EP3740030A2 - Élément chauffant plan - Google Patents

Élément chauffant plan Download PDF

Info

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
Application number
EP20152880.9A
Other languages
German (de)
English (en)
Other versions
EP3740030A3 (fr
Inventor
Michael Steidle
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP3740030A2 publication Critical patent/EP3740030A2/fr
Publication of EP3740030A3 publication Critical patent/EP3740030A3/fr
Pending legal-status Critical Current

Links

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
    • H05B3/10—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)
EP20152880.9A 2019-05-14 2020-01-21 Élément chauffant plan Pending EP3740030A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102019112528.6A DE102019112528A1 (de) 2019-05-14 2019-05-14 Flächenheizelement

Publications (2)

Publication Number Publication Date
EP3740030A2 true EP3740030A2 (fr) 2020-11-18
EP3740030A3 EP3740030A3 (fr) 2020-12-02

Family

ID=69185510

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20152880.9A Pending EP3740030A3 (fr) 2019-05-14 2020-01-21 Élément chauffant plan

Country Status (2)

Country Link
EP (1) EP3740030A3 (fr)
DE (1) DE102019112528A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4145956A1 (fr) * 2021-09-07 2023-03-08 Benecke-Kaliko AG Structure en nappe souple

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5902518A (en) * 1997-07-29 1999-05-11 Watlow Missouri, Inc. Self-regulating polymer composite heater
WO2008133562A1 (fr) * 2007-04-30 2008-11-06 Intelliohm Ab Dispositif de chauffage
EP2062771A1 (fr) * 2007-11-21 2009-05-27 Delphi Technologies, Inc. Chauffage électrique pour siège de véhicule et système d'avertissement pour ceinture de sécurité
DE102009034307A1 (de) * 2009-07-21 2011-01-27 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Hochtemperaturheizung sowie Verfahren zu dessen Herstellung
WO2017147480A1 (fr) * 2016-02-24 2017-08-31 LMS Consulting Group Encre ctp électroconductrice à températures de double commutation et ses applications dans des dispositifs de chauffage souples à double commutation
JP7010584B2 (ja) * 2016-03-14 2022-02-10 ザ・ボーイング・カンパニー 複合パネルおよびシステム制御モジュールを備えたシステム
DE202018100685U1 (de) * 2018-02-08 2018-02-26 Suncoat Gmbh Elektrisch betreibbares Flächenheizelement

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4145956A1 (fr) * 2021-09-07 2023-03-08 Benecke-Kaliko AG Structure en nappe souple

Also Published As

Publication number Publication date
EP3740030A3 (fr) 2020-12-02
DE102019112528A1 (de) 2020-11-19

Similar Documents

Publication Publication Date Title
DE2005565C3 (de) Als gedruckte Schaltung ausgeführte Schalterplatte und Verfahren zur Herstellung derselben
DE60106568T3 (de) Verglasung mit elektrischem anschluss
DE10297325T5 (de) Spannungsveränderliches Trägermaterial
DE3937346A1 (de) Elektrisch beheizbare autoglasscheibe aus verbundglas
DE3910861C2 (de) Organischer PTC-Thermistor
DE102009034306B4 (de) Heizelement sowie Verfahren zu dessen Herstellung
EP3815462B1 (fr) Vitrage doté d'un élément de raccordement électrique et câble de raccordement
EP0304595A1 (fr) Unité de chauffage électrique
EP1844526A1 (fr) Dispositif pour produire un flux de courant electrique a travers des fibres de carbone
DE112015004819T5 (de) Filmartige Leiterplatte und Verfahren zur Herstellung derselbigen
EP2806709B1 (fr) Surface électriquement conductrice
EP3740030A2 (fr) Élément chauffant plan
EP1924125B1 (fr) Feuille pouvant être chauffée
DE20319024U1 (de) Flächenheizelement
DE102014200443B4 (de) Sensorelement zur Bestimmung von Dehnungen
DE102011107134B4 (de) Spiegelglas für eine Kraftfahrzeug-Außenrückblickspiegelanordnung und Verfahren zu dessen Herstellung
EP1020505B1 (fr) Rubans adhésifs électroconducteurs et leur préparation
DE102014226210A1 (de) Elektrisch leitfähiges polymeres Flächengebilde
DE102009016368A1 (de) Schaltungsträger mit elektrischen Leiterbahnen
DE4114701A1 (de) Elektrischer verbinder in flachbauweise
DE202018106646U1 (de) Ein elektrisches Anschlusselement
DE102005027652A1 (de) Elektrisch leitfähige, mechanisch flexible Verbindung zwischen elektrischen bzw. elektronischen Bauteilen
EP1705959B1 (fr) Elemnt electroluminescent
EP3509404A1 (fr) Agencement de circuit ainsi que dispositif d'éclairage et phare
DE102010063406A1 (de) Hochspannungswiderstand, Herstellungsverfahren

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

RIC1 Information provided on ipc code assigned before grant

Ipc: H05B 3/14 20060101ALI20201023BHEP

Ipc: H05B 3/06 20060101AFI20201023BHEP

Ipc: H05B 3/34 20060101ALI20201023BHEP

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20210531

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20221108