EP1601235B1 - Monitoring device suitable for flexible heating elements - Google Patents
Monitoring device suitable for flexible heating elements Download PDFInfo
- Publication number
- EP1601235B1 EP1601235B1 EP05006383A EP05006383A EP1601235B1 EP 1601235 B1 EP1601235 B1 EP 1601235B1 EP 05006383 A EP05006383 A EP 05006383A EP 05006383 A EP05006383 A EP 05006383A EP 1601235 B1 EP1601235 B1 EP 1601235B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- monitoring device
- conductors
- heating
- contact
- conductor
- 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.)
- Ceased
Links
- 238000010438 heat treatment Methods 0.000 title claims description 56
- 238000012806 monitoring device Methods 0.000 title claims description 16
- 230000009975 flexible effect Effects 0.000 title claims description 9
- 239000004020 conductor Substances 0.000 claims description 74
- 239000000463 material Substances 0.000 claims description 12
- 238000011156 evaluation Methods 0.000 claims description 9
- 238000009413 insulation Methods 0.000 claims description 8
- 238000013021 overheating Methods 0.000 claims description 8
- 239000004753 textile Substances 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 230000006378 damage Effects 0.000 claims description 4
- 239000000155 melt Substances 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims 3
- 238000009940 knitting Methods 0.000 claims 1
- 238000001514 detection method Methods 0.000 description 8
- 229920000049 Carbon (fiber) Polymers 0.000 description 3
- 239000004917 carbon fiber Substances 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- H05B3/20—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
- H05B3/342—Heating elements having extended surface area substantially in a two-dimensional 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
- H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
- H05B2203/002—Heaters using a particular layout for the resistive material or resistive elements
- H05B2203/003—Heaters using a particular layout for the resistive material or resistive elements using serpentine layout
-
- 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
- H05B2203/002—Heaters using a particular layout for the resistive material or resistive elements
- H05B2203/005—Heaters using a particular layout for the resistive material or resistive elements using multiple resistive elements or resistive zones isolated from each other
-
- 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
- H05B2203/002—Heaters using a particular layout for the resistive material or resistive elements
- H05B2203/007—Heaters using a particular layout for the resistive material or resistive elements using multiple electrically connected resistive elements or resistive zones
-
- 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
- H05B2203/014—Heaters using resistive wires or cables not provided for in H05B3/54
-
- 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
- H05B2203/017—Manufacturing methods or apparatus for heaters
-
- 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
Definitions
- the present invention relates to a control and monitoring device for preventing overheating in flexible, flat surface heating elements, which consist of at least two opposing contact conductors of electrically conductive, uninsulated fibers or wires, between which run a plurality of heating conductors, which are electrically connected to the contact conductors ,
- This type of surface heating elements are used primarily for seat heaters in motor vehicles. Due to chemical and mechanical influences such as water, salt and movement on the seat, both the heating conductors and the contact conductors are attacked over time and destroyed locally.
- the DE 4 101 290 and G 90 075 19 discloses a heating element whose mechanical life is to be extended by contact strips with undulating course, which indeed reduces the problem of overheating but can not prevent.
- a heating element whose mechanical life is to be extended by contact strips with undulating course, which indeed reduces the problem of overheating but can not prevent.
- surface coatings of silver and tin are known, but which are destroyed by electro-corrosion in the presence of salt and moisture in conjunction with electrical voltages.
- the mechanism of destruction is running so that either break the head of the contact strips by constant bending and compression and thus the cross section of the contact strip tapers at the kink or the contact conductors are chemically attacked and decompose or the contact resistance of heat conductor on the Contact conductor increases, so that more heat output is generated.
- the installation of a temperature sensor can not exclude the thermal problems at the contact conductors in the above heating elements
- US 4,547,658 A deals with electric heating wires, which at the same time have a temperature control.
- this object is achieved by a control and monitoring device to prevent overheating in flexible, flat surface heating elements, which consist of at least two opposing contact conductors of electrically conductive, uninsulated fibers or wires, between which run a plurality of heating conductors, which with the contact conductors electrically conductive are connected, wherein an additional conductor is placed over the heating element and is coupled to an evaluation unit, which cooperates with a current-voltage source for the heating element to prevent overheating.
- the additional conductor carries an insulation made of plastic or paint, which does not melt when used as intended and thus prevents the heating conductor and the additional conductor get electrical contact.
- a detection conductor monitors two or more contact strips as additional conductors, the latter being guided from one contact strip along the heating conductor to the next contact strip.
- This electrical connection is made by the evaluation unit, e.g. detected a remote control unit and the heating element is turned off before the occurrence of a fire from the power source.
- this control unit is also the control device for the operating temperature of the heating element at the same time.
- claim 2 allow in particular the safe operation of heating elements with metallic contact conductors and interconnected heating conductors made of carbon fibers. Since these generate high temperatures in the case of defects on the contact strip, considerable damage can occur due to the high melting temperature of the carbon fibers.
- the features of claim 5 and 6 ensure that the insulation is not already damaged in the manufacturing process, since in certain working methods pointed needles are used, which can hurt the insulation. Specifically, carbon fibers are drawn from the needles through the insulation to the conductor so that undesirable electrical contact is made.
- the heating element after Fig. 1 consists of a two-part textile surface heating element 4, the upper part of which has a wavy heating conductor and the lower part of which is arranged in the form of a network heating conductor.
- an additional conductor 1 is arranged in the form of a detection conductor.
- the detection conductors are brought together and connected to an evaluation circuit 11.
- the heating conductors 8.1, 8.2 are formed as CarbonMapleiter and the additional conductor 1 as a rectilinear detection head.
- this arrangement is not mandatory, but it can be modified from case to case by metallic heating conductors or other Schuleitermaterialien.
- the additional conductors can be performed at any angle over the heating element, but they should remain outside the temperature sensing range, which is indicated in the present example in the lower terminal end of the contact conductor by a temperature sensor 5.
- a section of the heating element is shown in cross-sectional shape.
- the contact conductors 3 and the carbon heating conductors 8 are present as filaments.
- the additional conductor consists of a detection conductor 1 which consists in its core of a steel filament 7, which is provided with a coating material of a melt insulation 6. Now, if the coating material melts at a corresponding temperature of the carbon heater 8, the steel filaments 7 come into contact with the under current CarbonCloudleitern 8. This gives a signal to the evaluation circuit 11, so that the power supply to the heating element can be interrupted. This eliminates the risk of overheating of the heating element.
- the monitoring device according to the invention thus consists of the additional conductors in the form of detection conductors 1 and the evaluation circuit 11. It is therefore relatively easy to introduce into a heating element and causes little additional cost. Due to its simple structure, the monitoring device according to the invention is immune to interference and provides safe protection against excessive heating during the entire life of a mecanicncopyimplantations.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Control Of Resistance Heating (AREA)
- Resistance Heating (AREA)
- Surface Heating Bodies (AREA)
- Central Heating Systems (AREA)
Description
Die vorliegende Erfindung betrifft eine Kontroll- und Überwachungseinrichtung zur Vermeidung von Überhitzungen bei flexiblen, textilen Flächenheizelementen, die aus mindestens zwei sich gegenüberliegenden Kontaktleitern aus elektrisch leitfähigen, unisolierten Fasern oder Drähten bestehen, zwischen denen mehrere Heizleiter verlaufen, welche mit den Kontaktleitern elektrisch leitend verbunden sind.The present invention relates to a control and monitoring device for preventing overheating in flexible, flat surface heating elements, which consist of at least two opposing contact conductors of electrically conductive, uninsulated fibers or wires, between which run a plurality of heating conductors, which are electrically connected to the contact conductors ,
Aus der
Diese Art von Flächenheizelementen werden in erster Linie für Sitzheizungen in Kraftfahrzeugen eingesetzt. Aufgrund von chemischen und mechanischen Einflüssen wie Wasser, Salz und Bewegung auf dem Sitz werden sowohl die Heizleiter als auch die Kontaktleiter im Laufe der Zeit angegriffen und lokal zerstört.This type of surface heating elements are used primarily for seat heaters in motor vehicles. Due to chemical and mechanical influences such as water, salt and movement on the seat, both the heating conductors and the contact conductors are attacked over time and destroyed locally.
Werden Teile der Kontaktleiter zerstört, so ergeben sich Übergangawiderstände und damit lokale Wärmeentwicklungen entlang der Kontaktleisten die zu unzulässigen Erwärmungen des Heizelementes führen können.If parts of the contact conductors are destroyed, transition resistance and thus local heat developments along the contact strips that can lead to inadmissible heating of the heating element result.
Die
Daher ist es Aufgabe der vorliegenden Erfindung eine Überwachungsreinrichtung der eingangs genannten Art zu entwickeln, welche verhindert, dass das Heizelement an oder in der Nähe der Kontaktleiter so heiß wird, dass die zulässige thermische Grenztemperatur der umliegenden Materialien überschritten wird.It is therefore an object of the present invention to develop a monitoring device of the type mentioned above, which prevents the heating element at or in the vicinity of the contact conductor is so hot that the allowable thermal limit temperature of the surrounding materials is exceeded.
Erfindungsgemäß wird diese Aufgabe gelöst durch eine Kontroll- und Überwachungseinrichtung zur Vermeidung von Überhitzungen bei flexiblen, textilen Flächenheizelementen, die aus mindestens zwei sich gegenüberliegenden Kontaktleitern aus elektrisch leitfähigen, unisolierten Fasern oder Drähten bestehen, zwischen denen mehrere Heizleiter verlaufen, welche mit den Kontaktleitern elektrisch leitend verbunden sind, wobei ein Zusatzleiter über die Heizleiter gelegt ist und mit einer Auswerteeinheit gekoppelt ist, die mit einer Strom-Spannungsquelle für die Heizleiter zur Vermeidung von Überhitzungen zusammen wirkt.According to the invention this object is achieved by a control and monitoring device to prevent overheating in flexible, flat surface heating elements, which consist of at least two opposing contact conductors of electrically conductive, uninsulated fibers or wires, between which run a plurality of heating conductors, which with the contact conductors electrically conductive are connected, wherein an additional conductor is placed over the heating element and is coupled to an evaluation unit, which cooperates with a current-voltage source for the heating element to prevent overheating.
Der Zusatzleiter trägt eine Isolierung aus Kunststoff oder Lack, welche bei bestimmungsmäßigem Gebrauch nicht schmilzt und somit verhindert, dass der Heizleiter und der Zusatzleiter elektrischen Kontakt bekommen. Es sind dabei auch Ausführungsformen denkbar, bei denen ein Detektionsleiter als Zusatzleiter zwei oder mehrere Kontaktleisten überwacht, wobei dieser von einer Kontaktleiste entlang der Heizleiter bis zur nächsten Kontaktleiste geführt wird.The additional conductor carries an insulation made of plastic or paint, which does not melt when used as intended and thus prevents the heating conductor and the additional conductor get electrical contact. In this case, embodiments are also conceivable in which a detection conductor monitors two or more contact strips as additional conductors, the latter being guided from one contact strip along the heating conductor to the next contact strip.
Entsteht irgendwo im Bereich des Detektionsleiters eine ausreichend hohe Temperatur im Bereich der Kontaktleiste oder der über die Kontaktleiste verlaufenden Heizleiter, so schmilzt die Isolierung und der Detektionsleiter bekommt elektrischen Kontakt mit den darunter liegenden nicht isolierten Heiz- und/oder Kontaktleitern.If there is a sufficiently high temperature in the area of the contact strip or the heating conductor extending over the contact strip somewhere in the region of the detection conductor, then so The insulation melts and the detection conductor gets electrical contact with the underlying non-insulated heating and / or contact conductors.
Diese elektrische Verbindung wird von der Auswerteeinheit, z.B. einem entfernten Steuergerät erfasst und das Heizelement wird vor Entstehung eines Brandes von der Strom-Spannungsquelle abgeschaltet. Vorzugsweise ist dieses Steuergerät auch gleichzeitig das Regelgerät für die Betriebstemperatur des Heizelements.This electrical connection is made by the evaluation unit, e.g. detected a remote control unit and the heating element is turned off before the occurrence of a fire from the power source. Preferably, this control unit is also the control device for the operating temperature of the heating element at the same time.
Die Merkmale in Anspruch 2 ermöglichen insbesondere den sicheren Betrieb von Heizelementen mit metallischen Kontaktleitern und untereinander verbundenen Heizleitern aus Kohlefasern. Da diese hohe Temperaturen bei Fehlstellen an der Kontaktleiste erzeugen, kann es aufgrund der hohen Schmelztemperatur der Kohlefasern zu erheblichen Schäden kommen.The features of claim 2 allow in particular the safe operation of heating elements with metallic contact conductors and interconnected heating conductors made of carbon fibers. Since these generate high temperatures in the case of defects on the contact strip, considerable damage can occur due to the high melting temperature of the carbon fibers.
Die Merkmale aus Anspruch 3 stellen sicher, dass der Zusatzleiter seinerseits den mechanischen Knick- und Stauchbelastungen gewachsen ist und nicht im Bereich der Kontaktleiste zerstört wird. Dies wird erfindungsgemäß durch einen elektrisch zwar nur mäßig leitenden Stahlleiter erreicht, der aber hervorragende mechanische Stabilität aufweist.The features of
Die Merkmale aus Anspruch 5 und 6 stellen sicher, dass die Isolierung nicht schon beim Herstellungsprozess beschädigt wird, da in bestimmten Wirkverfahren spitze Nadeln eingesetzt werden, die die Isolierung verletzen können. Speziell Kohlefaser werden von den Nadeln durch die Isolierung hindurch bis zum Leiter gezogen, so dass ein unerwünschter elektrischer Kontakt hergestellt wird.The features of
Die Merkmale aus Anspruch 7 und 8 verhindern eine Zerstörung des Zusatzleiters durch mechanische Beanspruchungen.The features of
Im folgenden wird die Erfindung anhand mehrerer Ausführungsbeispiele erläutert. Es zelgen:
Figur 1- Draufsicht auf ein erfindungsgemäßes flexibles Heizelement
- Figur 2
- Darstellung eines Ausschnitts X des flexiblen Heizelements nach
Fig. 1 als Querschnitt des Flächenheizelements im Bereich eines Kontaktleiters
- FIG. 1
- Top view of a flexible heating element according to the invention
- FIG. 2
- Representation of a section X of the flexible heating element according to
Fig. 1 as a cross section of the surface heating element in the region of a contact conductor
Das Heizelement nach
An beiden Seitenrändern des flexiblen Heizelementes befindet sich ein Bereich von Kontaktleitern 3.1, 3.2, die über entsprechende Zuführungsleitungen 9, 10 mit einer Spannungsquelle (nicht dargestellt) verbunden sind.On both side edges of the flexible heating element is a range of contact conductors 3.1, 3.2, which are connected via
Parallel zu den Kontaktleitern 3.1, 3.2 rum Innenbereich des I leizelementes ist je ein Zusatzleiter 1 in Form eines Detektionsleiters angeordnet. Im unteren Bereich des Heizelementes, etwa auf der Höhe der Zufuhrleitungen 9, 10 werden die Detektionsleiter zusammengeführt und mit einer Auswerteschaltung 11 verbunden.Parallel to the contact conductors 3.1, 3.2 rum inside region of the I leizelementes an
Im vorliegenden Beispiel sind die Heizleiter 8.1, 8.2 als Carbonheizleiter und die Zusatzleiter 1 als geradlinig verlaufende Detektionsleiter ausgebildet. Diese Anordnung ist aber nicht zwingend, sondern sie kann fallweise auch abgewandelt werden durch metallische Heizleiter oder andere Heizleitermaterialien. Auch können die Zusatzleiter in jedem beliebigem Winkel über das Heizelement geführt werden, sie sollten jedoch außerhalb des Temperaturfühlerbereichs bleiben, der im vorliegenden Beispiel im unteren Anschlussende der Kontaktleiter durch einen Temperaturfühler 5 angedeutet Ist.In the present example, the heating conductors 8.1, 8.2 are formed as Carbonheizleiter and the
Aus
Die erfindungsgemäße Überwachungseinrichtung besteht somit aus den Zusatzleitern in Form von Detektionsleitern 1 und der Auswerteschaltung 11. Sie ist daher verhältnismäßig leicht in ein Heizelement einzubringen und verursacht kaum zusätzliche Kosten. Aufgrund ihres einfachen Aufbaus ist die erfindungsgemäße Überwachungseinrichtung störunanfällig und bietet während der gesamten Lebensdauer eines Flächenheizelementes einen sicheren Schutz gegen übermäßige Erwärmung.The monitoring device according to the invention thus consists of the additional conductors in the form of
Claims (10)
- A controlling and monitoring device for avoiding damage through overheating in the case of flexible, textile surface heating elements which include at least two opposed contact conductors (3.1, 3.2), made of electrically conducting, non-insulated fibres or wires, between which there extends a plurality of heating conductors (8) which are electrically conductively connected to the contact conductors (3.1, 3.2) and to a current/voltage source, and which further include a base material, characterised in that at least one additional electric conductor (1) is positioned along at least one contact conductor over the heating conductors (8), wherein the additional conductor (1) is electrically insulated by a covering material and is connected to an electrical or electronic evaluation unit (11), and in that the covering material has a melting point or softening range which is above the usual heating temperature of the surface heating element, but below the permissible thermal limit temperature of the surrounding materials and of the base material (12), wherein, in the case of overheating, the coating material melts and the heating conductors (8.1, 8.2), together with the additional conductor, form an electrical contact through which an electric current flows to the electrical or electronic evaluation unit for the purpose of controlling overheating, which evaluation unit is connected to the current/voltage source.
- A monitoring device for heating elements according to claim 1, characterised in that the contact conductors (3.1, 3.2) consist of stranded metal wires and the heating conductors (8.1, 8.2) consist of wave-shaped carbon fibres contacting one another at intervals.
- A monitoring device according to any one of claims 1 and 2, characterised in that the core of the additional conductor (1) consists of a filament (7) made of steel.
- A monitoring device according to any one of claims 1 to 3, characterised in that the melting point of the insulation (6) of the additional conductor (1) is between 110°C and 150°C.
- A monitoring device according to any one of claims 1 to 4, characterised in that both the heating conductors (8.1, 8.2) and the contact conductors (3.1, 3.2) are knitted into a textile base material and the additional conductor (1) is applied to the heating conductors (8.1, 8.2) subsequent to the knitting process.
- A monitoring device according to any one of claims 1 to 5, characterised in that the heating conductors (8.1, 8.2), the contact conductors (3.1, 3.2) and the additional conductor (1) are sewn onto a textile base material (12).
- A monitoring device according to any one of claims 1 to 6, characterised in that the additional conductor (1) extends in a wave-like way in the plane of the heating element (4).
- A monitoring device according to any one of claims 1 to 7, characterised in that the additional conductor (1) consists of a textile thread around which, in the direction of its axis, one or more electrically conducting metal strips are wound and which is provided with an insulation over the metal strips.
- A monitoring device according to any one of claims 1 to 8, characterised in that the evaluation unit (11) is connected to a control unit for separating the current/voltage source from the supply lines (9, 10).
- A monitoring device according to any one of claims 1 to 9, characterised in that the control unit is embodied as a closed-loop control unit for the closed-loop control of the operating temperature of the heating element.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102004026458A DE102004026458A1 (en) | 2004-05-29 | 2004-05-29 | Monitoring device for flexible heating elements |
| DE102004026458 | 2004-05-29 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1601235A2 EP1601235A2 (en) | 2005-11-30 |
| EP1601235A3 EP1601235A3 (en) | 2007-08-29 |
| EP1601235B1 true EP1601235B1 (en) | 2011-01-12 |
Family
ID=34934455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP05006383A Ceased EP1601235B1 (en) | 2004-05-29 | 2005-03-23 | Monitoring device suitable for flexible heating elements |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US7067776B2 (en) |
| EP (1) | EP1601235B1 (en) |
| DE (2) | DE102004026458A1 (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4494460B2 (en) * | 2004-03-08 | 2010-06-30 | ヴィー・エー・テー・オートモーティヴ・システムス・アクチェンゲゼルシャフト | Flat heating element |
| US20110068098A1 (en) * | 2006-12-22 | 2011-03-24 | Taiwan Textile Research Institute | Electric Heating Yarns, Methods for Manufacturing the Same and Application Thereof |
| GB0721547D0 (en) * | 2007-11-01 | 2007-12-12 | Heat Trace Ltd | Self-regulating electrical heating cable |
| WO2013084668A1 (en) * | 2011-12-09 | 2013-06-13 | 日産自動車株式会社 | Cloth-like heater |
| TWI587731B (en) * | 2012-08-31 | 2017-06-11 | Misuzu Industry Co Ltd | A heater, and a fixture, an image forming device, and a heating device |
| ES2813579T3 (en) | 2015-01-12 | 2021-03-24 | Laminaheat Holding Ltd | Tissue heating element |
| DE102015219019A1 (en) * | 2015-07-24 | 2017-01-26 | Johnson Controls Gmbh | HEATABLE HEADREST PILLOW |
| EP3366080A1 (en) | 2015-10-19 | 2018-08-29 | LaminaHeat Holding Ltd. | Laminar heating elements with customized or non-uniform resistance and/or irregular shapes, and processes for manufacture |
| DE102017116489B4 (en) * | 2017-07-21 | 2023-03-16 | Phoenix Contact Gmbh & Co. Kg | Protective device for protecting an electrical consumer |
| DE102018210035A1 (en) * | 2018-06-20 | 2019-12-24 | Robert Bosch Gmbh | Textile element |
| USD911038S1 (en) | 2019-10-11 | 2021-02-23 | Laminaheat Holding Ltd. | Heating element sheet having perforations |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3472289A (en) * | 1966-11-10 | 1969-10-14 | Brunswick Corp | Heater fabric |
| NL7315574A (en) * | 1973-11-14 | 1975-05-16 | Benoit De La Bretoniere Andre | TISSUE. |
| US4547658A (en) * | 1984-06-13 | 1985-10-15 | Sunbeam Corporation | Multiple heat fusing wire circuit for underblankets |
| JPS62100968A (en) * | 1985-10-29 | 1987-05-11 | 東レ株式会社 | String heater element and manufacture of the same |
| DE9007519U1 (en) | 1990-06-28 | 1992-05-21 | Wärme- und Elektrotechnik B. Ruthenberg GmbH, 8000 München | Electric surface heating element |
| DE4101290C2 (en) | 1991-01-17 | 1994-11-03 | Ruthenberg Gmbh Waermetechnik | Electric surface heating element |
| JP3037525B2 (en) * | 1993-04-12 | 2000-04-24 | 松下電器産業株式会社 | Fever sheet |
| DE19831574C2 (en) * | 1998-07-14 | 2002-08-22 | Wet Automotive Systems Ag | Seat heating and method for heating a seat |
| US6403935B2 (en) * | 1999-05-11 | 2002-06-11 | Thermosoft International Corporation | Soft heating element and method of its electrical termination |
| US6713733B2 (en) * | 1999-05-11 | 2004-03-30 | Thermosoft International Corporation | Textile heater with continuous temperature sensing and hot spot detection |
-
2004
- 2004-05-29 DE DE102004026458A patent/DE102004026458A1/en not_active Withdrawn
-
2005
- 2005-03-23 EP EP05006383A patent/EP1601235B1/en not_active Ceased
- 2005-03-23 DE DE502005010827T patent/DE502005010827D1/en not_active Expired - Lifetime
- 2005-05-24 US US11/137,354 patent/US7067776B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| EP1601235A2 (en) | 2005-11-30 |
| DE102004026458A1 (en) | 2006-01-05 |
| DE502005010827D1 (en) | 2011-02-24 |
| EP1601235A3 (en) | 2007-08-29 |
| US7067776B2 (en) | 2006-06-27 |
| US20050263519A1 (en) | 2005-12-01 |
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