EP3016475A1 - Dispositif dote de surfaces pouvant etre chauffees pour la dissipation homogene de chaleur - Google Patents

Dispositif dote de surfaces pouvant etre chauffees pour la dissipation homogene de chaleur Download PDF

Info

Publication number: EP3016475A1
Authority: EP; European Patent Office
Prior art keywords: voltage; fibers; surge; heating power; fleece
Prior art date: 2014-10-30
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.): Granted

Application number

EP15187190.2A

Other languages

German (de)

English (en)

Other versions

EP3016475B1 (fr

Inventor

Ute MAXI

Rafik MAXI

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.)

Maxitex GmbH

Original Assignee

Maxitex GmbH

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.)

2014-10-30

Filing date

2015-09-28

Publication date

2016-05-04

2015-09-28 Application filed by Maxitex GmbH filed Critical Maxitex GmbH

2016-05-04 Publication of EP3016475A1 publication Critical patent/EP3016475A1/fr

2017-03-01 Application granted granted Critical

2017-03-01 Publication of EP3016475B1 publication Critical patent/EP3016475B1/fr

Status Active legal-status Critical Current

2035-09-28 Anticipated expiration legal-status Critical

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Classifications

- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/20—Heating elements having extended surface area substantially in a two-dimensional [2D] plane, e.g. plate-heater
- H05B3/34—Heating elements having extended surface area substantially in a two-dimensional [2D] plane, e.g. plate-heater flexible, e.g. heating nets or webs
- H05B3/342—Heating elements having extended surface area substantially in a two-dimensional [2D] plane, e.g. plate-heater flexible, e.g. heating nets or webs heaters used in textiles
- 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
- H05B1/00—Details of electric heating devices
- H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
- H05B1/0227—Applications
- H05B1/0252—Domestic applications
- H05B1/0272—For heating of fabrics

Definitions

the invention relates to a device with a heatable surface of homogeneous heat distribution comprising an electrically highly conductive fleece comprising electrically insulating fibers and electrically conductive fibers, a control device, by means of which a voltage is adjustable to a current flow required in the device for achieving the desired heating power to ensure lines by means of which the contact to the control device for a data and / or signal exchange and / or a supply of the web with electrical energy can be produced and the density of the electrically conductive fibers is so high that when voltage is applied, a current flow comes.
nonwoven fabric The use of conductive fibers in a nonwoven fabric is characterized by the fact that it is flexible and allows a sufficient homogeneous conductivity. Such nonwovens, however, are mostly used as electromagnetic compatibility (EMC) protection and as drainage textile. These nonwoven fabrics do not show sufficient stability of the electrical property profile.
EMC electromagnetic compatibility
WO 2007 110 06 181 A1 is a cellulose spunbond described as a surface heater.
a power of up to 2 kW per square meter is achieved with a modular, contiguously contacted surface unit of 1 m length x 1 m width.
the surface heater is characterized by a low production cost and good performance characteristics.
the unusual voltage level with its high insulation requirements results in only a minimal achievable surface resistance of the structure of 500 ohms in the area mentioned.
this device should be quickly and easily adaptable to different sizes, as well as inexpensive to manufacture and install and durable.
Another object of the invention is to provide such a low basis weight device to ensure a wide range of applications.
the control unit changes the electrical property profile of the nonwoven, wherein the electrical conductivity of the nonwoven increases or the electrical resistance of the nonwoven is reduced.
the control unit does not regulate the fleece by means of a voltage change, in the sense that the operating voltage is adapted to the desired heating power.
a control would be effected by means of a sensor which measures physical parameters, such as the temperature, and increases or decreases the voltage and thus the current flow required to achieve the desired heating power.
a corroded contact works like a diode in lock-up mode.
the resistance is so great that no current can flow.
This "breakdown voltage” is at least 13 mV, but preferably 24mV to 30mV. The current flow continues until a certain (other) voltage is fallen below again.
the fleece changes its current intensity and thus the heating power as a function of the supply voltage.
a sufficient density of the fibers contained in the fleece is necessary.
the sufficient density of the fibers contained in the nonwoven, in particular the electrically conductive fibers is required so that they at least partially touch and thus a flow of current can even come about.
the minimum fiber density is at a steel content, in particular stainless steel, of at least 7.5 vol.% In the Entity of the fleece to ensure a homogeneous flow of electricity at all. Understandably, a higher steel content in the entirety of the nonwoven fabric is also conceivable.
the breakthrough lies within the voltage interval, which can be bridged by the height of the surge.
additional and additional bridges require a shock with a higher voltage value.
the gradual increase of the voltages in the successive surges leads to the formation of more and more bridges, consequently a higher conductivity or a lower resistance of the web and the formation of higher currents.
the electrical resistance becomes so low that, when returning to the operating voltage, the current flow or the heating power will be greater than desired, ie the actual value is above the desired value.
the required accuracy of the application or the tolerable measurement errors specify an interval around the actual value in which the desired value should be later. At a large interval, the voltage values of the adjacent successive surges may be greater, so that in a few steps, the control process is completed, as if a very narrow range of values for the actual value is specified.
the voltage values of adjacent and successively applied surges increasing from control step to control step are smaller in their difference, the higher the requirements for the accuracy of the desired actual value becomes. Conversely, if the accuracy requirements are low, the voltage difference between adjacent surges may be correspondingly greater than the deviations from the actual value.
the voltage and thus the current flow at the control unit manually and / or automatically adjustable.
the device regulates itself, which is additionally connected and / or integrated with a control system for self-regulation and / or self-evaluation. It is within the skill of the art to make such a designed controller.
Such an amplitude modulation of the control is important to the safety system, as this leads to an increase in the detectability of the fault currents.
the safety system serves to prevent fire.
the strands and / or wires woven in the fabric are additionally needled with the fibers in the nonwoven production process, sewn, calendered and / or flamed to allow optimal contact.
the strands and / or wires of the fabric are contacted directly in the needling process with the electrically conductive fibers by penetrating the electrically conductive leads and optimally use the surface of the leads.
the needles allow for optimal contacting between the fabric and the web as the conductive fibers are transported from the open-structured web to the fabric.
the contacting can be fixed by further process steps, such as calendering, flaming, needle loom finish and / or lamination.
the fabric is contacted with the conductive yarns and / or conductive threads with the fabric.
the contacting may also be such that a combination of strands, wires, conductive yarns and / or conductive threads is used. For a complete contacting of the entire surface can be realized, and to achieve a maximum contact surface.
the selectivity can be defined in addition to the process chain.
Such a nonwoven with the property profile of a pressure sensor is used for example for intelligent monitoring and / or as intercommunication of floor systems. This allows anonymous, large-scale monitoring of activities of an area.
the nonwoven fabric (101) is additionally a sensory nonwoven, whereby this to a fixed cross sensitivity by adding highly conductive additives to the fiber material, such as silver or silver fibers, is adjustable by an electrical base network is realized, which is fixable in other process chains. In this way, in the production of the web (101) a cross-sensitivity is adjustable.
the nonwoven (101) has the property profile of a temperature sensor, pressure sensor and / or moisture sensor.
the fleece (101) reacts only to a physical size with a known cross-sensitivity.
FIG. 2 shows a schematic isometric view of the fabric (111) with the integrated lines (110) in the weft and / or warp direction (112, 113), which are light and weather resistant and chemically stable. Leads, wires, conductive yarns and / or conductive threads are woven into the fabric.
the fabric (111) with the integrated lines (110) is contacted over its entire surface with the nonwoven (101), so that an electrically highly conductive network with mechanically temporarily stable contacting bridges is formed due to the mechanical, chaotic metal-metal contacting of the individual fibers.
the strands and / or wires woven in the fabric (111) are additionally needled, calendered and / or flamed with the fibers (103, 104) or the conductive yarns and / or conductive threads are contacted with the nonwoven fabric (101) , This allows optimal contact.
FIG. 4 shows a diagram of the voltage waveform upon application of the device according to the invention for generating a lower electrical resistance.
the ordinate is the voltage U and the abscissa the time t.
⁇ U 1 is briefly applied to the device.
⁇ U 1 is the voltage which is above the operating voltage at the first surge and exceeds this by the specified value.

Landscapes

Engineering & Computer Science (AREA)
Textile Engineering (AREA)
Nonwoven Fabrics (AREA)
Surface Heating Bodies (AREA)
Woven Fabrics (AREA)

EP15187190.2A 2014-10-30 2015-09-28 Dispositif dote de surfaces pouvant etre chauffees pour la dissipation homogene de chaleur Active EP3016475B1 (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE102014115846.6A DE102014115846A1 (de)	2014-10-30	2014-10-30	Vorrichtung mit heizbarer Flächen von homogener Wärmeverteilung

Publications (2)

Publication Number	Publication Date
EP3016475A1 true EP3016475A1 (fr)	2016-05-04
EP3016475B1 EP3016475B1 (fr)	2017-03-01

Family

ID=54252023

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP15187190.2A Active EP3016475B1 (fr)	2014-10-30	2015-09-28	Dispositif dote de surfaces pouvant etre chauffees pour la dissipation homogene de chaleur

Country Status (5)

Country	Link
EP (1)	EP3016475B1 (fr)
DE (1)	DE102014115846A1 (fr)
DK (1)	DK3016475T3 (fr)
ES (1)	ES2627197T3 (fr)
PL (1)	PL3016475T3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CN115410747A (zh) *	2021-05-28	2022-11-29	科德宝两合公司	导电的无纺布、包括这种无纺布的接地环及其配置
DE202023100751U1 (de)	2022-12-05	2023-03-24	Green Energy Flies Ag	Mehrschichtige Heizmatte für eine elektrische Bodenheizung oder elektrische Wandheizung

Citations (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4534886A (en) *	1981-01-15	1985-08-13	International Paper Company	Non-woven heating element
DE69217220T2 (de) *	1991-06-12	1997-08-21	Hakan Rodin	Geheizter fussboden
DE19911519A1 (de)	1999-03-16	2000-10-26	Sika Werke Gmbh	Flächenheizer auf Vlies- oder Gewebebasis
WO2007110061A1 (fr)	2006-03-24	2007-10-04	Thüringisches Institut für Textil- und Kunststoff-Forschung e.V.	Chauffage plat avec ouate de cellulose conductrice
DE202011100936U1 (de)	2011-05-19	2011-09-21	Thomas Becher	Textile Heizflächen
DE202013006258U1 (de)	2013-07-11	2013-10-11	IMM Ingenieurbüro GmbH	Vorrichtung zum Erzeugen von heizbaren Flächen mit homogener Wärmeverteilung
FR2992139A1 (fr) *	2012-06-13	2013-12-20	Tekcem	Dispositif de chauffage pour un corps humain

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB0513058D0 (en)	2005-06-27	2005-08-03	Sandoz Ag	Organic compounds

2014
- 2014-10-30 DE DE102014115846.6A patent/DE102014115846A1/de not_active Withdrawn
2015
- 2015-09-28 DK DK15187190.2T patent/DK3016475T3/en active
- 2015-09-28 ES ES15187190.2T patent/ES2627197T3/es active Active
- 2015-09-28 EP EP15187190.2A patent/EP3016475B1/fr active Active
- 2015-09-28 PL PL15187190T patent/PL3016475T3/pl unknown

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4534886A (en) *	1981-01-15	1985-08-13	International Paper Company	Non-woven heating element
DE69217220T2 (de) *	1991-06-12	1997-08-21	Hakan Rodin	Geheizter fussboden
DE19911519A1 (de)	1999-03-16	2000-10-26	Sika Werke Gmbh	Flächenheizer auf Vlies- oder Gewebebasis
WO2007110061A1 (fr)	2006-03-24	2007-10-04	Thüringisches Institut für Textil- und Kunststoff-Forschung e.V.	Chauffage plat avec ouate de cellulose conductrice
DE202011100936U1 (de)	2011-05-19	2011-09-21	Thomas Becher	Textile Heizflächen
FR2992139A1 (fr) *	2012-06-13	2013-12-20	Tekcem	Dispositif de chauffage pour un corps humain
DE202013006258U1 (de)	2013-07-11	2013-10-11	IMM Ingenieurbüro GmbH	Vorrichtung zum Erzeugen von heizbaren Flächen mit homogener Wärmeverteilung

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CN115410747A (zh) *	2021-05-28	2022-11-29	科德宝两合公司	导电的无纺布、包括这种无纺布的接地环及其配置
DE202023100751U1 (de)	2022-12-05	2023-03-24	Green Energy Flies Ag	Mehrschichtige Heizmatte für eine elektrische Bodenheizung oder elektrische Wandheizung
EP4383939A1 (fr)	2022-12-05	2024-06-12	Green Energy Flies AG	Tapis chauffant multicouche pour chauffage électrique de sol ou chauffage électrique de mur
WO2024121031A1 (fr)	2022-12-05	2024-06-13	Green Energy Flies Ag	Tapis chauffant multicouche pour le chauffage électrique du sol ou des murs

Also Published As

Publication number	Publication date
DK3016475T3 (en)	2017-06-19
ES2627197T3 (es)	2017-07-27
PL3016475T3 (pl)	2017-09-29
EP3016475B1 (fr)	2017-03-01
DE102014115846A1 (de)	2016-05-04

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