WO2024251466A1 - Vitre composite chauffable - Google Patents

Vitre composite chauffable Download PDF

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Publication number
WO2024251466A1
WO2024251466A1 PCT/EP2024/063171 EP2024063171W WO2024251466A1 WO 2024251466 A1 WO2024251466 A1 WO 2024251466A1 EP 2024063171 W EP2024063171 W EP 2024063171W WO 2024251466 A1 WO2024251466 A1 WO 2024251466A1
Authority
WO
WIPO (PCT)
Prior art keywords
pane
heating
composite pane
foil
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/EP2024/063171
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
Publication of WO2024251466A1 publication Critical patent/WO2024251466A1/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
    • 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
    • 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
    • B32B27/06—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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • 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
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • 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
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
    • H10F19/00—Integrated devices, or assemblies of multiple devices, comprising at least one photovoltaic cell covered by group H10F10/00, e.g. photovoltaic modules
    • H10F19/80—Encapsulations or containers for integrated devices, or assemblies of multiple devices, having photovoltaic cells
    • H10F19/807—Double-glass encapsulation, e.g. photovoltaic cells arranged between front and rear 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
    • B32B2255/00—Coating on the layer surface
    • B32B2255/10—Coating on the layer surface on synthetic resin layer or on natural or synthetic rubber layer
    • 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
    • B32B2255/00—Coating on the layer surface
    • B32B2255/20—Inorganic coating
    • 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
    • B32B2307/41—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 ice 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, which is what gives it its heating effect. For example, see WO2013/104438A1. The heat and thus energy loss appears to be very high due to convection over 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.
  • electric heating systems have been known in vehicles for many years from 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. This object is achieved by a composite pane according to claim 1. Preferred embodiments emerge from the subclaims.
  • the heatable composite pane according to the invention as a roof pane for a vehicle comprises an outer pane with an outer surface and an interior surface, as well as an inner pane with an outer surface and an interior surface, which are connected to one another via a thermoplastic intermediate layer.
  • the heatable composite pane also comprises an infrared heating device designed as a heating film with infrared radiation for an interior, wherein in the installed position of the composite pane the infrared heating device is provided for the heat effect on a vehicle occupant.
  • thermal comfort and a pleasant temperature can be provided locally on the body of the vehicle occupant without, for example, the temperature having to be increased in the entire vehicle interior.
  • the use of a heating film as an infrared emitter enables a particularly simple technical production of the composite pane. Furthermore, the use of the heating film does not require a great deal of additional installation space.
  • 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 heating foil is arranged between the inner pane and the outer pane or on the interior surface of the inner pane.
  • the heating foil can be designed as a flexible, i.e. bendable foil. If the heating foil is arranged on the interior surface of the inner pane, the heating foil is particularly energy efficient because it is attached particularly close to the head area of the vehicle occupant. Furthermore, such an arrangement of the heating foil can also be easily integrated into the existing designs of composite panes.
  • the heating foil comprises graphite. It is also preferred that the heating foil comprises an electrically conductive coating which comprises the graphite. This electrically conductive coating is arranged on a carrier and embedded between the carrier and a cover foil. The electrically conductive coating is connected to a power supply via at least two connection points, ie the electrically conductive coating of the heating foil is connected to a voltage supply. The electrically conductive coating conducts a heating current, whereby an energy conversion of heat in the form of infrared radiation occurs. For example, a voltage regulator connected to the heating foil can be provided for controlling an electrical voltage applied to the electrically conductive coating. A preferred embodiment provides that the heating foil is connected to at least one control device and/or on-board electronics.
  • the heating foil comprises several, in particular 10 to 15, strip-shaped heating elements connected in parallel for emitting infrared radiation, with each strip-shaped heating element having the electrically conductive coating.
  • a heating foil with several heating elements can increase the heat intensity.
  • the heating foil can have a heating output of 60 watts/m 2 to 400 watts/m 2 and/or a thickness of 0.2 mm to 0.5 mm.
  • the heatable composite pane can comprise one or more photovoltaic modules.
  • the heating foil can be arranged on the interior 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 surface (II) of the outer pane or between the outer pane and the inner pane.
  • a photovoltaic module and the heating foil can overlap in the direction of viewing through the composite pane.
  • the heating foil is spatially in front of a photovoltaic module when viewed 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 heating foil 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, whereby a photovoltaic module and the heating foil can overlap in the direction of viewing through the composite pane.
  • the heating foil is spatially in front of a photovoltaic module when viewed 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 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.
  • the heating foil offers a great deal of design freedom with regard to the external shape of a surface section in order to maintain the design freedom of the automobile manufacturers for different installation situations.
  • the heating foil 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 surface sections of the heating foil are designed to distribute the heat as evenly as possible. This 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 infrared heating device is preferably designed to generate infrared radiation in a wavelength range from 0.780 pm to 2.8 pm, i.e. in the long-wave part of the NIR range (Near Infrared).
  • At least one surface section of the heating foil can be assigned to each seat or row of seats in a vehicle and the surface section can be switched and operated independently of other surface sections.
  • the individually heatable regions in the vehicle interior significantly increase the beneficial effect of the heat emitted by a surface section and make it available particularly quickly.
  • 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 formed by a single film or by 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 comprises two intermediate layers and the heating film 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 in a much more targeted manner.
  • 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 preferably contain or consist of glass, particularly preferably flat glass, float glass, quartz glass, borosilicate glass, soda-lime glass, alumino-silicate 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 outer pane and the inner pane can be clear and colorless, but also tinted or colored.
  • the outer pane and the inner pane can be untempered, partially tempered or tempered independently of one another. If at least one of the panes is to be tempered, this can be thermal or chemical tempering.
  • the outer pane and the inner pane may 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 in the head region of a vehicle occupant.
  • the vehicle is an electric vehicle.
  • Figure 1 shows a first embodiment of the composite pane according to the invention in a plan view of an interior surface of the composite pane
  • Figure 2 shows a second embodiment of the composite pane according to the invention in a plan view of an interior surface of the composite pane
  • Figure 3 shows the composite pane according to the invention from Fig. 1 in cross section X-X’
  • Figure 4 shows a further embodiment of the composite pane according to the invention from Figure 1 in cross section X-X’, and
  • Figure 5 shows a heating foil in plan view.
  • 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.
  • a vehicle occupant of the passenger car (car) can be exposed to infrared radiation 9 (Figure 3).
  • the infrared heating device 5 is divided into four equally sized surface sections and one elongated surface section.
  • the elongated surface section extends from one side edge of the composite pane 10 to an opposite side edge.
  • 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 separately and have a rectangular basic shape with an edge length of, for example, 100 mm, 200 mm, 300 mm or 1500 mm.
  • the heat radiated by a surface section of the infrared heating device 5 heats an occupant sitting under the surface section.
  • the surface sections are designed to distribute the heat as evenly as possible. This enables local adjustment of the temperature and at the same time energy can be saved efficiently because the entire vehicle interior 12 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 IV of the composite pane 10.
  • the composite pane 10 has three surface sections of the infrared heating device 5.
  • the three surface sections of the infrared heating device 5 are strip-shaped and extend from one side edge to an opposite side edge, preferably each over a row of seats in a car.
  • the composite pane according to the invention from Figure 1 is shown in cross section X-X'.
  • the composite pane 10 comprises an outer pane 1 and an inner pane 2, which are connected to one another via an intermediate layer 3.
  • the outer pane 1 comprises an outer surface I and an interior surface II.
  • the inner pane 2 comprises an outer surface III and the 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-side surface II of the outer pane 1 and the outer surface III of the inner pane 2 face each other and are connected to each other by the thermoplastic intermediate layer 3.
  • the heatable composite pane 10 comprises the infrared heating device 5, which is made of a heating foil 4.
  • the heating foil 4 emits infrared radiation 9 in the direction of the interior 12 of the car, whereby the infrared heating device 5 is intended to provide heat to a vehicle occupant.
  • the heating foil 4 is divided into the surface sections of the infrared heating device.
  • the surface sections of the heating foil 4 take up less than 50%, 20% or less than 10% of the interior-side surface IV of the inner pane 2. This means that thermal comfort and a pleasant temperature can be provided locally on the body of the vehicle occupant without, for example, having to increase the temperature in the entire vehicle interior 12.
  • the use of a heating foil 4 as an infrared emitter enables a particularly simple technical manufacture of the composite pane 10. Furthermore, the use of the heating foil 4 does not require a great deal of additional installation space.
  • a protective cover can encase the heating foil 4.
  • the composite pane 10 also comprises a plurality of 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.
  • At least one photovoltaic module 7 and the heating foil 4 overlap in the viewing direction through the composite pane 10.
  • the photovoltaic modules 7 can conceal the view of the heating foil 4 from the outside. This means that the heating foil 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.
  • Figure 4 shows a second embodiment of the cross section X-X'.
  • the difference to the embodiment described in Figure 3 is that the heating foil 4 is arranged on the outside surface III of the inner pane 2.
  • the heating foil 4 is connected to the inner pane 2 via the thermoplastic intermediate layer 3, wherein the surface sections of the heating foil 4 are arranged in a plane between two intermediate layers 3.
  • the first and second embodiments 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 heating foil 4 is adapted for the embodiment according to Figure 2.
  • the composite pane 10 comprises an outer pane 1 and an inner pane 2, which are connected by a
  • the outer pane 1 comprises a outside surface I and an interior surface II.
  • the inner pane 2 comprises an outside surface III and the interior surface IV.
  • 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, for example, from a PVB film with a thickness of 0.76 mm.
  • the interior surface II of the outer pane 1 and the outside surface III of the inner pane 2 face each other and are connected to each other by the thermoplastic intermediate layer 3.
  • the heatable composite pane 10 comprises the infrared heating device 5, which is made from the heating film 4.
  • the heating film 4 emits infrared radiation 9 in the direction of the interior 12 of the car, the infrared heating device 5 being intended to apply heat to a vehicle occupant.
  • the heating foil 4 is divided into the surface sections of the infrared heating device.
  • the surface sections of the heating foil 4 take up less than 50%, 20% or less than 10% of the outer surface III of the inner pane 2.
  • the photovoltaic modules 7 are arranged on the interior surface II of the outer pane 1.
  • the photovoltaic modules 7 and the heating foil 4 overlap in the viewing direction through the composite pane 10.
  • the photovoltaic modules 7 obscure the view of the heating foil 4 from the outside.
  • FIG. 5 shows the heating foil 4 in plan view.
  • the heating foil 4 comprises 5 strip-shaped heating elements 6 connected in parallel for emitting infrared radiation 9, whereby each strip-shaped heating element 6 has an electrically conductive coating.
  • the heating foil 4 is designed to be scalable.
  • the heating foil 4 has a heating output of 60 watts/m 2 to 400 watts/m 2 .
  • the heating foil has a thickness of 0.2 mm to 0.5 mm.
  • the electrically conductive coating of the heating foil 4 comprises graphite.
  • the electrically conductive coating is arranged on a carrier and embedded between the carrier and a cover foil.
  • the carrier can be a foil, in particular a PE or PET foil, and the cover foil can be a PE or PET foil.
  • the carrier and the cover foil can contain further thermoplastic layers, 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 heating foil 4 comprises the five strip-shaped heating elements 6 connected in parallel for emitting infrared radiation, each strip-shaped heating element 6 having the electrically conductive coating.
  • the electrically conductive coating is connected to a supply voltage via at least two connection points arranged on the outer edges of a heating element 6.
  • the electrically conductive coating conducts a heating current, whereby an energy conversion of heat in the form of infrared radiation occurs.
  • a voltage regulator connected to the heating foil 4 can be provided for controlling an electrical voltage applied to the electrically conductive coating.
  • bus bars 8 are located on the outer edge of the heating foil 4.
  • the bus bars 8 are elongated and contain copper and/or silver.
  • the bus bars 8 are used to distribute the heating current into the electrically conductive coating of the heating elements 6.
  • the bus bars 8 are electrically connected to the heating element 6 underneath at one connection point each.
  • the bus bars 8 are connected to a voltage source via additional supply lines 11.
  • 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.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Joining Of Glass To Other Materials (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

La présente invention concerne une vitre composite chauffable (10) utilisée comme vitre de toit pour un véhicule, comprenant : - une vitre extérieure (1) ayant une surface côté extérieur (I) et une surface côté intérieur (II) et - une vitre intérieure (2) ayant une surface côté extérieur (III) et une surface côté intérieur (IV), la vitre extérieure et la vitre intérieure étant jointes l'une à l'autre par une couche intermédiaire thermoplastique (3), et - un dispositif de chauffage infrarouge (5) formé par une feuille chauffante (4) et ayant un rayonnement infrarouge (9) pour un intérieur, le dispositif de chauffage infrarouge (5) étant prévu pour appliquer de la chaleur à un occupant de véhicule lorsque la vitre composite (10) est dans sa position installée, et la feuille chauffante (4) étant située entre la vitre intérieure (2) et la vitre extérieure (1) ou sur la surface côté intérieur (IV) de la vitre intérieure (2).
PCT/EP2024/063171 2023-06-07 2024-05-14 Vitre composite chauffable Ceased WO2024251466A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP23177979.4 2023-06-07
EP23177979 2023-06-07

Publications (1)

Publication Number Publication Date
WO2024251466A1 true WO2024251466A1 (fr) 2024-12-12

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ID=86731977

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Application Number Title Priority Date Filing Date
PCT/EP2024/063171 Ceased WO2024251466A1 (fr) 2023-06-07 2024-05-14 Vitre composite chauffable

Country Status (2)

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DE (1) DE202024002602U1 (fr)
WO (1) WO2024251466A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
DE112018006248T5 (de) * 2017-12-07 2020-09-03 Agp America S.A. Laminierte Verglasung mit einer funktionalen Schicht mit verbessertem Niedertemperatur-Verhalten
WO2022157022A1 (fr) * 2021-01-19 2022-07-28 Saint-Gobain Glass France Vitre dotée d'un champ de détection pouvant être chauffé

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
DE112018006248T5 (de) * 2017-12-07 2020-09-03 Agp America S.A. Laminierte Verglasung mit einer funktionalen Schicht mit verbessertem Niedertemperatur-Verhalten
WO2022157022A1 (fr) * 2021-01-19 2022-07-28 Saint-Gobain Glass France Vitre dotée d'un champ de détection pouvant être chauffé

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