DE102004034836A1 - Device for heating a flexible surface, in particular, of a vehicle seat is at least partly made of a protective material with a high tearing strength and a high thermal conductivity - Google Patents
Device for heating a flexible surface, in particular, of a vehicle seat is at least partly made of a protective material with a high tearing strength and a high thermal conductivity Download PDFInfo
- Publication number
- DE102004034836A1 DE102004034836A1 DE200410034836 DE102004034836A DE102004034836A1 DE 102004034836 A1 DE102004034836 A1 DE 102004034836A1 DE 200410034836 DE200410034836 DE 200410034836 DE 102004034836 A DE102004034836 A DE 102004034836A DE 102004034836 A1 DE102004034836 A1 DE 102004034836A1
- Authority
- DE
- Germany
- Prior art keywords
- electrically conductive
- resistance layer
- thermal conductivity
- components
- 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.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/56—Heating or ventilating devices
- B60N2/5678—Heating or ventilating devices characterised by electrical systems
- B60N2/5685—Resistance
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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—Heater elements characterised by the composition or nature of the materials or by the arrangement of the conductor
- H05B3/12—Heater 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—Heater 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
- H05B3/146—Conductive polymers, e.g. polyethylene, thermoplastics
-
- 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
- H05B2203/011—Heaters using laterally extending conductive material as connecting means
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
- H05B2203/013—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
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Chair Legs, Seat Parts, And Backrests (AREA)
- Surface Heating Bodies (AREA)
- Seats For Vehicles (AREA)
Abstract
Description
Die vorliegende Erfindung betrifft eine Vorrichtung zum Heizen einer nachgiebigen Oberfläche, insbesondere der eines Fahrzeugsitzes, mit einer flexiblen, elektrisch leitfähigen Widerstandsschicht.The The present invention relates to a device for heating a compliant surface, in particular that of a vehicle seat, with a flexible, electrically conductive resistive layer.
Für zahlreiche Anwendungen werden elektrische betreibbare Flächenheizelemente benötigt, beispielsweise als Sitzheizungen im Fahrzeug oder für Fußboden- oder Wandheizungen. Üblicherweise weisen derartige elektrische Heizelemente eine Vielzahl von Heizfäden auf, die in einem Stützgewebe angeordnet oder die direkt in eine Polsterschicht eingebracht sind. Insbesondere bei in beweglichen Polsterelementen eingebrachten Heizfäden sind diese ausgeprägten Wechselbelassungen unterworfen, die zu Alterungserscheinungen und teilweise zu Brüchen führen können. Auch die Verarbeitung der Heizfäden ist relativ aufwändig und kann unter Umständen zu Beschädigungen führen, beispielsweise wenn einzelne Heizfäden beim Vernähen der Polsterelemente oder einzelner Bestandteile der Polsterelemente verletzt oder beschädigt werden.For many Applications require electrically operable surface heating elements, for example as seat heaters in the vehicle or for floor or wall heating. Usually such electrical heating elements have a multiplicity of heating filaments, in a supporting tissue arranged or which are introduced directly into a cushion layer. Especially when introduced in movable padding filaments are this pronounced Subject to change exposures, the aging phenomena and can sometimes lead to fractures. Also the processing of filaments is relatively expensive and may possibly to damage to lead, For example, if individual filaments when sewing the Upholstery elements or individual components of the upholstery elements injured or damaged become.
Elektrische Heizelemente mit Carbonfäden bzw. -fasern als Heizleiter sind zwar relativ unempfindlich gegen Verletzungen durch eine Nähnadel, da einzelne dieser Fäden problemlos verletzt werden können, ohne dass die Gesamtfunktion dadurch beeinträchtigt wird. Allerdings sind diese Carbonfasern kaum dehnbar, so dass sie in Schleifen oder mäanderförmig verlegt werden müssten, sofern eine hohe Dehnbarkeit benötigt wird.electrical Heating elements with carbon threads or fibers as heat conductors are indeed relatively insensitive to injuries through a sewing needle, as single of these threads can be easily injured, without affecting the overall function. However, they are These carbon fibers are hardly extensible, so they are laid in loops or meandering would have to if required a high elasticity becomes.
Ein Ziel der vorliegenden Erfindung besteht darin, eine flächige Heizvorrichtung zur Verfügung zu stellen, die eine möglichst hohe Flexibilität, eine hohe mechanische Robustheit sowie eine günstige Wärmeverteilung beim Betrieb aufweist.One The aim of the present invention is a flat heating device to disposal to ask the one as possible high flexibility, a high mechanical robustness and a favorable heat distribution during operation having.
Dieses Ziel der Erfindung wird mit dem Gegenstand des unabhängigen Anspruchs erreicht. Merkmale vorteilhafter Weiterbildungen der Erfindung ergeben sich aus den abhängigen Ansprüchen.This The aim of the invention is the subject of the independent claim reached. Features of advantageous developments of the invention result from the dependent ones Claims.
Eine Vorrichtung zum Heizen einer nachgiebigen Oberfläche mit den Merkmalen des Anspruchs 1 sieht vor, dass eine elektrisch leitfähige Widerstandsschicht ein Material mit einer sehr hohen Reißfestigkeit und einer ausreichend hohen thermischen Leitfähigkeit aufweist. Die elektrische Leitfähigkeit des für die Widerstandsschicht verwendeten Materials muss ebenfalls ausreichend hoch sein, um dem gewünschten Einsatzzweck zu genügen.A Apparatus for heating a resilient surface having the features of claim 1 provides that an electrically conductive resistance layer Material with a very high tear resistance and sufficient high thermal conductivity having. The electrical conductivity of the for the Resistance layer used material must also be sufficient be high to the desired Purpose to meet.
Als Widerstandsschicht kommen insbesondere Bestandteile aus Kunststoff-Gel, Silikon oder Gummi bzw. Kautschuk in Frage, die jeweils darin eingebettete elektrisch leitfähige Partikel aufweisen. Diese Partikel können beispielsweise Metallpartikel, Rußpartikel oder elektrisch leitfähige Kunststoffe sein. Zur Erhöhung der Zähigkeit und der Reißfestigkeit des Kunststoffmaterials können zusätzliche Stützfasern eingearbeitet sein, beispielsweise aus einem hochfesten und sehr flexiblen Kunststoff.When Resistance layer are in particular components made of plastic gel, Silicone or rubber or rubber in question, each embedded therein electrically conductive Have particles. These particles may be, for example, metal particles, soot particles or electrically conductive Be plastics. To increase toughness and tear resistance of the plastic material additional support fibers be incorporated, for example, from a high-strength and very flexible plastic.
Eine derartige Vorrichtung weist eine hohe Lebensdauer auf, ist korrosionsfest, ermöglicht eine sehr komfortable Sitzdruckverteilung und ist in einem einzigen Prozessschritt herstellbar, beispielsweise durch einen Gieß- oder Spritzgießprozess. Zudem ist die Vorrichtung problemlos übernähbar, ohne dass irgendwelche Beschädigungen dabei auftreten können.A Such device has a long service life, is corrosion-resistant, allows a very comfortable seat pressure distribution and is in a single Process step produced, for example, by a casting or Injection molding process. In addition, the device is easily überähbar without any damage can occur.
Wahlweise kann die erfindungsgemäße Vorrichtung aus mehreren übereinander angeordneten Lagen aus Kunststoff-Gel hergestellt sein, bei dem jeweils Elektroden an gegenüber liegenden Seiten angeordnet sind. Die erfindungsgemäße Vorrichtung ist allseitig dehnbar, wobei die Dehnbarkeit durch einen Vernetzungsgrad des Kunststoffes variabel sein kann. Auch metallische Partikel führen nicht zu einer Korrosionsanfälligkeit, da sie allseitig eingebettet sind.Optional can the device of the invention from several over each other arranged layers can be made of plastic gel, in each case Electrodes opposite lying sides are arranged. The device according to the invention is extensible on all sides, the extensibility being due to a degree of crosslinking of the plastic can be variable. Also metallic particles do not lead to a susceptibility to corrosion, because they are embedded on all sides.
Ein besonderer Vorteil der erfindungsgemäßen Vorrichtung besteht darin, dass es Teil einer Polsterschicht sein kann, beispielsweise in oberflächennahen Bereichen wie bei Sitzauflagen oder beispielsweise bei Lenkradumschäumungen.One particular advantage of the device according to the invention is that it may be part of a cushioning layer, for example near the surface Areas such as seat covers or, for example, steering wheel foams.
Als derartige Kunststoffe für die elektrisch leitfähige Widerstandsschicht kommt insbesondere ein Polyuhrethan-Gel (PUR-Gel) mit einer Zwei-Phasen-Struktur in Frage.When such plastics for the electrically conductive Resistance layer comes in particular a polyurethane gel (PUR gel) with a two-phase structure in question.
Das Material der elektrisch leitfähigen Widerstandsschicht kann bspw. eine spezifisch Reißfestigkeit von mindestens 50 N/mm2, vorzugsweise von mehr als 60 N/mm2 aufweisen. Weiterhin kann es eine spezifische thermische Leitfähigkeit von mindestens 0,3 W/mK, vorzugsweise jedoch von mehr als 1,0 W/mK aufweisen.The material of the electrically conductive resistance layer may, for example, have a specific tensile strength of at least 50 N / mm 2 , preferably of more than 60 N / mm 2 . Furthermore, it may have a specific thermal conductivity of at least 0.3 W / mK, but preferably more than 1.0 W / mK.
Die
Erfindung wird nachfolgend anhand eines Ausführungsbeispiels unter Bezugnahme
auf die beiliegende Zeichnung näher
erläutert.
Die einzige Figur zeigt eine hochflexible Kunststoffgelmatte
Aufgrund
ihrer günstigen
mechanischen Eigenschaften kann die Gelmatte
- 1010
- KunststoffgelmatteKunststoffgelmatte
- 1212
- Elektrodeelectrode
- 1414
- Elektrodeelectrode
- 1616
- elektrische Zuleitungelectrical supply
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200410034836 DE102004034836A1 (en) | 2004-07-19 | 2004-07-19 | Device for heating a flexible surface, in particular, of a vehicle seat is at least partly made of a protective material with a high tearing strength and a high thermal conductivity |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200410034836 DE102004034836A1 (en) | 2004-07-19 | 2004-07-19 | Device for heating a flexible surface, in particular, of a vehicle seat is at least partly made of a protective material with a high tearing strength and a high thermal conductivity |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102004034836A1 true DE102004034836A1 (en) | 2006-03-16 |
Family
ID=35853158
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200410034836 Withdrawn DE102004034836A1 (en) | 2004-07-19 | 2004-07-19 | Device for heating a flexible surface, in particular, of a vehicle seat is at least partly made of a protective material with a high tearing strength and a high thermal conductivity |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102004034836A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007001132A1 (en) * | 2007-01-03 | 2008-07-10 | Recaro Gmbh & Co. Kg | Vehicle seat, particularly motor vehicle seat, has seat component which is provided with seat heater that has carbon nano tubes as ohmic resistance |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE853777C (en) * | 1949-03-18 | 1952-10-27 | Adolf Roebig | Electric heating resistor for low temperatures, especially for heating pads, and process for their manufacture |
DE2148191B2 (en) * | 1971-09-27 | 1974-12-05 | Reuter Maschinen- Und Werkzeugbau Gmbh, 2844 Lemfoerde | Wireless panel heating elements and processes for their manufacture |
DE2614433B2 (en) * | 1975-04-07 | 1980-10-02 | N.V. Philips' Gloeilampenfabrieken, Eindhoven (Niederlande) | Self-regulating heating element |
WO2003005769A2 (en) * | 2001-07-04 | 2003-01-16 | Braincom Ag | Surface heater, method for the production thereof and heatable object in addition to a system for recognising the occupancy of a seat, a seat fitted with said system and method for recognising the occupancy of a seat |
DE20310682U1 (en) * | 2003-07-11 | 2003-09-18 | Trw Automotive Safety Sys Gmbh | Vehicle steering wheel with heating element |
-
2004
- 2004-07-19 DE DE200410034836 patent/DE102004034836A1/en not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE853777C (en) * | 1949-03-18 | 1952-10-27 | Adolf Roebig | Electric heating resistor for low temperatures, especially for heating pads, and process for their manufacture |
DE2148191B2 (en) * | 1971-09-27 | 1974-12-05 | Reuter Maschinen- Und Werkzeugbau Gmbh, 2844 Lemfoerde | Wireless panel heating elements and processes for their manufacture |
DE2614433B2 (en) * | 1975-04-07 | 1980-10-02 | N.V. Philips' Gloeilampenfabrieken, Eindhoven (Niederlande) | Self-regulating heating element |
WO2003005769A2 (en) * | 2001-07-04 | 2003-01-16 | Braincom Ag | Surface heater, method for the production thereof and heatable object in addition to a system for recognising the occupancy of a seat, a seat fitted with said system and method for recognising the occupancy of a seat |
DE20310682U1 (en) * | 2003-07-11 | 2003-09-18 | Trw Automotive Safety Sys Gmbh | Vehicle steering wheel with heating element |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007001132A1 (en) * | 2007-01-03 | 2008-07-10 | Recaro Gmbh & Co. Kg | Vehicle seat, particularly motor vehicle seat, has seat component which is provided with seat heater that has carbon nano tubes as ohmic resistance |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
8139 | Disposal/non-payment of the annual fee |