Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B32—LAYERED PRODUCTS
  • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
  • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
  • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
  • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
  • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
  • B32B17/10009—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets
  • B32B17/10036—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets comprising two outer glass sheets
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B32—LAYERED PRODUCTS
  • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
  • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
  • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
  • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
  • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
  • B32B17/10165—Functional features of the laminated safety glass or glazing
  • B32B17/10174—Coatings of a metallic or dielectric material on a constituent layer of glass or polymer
  • B32B17/10183—Coatings of a metallic or dielectric material on a constituent layer of glass or polymer being not continuous, e.g. in edge regions
  • B32B17/10192—Coatings of a metallic or dielectric material on a constituent layer of glass or polymer being not continuous, e.g. in edge regions patterned in the form of columns or grids
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B32—LAYERED PRODUCTS
  • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
  • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
  • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
  • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
  • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
  • B32B17/10165—Functional features of the laminated safety glass or glazing
  • B32B17/10174—Coatings of a metallic or dielectric material on a constituent layer of glass or polymer
  • B32B17/10201—Dielectric coatings
  • B32B17/10211—Doped dielectric layer, electrically conductive, e.g. SnO2:F
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B32—LAYERED PRODUCTS
  • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
  • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
  • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
  • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
  • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
  • B32B17/10165—Functional features of the laminated safety glass or glazing
  • B32B17/10541—Functional features of the laminated safety glass or glazing comprising a light source or a light guide
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B32—LAYERED PRODUCTS
  • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
  • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
  • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
  • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
  • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
  • B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
  • B32B17/10761—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer containing vinyl acetal
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B32—LAYERED PRODUCTS
  • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
  • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
  • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
  • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
  • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
  • B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
  • B32B17/10779—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer containing polyester
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B32—LAYERED PRODUCTS
  • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
  • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
  • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
  • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
  • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
  • B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
  • B32B17/10788—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer containing ethylene vinylacetate
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B32—LAYERED PRODUCTS
  • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
  • B32B2457/00—Electrical equipment
  • B32B2457/12—Photovoltaic modules

Definitions

• the invention relates to laminated glazing, especially to laminated glazing incorporating electronic components.
• the invention relates more particularly to a method for powering an electronic component of such a laminated glazing, and a laminated glazing specially adapted to the implementation of this method.
• the invention therefore also aims to provide a method for the electrical supply of electronic components of laminated glazing, which slows down, or even annihilates, the aging of these glazings.
• a further object of the invention is to provide an installation comprising, on the one hand, a laminated glazing unit incorporating an electronic component and, on the other hand, a source of electric current connected to said electronic component, said installation being designed to slow down, even annihilate, the aging defined above the glazing.
• the subject of the invention is a method for the electric power supply of an electronic component of a laminated glazing unit, said laminated glazing unit comprising at least two superimposed glass sheets with the interposition of at least one thermoplastic interlayer and the component electronics being housed between the two glass sheets, the method according to which the electronic component is connected to a source of electric current via an electroconductive circuit, which is housed between the glass sheets; according to the invention, the method is characterized in that the source of electric current is controlled in time by a microcontroller.
• the laminated glazings used in the process according to the invention are of the type commonly used in the art, defined above. They generally comprise at least one pair of glass sheets between which a thermoplastic interlayer is sandwiched. The dimensions and shape of the glazing are not critical for the definition of the invention.
• the glazing can be indifferently planar or curved or have any form compatible with its destination.
• the thermoplastic interlayer serves to secure the two sheets of glass. It generally comprises a polyester film, which may advantageously be selected from polyvinyl butyral (PVB), copolymers of ethylene and vinyl acetate (EVA) and polyethylene terephthalate (PET).
• the interlayer may comprise a single polyester film. Alternatively, the interlayer may comprise a stack of several polyester films of the type described above.
• the thickness of the thermoplastic interlayer is not critical for the definition of the invention. The optimum thickness must be determined in each particular case by the skilled person according to various parameters, including the dimensions of the glazing, the destination thereof and the composition of said interlayer.
• the thickness of the thermoplastic interlayer is generally less than 3.5 mm, this dimension being however given purely by way of example and not limiting as to the scope of the invention.
• the glazing may comprise more than two superimposed glass sheets, alternating with thermoplastic interleaves.
• the selection of the electronic component will depend on the desired functionality.
• Optoelectronic components such as in particular light-emitting diodes (LEDs), photoresistors, photodiodes and vision sensors, for example of the CCD type (abbreviation well known in the English technique “Charge Coupled Device”) and CMOS (abbreviation well known in the art of the English expression “Complementary Metal Oxide Semiconductor”) are particularly useful because directly related to the optical appearance of the glazing.
• CCD abbreviation well known in the English technique "Charge Coupled Device”
• CMOS abbreviation well known in the art of the English expression "Complementary Metal Oxide Semiconductor”
• other electronic components can also be inserted to make complete electronic circuits. Depending on the type of components and the electrical conductors used, these circuits may or may not be visible.
• the glazing used in the invention may comprise a single electronic component. However, it may also include several electronic components, which is the most common case.
• the glazing contains several electronic components, these can all be identical.
• the glazing may comprise a plurality of different electronic components, exerting different functionalities.
• electronic component designates an individual electronic component or, globally, a set of several electronic components.
• Typical conductive layers have a thickness generally between 0.02 and 1 ⁇ , preferably between 0.02 and 0.5 ⁇ , more preferably between 0.2 and 0.4 ⁇ , and a surface resistance between 0 and 80 ⁇ / square, preferably between 4 and 50 ⁇ / square, more preferably between 4 and 20 ⁇ / square.
• the electroconductive circuit can or must be visible, invisible, transparent, translucent or opaque.
• the electroconductive circuit comprises a transparent electroconductive layer, covering a glass sheet at the interface thereof with the thermoplastic interlayer.
• tracks or electroconductive strips may have been cut in this conductive layer by the action of a laser beam which burns the layer over a small width, thus producing non-conductive grooves which delimit the tracks. in the rest of the layer.
• the non-conductive grooves generally have a width of between 0.01 and 3 mm, preferably between 0.05 and 1.5 mm, and still more preferably between 0.1 and 0.8 mm. In this way, almost invisible electrical connections can be obtained even if the conductive layer has a slight coloration.
• the electroconductive circuit comprises an electroconductive layer which has been deposited on one of the glass sheets. Two distinct industrial operating processes can be implemented to deposit this electroconductive layer.
• the electroconductive layer comprises a pyrolytic layer deposited on the surface of the glass at temperatures ranging from 500 to 750 ° C.
• the conductive pyrolytic layer is deposited at temperatures of 570 to 660 ° C.
• a layer of this type can be deposited directly on the hot glass ribbon, at the exit of the step in which the molten glass floats on the surface of a liquid metal tin bath, in the well-known manufacturing process of the float glass. Deposition can be done by spraying (spraying) fine drops of liquid or by chemical vapor deposition.
• the pyrolytic layer is a chemically deposited layer in the vapor phase.
• the pyrolytic layer consists of at least one electroconductive oxide.
• the electrical conductivity is achieved by the presence of a small proportion of doping elements in the oxide layer (s).
• doping elements in the oxide layer (s).
• Such pyrolytic layers comprise, for example, indium or aluminum doped zinc oxide, fluorine or antimony-doped tin oxide or indium-doped indium oxide.
• tin (the latter generally being known by the abbreviation ITO).
• ITO indium-doped indium oxide
• the pyrolytic process is well suited to form a tin dioxide layer doped with fluorine and / or antimony.
• the electroconductive layer is obtained by magnetron sputtering under vacuum (known under the terminology "magnetron sputtering" in the English literature).
• This electroconductive layer may for example be a soft layer consisting of a stack of the following elementary layers:
• the surface resistance of these soft layers is generally from 1 to 1.
• Pyrolytic layers are generally preferred to magnetron layers because of their higher mechanical resistance to scratching.
• the electrical characteristics of the current source will depend on the electronic component and must be determined by those skilled in the art in each particular case. In general, in the case of light-emitting diodes (LEDs), it is recommended to use a current source whose peak voltage is between 1 and 5 V, ideally between 2 and 4 V.
• LEDs light-emitting diodes
• the source of electric power makes it possible to supply the electronic component with direct voltage when it is on, and with reverse voltage when the electronic component is off.
• the microcontroller associated with this source of electric current makes it possible to measure how long the electronic component has remained on. At the extinction of the electronic component, the microcontroller activates the source of current in reverse bias during the same time as that of the positive polarization.
• the activation time in positive polarization may increase considerably.
• the activation time may well understood to be adapted to the type of electronic component and the desired maximum temperature.
• the method according to the invention is advantageously applied to glazings in which the electroconductive circuit contains a metal oxide (especially tin dioxide) and where the thermoplastic interlayer contains metal ions, especially alkali metal ions and / or alkaline earth metals.
• a direct current source By feeding such a glazing unit with a direct current source, a progressive corrosion of the electroconductive circuit is observed near the electronic components, this corrosion being manifested by a brownish coloration of said electroconductive circuit. This corrosion is all the more rapid as the temperature of the glazing is high. This corrosion has not been observed in the case where the current source is, according to the invention, a source of electric current controlled by a microcontroller.
• the method according to the invention is therefore particularly applicable to laminated glazings in which the electroconductive circuit contains tin dioxide and the thermoplastic interlayer contains ions of at least one metal selected from sodium, potassium, potassium and potassium. lithium, calcium and magnesium.
• the electroconductive circuit contains tin dioxide and the thermoplastic interlayer contains ions of at least one metal selected from sodium, potassium, potassium and potassium. lithium, calcium and magnesium.
• tin dioxide which has been doped with fluorine and / or antimony, to render it electrically conductive or an electroconductive mixture of carbon dioxide. tin and indium.
• the electroconductive circuit it is also possible to implement for the electroconductive circuit, a stack of layers, at least one of which is electrically conductive.
• the stack of layers may, for example, comprise a layer of a metal that is a good conductor of electricity (advantageously silver).
• a stack of TiO 2 / ZnO / Ag / Ti / ZnO / SnO 2 layers is suitable.
• the invention also relates to a glazing unit comprising, on the one hand, two superimposed glass sheets with interposition of a thermoplastic interlayer and, on the other hand, at least two diodes which are housed between the glass sheets and which are connected to an electroconductive circuit, also housed between the two sheets of glass, the glazing being characterized in that the two diodes are connected in parallel, in the head-to-tail position, to the electroconductive circuit.
• the expression "in the head-to-roll position" means that the connection of the two diodes to the terminals of the current source is arranged in such a way that one and the same terminal of the current source is connected to the anode of one of the diodes and the cathode of the other diode. This electrical connection results in the two diodes alternately passing current.
• the electronic component is advantageously chosen so that it integrates these two diodes, the first is the light diode and the second is the protection diode.
• the process and the glazing according to the invention have various industrial applications, in particular in the building industry for private or professional use, in the automobile industry, in the shipbuilding industry, in the railway industry and in the aeronautical industry (illustrative, non-exhaustive list).
• the method and glazing according to the invention apply equally to glazing used as internal or external partitions of public or private buildings or vehicles, or also to decorative glazings arranged inside or outside buildings or of vehicles.
• the invention therefore also relates to an installation comprising a laminated glazing unit incorporating an electronic component connected to an electric power source, said laminated glazing unit comprising two superimposed glass sheets with interposition of a thermoplastic interlayer and the electronic component being housed between the two. glass sheets and being connected to the source of electric current through an electroconductive circuit, which is housed between the two sheets of glass; according to the invention, the installation is characterized by the source of electric current controlled by a microcontroller.
• the installation according to the invention comprises, for example, a public or private building whose glazing equips a window or serves as an internal partition or is used as a decorative partition.
• the installation according to the invention may also comprise a land, naval or air motor vehicle in which the glazing constitutes a window or porthole on the outside or an internal partition, possibly decorative.
• the laminated glazing of the installation according to the invention is generally of the type described in WO 2004/062908 (GLAVERBEL).
• the laminated glazing thereof is glazing according to the invention, defined above.
• the installation according to the invention may comprise a single glazing unit.
• the installation according to the invention may comprise several identical or different laminated glazings, incorporating electronic components.
• the installation according to the invention comprises several laminated glazing units incorporating each of the electronic components, the installation may comprise a single source of electric current connected to all the glazings or several sources of electric current which are each connected to a separate glazing.
• Figure 1 shows schematically a particular embodiment of the installation according to the invention
• FIG 2 is a diagram of a detail of a glazing according to the invention
• Figure 3 shows a detail of another glazing according to the invention.
• the installation shown diagrammatically in FIG. 1 comprises a laminated glazing unit which has been made as follows.
• An electroconductive layer 6 (conductivity of about 2 ⁇ / square) was deposited on a sheet 2 of clear soda-lime glass 2.1 mm thick, intended to be the outer glass sheet of the glazing.
• the conductive layer 6 is laser removed on thin strips or grooves 4 about 0.15 mm wide, so as to delimit conductive tracks 6a, 6b.
• the electronic component which in this case is an LED, is bonded on either side of a thin strip 4 with a conductive adhesive, so that its electrodes are in electrical contact with the electrically conductive strips 6a and 6b.
• Typical conductive adhesives are, for example, silver adhesives.
• the glass sheet 2 is then laminated, facing inwards, with a second sheet of clear soda-lime glass in the traditional manner, by interposing a double thermoplastic sheet 12.
• the glue used to fix the LEDs 8 to the strips 6a and 6b must be chosen for its resistance to the high temperatures and pressures required to produce the laminated glazing. It must also be chosen according to its viscosity so as to prevent it from spreading in the insulating strip 4 during laminating of the laminate.
• the electroconductive strips 6a and 6b are connected to a source of electric current 11 which, according to the invention, is controlled by a microcontroller 13.
• the luminous flux emitted by the LEDs 8 is indicated by the arrow. It is oriented towards the inner glass sheet 10 of the glazing.
• the glazing unit comprises an LED consisting of two diodes 8a and 8b which are connected in parallel to the two electroconductive strips 6a and 6b.
• the two diodes 8a and 8b are arranged head to tail inside the LED 8, so that the anode of the diode 8a and the cathode of the diode 8b are connected to the electroconductive strip 6a, while the anode of the diode 8b and the cathode of the diode 8a are connected to the electroconductive strip 6b.
• the diodes 8a and 8b pass the current alternately, in phase the source of electric current.
• each LED has diodes 8a and 8b disposed head-bêche.
• the diodes 8a and the diodes 8b alternately pass the current in phase with the source of electric current.
• LEDs light-emitting diodes
• the assembly thus produced was autoclaved for a cycle of 120 minutes with a minimum of 35 minutes at high temperature and pressure (125 ° C and 8 bar).
• the LEDs are arranged in series. This embodiment has the advantage of providing a single totally invisible connection circuit even when using two sheets of clear glass.
• the two aforementioned electro-conductive zones have been respectively connected to the two terminals of a direct current source, so that the anodes of the LEDs are connected to the positive terminal of the current source, the cathodes being connected to the negative terminal of said current source.
• the glazing was subjected to an aging test under the following conditions:
• Example 1 The test of Example 1 was repeated using an electric current source controlled by a microcontroller.

Landscapes

• Joining Of Glass To Other Materials (AREA)
• Laminated Bodies (AREA)
• Lining Or Joining Of Plastics Or The Like (AREA)
• Structures For Mounting Electric Components On Printed Circuit Boards (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=53496384

Family Applications (2)

Family Applications Before (1)

Country Status (6)

Families Citing this family (2)

Family Cites Families (14)

• 2015
  • 2015-06-01 EP EP15170141.4A patent/EP3100853A1/de not_active Withdrawn
• 2016
  • 2016-05-17 US US15/578,390 patent/US10493728B2/en active Active
  • 2016-05-17 JP JP2017561825A patent/JP6734300B2/ja active Active
  • 2016-05-17 EP EP16724360.9A patent/EP3302965A1/de active Pending
  • 2016-05-17 WO PCT/EP2016/060973 patent/WO2016192968A1/fr active Application Filing
  • 2016-05-17 CN CN201680031352.0A patent/CN107690387B/zh active Active
  • 2016-05-17 EA EA201792452A patent/EA036760B1/ru not_active IP Right Cessation

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