EP3900106B1 - Vitre pour un véhicule - Google Patents

Vitre pour un véhicule Download PDF

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Publication number
EP3900106B1
EP3900106B1 EP19813360.5A EP19813360A EP3900106B1 EP 3900106 B1 EP3900106 B1 EP 3900106B1 EP 19813360 A EP19813360 A EP 19813360A EP 3900106 B1 EP3900106 B1 EP 3900106B1
Authority
EP
European Patent Office
Prior art keywords
conductor
glass pane
glass
film
pane according
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.)
Active
Application number
EP19813360.5A
Other languages
German (de)
English (en)
Other versions
EP3900106A1 (fr
Inventor
David BERTEL
Stefan Droste
Christian EFFERTZ
Thomas HOLTSTIEGE
Guillaume Francois
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Saint Gobain Sekurit France SAS
Original Assignee
Saint Gobain Glass France SAS
Compagnie de Saint Gobain SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Saint Gobain Glass France SAS, Compagnie de Saint Gobain SA filed Critical Saint Gobain Glass France SAS
Publication of EP3900106A1 publication Critical patent/EP3900106A1/fr
Application granted granted Critical
Publication of EP3900106B1 publication Critical patent/EP3900106B1/fr
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/1271—Supports; Mounting means for mounting on windscreens

Definitions

  • the invention relates to a glass pane for a vehicle as well as its use.
  • Examples include the reception of signals from a navigation system or signals from communication systems.
  • Navigation systems can be, for example, a satellite-based navigation satellite system (GNSS).
  • GNSS Global Positioning System
  • GLONASS GLObal Navigation Satellite System
  • Other navigation systems are possible, for example, based on mobile radio systems.
  • Communication systems can be, for example, short-range radio systems for car-to-car or car-to-infrastructure or mobile radio communication systems, e.g. mobile communication systems of the 2nd / 3rd / 4th or 5th generation.
  • Exemplary arrangements are from the US 20140176374 A1 known.
  • the corresponding devices require openings that are susceptible to corrosion.
  • such devices often spoil the visual impression.
  • such devices often also provide a source of noise and increased wind resistance.
  • such antennas are also the target of vandalism.
  • GNSS antennas can be placed inside the vehicle interior, for example below the dashboard or below the windshield.
  • electrically conductive layers such as infrared-reflecting layers or low-E layers can prevent the transmission of electromagnetic radiation through the pane and block the GNSS signal.
  • Typical GPS antennas are implemented as planar antennas and typically as patch antennas and are, for example, WO 00/22695 A1 , the DE 202006011919 U1 or the DE 202010011837 U1
  • a flat metallic antenna structure is mounted on one side of a printed circuit board or a ceramic carrier. On the opposite side, a flat base plate is arranged as a ground plane. The antenna structure and base plate are connected to an electrical receiving unit via electrical lines. Due to the material thickness of the circuit board or the ceramic carrier, the antenna has a certain thickness and is clearly visible and not very aesthetic when arranged directly on the windshield.
  • the applicant's products also provide antennas on or in a pane of glass. However, it turns out that connecting such antennas to systems remote from the pane of glass is not without problems.
  • the antenna structure and a strip conductor structure are located on the pane in such a way that a film F with the strip conductor is placed around the edge of the glass pane GS1 in the edge area of the pane.
  • the fastening area for the glass pane to a vehicle body A is also located in the same area.
  • the fastening area often contains KL adhesive (based on polyurethane).
  • the previous strip conductor structures provided a conductor for the counterweight GND (ground potential) in parallel to the actual antenna conductor in the same structural plane.
  • the signal on the strip conductor is impaired, particularly at high frequencies (> 500 MHz, especially 1 GHz).
  • This impairment may be caused by the adhesive KL and its electric field constant and/or the spatial proximity to another GND potential (ground potential) of the vehicle body A.
  • the object of the present invention is to provide an improved glass pane for a vehicle in which an antenna and in particular a GPS antenna and a connection structure with improved properties can be integrated easily and inexpensively.
  • the film is wrapped around the first glass layer in the region of the connecting structure.
  • the film is flexible. In a further embodiment of the invention, the film has a thickness of 25 ⁇ m to 500 ⁇ m
  • the film is substantially transparent in the wavelength range 400 nm -700 nm.
  • the distance between each of the two lateral conductors and the center conductor is between 50 ⁇ m and 300 ⁇ m.
  • the center conductor has a width of 50 ⁇ m to 300 ⁇ m.
  • the film has a thickness of 25 ⁇ m to 300 ⁇ m.
  • the conductor layers have a height of 1 ⁇ m - 75 ⁇ m.
  • vias are arranged at least between one of the lateral conductors and the conductor opposite with respect to the film.
  • At least one of the two conductor layers is at least partially provided with a cover layer.
  • the cover layer can prevent unwanted contact.
  • the antenna structure is designed to receive high-frequency signals.
  • the antenna structure can be designed to receive mobile radio communication signals and/or signals from a (satellite-based) positioning system.
  • the film comprises at least one material selected from the group comprising polyimide, polyurethane, polymethylene methacrylic acid, polycarbonate, polyethylene terephthalate, polyvinyl butyral, FR6, acrylonitrile-butadiene-styrene copolymer, polyethylene, polypropylene, polyvinyl chloride, polystyrene, polybutylene terephthalate, polyamide.
  • a material can be used which is suitable as a carrier for conductor structures during production and is optionally optically transparent and/or can be easily bonded to a glass layer.
  • the glass pane preferably contains glass, particularly preferably flat glass, float glass, quartz glass, borosilicate glass, soda-lime glass or clear plastics, preferably rigid clear plastics, in particular polyethylene, polypropylene, polycarbonate, polymethyl methacrylate, polystyrene, polyamide, polyester, polyvinyl chloride and/or mixtures thereof.
  • the conductor structures comprise silver and/or copper and/or gold and/or aluminum and/or indium and/or graphene.
  • conductor structures can also be adapted to electrical and/or thermal and/or mechanical boundary conditions.
  • connection structure has a connection region for an electromechanical high-frequency connection element.
  • connection structure can have an SMA socket.
  • the glass pane is a laminated glass pane, wherein the glass pane has a second glass layer, wherein the film is inserted between the first glass layer and the second glass layer.
  • the film can be applied both to the outside of a pane and between the glass layers of a laminated glass pane.
  • a vehicle with a glass pane according to the invention in particular a land, sea, air or space vehicle, is provided.
  • the glass pane according to the invention is used to receive signals for satellite-based navigation, in particular to receive GNSS signals from Navstar GPS, Galileo, Glonass, Beidou, Navic, QZSS.
  • the glass pane according to the invention is used to receive signals from a mobile communication system, in particular a mobile communication system of the 2nd, 3rd, 4th or 5th generation.
  • the invention is explained in more detail below using a drawing and exemplary embodiments.
  • the drawing is a schematic representation and not to scale. The drawing does not limit the invention in any way.
  • FIG. 1 a glass pane for a vehicle is shown in the installed state.
  • the glass pane has at least a first glass layer GS2.
  • a film F with two conductor layers LS1, LS2 is applied to the first glass layer GS2.
  • a cross-section of such a film is shown in Figure 2
  • Application can involve gluing/laminating or bonding in an autoclave (e.g. for laminated glass panes).
  • At least one of the conductor layers is structured, as will be described below.
  • the structuring can be created by various processes, e.g. by appropriate (screen) printing, (ablative) laser structuring, (wet chemical) etching, etc.
  • An antenna structure ANT is provided by at least one of the two conductor layers LS1, see Figure 4 .
  • the antenna structure ANT in Figure 4 itself can be suitably chosen and can include, for example, a horn-like antenna, a polarized antenna, broadband antennas, etc.
  • connection structure GCPW to the antenna structure is provided by means of the two conductor layers LS1, LS2.
  • the connection structure GPCW has a center conductor ML on one side of the film, which is flanked by two lateral conductors L1, L2, whereby the center conductor ML and the flanking two lateral conductors L1, L2 are located in one of the two conductor layers, here in the conductor layer LS1.
  • a conductor GL is also provided, which is arranged essentially parallel to the center conductor ML and the flanking two lateral conductors L1, L2, whereby the flanking two lateral conductors L1, L2 and the conductor GL have essentially the same potential.
  • the conductor GL in the other conductor layer LS2 has a width which is generally wider than the sum of the width b ML of the center conductor ML and the widths of the distances a 1 , a 2 of each of the two lateral conductors L1, L2 to the center conductor ML.
  • the film F is - as in Figure 1 shown - in the area of the connection structure GCPW wrapped around the first glass layer GS2.
  • the film F is flexible. In a further embodiment of the invention, the film has a thickness h F of 25 ⁇ m to 500 ⁇ m.
  • the film F is essentially transparent in the wavelength range 400 nm - 700 nm. This can be provided by appropriate choice of material.
  • the conductor structure GPCW and/or the antenna structure ANT are arranged in an optically visible area, but it can also be the case that these structures are arranged in an edge area that is typically optically opaque due to black printing. In such a case, the transparency of the film F and/or the conductor layers LS1, LS2 does not have to be taken into account.
  • the center conductor ML has a width b ML of 50 ⁇ m to 300 ⁇ m.
  • the width of the center conductor ML can depend on the material used for the conductor layer LS1 and/or the frequency of the signals to be conducted.
  • one or more vias VIA - as in Figure 3 indicated - arranged at least between one of the lateral conductors L1 and the conductor GL opposite with respect to the foil F.
  • the vias VIA can be arranged at a predetermined distance.
  • vias VIA can also be provided in an analogous manner in relation to the second lateral conductor L2 and the opposite conductor GL. The distance can be based on the wavelength of the signals to be conducted.
  • the characteristic impedance of the connection structure GCPW can be adjusted by means of such vias VIA.
  • At least one of the two conductor layers LS1, LS2 is (at least) partially provided with a cover layer.
  • the antenna structure ANT is designed to receive high-frequency signals.
  • the antenna structure ANT can be designed to receive mobile radio communication signals and/or signals from a (satellite-based) positioning system.
  • the film F comprises at least one material selected from the group comprising polyimide, polyurethane, polymethylene methacrylic acid, polycarbonate, polyethylene terephthalate, polyvinyl butyral, FR6, acrylonitrile-butadiene-styrene copolymer, polyethylene, polypropylene, polyvinyl chloride, polystyrene, polybutylene terephthalate, polyamide.
  • a material can be used which is suitable as a carrier for conductor structures during production and is optionally optically transparent and/or can be easily bonded to a glass layer.
  • the conductor layers LS1, LS2 comprise silver and/or copper and/or gold and/or aluminum and/or indium and/or graphene. It should be noted that the conductor layers LS1, LS2 can comprise different materials. However, they preferably comprise the same materials. This means that the conductor structures can also be adapted to electrical and/or thermal and/or mechanical boundary conditions.
  • connection structure GCPW - as in Figure 1 indicated - a connection area S for an electromechanical high-frequency connection element.
  • the connection structure can have an SMA socket.
  • the SMA socket can, for example, have an angle arrangement so that a low installation height is provided in the connection area.
  • vehicle windows are equipped with an electromechanical high-frequency connection element S as a built-in part / replacement part in order to enable quick installation and secure contact.
  • the glass pane is a laminated glass pane, wherein the glass pane has a second glass layer GS1, wherein the film F is inserted between the first glass layer GS2 and the second glass layer GS1.
  • the Film F (with the respective conductor layers LS1, LS2) can be applied directly to one of the glass layers GS1, GS2, or an intermediate layer VF can be arranged above and/or below the film F (with the respective conductor layers LS1, LS2).
  • the intermediate layer VF essentially serves to connect the glass layers GS1, GS2.
  • the intermediate layer VF can have recesses.
  • the intermediate layer VF contains at least one substance selected from the group comprising polybutylene terephthalate (PBT), polycarbonate (PC), polyethylene terephthalate (PET) and polyethylene naphthalate (PEN), polyvinyl chloride (PVC), polyvinyl fluoride (PVF), polyvinyl butyral (PVB), ethylene vinyl acetate (EVA), polyacrylate (PA), polymethyl methacrylate (PMMA), polyurethane (PUR), and/or mixtures and copolymers thereof.
  • PBT polybutylene terephthalate
  • PC polycarbonate
  • PET polyethylene terephthalate
  • PEN polyethylene naphthalate
  • PVC polyvinyl chloride
  • PVF polyvinyl fluoride
  • PVB polyvinyl butyral
  • EVA ethylene vinyl acetate
  • PA polyacrylate
  • PMMA polymethyl methacrylate
  • PUR polyurethane
  • a vehicle with a glass pane according to the invention in particular a land, sea, air or space vehicle (or combinations thereof) is provided.
  • the glass pane according to the invention is used to receive signals for satellite-based navigation, in particular to receive GNSS signals from Navstar GPS, Galileo, Glonass, Beidou, Navic, QZSS.
  • the glass pane according to the invention according to one of the preceding claims 1 to 18 is used to receive signals from a mobile communication system, in particular a mobile communication system of the 2nd, 3rd, 4th or 5th generation.

Landscapes

  • Joining Of Glass To Other Materials (AREA)
  • Details Of Aerials (AREA)

Claims (14)

  1. Vitrage pour véhicule, comprenant une première couche de verre (GS2), un film (F) avec deux couches conductrices (LS1, LS2) appliquées sur la première couche de verre (GS2), les deux couches conductrices (LS1, LS2) étant situées à l'opposé l'une de l'autre par rapport au film (F), une structure d'antenne est fournie au moyen d'au moins une des deux couches conductrices (LS1), caractérisé en ce qu'une structure de connexion (GCPW) à la structure d'antenne est fournie au moyen des deux couches conductrices, la structure de connexion ayant un conducteur central (ML) qui est flanqué de deux conducteurs latéraux (L1, L2), le conducteur central (ML) et les deux conducteurs latéraux (L1, L2) étant situés dans l'une des deux couches conductrices (LS1), un conducteur (GL) étant prévu dans l'autre couche conductrice (LS2) des deux couches conductrices (LS1, LS2), ce conducteur (GL) étant disposé essentiellement parallèlement au conducteur central (ML) et aux deux conducteurs latéraux (L1, L2), les deux conducteurs latéraux (L1, L2) et le conducteur (GL) ayant essentiellement le même potentiel.
  2. Vitrage selon la revendication 1, caractérisé en ce que le film (F) est flexible et est placé autour de la première couche de verre (GS2) dans la région de la structure de connexion (GCPW).
  3. Vitrage selon l'une des revendications 1 ou 2, caractérisé en ce que le film (F) est essentiellement transparent dans la gamme de longueurs d'onde allant de 400 nm à 700 nm.
  4. Vitrage selon l'une des revendications 1 à 3, caractérisé en ce que la distance (a1, a2) de chacun des deux conducteurs latéraux (L1, L2) par rapport au conducteur central (ML) est comprise entre 50 µm min et 300 µm.
  5. Vitrage selon l'une des revendications 1 à 4, caractérisé en ce que le conducteur central (ML) a une largeur (bML) comprise entre 50 µm et 300 µm.
  6. Vitrage selon l'une des revendications 1 à 5, caractérisé en ce que le film (F) a une épaisseur (hF) de 25 µm à 300 µm.
  7. Vitrage selon l'une des revendications 1 à 6, caractérisé en ce que les couches conductrices ont une hauteur (hLS1, hLS2) de 10 µm à 75 µm.
  8. Vitrage selon l'une des revendications 1 à 7, caractérisé en ce que des contacts traversants sont disposés dans chaque cas entre un conducteur latéral (L1) et/ou l'autre conducteur latéral (L2) des deux conducteurs latéraux (L1, L2) et le conducteur (GL) de la deuxième couche conductrice (LS2) situé à l'opposé par rapport au film (F).
  9. Vitrage selon l'une des revendications 1 à 8, caractérisé en ce qu'au moins l'une des deux couches conductrices (L1, L2) est au moins partiellement pourvue d'une couche de recouvrement.
  10. Vitrage selon l'une des revendications 1 à 9, caractérisé en ce que la structure d'antenne (ANT) est conçue pour recevoir des signaux à haute fréquence.
  11. Vitrage selon l'une des revendications 1 à 10, caractérisé en ce que la structure de connexion (GCPW) comporte une zone de connexion pour un élément de connexion électromécanique radiofréquence (S).
  12. Vitrage selon l'une des revendications 1 à 11, caractérisé en ce que la vitre est une vitre feuilletée, la vitre ayant une deuxième couche de verre (GS1), le film (F) étant introduit entre la première couche de verre (GS2) et la deuxième couche de verre (GS1).
  13. Véhicule équipé d'un vitrage selon l'une des revendications 1 à 12.
  14. Utilisation d'un vitrage selon l'une des revendications 1 à 12 pour la réception de signaux pour la navigation par satellite, en particulier pour la réception de signaux GNSS de Navstar GPS, Galileo, Glonass, Beidou, Navic, QZSS.
EP19813360.5A 2018-12-21 2019-12-09 Vitre pour un véhicule Active EP3900106B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP18215230 2018-12-21
PCT/EP2019/084193 WO2020126606A1 (fr) 2018-12-21 2019-12-09 Vitre pour un véhicule

Publications (2)

Publication Number Publication Date
EP3900106A1 EP3900106A1 (fr) 2021-10-27
EP3900106B1 true EP3900106B1 (fr) 2024-12-25

Family

ID=64755471

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19813360.5A Active EP3900106B1 (fr) 2018-12-21 2019-12-09 Vitre pour un véhicule

Country Status (4)

Country Link
EP (1) EP3900106B1 (fr)
CN (1) CN111602290A (fr)
MA (1) MA54500A (fr)
WO (1) WO2020126606A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102663936B1 (ko) 2019-05-08 2024-05-08 쌩-고벵 글래스 프랑스 차량 판유리

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2784506A1 (fr) 1998-10-12 2000-04-14 Socapex Amphenol Antenne a plaque
DE202006011919U1 (de) 2006-08-02 2006-10-19 Fuba Automotive Gmbh & Co. Kg Streifenleitungsantenne
DE202010011837U1 (de) 2010-08-26 2011-05-12 Kathrein-Werke Kg Keramik-Patch-Antenne sowie auf einer Leiterplatine sitzende Keramik-Patch-Antenne
US8947307B2 (en) 2012-12-21 2015-02-03 Jebsee Electronics Co., Ltd. Shark fin type car antenna assembly
JP6632634B2 (ja) 2015-04-08 2020-01-22 サン−ゴバン グラス フランスＳａｉｎｔ−Ｇｏｂａｉｎ Ｇｌａｓｓ Ｆｒａｎｃｅ 車両ウィンドウアンテナ板材
US10320053B2 (en) * 2016-02-16 2019-06-11 GM Global Technology Operations LLC Wideband coplanar waveguide fed monopole applique antennas

Also Published As

Publication number Publication date
CN111602290A (zh) 2020-08-28
EP3900106A1 (fr) 2021-10-27
WO2020126606A1 (fr) 2020-06-25
MA54500A (fr) 2022-03-30

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