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WO2024179875A1 - Unité de vitrage comprenant un composant électronique - Google Patents

Unité de vitrage comprenant un composant électronique Download PDF

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Publication number
WO2024179875A1
WO2024179875A1 PCT/EP2024/054207 EP2024054207W WO2024179875A1 WO 2024179875 A1 WO2024179875 A1 WO 2024179875A1 EP 2024054207 W EP2024054207 W EP 2024054207W WO 2024179875 A1 WO2024179875 A1 WO 2024179875A1
Authority
WO
WIPO (PCT)
Prior art keywords
pane
main surface
glazing unit
cavity
electronic component
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.)
Pending
Application number
PCT/EP2024/054207
Other languages
German (de)
English (en)
Inventor
Julian GREVERATH
Sebastian ARENDT
Siyamak MEMAR JAVID
Semjon MOORAJ
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 Glass France SAS
Compagnie de Saint Gobain SA
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 WO2024179875A1 publication Critical patent/WO2024179875A1/fr
Anticipated expiration legal-status Critical
Pending legal-status Critical Current

Links

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
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • 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
    • B32B1/00—Layered products having a non-planar shape
    • 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
    • B32B17/10541—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
    • B32B17/10807—Making laminated safety glass or glazing; Apparatus therefor
    • B32B17/10899—Making laminated safety glass or glazing; Apparatus therefor by introducing interlayers of synthetic resin
    • 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
    • B32B17/10807—Making laminated safety glass or glazing; Apparatus therefor
    • B32B17/10899—Making laminated safety glass or glazing; Apparatus therefor by introducing interlayers of synthetic resin
    • B32B17/10935—Making laminated safety glass or glazing; Apparatus therefor by introducing interlayers of synthetic resin as a preformed layer, e.g. formed by extrusion
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • 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
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
    • B32B3/08—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts
    • 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
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/28—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer comprising a deformed thin sheet, i.e. the layer having its entire thickness deformed out of the plane, e.g. corrugated, crumpled
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
    • B60Q3/20—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors for lighting specific fittings of passenger or driving compartments; mounted on specific fittings of passenger or driving compartments
    • B60Q3/208—Sun roofs; Windows
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/412—Transparent
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/418—Refractive
    • 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
    • B32B2605/00—Vehicles
    • B32B2605/08—Cars

Definitions

  • the invention relates to a glazing unit with an electronic component, as well as a vehicle with such a glazing unit and a method for producing such a glazing unit.
  • Vehicles often include a composite pane used as a roof pane or windshield, which consists of two panes of glass bonded together by a thermoplastic intermediate layer.
  • the individual panes of a composite pane are bent congruently to achieve a uniform bend.
  • One or more thermoplastic composite films are inserted between the congruently bent panes, which melt when the arrangement is laminated and produce the thermoplastic intermediate layer with a constant thickness.
  • WO 2014/060409 A1 or WO 2015/095288 A2 disclose the coupling of light into a glass pane via a side surface. However, the point-based coupling of light makes it difficult to achieve homogeneous illumination of the entire pane.
  • WO 2004/106056 A1 discloses a method for producing composite elements with two glass panes and an insert between them.
  • the insert is not full-surface in relation to the outer elements. It is perforated, for example.
  • a transparent, thermoplastic film layer connects the outer elements to the insert. By heating the film layer to a softening temperature, the insert is pressed together with both glass panes, whereby the holes in the insert are degassed and filled with the film material.
  • WO 2019/105855 A1 relates to a composite pane with an integrated electrical attachment.
  • the composite pane comprises an inner pane and an outer pane as well as a thermoplastic intermediate layer that connects the two panes together.
  • the inner pane has a recess into which the attachment is inserted and is located completely within the composite pane.
  • the object of the present invention is to provide an improved glazing unit with an electronic component, which allows an improved integration of an electronic component.
  • the invention therefore relates to a glazing unit comprising at least: a first pane with a first main surface and a second main surface, a second pane with a first main surface and a second main surface, wherein the first pane is connected to the second pane via an intermediate layer to form a composite pane, and an electronic component.
  • the second pane has a cavity with at least one opening directed towards the intermediate layer.
  • the electronic component is arranged in the cavity, the cavity comprising a filling made of an optically transparent, cured adhesive and the cavity being arranged at a distance of at least 100 mm from a peripheral edge of the second pane.
  • This allows electronic components to be securely integrated into the composite pane and at the same time arranged centrally in the composite pane. Because the cavity is filled with a curable, liquid adhesive during production, the electronic component can be embedded in the adhesive and stored securely.
  • the cavity is preferably arranged in a central section, in particular in the middle of the second pane. If the electronic component is a light source or a sensor, this can achieve significantly better room illumination or detection range of the sensor than positioning it at the edge of the composite pane.
  • the spacing is in particular chosen such that the electronic component is placed as centrally as possible in relation to the covered (vehicle) interior in order to achieve optimal room coverage and thus optimal room illumination or monitoring.
  • the second main surface of the first pane and the first main surface of the second pane face each other and are not arranged parallel to each other at least in sections. The distance between the second main surface of the first pane and the first main surface of the second pane is not constant.
  • the second pane has a first region which has a greater curvature than the curvature of the rest of the second pane.
  • the second pane has the first region in which the distance between the second main surface of the first pane and the first main surface of the second pane is greater than in a second region of the second pane.
  • the distance between the first pane and the second pane in the region of the cavity, i.e. within the first region, can be constant in sections.
  • the transition from the first region to the second region can be stepped. Glazing of this type, in particular vehicle windows, is curved three-dimensionally and tends towards ever greater bends in the sense of a striking, visually appealing design.
  • the second pane can have a projection in the first region, so that when the composite pane is mounted, the cavity is formed by the projection.
  • the second main surface of the first pane and the first main surface of the second pane run asymmetrically, at least in sections.
  • the second main surface of the first pane and the first main surface of the second pane extend symmetrically.
  • the glazing unit comprises at least one electronic component.
  • the at least one electronic component can be a light source, a radar, a sensor, a lidar sensor, an LED module (LED light), OLED modules or a strip-shaped LED module (LED strip).
  • Sensors can be, for example, rain sensors, daylight sensors, backlight sensors, ultrasonic sensors, pressure and temperature sensors, antennas, optical cameras and radar sensors.
  • the components mentioned can also be used in combination.
  • LED modules as a light source are particularly bright and efficient.
  • the electronic component is connected to a power source via an electrical connection, wherein the electrical connection is optically inconspicuous or wireless.
  • the electronic component requires an electrical and/or communicative connection with the Connections running along the edge of the window to a power source or to a control unit. Due to the optically unobtrusive design of at least this electrical connection according to the invention, it is advantageously possible to significantly improve the sense of space conveyed to the occupants by the glazing unit as a roof pane, although the electronic component preferably occupies a central position above the interior. Covering the supply lines, which has previously been common for sensors arranged in the edge area of the window and is visually disturbing, for example by means of a black print extending to the edge of the window, can be dispensed with.
  • the electrical connection is formed by an electrically conductive transparent layer, by conductive wires, by a printed current conductor or by a cable connection to a power source.
  • optically inconspicuous electrical connection All of the above-mentioned preferred designs of the optically inconspicuous electrical connection are almost or completely transparent and thus meet the high requirements of the automotive industry for the largest possible transparent surface of a roof pane.
  • the term "optically inconspicuous” can also include “barely perceptible to the human eye”.
  • the optically inconspicuous electrical connection does not, or only very slightly, impede visibility through the composite pane. It therefore offers an excellent opportunity to securely establish the power connection, but also, if required, the communicative connection to a control unit (electronic control unit) or an alarm output device, without disturbing the distance - which is often quite large due to the distance of the component (e.g. light source or sensor) from the edge of the composite pane - with a cover or black print and reducing the occupants' sense of space.
  • the component e.g. light source or sensor
  • the electrical power supply of the electronic component can be provided via an electrically conductive layer on one of the pane surfaces in a preferred embodiment of the invention.
  • An optically disturbing electrical supply line in the form of cables can be dispensed with.
  • Electrically conductive layers are often already used in motor vehicle windows in the form of heatable layers or so-called low-E (low emissivity) layers, which prevent the vehicle interior from heating up too much.
  • the electrically conductive layer it can be applied to the second main surface of the first pane, the first or second main surface of the second pane. Examples of layer structures that have both high electrical conductivity and an infrared-reflecting effect are known to the person skilled in the art.
  • any electrically conductive layer is also suitable for electrically contacting the electronic component with the electrical connection.
  • the electrically conductive layer is used to form conductors via which two voltage poles are connected to the electronic component.
  • Methods for structuring electrically conductive layers are well known to those skilled in the art. These include, for example, etching or laser processes.
  • the current conductors are particularly preferably produced by laser separation lines in the electrically conductive layer.
  • connection elements can be done, for example, by means of connection elements applied to the electrically conductive layer.
  • a foil-like connection element can also be inserted into the layer stack in the area of the cavity.
  • This connection element has two electrical contacts on the surface facing the electrically conductive layer, which are placed on the corresponding current conductors of the electrically conductive layer.
  • the area of the foil-like connection element surrounding the electrical contacts can, for example, be provided with an adhesive that fixes the connection element to the layer.
  • the part of the foil-like connection element onto which the electronic component is to be placed is also provided with contacts.
  • the foil-like connection element preferably has a metallic surface for this purpose.
  • the electrical connection can be made by conductive wires.
  • the necessary transparency or the visually inconspicuous design which is also the subject of the present invention, can be achieved in this variant by making the wires very thin and/or serpentine.
  • a well-known example in vehicle window manufacturing are wires that are used as heating wires in windshields. They usually have a thickness of around 20 pm and are practically invisible when viewed through.
  • several wires can be provided for a power line and/or communication connection. Since the wires are so thin that the occupants can hardly see them visually, a large number of wires can serve both as an electrical connection and for communication and data transmission without taking up much space, so that in this way redundancy for the power line or for data transmission can be provided without further optical impairment.
  • the electrical connection can be made by a printed current conductor to a power source.
  • a printed current conductor in particular Conductive structures made of metallic material are generally known to those skilled in the art in the field of manufacturing vehicle windows and are used in a variety of ways, for example as busbars, heating conductors, antenna structures or alarm loops. Exemplary printing methods are described in WO 2019/206592 A1 and the citations cited therein. For the purposes of the present invention, in particular those printing methods for applying a printed current conductor should be selected which produce a comparatively small layer thickness of the conductive material. Silver can be selected as the preferred conductive material which can easily be printed in a small layer thickness in the range of micrometers.
  • the electrical connection may be established by a cable connection to a power source.
  • the refractive index of the filling and the refractive index of the first pane are the same.
  • the light source is intended to illuminate an interior space adjacent to the second pane.
  • the light source is intended to generate light that can be coupled into the second pane, the light source being arranged in the filling.
  • the cavity has the filling made of an optically transparent, cured adhesive. The light emitted by the light source is provided via the filling for coupling into the second pane and for illuminating an adjacent room. Since the refractive index of the optically transparent, cured adhesive is the same as the refractive index of the second pane, the light can be coupled into the pane with little or no loss of light intensity.
  • the light is transmitted almost completely at the transition from the filling of the cavity to the second pane and is not refracted or reflected.
  • the glazing unit according to the invention surprisingly has improved light coupling from the light source to the second pane without negatively affecting other optical properties of the second pane.
  • the arrangement of the light source in the cavity also prevents the need for complex drilling in the second pane.
  • the electronic component is a light source for illuminating an interior space.
  • the light source emits light in a direction that is orthogonal to the second pane.
  • a refractive index of the optically transparent, cured adhesive and a refractive index the second pane is the same or almost the same.
  • the refractive index of the second pane can be 1.51 for example at a wavelength of 550 nm. Refractive indices are generally given in relation to a wavelength of 550 nm within the scope of the present invention.
  • the refractive index is generally independent of the measuring method; it can be determined using ellipsometry, for example. Ellipsometers are commercially available. When determining the refractive index of the filling, the same measuring method is used as when determining the refractive index of the second pane.
  • An optically transparent adhesive is curable, i.e. it can be irreversibly cured. It is typically a plastic that is cured into a polymer-crosslinked state. This is a key difference between a curable adhesive and a thermoplastic, which is also optically transparent but can be reversibly softened by applying heat. In contrast, a curable adhesive can no longer be made flowable once it has cured. The optically transparent, curable adhesive is therefore not a non-curable thermoplastic.
  • the curable, optically transparent adhesive can be cured by heat, exposure to electromagnetic radiation, preferably UV radiation, and/or chemically. Curing is preferably achieved by applying heat or increasing the temperature and/or UV radiation.
  • the transparent adhesive is based on silicone, for example.
  • Optically transparent adhesives are known in particular under the acronym LOCA (liquid optically clear adhesive). These are often used in touch-sensitive displays, for example to firmly connect them to an LCD display or to firmly connect plastic covers to the touch-sensitive displays. After application, the adhesive is often hardened by UV radiation.
  • the curable optically transparent adhesive can contain or consist of, for example, polyurethane (PU), polyacrylate, polyacetate resin, casting resin, epoxy resin, acrylic or a copolymer or mixture thereof.
  • the optically transparent adhesive advantageously consists of a casting resin, in particular based on polyurethane or silicone.
  • Transparent in the sense of the invention is understood to mean an object, in particular an optically transparent adhesive, a light coupling means and/or a transparent body (for example a pane), which has a transmission in the visible spectral range of greater than 20%, preferably greater than 50%, particularly preferably greater than 70%, in particular greater than 85%.
  • all electrically insulating substrates that are thermally and chemically stable as well as dimensionally stable under the conditions of manufacture and use of the glazing unit according to the invention are suitable as the first pane and second pane.
  • the first pane and/or the second pane preferably contain or consist of glass, particularly preferably flat glass, very particularly preferably float glass, such as soda-lime glass, borosilicate glass or quartz 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 first pane and/or the second pane are preferably transparent, in particular for use of the panes as a front pane (also referred to as a windshield) or rear pane of a vehicle or other uses where high light transmission is desired.
  • a pane is then understood to be transparent in the sense of the invention if it has a transmission in the visible spectral range of greater than 70%.
  • at least the first pane and preferably also the second pane are made of clear glass.
  • the transmission can be much lower, for example greater than 5%.
  • the second pane and/or the intermediate layer can be tinted or colored.
  • the thickness of the first pane and/or the second pane can vary widely and can thus be excellently adapted to the requirements of the individual case.
  • Standard thicknesses of 1.0 mm to 25 mm are preferably used, preferably from 1.4 mm to 2.5 mm for vehicle glass and preferably from 4 mm to 25 mm for furniture, equipment and buildings.
  • the size of the panes can vary widely and depends on the size of the use according to the invention.
  • the first pane and second pane have areas of 200 cm 2 to 20 m 2 , which are common in vehicle construction and architecture, for example.
  • the panes are preferably planar or slightly or strongly curved in one or more directions of the room.
  • the first pane and the second pane are connected to one another by at least one intermediate layer.
  • the intermediate layer is preferably transparent or tinted or colored.
  • the intermediate layer preferably contains at least one plastic, preferably polyvinyl butyral (PVB), ethylene vinyl acetate (EVA) and/or polyethylene terephthalate (PET), or consists thereof.
  • the intermediate layer can also contain, for example, polyurethane (PU), polypropylene (PP), polyacrylate, polyethylene (PE), polycarbonate (PC), polymethyl methacrylate, polyvinyl chloride, polyacetate resin, casting resins, acrylates, fluorinated ethylene propylene, polyvinyl fluoride and/or ethylene tetrafluoroethylene, or copolymers or mixtures thereof.
  • the intermediate layer can be formed by one or more films arranged one above the other, the thickness of a film preferably being from 0.025 mm to 1 mm, typically 0.38 mm or 0.76 mm.
  • the intermediate layers can preferably be thermoplastic and, after lamination, bond the first pane, the second pane and any other intermediate layers together. Particularly advantageous are so-called acoustically dampening intermediate layers, which preferably consist of three layers of PVB, with the middle layer being softer than the two outer layers.
  • the intermediate layer can be formed solely from the (polymeric) filling in the region of the cavity.
  • the intermediate layer is preferably designed as a thermoplastic layer (in particular formed from a thermoplastic film), which, however, does not extend into the region of the cavity but ends in front of it.
  • a thermoplastic layer can optionally also be present in the region of the cavity. It is thus possible for at least one thermoplastic layer (in particular formed from at least one thermoplastic film) to be arranged over the entire surface between the first pane and the second pane, which forms the intermediate layer alone in the regions in which the panes run symmetrically and which rests against the first pane in the region of the cavity, with the filling being arranged between the at least one thermoplastic layer and the second pane.
  • the intermediate layer can also be a functional intermediate layer, in particular an intermediate layer that reflects infrared radiation, an intermediate layer that absorbs infrared radiation, an intermediate layer that absorbs UV radiation, an intermediate layer that is colored at least in sections and/or an intermediate layer that is tinted at least in sections.
  • the thermoplastic intermediate layer can also be a band filter film.
  • the glazing unit according to the invention is intended, for example, to protect the interior of an opening, for example of a vehicle or a building, from from the external environment, the first pane can face the interior or the external environment.
  • the first pane and/or the second pane may have other suitable layers known per se, for example anti-reflective coatings, non-stick coatings, anti-scratch coatings, photocatalytic coatings or
  • the second pane can be provided with a low-E coating on its second main surface.
  • Low-E coatings are emissivity-reducing coatings and reflect IR radiation, in particular the thermal radiation, which emanates from a heated pane of glass. The penetration of thermal radiation into the vehicle interior is reduced, which also results in less heating of the interior. In winter, when outside temperatures are low, the radiation of heat from the interior to the outside environment is prevented.
  • Transparent emissivity-reducing coatings can, for example, contain reflective layers based on indium tin oxide (ITO) or other transparent conductive oxides (TCO). When designed as a roof pane, these ensure that the thermal radiation is reflected into the interior of the vehicle, which significantly increases comfort for the vehicle occupants.
  • the low-E coating preferably does not contain any silver layers and can therefore be arranged on the first main surface of the first pane without causing problems with corrosion.
  • the glazing unit can comprise further functional elements, in particular electronically controllable optical elements, for example PDLC elements, electrochromic elements, photovoltaic cells or the like, which are typically arranged between the first pane and the second pane.
  • electronically controllable optical elements for example PDLC elements, electrochromic elements, photovoltaic cells or the like, which are typically arranged between the first pane and the second pane.
  • a further aspect of the invention comprises a vehicle, in particular a passenger car, with a glazing unit according to the invention.
  • a further aspect of the invention comprises methods for producing a glazing unit according to the invention comprising at least:
  • first pane Providing a first pane, a second pane and a particularly thermoplastic intermediate layer, wherein the second pane has a cavity with at least one opening directed towards the intermediate layer, Filling the cavity with a filling and at least one electronic component,
  • the filling has an optically transparent, curable adhesive, whereby the optically transparent, curable adhesive can be cured after filling or after the two panes have been connected.
  • the curable, optically transparent adhesive can be cured by heat, exposure to electromagnetic radiation, preferably UV radiation, and/or chemically. Curing preferably takes place by supplying heat or increasing the temperature and/or UV radiation.
  • the first pane and a second pane are connected to one another by at least one intermediate layer to form a composite pane.
  • the first pane and the second pane are laminated to one another via the intermediate layer, for example by autoclave processes, vacuum bag processes, vacuum ring processes, calender processes, vacuum laminators or combinations thereof.
  • the panes are usually connected under the influence of heat, vacuum and/or pressure.
  • thermoplastic intermediate layer is preferably provided as a film.
  • Figure 1 is a plan view of an embodiment of the inventive
  • Figure 2 is a schematic cross-sectional view of the inventive
  • Figure 3 is a flow chart of a method according to the invention.
  • Figure 1 shows a plan view of a glazing unit 10.
  • the glazing unit 10 is equipped with an electronic component 5 using the example of a composite pane 101.
  • the composite pane 101 has a three-dimensional bend.
  • the composite pane 101 is preferably bent in one or more directions of space, as is usual for motor vehicle windows, for example, with typical radii of curvature being in the range from about 10 cm to about 40 m.
  • the electronic component 5 is a light source, in particular an LED module.
  • the electrical component 5 can comprise a radar, a sensor, a camera or a strip-shaped LED module.
  • the composite pane 101 can be, for example, automotive glazing (e.g. windshield or roof pane), building glazing or a component of a piece of furniture.
  • the glazing unit 10 can also be part of an insulating glazing and can serve, for example, as an outer or inner pane in a window of a building.
  • the glazing unit 10 can be installed in an interior and can serve, for example, as glazing in a conference room.
  • the glazing unit 10 comprises a first pane 1 which is connected to a second pane 2 via an intermediate layer 3.
  • the second pane 2 has, at least in sections, a greater curvature K than the curvature of the rest of the second pane 2.
  • the remaining area of the second pane 2 forms a second area B2 in which the second pane 2 has been bent less than in the first area B1.
  • a greater curvature basically corresponds to a smaller radius of curvature of the pane.
  • the strong curvature can form a projection 15 in which the electronic component 5 is arranged.
  • the first area B1 is arranged in a central section, in particular in the middle, at a distance of at least 100 mm from a circumferential pane edge 17 of the second pane 2.
  • the transition from the second area B2 to the first area B1 is stepped.
  • the second pane 2 has the projection 15 in the first area B1.
  • a cavity 7 is formed by the projection.
  • the cavity 7 is open towards the intermediate layer 3, so that the cavity 7 has an opening 9 there.
  • FIG. 2 shows a cross-sectional view of the glazing unit 10 along the section line AA'.
  • the glazing unit 10 comprises the first pane 1 with a first main surface I and a second main surface II.
  • the first pane 1 is connected to the second pane 2 via an intermediate layer 3 to form the composite pane 101.
  • the first pane 1, the intermediate layer 3 and the second pane 2 were connected to one another by lamination, in particular autoclaving.
  • the second pane 2 has a first main surface III and a second main surface VI opposite the first main surface III.
  • the first pane 1 and the second pane 2 consist, for example, of soda-lime glass.
  • the intermediate layer 3 is thermoplastic and is made, for example, from a 0.76 mm thick PVB film.
  • the composite pane 101 is delimited by four circumferential side surfaces 13.
  • the glazing unit 10 comprises the electronic component 5, which is arranged in the cavity 7 of the second pane 2.
  • the composite pane 101 has a first region B1 in which the second main surface II of the first pane 1 and the first main surface III of the second pane 2 do not run parallel to one another.
  • the cavity 7 is formed between the second main surface II of the first pane 1 and the first main surface III of the second pane 2.
  • the cavity 7 is an extended space between the panes.
  • the distance between the second main surface II of the first pane 1 and the first main surface III of the second pane 2 is not constant. As a result, the cavity 7 between the first Discs 1 and the second disc 2 are widened so that the electronic component 5 can be safely integrated into the composite disc 101.
  • the cavity 7 can have any basic geometric shape, such as the shape of a circle, quadrilateral, triangle, square, rectangle, pentagon or any other regular or irregular polygon.
  • the cavity 7 has an opening 9 directed towards the intermediate layer 3 and a filling 11 made of an optically transparent, hardened adhesive.
  • the filling 11 can be a liquid polymer filling, in particular a hardened, optically transparent adhesive.
  • the adhesive is filled into the cavity 7 in liquid or flowable form and then hardened. Because the cavity 7 is filled with a hardenable, liquid adhesive during production, the electronic component 5 can be embedded in the adhesive and stored safely. These are great advantages of the present invention.
  • the filling 11 is connected directly to the second pane 2 and via the intermediate layer 3 to the first pane 1.
  • the cured optically transparent adhesive can contain or consist of, for example, polyurethane (PU), polyacrylate, polyacetate resin, casting resin, epoxy resin, acrylic or a copolymer or mixture thereof.
  • the optically transparent adhesive advantageously consists of a casting resin, in particular based on polyurethane or silicone.
  • the electronic component 5 is a light source that is located completely within the filling 11.
  • the light source is an LED module (LED light).
  • the light source can comprise one or more light-emitting diodes (LED, LED light).
  • the electronic component 5 can also comprise an organic light-emitting diode (OLED), a display device or a high-performance LED.
  • the light 21 of the light source is directed in the direction of the second pane 2 orthogonal to the main surface III.
  • the refractive index of the filling 11 and the refractive index of the second pane 2 are the same or almost the same.
  • the refractive index of the second pane 2 can be 1.51, for example, at a wavelength of 550 nm.
  • the cavity 7 with the electronic component 5 is positioned at a distance from the edge of the second pane 2.
  • the distance is at least 100 mm, for example 200 mm or 500 mm.
  • the spacing is chosen in particular such that the light source or sensor is placed as centrally as possible in relation to the (vehicle) interior to be covered in order to ensure optimal To achieve room coverage and thus optimal room illumination or monitoring.
  • the dimensions of the first pane 1 or the second pane 2 can be, for example, 1.4 m x 1.5 m.
  • the first pane 1 and the second pane 2 are made of, for example, soda-lime glass.
  • the thickness of the first pane 1 and that of the second pane is, for example, 3 mm, 2.1 mm or 1.6 mm. It is understood that the thicknesses of the first pane 1 and the second pane 2 can be adapted to the respective use.
  • the first pane 1 and/or the second pane 2 can, for example, contain tempered, partially tempered or non-tempered glass.
  • the first pane 1 and/or the second pane 2 can be made of a plastic, for example polycarbonate.
  • the first pane 1, the second pane 2 and the thermoplastic intermediate layer 3 can be clear and colorless, but also tinted or colored.
  • the composite pane 101 can also be provided with an additional function by the thermoplastic intermediate layer 3 having functional inclusions, for example inclusions with IR-absorbing, UV-absorbing, coloring or acoustic properties.
  • the glazing unit 10 according to the invention in vehicles, for example as a roof pane, it is advantageous to implement additional functions in order to reduce the negative effects of weather influences such as strong sunlight or ice formation.
  • so-called low-E coatings and/or heatable coatings can be applied to the inside of the inner pane or the outer pane.
  • Suitable material compositions of an electrically heatable coating, which also functions as a low-E coating, can be found, for example, in WO 2013/104439 and WO 2013/104438.
  • Figure 3 shows a flow chart of a method according to the invention for producing the glazing unit 10 according to the invention.
  • the method comprises at least the following method steps: a) providing the first pane 1, the second pane 2 and the in particular thermoplastic intermediate layer 3, wherein the second pane 2 has the cavity 7 with at least one opening 9 directed towards the intermediate layer, b) filling the cavity 7 with the filling 11, which has the optically transparent, curable adhesive, c) arranging at least one electronic component 5 in the filling 11 of the cavity 7, d) connecting the first pane 1 and the second pane 2 via the thermoplastic intermediate layer 3, so that the second main surface II of the first pane 1 and the first main surface III of the second pane 2 face the thermoplastic intermediate layer 3, wherein curing of the optically transparent, curable adhesive takes place after step c) or after step d).
  • first pane 1 and the second pane 2 are bent before they are joined to form the composite pane 101.
  • the bending of the first pane 1 and the second pane 2 takes place at a temperature of, for example, 500°C to 700°C, wherein the panes are not bent congruently in at least the first region B1 of the second pane 2. This creates the cavity 7 between the panes.
  • the first pane 1 and the second pane 2 are bent separately from one another in at least one pane section.
  • additional components 5 can be inserted into the cavity 7.
  • step d) the first pane 1, a thermoplastic composite film as intermediate layer 3 and the second pane 2 are arranged to form a layer stack.
  • the layer stack is then laminated to form the composite pane 101.
  • the glazing unit according to the invention with the electronic component has the advantage over glazing according to the prior art that the electronic component is protected within the glazing unit and external influences do not have a negative effect on the electronic component.
  • a component that is usually attached to the outside of the composite pane can be dispensed with. In comparison to a component that is attached to the outside of the glazing, the embedded component does not interfere with the handling of the glazing.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Casings For Electric Apparatus (AREA)

Abstract

La présente invention concerne une unité de vitrage (10) comprenant au moins : • - une première vitre (1) ayant une première surface principale (I) et une seconde surface principale (II), • - une seconde vitre (2) ayant une première surface principale (III) et une seconde surface principale (IV), la première vitre (1) étant reliée à la seconde vitre (2) par l'intermédiaire d'une couche intermédiaire (3) pour former une vitre composite (101), • - un composant électronique (5), la seconde vitre (2) ayant une cavité (7) avec au moins une ouverture (9) dirigée vers la couche intermédiaire, le composant électronique (5) étant agencé dans la cavité (7), la cavité (7) ayant une garniture (11) constituée d'un adhésif durci optiquement transparent et la cavité (7) étant agencée à une distance d'au moins 100 mm d'un bord de vitre périphérique (17) de la seconde vitre (2), et la seconde surface principale (II) de la première vitre (1) et la première surface principale (III) de la seconde vitre (2) se faisant face et s'étendant au moins en partie non parallèlement l'une à l'autre.
PCT/EP2024/054207 2023-02-28 2024-02-20 Unité de vitrage comprenant un composant électronique Pending WO2024179875A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP23159089 2023-02-28
EP23159089.4 2023-02-28

Publications (1)

Publication Number Publication Date
WO2024179875A1 true WO2024179875A1 (fr) 2024-09-06

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DE (1) DE202024002550U1 (fr)
WO (1) WO2024179875A1 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004106056A1 (fr) 2003-05-28 2004-12-09 Döppner Bauelemente GmbH & Co. KG Procede et dispositif de production d'elements composites, et element composite correspondant
WO2013104439A1 (fr) 2012-01-10 2013-07-18 Saint-Gobain Glass France Disque transparent avec revêtement conducteur électrique
WO2013104438A1 (fr) 2012-01-10 2013-07-18 Saint-Gobain Glass France Disque transparent avec revêtement conducteur électrique
WO2014060409A1 (fr) 2012-10-17 2014-04-24 Webasto SE Vitrage de véhicule
WO2015095288A2 (fr) 2013-12-19 2015-06-25 Corning Incorporated Surfaces texturées pour applications d'affichage
WO2019105855A1 (fr) 2017-11-30 2019-06-06 Saint-Gobain Glass France Disque composite muni d'un composant électrique intégré
WO2019206592A1 (fr) 2018-04-25 2019-10-31 Saint-Gobain Glass France Procédé d'impression d'un revêtement structuré en argent présentant une intensité maximale admissible de courant améliorée
DE202021101147U1 (de) * 2021-03-08 2021-03-12 Saint-Gobain Sekurit Deutschland Gmbh & Co. Kg Verbundscheibe mit zumindest abschnittsweise nicht zueinander parallel verlaufender Innenscheibe und Außenscheibe

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004106056A1 (fr) 2003-05-28 2004-12-09 Döppner Bauelemente GmbH & Co. KG Procede et dispositif de production d'elements composites, et element composite correspondant
WO2013104439A1 (fr) 2012-01-10 2013-07-18 Saint-Gobain Glass France Disque transparent avec revêtement conducteur électrique
WO2013104438A1 (fr) 2012-01-10 2013-07-18 Saint-Gobain Glass France Disque transparent avec revêtement conducteur électrique
WO2014060409A1 (fr) 2012-10-17 2014-04-24 Webasto SE Vitrage de véhicule
WO2015095288A2 (fr) 2013-12-19 2015-06-25 Corning Incorporated Surfaces texturées pour applications d'affichage
WO2019105855A1 (fr) 2017-11-30 2019-06-06 Saint-Gobain Glass France Disque composite muni d'un composant électrique intégré
WO2019206592A1 (fr) 2018-04-25 2019-10-31 Saint-Gobain Glass France Procédé d'impression d'un revêtement structuré en argent présentant une intensité maximale admissible de courant améliorée
DE202021101147U1 (de) * 2021-03-08 2021-03-12 Saint-Gobain Sekurit Deutschland Gmbh & Co. Kg Verbundscheibe mit zumindest abschnittsweise nicht zueinander parallel verlaufender Innenscheibe und Außenscheibe

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