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WO2025067838A1 - Vitre de toit de véhicule à élément de commutation caché intégré permettant d'ouvrir et de fermer la portière - Google Patents

Vitre de toit de véhicule à élément de commutation caché intégré permettant d'ouvrir et de fermer la portière Download PDF

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Publication number
WO2025067838A1
WO2025067838A1 PCT/EP2024/074759 EP2024074759W WO2025067838A1 WO 2025067838 A1 WO2025067838 A1 WO 2025067838A1 EP 2024074759 W EP2024074759 W EP 2024074759W WO 2025067838 A1 WO2025067838 A1 WO 2025067838A1
Authority
WO
WIPO (PCT)
Prior art keywords
pane
vehicle roof
switching element
light
roof window
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/EP2024/074759
Other languages
German (de)
English (en)
Inventor
Michele CAPPUCCILLI
Tim Schmitz
Marc DANIELS
Stefan Hertel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Saint Gobain Sekurit France
Original Assignee
Saint Gobain Sekurit 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 Sekurit France filed Critical Saint Gobain Sekurit France
Publication of WO2025067838A1 publication Critical patent/WO2025067838A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

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    • 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
    • B32B2307/416—Reflective
    • 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
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/538—Roughness
    • 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
    • B32B2307/70—Other properties
    • B32B2307/732—Dimensional properties
    • B32B2307/737—Dimensions, e.g. volume or area
    • B32B2307/7375—Linear, e.g. length, distance or width
    • B32B2307/7376—Thickness
    • 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
    • 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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/004—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles
    • G02B6/0043—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles provided on the surface of the light guide

Definitions

  • the invention relates to a vehicle roof window with an integrated invisible switching element for opening and closing the door.
  • a sensor switching element in a composite pane has in common that the sensor switching element is placed in an electrically conductive functional layer. If a sensor switching element is formed in such a functional layer, this generally requires costly stripping of the functional layer using a laser beam to introduce the structuring separating lines, but in any case the introduction of at least one separating line, albeit in a simpler way, such as by an opaque cover print. Furthermore, the sensor switching element is limited to the design of the functional layer. In particular, the sensor switching element must necessarily be formed on the same pane side as the functional layer to be switched.
  • the object of the present invention is to provide a sensor switching element for opening and closing the door(s), which makes it possible to completely dispense with functional door elements.
  • the aim is to provide an arrangement that is as unobtrusive as possible, while also allowing an ergonomic position for the driver during operation.
  • the sensor switching element is to be integrated into an existing window structure in the simplest possible way and independently of an electrically conductive functional layer. This allows for greater freedom in the Combination of a sensor switching element with various other functions of the vehicle roof window.
  • the invention relates to a vehicle roof window comprising a composite pane with an outer pane having an outer side I and an inner side II and an inner pane having an outer side III and an inner side IV, which are connected to one another via a multi-layer thermoplastic intermediate layer, wherein the outer pane has a black print at least in sections in its edge region.
  • an externally operable sensor switching element for opening and closing the vehicle door is arranged in the thermoplastic intermediate layer in the edge region of the vehicle roof window below the black print, that the composite pane comprises at least one other functional element with an electrical connection to the vehicle electrical system and that electrically conductive structures are arranged internally in the composite pane for supplying power to and/or controlling the sensor switching element, wherein the electrically conductive structures are also used by the at least one other functional element.
  • the composite pane of the vehicle roof window according to the invention comprises an outer pane with an outer side I and an inner side II and an inner pane with an outer side III and an inner side IV, which are connected to one another via a thermoplastic intermediate layer.
  • This composite pane is intended to separate the (vehicle) interior from the external environment as a vehicle roof or at least as a significant part of a vehicle roof.
  • the inner pane refers to the pane facing the interior.
  • the outer pane refers to the pane facing the external environment.
  • the intermediate layer serves to connect the two panes, as is usual with composite panes.
  • the outer and inner panes are preferably made of glass. However, they can also be made of plastic.
  • the thickness of the outer and inner panes can vary widely and can be adapted to individual requirements, so that the required dimensions in vehicle construction Safety standards are met.
  • the outer and inner panes preferably have thicknesses of 0.4 mm to 3.5 mm, particularly preferably 1 mm to 2.5 mm.
  • the panes can be clear, tinted, or colored.
  • the thermoplastic intermediate layer contains or consists of at least one thermoplastic material, preferably polyvinyl butyral (PVB), ethylene vinyl acetate (EVA), thermoplastic polyurethane (PU) or mixtures or copolymers or derivatives thereof, particularly preferably polyvinyl butyral (PVB), very particularly preferably polyvinyl butyral (PVB) and additives known to the person skilled in the art, such as plasticizers.
  • PVB polyvinyl butyral
  • EVA ethylene vinyl acetate
  • PU thermoplastic polyurethane
  • the thermoplastic intermediate layer contains at least 60 wt.%, particularly preferably at least 70 wt.%, in particular at least 90 wt.% and, for example, at least 97 wt.% polyvinyl butyral.
  • thermoplastic intermediate layer can be formed by several thermoplastic films arranged one above the other, wherein the thickness of a thermoplastic film is preferably from 0.25 mm to 1 mm, typically 0.38 mm or 0.76 mm.
  • the outer pane has the black print at least in sections, preferably all the way around, in its edge area. "All the way around” in the context of the invention means that the black print surrounds the part of the outer pane intended for viewing in a frame-like manner.
  • the black print runs along the peripheral edge area of the outer pane, which is directly adjacent to the peripheral edge of the outer pane.
  • Suitable materials and methods for forming such a black print are already known.
  • Saint-Gobain Glass France has developed a PVB printing technology in the past, which is described in more detail in patent applications FR2928929, FR2969957, FR2974103, and WG2014020261.
  • This technology consists of applying a compatible ink to the corresponding areas of a PVB interlayer, wherein the ink is, in particular, black. If the black print is applied as a colored ink to a PVB interlayer, the colored area of the PVB interlayer is in direct contact with the inner side II of the outer pane, so that the outer pane is provided with the black print.
  • the colored PVB interlayer is preferably the thermoplastic interlayer.
  • the black print can also be provided as an enamel in the edge area of the outer pane. It essentially serves to visually conceal the areas of the laminated glass that are bonded to the body. At the same time, electrical wiring to various functional layers or switches can be provided in these areas to ensure the wires are not visible and are routed to the required connection areas. In particular, the width of such black printing in the edge area of the laminated glass can vary and be adapted to the vehicle manufacturer's design specifications.
  • a sensor switching element for opening and closing the vehicle door is arranged in the thermoplastic intermediate layer in the edge area of the vehicle roof window below the black print.
  • vehicle door refers to both the passenger doors and the trunk door.
  • the sensor switching element is preferably configured as a switching element for opening and closing the vehicle door.
  • the sensor switching element is provided with conventional electrical connections and terminals and is expediently functionally connected to corresponding control electronics.
  • the switching element thus formed can preferably be designed as a camera, an NFC sensor, a TOF camera, and in particular a capacitive sensor, preferably a touch or proximity sensor.
  • an arrangement of two electrodes generates an electric field through dielectric material.
  • the charge distribution and the resulting electric field are influenced.
  • the change in the electric field can be detected and a switching process triggered.
  • sensor buttons using a line or surface electrode or an arrangement of two coupled electrodes, for example as capacitive sensor buttons. Examples can be found in US 2007/0194216 A1.
  • the capacitance of the surface electrode to ground or the capacitance of the capacitor formed by the two coupled electrodes changes. The change in capacitance is measured via a circuit arrangement or sensor electronics, and when a threshold value is exceeded, a switching signal is triggered.
  • Circuit arrangements for capacitive switches are known, for example, from DE 20 2006 006 192 U1, EP 0 899 882 A1, US 6,452,514 B1 and EP 1515211 A1.
  • Sensor electronics for a capacitive sensor switching element are also known, for example, from DE 20 2005 010 379 U1.
  • the capacitance of the sensor switching element is measured by a capacitance/voltage converter.
  • the sensor switching element is charged to a specified voltage by sensor electronics.
  • the current flow required for charging is measured and converted into a voltage signal.
  • the sensor switching element is then discharged and recharged to the specified voltage.
  • a change in the capacitance of the sensor switching element can be measured by the change in the voltage signal.
  • the capacitance of the sensor switching element to earth changes when a grounded body, such as a person, comes close to it or touches it.
  • the sensor switching element can contain two areas, and the capacitance between the two areas can be measured.
  • the sensor switching element comprises two parallel or concentric conductors with a contact switching section spaced between 0.3 and 1.5 cm, in particular between 0.5 and 1 cm.
  • the conductor spacing must be dimensioned for the reliable implementation of a switching function using a finger or even the thumb of an adult and may, if necessary, also lie outside the range specified here.
  • a change in capacitance can also be detected by a non-oscillating oscillator, which is caused to oscillate by the change in capacitance.
  • an oscillating oscillator can be damped so strongly that its oscillation ceases.
  • Sensor electronics with an oscillator are known from EP 0 899 882 A1.
  • the sensor electronics preferably measures the capacitance of an electrically conductive coating to ground or the capacitance of two or more areas of an electrically conductive coating to each other. If a change in capacitance is detected, the sensor electronics outputs a control signal to control the door's opening or closing circuit by applying a suitable control voltage to the door lock.
  • NFC Near Field Communication
  • RFID Radio Frequency Identification
  • NFC technology enables communication over short distances, which in this case is used to identify the The sensor can be used to control the driver's door and subsequently open and close the door.
  • Contactless data transmission can be carried out, for example, using the driver's smartphone, smartwatch, or key fob.
  • a camera can also be used as a recognition element of the sensor switching element. This makes it possible to identify the driver, for example, using fingerprint or facial recognition. The same applies to a TOF (time-of-flight) camera. It can, for example, recognize gestures in real time and trigger the switching process for opening or closing the door based on these.
  • TOF time-of-flight
  • the sensor switching element is designed as a capacitive touch sensor, which has at least one touch area and at least one supply area.
  • the supply area comprises electrically conductive structures.
  • the touch area is intended to be used by an operator of the sensor switching element by approaching the touch area with a finger or touching it with a fingertip, whereas the supply area serves to connect the touch area to a voltage source, in particular to control electronics.
  • the at least one touch area is preferably larger than the at least one supply area.
  • the sensitivity of the touch sensor can, for example, be configured such that a switching signal is only output when a person touches the inner side IV of the inner pane or the outer side I of the outer pane in the area of the touch area, while touching the pane surfaces above the supply area does not trigger a switching signal.
  • This can be optimized alternatively or additionally by a suitable selection of the geometries of the touch area and supply area.
  • the supply area can have a narrow width and a large length, whereas the contact area is preferably approximately square, round, circular, or drop-shaped, thus providing a suitable touchable surface, for example, for one or more human fingers or a palm.
  • the switch is fully integrated into the panel according to the invention. Therefore, no switch is required as a separate component that must be attached to or in the panel.
  • the sensor switching element is located in the edge area of the vehicle roof window below the black print.
  • "Below the black print” in the sense of the invention means that the black print surrounds the sensor element, completely hidden from the outside.
  • the sensor element is therefore not visually visible when viewed through the vehicle roof window, from the outer window to the inner window.
  • This has various advantages. On the one hand, it supports the requirement of many modern vehicle designs to have as few add-on parts and visible or highlighted elements on the outside of the vehicle body as possible in order to create a minimalist, clear design language or a more monolithic appearance, which is currently perceived as particularly high-quality.
  • the position of the sensor switching element can be concealed to create greater safety. Positioning in the vehicle roof is also advantageous because it allows the driver to maintain an ergonomic, upright posture when operating the device without having to bend their hand.
  • the composite pane comprises at least one other functional element with an electrical connection to the vehicle's electrical system.
  • the other functional element can also be referred to as an additional functional layer.
  • the further functional layer can comprise a light-directing structure, preferably an LED light-directing structure.
  • a light-directing structure preferably an LED light-directing structure.
  • Such a structure allows light emitted by an illuminant, in particular an LED illuminant, to be coupled into the pane.
  • a corresponding illuminant preferably one or more LEDs, is additionally provided.
  • the illuminant is preferably arranged such that the light emitted by it can be coupled into the light-directing structure.
  • the associated illuminant also uses the current-conducting structure, for example in the form of a shared plug.
  • the lighting source is preferably an LED module (LED - light-emitting diode).
  • light-directing structure refers to a light-conducting medium, preferably a glass pane, a polymeric layer, in particular a plastic pane, which is designed such that light can be coupled into the light-directing structure by utilizing the effect of total reflection and is also suitable for guiding coupled-in light.
  • the principle of light guidance or light control by means of total reflection is generally known to those skilled in the art and is described in more detail, for example, in WO2008/047442A1, JP2011086547A, or JP2015043321A.
  • a light source is arranged in the vicinity of the sensor switching element so that the sensor switching element can be illuminated or illuminated by the light source.
  • the illumination is particularly advantageous at night or in the dark, as it enables the button to be found quickly.
  • the light emitted by the light source occurs in the immediate vicinity of the sensor switching element in such a way that the sensor switching element is illuminated for the user.
  • Immediate vicinity here preferably means at a distance of up to 10 cm, more preferably from 0 cm to 3 cm, most preferably 1 cm to 3 cm.
  • the illumination can also be used to give the user feedback on the successful activation of the opening or closing process.
  • the illuminating means is arranged on one of the surfaces of the outer pane or in a recess in the outer pane.
  • the illuminating means can also be arranged on one of the surfaces of the intermediate layer or in a recess in the intermediate layer. Illuminating means arranged in this way have the particular advantage of being particularly bright.
  • the light-directing structure is particularly preferably a light-directing layer.
  • the light-directing layer preferably comprises elements for light scattering. These light-scattering elements are particularly preferably particles, dot matrixes, stickers, deposits, notches, carvings, line matrixes, prints and/or screen prints.
  • the light-scattering elements are preferably formed as particles, dot matrixes, stickers, deposits, notches, carvings, line matrixes, prints and/or screen prints on or in the light-directing structure.
  • the light-directing layer can form a single, continuous surface. Alternatively, the light-directing layer can form two or more separate surfaces.
  • the illumination means is arranged in relation to the light-directing structure in such a way that the light emitted by the illumination means is coupled into the light-directing structure.
  • the light-directing structure has light-scattering elements at least in the region of the sensor switching element. Elements that decouple the coupled light from the light-directing structure and thus also from the vehicle roof window. This indirectly illuminates the sensor switching element using the decoupled light, making it easily visible to the user.
  • electrically conductive structures are arranged internally in the composite pane for supplying power to and/or controlling the sensor switching element.
  • the electrically conductive structure comprises, for example, or consists of at least one flat conductor.
  • the sensor switching element is preferably connected to at least one external control electronics unit via the at least one flat conductor.
  • the control electronics unit is tailored to the respective intended use and, when the sensor switching element is triggered, can trigger a mechanism for opening or closing a door.
  • the sensor switching element can have a connection area for connection to the flat conductor.
  • the flat conductor is connected to the connection area of the sensor switching element via an electrical line connection, preferably by soldering, clamping, or using an electrically conductive adhesive.
  • the flat conductor is preferably connected to the connection area in the edge area of the pane and can be covered, for example, by a frame, other fastening elements, or by a covering screen print.
  • the electrically conductive structures are shared by other functional elements, such as the aforementioned electrically manipulable transmission-regulating layers or a light source (illumination element). They can be connected in a similar manner, for example, to a flat conductor and thus connected, for example, to an external power supply or control electronics. This results in synergies that can primarily be achieved through material savings, simplified production, and resource-efficient shared use of the on-board electronics.
  • the power supply of the vehicle roof window and the connection to the central vehicle control system are provided by external cabling, in particular by one or two plug-in connectors. This not only eliminates the need for individual supply lines to the electrically operated layers or elements, but also significantly simplifies the installation of the Vehicle roof window during vehicle assembly or during repair replacement.
  • a liquid crystal layer with variable light transmission can also be provided in the composite pane according to the invention.
  • the transmissive properties of the coating can be electrically controlled. Examples include the well-known PDLC (polymer dispersed liquid crystal) functional layers. Alternatively, SPD (suspended particle device), electrochromic, or electroluminescent layers can also be present with the same function.
  • thermoplastic intermediate layer in a further embodiment of the invention, a liquid crystal layer with variable light transmission is arranged in the thermoplastic intermediate layer in such a way that it is electrically insulated from the sensor switching element by a region of the thermoplastic intermediate layer.
  • thermoplastic intermediate layer Due to the insulating effect of the thermoplastic intermediate layer, it is sufficient to maintain an easily determined minimum distance between the liquid crystal layer and the sensor switching element. At the same time, supply lines to the functional elements or the functional layer can still be shared.
  • the vehicle roof window has one or more additional functional layer(s).
  • glazing must meet stringent requirements, for example, regarding its thermal insulation properties. It is desirable to avoid excessive heat gain from solar radiation, which leads to excessive heating of the interior and, in turn, high energy costs for the necessary air conditioning. Therefore, various functional layers are available that, either individually or in combination, produce excellent thermal insulation properties.
  • the further functional layer is a LowE coating (emissivity-reducing coating), a liquid crystal layer with variable light transmission, an IR-reflective coating, a tinted thermoplastic layer, a second black printing area and/or an LED light-directing structure.
  • a LowE (low emissivity) coating is a coating that reduces emissivity. This coating can also be referred to as a heat-reflecting coating or a low-emissivity coating.
  • Such coatings are known, for example, from WO2013/131667A1.
  • Emissivity is the measure that indicates how much heat radiation the pane emits into an interior in its installed position compared to an ideal heat radiator (a blackbody).
  • the function of the emissivity-reducing coating is to prevent heat from entering the interior (IR components of solar radiation and, in particular, the thermal radiation from the pane itself) and also to prevent heat from being emitted from the interior. It exhibits reflective properties against infrared radiation, particularly against thermal radiation in the spectral range of 5 pm - 50 pm (see also standard DIN EN 12898:2019-06). This effectively improves thermal comfort in the interior.
  • the emissivity-reducing coating can particularly effectively reflect, at least partially, the thermal radiation radiated from the entire pane toward the interior.
  • the emissivity-reducing coating can effectively reflect the thermal radiation radiated from the interior, thus reducing the effect of the cold pane as a heat sink.
  • the emissivity-reducing coating preferably contains at least one electrically conductive layer based on a transparent conductive oxide, which provides reflective properties against thermal radiation.
  • the layer based on the transparent conductive oxide is also referred to below as a TCO layer.
  • TCO layers are corrosion-resistant and can be used on exposed surfaces.
  • the TCO layer is preferably based on indium tin oxide (ITO), but can alternatively be based on indium zinc mixed oxide (IZO), aluminum-doped zinc oxide (AZO), gallium-doped zinc oxide (GZO), fluorine-doped tin oxide (FTO, SnO2:F), or antimony-doped tin oxide (ATO, SnO2:Sb).
  • the low-E coating prevents the vehicle roof window from cooling or heating excessively, thereby also better protecting electronic components such as the sensor switching element from temperature damage.
  • the term IR-reflective coating preferably refers to a sun protection coating that has reflective properties in the near infrared range, for example in the range from 800 nm to 1500 nm.
  • a sun protection coating preferably comprises at least one thin, transparent metallic layer embedded between at least one dielectric layer. Silver has emerged as the preferred metal for the metallic layer because it has a relatively neutral color effect and also selectively reflects infrared radiation outside the visible range of solar radiation.
  • the dielectric layers have the task of improving the optical properties of the coated pane via their refractive indices and protecting the metallic functional layer from oxidation.
  • sun protection layers which can be produced, for example, using the reactive sputtering process, are used extensively in glazing for buildings, but also in motor vehicles. In most cases, coating systems with two silver functional layers are used, but three or four silver functional layers are also used, as their efficiency—that is, the reflection of infrared radiation outside the visible range relative to the transmission of visible radiation—is greater.
  • Suitable sun protection coatings are known, for example, from WO2013/104439A1 and DE 19927683C1. The IR-reflective coating prevents the vehicle roof window from overheating, thereby also better protecting electronic components such as the sensor switching element from temperature damage.
  • the aforementioned functional layers have in common that they have electrically conductive properties. If such layers or regions are provided in the vehicle roof window according to the invention, a minimum distance from the sensor switching element is maintained for electrical insulation.
  • such functional layers are at least 1 mm, particularly preferably at least 5 mm, and in particular at least 1 cm away from the sensor switching element. It is not necessary to incorporate a special insulating material.
  • the electrically insulating properties of the thermoplastic intermediate layer in which the sensor switching element is embedded are generally sufficient.
  • the composite pane of the present invention may comprise a tinted thermoplastic layer or a second black print area.
  • an IR-reflective coating is arranged on the inner side II of the outer pane and a low-E coating is arranged on the inner side IV of the inner pane.
  • the composite pane has at least one illumination means, preferably an LED module, and an LED light-directing structure, wherein the control of the illumination means is communicatively connected to the control of the sensor switching element.
  • the communicative connection allows for visual confirmation of the activation of the sensor switch element, for example, by illuminating, displaying a color change, or extinguishing the light. Additionally, by detecting the driver using other sensors, the position of the otherwise invisible sensor switch element can be indicated by activating the light before activation occurs.
  • the invention is explained in more detail with reference to a drawing and exemplary embodiments.
  • the drawing is a schematic representation and not to scale. The drawing does not limit the invention in any way. It shows:
  • Fig. 1 is a schematic cross-sectional view of a first embodiment of a vehicle roof window according to the invention.
  • Fig. 2 is a schematic cross-sectional view of a further embodiment of a vehicle roof window according to the invention.
  • Figure 1 shows a schematic sectional view of a possible stacking sequence of a vehicle roof pane 100 according to the invention in a first embodiment.
  • the vehicle roof pane 100 comprises an outer pane 2 and an inner pane 3, which are connected to one another via a thermoplastic intermediate layer 4.
  • the thermoplastic intermediate layer 4 connects the outer side III of the inner pane 2 to the inner side II of the outer pane 2.
  • the thermoplastic intermediate layer 4 is a composite of several thermoplastic layers 4a, 4b, 4c.
  • the thermoplastic layer 4 is preferably a PVB layer, wherein the individual PVB layers 4a, 4b and 4c can each have a thickness of 0.38 mm, for example. Shown in particular is an edge region of the composite pane, in which a black print 5 is arranged on the inner side II of the outer pane 2. Below the black print 5, the vehicle roof window 100 has a sensor switching element 6, which is embedded in the multi-layer thermoplastic intermediate layer 4. This can be achieved, for example, by inserting corresponding sensor components into a section of the intermediate layer 4c before lamination of the composite window. The black print 5 completely conceals the sensor switching element 6 when viewed through the vehicle roof window 100 from an external environment (viewing direction from the outer pane 2 to the inner pane 3).
  • the sensor switching element 6 is preferably transparent, and in any case preferably not visible when viewed from the outside through the vehicle roof window 100 (viewing direction from the inner pane 3 to the outer pane 2).
  • the inner pane 3 has a second black print 11 on its outer side III. This protects the sensor switching element 6 from the effects of light and, at the same time, enhances the covering effect of connections or adhesive points in the edge region of the composite window.
  • a low-emissivity layer (LowE coating) 7 is provided on the inner side IV of the inner pane 3. It comprises, for example, a conductive ITO layer along with dielectric layers and has a thickness of 400 nm.
  • a liquid crystal layer with variable light transmission 8 (PDLC layer) is provided.
  • the layer like the sensor switching element 6, is embedded in the thermoplastic intermediate layer 4.
  • the detail shows that the PDLC layer is arranged in a recess in the intermediate layer 4c. A minimum distance from the sensor switching element 6 is maintained to ensure safe and sufficient electrical insulation.
  • the liquid crystal layer 8 is connected to the vehicle electrical system by means of an electrical connection, wherein the electrically conductive structures arranged internally in the vehicle roof window 100 for the power supply and/or control of the sensor switching element 6 are also used by the liquid crystal layer 8.
  • FIG 2 shows a variation of the structure for a vehicle roof window 100 according to the invention from Figure 1 in a schematic sectional view.
  • the thermoplastic intermediate layer 4 is again designed in multiple layers, with the layers 4a, 4b, and 4c, as well as with the additionally provided tinted intermediate layer 10.
  • the tint of the additional intermediate layer 10 can, for example, be gray. Equivalently, embodiments are also included in which one of the other thermoplastic intermediate layers 4a, 4b, 4c is tinted, in particular gray.
  • a sensor switching element 6 is embedded below the black print 5 in the intermediate layer 4 designed as a PVB layer.
  • the embodiment has a liquid crystal layer with variable light transmission 8 (PDLC layer), which is arranged in the intermediate layer 4c above the tinted intermediate layer 10.
  • PDLC layer liquid crystal layer with variable light transmission 8
  • the combination of the LowE coating, the tinted intermediate layer 10, and the liquid crystal layer with variable light transmission 8 (PDLC layer) allows for the greatest possible comfort with regard to regulating heat radiation, heat dissipation, and visibility through the roof pane.
  • an illuminator 13 for example an LED module, is arranged in the edge region of the composite pane on the outer side III of the inner pane 3.
  • the light from the illuminator 13 can be coupled into the composite pane, more precisely into a light-directing layer 12, via a reflective prismatic film (not shown here), which is arranged within the thermoplastic intermediate layer 4.
  • the light-directing structure 12 is provided below the tinted thermoplastic intermediate layer 10 as a light-directing layer.
  • the illuminator 13 radiates visible light perpendicular to the outer side III of the inner pane 3 into the vehicle pane 100.
  • the light from the illuminant 13 passes through the inner pane 3, the layer 4b and then the light-directing layer 12 and strikes the reflective prismatic film, which is arranged, for example, between the tinted thermoplastic layer 10 and the light-directing layer 12.
  • the light is at least partially reflected by the prismatic film at such an angle that it is directed into the light-directing layer 12 by utilizing the effect of total reflection. is coupled in.
  • the light-directing layer 12 can consist of a PET carrier layer provided with light-diffusing elements 14.
  • the light-diffusing elements 14 serve to couple out the light coupled into the light-directing layer 12, so that the vehicle roof window 100 is illuminated. Depending on the extent and design of the light-diffusing elements 14, the light can be coupled out either over the entire surface or in desired patterns or areas. This can provide visual confirmation of the actuation of the sensor switching element 6, illumination to indicate the position or readiness of the sensor switching element 6, or ambient lighting independent of the sensor switching element 6.
  • the illumination means 13 is connected to the vehicle electrical system by means of an electrical connection, wherein the electrically conductive structures arranged internally in the vehicle roof window 100 for the power supply and/or control of the sensor switching element 6 are preferably also used by the illumination means 13.

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  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Nonlinear Science (AREA)
  • Dispersion Chemistry (AREA)
  • Mathematical Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Window Of Vehicle (AREA)

Abstract

L'invention concerne une vitre de toit de véhicule (100) comprenant une vitre composite comportant une vitre extérieure (2) avec un côté extérieur (I) et un côté intérieur (II) ainsi qu'une vitre intérieure (3) avec un côté extérieur (III) et un côté intérieur (IV), la vitre extérieure et la vitre intérieure étant reliées l'une à l'autre via une couche intermédiaire thermoplastique multicouche (4), la vitre extérieure (2) ayant une impression noire (5) au moins dans des parties de sa région de bord, caractérisée en ce qu'un élément de commutation de capteur (6) actionnable depuis l'extérieur pour ouvrir et fermer la portière de véhicule est agencé dans la couche intermédiaire thermoplastique (4) dans la région de bord de la vitre de toit de véhicule (100) sous l'impression noire (5), en ce que la vitre composite comprend au moins un autre élément fonctionnel (8, 13) avec une connexion électrique au système électrique du véhicule, et en ce que des structures électriquement conductrices sont disposées à l'intérieur de la vitre composite pour fournir de l'énergie à et/ou commander l'élément de commutation de capteur (6), les structures électriquement conductrices étant également utilisées par l'au moins un autre élément fonctionnel (8, 13).
PCT/EP2024/074759 2023-09-25 2024-09-04 Vitre de toit de véhicule à élément de commutation caché intégré permettant d'ouvrir et de fermer la portière Pending WO2025067838A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP23199385 2023-09-25
EP23199385.8 2023-09-25

Publications (1)

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WO2025067838A1 true WO2025067838A1 (fr) 2025-04-03

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PCT/EP2024/074759 Pending WO2025067838A1 (fr) 2023-09-25 2024-09-04 Vitre de toit de véhicule à élément de commutation caché intégré permettant d'ouvrir et de fermer la portière

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WO (1) WO2025067838A1 (fr)

Citations (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0899882A1 (fr) 1997-06-26 1999-03-03 captron electronic gmbh Circuit pour un interrupteur capacitif de proximité
DE19927683C1 (de) 1999-06-17 2001-01-25 Sekurit Saint Gobain Deutsch Sonnen- und Wärmestrahlen reflektierende Verbundglasscheibe
US6452514B1 (en) 1999-01-26 2002-09-17 Harald Philipp Capacitive sensor and array
EP1515211A1 (fr) 2003-09-09 2005-03-16 Delphi Technologies Inc. Commande tactile à capteurs capacitifs pour lève-vitre ou toit-ouvrant électrique
DE202005010379U1 (de) 2005-07-01 2005-09-29 Captron Electronic Gmbh Türgriff mit kapazitivem Sensor
DE202006006192U1 (de) 2006-04-18 2006-07-27 Captron Electronic Gmbh Türbetätigungstaster
US20070194216A1 (en) 2006-02-21 2007-08-23 Exatec, Llc Printable controls for a window assembly
WO2008047442A1 (fr) 2006-10-20 2008-04-24 Miraial Co., Ltd. Dispositif source de lumière de surface
WO2008113978A1 (fr) * 2007-03-16 2008-09-25 Pilkington Group Limited Vitrage de vehicule interactif
FR2928929A1 (fr) 2008-03-19 2009-09-25 Saint Gobain Composition serigraphiable sur polyvinylbutyral
JP2011086547A (ja) 2009-10-16 2011-04-28 Mitsui Chemicals Inc 配光システム
FR2969957A1 (fr) 2010-12-29 2012-07-06 Saint Gobain Procede de fabrication d'un vitrage feuillete imprime par serigraphie a l'aide d'un ecran de serigraphie double tissage
FR2974103A1 (fr) 2011-04-12 2012-10-19 Saint Gobain Composition serigraphiable sur polyvinylbutyral
WO2013104439A1 (fr) 2012-01-10 2013-07-18 Saint-Gobain Glass France Disque transparent avec revêtement conducteur électrique
WO2013131667A1 (fr) 2012-03-05 2013-09-12 Saint-Gobain Glass France Vitre avec revêtement réfléchissant le rayonnement de chaleur
WO2014020261A1 (fr) 2012-07-31 2014-02-06 Saint-Gobain Glass France Composition coloree serigraphiable sur une feuille de materiau polymere
JP2015043321A (ja) 2013-08-26 2015-03-05 アドヴァンスト オプトエレクトロニック テクノロジー インコーポレイテッドＡｄｖａｎｃｅｄ Ｏｐｔｏｅｌｅｃｔｒｏｎｉｃ Ｔｅｃｈｎｏｌｏｇｙ Ｉｎｃ． 発光ダイオード光源モジュール
WO2018002707A1 (fr) 2016-06-29 2018-01-04 Saint-Gobain Glass France Vitrage à commande tactile avec dispositif tactile capacitif et diode électroluminescente et sa fabrication
DE202021103109U1 (de) 2021-06-09 2021-06-17 Saint-Gobain Sekurit Deutschland Gmbh & Co. Kg Fahrzeugglastür mit integriertem Sensorschaltelement zum Öffnen und Schließen der Tür
WO2021156143A1 (fr) * 2020-02-03 2021-08-12 Saint-Gobain Glass France Ensemble vitre composite doté d'un élément de commande tactile permettant de commander une fonction
WO2022180065A1 (fr) 2021-02-24 2022-09-01 Saint-Gobain Glass France Vitrage à surface de commutation sensible

Patent Citations (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0899882A1 (fr) 1997-06-26 1999-03-03 captron electronic gmbh Circuit pour un interrupteur capacitif de proximité
US6452514B1 (en) 1999-01-26 2002-09-17 Harald Philipp Capacitive sensor and array
DE19927683C1 (de) 1999-06-17 2001-01-25 Sekurit Saint Gobain Deutsch Sonnen- und Wärmestrahlen reflektierende Verbundglasscheibe
EP1515211A1 (fr) 2003-09-09 2005-03-16 Delphi Technologies Inc. Commande tactile à capteurs capacitifs pour lève-vitre ou toit-ouvrant électrique
DE202005010379U1 (de) 2005-07-01 2005-09-29 Captron Electronic Gmbh Türgriff mit kapazitivem Sensor
US20070194216A1 (en) 2006-02-21 2007-08-23 Exatec, Llc Printable controls for a window assembly
DE202006006192U1 (de) 2006-04-18 2006-07-27 Captron Electronic Gmbh Türbetätigungstaster
WO2008047442A1 (fr) 2006-10-20 2008-04-24 Miraial Co., Ltd. Dispositif source de lumière de surface
WO2008113978A1 (fr) * 2007-03-16 2008-09-25 Pilkington Group Limited Vitrage de vehicule interactif
FR2928929A1 (fr) 2008-03-19 2009-09-25 Saint Gobain Composition serigraphiable sur polyvinylbutyral
JP2011086547A (ja) 2009-10-16 2011-04-28 Mitsui Chemicals Inc 配光システム
FR2969957A1 (fr) 2010-12-29 2012-07-06 Saint Gobain Procede de fabrication d'un vitrage feuillete imprime par serigraphie a l'aide d'un ecran de serigraphie double tissage
FR2974103A1 (fr) 2011-04-12 2012-10-19 Saint Gobain Composition serigraphiable sur polyvinylbutyral
WO2013104439A1 (fr) 2012-01-10 2013-07-18 Saint-Gobain Glass France Disque transparent avec revêtement conducteur électrique
WO2013131667A1 (fr) 2012-03-05 2013-09-12 Saint-Gobain Glass France Vitre avec revêtement réfléchissant le rayonnement de chaleur
WO2014020261A1 (fr) 2012-07-31 2014-02-06 Saint-Gobain Glass France Composition coloree serigraphiable sur une feuille de materiau polymere
JP2015043321A (ja) 2013-08-26 2015-03-05 アドヴァンスト オプトエレクトロニック テクノロジー インコーポレイテッドＡｄｖａｎｃｅｄ Ｏｐｔｏｅｌｅｃｔｒｏｎｉｃ Ｔｅｃｈｎｏｌｏｇｙ Ｉｎｃ． 発光ダイオード光源モジュール
WO2018002707A1 (fr) 2016-06-29 2018-01-04 Saint-Gobain Glass France Vitrage à commande tactile avec dispositif tactile capacitif et diode électroluminescente et sa fabrication
WO2021156143A1 (fr) * 2020-02-03 2021-08-12 Saint-Gobain Glass France Ensemble vitre composite doté d'un élément de commande tactile permettant de commander une fonction
WO2022180065A1 (fr) 2021-02-24 2022-09-01 Saint-Gobain Glass France Vitrage à surface de commutation sensible
DE202021103109U1 (de) 2021-06-09 2021-06-17 Saint-Gobain Sekurit Deutschland Gmbh & Co. Kg Fahrzeugglastür mit integriertem Sensorschaltelement zum Öffnen und Schließen der Tür

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