WO2018145843A1 - Procédé de fabrication d'une vitre feuilletée munie d'une structure électroconductrice et vitre feuilletée - Google Patents

Procédé de fabrication d'une vitre feuilletée munie d'une structure électroconductrice et vitre feuilletée Download PDF

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Publication number
WO2018145843A1
WO2018145843A1 PCT/EP2018/050492 EP2018050492W WO2018145843A1 WO 2018145843 A1 WO2018145843 A1 WO 2018145843A1 EP 2018050492 W EP2018050492 W EP 2018050492W WO 2018145843 A1 WO2018145843 A1 WO 2018145843A1
Authority
WO
WIPO (PCT)
Prior art keywords
electrically conductive
conductive structure
laminating film
composite pane
composite
Prior art date
Application number
PCT/EP2018/050492
Other languages
German (de)
English (en)
Inventor
Michael Zeiss
Christian EFFERTZ
Klaus SCHMALBUCH
Original Assignee
Saint-Gobain Glass France
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 filed Critical Saint-Gobain Glass France
Priority to CN201880000299.7A priority Critical patent/CN108738376A/zh
Publication of WO2018145843A1 publication Critical patent/WO2018145843A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/84—Heating arrangements specially adapted for transparent or reflecting areas, e.g. for demisting or de-icing windows, mirrors or vehicle windshields
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/017—Manufacturing methods or apparatus for heaters

Definitions

  • the invention relates to a method for producing a composite pane having an electrically conductive structure.
  • Such components may be, for example, heating wires or foils, an electrically conductive coating serving as heating and / or antenna, screen-printed resistance heating structures, or electronic components integrated on or in the disk, such as antenna amplifiers, tuners, LEDs or sensors.
  • the coatings used generally have a good electrical conductivity, which allows heating of the disc, so that the disc can be kept free of ice and condensation.
  • the coatings comprise electrically conductive layers, in particular silver-based. They are usually electrically contacted with two current busbars (also called bus bars or busbars), between which a current flows through the heatable coating. This type of heating is described, for example, in WO 03/024155 A2, US 2007/0082219 A1.
  • a common problem of windshields with electrical components is their connection to a supply voltage.
  • the current busbars are usually printed from a silver-containing, conductive screen printing paste on glass substrates.
  • Such bus bars have a relatively high sheet resistance after printing on the glass substrate.
  • By firing the most band-shaped and narrow running current busbars are fixed on the glass substrate. For aesthetic reasons, they are placed near an outer edge of the transparent pane and under an opaque one Edge coating laminated.
  • the burning of the silver-containing screen printing paste on the disc increases the conductivity of the busbars, but is very time-consuming and energy-intensive, especially in the production of large quantities from an economic point of view. In addition, this production step requires its own process station and is thus space-consuming and cost-intensive.
  • the method according to the invention for producing a composite pane having an electrically conductive structure comprises at least the following steps:
  • the electrically conductive structure is printed on a laminating film
  • step b) after step a) the electrically conductive structure is dried until cured
  • the laminating film is arranged on a base disk, d) a cover disk is arranged on the laminating film and e) the assembly of base disk, laminating film with electrically conductive structure and cover disk is autoclaved.
  • the method according to the invention is distinguished by the fact that the electrically conductive structure is printed on the laminating film and then dried, without it being necessary to burn-in the electrically conductive structure prior to lamination of the pane.
  • the base disk and the cover disk After treatment of the assembly in the autoclave according to step e) of the method according to the invention, the base disk and the cover disk connected to each other via the laminating film, the electrically conductive structure being located inside the laminating film and being arranged between the base disk and the cover disk.
  • the burn-in, also referred to as sintering, of the electrically conductive structure prior to the treatment of the composite pane in the autoclave is saved.
  • a process station namely the sintering process station, can be dispensed with in the manufacture of the composite pane, thereby saving time and energy costs.
  • the electrically conductive structure is a component of the composite pane, in particular a light source, electrically connected to a connection element. e.g. Flat conductor or round conductor, contacted.
  • a connection element e.g. Flat conductor or round conductor
  • the component is electrically conductively connected via the electrically conductive structure, wherein a plurality of identical or different components in a pane can be connected to the structure such that only one connection element is necessary. All other connections are integrated in the disc.
  • the electrically conductive structure extends from the component to a side edge of the composite pane. In the Randberiech the composite disk, the electrically conductive structure is soldered or glued to a flat conductor.
  • the flat conductor consists for example of a 50 ⁇ thick copper foil and is isolated outside its terminal region with a polyimide layer. This allows the flat conductor to contact the electrically conductive structure and be led beyond the edge of the window pane without causing an electrical short circuit.
  • the flat conductor may comprise two separate electrical conductors in a common insulating sheath. Via the flat conductor and the electrically conductive structure, the component of the composite pane can be connected to a power supply and control electronics.
  • a component of the composite pane may be an (O) LED, photodiodes for infrared, visible and / or ultraviolet electromagnetic radiation, camera, sensor, antenna, antenna amplifier, electrode and surface electrode, layer, covering or protective layer.
  • An LED as a component of the composite pane has the advantage that it can be perfectly integrated into a composite pane due to its small dimensions and low power consumption.
  • the wavelength range emitted by the LED as the light source can be freely selected in the visible light range, for example from practical and / or aesthetic points of view.
  • the LED can be arranged at any point of the composite disk, in particular on the side edge of the composite disk or in a small recess between the base disk and cover disk.
  • the component itself is at least partially formed from the electrically conductive structure.
  • the electrically conductive structure may have an increased electrical conductivity after step d) compared to step a). This is advantageous since, in this case, no additional sintering of the electrically conductive structure has to take place before the autoclave process.
  • the furnace systems usually required for sintering according to the prior art are comparatively expensive to purchase and operate.
  • the production process is significantly simplified, because it can be dispensed with a production step.
  • a printing process is used in step a) for printing the laminating film, which can be carried out both on flat and curved Lamierfolien.
  • the electrically conductive structure is preferably applied by means of a screen printing method and / or ink jet printing method.
  • the screen printing process the electrically conductive structure can be particularly fast on the laminating film muster.
  • the ink-jet printing process offers a high degree of individualization of the structure, for example different structures are conceivable in a line process, the cost of materials being kept very low.
  • a composition having the consistency of an ink or paste may be used in step a). Such a composition may be advantageous to improve precision in printing.
  • any geometry can be printed on a surface of the laminating film.
  • Preferred shapes are, for example, parallel conductor lines or contiguous surfaces.
  • the electrically conductive structure may be in the form of a frame around a partial area of the total area of the laminating film, in particular the area of a camera window.
  • the composition of the electrically conductive structure may comprise organic solvents and electrically conductive particles, in particular metallic particles selected from base metals, precious metals and / or mixtures and alloys of silver.
  • the organic solvents may also serve as binders of the composition.
  • the electrically conductive structure may be formed as at least one conductor track.
  • two strip conductors can contact an electrically conductive coating as two so-called bus bars.
  • the bus bars are formed as two bus bars located opposite one another in the composite pane. This contacting is particularly advantageous in order to achieve a low-resistance and corrosion-stable contacting between the coating and the other connection elements.
  • the method according to the invention can have additional method steps.
  • An optional method step may be to prepare the arrangement and / or transport the arrangement of base disk, laminating film with electrically conductive structure and cover disk before step e).
  • the preparation may include arranging the laminating film or several films and the disks, inserting flat or
  • Transport of the assembly may advantageously be combined with step b) such that the electrically conductive structure dries during preparation or transportation of the assembly. If the process steps are performed on a non-planar base or cover disk, the bending of the non-planar disk may take place before step a).
  • the electrically conductive structure may extend at least partially in the laminating film.
  • the laminating film comprises at least one layer of a thermoplastic polymer, in particular polyvinyl butyral (PVB).
  • the thickness of the laminating films is preferably from 0.2 mm to 2 mm, particularly preferably from 0.3 mm to 1, 5 mm. It is particularly preferred to use polyvinyl butyral in a thickness of, for example, 0.38 mm or 0.76 mm for the lamination of two glass panes.
  • the laminating film may comprise several layers of thermoplastic, e.g. Polyvinyl butyral (PVB) or ethylene vinyl acetate (EVA).
  • PVB Polyvinyl butyral
  • EVA ethylene vinyl acetate
  • the base disk or the cover disk may preferably be plastic, preferably rigid clear plastics, in particular polyethylene, polypropylene, polycarbonate, polymethyl methacrylate, polystyrene, polyamide, polyester, polyvinyl chloride and / or mixtures thereof, or glass, particularly preferably flat glass, float glass, quartz glass, borosilicate glass, lime -Natron glass, included.
  • the base disk or the cover disk may preferably be transparent, in particular for the use of the windshield or rear window of a vehicle.
  • the thickness of the base plate or the cover plate can vary widely and so perfectly meet the requirements of To be adjusted individually. Preferably standard thicknesses of 1, 0 mm to 25 mm, preferably from 1, 4 mm to 2.5 mm are used for vehicle glass.
  • the composite disk may have any three-dimensional shape.
  • the discs are flat or slightly or strongly curved in one direction or in several directions of the space.
  • the discs can be colorless or colored.
  • the invention further comprises a composite pane obtainable by a method according to the invention, wherein the composite pane has a base disk, an electrically conductive laminating film having a printed structure arranged on the base disk and a cover disk arranged on the laminating film in terms of surface area.
  • the electrically conductive structure is provided for contacting a component of the composite pane via a connection element, wherein the electrically conductive, printed structure has a surface resistance value of at least 6 10 -3 ohm / ⁇ [ ⁇ ] (ohms per square) is particularly advantageous in terms of a low-resistance conductivity processed.
  • the electrically conductive structure is arranged on the outer edge of the pane.
  • the distance to the outer edge is preferably less than 10 cm, more preferably less than 0.5 cm. This allows electrical contacting of the electrically conductive structure, for example, with a flat conductor, under an optically inconspicuous black print or a cover, for example, a camera body, to hide.
  • the electrically conductive structure may have a meander-like shape and / or it may be formed as two separate electrodes, which are meander-shaped.
  • the invention further comprises the use of a composite disk produced by the method according to the invention as Vehicle window, ship's window or aircraft windscreen, as structural glazing or architectural glazing, preferably as a vehicle window, particularly preferably as a side window, windscreen or rear window.
  • FIG. 1 shows a flowchart of an embodiment of the invention
  • Figure 2 a plan view of an embodiment of a
  • Figure 3 an enlarged cross-sectional view along the
  • Figure 4 a plan view of an alternative embodiment of a composite pane according to the invention.
  • FIG. 1 shows a flow chart of a possible embodiment of the method according to the invention for producing a composite pane 1 with an electrically conductive structure 5 comprising the steps: a) S1: printing of the electrically conductive structure 5 on a laminating film 3, wherein the electrically conductive structure 5 for connecting a Component 6, 5 of the composite disk 1 is provided to a voltage source,
  • step b) S2: after step a) drying of the electrically conductive structure 5 until curing at room temperature of about 20 ° C. and atmospheric humidity of less than 25%,
  • the laminating film 3 is typically in the autoclave process at a
  • the laminating film 3 adheres the base disk 2 to the
  • Cover disk 4 so that after cooling a permanent bond between the base disk 2, laminating film 3 and cover 4 is formed.
  • the method for producing a composite pane 1 with an electrically conductive structure 5 may comprise additional method steps.
  • An optional process step may be
  • FIG. 2 shows a plan view of an embodiment of a composite pane 1 according to the invention.
  • a composite pane 1 can be used for example as a windshield in the window opening of a motor vehicle.
  • the composite pane 1 has an electrically conductive structure 5 and a LED 6 as components of the composite pane 1.
  • the LED 6 is located in the upper region of the composite pane 1.
  • the electrically conductive structure 5 is a silver print having a width of 1 mm. Alternatively, the width of the electrically conductive structure may vary from 0.1 mm to 2 mm.
  • the electrically conductive structure 5 contacts the LED 6 and extends in the form of two parallel conductor tracks to a side edge of the composite pane 1. In the edge region of the composite pane 1, the electrically conductive structure 5 via a
  • solder connection connected to a flat conductor 7 electrically conductive.
  • the flat conductor 7 consists of two mutually insulated and lying in a common sheath conductors.
  • One of the conductor tracks of the electrically conductive structure 5 is connected to a respective conductor of the flat conductor 7.
  • the LED 6 is connected to an external power supply and control electronics, not shown.
  • FIG. 3 shows a cross-sectional view along the section line A - A 'of the composite pane 1 from FIG. 1.
  • the laminated pane 1 comprises a base plate 2, a laminating film 3 and a cover plate 4.
  • the laminating film 3 connects a surface III of the base plate 2 with a surface II of the cover plate 4.
  • Both the base plate 2 and the cover plate 4 are slices of soda-lime -Glas or plastic with a thickness of about 2.1 mm to 3 mm.
  • the laminating film 3 is about 0.76 mm thick and contains polyvinyl butyral (PVB).
  • the laminating film 3 has an optical transparency for visible light and infrared radiation of> 80%.
  • FIG. 4 shows a further plan view of an alternative embodiment of a composite pane 1 according to the invention with an electrically conductive structure 5.
  • the electrically conductive structure 5 forms two separate electrodes with a width of 1 mm.
  • the electrodes have a meander-like shape with a distance of about 1 mm around each other.
  • the electrodes are capacitively coupled with each other.
  • the electrodes Via the conductor tracks of the electrically conductive structure 5, the electrodes are connected to the flat conductor 7.
  • the electrodes may be formed as an electrically conductive coating, which is connected via the conductor tracks of the electrically conductive structure 5 to the flat conductor 7.
  • the electrically conductive coating contains, for example, silver, zinc oxide, indium tin oxide, tin oxide, gallium, gold, copper, tungsten and / or mixtures thereof.
  • the electrically conductive coating is characterized by a layer thickness in the nanometer range, in particular in the range of 10 nm to 500 nm.
  • the coating is designed as a transparent surface coating and acts as a disk heater.
  • the electrically conductive structure 5 is formed as two current busbars arranged in the edge region of the composite pane 1, which contact the coating electrically on two of its opposite sides.
  • the electrically conductive structure 5 can surround and heat a camera window in the composite pane 1.
  • Such camera windows are used for a camera or sensor system placed in the vehicle as a viewing window to the outside and are arranged in the upper region of a windshield or rear window.
  • a dry and fog-free camera window is necessary.
  • the electrically conductive structure 5 serves at least for a short time as a heating device of the camera window.
  • the camera window can have an area of 1 cm 2 to 100 cm 2 and the shape of a rectangle, circle, ellipse or oval.

Landscapes

  • Joining Of Glass To Other Materials (AREA)
  • Surface Treatment Of Glass (AREA)
  • Laminated Bodies (AREA)

Abstract

L'invention concerne un procédé de fabrication d'une vitre feuilletée (1) munie d'une structure électroconductrice, selon lequel a) la structure électroconductrice (5) est plaquée sur un film stratifié (3), b) après l'étape a), la structure électroconductrice est séchée jusqu'à son durcissement, c) le film stratifié (3) est agencé sur une vitre de base (2), d) une vitre de recouvrement (4) est agencée sur le film stratifié (3) et e) l'ensemble composé de la vitre de base (2), du filtre stratifié (3) muni de la structure électroconductrice (5), et de la vitre de recouvrement (4) est autoclavé. L'invention concerne également une vitre feuilletée (1) munie d'une structure électroconductrice (5).
PCT/EP2018/050492 2017-02-13 2018-01-10 Procédé de fabrication d'une vitre feuilletée munie d'une structure électroconductrice et vitre feuilletée WO2018145843A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201880000299.7A CN108738376A (zh) 2017-02-13 2018-01-10 制造具有导电结构的复合玻璃板的方法以及复合玻璃板

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP17155815.8 2017-02-13
EP17155815 2017-02-13

Publications (1)

Publication Number Publication Date
WO2018145843A1 true WO2018145843A1 (fr) 2018-08-16

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PCT/EP2018/050492 WO2018145843A1 (fr) 2017-02-13 2018-01-10 Procédé de fabrication d'une vitre feuilletée munie d'une structure électroconductrice et vitre feuilletée

Country Status (2)

Country Link
CN (1) CN108738376A (fr)
WO (1) WO2018145843A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022115734A1 (de) 2022-06-24 2024-01-04 Valeo Schalter Und Sensoren Gmbh Verteilung von elektrischer Leistung zu einer elektronischen Vorrichtung eines Fahrzeugs

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2936398A1 (de) * 1979-09-08 1981-03-26 Ver Glaswerke Gmbh Elektrisch beheizbare glasscheibe
US4373130A (en) * 1979-01-24 1983-02-08 Saint-Gobain Vitrage Concealed electric heating element arrangement for vehicle windshields
WO2003024155A2 (fr) 2001-09-07 2003-03-20 Centre Luxembourgeois De Recherches Pour Le Verre Et La Ceramique S.A. (C.R.V.C.) Vitre de vehicule chauffante possedant differentes tensions dans differentes zones chauffantes
US20070082219A1 (en) 2003-11-28 2007-04-12 Saint-Gobain Glass France Transparent substrate which can be used alternatively or cumulatively for thermal control, electromagnetic armour and heated glazing
WO2008091001A2 (fr) * 2007-01-22 2008-07-31 Panasonic Corporation Élément chauffant en feuille
WO2013020863A1 (fr) * 2011-08-09 2013-02-14 Saint-Gobain Glass France Contacts électriques composites, procédé de fabrication de contacts électriques composites
WO2013053629A1 (fr) * 2011-10-10 2013-04-18 Saint-Gobain Glass France Vitre dotée d'une surface de commande éclairée

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4373130A (en) * 1979-01-24 1983-02-08 Saint-Gobain Vitrage Concealed electric heating element arrangement for vehicle windshields
DE2936398A1 (de) * 1979-09-08 1981-03-26 Ver Glaswerke Gmbh Elektrisch beheizbare glasscheibe
WO2003024155A2 (fr) 2001-09-07 2003-03-20 Centre Luxembourgeois De Recherches Pour Le Verre Et La Ceramique S.A. (C.R.V.C.) Vitre de vehicule chauffante possedant differentes tensions dans differentes zones chauffantes
US20070082219A1 (en) 2003-11-28 2007-04-12 Saint-Gobain Glass France Transparent substrate which can be used alternatively or cumulatively for thermal control, electromagnetic armour and heated glazing
WO2008091001A2 (fr) * 2007-01-22 2008-07-31 Panasonic Corporation Élément chauffant en feuille
WO2013020863A1 (fr) * 2011-08-09 2013-02-14 Saint-Gobain Glass France Contacts électriques composites, procédé de fabrication de contacts électriques composites
WO2013053629A1 (fr) * 2011-10-10 2013-04-18 Saint-Gobain Glass France Vitre dotée d'une surface de commande éclairée

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022115734A1 (de) 2022-06-24 2024-01-04 Valeo Schalter Und Sensoren Gmbh Verteilung von elektrischer Leistung zu einer elektronischen Vorrichtung eines Fahrzeugs

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Publication number Publication date
CN108738376A (zh) 2018-11-02

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