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WO2025216167A1 - Vitre pour véhicule - Google Patents

Vitre pour véhicule

Info

Publication number
WO2025216167A1
WO2025216167A1 PCT/JP2025/013654 JP2025013654W WO2025216167A1 WO 2025216167 A1 WO2025216167 A1 WO 2025216167A1 JP 2025013654 W JP2025013654 W JP 2025013654W WO 2025216167 A1 WO2025216167 A1 WO 2025216167A1
Authority
WO
WIPO (PCT)
Prior art keywords
glass
main surface
vehicle window
glass plate
resin frame
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/JP2025/013654
Other languages
English (en)
Japanese (ja)
Inventor
怜史 金子
芳男 小坂
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.)
AGC Inc
Original Assignee
Asahi Glass Co Ltd
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 Asahi Glass Co Ltd filed Critical Asahi Glass Co Ltd
Publication of WO2025216167A1 publication Critical patent/WO2025216167A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • 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

Definitions

  • This disclosure relates to vehicle window glass.
  • a vehicle window glass with a resin frame which includes a glass plate, a resin frame provided around the periphery of the glass plate, and electrical components provided on the vehicle interior side of the glass plate, with the resin frame being molded integrally with the glass plate.
  • An adhesive is applied to the vehicle interior side of the resin frame to secure the resin frame to the vehicle body. If the area on the surface of the vehicle window glass with a resin frame from the adhesive application area is defined as a first section, and the area on the edge side of the vehicle window glass with a resin frame from the adhesive application area is defined as a second section, electrical components are located in either the first section or the second section, and conductive wires are located in a section different from the section in which the electrical components are located.
  • the conductive wires are linear members or flat harnesses in which conductive wires are covered with insulating tubes.
  • the electrical components and the conductive wires are electrically connected via a relay section located between the adhesive-applied surface and the vehicle exterior surface of the vehicle window glass with a resin frame, in a cross-sectional view of the vehicle window glass with a resin frame.
  • the relay portion is part of the resin frame (see, for example, Patent Document 1).
  • vehicle window glass with a resin frame (vehicle window glass) is fixed to an opening in the vehicle body and is not movable relative to the opening. Since adhesives cannot be used to make the vehicle window glass movable relative to the opening in the vehicle body, a sealant such as a weatherstrip is provided in the opening to seal the gap between the opening in the vehicle body and the vehicle window glass when the vehicle window glass is moved to the closed position that closes the opening in the vehicle body, ensuring waterproofing.
  • An embodiment of the present disclosure provides a movable vehicle window glass with excellent water-tight properties, including a resin frame that covers the outer edge of a laminated glass having a thin electrical component mounted between two glass sheets.
  • a vehicle window glass includes a movable laminated glass provided in an opening in a vehicle body, the laminated glass including a first glass sheet having a first main surface, a second main surface, and a first side surface; a second glass sheet having a third main surface, a fourth main surface, and a second side surface; and an intermediate film provided between the second main surface and the third main surface.
  • the laminated glass includes a thin electrical component provided between the second main surface and the third main surface; a conductive wire having a first end connected to the thin electrical component between the second main surface and the third main surface, and extending along the third main surface, the second side surface, and the fourth main surface to a position inside the outer edge of the fourth main surface in a plan view; and a resin frame that surrounds the first side surface and the second side surface and covers the outer edge of the fourth main surface, the resin frame having a contact portion to which a sealing member provided along the edge of the opening in the vehicle body is in close contact.
  • the conductive wire extends between the fourth main surface and the resin frame in a portion that overlaps with the sealing member in a plan view.
  • This disclosure provides a movable vehicle window glass with excellent water-tight properties, including a resin frame that covers the outer edge of laminated glass with a thin electrical component mounted between two glass sheets.
  • FIG. 10 is a diagram showing an example of the configuration of a vehicle equipped with a vehicle window glass according to an embodiment
  • 1 is a diagram showing an example of a cross-sectional configuration of a vehicle window glass according to an embodiment
  • 10A and 10B are diagrams illustrating an example of the configuration of a second end portion and an example of the configuration of a wire connected to the second end portion.
  • FIG. 10 is a diagram showing an example of a cross-sectional configuration of a vehicle window glass for comparison.
  • 1 is a diagram showing an example of a cross-sectional configuration of a vehicle window glass according to an embodiment
  • FIG. 4 is a diagram showing an example of a cross-sectional configuration of a vehicle window glass according to a first modified example of the embodiment.
  • FIG. 10 is a diagram showing an example of a cross-sectional configuration of a vehicle window glass according to a second modified example of the embodiment.
  • Fig. 1 is a diagram showing an example of the configuration of a vehicle 1 equipped with a vehicle window glass 100 according to an embodiment.
  • the vehicle window glass 100 may be provided in a movable manner with respect to a body 10 of the vehicle 1.
  • the vehicle window glass 100 is shown as a flat plate, but the vehicle window glass 100 may be curved in any one direction or in two or more directions.
  • Vehicle 1 is, for example, an automobile such as an EV (Electric Vehicle), a PHEV (Plug-in Hybrid Electric Vehicle), a HV (Hybrid Vehicle), a gasoline-powered vehicle, or a diesel-powered vehicle.
  • the vehicle may also be a train or steam locomotive.
  • a vehicle is an example of a moving object that transports passengers.
  • the vehicle body 10 has an opening 11RF for the roof glass, openings 11SD on the left and right sides, openings 11SDQ for the rear quarter windows on the left and right sides, an opening 11WS for the windshield (front window), and an opening 11BL for the rear glass.
  • the vehicle window glass 100 is movably installed in the roof glass opening 11RF of the vehicle body 10.
  • the vehicle window glass 100 is configured to be able to open and close freely relative to the opening 11RF by a drive mechanism such as a motor or regulator installed on the vehicle body 10 side.
  • the vehicle window glass 100 is not limited to being movably installed in the roof glass opening 11RF, but may also be movably installed in the openings 11SD on the left and right sides, the rear quarter window openings 11SDQ on the left and right sides, or the rear glass opening 11BL.
  • the rear glass may also be a glass hatch.
  • the vehicle window glass 100 When the vehicle window glass 100 is moved to the closed position that closes the opening 11RF, it has excellent water-stopping properties that seal the gap between the opening 11RF and the vehicle window glass 100. Details of the vehicle window glass 100 are described below.
  • Figure 2 is a diagram showing an example of the cross-sectional configuration of a vehicle window glass 100.
  • the vehicle window glass 100 shown in Figure 2 is the end portion on the -X direction side.
  • an XYZ coordinate system is defined and explained.
  • the direction parallel to the X axis (X direction), the direction parallel to the Y axis (Y direction), and the direction parallel to the Z axis (Z direction) are perpendicular to one another.
  • the XY plane is parallel to the horizontal plane
  • the Z direction is parallel to the vertical direction.
  • the -Z direction side may be referred to as the lower side or bottom, and the +Z direction side as the upper side or top, but this does not indicate a universal up-down relationship for the vehicle window glass 100.
  • a planar view refers to a view in the XY plane.
  • FIG. 2 shows a flange 12 provided at the opening 11RF of the vehicle body 10.
  • a weatherstrip 20 is attached to the flange 12.
  • the weatherstrip 20 is an example of a sealing member.
  • the opening 11RF is, for example, rectangular in plan view, and the weatherstrip 20 is a rectangular, annular sealing member attached along the edge of the opening 11RF.
  • the weatherstrip 20 has a contact portion 21.
  • the contact portion 21 is located at the upper end of the weatherstrip 20 and is elastically deformable in the Z direction.
  • the contact portion 21 is rectangular and annular in plan view.
  • the weatherstrip 20 is, for example, made of EPDM (ethylene propylene rubber) or TPV (olefin-based cross-linked thermoplastic elastomer) by extrusion molding.
  • EPDM ethylene propylene rubber
  • TPV olefin-based cross-linked thermoplastic elastomer
  • the distance in the Z direction between the vehicle window glass 100 and the flange 12 is exaggerated to make the weatherstrip 20 easier to see.
  • the shape of the weatherstrip 20 when the vehicle window glass 100 is not attached to the opening 11RF is shown by a dashed line.
  • the weatherstrip 20 is pressed in the -Z direction by the underside of the resin frame 140 of the vehicle window glass 100, elastically deforming in the -Z direction and coming into close contact with the underside of the resin frame 140. In this way, the weatherstrip 20 separates the inside and outside of the vehicle body 10 and prevents the intrusion of water, dust, etc.
  • the +X side of the weatherstrip 20 is the interior side of the vehicle body 10
  • the -X side of the weatherstrip 20 between the vehicle window glass 100 and the flange 12 is the exterior side of the vehicle body 10.
  • the vehicle window glass 100 includes a laminated glass 110, a light control panel 120, a flat harness 130, and a resin frame 140.
  • the light control panel 120 is an example of a thin electrical component.
  • the flat harness 130 is an example of a conductive wire.
  • the vehicle window glass 100 has a rectangular shape in a plan view.
  • planar shape of the vehicle window glass 100 is rectangular, but the planar shape of the vehicle window glass 100 is not limited to a rectangular shape and may be, for example, a quadrilateral shape such as a trapezoid, a triangle, a circle, an ellipse, or any other shape.
  • the planar shape refers to the shape when viewed from the normal direction of the laminated glass 110.
  • the vehicle window glass 100 is a Module Assy Window (MAW) (registered trademark) that includes laminated glass 110 and a resin frame 140 that is provided along the outer edge of the laminated glass 110.
  • MAW Module Assy Window
  • the vehicle window glass 100 can be installed directly into the opening 11RF of the vehicle body 10 with the resin frame 140 attached to the laminated glass 110, thereby simplifying the assembly work of the vehicle 1.
  • the following describes a configuration in which an example of a thin electrical component provided on a vehicle window glass 100 is a dimming panel 120 that is rectangular in plan view; however, the thin electrical component is not limited to the dimming panel 120, and the shape in plan view is not limited to a rectangular shape.
  • the thin electrical component may be a functional film, a heating wire or conductive film for heating, or the like, and the dimming panel 120 is an example of a functional film. Thin electrical components other than the dimming panel 120 will be described later.
  • the flat harness 130 shown in Figure 2 extends from the end of the vehicle window glass 100 on the -X direction side toward the center of the laminated glass 110 in a plan view.
  • the flat harness 130 is not provided on the +X direction side, -Y direction side, or +Y direction side of the vehicle window glass 100, which is rectangular in a plan view.
  • the vehicle window glass 100 has the same configuration on the +X, -Y, and +Y sides, except that a flat harness 130 is provided on the -X side.
  • the laminated glass 110 includes a first glass plate 111, a second glass plate 112, an intermediate film 113, and shielding layers 114 (114A, 114B).
  • the laminated glass 110 is formed by bonding the first glass plate 111 provided on the exterior side of the vehicle body 10 to the second glass plate 112 provided on the interior side of the vehicle body 10 via the intermediate film 113 disposed between the first glass plate 111 and the second glass plate 112.
  • a light control panel 120 and a flat harness 130 are provided in a portion between the first glass plate 111 and the second glass plate 112.
  • the total thickness of the laminated glass 110 is preferably 2.8 mm or more and 10 mm or less.
  • the total thickness of the laminated glass 110 is the thickness of the laminated glass 110 between the first main surface 111A on the outdoor side of the first glass plate 111 and the fourth main surface 112B on the indoor side of the second glass plate 112. If the total thickness of the laminated glass 110 is 2.8 mm or more, sufficient rigidity can be ensured. Furthermore, if the total thickness of the laminated glass 110 is 10 mm or less, sufficient transmittance can be ensured and the mass will not be too large. Note that the total thickness here, and the thicknesses described below, refer to the length in the Z direction.
  • the first glass plate 111 and the second glass plate 112 are transparent, flat glass plates.
  • the first glass plate 111 and the second glass plate 112 have the same size in a plan view and are bonded together by an intermediate film 113 with the four sides aligned in a plan view.
  • the first glass plate 111 and the second glass plate 112 have the same thickness, for example.
  • the first glass plate 111 and the second glass plate 112 shown in Figure 2 are flat, but may also have a curved shape that is curved in any one direction or two or more directions.
  • the first glass plate 111 has a first main surface 111A on the outdoor side, a second main surface 111B on the indoor side, and a first side surface 111C.
  • the first side surface 111C is an end surface connecting the first main surface 111A and the second main surface 111B.
  • the first side surface 111C surrounds the entire periphery of the first glass plate 111, which is rectangular in plan view, along the rectangular outer edge of the first glass plate 111; however, Figure 2 only shows the portion of the first side surface 111C that is parallel to the YZ plane at the end of the first glass plate 111 on the -X direction side.
  • the second glass plate 112 has a third major surface 112A on the outdoor side, a fourth major surface 112B on the indoor side, and a second side surface 112C.
  • the second side surface 112C is an end surface connecting the third major surface 112A and the fourth major surface 112B.
  • the second side surface 112C surrounds the entire periphery of the second glass plate 112, which is rectangular in plan view, along the rectangular outer edge of the second glass plate 112; however, Figure 2 only shows the portion of the second side surface 112C that is parallel to the YZ plane at the end of the second glass plate 112 on the -X direction side.
  • the first glass plate 111 and the second glass plate 112 may be inorganic glass or organic glass.
  • inorganic glass examples include, without particular limitation, soda-lime glass, aluminosilicate glass, borosilicate glass, alkali-free glass, and quartz glass.
  • the first glass plate 111 is preferably inorganic glass.
  • the first glass plate 111 and the second glass plate 112 are particularly preferably soda-lime glass.
  • clear glass, green glass containing a predetermined amount or more of iron, UV-cut green glass, privacy glass, etc. can be used.
  • the first glass plate 111 and the second glass plate 112 are inorganic glass
  • the first glass plate 111 and the second glass plate 112 may be either untempered glass or tempered glass.
  • Untempered glass is made by forming molten glass into a plate shape and slowly cooling it.
  • Tempered glass is made by forming a compressive stress layer on the surface of untempered glass, and may be either air-cooled tempered glass or chemically tempered glass.
  • the glass surface may be strengthened by generating a compressive stress layer on the glass surface due to the temperature difference between the glass surface and the interior of the glass, such as by rapidly cooling a glass plate that has been uniformly heated during bending from a temperature near its softening point.
  • the tempered glass is chemically tempered glass, the glass surface may be strengthened by generating compressive stress on the glass surface using an ion exchange method or the like after bending.
  • glass plates that absorb ultraviolet or infrared light may be used as the first glass plate 111 and the second glass plate 112.
  • the first glass plate 111 and the second glass plate 112 are preferably transparent, but may also be colored to the extent that transparency is not impaired.
  • organic glass materials include transparent resins such as polycarbonate, acrylic resins such as polymethyl methacrylate, polyvinyl chloride, and polystyrene.
  • the laminated glass 110 When attached to the vehicle body 10, the laminated glass 110 may have a curved shape that is convex on the exterior side.
  • the laminated glass 110 may have a single-curve shape that is bent in only one direction, or a compound-curve shape that is bent in two directions.
  • the two directions are, for example, the up-down direction when the laminated glass 110 is attached to the vehicle body 10, and the left-right direction that is perpendicular to the up-down direction.
  • Gravity forming, press forming, roller forming, or the like is used to bend the laminated glass 110.
  • the radius of curvature of the laminated glass 110 may be 1,000 mm or more and 100,000 mm or less.
  • the thickness of the first glass plate 111 located on the exterior side and the thickness of the second glass plate 112 located on the interior side may be the same or different.
  • the thickness of the first glass plate 111 is preferably 1.0 mm or more and 4.2 mm or less. If the thickness of the first glass plate 111 is 1.0 mm or more, sufficient strength is provided for stone chip resistance, etc., and if it is 4.2 mm or less, the mass of the laminated glass 110 is not too large, which is preferable in terms of fuel efficiency of the vehicle 1.
  • the thickness of the second glass plate 112 is preferably 0.3 mm or more and 4.2 mm or less.
  • the second glass plate 112 is 0.3 mm or more, the second glass plate 112 is easy to handle, and if it is 4.2 mm or less, the mass of the laminated glass 110 is not too large.
  • the thickness of the second glass plate 112 may be 0.5 mm or more and 2.7 mm or less. It is preferable that the thickness of each of the first glass sheet 111 and the second glass sheet 112 is 1.8 mm or less, as this allows the laminated glass 110 to achieve both lightweight and sound insulation. If the thickness of the second glass sheet 112 is 1.2 mm or less, the second glass sheet 112 may be chemically strengthened glass.
  • the compressive stress value of the glass surface is 300 MPa or more, and the depth of the compressive stress layer is 2 ⁇ m or more. It is preferable that the thickness referred to here is the thickness of the thinnest portion of the first glass sheet 111 and the second glass sheet 112.
  • the first glass plate 111 preferably has sufficient impact resistance for use in a vehicle. Impact resistance here can be evaluated, for example, using the impact resistance test in UN-R43.
  • An impact resistance test is a test to determine whether safety glass, such as laminated glass for automobiles, has the necessary adhesion or strength to withstand the impact of a small, hard flying object. Specifically, the test is performed by maintaining the laminated glass (safety glass) at a predetermined temperature, placing the first main surface 111A of the first glass plate 111 facing up on a support frame, and then allowing a steel ball to drop from a predetermined height onto it.
  • At least one of the first main surface 111A of the first glass plate 111 and the fourth main surface 112B of the second glass plate 112 may be provided with a coating that has water-repellent properties and UV- or infrared-blocking properties, a coating that has low reflectivity, low radiation properties, and anti-fouling properties, or a coating that has anti-condensation properties.
  • at least one of the second main surface 111B of the first glass plate 111 and the third main surface 112A of the second glass plate 112 may be provided with a coating that blocks UV- or infrared-blocking properties, has low radiation properties, absorbs visible light, or is colored.
  • a low-radiation coating may be formed on the fourth main surface 112B of the second glass plate 112.
  • At least one of the first glass plate 111 and the second glass plate 112 may have one or more of the following: a water-repellent layer, an ultraviolet blocking layer, an infrared reflective layer, a low reflectance layer, a low emissivity layer, a condensation prevention layer, a visible light absorbing layer, and a colored layer.
  • the intermediate film 113 is provided between the first glass plate 111 and the second glass plate 112.
  • the intermediate film 113 preferably surrounds the side surface of the dimming panel 120.
  • the side surface of the dimming panel 120 is an end surface connecting the surface on the +Z direction side and the surface on the ⁇ Z direction side of the dimming panel 120.
  • a first end 131 of the flat harness 130 is connected to the end on the ⁇ X direction side of the dimming panel 120. Therefore, the intermediate film 113 surrounds not only the side surface of the dimming panel 120, but also the joint between the dimming panel 120 and the first end 131, and a first portion 130A of the flat harness 130 located between the first glass plate 111 and the second glass plate 112.
  • the intermediate film 113 includes a first intermediate film 113A bonded to the first glass plate 111, a second intermediate film 113B bonded to the second glass plate 112, and a frame-shaped third intermediate film 113C located between the first intermediate film 113A and the second intermediate film 113B and surrounding the side surface of the dimming panel 120.
  • the third intermediate film 113C surrounds the side surface of the dimming panel 120, but the third intermediate film 113C need not be provided.
  • the third intermediate film 113C is not provided, as long as the side surface of the dimming panel 120 is located inward in plan view from the first side surface 111C of the first glass plate 111 or the second side surface 112C of the second glass plate 112, the side surface of the dimming panel 120 will be surrounded by deformation of at least one of the first intermediate film 113A and the second intermediate film 113B during compression bonding in the manufacturing process of the laminated glass 110. If the thickness of the dimming panel 120 is large, the difference in thickness between the area where the dimming panel 120 is present and the area outside the dimming panel 120 will be large in plan view, so it is preferable to provide a third intermediate film 113C to fill the difference in thickness.
  • the following describes a configuration in which the first interlayer film 113A, the second interlayer film 113B, and the third interlayer film 113C are separate bodies that are joined together during the manufacture of the laminated glass 110.
  • this configuration is not limited to this, and the interlayer film 113 may be integral, for example, in cases in which the interlayer film 113 is formed by pouring a highly fluid material between the first glass plate 111 and the second glass plate 112.
  • Thermoplastic resins are often used for the intermediate film 113, such as plasticized polyvinyl acetal resins, plasticized polyvinyl chloride resins, saturated polyester resins, plasticized saturated polyester resins, polyurethane resins, plasticized polyurethane resins, ethylene-vinyl acetate copolymer resins, ethylene-ethyl acrylate copolymer resins, cycloolefin polymer resins, and ionomer resins.
  • Resin compositions containing modified hydrogenated block copolymers as described in Japanese Patent No. 6,065,221, can also be suitably used.
  • plasticized polyvinyl acetal resins are preferably used as materials for the intermediate film 113 because they offer an excellent balance of properties such as transparency, weather resistance, strength, adhesive strength, penetration resistance, impact energy absorption, moisture resistance, heat insulation, and sound insulation.
  • thermoplastic resins may be used alone or in combination of two or more types.
  • the term "plasticized" in the above-mentioned plasticized polyvinyl acetal resins means that the resin has been plasticized by adding a plasticizer. The same applies to other plasticized resins.
  • plasticizers when encapsulating the dimming panel 120 in the interlayer 113, certain plasticizers may cause deterioration depending on the type of material being encapsulated. In such cases, it is preferable to use a resin that does not substantially contain that plasticizer. In other words, it may be preferable for the interlayer 113 to be free of plasticizers. Examples of resins that do not contain plasticizers include ethylene-vinyl acetate copolymer resins.
  • polyvinyl acetal resin examples include polyvinyl formal resin obtained by reacting polyvinyl alcohol (hereinafter sometimes referred to as PVA) with formaldehyde, polyvinyl acetal resin in the narrow sense obtained by reacting PVA with acetaldehyde, and polyvinyl butyral resin (hereinafter sometimes referred to as PVB) obtained by reacting PVA with n-butylaldehyde.
  • PVB polyvinyl butyral resin obtained by reacting PVA with n-butylaldehyde.
  • PVB is particularly preferred due to its excellent balance of properties such as transparency, weather resistance, strength, adhesive strength, penetration resistance, impact energy absorption, moisture resistance, heat insulation, and sound insulation.
  • These polyvinyl acetal resins may be used alone or in combination of two or more types.
  • the intermediate film 113 may be a curable transparent resin also known as Optical Clear Resin (OCR) or a transparent adhesive sheet also known as Optical Clear Adhesive (OCA).
  • OCR Optical Clear Resin
  • OCA Optical Clear Adhesive
  • Using a curable transparent resin or transparent adhesive sheet makes it possible to produce a laminate (laminated glass) at room temperature, which is more desirable.
  • Resins such as acrylic, silicone, urethane acrylate, and epoxy are used as curable transparent resins and transparent adhesive sheets. These curable transparent resins and transparent adhesive sheets may be used alone or in combination of two or more types.
  • the material forming the intermediate film 113 is not limited to thermoplastic resin.
  • the intermediate film 113 may also contain functional particles such as infrared absorbers, ultraviolet absorbers, and luminescent agents.
  • the intermediate film 113 may also have a colored portion called a shade band.
  • the thickness of the interlayer 113 is preferably 0.3 mm or more at its thinnest point. If the thickness of the interlayer 113 at its thinnest point is 0.3 mm or more, the impact resistance required for the laminated glass 110 will be sufficient.
  • the thickness of the interlayer 113 is preferably 3 mm or less at its thickest point. If the maximum thickness of the interlayer 113 is 3 mm or less, the mass of the laminated glass 110 will not become too large.
  • the maximum thickness of the interlayer 113 is more preferably 2.8 mm or less, and even more preferably 2.6 mm or less.
  • the thickness of the intermediate film 113 refers to the thickness of the intermediate film 113 only, excluding the thickness of the dimming panel 120. Therefore, the thickness of the intermediate film 113 refers to the thickness from the interface (second major surface 111B) of the first intermediate film 113A with the first glass plate 111 to the interface (third major surface 112A) of the second intermediate film 113B with the second glass plate 112, minus the thickness of the dimming panel 120.
  • the thickest part of the intermediate film 113 is, for example, the part that does not sandwich the dimming panel 120 (the part that does not overlap with the dimming panel 120 in a planar view).
  • the thinnest part of the intermediate film 113 is, for example, the part that sandwiches the dimming panel 120 (the part that overlaps with the dimming panel 120 in a planar view).
  • first intermediate film 113A, the second intermediate film 113B, and the third intermediate film 113C included in the intermediate film 113 are all formed from the same material, but some or all of the first intermediate film 113A, the second intermediate film 113B, and the third intermediate film 113C may be formed from different materials.
  • first intermediate film 113A and the second intermediate film 113B may be formed from the same material, and the third intermediate film 113C may be formed from a different material.
  • the interlayer film 113 for example, one of the above resin materials that will become the interlayer film is appropriately selected and extruded in a heated, molten state using an extruder.
  • the extrusion conditions such as the extrusion speed of the extruder, are set to be uniform.
  • the resin film produced by extrusion molding is then stretched as necessary to give it a curvature that matches the design of the laminated glass 110, thereby completing the interlayer film 113.
  • the shielding layer 114 is an opaque layer.
  • the shielding layer 114 is, for example, an opaque colored (e.g., black) ceramic layer.
  • the shielding layer 114 may be a colored interlayer or colored film with light-blocking properties, or a combination of a colored interlayer and a colored ceramic layer.
  • the colored film may be integrated with an infrared reflective film or the like.
  • "opaque” means that the visible light transmittance is 5% or less, preferably 3% or less, more preferably 1% or less, and may even be substantially 0%.
  • the shielding layer 114 prevents ultraviolet light from deteriorating the resin, such as urethane, that holds the laminated glass 110 to the vehicle body 10.
  • the shielding layer 114 can be formed, for example, by applying a ceramic color paste containing a black pigment and a fusible glass frit onto a glass plate by screen printing or the like, and then firing it, but is not limited to this.
  • the shielding layer 114 can also be formed, for example, by applying an organic ink containing a black or dark color pigment onto a glass plate by screen printing or the like, and then drying it.
  • the shielding layer 114 includes shielding layers 114A and 114B.
  • shielding layer 114A is provided on the second major surface 111B of the first glass plate 111
  • shielding layer 114B is provided on the fourth major surface 112B of the second glass plate 112.
  • shielding layers 114A and 114B are provided in a strip shape along the outer edge of the laminated glass 110 in a planar view. Because the laminated glass 110 is rectangular in a planar view, shielding layers 114A and 114B are rectangular ring-shaped in a planar view.
  • the shielding layer 114A extends in a band shape from the outer edge of the first glass plate 111 toward the center of the first glass plate 111 on the second main surface 111B of the first glass plate 111.
  • the shielding layer 114A has a rectangular annular shape surrounding the light control panel 120 in a plan view.
  • the first portion 130A of the flat harness 130 which is located between the first glass plate 111 and the second glass plate 112, and the outer edge portion of the dimming panel 120 are located below the shielding layer 114A.
  • the first end 131 of the flat harness 130 is connected to the end of the dimming panel 120 on the -X direction side, between the first glass plate 111 and the second glass plate 112.
  • the first portion 130A of the flat harness 130 extends from an edge extending in the Y direction on the -X direction side of the first glass plate 111 to a first end 131 that is connected to an edge extending in the Y direction on the -X direction side of the dimming panel 120.
  • the flat harness 130 does not exist on the +X direction side, +Y direction side, or -Y direction side of the dimming panel 120.
  • An intermediate film 113 is provided between the shielding layer 114A and the first portion 130A of the flat harness 130. In the area where the shielding layer 114A and the dimming panel 120 overlap in a planar view, the intermediate film 113 is provided between the shielding layer 114A and the dimming panel 120.
  • the shielding layer 114A conceals the outer edge of the dimming panel 120 and the first portion 130A of the flat harness 130.
  • the inner edge of the rectangular annular shielding layer 114A is located inside the outer edge of the dimming panel 120 and does not overlap with the dimming section of the dimming panel 120.
  • the dimming section is an area where transmittance changes.
  • the width of the shielding layer 114A need only be wide enough to conceal the peripheral portion of the dimming panel 120 and the first portion 130A of the flat harness 130.
  • the width of the shielding layer 114A is the width in the X direction in Figure 2, and is the width in the direction perpendicular to the inner edge of the rectangular ring-shaped shielding layer 114A in a plan view.
  • the shielding layer 114B extends in a band shape from the outer edge of the second glass plate 112 toward the center of the second glass plate 112 on the fourth main surface 112B of the second glass plate 112.
  • the shielding layer 114B is provided to conceal the extending portion 142 of the resin frame 140 and the portion of the flat harness 130 on the second end 132 side.
  • the shielding layer 114B is provided on the outer edge portion of the fourth main surface 112B.
  • the outer edge portion of the fourth main surface 112B refers to the outer edge of the fourth main surface 112B and a portion extending inward from the outer edge.
  • "somewhat inward from the outer edge” refers to a portion extending inward from the outer edge by approximately 1/10 to 1/5 of the length of the fourth main surface 112B in the X and Y directions.
  • the extension portion 142 of the resin frame 140 has a rectangular ring shape in a plan view and is provided on the underside of the shielding layer 114B. Furthermore, the third portion 130C of the flat harness 130 located below the second glass plate 112 is provided on the underside of the shielding layer 114B and is covered by the resin frame 140, and extends from the end of the second glass plate 112 on the -X direction side toward the center of the second glass plate 112 to the second end portion 132.
  • the shielding layer 114B has a rectangular ring shape in plan view, and extends inward beyond the inner edge 142A of the extending portion 142 of the resin frame 140, and further inward beyond the second end 132 of the flat harness 130. Specifically, the shielding layer 114B extends inward beyond the inner edge 142A of the extending portion 142 on the -X direction side, and further inward beyond the second end 132. Furthermore, the shielding layer 114B extends inward beyond the inner edge 142A of the extending portion 142 on the +X direction side, -Y direction side, and +Y direction side.
  • the width of the shielding layer 114B needs only to be wide enough to conceal the extension portion 142 of the resin frame 140 and the portion of the flat harness 130 located below the second glass plate 112.
  • the width of the shielding layer 114B is the width in the X direction in Figure 2, and is the width in the direction perpendicular to the inner edge of the rectangular ring-shaped shielding layer 114B in a plan view.
  • the shielding layer 114A may be provided on the lower surface of the first intermediate film 113A, or may be embedded inside the first intermediate film 113A.
  • the shielding layer 114 is not limited to a configuration having a shielding layer 114A formed on the second major surface 111B and a shielding layer 114B formed on the fourth major surface 112B, but may be configured with either the shielding layer 114A or the shielding layer 114B alone; these configurations will be described later using Figures 5A and 5B.
  • the light control panel 120 is an example of a thin electrical component and a functional film.
  • the term "thin" means that the light control panel 120 has a thickness thin enough to be disposed between the first glass plate 111 and the second glass plate 112 of the laminated glass 110.
  • the dimming panel 120 has a rectangular shape in a plan view, and is arranged so as to fit within the four sides of the outer edge of the rectangular laminated glass 110 in a plan view.
  • a form in which the dimming panel 120 has a rectangular shape in a plan view is described, but the shape of the dimming panel 120 in a plan view is not limited to a rectangular shape.
  • the dimming panel 120 may have a rectangular shape or any other shape that matches the shape of the laminated glass 110 in a plan view.
  • the dimming panel 120 may have any shape that fits within the outer edge of the laminated glass 110, without matching the shape of the laminated glass 110 in a plan view.
  • the dimming panel 120 is, as an example, a component whose transmittance changes depending on the power supplied via the flat harness 130.
  • a form will be described in which the transmittance of the dimming panel 120 changes between two states, high and low, depending on whether or not power is supplied via the flat harness 130.
  • the dimming panel 120 turns on and enters a high transmittance state, and when the power supply is cut off, the dimming panel 120 turns off and enters a low transmittance state. Switching between supplying and not supplying power via the flat harness 130 serves as a control signal that switches the dimming panel 120 on and off.
  • the dimming panel 120 may also be a panel whose transmittance changes depending on the duty ratio of a PWM (Pulse Width Modulation) pulse signal.
  • a PWM Pulse Width Modulation
  • it may be a resin or glass panel to which a dimming device whose transmittance changes depending on the duty ratio of a PWM pulse signal is attached.
  • dimming devices include suspended particle devices (SPDs), polymer dispersed liquid crystals (PDLCs), polymer network liquid crystals (PNLCs), guest-host liquid crystals, photochromic, electrochromic, and electrokinetic devices.
  • the transmittance of the dimming panel 120 changes in two stages, it is transparent when the transmittance is high, and changes to an opaque state such as gray when the transmittance is low, and is in a state where it transmits almost no light. Furthermore, when the dimming panel 120 is driven with a PWM pulse signal, the transmittance can be controlled in multiple stages between the transparent state and the opaque state; as an example, the transmittance of the dimming panel 120 is at its minimum when the duty ratio of the PWM pulse signal is 0%.
  • the dimming panel 120 only needs to be located in the area of the laminated glass 110 that blocks the opening 11RF when the laminated glass 110 is completely closed to the vehicle body 10. This is because the dimming panel 120 is positioned so that light can enter the interior of the vehicle from the outside through the opening 11RF when the laminated glass 110 is completely closed to the vehicle body 10.
  • the thin electrical component is not limited to the dimming panel 120, but may be a functional film other than the dimming panel 120, or a heating wire or conductive film for heating, etc.
  • the functional film is a component that adds additional functionality to the laminated glass 110.
  • Examples of functional films other than the light control panel 120 include light-emitting display films and solar cell films.
  • Light-emitting display films are film-like display devices with an array of pixels made up of light-emitting elements, and can display images by passing electricity through the light-emitting elements of each pixel.
  • Light-emitting elements include organic EL (electroluminescence) elements and inorganic EL elements.
  • Solar cell films are films with photoelectric conversion elements that convert light energy into electricity formed on them.
  • heating wires include a heating wire that functions as a defogger to remove fog (water droplets) from the surface of the vehicle window glass 100, and a heating wire that functions as a de-icer to efficiently melt ice or snow that has adhered to the outer surface of the vehicle window glass 100.
  • These heating wires are, for example, made of tungsten wire.
  • the pitch between the heating wires in the X direction is, for example, approximately 2 mm.
  • the value of the current passed through the heating wire may be set higher (for example, approximately twice as high) than when it functions as a defogger.
  • the heating wire that functions as a de-icer is thicker than the heating wire that functions as a defogger.
  • the heating wire that functions as a defogger is, for example, multiple heating wires extending horizontally, and, for example, arranged at equal intervals.
  • the heating wire that functions as a de-icer is, for example, multiple heating wires extending vertically (up and down), which is perpendicular to the horizontal direction, and, for example, arranged at equal intervals.
  • a conductive film for heating is a transparent conductive film that functions as a defogger or deicer. Such a transparent conductive film can be used in place of the heating wire described above.
  • transparent conductive films include metal films such as Ag films, metal oxide films such as ITO (indium tin oxide) films, and resin films containing conductive particles.
  • the transparent conductive film may also be a laminate of multiple types of films.
  • an anti-fogging film may be provided on the fourth major surface 112B of the second glass plate 112.
  • the anti-fogging film is a film that contains a water-absorbent polymer or a hydrophilic polymer and has high water absorption properties.
  • the structure of the resin frame 140 which will be described later, can simplify the configuration of a vehicle window glass 100 that includes various types of thin electrical components.
  • the flat harness 130 is provided to transmit power, control signals, and the like to the thin electrical components.
  • a description will be given of a vehicle window glass 100 including the flat harness 130.
  • the flat harness 130 is thin, it is suitable for being sandwiched between the first glass sheet 111 and the second glass sheet 112.
  • the vehicle window glass 100 may be configured to include a cable or the like in which an insulating coating is applied to a conductor, instead of the flat harness 130.
  • the flat harness 130 is located in the center in the Y direction of the edge extending in the Y direction on the -X direction side of the laminated glass 110 in a plan view, is folded back at the second side surface 112C of the second glass plate 112, and extends along the third main surface 112A and the fourth main surface 112B toward the center of the laminated glass 110.
  • the tip of the flat harness 130 extending along the third main surface 112A is the first end 131
  • the tip of the flat harness 130 extending along the fourth main surface 112B is the second end 132.
  • the second end 132 may be connected to an ECU (Electronic Control Unit) that controls the dimming panel 120, a power source, etc.
  • ECU Electronic Control Unit
  • the flat harness 130 only needs to be provided on one of the four edge sides of the laminated glass 110 in a plan view, and it does not have to be located at the center of the edge length; it may be offset from the center, or it may be located at the end of the edge, etc.
  • the flat harness 130 has a first portion 130A, a second portion 130B, and a third portion 130C.
  • the first portion 130A is located between the first glass plate 111 and the second glass plate 112.
  • the second portion 130B is a portion that extends in the Z direction along the second side surface 112C of the second glass plate 112.
  • the third portion 130C is a portion that extends along the fourth main surface 112B of the second glass plate 112.
  • the flat harness 130 has a substrate 130-1, wiring 130-2, and a coverlay 130-3.
  • two wirings 130-2 are formed on one surface of the substrate 130-1 and are covered by the coverlay 130-3.
  • the substrate 130-1 and the coverlay 130-3 are fixed to each other by laminating them with the wiring 130-2 sandwiched between them or by being bonded with an adhesive.
  • the two wirings 130-2 are connected to the positive and negative terminals of the dimming panel 120 at the first end 131.
  • the substrate 130-1 and coverlay 130-3 are made of, for example, a flexible resin film such as polyimide, and the wiring 130-2 is, for example, wiring made by patterning copper foil or the like. While the explanation here is of the substrate 130-1 and coverlay 130-3, the substrate 130-1 and coverlay 130-3 are both insulating layers and may have the same configuration or different configurations.
  • Such a flat harness 130 can be realized, for example, by FPC (Flexible Printed Cable), FFC (Flexible Flat Cable), or ribbon cable.
  • FPC Flexible Printed Cable
  • FFC Flexible Flat Cable
  • ribbon cable ribbon cable
  • the first portion 130A is sandwiched between the first glass plate 111 and the second glass plate 112 at the end of the laminated glass 110 on the -X direction side, and is sandwiched between the second intermediate film 113B and the third intermediate film 113C.
  • the substrate 130-1, wiring 130-2, and coverlay 130-3 are stacked in this order from the -Z direction side to the +Z direction side.
  • the first portion 130A extends from an edge extending in the Y direction on the -X direction side of the first glass plate 111 to the first end 131 on the +X direction side.
  • the first end 131 is connected to a terminal (not shown) at the end of the -X direction side of the dimming panel 120.
  • the first portion 130A extends in the X direction between the first end 131 and the connection portion between the first portion 130A and the second portion 130B.
  • the first portion 130A and the dimming panel 120 have an overlapping portion between the first glass plate 111 and the second glass plate 112, but there need not be an overlapping portion.
  • the second portion 130B is provided on the second side surface 112C of the second glass plate 112, and extends in the Z direction between the connection between the first portion 130A and the second portion 130B and the connection between the second portion 130B and the third portion 130C.
  • the second portion 130B is provided directly on the second side surface 112C.
  • the substrate 130-1, wiring 130-2, and coverlay 130-3 are stacked in this order from the +X direction side to the -X direction side.
  • the third portion 130C is provided on the underside of the shielding layer 114B formed on the fourth major surface 112B of the second glass plate 112, and extends in the X direction between the connection with the second portion 130B and the second end portion 132.
  • the substrate 130-1, wiring 130-2, and coverlay 130-3 are stacked in this order from the +Z direction side to the -Z direction side.
  • the third portion 130C is attached to the underside of the shielding layer 114B by, for example, double-sided tape (not shown).
  • the double-sided tape may be any type of double-sided tape that can adhere the flat harness 130 to the underside of the shielding layer 114B.
  • an adhesive layer or the like may be used instead of the double-sided tape.
  • the flat harness 130 is bent twice along the second side surface 112C from the first end 131 to the second end surface 132, and extends along the third main surface 112A, the second side surface 112C, and the fourth main surface 112B.
  • the flat harness 130 when the flat harness 130 extends along the third main surface 112A, it means that other components such as the second intermediate film 113B may be present between the flat harness 130 and the third main surface 112A. Furthermore, when the flat harness 130 extends along the fourth main surface 112B, it means that other components such as the shielding layer 114B may be present between the flat harness 130 and the fourth main surface 112B. Furthermore, although the flat harness 130 is provided directly on the second side surface 112C, when the flat harness 130 extends along the second side surface 112C it means that other components such as a shielding layer may be present between the flat harness 130 and the second side surface 112C.
  • the flat harness 130 which has a structure in which wiring 130-2 provided on a substrate 130-1 is covered with a coverlay 130-3, is extremely thin and highly flexible. This makes it extremely easy to bend the wiring 130-2 from the end on the -X direction side of the dimming panel 120, which is provided between the first glass plate 111 and the second glass plate 112, along the second side surface 112C and the fourth main surface 112B, and route it to the second end 132. Furthermore, ease of routing leads to improved electrical reliability of the wiring 130-2, as breaks and damage to the wiring 130-2 are less likely to occur. Using the flat harness 130 not only makes it easier to route the wiring 130-2, but also improves its electrical reliability.
  • Fig. 3 is a diagram showing an example of the configuration of the second end 132 and an example of the configuration of the wire 150 connected to the second end 132.
  • the wire 150 may be included as a part of a conductive wire as a component of the vehicle window glass 100.
  • Figure 3 shows, upside down from Figure 2, an enlarged view of the configuration of the vehicle window glass 100 over a length Y1 in the Y direction, including the second end 132.
  • Length Y1 is the length of a portion of the entire length of the vehicle window glass 100 in the Y direction, including the second end 132.
  • Figure 3 shows, from the +Z direction side to the -Z direction side, the second glass sheet 112, the shielding layer 114B, the third portion 130C of the flat harness 130, and the extension portion 142 of the resin frame 140.
  • the second end 132 is T-shaped in a planar view, as shown in Figure 3.
  • Figure 3 shows two wirings 130-2 and a coverlay 130-3 at the second end 132.
  • the substrate 130-1 is the same size as the coverlay 130-3 in a planar view, and is located on the +Z direction side of the wiring 130-2, so it is omitted here.
  • the shape of the second end 132 in a planar view is not limited to a T-shape, and may be any shape.
  • the coverlay 130-3 has two openings 130-3A at the second end 132.
  • the two openings 130-3A expose the ends of the two wirings 130-2.
  • the portions of the two wirings 130-2 exposed from the two openings 130-3A are two terminals 130-2A.
  • the two terminals 130-2A are connected to the conductors 151 of the two wires 150, respectively.
  • the terminals 130-2A and the conductors 151 are connected by soldering.
  • the terminals 130-2A and the conductors 151 may also be connected by welding, bonding with a conductive adhesive, or welding.
  • a terminal may be joined to the conductors 151, and the terminal joined to the conductors 151 may be connected to the terminal 130-2A by soldering, welding, bonding with a conductive adhesive, welding, etc.
  • the wire 150 is constructed by covering a single conductor 151 with a circular cross section with an insulating layer. This type of wire 150 is less expensive and has a lower resistance than the flat harness 130, allowing for cost reductions in the vehicle window glass 100.
  • the connection between the terminal 130-2A and the conductor 151 is located on the interior side, sealed by the weatherstrip 20 and the resin frame 140 of the vehicle window glass 100, and is therefore protected from water and dust.
  • the wire 150 can be routed to a position that overlaps the shielding layer 114B in a plan view.
  • the wire 150 can also be concealed by covering it with a panel or the like on the interior side of the vehicle body 10.
  • connection portion between the terminal 130-2A and the conductor 151 may be sealed by the extension portion 142 of the resin frame 140.
  • the connection portion may be located on the -X direction side of the second end portion 132 shown in FIG. 2.
  • the connection portion may be located near the outer edge of the second glass plate 112 on the -X direction side.
  • the flat harness 130 only needs to be located in at least the portion extending between the second main surface 111B and the third main surface 112A, and the wire 150 may be routed around the outside of the laminated glass 110.
  • a flat harness other than flat harness 130 may be connected to terminal 130-2A.
  • the second end 132 may be extended to the outside of the laminated glass 110 and the resin frame 140 in plan view.
  • the resin frame 140 is a rectangular, annular frame-shaped member formed along the rectangular outer edge of the laminated glass 110 in a plan view.
  • the resin frame 140 has a frame portion 141 and an extension portion 142.
  • the resin frame 140 is provided continuously around the entire outer edge of the laminated glass 110, but it may also be formed on only a portion of the outer edge of the laminated glass 110 and be interrupted along the way.
  • the frame-shaped member here includes a configuration with an interrupted section along the way.
  • the frame portion 141 is a rectangular frame-shaped portion that surrounds the first side surface 111C of the first glass plate 111 and the second side surface 112C of the second glass plate 112.
  • the frame portion 141 covers the joint between the first glass plate 111 and the second glass plate 112 and the second portion 130B of the flat harness 130 provided on the second side surface 112C of the second glass plate 112, and seals the entire first side surface 111C of the first glass plate 111 and the second side surface 112C of the second glass plate 112.
  • the frame portion 141 has a protrusion 141A on the outer edge of the upper end in a plan view. As shown in FIG. 2, the protrusion 141A protrudes outward from the outer end of the upper end of the frame portion 141 in a plan view, and is triangular in an XZ cross section where the frame portion 141 extends in the Y direction, and is triangular in a YZ cross section where the frame portion 141 extends in the X direction.
  • the protrusion 141A protrudes to match the chamfered shape of the opening 11RF.
  • the extension portion 142 extends from the lower end of the frame portion 141 toward the center of the laminated glass 110 to an inner edge 142A in a plan view.
  • the extension portion 142 has a rectangular ring shape along the edge of the opening 11RF in a plan view, and the inner edge 142A has a rectangular shape in a plan view.
  • the inner edge 142A is composed of two sides parallel to the X direction and two sides parallel to the Y direction.
  • the extension portion 142 covers the lower end of the frame portion 141, the lower surface of the shielding layer 114B, and the third portion 130C of the flat harness 130, and is integrated with the frame portion 141 to seal the lower surface of the shielding layer 114B and the third portion 130C of the flat harness 130.
  • the extension portion 142 covers the lower surface of the shielding layer 114B and the third portion 130C of the flat harness 130, and therefore covers the outer edge portion of the fourth main surface 112B via the shielding layer 114B and the third portion 130C.
  • the meaning of the outer edge portion of the fourth main surface 112B for the extension portion 142 is the same as the meaning of the outer edge portion of the fourth main surface 112B for the shielding layer 114B.
  • the resin frame 140 Since the inner edge 142A is located outside the inner edge of the shielding layer 114B in a plan view, when the vehicle window glass 100 is viewed from the +Z direction, the resin frame 140 is hidden by the shielding layer 114B and cannot be seen.
  • the extension portion 142 has a contact portion 142B.
  • the contact portion 142B is a rectangular, annular portion located outside the inner edge 142A of the underside of the extension portion 142 in a plan view, and inside the outer edge of the extension portion 142.
  • the contact portion 142B is the portion that contacts the abutting portion 21 of the weatherstrip 20 when the vehicle window glass 100 is attached to the opening 11RF.
  • the abutting portion 21 of the weatherstrip 20 extends upward, as shown by the dashed line in FIG. 2.
  • the abutting portion 21 is pressed downward by the contact portion 142B, as shown by the solid line in FIG. 2, and is thereby in close contact with the contact portion 142B. In this way, the weatherstrip 20 and the vehicle window glass 100 are sealed together.
  • the extension portion 142 has a rectangular ring shape that follows the edge of the opening 11RF in a plan view, and the contact portion 142B is rectangular in a plan view, so that the contact portion 142B and the weatherstrip 20 can seal the entire periphery of the opening 11RF, ensuring good watertightness.
  • the vehicle window glass 100 is movable, it is opened and closed many times as the vehicle 1 continues to be used. In such cases, if the vehicle window glass 100 is moved to the closed position, the opening 11RF can be reliably sealed by the contact portion 142B and the abutment portion 21 of the weatherstrip 20. Furthermore, since the contact portion 142B and the abutment portion 21 are in close contact around the entire periphery of the opening 11RF without the need for a flat harness 130 or the like being sandwiched between them, excellent watertightness can be maintained for an extended period of time. Furthermore, since the flat contact portion 142B is in close contact with the abutment portion 21 and is not in contact with structures other than the contact portion 142B, the durability of the weatherstrip 20 can be improved.
  • the resin frame 140 is made of resin, for example. There are no particular limitations on the resin used for the resin frame 140 as long as it can form a product integrally molded with the laminated glass 110, but it is preferable that the resin be one that can be used in injection molding. Materials that can be used in injection molding are those that can be heated and melted and then solidified by a subsequent cooling process.
  • the resin frame 140 and the vehicle window glass 100 including the resin frame 140 are formed as follows. First, the light control panel 120 is sandwiched between the first glass plate 111 and the second glass plate 112 via the intermediate film 113, and the flat harness 130 connected to the light control panel 120 is folded along the second side surface 112C and the fourth main surface 112B and attached to the fourth main surface 112B with double-sided tape. Next, the laminated glass 110 with the light control panel 120 and flat harness 130 attached is placed in a mold and injection molded to produce the resin frame 140.
  • the resin used for the resin frame 140 may be a thermoplastic resin.
  • the resin used for the resin frame 140 includes, for example, at least one of a thermoplastic elastomer (TPE) material, a polyvinyl chloride (PVC) material, an ethylene propylene diene rubber (EPDM), and a thermoplastic vulcanizate (TPV) material.
  • TPE thermoplastic elastomer
  • PVC polyvinyl chloride
  • EPDM ethylene propylene diene rubber
  • TPV thermoplastic vulcanizate
  • the thermoplastic elastomer (TPE) material includes an olefin-based thermoplastic elastomer (TPO).
  • the resin frame 140 covers the first side surface 111C and the second side surface 112C of the laminated glass 110, the second part 130B of the flat harness 130 provided on the second side surface 112C, the shielding layer 114B on the underside of the laminated glass 110, and the third part 130C of the flat harness 130 attached to the underside of the shielding layer 114B.
  • the second portion 130B and third portion 130C of the flat harness 130 can be sealed by the resin frame 140. Because the resin frame 140 is integrally molded with the laminated glass 110, it adheres closely to the outer surfaces of the second portion 130B and third portion 130C of the flat harness 130, preventing water, dust, and the like from entering from around the flat harness 130.
  • the abutment portion 21 of the weatherstrip 20 is pressed against and tightly adheres to the contact portion 142B on the underside of the extension portion 142 of the resin frame 140, thereby sealing the space between the vehicle window glass 100 and the weatherstrip 20.
  • the contact portion 142B of the resin frame 140 is the flat lower surface of the extension portion 142, and the flat harness 130 is sealed by the resin frame 140 on the lower surface of the shielding layer 114B on the lower surface of the laminated glass 110. This prevents leakage of the seal around the flat harness 130.
  • Figure 4A is a diagram showing an example of the cross-sectional configuration of the comparative vehicle window glass 50.
  • Figure 4B is a diagram showing an example of the cross-sectional configuration of the vehicle window glass 100 of the embodiment.
  • Figure 4B shows the configuration of a YZ cross section when the vehicle window glass 100 is in the closed position closing the opening 11RF.
  • the YZ cross section shown in Figure 4B is a YZ cross section at the position of the contact portion 142B in the X direction of the vehicle window glass 100 in Figure 2.
  • Figure 4A shows the configuration of a YZ cross section when a comparative vehicle window glass 50 is in the closed position closing the opening 11RF.
  • the YZ cross section shown in Figure 4A is a YZ cross section at an X direction position corresponding to the X direction position shown in Figure 4B.
  • Weatherstrip 20 is also shown in Figures 4A and 4B.
  • the weatherstrip 20 is a component made by extrusion molding using EPDM or TPV, triangular gaps form on the -Y and +Y sides of the third portion 130C. When such gaps form, water, dust, etc. can seep into the interior of the vehicle through the gap between the weatherstrip 20 and the third portion 130C, resulting in insufficient waterproofing.
  • FIG. 4B Water Stopping Ability of Vehicle Window Glass 100 of Embodiment (FIG. 4B)>
  • the inner edge 142A of the extending portion 142 of the resin frame 140 is located on the +X direction side (the interior side) of the weatherstrip 20. Therefore, as shown in Fig. 4B , at the position of the contact portion 142B in the X direction, the third portion 130C of the flat harness 130 is sealed by the extending portion 142 of the resin frame 140 that is integrally molded with the laminated glass 110.
  • the third portion 130C protrudes from the inner edge 142A to the outside of the resin frame 140 and extends to the second end 132 while being sealed by the extending portion 142.
  • the contact portion 21 of the weatherstrip 20 is in close contact with the contact portion 142B of the extension portion 142 of the resin frame 140.
  • the contact portion 142B of the extension portion 142 is the lower surface of the extension portion 142 and is a flat surface. There is no gap between the contact portion 21 of the weatherstrip 20 and the contact portion 142B of the extension portion 142, creating a sealed state.
  • the vehicle window glass 100 achieves sufficient watertightness through the sealing of the third portion 130C by the extension portion 142 of the resin frame 140 and the close contact of the weatherstrip 20 with the contact portion 142B (flat surface) of the extension portion 142 of the resin frame 140.
  • the vehicle window glass 100 has sufficient water-stopping properties when in the closed position where the opening 11RF is closed, which prevents moisture and dust from penetrating between the resin frame 140 and the laminated glass 110, improving the electrical reliability of the movable vehicle window glass 100.
  • a movable vehicle window glass 100 with excellent water-stopping properties which includes a resin frame 140 covering the outer edge of a laminated glass 110 having a thin electrical component (e.g., a dimming panel 120) disposed between two glass sheets (a first glass sheet 111 and a second glass sheet 112).
  • a resin frame 140 covering the outer edge of a laminated glass 110 having a thin electrical component (e.g., a dimming panel 120) disposed between two glass sheets (a first glass sheet 111 and a second glass sheet 112).
  • the resin frame 140 is extremely strong, as it surrounds the first side surface 111C and the second side surface 112C of the laminated glass 110 and covers the outer edge portion of the fourth main surface 112B. Because this strong resin frame 140 can seal the third portion 130C of the flat harness 130, the electrical reliability of the vehicle window glass 100 can be improved.
  • the resin frame 140 may be provided with a decorative member.
  • the decorative member is an exterior or interior member primarily intended to decorate the vehicle window.
  • the resin frame 140 may also be provided with a control unit that electrically controls the light control panel 120.
  • the control unit may be adhered to the surface of the resin frame 140, or may be at least partially embedded therein.
  • Fig. 5A is a diagram showing an example of the cross-sectional configuration of a vehicle window glass 100M1 according to a first modified example of the embodiment.
  • Fig. 5A shows the cross-sectional configuration of a portion corresponding to a part of the vehicle window glass 100 shown in Fig. 2. Note that Fig. 5A does not show an enlarged view of the substrate 130-1, wiring 130-2, and coverlay 130-3 of the flat harness 130.
  • Vehicle window glass 100M1 differs from vehicle window glass 100 shown in FIG. 2 in that the shielding layer 114 does not include shielding layer 114B (see FIG. 2) and is composed only of shielding layer 114A provided on the second main surface 111B, and that shielding layer 114A extends from the end of the first glass plate 111 on the -X direction side to the +X direction side beyond second end 132 and inner edge 142A in plan view.
  • the inner edge of shielding layer 114A is located on the +X direction side beyond second end 132 of flat harness 130 and inner edge 142A of extension portion 142 of resin frame 140.
  • the shielding layer 114A which has a rectangular ring shape in plan view, is wider than the shielding layer 114A shown in FIG. 2 and extends further inward than the shielding layer 114A shown in FIG. 2, thereby concealing the first portion 130A and third portion 130C of the flat harness 130 and the extension portion 142 of the resin frame 140.
  • a movable vehicle window glass 100M1 with excellent water-stopping properties can be provided, which includes a resin frame 140 covering the outer edge of a laminated glass 110 having a thin electrical component (e.g., a dimming panel 120) disposed between two glass sheets (a first glass sheet 111 and a second glass sheet 112).
  • a resin frame 140 covering the outer edge of a laminated glass 110 having a thin electrical component (e.g., a dimming panel 120) disposed between two glass sheets (a first glass sheet 111 and a second glass sheet 112).
  • a thin electrical component e.g., a dimming panel 120
  • Fig. 5B is a diagram showing an example of the cross-sectional configuration of a vehicle window glass 100M2 according to a second modified example of the embodiment.
  • Fig. 5B shows the cross-sectional configuration of a portion corresponding to a part of the vehicle window glass 100 shown in Fig. 2. Note that Fig. 5B does not show an enlarged view of the substrate 130-1, wiring 130-2, and coverlay 130-3 of the flat harness 130.
  • Vehicle window glass 100M2 differs from vehicle window glass 100 shown in Figure 2 in that the shielding layer 114 does not include shielding layer 114A (see Figure 2) but is composed only of shielding layer 114B provided on the fourth main surface 112B, and the resin frame 140 has an extension portion 143.
  • the resin frame 140 has an extension 143 provided on the outer edge of the first main surface 111A of the first glass plate 111, so that the upper end of the frame 141 extends higher than the frame 141 of the resin frame 140 shown in Figure 2.
  • the position of the upper end of the frame 141 is the same as the position of the upper surface of the extension 143.
  • the extending portion 143 extends on the first main surface 111A from the inner edge of the upper end of the frame portion 141 toward the inside of the first main surface 111A in a plan view.
  • the extending portion 143 has a rectangular ring shape in a plan view, and on the -X direction side of the first main surface 111A, it extends further toward the +X direction side than the first end 131 of the flat harness 130 in the X direction. This is to conceal the outer edge of the -X direction side of the dimming panel 120 and the first portion 130A of the flat harness 130.
  • the extending portion 143 extends further inward than the outer edge of the dimming panel 120 in a plan view. This is to conceal the outer edges of the dimming panel 120 on the +X direction side, -Y direction side, and +Y direction side.
  • the extending portion 143 which has a rectangular ring shape in plan view, is approximately the same size and located in approximately the same position as the shielding layer 114A shown in Figure 2 in plan view. Similar to the shielding layer 114A shown in Figure 2, the extending portion 143 conceals the outer edge of the dimming panel 120 and the first portion 130A of the flat harness 130.
  • a movable vehicle window glass 100M2 with excellent water-stopping properties can be provided, which includes a resin frame 140 covering the outer edge of a laminated glass 110 having a thin electrical component (e.g., a dimming panel 120) disposed between two glass sheets (a first glass sheet 111 and a second glass sheet 112).
  • a resin frame 140 covering the outer edge of a laminated glass 110 having a thin electrical component (e.g., a dimming panel 120) disposed between two glass sheets (a first glass sheet 111 and a second glass sheet 112).
  • a thin electrical component e.g., a dimming panel 120
  • a movable laminated glass installed in an opening in a vehicle body, the laminated glass comprising: a first glass plate having a first main surface, a second main surface, and a first side surface; a second glass plate having a third main surface, a fourth main surface, and a second side surface; and an interlayer film provided between the second main surface and the third main surface; a thin electrical component provided between the second main surface and the third main surface; a conductive wire having a first end connected to the thin electrical component between the second main surface and the third main surface, and extending along the third main surface, the second side surface, and the fourth main surface, to a position inside an outer edge portion of the fourth main surface in a plan view; a resin frame that surrounds the first side surface and the second side surface and covers the outer edge portion of the fourth main surface, the resin frame having a contact portion to which a seal member provided along an opening edge of the opening of the vehicle body comes into close contact,
  • the sealing member is an annular sealing member provided along an opening edge of the opening.
  • the contact portion is an annular portion corresponding to the annular sealing member in a plan view.
  • Appendix 5 5.
  • Vehicle 10 Vehicle body 11WS, 11SD, 11SDQ, 11RF, 11BL Opening 12 Flange 20
  • Abutment portion 100, 100M1, 100M2 Vehicle window glass 110 Laminated glass 111 First glass plate 111A First main surface 111B Second main surface 111C First side surface 112 Second glass plate 112A Third main surface 112B Fourth main surface 112C Second side surface 113
  • Third intermediate film 114, 114A, 114B Shielding layer 120 Dimming panel (an example of a thin electrical component) 130 Flat harness (an example of conductive wire) 130-1 Board 130-2 Wiring 130-3 Coverlay 130A First portion 130B Second portion 130C Third portion 131 First end 132 Second end 140 Resin frame 141 Frame 142 Extended portion 142A Inner edge 142B Close contact portion 143 Extended portion 150 Wire 151 Conductor

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Joining Of Glass To Other Materials (AREA)

Abstract

L'invention concerne une vitre pour véhicule comprenant : un verre feuilleté mobile disposé dans une ouverture d'une carrosserie de véhicule ; un élément électrique mince disposé entre une deuxième surface principale d'un premier verre du verre feuilleté et une troisième surface principale d'un deuxième verre ; un fil conducteur dont une première extrémité est connectée à l'élément électrique mince entre la deuxième surface principale et la troisième surface principale, et qui s'étend le long de la troisième surface principale, d'une deuxième surface latérale et d'une quatrième surface principale du deuxième verre, vers une position à l'intérieur d'une partie de bord externe de la quatrième surface principale dans une vue en plan ; et un corps de structure en résine qui entoure une première surface latérale du premier verre et la deuxième surface latérale du deuxième verre et recouvre la partie de bord externe de la quatrième surface principale, le corps de structure en résine ayant une partie d'adhérence avec laquelle un élément d'étanchéité disposé le long d'un bord d'ouverture de l'ouverture de la carrosserie de véhicule est en contact étroit. Le fil conducteur s'étend entre la quatrième surface principale et le corps de structure en résine dans une partie chevauchant l'élément d'étanchéité dans une vue en plan.
PCT/JP2025/013654 2024-04-12 2025-04-03 Vitre pour véhicule Pending WO2025216167A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2024-064537 2024-04-12
JP2024064537 2024-04-12

Publications (1)

Publication Number Publication Date
WO2025216167A1 true WO2025216167A1 (fr) 2025-10-16

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Application Number Title Priority Date Filing Date
PCT/JP2025/013654 Pending WO2025216167A1 (fr) 2024-04-12 2025-04-03 Vitre pour véhicule

Country Status (1)

Country Link
WO (1) WO2025216167A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03208840A (ja) * 1989-11-09 1991-09-12 Saint Gobain Vitrage Internatl 加熱可能な合わせガラス板及びその製造方法
US20190001888A1 (en) * 2015-12-31 2019-01-03 Saint-Gobain Glass France Laminated vehicle glazing with amoled screen
JP2019509957A (ja) * 2015-12-30 2019-04-11 サン−ゴバン グラス フランス Ｏｌｅｄスクリーンが組み込まれた自動車用グレージングパネルを製造する方法
JP2019084953A (ja) * 2017-11-07 2019-06-06 Ａｇｃ株式会社 車両用のウインドシールド
JP2020516520A (ja) * 2017-04-07 2020-06-11 サン−ゴバン グラス フランス 無機発光ダイオードを含む乗り物のための発光積層グレージング及びその製造
US20220324204A1 (en) * 2019-06-13 2022-10-13 Saint-Gobain Glass France Laminated glazing incorporating the antennas of the automatic landing assistance system
JP2024020823A (ja) * 2022-08-02 2024-02-15 Ａｇｃ株式会社 車両用窓ガラス

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03208840A (ja) * 1989-11-09 1991-09-12 Saint Gobain Vitrage Internatl 加熱可能な合わせガラス板及びその製造方法
JP2019509957A (ja) * 2015-12-30 2019-04-11 サン−ゴバン グラス フランス Ｏｌｅｄスクリーンが組み込まれた自動車用グレージングパネルを製造する方法
US20190001888A1 (en) * 2015-12-31 2019-01-03 Saint-Gobain Glass France Laminated vehicle glazing with amoled screen
JP2020516520A (ja) * 2017-04-07 2020-06-11 サン−ゴバン グラス フランス 無機発光ダイオードを含む乗り物のための発光積層グレージング及びその製造
JP2019084953A (ja) * 2017-11-07 2019-06-06 Ａｇｃ株式会社 車両用のウインドシールド
US20220324204A1 (en) * 2019-06-13 2022-10-13 Saint-Gobain Glass France Laminated glazing incorporating the antennas of the automatic landing assistance system
JP2024020823A (ja) * 2022-08-02 2024-02-15 Ａｇｃ株式会社 車両用窓ガラス

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