EP0446684B1 - Motor vehicle window pane in the form of a double glazing unit with antenna elements - Google Patents

Motor vehicle window pane in the form of a double glazing unit with antenna elements Download PDF

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Publication number
EP0446684B1
EP0446684B1 EP91102521A EP91102521A EP0446684B1 EP 0446684 B1 EP0446684 B1 EP 0446684B1 EP 91102521 A EP91102521 A EP 91102521A EP 91102521 A EP91102521 A EP 91102521A EP 0446684 B1 EP0446684 B1 EP 0446684B1
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EP
European Patent Office
Prior art keywords
motor vehicle
aerial
glass
glass according
disposed
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.)
Expired - Lifetime
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EP91102521A
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German (de)
French (fr)
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EP0446684A1 (en
Inventor
Peter Dr. Dipl.-Phys. Paulus
Hans-Jürgen Niklewski
Jörg Dipl.-Ing. Braun
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Flachglas Wernberg GmbH
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Flachglas Wernberg GmbH
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Publication date
Priority claimed from DE19904019268 external-priority patent/DE4019268A1/en
Priority claimed from DE19904036937 external-priority patent/DE4036937A1/en
Application filed by Flachglas Wernberg GmbH filed Critical Flachglas Wernberg GmbH
Publication of EP0446684A1 publication Critical patent/EP0446684A1/en
Application granted granted Critical
Publication of EP0446684B1 publication Critical patent/EP0446684B1/en
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/12Supports; Mounting means
    • H01Q1/1271Supports; Mounting means for mounting on windscreens

Definitions

  • the invention relates to a motor vehicle pane in the form of a double-pane insulating glass unit with an inner pane, an outer pane and an insulating space defined by edge spacers and filled with a gaseous medium for thermal insulation and / or sound insulation.
  • the gaseous medium consists, for example, of gas mixtures or air.
  • the edge spacers generally made of plastic, are mostly covered on the outside by a sealing adhesive. The distance between the isolation rooms is in the range of 2.5 mm and more.
  • Outer pane denotes the pane which, when the motor vehicle pane is installed, faces the outside world.
  • Inner pane refers to the pane which, when installed, points towards the vehicle interior.
  • Such motor vehicle windows are mainly designed for thermal insulation, but also bring about sound insulation.
  • single-pane motor vehicle windows in the form of such double-pane insulating glass units are being used to an increasing extent, but so far mainly as side windows in bus vehicles.
  • single-pane motor vehicle windows also in the form of single-pane safety glass or laminated safety glass, which are equipped with antenna elements.
  • antenna elements for receiving amplitude-modulated electromagnetic waves which are referred to as AM antenna elements
  • antenna elements for receiving frequency-modulated electromagnetic waves which are referred to as FM antenna elements.
  • Antenna elements also within the scope of the invention, can be designed and arranged in relation to the distance from the edge and the distance from one another in accordance with further antenna-technical considerations.
  • the invention has for its object to provide such a motor vehicle window in the form of a double-pane insulating glass unit - which should at the same time have at least one heating field.
  • the subject of the invention is a motor vehicle pane in the form of a double pane insulating glass unit with an inner pane, outer pane and an insulating space defined via edge-side spacers and filled with a gaseous medium, with at least one antenna element in the form of an AM- on at least one surface of the inner pane.
  • Antenna element arranged and the surface of the outer pane on the side of the insulating room has at least one heating field which can also be used as an antenna element.
  • the heating field can be constructed from conductors printed on the surface of the outer pane on the side of the insulation space. However, the heating field can also be applied in the form of an electrically conductive surface field coating.
  • the heating field can be used as an FM antenna element.
  • Area field coating refers to a flat, for example trapezoidal, coating.
  • work is carried out with elongated trapezoidal fields or strips which extend over the width of a motor vehicle window according to the invention and can be arranged one above the other.
  • it is known to equip units, which consist of two glass panes arranged with a space between them, with antenna elements (GB 21 30 018).
  • the antenna elements are all arranged on the insulation-room-side surface of the outer pane or the inner pane of the unit. These units are not automotive windows.
  • the design described serves to protectively encapsulate the antenna elements.
  • two-pane insulating glass units are known in which one pane or both panes have a conductive coating on their surface on the insulating room side (US Pat. No. 2,497,507), but these are not antenna elements and the coatings are also not readily usable as antenna elements if the usual requirements are placed on the reception quality.
  • the invention preference is given to working with at least one AM antenna element which is arranged on the surface of the inner pane on the inside of the vehicle.
  • a heating field which is arranged in the manner described, can be used as an antenna element, with a good reception quality.
  • this antenna element is an FM antenna element, which results in a surprisingly good reception quality for frequency-modulated electromagnetic waves, which is better than the reception that can usually be achieved via heating fields on motor vehicle windows for frequency-modulated electromagnetic waves.
  • the electrical energy received can be decoupled in a known manner.
  • the antenna elements can be brought close to the edge of the motor vehicle window without the inevitable electrical conductivity of the spacer material or the sealing adhesive having a disruptive effect.
  • the relatively large width of the spacing gap does not have a disruptive effect either.
  • the AM antenna element on the surface of the inner pane on the vehicle.
  • a combined AM / FM antenna element preferably in an L-shape, can be arranged on the vehicle-side surface of the inner pane. This can be done in different ways. If in the following of an L-shaped antenna element is spoken, it can basically be used as a combined AM / FM antenna element. However, it can also be used only as an FM antenna element or AM antenna element. Where there is talk of a combined AM / FM antenna element, this usually has an L shape.
  • the invention also teaches arranging a combined AM / FM antenna element and, in addition, at least one AM antenna element on the vehicle-side surface of the inner pane.
  • the AM / FM antenna element can be constructed from an upper L-leg in the upper region of the inner pane and an approximately central L-web which runs vertically in the installed state, and the AM antenna element can be above the AM / FM antenna element extend the entire width of the inner pane.
  • the AM / FM antenna element can be optimized as described from an upper L-leg in the upper area of the inner pane and an approximately central L-shaped web that runs vertically when installed, but otherwise the AM antenna element can be divided into two sub-elements. which extend below the upper L-leg and to the side of the L-bridge.
  • the heating field or the heating fields is improved in their antenna effect in all these cases.
  • this antenna can be used for antenna-related diversity purposes.
  • the AM antenna element is also designed as a heating field and in which this heating field and the heating field arranged on the outer pane are independent with regard to their heating function are switchable from each other. It is also within the scope of the invention to provide the inner pane with a heating field on one of its surfaces.
  • the measures described last allow the outer pane and / or the inner pane to be dehumidified at short notice. Dehumidifying also means defrosting, especially with regard to the outer pane.
  • the heating fields can always be those with surface coating as well as those with printed conductors.
  • the motor vehicle pane 1 shown in FIGS. 1 to 6 is designed as a double pane insulating glass unit.
  • the inner pane 2, the outer pane 3 and an insulating space 5 defined by means of spacers 4a with sealing adhesive 4b can be seen.
  • the insulating space 5 is filled with a gaseous medium, including gas mixtures and air.
  • the surface of the outer pane 3 on the insulating space side has two heating fields 7 in the form of printed conductors or in the form an electrically conductive surface field coating. At least one of these can be used simultaneously as an FM antenna element. They have the shape of two elongated strips.
  • the antenna element of the outer pane 3, which is at the same time designed as a heating field 7, can be insulated with the AM antenna elements 6 and / or the arranged on the vehicle inside of the inner pane 2 Combine antenna elements 8 arranged on the inner pane 2, which are shown in FIGS. 4 to 6.
  • the L-legs were designated 8 ', the vertically running L-bars with 8 ⁇ .
  • the motor vehicle pane shown in FIGS. 7 to 12 connects to FIGS. 1 and 2 and is likewise designed as a double pane insulating glass unit. It has an inner pane 2, an outer pane 3 and an insulating space 5 defined by means of spacers 4a with sealing adhesive 4b on the edge.
  • the insulating space 5 is filled with a gaseous medium, including gas mixtures and air.
  • the surface of the outer pane 3 on the insulating room side has at least one heating field 7. At least one of the heating fields 7 could be used as an FM antenna element.
  • an FM antenna element 9 is arranged on the surface of the inner pane 2 on the vehicle interior.
  • a heating field 10 is also provided.
  • the arrangement is further made so that the transverse to the direction of the heating conductor 11 antenna conductors 12 are each connected to equipotential points P of the heating conductor 11, which on the heating conductors 11, z. B. were determined by measurement.
  • the antenna conductors 12 are set up to receive horizontally and vertically polarized radio waves. According to FIG. 8, there are no galvanic connections between the antenna conductors 12 outside of the heating field 10 Connections arranged.
  • the reference numerals of FIGS. 7 and 8 are found, as far as they match.
  • the FM antenna is designed as a single L antenna 13, the horizontal L leg 14 of which is above and below that in the Area of the upper edge of the disk arranged AM antenna 6 is arranged.
  • FIG. 11 shows how a heating field 10 can be arranged on the inner pane 2, which can also be used as an FM antenna. It can be located on the surface on the side of the insulation room or also on the surface on the inside of the vehicle. In FIG. 11 it may be located on the surface of the inner pane 2 on the side of the insulation space.
  • the antenna configuration shown in FIG. 12 is also located on the vehicle-side surface of the inner pane 2. It can be seen that the FM antenna is designed as an L-antenna 13, which runs with its horizontal L-leg 14 above the AM antenna 6 arranged in the region of the upper edge of the pane and whose vertical L-leg is doubled. Antenna configurations as described and illustrated above are known per se. According to the invention, they are used in a special way in a motor vehicle window according to FIGS. 1 to 6.

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  • Details Of Aerials (AREA)

Description

Die Erfindung betrifft eine Kraftfahrzeugscheibe in Form einer Zweischeiben-Isolierglaseinheit mit Innenscheibe, Außenscheibe und über randseitige Abstandshalter definiertem sowie mit einem gasförmigen Medium gefülltem Isolierraum für die Wärmedämmung und/oder Schalldämmung. Das gasförmige Medium besteht beispielsweise aus Gasmischungen oder Luft. Die randseitigen, im allgemeinen aus Kunststoff bestehenden Abstandshalter sind nach außen hin zumeist von einem Versiegelungskleber abgedeckt. Die Abstandsweite des Isolierraumes liegt im Bereich von 2,5 mm und mehr. Außenscheibe bezeichnet diejenige Scheibe, die im eingebauten Zustand der Kraftfahfzeugscheibe zur Außenwelt weist. Innenscheibe bezeichnet diejenige Scheibe, die im eingebauten Zustand zum Fahrzeuginnenraum hin weist. Derartige Kraftfahrzeugscheiben sind hauptsächlich für die Wärmedämmung ausgelegt, bewirken aber auch eine Schalldämmung. - Kraftfahrzeugscheiben in Form von solchen Zweischeiben-Isolierglaseinheiten werden in zunehmenden Maße eingesetzt, bisher allerdings hauptsächlich als Seitenscheiben bei Omnibusfahrzeugen. Andererseits kennt man Einscheiben-Kraftfahrzeugscheiben, auch in Form von Einscheiben-Sicherheitsglas oder Verbund-Sicherheitsglas, die mit Antennenelementen ausgerüstet sind. Dabei unterscheidet man zwischen Antennenelementen für den Empfang amplitudenmodulierter elektromagnetischer Wellen, die als AM-Antennenelemente bezeichnet werden, und Antennenelementen für den Empfang frequenzmodulierter elektromagnetischer Wellen, die als FM-Antennenelemente bezeichnet werden. Nur beispielsweise sei dazu verwiesen auf die DE-OS 24 41 609. Es versteht sich, daß solcheThe invention relates to a motor vehicle pane in the form of a double-pane insulating glass unit with an inner pane, an outer pane and an insulating space defined by edge spacers and filled with a gaseous medium for thermal insulation and / or sound insulation. The gaseous medium consists, for example, of gas mixtures or air. The edge spacers, generally made of plastic, are mostly covered on the outside by a sealing adhesive. The distance between the isolation rooms is in the range of 2.5 mm and more. Outer pane denotes the pane which, when the motor vehicle pane is installed, faces the outside world. Inner pane refers to the pane which, when installed, points towards the vehicle interior. Such motor vehicle windows are mainly designed for thermal insulation, but also bring about sound insulation. - Motor vehicle windows in the form of such double-pane insulating glass units are being used to an increasing extent, but so far mainly as side windows in bus vehicles. On the other hand, one knows single-pane motor vehicle windows, also in the form of single-pane safety glass or laminated safety glass, which are equipped with antenna elements. A distinction is made between antenna elements for receiving amplitude-modulated electromagnetic waves, which are referred to as AM antenna elements, and antenna elements for receiving frequency-modulated electromagnetic waves, which are referred to as FM antenna elements. For example, reference is made to DE-OS 24 41 609. It is understood that such

Antennenelemente, auch im Rahmen der Erfindung, in bezug auf den Abstand vom Rand und den Abstand voneinander nach Maßgabe weiterer antennentechnischer Erwägungen gestaltet und angeordnet werden können.Antenna elements, also within the scope of the invention, can be designed and arranged in relation to the distance from the edge and the distance from one another in accordance with further antenna-technical considerations.

Andererseits sind aus den Literaturstellen FR-A 2 601 194, EP-A 0 346 591 und DE-A 3 910 031 Einscheiben-Kraftfahrzeugscheiben, nämlich Verbund-Sicherheits-Glasscheiben, die mit Heizfeldern ausgerüstet sind, bekannt. Bei den Heizfeldern kann es sich auch um metallische Beschichtungen handeln. Es ist insofern auch bekannt, solche Heizfelder auch als Antennen oder Antennenelemente zu schalten und/oder zusätzliche Antennen einzurichten. Stets handelt es sich dabei jedoch um laminierte Kraftfahrzeugscheiben mit schlechter Wärme- und Schallisolierung. Auch sind die Empfangsleistungen verbesserungswürdig. Aus der Literaturstelle DE-A 2 615 356 ist eine Zweischeiben-Isolierglaseinheit für Gebäude bekannt, die mit die Raumheizung unterstützenden Heizfeldern ausgestattet ist. Elektromagnetische Wellen sind nicht empfangbar. Raumheizzwecken dienende Heizfelder sind für Kraftfahrzeuge aufgrund der hohen Leistungsaufnahme nicht einsetzbar.On the other hand, from the literature FR-A 2 601 194, EP-A 0 346 591 and DE-A 3 910 031 single-pane motor vehicle panes, namely laminated safety glass panes which are equipped with heating fields, are known. The heating fields can also be metallic coatings. In this respect, it is also known to switch such heating fields as antennas or antenna elements and / or to set up additional antennas. However, these are always laminated motor vehicle windows with poor heat and sound insulation. The reception services are also in need of improvement. From the document DE-A 2 615 356 a double-pane insulating glass unit for buildings is known, which is equipped with heating fields that support space heating. Electromagnetic waves cannot be received. Heating fields serving space heating purposes cannot be used for motor vehicles due to the high power consumption.

Es fehlt eine Lehre zum technischen Handeln, die es erlaubt, Kraftfahrzeugscheiben in Form von Zweischeiben-Isolierglaseinheiten des eingangs beschriebenen Aufbaus mit Antennenelementen in Form von AM-Antennenelementen und FM-Antennenelementen auf einfache Weise so auszurüsten, daß die elektromagnetischen Wellen mit hoher Leistung aufgenommen und ohne störenden Verlust einem zugeordneten Empfänger im Inneren des Kraftfahrzeuges zugeführt werden können. Der Erfindung liegt die Aufgabe zugrunde, eine solche Kraftfahrzeugscheibe in Form einer Zweischeiben-Isolierglaseinheit zu schaffen, - die gleichzeitig zumindest ein Heizfeld aufweisen soll.There is a lack of a teaching on technical action that allows motor vehicle panes in the form of double-pane insulating glass units of the construction described at the outset to be equipped in a simple manner with antenna elements in the form of AM antenna elements and FM antenna elements in such a way that the electromagnetic waves are absorbed with high power and without an annoying loss to an assigned recipient in Can be supplied inside the motor vehicle. The invention has for its object to provide such a motor vehicle window in the form of a double-pane insulating glass unit - which should at the same time have at least one heating field.

Zur Lösung dieser Aufgabe ist Gegenstand der Erfindung eine Kraftfahrzeugscheibe in Form einer Zweischeiben-Isolierglaseinheit mit Innenscheibe, Außenscheibe und über randseitige Abstandshalter definiertem sowie mit einem gasförmigen Medium gefülltem Isolierraum, wobei auf zumindest einer der Oberflächen der Innenscheibe zumindest ein Antennenelement in der Ausbildung als AM-Antennenelement angeordnet ist und wobei die isolierraumseitige Oberfläche der Außenscheibe zumindest ein Heizfeld aufweist, welches gleichzeitig als Antennenelement einsetzbar ist. Das Heizfeld kann aus auf die isolierraumseitige Oberfläche der Außenscheibe aufgedruckten Leitern aufgebaut sein. Das Heizfeld kann aber auch in Form einer elektrisch leitenden Flächenfeldbeschichtung aufgebracht sein. Nach bevorzugter Ausführungsform der Erfindung ist das Heizfeld als FM-Antennenelement einsetzbar. Flächenfeldbeschichtung bezeichnet eine flächige, zum Beispiel trapezförmige, Beschichtung. Insbesondere wird mit langgestreckten trapezförmigen Feldern oder Streifen gearbeitet, die sich über die Breite einer erfindungsgemäßen Kraftfahrzeugscheibe erstrecken und übereinander angeordnet sein können. - Grundsätzlich ist es bekannt, Aggregate, die aus zwei mit Abstandszwischenraum voneinander angeordneten Glasscheiben bestehen, mit Antennenelementen auszurüsten (GB 21 30 018). Hier sind die Antennenelemente sämtlich auf der isolierraumseitigen Oberfläche der Außenscheibe bzw. der Innenscheibe des Aggregates angeordnet. Diese Aggregate sind keine Kraftfahrzeugscheiben. Die beschriebene Gestaltung dient dazu, die Antennenelemente schützend zu kapseln. Im übrigen kennt man für andere Zwecke, so zur Beheizung, auch Zweischeiben-Isolierglaseinheiten, bei denen eine Scheibe oder beide Scheiben isolierraumseitig auf ihrer Oberfläche eine leitende Beschichtung aufweisen (US 24 97 507), jedoch handelt es sich hier nicht um Antennenelemente und die Beschichtungen sind ohne weiteres auch nicht als Antennenelemente einsetzbar, wenn die üblichen Anforderungen an die Empfangsqualität gestellt werden.To achieve this object, the subject of the invention is a motor vehicle pane in the form of a double pane insulating glass unit with an inner pane, outer pane and an insulating space defined via edge-side spacers and filled with a gaseous medium, with at least one antenna element in the form of an AM- on at least one surface of the inner pane. Antenna element arranged and the surface of the outer pane on the side of the insulating room has at least one heating field which can also be used as an antenna element. The heating field can be constructed from conductors printed on the surface of the outer pane on the side of the insulation space. However, the heating field can also be applied in the form of an electrically conductive surface field coating. According to a preferred embodiment of the invention, the heating field can be used as an FM antenna element. Area field coating refers to a flat, for example trapezoidal, coating. In particular, work is carried out with elongated trapezoidal fields or strips which extend over the width of a motor vehicle window according to the invention and can be arranged one above the other. - Basically, it is known to equip units, which consist of two glass panes arranged with a space between them, with antenna elements (GB 21 30 018). Here, the antenna elements are all arranged on the insulation-room-side surface of the outer pane or the inner pane of the unit. These units are not automotive windows. The design described serves to protectively encapsulate the antenna elements. Moreover, for other purposes, such as for heating, two-pane insulating glass units are known in which one pane or both panes have a conductive coating on their surface on the insulating room side (US Pat. No. 2,497,507), but these are not antenna elements and the coatings are also not readily usable as antenna elements if the usual requirements are placed on the reception quality.

Erfindungsgemäß wird bevorzugt mit zumindest einem AM-Antennenelement gearbeitet, welches auf der fahrzeuginnenseitigen Oberfläche der Innenscheibe angeordnet ist. Überraschenderweise kann gleichzeitig ein Heizfeld, welches in der beschriebenen Weise angeordnet ist, als Antennenelement eingesetzt werden, und zwar mit guter Empfangsqualität. Von besonderer Bedeutung ist die Ausführungsform,bei der dieses Antennenelement ein FM-Antennenelement ist, wobei sich eine überraschend gute Empfangsqualität für frequenzmodulierte elektromagnetische Wellen ergibt, die besser ist, als der Empfang, der üblicherweise über Heizfelder auf Kraftfahrzeugscheiben für frequenzmodulierte elektromagnetische Wellen erreichbar ist. Das Auskoppeln der empfangenen elektrischen Energie kann auf bekannte Weise erfolgen. Von besonderem Vorteil ist dabei, daß die Antennenelemente bis nahe an den Rand der Kraftfahrzeugscheibe herangeführt werden können, ohne daß sich die unvermeidbare elektrische Leitfähigkeit des Abstandshaltermaterials bzw. des Versiegelungsklebers störend auswirken. Überraschenderweise wirkt sich auch die verhältnismäßig große Weite des Abstandsspaltes nicht störend aus.According to the invention, preference is given to working with at least one AM antenna element which is arranged on the surface of the inner pane on the inside of the vehicle. Surprisingly, at the same time, a heating field, which is arranged in the manner described, can be used as an antenna element, with a good reception quality. Of particular importance is the embodiment in which this antenna element is an FM antenna element, which results in a surprisingly good reception quality for frequency-modulated electromagnetic waves, which is better than the reception that can usually be achieved via heating fields on motor vehicle windows for frequency-modulated electromagnetic waves. The electrical energy received can be decoupled in a known manner. It is particularly advantageous that the antenna elements can be brought close to the edge of the motor vehicle window without the inevitable electrical conductivity of the spacer material or the sealing adhesive having a disruptive effect. Surprisingly, the relatively large width of the spacing gap does not have a disruptive effect either.

Im einzelnen bestehen im Rahmen der Erfindung mehrere Möglichkeiten der weiteren Ausbildung und Gestaltung. Es empfiehlt sich, auf der fahrzeuginnenseitigen Oberfläche der Innenscheibe das AM-Antennenelement anzuordnen. So kann auf der fahrzeuginnenseitigen Oberfläche der Innenscheibe ein kombiniertes AM/FM-Antennenelement, vorzugsweise in L-Form, angeordnet sein. Das kann im einzelnen auf verschiedene Weise geschehen. Wenn im folgenden von einem L-förmigen Antennenelement gesprochen wird, so kann dieses grundsätzlich als kombiniertes AM/FM-Antennenelement eingesetzt werden. Es kann jedoch auch lediglich als FM-Antennenelement oder AM-Antennenelement eingesetzt sein. Wo von einem kombinierten AM/FM-Antennenelement die Rede ist, hat dieses zumeist L-Form. Auch lehrt die Erfindung, auf der fahrzeuginnenseitigen Oberfläche der Innenscheibe ein kombiniertes AM/FM-Antennenelement und außerdem zumindest ein AM-Antennenelement anzuordnen. Dabei kann das AM/FM-Antennenelement aus einem oberen L-Schenkel im oberen Bereich der Innenscheibe und einem etwa mittigen, im eingebauten Zustand vertikal verlaufenden L-Steg aufgebaut sein und kann dabei das AM-Antennenelement sich oberhalb des AM/FM-Antennenelementes über die gesamte Breite der Innenscheibe erstrecken. Optimierend kann das AM/FM-Antennenelement wie beschrieben aus einem oberen L-Schenkel im oberen Bereich der Innenscheibe und einem etwa mittigen, im eingebauten Zustand vertikal verlaufenden L-Steg aufgebaut sein, im übrigen jedoch das AM-Antennenelement in zwei Teilelemente aufgelöst sein, die sich unterhalb des oberen L-Schenkels und seitlich des L-Steges erstrecken. Überraschenderweise wird in all diesen Fällen das Heizfeld bzw. die Heizfelder in ihrer Antennenwirkung verbessert. Somit kann diese Antenne, neben den Antennenelementen in L-Form, für antennentechnische Diversity-Zwecke eingesetzt werden.There are several options for further training and design within the scope of the invention. It is advisable to arrange the AM antenna element on the surface of the inner pane on the vehicle. For example, a combined AM / FM antenna element, preferably in an L-shape, can be arranged on the vehicle-side surface of the inner pane. This can be done in different ways. If in the following of an L-shaped antenna element is spoken, it can basically be used as a combined AM / FM antenna element. However, it can also be used only as an FM antenna element or AM antenna element. Where there is talk of a combined AM / FM antenna element, this usually has an L shape. The invention also teaches arranging a combined AM / FM antenna element and, in addition, at least one AM antenna element on the vehicle-side surface of the inner pane. The AM / FM antenna element can be constructed from an upper L-leg in the upper region of the inner pane and an approximately central L-web which runs vertically in the installed state, and the AM antenna element can be above the AM / FM antenna element extend the entire width of the inner pane. As described, the AM / FM antenna element can be optimized as described from an upper L-leg in the upper area of the inner pane and an approximately central L-shaped web that runs vertically when installed, but otherwise the AM antenna element can be divided into two sub-elements. which extend below the upper L-leg and to the side of the L-bridge. Surprisingly, the heating field or the heating fields is improved in their antenna effect in all these cases. Thus, in addition to the antenna elements in L-shape, this antenna can be used for antenna-related diversity purposes.

Im Rahmen der Erfindung liegt eine Ausführungsform, bei der das AM-Antennenelement ebenfalls als Heizfeld ausgebildet ist und bei der dieses Heizfeld sowie das auf der Außenscheibe angeordnete Heizfeld in bezug auf ihre Heizfunktion unabhängig voneinander schaltbar sind. Im Rahmen der Erfindung liegt es fernerhin, die Innenscheibe auf einer ihrer Oberflächen zusätzlich mit einem Heizfeld zu versehen. Durch die zuletzt beschriebenen Maßnahmen kann kurzfristig ein Entfeuchten der Außenscheibe und/oder der Innenscheibe durchgeführt werden. Entfeuchten meint, insbesondere in bezug auf die Außenscheibe, auch ein Abtauen. Es kann sich bei den Heizfeldern stets um solche mit Flächenbeschichtung als auch um solche mit aufgedruckten Leitern handeln.Within the scope of the invention is an embodiment in which the AM antenna element is also designed as a heating field and in which this heating field and the heating field arranged on the outer pane are independent with regard to their heating function are switchable from each other. It is also within the scope of the invention to provide the inner pane with a heating field on one of its surfaces. The measures described last allow the outer pane and / or the inner pane to be dehumidified at short notice. Dehumidifying also means defrosting, especially with regard to the outer pane. The heating fields can always be those with surface coating as well as those with printed conductors.

Im folgenden werden die beschriebenen und weiteren Merkmale der Erfindung anhand einer lediglich ein Ausführungsbeispiel darstellenden Zeichnung ausführlicher erläutert. Es zeigen

Fig. 1
einen Vertikalschnitt durch eine erfindungsgemäße Kraftfahrzeugscheibe,
Fig. 2
eine Ansicht der Außenscheibe der in Fig. 1 dargestellten Kraftfahrzeugscheibe,
Fig. 3
eine Ansicht der Innenscheibe der in Fig. 1 dargestellten Kraftfahrzeugscheibe, die
Fig. 4 bis 6
entsprechend der Fig. 3 andere Ausführungsformen der Innenscheibe,
Fig. 7
eine Ansicht der Innenscheibe entsprechend dem Gegenstand der Fig. 1 mit Antennen auf der fahrzeuginnenraumseitigen Oberfläche,
Fig. 8
eine andere Ausführungsform des Gegenstandes der Fig. 7,
Fig. 9
eine weitere Ausführungsform der Fig. 7,
Fig. 10
eine nochmals andere Ausführungsform des Gegenstandes der Fig. 7,
Fig. 11
die Ansicht der isolierraumseitigen Oberfläche der Innenscheibe mit Heizfeldern und
Fig. 12
die fahrzeuginnenseitige Oberfläche der Innenscheibe nach Fig. 11 mit besonderen Antennen.
The described and further features of the invention are explained in more detail below on the basis of a drawing which represents only one exemplary embodiment. Show it
Fig. 1
a vertical section through a motor vehicle window according to the invention,
Fig. 2
2 shows a view of the outer pane of the motor vehicle pane shown in FIG. 1,
Fig. 3
a view of the inner pane of the motor vehicle pane shown in Fig. 1, the
4 to 6
3 other embodiments of the inner pane,
Fig. 7
2 shows a view of the inner pane corresponding to the subject of FIG. 1 with antennas on the surface of the vehicle interior,
Fig. 8
another embodiment of the subject of FIG. 7,
Fig. 9
7 shows another embodiment of FIG. 7,
Fig. 10
7 shows yet another embodiment of the subject of FIG. 7,
Fig. 11
the view of the insulation-side surface of the inner pane with heating fields and
Fig. 12
the vehicle interior surface of the inner pane of FIG. 11 with special antennas.

Die in den Figuren 1 bis 6 dargestellte Kraftfahrzeugscheibe 1 ist als Zweischeiben-Isolierglaseinheit ausgebildet. Dazu wird insbesondere auf die Fig. 1 verwiesen. Man erkennt die Innenscheibe 2, die Außenscheibe 3 und einen über randseitige Abstandshalter 4a mit Versiegelungskleber 4b definierten Isolierraum 5. Der Isolierraum 5 ist mit einem gasförmigen Medium, einschließlich Gasmischungen und Luft, gefüllt. Auf der fahrzeuginnenseitigen Oberfläche der Innenscheibe 2 befindet sich, wie die Fig. 3 erkennen läßt, zumindest ein Antennenelement in der Ausbildung als AM-Antennenelement 6. Im übrigen besitzt die isolierraumseitige Oberfläche der Außenscheibe 3 zwei Heizfelder 7 in Form von aufgedruckten Leitern oder in Form einer elektrisch leitenden Flächenfeldbeschichtung. Von diesen ist zumindest eines gleichzeitig als FM-Antennenelement einsetzbar. Sie besitzen die Form von zwei langgestreckten Streifen. Dazu wird auf die Fig. 2 verwiesen. Das isolierraumseitige, zugleich als Heizfeld 7 ausgebildete Antennenelement der Außenscheibe 3 läßt sich mit den auf der Fahrzeuginnenseite der Innenscheibe 2 angeordneten AM-Antennenelementen 6 und/oder den auf der Innenscheibe 2 angeordneten Antennenelementen 8 kombinieren, die in den Figuren 4 bis 6 dargestellt sind. Dabei wurden die L-Schenkel mit 8′, die vertikal verlaufenden L-Stege mit 8˝ bezeichnet.The motor vehicle pane 1 shown in FIGS. 1 to 6 is designed as a double pane insulating glass unit. For this purpose, reference is made in particular to FIG. 1. The inner pane 2, the outer pane 3 and an insulating space 5 defined by means of spacers 4a with sealing adhesive 4b can be seen. The insulating space 5 is filled with a gaseous medium, including gas mixtures and air. 3, there is at least one antenna element in the form of an AM antenna element 6. Moreover, the surface of the outer pane 3 on the insulating space side has two heating fields 7 in the form of printed conductors or in the form an electrically conductive surface field coating. At least one of these can be used simultaneously as an FM antenna element. They have the shape of two elongated strips. For this purpose, reference is made to FIG. 2. The antenna element of the outer pane 3, which is at the same time designed as a heating field 7, can be insulated with the AM antenna elements 6 and / or the arranged on the vehicle inside of the inner pane 2 Combine antenna elements 8 arranged on the inner pane 2, which are shown in FIGS. 4 to 6. The L-legs were designated 8 ', the vertically running L-bars with 8˝.

Die in den Figuren 7 bis 12 dargestellte Kraftfahrzeugscheibe schließt an die Figuren 1 und 2 an und ist ebenfalls als Zweischeiben-Isolierglaseinheit ausgebildet. Sie besitzt eine Innenscheibe 2, eine Außenscheibe 3 und einen über randseitige Abstandshalter 4a mit Versiegelungskleber 4b definierten Isolierraum 5. Der Isolierraum 5 ist mit einem gasförmigen Medium, einschließlich Gasmischungen und Luft, gefüllt. Auf der fahrzeuginnenseitigen Oberfläche der Innenscheibe 2 befindet sich, wie die Fig. 7 erkennen läßt, zumindest ein Antennenelement 6 in der Ausbildung als AM-Antennenelement. Die isolierraumseitige Oberfläche der Außenscheibe 3 besitzt zumindest ein Heizfeld 7. Zumindest eines der Heizfelder 7 könnte als FM-Antennenelement genutzt werden.The motor vehicle pane shown in FIGS. 7 to 12 connects to FIGS. 1 and 2 and is likewise designed as a double pane insulating glass unit. It has an inner pane 2, an outer pane 3 and an insulating space 5 defined by means of spacers 4a with sealing adhesive 4b on the edge. The insulating space 5 is filled with a gaseous medium, including gas mixtures and air. 7, there is at least one antenna element 6 in the form of an AM antenna element, as can be seen in FIG. 7. The surface of the outer pane 3 on the insulating room side has at least one heating field 7. At least one of the heating fields 7 could be used as an FM antenna element.

Bei der Ausführungsform nach den Fig. 7 und 8 ist auf der fahrzeuginnenraumseitigen Oberfläche der Innenscheibe 2 ein FM-Antennenelement 9 angeordnet. Außerdem ist ein Heizfeld 10 vorgesehen. Die Anordnung ist fernerhin so getroffen, daß die quer zur Richtung der Heizleiter 11 verlaufenden Antennenleiter 12 jeweils mit Äquipotentialpunkten P der Heizleiter 11 verbunden sind, die auf den Heizleitern 11, z. B. durch Vermessung, ermittelt wurden. Die Antennenleiter 12 sind zum Empfang horizontal und vertikal polarisierter Radiowellen eingerichtet. Zwischen den Antennenleitern 12 sind nach Fig. 8 außerhalb des Heizfeldes 10 keine galvanischen Verbindungen angeordnet. Bei der Ausführungsform nach den Fig. 9 und 10 findet man, soweit übereinstimmend, die Bezugszeichen der Fig. 7 und 8. Die FM-Antenne ist als einzelne L-Antenne 13 ausgeführt, deren horizontaler L-Schenkel 14 oberhalb bzw. unterhalb der im Bereich des oberen Randes der Scheibe angeordneten AM-Antenne 6 angeordnet ist.In the embodiment according to FIGS. 7 and 8, an FM antenna element 9 is arranged on the surface of the inner pane 2 on the vehicle interior. A heating field 10 is also provided. The arrangement is further made so that the transverse to the direction of the heating conductor 11 antenna conductors 12 are each connected to equipotential points P of the heating conductor 11, which on the heating conductors 11, z. B. were determined by measurement. The antenna conductors 12 are set up to receive horizontally and vertically polarized radio waves. According to FIG. 8, there are no galvanic connections between the antenna conductors 12 outside of the heating field 10 Connections arranged. In the embodiment according to FIGS. 9 and 10, the reference numerals of FIGS. 7 and 8 are found, as far as they match. The FM antenna is designed as a single L antenna 13, the horizontal L leg 14 of which is above and below that in the Area of the upper edge of the disk arranged AM antenna 6 is arranged.

Die Fig. 11 zeigt, wie auf der Innenscheibe 2 ein Heizfeld 10 angeordnet sein kann, welches zugleich als FM-Antenne einsetzbar ist. Es kann sich auf der isolierraumseitigen Oberfläche befinden oder auch auf der fahrzeuginnenraumseitigen Oberfläche. In der Fig. 11 mag es sich auf der isolierraumseitigen Oberfläche der Innenscheibe 2 befinden. Auf der fahrzeuginnenseitigen Oberfläche der Innenscheibe 2 befindet sich auch die in Fig. 12 dargestellte Antennenkonfiguration. Man erkennt, daß die FM-Antenne als L-Antenne 13 ausgeführt ist, die mit ihrem horizontalen L-Schenkel 14 oberhalb der im Bereich des oberen Randes der Scheibe angeordneten AM-Antenne 6 verläuft und deren vertikaler L-Schenkel verdoppelt ist. - Antennenkonfigurationen, wie sie vorstehend beschrieben und dargestellt sind, sind an sich bekannt. Erfindungsgemäß werden sie bei einer Kraftfahrzeugscheibe nach den Figuren 1 bis 6 in besonderer Weise eingesetzt.11 shows how a heating field 10 can be arranged on the inner pane 2, which can also be used as an FM antenna. It can be located on the surface on the side of the insulation room or also on the surface on the inside of the vehicle. In FIG. 11 it may be located on the surface of the inner pane 2 on the side of the insulation space. The antenna configuration shown in FIG. 12 is also located on the vehicle-side surface of the inner pane 2. It can be seen that the FM antenna is designed as an L-antenna 13, which runs with its horizontal L-leg 14 above the AM antenna 6 arranged in the region of the upper edge of the pane and whose vertical L-leg is doubled. Antenna configurations as described and illustrated above are known per se. According to the invention, they are used in a special way in a motor vehicle window according to FIGS. 1 to 6.

Claims (16)

  1. A motor vehicle glass in the form of a double glass, insulating glass unit having an inner glass (2), an outer glass (3) and an insulating space (5) which is defined by distance pieces (4a, 4b) at the edges and which is filled with a gaseous medium for heat insulation and/or sound insulation, wherein at least one aerial element, constructed as an AM aerial (6), is disposed on at least one of the surfaces of the inner glass (2) and wherein the surface of the outer glass (3) on the side of the insulating space has at least one heater section (7) which can be used simultaneously as an aerial element.
  2. A motor vehicle glass according to claim 1, wherein the heater section (7) is constructed from conductors printed on the surface of the outer glass (3) on the side of the insulating space.
  3. A motor vehicle glass according to claim 1, wherein the heater section (7) is applied in the form of an electrically conducting sheet-section coating.
  4. A motor vehicle glass according to any one of claims 1 to 3, wherein the heater section (7) can be used as an FM aerial element.
  5. A motor vehicle glass according to any one of claims 1 to 4, wherein the AM aerial element (6) is disposed on the surface of the inner glass (2) on the inside of the vehicle.
  6. A motor vehicle glass according to any one of claims 1 to 4, wherein a combined AM/FM aerial element (8), which is preferably L-shaped, is disposed on the surface of the inner glass (2) on the inside of the vehicle.
  7. A motor vehicle glass according to any one of claims 1 to 6, wherein a combined AM/FM aerial element (8), and in addition at least one AM aerial element (6) which is separate therefrom, are disposed on the surface of the inner glass (2) on the inside of the vehicle.
  8. A motor vehicle glass according to claim 7, wherein the AM/FM aerial element (8) is constructed from the upper limb (8′) of an L in the upper region of the inner glass and from the approximately central limb (8˝) of an L which runs vertically in the installed state, and wherein the AM aerial element (6) extends above the AM/FM aerial element (8) over the entire width of the inner glass (2).
  9. A motor vehicle glass according to claim 7, wherein the AM/FM aerial element (8) is constructed from the upper limb (8′) of an L in the upper region of the inner glass and from the approximately central limb (8˝) of an L which runs vertically in the installed state, and wherein the AM aerial element (6) is broken down into two partial elements which extend below the limb (8′) of the L and at the sides of the vertical limb (8˝) of the L.
  10. A motor vehicle glass according to any one of claims 1 to 4, wherein the AM aerial element (6) is likewise constructed as a heater section and the two heater sections (6 and 7) are switchable independently of each other.
  11. A motor vehicle glass according to any one of claims 1 to 10, wherein the inner glass (2) additionally has at least one heater section (10) on one of its surfaces.
  12. A motor vehicle glass according to claim 11, wherein the inner glass (2) additionally has at least one AM aerial (6) and at least one FM aerial (9) on its surface facing the inside of the vehicle.
  13. A motor vehicle glass according to claim 12, wherein, when the heater section (10) is disposed on the surface on the inside of the vehicle, the aerial conductors (12) (for horizontally and vertically polarised radio waves) which run transversely to the direction of the heater conductors (11) are each connected to equipotential points (P) of the heater conductors (11) which are determined on the heater conductors (11) by measurement.
  14. A motor vehicle glass according to claim 12, wherein the FM aerial is constructed as a separate AM aerial (13), the horizontal limb (14) of the L of which is disposed above or below the AM aerial (6) disposed in the region of the upper edge of the glass.
  15. A motor vehicle glass according to either one of claims 12 or 14, wherein the heater section (10) of the inner glass (2) is disposed on the surface of the inner glass (2) on the side of the insulating space.
  16. A motor vehicle glass according to claim 15, wherein the FM aerial (13) is constructed as an L-shaped aerial, the horizontal limb (14) of the L of which runs above the AM aerial (6) disposed in the region of the upper edge of the glass and the vertical limbs of the L of which are double.
EP91102521A 1990-03-10 1991-02-21 Motor vehicle window pane in the form of a double glazing unit with antenna elements Expired - Lifetime EP0446684B1 (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
DE4007641 1990-03-10
DE4007641 1990-03-10
DE4019268 1990-06-16
DE19904019268 DE4019268A1 (en) 1990-03-10 1990-06-16 Vehicle double-glazing unit - including AM antenna element and combined heater and antenna element
DE19904036937 DE4036937A1 (en) 1990-06-16 1990-11-20 Road vehicle double glazed insulating glass
DE4036937 1990-11-20

Publications (2)

Publication Number Publication Date
EP0446684A1 EP0446684A1 (en) 1991-09-18
EP0446684B1 true EP0446684B1 (en) 1995-06-21

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Application Number Title Priority Date Filing Date
EP91102521A Expired - Lifetime EP0446684B1 (en) 1990-03-10 1991-02-21 Motor vehicle window pane in the form of a double glazing unit with antenna elements

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JP (1) JPH0595220A (en)
DE (1) DE59105751D1 (en)

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Publication number Priority date Publication date Assignee Title
GB0522784D0 (en) 2005-11-08 2005-12-14 Nel Technologies Ltd Anti-fogging device and anti-fogging viewing member
GB0605670D0 (en) * 2006-03-22 2006-05-03 Pilkington Automotive D Gmbh Improved antenna assembly
JP5738177B2 (en) * 2011-12-28 2015-06-17 日本板硝子株式会社 Glass antenna for vehicles
EP3635470A4 (en) * 2017-06-09 2021-02-24 Saint-Gobain Glass France Laminated glazing with embedded data transponder
CN108341601A (en) * 2018-02-13 2018-07-31 江苏奥蓝工程玻璃有限公司 A kind of preparation method of heat-insulating laminated glass

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DE2441609A1 (en) * 1973-10-24 1975-05-07 Toyota Motor Co Ltd ANTENNA ARRANGEMENT FOR MOTOR VEHICLES
DE3334943A1 (en) * 1982-09-27 1984-03-29 Rogers Corp., 06263 Rogers, Conn. MICROWAVE STRIP LADDER AERIAL

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US2497507A (en) * 1942-10-05 1950-02-14 Libbey Owens Ford Glass Co Electrically conducting multiple panel structure
DE2615356A1 (en) * 1976-04-08 1977-10-27 Terhaar Bernhard Dr Double glazing contg. insulating gas - and an electric heater with a height restricted to that of human beings
GB2193846B (en) * 1986-07-04 1990-04-18 Central Glass Co Ltd Vehicle window glass antenna using transparent conductive film
DE3910031A1 (en) * 1988-03-31 1989-10-19 Nippon Sheet Glass Co Ltd Vehicle window antenna
DE3820229C1 (en) * 1988-06-14 1989-11-30 Heinz Prof. Dr.-Ing. 8033 Planegg De Lindenmeier
DE3914424A1 (en) * 1989-05-01 1990-12-13 Lindenmeier Heinz ANTENNA WITH VERTICAL STRUCTURE FOR TRAINING AN EXTENDED AREA CAPACITY

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DE2441609A1 (en) * 1973-10-24 1975-05-07 Toyota Motor Co Ltd ANTENNA ARRANGEMENT FOR MOTOR VEHICLES
DE3334943A1 (en) * 1982-09-27 1984-03-29 Rogers Corp., 06263 Rogers, Conn. MICROWAVE STRIP LADDER AERIAL
GB2130018A (en) * 1982-09-27 1984-05-23 Rogers Corp Antenna

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Publication number Publication date
EP0446684A1 (en) 1991-09-18
DE59105751D1 (en) 1995-07-27
JPH0595220A (en) 1993-04-16

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