EP1305554B1 - Antenna radiation heater for heating a material by using resonance - Google Patents

Antenna radiation heater for heating a material by using resonance Download PDF

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Publication number
EP1305554B1
EP1305554B1 EP01957819A EP01957819A EP1305554B1 EP 1305554 B1 EP1305554 B1 EP 1305554B1 EP 01957819 A EP01957819 A EP 01957819A EP 01957819 A EP01957819 A EP 01957819A EP 1305554 B1 EP1305554 B1 EP 1305554B1
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EP
European Patent Office
Prior art keywords
radiation
antenna
mole fractions
radiation coating
coating
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EP01957819A
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German (de)
French (fr)
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EP1305554A1 (en
Inventor
Helmut Reichelt
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Moletherm Holding AG
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Moletherm Holding AG
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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
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/64—Heating using microwaves
    • H05B6/72—Radiators or antennas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D13/00—Electric heating systems

Definitions

  • the invention relates to an antenna radiation heater for heating a Matter by resonance according to the preamble of claim 1.
  • a known generic antenna radiation heater for heating a matter by resonance (WO00 / 25552) comprises several surface antenna elements, each of a carrier surface material and one on it applied radiation coating, which spaced by two parallel electrical conductors with electrical contact as antenna limiters is limited. With this radiation coating is electromagnetic high-frequency radiation can be emitted.
  • the antenna radiation heating includes a harmonic generator used for excitation of the radiation coating for the emission of a vibrational spectrum in the range of molecular Natural vibration frequencies of the matter to be heated to the two electrical conductors of a planar antenna element is coupled.
  • a multiple array of planar antenna elements is shown in such a way that in a corner of the room twelve rectangular surface antenna elements - four next to each other and three on top of each other - with small distances arranged and electrically connected in parallel.
  • the drive takes place by means of the harmonic generator.
  • the surface antenna elements should be relatively large area, the individual areas not can be increased as desired, because then the heating effect is reduced again. It is therefore appropriate, the specified or a similar multiple arrangement of planar antenna elements.
  • the control of the electrical supply lines takes place in the low-voltage range, z. B. with 24 volts.
  • the operationally relatively cool radiation coating a planar antenna element can therefore without the risk of electrical Be touched, d. H. a touch is completely uncritical.
  • a multiple arrangement significant potential differences may occur. These are likely in parallel circuits by phase shifts the vibration spectra of the individual surface antenna elements be conditional. In the event that multiple surface antenna elements in range of a technician or a heating user lie thus the risk of an electric shock, if two or several surface antenna elements are touched.
  • Such an electrical Although stroke is not regularly dangerous and harmful to health, can However, they are perceived as extremely unpleasant.
  • the object of the invention is therefore to provide a generic antenna radiation heater so educate that the risk of electric shock is not more is given.
  • the radiation coating is one-sided on the carrier surface material applied and forms one of the matter to be heated facing Element front.
  • a Touch protection layer applied.
  • the material of such a contact protection layer is to be chosen so that on the one hand the radiation coating is electrically insulated against contact and on the other hand, the radiation the vibration spectrum with no or at least with little attenuation is possible.
  • the two properties of the radiation coating as electrical Insulating layer to avoid electric shock when touched two elements and for a radiation-damping or low-radiation Radiation of the vibration spectrum are in this combination essential.
  • the support surface material is preferred as the element back also have electrical insulation properties, but in Contrary to the contact protection layer, the radiation of the vibration spectrum dampen completely or at least very strongly. This ensures that the radiation energy as a whole or at least in large part over the Element front side is radiated, resulting in a particularly energy-saving Warming of matter leads.
  • a suitable contact layer according to claim 3, which comprises the aforementioned Properties, may consist of an aqueous, finely dispersed, plasticizer-free, medium-viscosity copolymer dispersion of acrylic and methacrylic esters consist, preferably a solids content of about 50% and has an average particle size of about 0.1 microns.
  • a suitable contact layer according to claim 4 of an aqueous, protective colloid-containing, medium-viscosity polymer dispersion Vinyl acetate, versatic acid vinyl ester and di-n-butyl maleate preferably a solids content of about 50-55% and a medium Particle size of about 0.2 microns.
  • the coating material of the radiation coating can be known per se and proven manner according to the specified in claim 5 Composition can be chosen.
  • the specified sulforated oil is being preferred from sulfated castor oil and the indicated phenols advantageously carbonated, cracked phenols or it is Benzisothiazolinone used.
  • the diluent is a solvent based on aromatics and / or alcohol and / or ester and / or Ketonbasis proven while dispersing an inorganic and / or organic, monomeric and / or polymeric substance is particularly suitable.
  • Insulating agent suitable is insulating carbon black and the coating material should contain a thixotropic agent.
  • the radiation coating and the contact protection layer can with applied and manufactured known methods. Especially preferred become according to claim 6, the radiation coating and / or after their solidification made the contact protection layer by doctoring.
  • the mole fractions of casein or optionally of polyacrylates cause Radiation damping in conjunction with a doctoring process to the back of the element, especially when the radiation coating on Paper material is applied.
  • the contact protection layer is expediently produced by doctoring, wherein layer thicknesses of about 5-10 microns are regularly sufficient for a contact protection and still cause no adverse attenuation of the radiation on the front element side.
  • the harmonic generator comprises, as part of a control / regulation device, an electrical component, which when driven with a drive oscillation, a steep current slew rate has a steep rising edge and so that it is suitable for generating a high harmonic content.
  • the electric Block may be, for example, a triac or a double MOSFET with the associated, known per se electronic drive components.
  • the Resönanzanowski takes the required energy as needed from the connected electrical network, the heating effect by Change in the amplitudes and / or the frequency of the drive oscillations at least partially controllable and / or controllable.
  • the electrical conductors in per se known Form as parallel aligned copper foil strips.
  • a known cover of copper foil strips as Antennenbegrenzer with an electrical insulating layer (DD 208 029) can also be performed become.
  • the electrical contact to the radiation coating is capacitive and / or inductive coupling formed.
  • the specified contact protection if according to claim 9 the multiple antenna surface elements in mutual range arranged, electrically connected in parallel and by means of a harmonic generator are excitable. Even if several harmonic generators for the Antenna surface elements are used, there is a risk of electrical Beat by the aforementioned potential differences, so that Here is a contact protection with an electrical insulation layer essential is.
  • a compact, visually appealing arrangement results in a conventional manner according to claim 10, when all antenna surface elements have a same rectangular area and are connected in parallel in a symmetrical arrangement with small supply line lengths.
  • Fig. 1 is a perspective view of a room corner 1 is shown in FIG an antenna radiation heater 2 is installed.
  • the antenna radiation heater 2 here consists, by way of example, of a combination of twelve surface antenna elements 3, each in horizontal groups of four surface antenna elements 3 in the corner 1 are grouped symmetrically.
  • the surface antenna elements 3 are rectangular surface elements formed and each at their narrow sides together in connection points 4 connected as parallel connections.
  • Each three vertical, edge-sided Surface antenna elements 3 are connected by connecting cable 5 via a Junction box 6 and with the other surface antenna elements 3 and their electrical conductors 14, 15 as copper foil tapes over the parallel connections 4 connected.
  • a control unit 7 contains in particular a harmonic generator, which in turn comprises an electrical component, which when driven with a Anberichtschwingung a steep current slew rate accordingly a steep rising edge and thus to produce a high Harmonic content is suitable.
  • an electrical component can, for. B. a triac or a double MOSFET, which is the known electronic Having drive components.
  • the control unit 7 is via the junction box 6 on the one hand connected to the surface antenna elements 3 and is on the other hand fed via a transformer 8 via a network connection 9.
  • the surface antenna elements consist 3 each of a carrier surface material 11 and a applied radiation coating 10, wherein the radiation coating 10 is applied on one side on the carrier surface material 11 and one of the matter to be heated, z. B. a person in the room, facing Element front side forms.
  • the radiation coating 10 is preferably one of the radiation coating 10 opposite one of these applied relatively thin contact protection layer 12, the radiation coating 10 on the one hand electrically insulated against contact and on the other hand the radiation of the vibration spectrum without or at least with only a small amount Damping allows.
  • the support surface material 11 is insulated as the element rear side on the one hand, the radiation coating 10 against contact electrically and On the other hand prevents the radiation of the vibration spectrum completely or at least with considerable damping.
  • the contact protection layer 12 here consists of an aqueous, finely dispersed, plasticizer-free, medium-viscosity copolymer dispersion Acrylic and methacrylic acid esters.
  • the radiation coating 10 and after its solidification also the contact protection layer 12 can each be alsgerakelt on the carrier surface material 11 become.
  • the electrical contact of the parallel oriented copper foil strips formed electrical conductors 14, 15 for radiation coating 10th is achieved via a capacitive and / or inductive coupling, wherein the Radiation coating 10 under or over the electrical conductors 14, 15 lies or - alternatively - this embedded in the radiation coating 10 are, which is not shown here.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Constitution Of High-Frequency Heating (AREA)
  • Central Heating Systems (AREA)
  • Details Of Aerials (AREA)
  • Thermotherapy And Cooling Therapy Devices (AREA)

Abstract

Disclosed is an antenna radiation heater (2) to heat material using molecular resonance. A plurality of surface antenna elements (3), each having a carrier surface material (11) and a radiation coating (10) applied thereon are connected by two spaced apart electrical conductors (14, 15) in parallel, with electrical contacts as antenna limiters and with which high-frequency electromagnetic radiation can be emitted. The antenna (2) includes a harmonic generator, coupled to electrical conductors (14, 15) of element (3) for excitation of the coating (10) for emitting an oscillation spectrum within the range of natural molecular frequencies of the material being heated. The radiation coating (10) is unilaterally applied to the carrier material (11) and forms an element front facing the material being heated. A contact protection layer (12) is applied to the radiation coating (10) which electrically insulates the radiation coating (10) against contact and also permits the emission of the oscillation spectrum without or at most with only minor attenuation.

Description

Die Erfindung betrifft eine Antennenstrahlungs-Heizung zur Erwärmung einer Materie mittels Resonanz nach dem Oberbegriff des Anspruchs 1.The invention relates to an antenna radiation heater for heating a Matter by resonance according to the preamble of claim 1.

Eine bekannte gattungsgemäße Antennenstrahlungs-Heizung zur Erwärmung einer Materie mittels Resonanz (WO00/25552) umfasst mehrere Flächenantennenelemente, die jeweils aus einem Trägerflächenmaterial und einer darauf aufgebrachten Strahlungsbeschichtung bestehen, welche durch zwei beabstandete parallele elektrische Leiter mit elektrischem Kontakt als Antennenbegrenzer begrenzt ist. Mit dieser Strahlungsbeschichtung ist elektromagnetische hochfrequente Strahlung aussendbar. Zudem umfasst die Antennenstrahlungs-heizung einen Oberwellengenerator, der für eine Anregung der Strahlungsbeschichtung zur Abstrahlung eines Schwingungsspektrums im Bereich von molekularen Eigenschwingungsfrequenzen der zu erwärmenden Materie an die beiden elektrischen Leiter eines Flächenantennenelements angekoppelt ist.A known generic antenna radiation heater for heating a matter by resonance (WO00 / 25552) comprises several surface antenna elements, each of a carrier surface material and one on it applied radiation coating, which spaced by two parallel electrical conductors with electrical contact as antenna limiters is limited. With this radiation coating is electromagnetic high-frequency radiation can be emitted. In addition, the antenna radiation heating includes a harmonic generator used for excitation of the radiation coating for the emission of a vibrational spectrum in the range of molecular Natural vibration frequencies of the matter to be heated to the two electrical conductors of a planar antenna element is coupled.

Zudem ist dort eine geeignete Strahlungsbeschichtung angegeben, die bei der beschriebenen Anregung ein geeignetes Strahlungsspektrum erzeugt.In addition, there is a suitable radiation coating specified in the described excitation generates a suitable radiation spectrum.

Weiter ist eine Mehrfachanordnung von Flächenantennenelementen gezeigt dergestalt, dass in einer Raumecke zwölf Rechteck-Flächenantennenelemente - jeweils vier nebeneinander und drei übereinander - mit geringen Abständen angeordnet und elektrisch parallel geschaltet sind. Der Antrieb erfolgt dabei mittels des Oberwellengenerators.Further, a multiple array of planar antenna elements is shown in such a way that in a corner of the room twelve rectangular surface antenna elements - four next to each other and three on top of each other - with small distances arranged and electrically connected in parallel. The drive takes place by means of the harmonic generator.

Es hat sich gezeigt, dass für eine effektive Raumheizfunktion die Flächenantennenelemente relativ großflächig sein sollen, wobei die Einzelflächen nicht beliebig vergrößerbar sind, da dann der Heizeffekt wieder reduziert wird. Es ist daher zweckmäßig, die angegebene oder eine ähnliche Mehrfachanordnung von Flächenantennenelementen zu verwenden.It has been shown that for an effective space heating function, the surface antenna elements should be relatively large area, the individual areas not can be increased as desired, because then the heating effect is reduced again. It is therefore appropriate, the specified or a similar multiple arrangement of planar antenna elements.

Die Ansteuerung der elektrischen Zuleitungen erfolgt im Niederspannungsbereich, z. B. mit 24 Volt. Die betriebsmäßig relativ kühle Strahlungsbeschichtung eines Flächenantennenelements kann daher ohne die Gefahr eines elektrischen Schlages berührt werden, d. h. eine Berührung ist völlig unkritisch. Überraschend wurde jedoch festgestellt, dass zwischen den Flächenantennenelementen einer Mehrfachanordnung erhebliche Potentialunterschiede auftreten können. Diese dürften bei Parallelschaltungen durch Phasenverschiebungen der Schwingungsspektren der einzelnen Flächenantennenelemente bedingt sein. Für den Fall, dass mehrere Flächenantennenelemente in der Reichweite eines Monteurs oder eines Heizungsnutzers liegen besteht somit die Gefahr eines elektrischen Schlages, wenn gleichzeitig zwei oder mehrere Flächenantennenelemente berührt werden. Ein solcher elektrischer Schlag ist zwar regelmäßig nicht gefährlich und gesundheitsschädigend, kann jedoch als äußerst unangenehm empfunden werden.The control of the electrical supply lines takes place in the low-voltage range, z. B. with 24 volts. The operationally relatively cool radiation coating a planar antenna element can therefore without the risk of electrical Be touched, d. H. a touch is completely uncritical. Surprisingly, however, it was found that between the surface antenna elements a multiple arrangement significant potential differences may occur. These are likely in parallel circuits by phase shifts the vibration spectra of the individual surface antenna elements be conditional. In the event that multiple surface antenna elements in range of a technician or a heating user lie thus the risk of an electric shock, if two or several surface antenna elements are touched. Such an electrical Although stroke is not regularly dangerous and harmful to health, can However, they are perceived as extremely unpleasant.

Dieses Problem ist im Stand der Technik bisher nicht erkannt und auch nicht beschrieben worden.This problem is not recognized in the prior art and not been described.

Aufgabe der Erfindung ist es daher, eine gattungsgemäße Antennenstrahlungs-Heizung so weiterzubilden, dass die Gefahr elektrischer Schläge nicht mehr gegeben ist.The object of the invention is therefore to provide a generic antenna radiation heater so educate that the risk of electric shock is not more is given.

Diese Aufgabe wird mit den Merkmalen des Anspruchs 1 gelöst. This object is achieved with the features of claim 1.

Gemäß Anspruch 1 ist die Strahlungsbeschichtung einseitig auf das Trägerflächenmaterial aufgebracht und bildet eine der zu erwärmenden Materie zugewandte Elementvorderseite. Weiter ist auf die Strahlungsbeschichtung eine Berührungsschutzschicht aufgebracht. Das Material einer solchen Berührungsschutzschicht ist so zu wählen, dass einerseits die Strahlungsbeschichtung gegen Berührung elektrisch isoliert ist und andererseits die Abstrahlung des Schwingungsspektrums ohne oder wenigstens mit nur geringer Dämpfung möglich ist. Die beiden Eigenschaften der Strahlungsbeschichtung als elektrische Isolierschicht zur Vermeidung elektrischer Schläge bei der Berührung zweier Elemente und für eine strahlungsdämpfungsfreie bzw. strahlungsdämpfungsarme Abstrahlung des Schwingungsspektrums sind in dieser Kombination wesentlich.According to claim 1, the radiation coating is one-sided on the carrier surface material applied and forms one of the matter to be heated facing Element front. Next is on the radiation coating a Touch protection layer applied. The material of such a contact protection layer is to be chosen so that on the one hand the radiation coating is electrically insulated against contact and on the other hand, the radiation the vibration spectrum with no or at least with little attenuation is possible. The two properties of the radiation coating as electrical Insulating layer to avoid electric shock when touched two elements and for a radiation-damping or low-radiation Radiation of the vibration spectrum are in this combination essential.

Nach Anspruch 2 soll zwar bevorzugt das Trägerflächenmaterial als Elementrückseite ebenfalls elektrische Isolationseigenschaften aufweisen, jedoch im Gegensatz zur Berührungsschutzschicht die Abstrahlung des Schwingungsspektrums ganz oder zumindest sehr stark dämpfen. Damit wird erreicht, dass die Strahlungsenergie insgesamt oder zumindest zu einem Großteil über die Elementvorderseite abgestrahlt wird, was zu einer besonders energiesparenden Erwärmung der Materie führt.According to claim 2, although the support surface material is preferred as the element back also have electrical insulation properties, but in Contrary to the contact protection layer, the radiation of the vibration spectrum dampen completely or at least very strongly. This ensures that the radiation energy as a whole or at least in large part over the Element front side is radiated, resulting in a particularly energy-saving Warming of matter leads.

Eine geeignete Berührungsschicht nach Anspruch 3, die die vorstehend genannten Eigenschaften aufweist, kann aus einer wässrigen, feindispersen, weichmacherfreien, mittelviskosen Copolymer-Dispersion aus Acryl- und Methacrylsäureestem bestehen, die vorzugsweise einen Festkörpergehalt von ca. 50 % und eine mittlere Teilchengröße von ca. 0,1 µm aufweist.A suitable contact layer according to claim 3, which comprises the aforementioned Properties, may consist of an aqueous, finely dispersed, plasticizer-free, medium-viscosity copolymer dispersion of acrylic and methacrylic esters consist, preferably a solids content of about 50% and has an average particle size of about 0.1 microns.

Alternativ dazu kann eine geeignete Berührungsschicht nach Anspruch 4 aus einer wässrigen, schutzkolloidhaltigen, mittelviskosen Polymer-Dispersion aus Vinylacetat, Versaticsäure-Vinylester und Maleinsäuredi-n-Butylester bestehen, die vorzugsweise einen Festkörpergehalt von ca. 50-55 % und eine mittlere Teilchengröße von ca. 0,2 µm aufweist.Alternatively, a suitable contact layer according to claim 4 of an aqueous, protective colloid-containing, medium-viscosity polymer dispersion Vinyl acetate, versatic acid vinyl ester and di-n-butyl maleate, preferably a solids content of about 50-55% and a medium Particle size of about 0.2 microns.

Das Beschichtungsmaterial der Strahlungsbeschichtung kann in an sich bekannter und bewährter Weise entsprechend der im Anspruch 5 angegebenen Zusammensetzung gewählt werden. Das angegebene sulforierte Öl besteht dabei bevorzugt aus sulfatiertem Rizinusöl und die angegebenen Phenole sind vorteilhaft karbonisierte, durch Cracken hergestellte Phenole oder es wird Benzisothiazolinon verwendet. Als Verdünnungsmittel hat sich ein Lösungsmittel auf Aromatenbasis und/oder Alkoholbasis und/oder Esterbasis und/oder Ketonbasis bewährt, während als Dispergiermittel eine anorganische und/oder organische, monomere und/oder polymere Substanz besonders geeignet ist. Als Isoliermittel ist isolierender Russ geeignet und das Beschichtungsmaterial soll ein Thixotropierungsmittel enthalten.The coating material of the radiation coating can be known per se and proven manner according to the specified in claim 5 Composition can be chosen. The specified sulforated oil is being preferred from sulfated castor oil and the indicated phenols advantageously carbonated, cracked phenols or it is Benzisothiazolinone used. The diluent is a solvent based on aromatics and / or alcohol and / or ester and / or Ketonbasis proven while dispersing an inorganic and / or organic, monomeric and / or polymeric substance is particularly suitable. Insulating agent suitable is insulating carbon black and the coating material should contain a thixotropic agent.

Die Strahlungsbeschichtung und die Berührungsschutzschicht können mit an sich bekannten Verfahren aufgebracht und hergestellt werden. Besonders bevorzugt werden nach Anspruch 6 die Strahlungsbeschichtung und/oder nach deren Verfestigung die Berührungsschutzschicht durch Aufrakeln hergestellt. Insbesondere bewirken die Stoffmengenanteile von Casein oder ggf. von Polyacrylaten in Verbindung mit einem Aufrakelverfahren eine Strahlungsdämpfung zur Elementrückseite hin, insbesondere wenn die Strahlungsbeschichtung auf Papiermaterial aufgebracht wird. Auch die Berührungsschutzschicht wird zweckmäßig durch Aufrakeln hergestellt, wobei Schichtdicken von ca. 5-10 µm für einen Berührungsschutz regelmäßig ausreichend sind und dabei noch keine ungünstige Dämpfung der Abstrahlung an der Elementvorderseite bewirken.The radiation coating and the contact protection layer can with applied and manufactured known methods. Especially preferred become according to claim 6, the radiation coating and / or after their solidification made the contact protection layer by doctoring. In particular, the mole fractions of casein or optionally of polyacrylates cause Radiation damping in conjunction with a doctoring process to the back of the element, especially when the radiation coating on Paper material is applied. Also, the contact protection layer is expediently produced by doctoring, wherein layer thicknesses of about 5-10 microns are regularly sufficient for a contact protection and still cause no adverse attenuation of the radiation on the front element side.

In an sich bekannter Weise ist eine geeignete Anregung der Strahlungsbeschichtung nach Anspruch 7 dergestalt möglich, dass der Oberwellengenerator als Bestandteil eines Steuer-/Regelgeräts einen elektrischen Baustein umfasst, welcher bei Ansteuerung mit einer Ansteuerschwingung eine steile Stromanstiegsgeschwindigkeit entsprechend einer steilen Anstiegsflanke aufweist und damit zur Erzeugung eines hohen Oberwellenanteils geeignet ist. Der elektrische Baustein kann beispielsweise ein Triac oder ein Doppel-MOSFET sein mit den zugeordneten, an sich bekannten elektronischen Ansteuerkomponenten. Die Resönanzanordnung nimmt sich die benötigte Energie je nach Bedarf aus dem angeschlossenen elektrischen Netz, wobei die Heizwirkung durch Veränderung der Amplituden und/oder der Frequenz der Ansteuerschwingungen zumindest teilweise steuerbar und/oder regelbar ist.In a manner known per se, a suitable excitation of the radiation coating according to claim 7 possible such that the harmonic generator comprises, as part of a control / regulation device, an electrical component, which when driven with a drive oscillation, a steep current slew rate has a steep rising edge and so that it is suitable for generating a high harmonic content. The electric Block may be, for example, a triac or a double MOSFET with the associated, known per se electronic drive components. The Resönanzanordnung takes the required energy as needed from the connected electrical network, the heating effect by Change in the amplitudes and / or the frequency of the drive oscillations at least partially controllable and / or controllable.

Nach Anspruch 8 ist es zweckmäßig, die elektrischen Leiter in an sich bekannter Weise als parallel ausgerichtete Kupferfolienbänder auszubilden. Eine an sich bekannte Abdeckung von Kupferfolienbändern als Antennenbegrenzer mit einer elektrischen Isolierschicht (DD 208 029) kann ebenfalls durchgeführt werden. Der elektrische Kontakt zur Strahlungbeschichtung ist als kapazitive und/oder induktive Ankopplung ausgebildet.According to claim 8, it is expedient, the electrical conductors in per se known Form as parallel aligned copper foil strips. A known cover of copper foil strips as Antennenbegrenzer with an electrical insulating layer (DD 208 029) can also be performed become. The electrical contact to the radiation coating is capacitive and / or inductive coupling formed.

Besonders wesentlich ist der angegebene Berührungsschutz, wenn nach Anspruch 9 die mehreren Antennenflächenelemente in gegenseitiger Reichweite angeordnet, elektrisch parallelgeschaltet und mittels eines Oberwellengenerators anregbar sind. Auch dann, wenn mehrere Oberwellengeneratoren für die Antennenflächenelemente verwendet sind, besteht die Gefahr eines elektrischen Schlages durch die eingangs erwähnten Potentialdifferenzen, so dass auch hier ein Berührungsschutz mit einer elektrischen Isolationsschicht wesentlich ist.Particularly important is the specified contact protection, if according to claim 9 the multiple antenna surface elements in mutual range arranged, electrically connected in parallel and by means of a harmonic generator are excitable. Even if several harmonic generators for the Antenna surface elements are used, there is a risk of electrical Beat by the aforementioned potential differences, so that Here is a contact protection with an electrical insulation layer essential is.

Eine kompakte, optisch ansprechende Anordnung ergibt sich in an sich bekannter Weise nach Anspruch 10, wenn alle Antennenflächenelemente eine gleiche rechtwinklige Fläche aufweisen und in einer symmetrischen Anordnung mit geringen Zuleitungslängen parallel geschaltet sind.
Anhand einer Zeichnung wird die Erfindung näher erläutert. A compact, visually appealing arrangement results in a conventional manner according to claim 10, when all antenna surface elements have a same rectangular area and are connected in parallel in a symmetrical arrangement with small supply line lengths.
Reference to a drawing, the invention is explained in detail.

Es zeigen:

Fig. 1
eine perspektivische Darstellung einer Antennenstrahlungs-Heizung zur Erwärmung einer Materie als Raumheizung, und
Fig. 2
eine schematische Querschnittsansicht entlang der Linie A-A der Fig. 1.
Show it:
Fig. 1
a perspective view of an antenna radiation heater for heating a matter as space heating, and
Fig. 2
a schematic cross-sectional view along the line AA of Fig. 1st

In der Fig. 1 ist eine perspektivische Darstellung einer Raumecke 1 gezeigt, in der eine Antennenstrahlungs-Heizung 2 installiert ist. Die Antennenstrahlungs-Heizung 2 besteht hier beispielhaft aus einer Kombination von zwölf Flächenantennenelementen 3, die jeweils in horizontalen Gruppen von vier Flächenantennenelementen 3 in der Raumecke 1 symmetrisch gruppiert sind.In Fig. 1 is a perspective view of a room corner 1 is shown in FIG an antenna radiation heater 2 is installed. The antenna radiation heater 2 here consists, by way of example, of a combination of twelve surface antenna elements 3, each in horizontal groups of four surface antenna elements 3 in the corner 1 are grouped symmetrically.

Dabei sind die Flächenantennenelemente 3 als rechtwinklige Flächenelemente ausgebildet und jeweils an ihren Schmalseiten miteinander in Verbindungspunkten 4 als Parallelverbindungen verbunden. Jeweils drei vertikale, randseitige Flächenantennenelemente 3 sind durch Verbindungskabel 5 über eine Verteilerdose 6 und mit den anderen Flächenantennenelementen 3 bzw. deren elektrischen Leitern 14, 15 als Kupferfolienbänder über die Parallelverbindungen 4 verbunden.In this case, the surface antenna elements 3 are rectangular surface elements formed and each at their narrow sides together in connection points 4 connected as parallel connections. Each three vertical, edge-sided Surface antenna elements 3 are connected by connecting cable 5 via a Junction box 6 and with the other surface antenna elements 3 and their electrical conductors 14, 15 as copper foil tapes over the parallel connections 4 connected.

Ein Steuergerät 7 enthält insbesondere einen Oberwellengenerator, der wiederum einen elektrischen Baustein umfasst, welcher bei Ansteuerung mit einer Ansteuerschwingung eine steile Stromanstiegsgeschwindigkeit entsprechend einer steilen Anstiegsflanke aufweist und damit zur Erzeugung eines hohen Oberwellenanteils geeignet ist. Ein derartiger elektrischer Baustein kann z. B. ein Triac oder ein Doppel-MOSFET sein, der die an sich bekannten elektronischen Ansteuerkomponenten aufweist. Das Steuergerät 7 ist über die Verteilerdose 6 einerseits mit den Flächenantennenelementen 3 verbunden und wird andererseits über einen Trafo 8 über einen Netzanschluss 9 gespeist. A control unit 7 contains in particular a harmonic generator, which in turn comprises an electrical component, which when driven with a Ansteuerschwingung a steep current slew rate accordingly a steep rising edge and thus to produce a high Harmonic content is suitable. Such an electrical component can, for. B. a triac or a double MOSFET, which is the known electronic Having drive components. The control unit 7 is via the junction box 6 on the one hand connected to the surface antenna elements 3 and is on the other hand fed via a transformer 8 via a network connection 9.

Wie dies insbesondere aus der Fig. 2 ersichtlich ist, die eine schematische Teilschnittansicht entlang der Linie A-A der Fig. 1 zeigt, bestehen die Flächenantennenelemente 3 jeweils aus einem Trägerflächenmaterial 11 und einer darauf aufgebrachten Strahlungsbeschichtung 10, wobei die Strahlungsbeschichtung 10 einseitig auf das Trägerflächenmaterial 11 aufgebracht ist und eine der zu erwärmenden Materie, z. B. eine Person im Raum, zugewandte Elementvorderseite bildet. Wie dies der Fig. 2 zudem weiter zu entnehmen ist, ist auf die Strahlungsbeschichtung 10 eine dieser gegenüber vorzugsweise relativ dünne Berührungsschutzschicht 12 aufgebracht, die die Strahlungsbeschichtung 10 einerseits gegen Berührung elektrisch isoliert und andererseits die Abstrahlung des Schwingungsspektrums ohne oder wenigstens mit nur geringer Dämpfung ermöglicht.As can be seen in particular from FIG. 2, which is a schematic Partial sectional view taken along the line A-A of Fig. 1, the surface antenna elements consist 3 each of a carrier surface material 11 and a applied radiation coating 10, wherein the radiation coating 10 is applied on one side on the carrier surface material 11 and one of the matter to be heated, z. B. a person in the room, facing Element front side forms. As can also be seen from FIG. 2, is preferably one of the radiation coating 10 opposite one of these applied relatively thin contact protection layer 12, the radiation coating 10 on the one hand electrically insulated against contact and on the other hand the radiation of the vibration spectrum without or at least with only a small amount Damping allows.

Dem gegenüber isoliert das Trägerflächenmaterial 11 als Elementrückseite einerseits die Strahlungsbeschichtung 10 gegenüber Berührung elektrisch und verhindert andererseits die Abstrahlung des Schwingungsspektrums ganz oder wenigstens mit erheblicher Dämpfung.On the other hand, the support surface material 11 is insulated as the element rear side on the one hand, the radiation coating 10 against contact electrically and On the other hand prevents the radiation of the vibration spectrum completely or at least with considerable damping.

Beispielhaft besteht die Berührungsschutzschicht 12 hier aus einer wässrigen, feindispersen, weichmacherfreien, mittelviskosen Copolymer-Dispersion aus Acryl- und Metacrylsäureestern.By way of example, the contact protection layer 12 here consists of an aqueous, finely dispersed, plasticizer-free, medium-viscosity copolymer dispersion Acrylic and methacrylic acid esters.

In der Fig. 2 ist zudem mit den Pfeilen 13 die Abstrahlung des Schwingungsspektrums dargestellt.In addition, in FIG. 2 the arrows 13 show the radiation of the vibration spectrum shown.

Die Strahlungsbeschichtung 10 und nach deren Verfestigung auch die Berührungsschutzschicht 12 können jeweils auf das Trägerflächenmaterial 11 aufgerakelt werden.The radiation coating 10 and after its solidification also the contact protection layer 12 can each be aufgerakelt on the carrier surface material 11 become.

Der elektrische Kontakt von den als parallel ausgerichteten Kupferfolienbändern ausgebildeten elektrischen Leitern 14, 15 zur Strahlungsbeschichtung 10 wird über eine kapazitive und/oder induktive Ankopplung erreicht, wobei die Strahlungsbeschichtung 10 unter oder über den elektrischen Leitern 14, 15 liegt bzw. - alternativ dazu - diese in die Strahlungsbeschichtung 10 eingebettet sind, was hier allerdings nicht dargestellt ist.The electrical contact of the parallel oriented copper foil strips formed electrical conductors 14, 15 for radiation coating 10th is achieved via a capacitive and / or inductive coupling, wherein the Radiation coating 10 under or over the electrical conductors 14, 15 lies or - alternatively - this embedded in the radiation coating 10 are, which is not shown here.

Mit einem derartigen Aufbau der Antennenstrahlungs-Heizung 2 aus einer Mehrzahl von Flächenantennenelementen 3, die in gegenseitiger Reichweite angeordnet sind, wird somit die Gefahr eines elektrischen Schlages bei der Berührung von zwei oder mehreren Flächenantennenelementen 3 durch einen Monteur vollkommen ausgeschaltet.With such a structure of the antenna radiation heater 2 of a Plurality of planar antenna elements 3, which are in mutual reach are arranged, thus the risk of electric shock in the Touching two or more surface antenna elements 3 by a Fitter completely switched off.

Claims (10)

  1. Antenna radiation heater (2) for heating a material by using resonance,
    with a number of surface antenna elements (3), each consisting of a carrier surface material (11) and a radiation coating (10) applied thereon which is delimited by two spaced parallel electrical conductors (14, 15) with electrical contact as antenna limiters and with which high-frequency electromagnetic radiation can be emitted, and
    with a harmonic generator (7), which is coupled to the two electrical conductors of a surface antenna element for an excitation of the radiation coating for the emission of an oscillation spectrum within the range of molecular natural frequencies of the material to be heated,
    characterized in that
    the radiation coating (10) is applied to one side of the carrier surface material (11) and forms an element front side, facing the material to be heated, and on the radiation coating (10) there is applied a contact protection layer (12) which, on the one hand, electrically insulates the radiation coating (10) against contact and, on the other hand, permits the emission of the oscillation spectrum without attenuation or at least with only minor attenuation.
  2. Antenna radiation heater according to Claim 1, characterized in that the carrier surface material (11) as the element's reverse side, on the one hand, electrically insulates the radiation coating (10) against contact and, on the other hand, prevents the emission of the oscillation spectrum entirely or at least with considerable attenuation.
  3. Antenna radiation heater according to Claim 1 or Claim 2, characterized in that the contact protection layer (12) consists of an aqueous, finely dispersed, plasticizer-free, medium viscosity copolymer dispersion of acrylic and methacrylic acid esters.
  4. Antenna radiation heater according to Claim 1 or Claim 2, characterized in that the contact protection layer (12) consists of an aqueous, protective colloidal, medium viscosity polymer dispersion of vinyl acetate, versatic acid vinyl ester and maleic acid di-n-butyl ester.
  5. Antenna radiation heater according to one of Claims 1 to 4, characterized in that the coating material of the radiation coating (10) is composed of binding agent, insulating agent, dispersing agent, water and graphite and is composed of
    a. 55 to 65% mole fractions of a base material comprising 39 to 49% mole fractions of binding agent, 18 to 23% mole fractions of insulating agent, 18 to 24% mole fractions of dispersing agent, 12 to 16% mole fractions of distilled water
    and
    b. 35 to 45% mole fractions of graphite,
    the binding agent being composed of 64 to 79% mole fractions of distilled water, 4 to 6% mole fractions of sulfonated oil, 0.15 to 0.24% mole fractions of phenols, or 0.05 to 0.5% mole fractions of benzisothiazolinone, 15 to 19% mole fractions of casein, 0.8 to 1.2% mole fractions of urea, 2 to 3% mole fractions of alkaline thinning agent, and 2.5 to 3.5% mole fractions of caprolactam.
  6. Antenna radiation heater according to one of Claims 1 to 5, characterized in that the radiation coating (10) and/or, after its solidification, the contact protection layer (12) are produced by means of blade spreading.
  7. Antenna radiation heater according to one of Claims 1 to 6, characterized in that the harmonic generator as a component of an open-loop/closed-loop control device (7) comprises an electrical module which, upon activation with an activating oscillation, has a steep rate of current increase in accordance with a steep rising edge and thus is suitable for generating a high harmonic content.
  8. Antenna radiation heater according to one of Claims 1 to 7, characterized in that the electrical conductors are formed as copper foil strips (14, 15) aligned in parallel and the electrical contact with respect to the radiation coating (10) is formed as a capacitive and/or inductive coupling, the radiation coating (10) lying under or over the copper foil strips (14, 15) or these being embedded in the radiation coating (10).
  9. Antenna radiation heater according to one of Claims 1 to 8, characterized in that the number of surface antenna elements (3) are arranged within mutual reach, electrically connected in parallel and excitable by means of a harmonic generator.
  10. Antenna radiation heater according to one of Claims 1 to 9, characterized in that all surface antenna elements (3) have an identical right-angled surface and are connected in parallel in a symmetrical arrangement with short lengths of supply lines.
EP01957819A 2000-07-29 2001-06-01 Antenna radiation heater for heating a material by using resonance Expired - Lifetime EP1305554B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10037027 2000-07-29
DE10037027A DE10037027A1 (en) 2000-07-29 2000-07-29 Antenna radiation heating for heating a material by means of resonance
PCT/EP2001/006239 WO2002010650A1 (en) 2000-07-29 2001-06-01 Antenna radiation heater for heating a material by using resonance

Publications (2)

Publication Number Publication Date
EP1305554A1 EP1305554A1 (en) 2003-05-02
EP1305554B1 true EP1305554B1 (en) 2005-08-31

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP01957819A Expired - Lifetime EP1305554B1 (en) 2000-07-29 2001-06-01 Antenna radiation heater for heating a material by using resonance

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US (1) US6689994B2 (en)
EP (1) EP1305554B1 (en)
JP (1) JP2004505425A (en)
CN (1) CN1185444C (en)
AT (1) ATE303563T1 (en)
AU (1) AU2001279640A1 (en)
CA (1) CA2412105A1 (en)
DE (2) DE10037027A1 (en)
EA (1) EA004126B1 (en)
HK (1) HK1056766A1 (en)
WO (1) WO2002010650A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7783361B2 (en) * 2004-09-03 2010-08-24 Ct Investments Ltd. Radiant therapeutic heater
TWI396817B (en) * 2007-09-20 2013-05-21 Asustek Comp Inc Air conditioner
US9590296B2 (en) * 2015-05-28 2017-03-07 Nxp B. V. Antenna structure and method for assembling an RFID device
CN112611012A (en) * 2020-12-24 2021-04-06 李红霞 Frequency resonance type heat supply device and method

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1089904A (en) * 1978-02-03 1980-11-18 Joseph M. Bender Radiant therapeutic heater
DD208029A1 (en) * 1982-05-28 1984-03-21 Halle Wohnungsbau RADIATION SURFACE FOR THE PRODUCTION OF ELECTROMAGNETIC WAVES AND METHOD FOR THE PRODUCTION THEREOF
FR2582387A1 (en) * 1984-12-17 1986-11-28 Leroy Claude Electrical, radiating, heating paint for heating all premises, for deicing trunkroads, etc.
CA1262374A (en) * 1985-06-24 1989-10-17 Ryuji Igarashi High-frequency heating apparatus having a rotating waveguide
US4931625A (en) * 1988-08-17 1990-06-05 Marlinski Edward J Device for shielding electromagnetic radiation
DE19849432A1 (en) * 1998-10-27 2000-06-15 Molekulare Energietechnik Ag V Heating arrangement

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HK1056766A1 (en) 2004-02-27
JP2004505425A (en) 2004-02-19
US6689994B2 (en) 2004-02-10
ATE303563T1 (en) 2005-09-15
CN1185444C (en) 2005-01-19
US20030155348A1 (en) 2003-08-21
WO2002010650A1 (en) 2002-02-07
CN1444714A (en) 2003-09-24
DE10037027A1 (en) 2002-02-21
DE50107305D1 (en) 2005-10-06
EA200300200A1 (en) 2003-06-26
AU2001279640A1 (en) 2002-02-13
CA2412105A1 (en) 2002-12-12
EA004126B1 (en) 2003-12-25
EP1305554A1 (en) 2003-05-02

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