WO2024251467A1 - Vitre composite comprenant un dispositif de chauffage - Google Patents

Vitre composite comprenant un dispositif de chauffage Download PDF

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Publication number
WO2024251467A1
WO2024251467A1 PCT/EP2024/063172 EP2024063172W WO2024251467A1 WO 2024251467 A1 WO2024251467 A1 WO 2024251467A1 EP 2024063172 W EP2024063172 W EP 2024063172W WO 2024251467 A1 WO2024251467 A1 WO 2024251467A1
Authority
WO
WIPO (PCT)
Prior art keywords
pane
composite pane
heating device
vehicle
heatable
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.)
Ceased
Application number
PCT/EP2024/063172
Other languages
German (de)
English (en)
Inventor
Hadi RASTEGAR
Siyamak MEMAR JAVID
Yahya MOTEMANI SHARABIANI
Valentin SCHULZ
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
Priority to EP24724555.8A priority Critical patent/EP4724272A1/fr
Priority to CN202480023838.4A priority patent/CN120916893A/zh
Publication of WO2024251467A1 publication Critical patent/WO2024251467A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • B32B17/10247—Laminated safety glass or glazing containing decorations or patterns for aesthetic reasons
    • B32B17/10256—Laminated safety glass or glazing containing decorations or patterns for aesthetic reasons created by printing techniques
    • B32B17/10266—Laminated safety glass or glazing containing decorations or patterns for aesthetic reasons created by printing techniques on glass pane
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material 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
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S20/00—Supporting structures for PV modules
    • H02S20/30—Supporting structures being movable or adjustable, e.g. for angle adjustment
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
    • H02S40/40—Thermal components
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/84—Heating arrangements specially adapted for transparent or reflecting areas, e.g. for demisting or de-icing windows, mirrors or vehicle windshields
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/84—Heating arrangements specially adapted for transparent or reflecting areas, e.g. for demisting or de-icing windows, mirrors or vehicle windshields
    • H05B3/86—Heating arrangements specially adapted for transparent or reflecting areas, e.g. for demisting or de-icing windows, mirrors or vehicle windshields the heating conductors being embedded in the transparent or reflecting material
    • 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
    • B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
    • B32B2307/202—Conductive
    • 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
    • B32B2307/402—Coloured
    • B32B2307/4023—Coloured on the layer surface, e.g. ink
    • 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
    • B32B2307/41—Opaque
    • 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
    • B32B2307/70—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
    • B32B2457/00—Electrical equipment
    • B32B2457/12—Photovoltaic modules
    • 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
    • B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J1/00—Windows; Windscreens; Accessories therefor
    • B60J1/002—Windows; Windscreens; Accessories therefor with means for clear vision, e.g. anti-frost or defog panes, rain shields

Definitions

  • the invention relates to a heatable composite pane and a vehicle with the heatable composite pane.
  • the heated composite windows are used in particular as heated windshields in motor vehicles and offer the possibility of conveniently removing icing or condensed moisture from the windshield by heating it. They have transparent, electrically conductive coatings, in particular with silver layers. The coatings are electrically contacted so that a current can be passed through them. The coating heats up in the process, which is what gives it its heating effect. For example, see WO2013/104438A1.
  • One problem with such coatings is their often high surface resistance, which requires a high operating voltage, especially when the window to be heated is large. The heat and thus energy loss appears to be very high due to convection across the usually large window surfaces.
  • the interior of a vehicle and the window are usually heated using heated air, which is blown into the interior or onto the window via inlets.
  • heated air which is blown into the interior or onto the window via inlets.
  • electric heating systems in vehicles have been known for many years for seat heating or steering wheel heating.
  • Thermal comfort of vehicle occupants and the goal of achieving a pleasant temperature play an important role in vehicle construction. Thermal comfort should be achieved as energy efficiently as possible.
  • the well-tempered air flows can usually only be achieved with high energy consumption.
  • DE 10 2007 040008 A1 discloses a vehicle window with a temporarily transparent area, wherein the transparent area is heatable.
  • WO 2009/085741 A2 describes a sun protection film that has a flexible carrier that is transparent to visible light, two metal layers and a polymer protective layer.
  • the sun protection film is transparent to visible light and infrared-reflecting.
  • the object of the present invention is to provide a composite pane that enables thermal comfort in the vehicle interior in an energy-efficient manner.
  • a heatable composite pane is provided as a roof pane for a vehicle, comprising an outer pane with an outer surface and an interior surface, and an inner pane with an outer surface and an interior surface, which are connected to one another via a thermoplastic intermediate layer, and at least one infrared heating device with infrared radiation for an interior, wherein the infrared heating device is arranged as a structure made of a printed, electrically conductive material on the inner pane in a planar manner and is provided in the installed position of the composite pane for the effect of heat on a vehicle occupant, wherein the structure can be connected to an electrical voltage via a strip-shaped first bus conductor and a strip-shaped second bus conductor in such a way that after an electrical voltage is applied to the bus conductors, a heating current flows through the structure.
  • the infrared heating device is designed in the form of an electrically conductive print.
  • thermal comfort and a pleasant temperature can be provided locally on the body of the vehicle occupant without, for example, the temperature in the entire vehicle interior having to be increased.
  • the use of a printed, electrically conductive material enables a particularly cost-effective technical implementation of an infrared emitter.
  • the electrically conductive material conducts electricity via at least two connection points on the electrically conductive material, resulting in an energy conversion of heat in the form of infrared radiation.
  • the infrared heating device is preferably designed to generate infrared radiation in a wavelength range from 0.78 pm to 2.8 pm, i.e. in the long-wave part of the NIR range (Near Infrared).
  • the structure can be designed as a printed, in particular printed, electrically conductive material.
  • the printed, electrically conductive material preferably contains at least one metal compound, metal alloy and/or carbon.
  • the printed, electrically conductive material comprises graphite.
  • the structure can in particular comprise several, in particular 10 to 15, strip-shaped heating elements connected in parallel for emitting infrared radiation, wherein each strip-shaped heating element has the printed, electrically conductive material.
  • the strip-shaped heating elements can be spaced apart from one another.
  • the structure can be connected via a strip-shaped first busbar and a strip-shaped second busbar in such a way that after an electrical voltage is applied to the busbars, a heating current flows through the structure. This creates a heating field formed by the structure.
  • the structure can have a material thickness of 1 pm to 500 pm.
  • the material thickness (layer thickness) of the printed structure is preferably from 5 pm to 300 pm, particularly preferably from 10 pm to 100 pm, and most particularly preferably 12 pm to 50 pm. Structures with these thicknesses are technically easy to implement and have advantageous current conductivity.
  • the composite pane is intended to separate the interior from the outside environment in a window opening (in particular a window opening in a vehicle).
  • the inner pane refers to the pane of the composite pane facing the interior.
  • the outer pane refers to the pane facing the outside environment.
  • the heatable composite pane is a roof pane, for example designed as a window pane of a motor vehicle, rail vehicle, ship or aircraft.
  • the composite pane is preferably a roof pane of a passenger car or truck.
  • the vehicle is an electric vehicle.
  • the heatable composite pane can comprise one or more photovoltaic modules.
  • the structure can be arranged on the interior-side surface (IV) of the inner pane.
  • the one or more photovoltaic modules can then be arranged on the exterior surface (III) of the inner pane or on the interior-side surface (II) of the outer pane or between the outer pane and the inner pane.
  • the at least one or more photovoltaic modules and the structure can at least partially overlap in the viewing direction through the composite pane.
  • the structure lies in the viewing direction through the Composite pane from the inside spatially in front of a photovoltaic module, so that the heating foil is arranged in orthogonal projection through the composite pane in overlap with the photovoltaic module.
  • the structure can be arranged on the outside surface (III) of the inner pane.
  • the one or more photovoltaic modules can then be arranged on the inside surface (II) of the outer pane or between the outer pane and the inner pane, wherein at least one photovoltaic module and the structure can overlap in the viewing direction through the composite pane.
  • the structure is located spatially in front of a photovoltaic module in the viewing direction through the composite pane from the inside, so that the heating foil is arranged in an orthogonal projection through the composite pane in overlap with the photovoltaic module.
  • the use of the printed structure offers great design freedom regarding the external shape of the printed structure in order to maintain the design freedom of automobile manufacturers for different installation situations.
  • the infrared heating device can have at least one separately controllable surface section with a rectangular basic shape with an edge length of 100 mm, 200 mm, 300 mm or 1500 mm.
  • the heat radiated by the surface section warms an occupant sitting under the surface section.
  • the infrared heating device can comprise several surface sections.
  • the surface sections of the infrared heating device are each designed to distribute the heat as evenly as possible. This also enables the temperature to be adjusted locally. Energy can thus be saved efficiently because the entire vehicle interior does not have to be heated.
  • the infrared heating device can take up less than 20%, in particular less than 10% of the outside surface (III) or the inside surface (IV) of the inner pane.
  • the heatable composite pane can be opaque, in particular if the heatable composite pane is designed as a roof pane. In this case, a transmission of at most 15%, preferably at most 2%, particularly preferably at most 1%, in particular at most 0.1%, of the light of the visible spectrum through the composite pane takes place.
  • At least one surface section of the Infrared heating device can be assigned.
  • the respective surface section can be switched on and operated independently of other surface sections.
  • the individually heated areas in the vehicle interior achieve a pleasant effect and significantly increase the heat given off by a surface section.
  • the thermoplastic intermediate layer is arranged between the outer pane and the inner pane.
  • the intermediate layer connects the outer pane to the inner pane.
  • the thermoplastic intermediate layer contains at least one thermoplastic polymer, preferably ethylene vinyl acetate (EVA), polyvinyl butyral (PVB) or polyurethane (PU) or mixtures or copolymers or derivatives thereof, particularly preferably PVB.
  • the thermoplastic intermediate layer is typically made of a thermoplastic film (connecting film).
  • the thickness of the thermoplastic intermediate layer is preferably from 0.2 mm to 2 mm, particularly preferably from 0.3 mm to 1 mm, for example 760 pm.
  • the thermoplastic intermediate layer can be made of a single film or more than one film.
  • the thermoplastic intermediate layer can also be a film with functional properties, for example a film with acoustically dampening properties. If the thermoplastic intermediate layer is made of intermediate layers formed from two films and the infrared heating device is divided into at least two surface sections, the surface sections can be arranged in a plane between the two intermediate layers. If there are several surface sections embedded in the composite pane, the heating output can be regulated much more precisely.
  • One of the intermediate layers can in particular be an intermediate layer that is tinted at least in sections.
  • the outer pane and the inner pane can have suitable coatings known per se, for example anti-reflective coatings, non-stick coatings, Anti-scratch coatings, photocatalytic coatings or sun protection coatings or low-E coatings.
  • the thickness of the outer pane and the inner pane can vary widely and can thus be adapted to the requirements in individual cases.
  • the outer pane and the inner pane preferably have thicknesses of 0.5 mm to 5 mm, particularly preferably 1 mm to 3 mm, and very particularly preferably 1.6 mm to 2.1 mm.
  • the outer pane has a thickness of 2.1 mm and the inner pane has a thickness of 1.6 mm.
  • the outer pane or, in particular, the inner pane can also be thin glass with a thickness of, for example, 0.55 mm.
  • the invention also relates to a vehicle comprising a heatable composite pane according to the invention for heating an area in the vehicle interior, wherein at least one surface section of the infrared heating device is arranged on the head region of a vehicle occupant.
  • the invention relates to a heating system for heating a vehicle interior comprising the heatable composite pane according to the invention and at least one control device and/or on-board electronics of a vehicle connected to the infrared heating device.
  • Figure 1 is a plan view of an embodiment of a composite pane according to the invention.
  • Figure 2 is a plan view of another embodiment of the composite pane according to the invention.
  • Figure 3 is a cross-sectional view of an embodiment of the composite pane according to the invention.
  • Figure 4 is a cross-sectional view of another embodiment of the composite pane according to the invention.
  • information with numerical values should not be understood as exact values, but also include a tolerance of +/- 1% up to +/- 10%.
  • Figure 1 shows a first embodiment of a composite pane 10 according to the invention as a roof pane of a passenger car in a top view.
  • the composite pane 10 is intended to separate the interior 12 (Figure 3) of the car from the outside environment in a window opening of the car.
  • Figures 3 and 4 show this embodiment in cross section.
  • the composite pane 10 is shown flat, although roof panes are typically curved in reality.
  • the composite pane 10 has an infrared heating device 5.
  • the infrared heating device 5 is designed as a structure 4 made of a printed, electrically conductive material.
  • Each structure 4 can be connected to an electrical voltage via a strip-shaped first busbar 8 and a strip-shaped second busbar 8, so that after the electrical voltage is applied to the busbar 8, a heating current flows through the respective structure 4.
  • Each structure 4 comprises several, in particular 10 to 15, strip-shaped heating elements 6 connected in parallel.
  • the strip-shaped heating elements 6 are spaced apart from one another.
  • the infrared heating device 5 is divided into four surface sections and one elongated surface section. Each surface section can be connected to an electrical voltage source via a busbar 8. When the composite pane 10 is installed, the infrared radiation 9 is directed at predetermined areas of the car interior, in particular the head area of a vehicle occupant.
  • the surface sections can be controlled electrically separately. They each have a rectangular basic shape with an edge length of, for example, 100 mm, 200 mm, 300 mm or 1500 mm.
  • the surface sections of the infrared heating device 5 are preferably arranged in the edge area of the composite pane 100, which is typically opaque in the vehicle area, for example by photovoltaic modules 7 or by a black, usually enamel-like print (masking layer) on an interior-side surface 11 of the outer pane 1.
  • the heat radiated by the surface section heats an occupant sitting under the surface section.
  • the surface sections are designed to distribute the heat as evenly as possible. This allows local adjustment of temperature and at the same time Energy can be saved efficiently because the entire vehicle interior does not have to be heated.
  • Figure 2 shows a second embodiment of the composite pane 10 in a top view of an interior-side surface of the composite pane 10.
  • the composite pane 10 has three surface sections of the infrared heating device 5.
  • the surface sections of Figure 2 differ in their shape from the surface sections of Figure 1.
  • the three surface sections of the infrared heating device 5 are strip-shaped and extend from one side edge to an opposite side edge of the composite pane 10, preferably in each case over a row of seats of a car.
  • the infrared heating device 5 is designed as a structure 4.
  • the structure 4 is connected via a strip-shaped first busbar 8 and a strip-shaped second busbar 8 in such a way that after an electrical voltage is applied to the busbar 8, a heating current flows through the structure 4.
  • the composite pane according to the invention from Figure 1 is shown in cross section XX'.
  • the composite pane 10 comprises an outer pane 1 and the inner pane 2, which are connected to one another via an intermediate layer 3.
  • the outer pane 1 comprises an outer surface I and the interior surface II.
  • the inner pane 2 comprises an outer surface III and an interior surface IV.
  • the outer surface refers to the main surface which is intended to face the external environment in the installed position.
  • the interior surface refers to the main surface which is intended to face the interior 12 in the installed position.
  • the outer pane 1 and the inner pane 2 are made of soda-lime glass.
  • the outer pane 1 has a thickness of 2.1 mm, for example, and the inner pane 2 has a thickness of 1.6 mm.
  • the intermediate layer 3 is made of a PVB film with a thickness of 0.76 mm, for example.
  • the interior surface II of the outer pane 1 and the exterior surface III of the inner pane 2 face each other and are connected to each other by the
  • the heatable composite pane 10 comprises the infrared heating device 5, which is formed from the structure 4.
  • Structure 4 emits infrared radiation 9 for the interior 12 of the car, wherein the infrared heating device 5 is intended to apply heat to a vehicle occupant.
  • the structure 4 comprises several, in particular 10 to 15, strip-shaped heating elements 6 connected in parallel for emitting infrared radiation, wherein each strip-shaped heating element 6 has the printed, electrically conductive material.
  • the strip-shaped heating elements 6 are spaced apart from one another.
  • the structure 4 is connected via a strip-shaped first busbar 8 and a strip-shaped second busbar 8 in such a way that after an electrical voltage is applied to the busbar 8, a heating current flows through the structure 4. This forms a heating field formed by the structure.
  • the structure 4 is divided into several surface sections. Preferably, the entire structure is applied and burned by screen printing a baking paste. Techniques other than screen printing can also be used to produce the printed structure 4, for example inkjet printing or extrusion.
  • the surface sections of the structure 4 take up less than 50%, 20% or less than 10% of the interior surface IV of the inner pane 2. This makes it possible to provide thermal comfort and a pleasant temperature locally on the body of the vehicle occupant without having to increase the temperature in the entire vehicle interior.
  • the use of a structure 4 as an infrared emitter enables particularly simple technical production of the composite pane. Furthermore, the use of the structure 4 does not require a great deal of additional installation space.
  • a protective cover can envelop the structure 4 or cover it on one side.
  • the composite pane 10 comprises several photovoltaic modules 7.
  • the photovoltaic modules 7 are arranged on the interior surface II of the outer pane 1.
  • the photovoltaic modules 7 can be arranged on the exterior surface III of the inner pane 2 or between the outer pane 1 and the inner pane 2.
  • the photovoltaic modules 7 and the structure 4 overlap in the viewing direction through the Composite pane 10.
  • the photovoltaic modules 7 conceal the view of the structure 4 from the outside.
  • the structure 4 is thus concealed inconspicuously for the observer.
  • the structure 4 is not visible from the outside in a particularly advantageous manner when the composite pane is installed as a roof pane of a vehicle, so that the optical-aesthetic appearance of the composite pane 10 is not impaired.
  • the first and second configurations of the cross-section can be used both in the embodiment according to Figure 1 and in the embodiment according to Figure 2.
  • the shape of the surface sections of the structure 4 is adapted.
  • the heating effect does not depend on the heating of the composite pane itself, but is achieved selectively by controlling a respective surface section of the infrared heating device.
  • the heating effect therefore occurs much more quickly than with previously used heating devices and can offer a very good solution, especially when used in conjunction with children's car seats.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Surface Heating Bodies (AREA)
  • Laminated Bodies (AREA)

Abstract

La présente invention concerne une vitre composite chauffante (10) servant de fenêtre de toit pour un véhicule, ladite vitre composite comprenant : - une vitre extérieure (1) ayant une surface extérieure (I) et une surface intérieure (II), et une vitre intérieure (2) ayant une surface extérieure (III) et une surface intérieure (IV), la vitre extérieure et la vitre intérieure étant reliées l'une à l'autre au moyen d'une couche intermédiaire thermoplastique (3), et - un dispositif de chauffage infrarouge (5) qui émet un rayonnement infrarouge pour un espace intérieur, le dispositif de chauffage infrarouge (5) étant disposé sur la vitre intérieure (2) de manière plane en tant que structure (4) constituée d'un matériau imprimé électriquement conducteur et, lorsque la vitre composite (10) est installée, étant conçue pour exposer un occupant de véhicule à de la chaleur, la structure (4) pouvant être reliée à une tension électrique par l'intermédiaire d'une première barre omnibus en forme de bande (8) et d'une seconde barre omnibus en forme de bande (8) de telle sorte que, après qu'une tension électrique a été appliquée aux barres omnibus (8), un courant de chauffage s'écoule par l'intermédiaire de la structure (4).
PCT/EP2024/063172 2023-06-07 2024-05-14 Vitre composite comprenant un dispositif de chauffage Ceased WO2024251467A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP24724555.8A EP4724272A1 (fr) 2023-06-07 2024-05-14 Vitre composite comprenant un dispositif de chauffage
CN202480023838.4A CN120916893A (zh) 2023-06-07 2024-05-14 具有加热装置的层压片材

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP23177997.6 2023-06-07
EP23177997 2023-06-07

Publications (1)

Publication Number Publication Date
WO2024251467A1 true WO2024251467A1 (fr) 2024-12-12

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Country Link
EP (1) EP4724272A1 (fr)
CN (1) CN120916893A (fr)
WO (1) WO2024251467A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5005020A (en) * 1987-01-20 1991-04-02 Asahi Glass Company, Ltd. Transparent glass antenna for an automobile
DE102007040008A1 (de) 2007-08-24 2009-02-26 Daimler Ag Fahrzeugdach mit einem durchsichtigen Bereich
WO2009085741A2 (fr) 2007-12-28 2009-07-09 3M Innovative Properties Company Films de réflexion des infrarouges pour une protection solaire et autres utilisations
WO2013104438A1 (fr) 2012-01-10 2013-07-18 Saint-Gobain Glass France Disque transparent avec revêtement conducteur électrique
WO2018225095A1 (fr) * 2017-06-09 2018-12-13 Saint-Gobain Glass France Vitrage feuilleté à transpondeur de données intégré
WO2022167333A1 (fr) * 2021-02-05 2022-08-11 Saint-Gobain Glass France Vitre composite comprenant une fenêtre de caméra pouvant être chauffée électriquement

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5005020A (en) * 1987-01-20 1991-04-02 Asahi Glass Company, Ltd. Transparent glass antenna for an automobile
DE102007040008A1 (de) 2007-08-24 2009-02-26 Daimler Ag Fahrzeugdach mit einem durchsichtigen Bereich
WO2009085741A2 (fr) 2007-12-28 2009-07-09 3M Innovative Properties Company Films de réflexion des infrarouges pour une protection solaire et autres utilisations
WO2013104438A1 (fr) 2012-01-10 2013-07-18 Saint-Gobain Glass France Disque transparent avec revêtement conducteur électrique
WO2018225095A1 (fr) * 2017-06-09 2018-12-13 Saint-Gobain Glass France Vitrage feuilleté à transpondeur de données intégré
WO2022167333A1 (fr) * 2021-02-05 2022-08-11 Saint-Gobain Glass France Vitre composite comprenant une fenêtre de caméra pouvant être chauffée électriquement

Also Published As

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CN120916893A (zh) 2025-11-07
EP4724272A1 (fr) 2026-04-15

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