrically conductive layer over its entire surface. For this purpose, the colored layer advantageously contains electrically conductive particles which consist in particular of carbon fibers and particles, graphite and/or metallic materials.
Demgegenüber bestehen der Träger und die Oberflächenschicht, die an die Farbschicht angrenzen, aus elektrisch isolierenden, das heißt nicht leitfähigen Werkstoffen. Der Träger, der insbesondere als Trägerschicht ausgebildet sein kann, besteht vorteilhaft aus Kunststoff, insbesondere aus einem Schaumstoff. Die Oberflächenschicht kann ebenfalls aus einem Kunststoff bestehen. Insbesondere dann, wenn die Heizeinrichtung zur Beheizung eines Lenkmittels wie eines Lenkrads dient, kann die Oberflächenschicht auch aus Leder bestehen.In contrast, the carrier and the surface layer, which border on the color layer, consist of electrically insulating, ie non-conductive, materials. The carrier, which can in particular be designed as a carrier layer, advantageously consists of plastic, in particular of a foam. The surface layer can also consist of a plastic. In particular when the heating device is used to heat a steering means such as a steering wheel, the surface layer can also consist of leather.
Die elektrische Kontaktierung, die dem von der Farbschicht gebildeten Heizelement zugeordnet ist, dient generell zur Stromzufuhr zum Heizelement. Dadurch wird das Heizelement erwärmt und gibt Wärme auch an die Oberflächenschicht nach außen ab.The electrical contact, which is assigned to the heating element formed by the color layer, is generally used to supply electricity to the heating element. As a result, the heating element is heated and also gives off heat to the surface layer to the outside.
Gemäß einer vorteilhaften Ausgestaltung sind zur elektrischen Kontaktierung der Farbschicht Kontaktierungsmittel vorgesehen.According to an advantageous embodiment, contacting means are provided for electrical contacting of the colored layer.
Insbesondere sind die Kontaktierungsmittel in Vertiefungen des Trägers gelagert. Die Farbschicht ist in eine dieser Vertiefungen eingebracht.In particular, the contacting means are mounted in depressions in the carrier. The color layer is introduced into one of these depressions.
Gemäß einer besonders vorteilhaften Ausführungsform sind die Kontaktierungsmittel in Form von metallischen Kontaktierungsspiralen ausgebildet.According to a particularly advantageous embodiment, the contacting means are designed in the form of metallic contacting spirals.
Um auf diese Weise die Kontaktierungsmittel mit der Farbschicht elektrisch leitend zu verbinden, werden zunächst die Kontaktierungsmittel in die Vertiefungen des Trägers eingeführt. Dann wird auf dem Träger die Farbschicht aufgebracht. Hierzu wird flüssige Farbe durch Besprühen oder mit Hilfsmitteln wie Pinseln in flüssiger Form auf den Träger aufgetragen. Da die Farbe flüssig ist, sickert diese in die Vertiefungen ein und umschließt die Kontaktierungsmittel vorzugsweise allseitig. Nach Trocknen der Farbe liegt dann die in die Vertiefungen eingebrachte Farbe dicht und großflächig an den Kontaktierungsmitteln an und sorgt damit für eine gute und dauerhafte leitfähige Verbindung der Kontaktierungsmittel mit der Farbschicht.In order to connect the contacting means to the colored layer in an electrically conductive manner in this way, the contacting means are first introduced into the recesses of the carrier. Then the color layer is applied to the carrier. For this purpose, liquid paint is applied in liquid form to the carrier by spraying or using tools such as brushes. Since the paint is liquid, it seeps into the depressions and preferably encloses the contacting means on all sides. After the paint has dried, the paint applied to the depressions lies tightly and extensively on the contacting means and thus ensures a good and permanent conductive connection of the contacting means with the paint layer.
Die in die Vertiefungen eingebrachte Farbe bildet lokale Verdickungen der Farbschicht, die für eine äußerst stabile Kontaktierung der Farbschicht mit den Kontaktierungsmitteln sorgen. Insbesondere sind aufgrund der nachgiebigen elastischen Eigenschaften der Farbschicht die Kontaktierungen stabil gegen mechanische Belastungen.The color introduced into the depressions forms local thickenings of the color layer, which ensure extremely stable contacting of the color layer with the contacting means. In particular, due to the resilient elastic properties of the paint layer, the contacts are stable against mechanical loads.
Die Erfindung wird im Folgenden anhand der Zeichnungen erläutert. Es zeigen:
- Figur 1:
- Ausführungsbeispiel eines Lenkrads mit integrierter Heizeinrichtung.
- Figur 2:
- Querschnittdarstellung des Lenkrads im Bereich A von
.Figur 1 - Figur 3:
- Längsschnittdarstellung des Lenkrads im Bereich B von
.Figur 1 - Figur 4:
- Ausführungsbeispiel einer Innenausstattung eines Fahrzeugs mit integrierter Heizeinrichtung.
- Figure 1:
- Exemplary embodiment of a steering wheel with an integrated heating device.
- Figure 2:
- Cross-sectional view of the steering wheel in area A of
figure 1 . - Figure 3:
- Longitudinal section view of the steering wheel in area B of
figure 1 . - Figure 4:
- Embodiment of an interior of a vehicle with an integrated heating device.
Die Lenkradheizung, das heißt die Heizeinrichtung 4 weist als Heizelement 7 eine Farbschicht auf, die auf die Oberfläche der Trägerschicht 6 als Beschichtung aufgebracht ist. Die Farbschicht weist eine homogene Schichtdicke auf und erstreckt sich über die gesamte Oberfläche der Trägerschicht 6.The steering wheel heater, that is to say the
Die Farbschicht ist elektrisch leitfähig. Hierzu weist die die Farbschicht bildende Farbe elektrisch leitfähige Partikel auf, die insbesondere aus Carbon Fasern und Partikeln, Graphit und/oder metallischen Werkstoffen bestehen. Die Farbschicht ist als Beschichtung auf die Trägerschicht 6 aufgebracht.The color layer is electrically conductive. For this purpose, the paint forming the paint layer has electrically conductive particles, which consist in particular of carbon fibers and particles, graphite and/or metallic materials. The colored layer is applied to the
Auf die getrocknete, ausgehärtete Farbschicht wird eine Oberflächenschicht 8 aufgebracht, die im vorliegenden Fall aus Leder besteht. Generell kann die Oberflächenschicht 8 auch aus Kunststoff bestehen.A
Zur elektrischen Kontaktierung des Heizelements 7 verlaufen in den Speichen 2 des Lenkrads 1 nicht dargestellte elektrische Zuleitungen, die mit Kontaktierungsmitteln leitend verbunden sind. Die Kontaktierungsmittel sind wiederum mit der Farbschicht leitend verbunden. Durch eine Bestromung der Farbschicht wird diese erwärmt. Die Farbschicht gibt dann die generierte Wärme über die Oberflächenschicht 8 nach außen ab, wodurch die Heizwirkung der Heizeinrichtung 4 erzielt wird.For electrical contacting of the
Ein Beispiel für die elektrische Kontaktierung der Farbschicht zeigt
Wie
In dieser Vertiefung 9 verläuft eine Kontaktierungsspirale 10, die das Kontaktierungsmittel bildet. Die Kontaktierungsspirale 10 besteht aus einem metallischen Werkstoff.A contacting
Auf die Oberseite der Trägerschicht 6 wird zur Ausbildung der Farbschicht flüssige Farbe aufgetragen. Dabei sickert die Farbe in die Vertiefung 9, füllt diese vollständig aus und umschließt die Kontaktierungsspirale 10 allseitig. Nach Trocknen und Aushärten der Farbe bildet diese eine Farbschicht auf der Trägerschicht 6 und bildet in den Bereichen der Vertiefungen 9 lokale Verbreiterungen aus, die die jeweilige Kontaktierungsspirale 10 umschließen, wodurch ein elektrisch leitfähiger Kontakt zwischen der Kontaktierungsspirale 10 und der Farbschicht dargestellt wird.Liquid paint is applied to the top of the
Die Innenausstattung 11 kann von der Innenseite einer Tür, einer Armauflage, einer Mittelkonsole oder einem Armaturenbrett eines Fahrzeugs gebildet sein.The
Im vorliegenden Fall ist die Innenausstattung 11 von einem Fahrzeughimmel ausgebildet.
Analog zur Ausführungsform gemäß
- (1)(1)
- Lenkradsteering wheel
- (2)(2)
- Speichespoke
- (3)(3)
- Lenksäulesteering column
- (4)(4)
- Heizeinrichtungheating device
- (5)(5)
- Grundkörperbody
- (6)(6)
- Trägerschichtbacking layer
- (7)(7)
- Heizelementheating element
- (8)(8th)
- Oberflächenschichtsurface layer
- (9)(9)
- Vertiefungdeepening
- (10)(10)
- Kontaktierungsspiralecontact spiral
- (11)(11)
- Innenausstattunginterior design
- (12)(12)
- Dachroof
Claims (15)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102021101393.3A DE102021101393A1 (en) | 2021-01-22 | 2021-01-22 | heating device |
Publications (1)
Publication Number | Publication Date |
---|---|
EP4033857A1 true EP4033857A1 (en) | 2022-07-27 |
Family
ID=82101439
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP21207053.6A Pending EP4033857A1 (en) | 2021-01-22 | 2021-11-09 | Heating device |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP4033857A1 (en) |
DE (1) | DE102021101393A1 (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070210050A1 (en) * | 2006-02-27 | 2007-09-13 | Chang Soo Choi | Steering wheel for vehicle |
DE102013004327B4 (en) | 2013-03-14 | 2015-06-25 | W.E.T. Automotive Systems Ag | Heating device for a steering device |
US20150382403A1 (en) * | 2013-02-05 | 2015-12-31 | Swansea University | Heating element |
GB2551250A (en) * | 2016-04-15 | 2017-12-13 | Fgv Cambridge Nanosystems Ltd | Heater elements, heat exchangers and heater element arrays |
-
2021
- 2021-01-22 DE DE102021101393.3A patent/DE102021101393A1/en active Pending
- 2021-11-09 EP EP21207053.6A patent/EP4033857A1/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070210050A1 (en) * | 2006-02-27 | 2007-09-13 | Chang Soo Choi | Steering wheel for vehicle |
US20150382403A1 (en) * | 2013-02-05 | 2015-12-31 | Swansea University | Heating element |
DE102013004327B4 (en) | 2013-03-14 | 2015-06-25 | W.E.T. Automotive Systems Ag | Heating device for a steering device |
GB2551250A (en) * | 2016-04-15 | 2017-12-13 | Fgv Cambridge Nanosystems Ltd | Heater elements, heat exchangers and heater element arrays |
Also Published As
Publication number | Publication date |
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DE102021101393A1 (en) | 2022-07-28 |
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