Window glass for vehicle and method for manufacturing window glass for vehicle

Abstract

Provided are: a vehicle window glass having a simple structure and comprising a frame covering the outer edge of a laminated glass provided with a thin electrical component between two glass plates; and a method for manufacturing the vehicle window glass. A window glass for a vehicle includes: laminated glass provided in an opening of a vehicle body, the laminated glass having 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 intermediate film interposed between the first main surface and the second main surface; the intermediate film is arranged 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 wiring extending between a first end portion connected to the thin electrical component between the second main surface and the third main surface and a second end portion provided on the fourth main surface and connected to a vehicle body-side wire harness; a resin frame that covers the wiring and the outer edge of the laminated glass in a plan view, and that has a frame member that is provided on the fourth main surface and surrounds the second end in a plan view; and a sealing member that seals a space enclosed by the fourth main surface and the frame member.

Description

Technical Field

[0001] This disclosure relates to window glass for vehicles and a method for manufacturing window glass for vehicles. Background Technology

[0002] A conventional plate-shaped body with a resin frame has a decorative strip on the resin frame. The decorative strip has a main body and a film disposed on the surface of the main body, having a design portion exposed on the surface of the resin frame and an embedded portion embedded in the resin frame, and the film is configured to continuously cover the design portion and the embedded portion (for example, see Patent Document 1).

[0003] Existing technical documents

[0004] Patent documents

[0005] Patent Document 1: Japanese Patent Application Publication No. 2019-209614 Summary of the Invention

[0006] The technical problem that the invention aims to solve

[0007] However, conventional laminated glass structures with resin frames are made by mounting a resin frame onto a single pane of glass, which is itself a laminated glass structure, rather than by placing electrical components between the two glass panes of laminated glass, for example. When electrical components are placed between the two glass panes of laminated glass, cables for transmitting power and control signals are necessary, which can complicate the structure of the frame and its surroundings.

[0008] Therefore, an embodiment of this disclosure aims to provide a vehicle window glass with a simple structure, including a frame covering the outer edge of the laminated glass, wherein thin electrical components are disposed between the two glass plates.

[0009] Technical solutions adopted to solve technical problems

[0010] The vehicle window glass of this disclosure includes: laminated glass disposed at a vehicle body opening, the laminated glass having a first glass plate, a second glass plate, and an interlayer film, the first glass plate having a first main surface, a second main surface, and a first side surface, the second glass plate having a third main surface, a fourth main surface, and a second side surface, the interlayer film being disposed between the second main surface and the third main surface; a thin electrical component disposed between the second main surface and the third main surface; wiring extending along the third main surface, the second side surface, and the fourth main surface between a first end and a second end, the first end being connected to the thin electrical component between the second main surface and the third main surface, the second end being disposed on the fourth main surface and connected to a wiring harness on the vehicle body side; a resin frame covering the outer edge of the laminated glass in plan view and the wiring, and having a frame member disposed on the fourth main surface and surrounding the second end in plan view; and a sealing member sealing the space enclosed by the fourth main surface and the frame member.

[0011] Invention Effects

[0012] According to this disclosure, it is possible to provide a vehicle window glass with a simple structure, including a frame covering the outer edge of the laminated glass, and a method for manufacturing the vehicle window glass, wherein the laminated glass has thin electrical components disposed between the two glass plates. Attached Figure Description

[0013] Figure 1 This is a diagram illustrating an example of the structure of a vehicle window glass 100 according to an embodiment.

[0014] Figure 2A This is a diagram showing an example of the cross-sectional structure of a vehicle window glass 100, and it shows... Figure 1 A cross-sectional view from the perspective of the arrow AA in the middle.

[0015] Figure 2B This shows the view from the -Z direction side (inside the carriage). Figure 1 The diagram shows an example of the structure when the part circled by the single-dot dashed box is shown.

[0016] Figure 2C It shows from Figure 2B A diagram showing an example of the structure after removing the frame 140 (base 141, frame member 142, and connecting part 143) and silicone resin 150.

[0017] Figure 2D It shows from Figure 2C A diagram of an example of the structure after removing wire harness 20.

[0018] Figure 3 This is a diagram illustrating an example of a method for manufacturing a vehicle window glass 100.

[0019] Figure 4 This is a diagram illustrating an example of a method for manufacturing a vehicle window glass 100M1 according to a first variation of the embodiment.

[0020] Figure 5A This is a diagram illustrating an example of the cross-sectional structure of a vehicle window glass 100M2, which is a second variation of the embodiment.

[0021] Figure 5B This is a diagram showing an example of the structure of a portion of the vehicle window glass 100M2 of the second modified embodiment when viewed from the -Z direction side (inside the carriage).

[0022] Figure 6 This is a diagram showing an example of the structure of a portion of the vehicle window glass 100M3 in the third variation of the embodiment when viewed from the -Z direction side (inside the carriage). Detailed Implementation

[0023] The following describes embodiments of the vehicle window glass and the method for manufacturing the vehicle window glass to which this disclosure applies. In the following text, the same symbols are used to refer to the same components, and repeated descriptions are sometimes omitted.

[0024] In the following text, for ease of understanding of the structure, the length, width, thickness, etc. of each part are sometimes exaggerated. In addition, terms such as parallel, right angle, orthogonal, horizontal, vertical, and up and down can be deviated to a degree that does not affect the effect of the implementation.

[0025] <Implementation Method>

[0026] Figure 1 This is a diagram illustrating an example of the structure of a vehicle window glass 100 according to an embodiment. Figure 1 This shows an example of the shape of the vehicle window 100 as seen from the outside of the vehicle body 10 to the inside of the vehicle body 10. Figure 1 In the present invention, the vehicle window glass 100 is shown as a flat plate, but the vehicle window glass 100 can also be bent in any one direction or in two or more directions.

[0027] The vehicle window glass 100 is installed at the opening 11 of the body 10. Figure 1 The image shows the area surrounding the opening 11 of the vehicle body 10. Furthermore, in... Figure 1 In order to facilitate observation of the vehicle window glass 100, the vehicle window glass 100 is magnified relative to the opening 11.

[0028] The opening 11 is a window frame for mounting the vehicle window glass 100 and is provided with a flange. The vehicle window glass 100 can be mounted to the opening 11 from the outside of the vehicle body, but it can also be mounted from the inside of the vehicle body.

[0029] In addition, Figure 1 in, the planar shape of the laminated glass 110 is roughly an irregular rectangle, but the planar shape of the laminated glass 11 is not limited to an irregular rectangle. For example, it can also be a quadrilateral such as a rectangle or a trapezoid, or any other arbitrary shape. Here, the planar shape refers to the shape when observing a specified area of the laminated glass 110 in the normal direction of the fourth main surface 112B (refer to Figure 2A ) on the inner side of the vehicle compartment of the laminated glass 110.

[0030] The vehicle window glass 100 can be applied to, for example, sunroof glass, rear window glass, side window glass, triangular window glass, additional window glass, front window glass, etc. for vehicles. Among them, the additional window glass refers to the glass installed below the rear window glass of the vehicle to improve the rear visibility of the vehicle driver. The vehicle in this article refers to, for example, motor vehicles such as EV (electric) vehicles, PHEV (plug-in hybrid electric) vehicles, HV (hybrid) vehicles, gasoline vehicles or diesel vehicles. In addition, the vehicle can also be an electric train (Japanese: 電車) or a conventional power train (Japanese: 汽車).

[0031] In addition, in this article, the form in which the vehicle window glass 100 is fixed to the opening 11 is described, but the laminated glass 110 can also be set to be slidable relative to the vehicle body 10. For example, when the laminated glass 110 is used as sunroof glass or side window glass, it can be configured to be freely opened and closed relative to the opening 11 by a driving mechanism such as a motor or a regulator provided on the vehicle body 10 side.

[0032] The vehicle window glass 100 is a Module Assy Window (MAW) (registered trademark) including the laminated glass 110 and a frame 140 provided along the outer edge of the laminated glass 110. The vehicle window glass 100 can be directly installed on the opening 11 of the vehicle body 10 in a state where the frame 140 is installed on the laminated glass 110, so that the vehicle assembly operation can be simplified.

[0033] <Vehicle window glass 100>

[0034] The vehicle window glass 100 includes the laminated glass 110, a dimming plate 120, an FPC (Flexible Printed Circuit) 130, a frame 140, and a silicone resin 150. The dimming plate 120 is an example of a thin electrical component. The FPC 130 is an example of a flexible substrate. The silicone resin 150 is an example of a sealing component.

[0035] Here, as an example, the form of the thin electrical component is described as the dimming plate 120, but the thin electrical component is not limited to the dimming plate 120. The thin electrical component can be any functional film, or heating wire or conductive film for heating, and the dimming plate 120 is an example of a functional film. Thin electrical components other than the dimming plate 120 will be described later.

[0036] The following, except Figure 1 In addition, it also refers to Figures 2A to 2D Please provide an explanation. Figures 2A to 2D In this document, XYZ coordinates are defined and explained. The directions parallel to the X-axis (X direction), the Y-axis (Y direction), and the Z-axis (Z direction) are orthogonal to each other. The +Z direction side is the outer side of the vehicle body 10. The Z-axis extends along the normal direction of the laminated glass 110. Hereinafter, "top view" refers to the view of an object in the XY plane observed along the Z-axis extension direction.

[0037] Figure 2A This is a diagram showing an example of the cross-sectional structure of a vehicle window glass 100, and it shows... Figure 1 A cross-sectional view from the perspective of the arrow AA in the middle. Figure 2B This shows the view from the -Z direction side (inside the carriage). Figure 1 The diagram shows an example of the structure when the part circled by the single-dot dashed box is shown. Figure 2C It shows from Figure 2B A diagram showing an example of the structure after removing the frame 140 (base 141, frame member 142, and connecting part 143) and silicone resin 150. Figure 2D It shows from Figure 2C A diagram of an example of the structure after removing wire harness 20. Figure 2D The image shows the portion of the shielding layer 114 of the laminated glass 110 in the FPC130 from the perspective of viewing the XY plane from the -Z direction side (inside the carriage). As an example, the shielding layer 114 is provided on the fourth main surface 112B of the second glass panel 112 of the laminated glass 110 inside the carriage.

[0038] Figure 2A The flange 12 of the opening 11 provided on the vehicle body 10 is shown. Figures 2A to 2C The middle shows Figure 1 The wiring harness 20 on the side of the vehicle body 10 shown in the diagram is omitted. Additionally, Figure 2A The interior trim panels inside the passenger compartment of the vehicle body 10 are omitted, but the FPC 130, frame 140 and wiring harness 20 are covered by the interior trim panels inside the passenger compartment of the vehicle body 10, so they cannot be seen from the inside of the passenger compartment.

[0039] <Laminated Glass 110>

[0040] The laminated glass 110 has a first glass panel 111, a second glass panel 112, an interlayer 113, and a shielding layer 114. The laminated glass 110 is formed by bonding the first glass panel 111, disposed on the outer side of the vehicle body 10, and the second glass panel 112, disposed on the inner side of the vehicle body 10, through an interlayer 113 disposed between the first glass panel 111 and the second glass panel 112. Furthermore, a dimming plate 120 and an FPC 130 are disposed at a portion between the first glass panel 111 and the second glass panel 112.

[0041] 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 refers to the thickness of the laminated glass 110 between the first main surface 111A on the outer side of the first glass panel 111 and the fourth main surface 112B on the inner side of the second glass panel 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 obtained without excessive mass. Additionally, the total thickness mentioned herein and the thickness described below refer to the length in the Z direction.

[0042] <First glass plate 111 and second glass plate 112>

[0043] Both the first glass panel 111 and the second glass panel 112 are transparent, plate-shaped glass panels. The first glass panel 111 has a first main surface 111A on the outer side of the carriage, a second main surface 111B on the inner side of the carriage, and a first side surface 111C. The first side surface 111C is the end face connecting the first main surface 111A and the second main surface 111B. The second glass panel 112 has a third main surface 112A on the outer side of the carriage, a fourth main surface 112B on the inner side of the carriage, and a second side surface 112C. The second side surface 112C is the end face connecting the third main surface 112A and the fourth main surface 112B. Furthermore, the first glass panel 111 and the second glass panel 112 can be flat or curved in one or more directions.

[0044] The first glass plate 111 and the second glass plate 112 can be either inorganic glass or organic glass. As inorganic glass, examples include soda-lime glass, aluminosilicate glass, borosilicate glass, alkali-free glass, quartz glass, etc., without particular limitation. From the viewpoint of scratch resistance, the first glass plate 111 is preferably inorganic glass. Furthermore, from the viewpoint of manufacturing cost and formability, the first glass plate 111 and the second glass plate 112 are particularly preferably soda-lime glass. When the first glass plate 111 and the second glass plate 112 are soda-lime glass, transparent glass, green glass containing a specified amount or more of iron, UV-blocking green glass, privacy glass, etc., can be used.

[0045] When 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 can be either unstrengthened glass or strengthened glass. Unstrengthened glass is glass formed by shaping molten glass into a plate and then annealing it. Strengthened glass is glass formed by forming a compressive stress layer on the surface of unstrengthened glass, and can be either air-strengthened glass or chemically strengthened glass.

[0046] When the tempered glass is physically tempered (e.g., air-cooled tempered glass), the glass surface can be strengthened by using an operation other than annealing, such as rapidly cooling a uniformly heated glass sheet from a temperature near its softening point during the bending process, to generate a compressive stress layer on the glass surface using the temperature difference between the glass surface and the interior of the glass. When the tempered glass is chemically tempered, the glass surface can be strengthened by generating compressive stress on the glass surface using methods such as ion exchange after bending. Furthermore, glass sheets that absorb ultraviolet or infrared radiation can be used as the first glass sheet 111 and the second glass sheet 112. The first glass sheet 111 and the second glass sheet 112 are preferably transparent, but they can also be colored to the extent that they do not impair transparency.

[0047] On the other hand, examples of materials used for acrylic glass include polycarbonate, polymethyl methacrylate and other acrylic resins, polyvinyl chloride and polystyrene and other transparent resins.

[0048] The laminated glass 110 can be a curved shape that protrudes outward from the vehicle body when installed on the vehicle body 10. The laminated glass 110 can have a single curved shape formed in only one direction, or a multi-curved shape formed in two directions. These two directions are, for example, the vertical direction when the laminated glass 110 is installed on the vehicle body 10, and the horizontal direction orthogonal to the vertical direction. The bending of the laminated glass 110 can be achieved by gravity forming, pressure forming, or roll forming. When the laminated glass 110 is bent to a specified curvature, the radius of curvature of the laminated glass 110 can be more than 1000 mm and less than 100,000 mm.

[0049] Furthermore, when the laminated glass 110 is installed on the vehicle body 10, the thickness of the first glass panel 111 located on the outer side of the vehicle compartment and the thickness of the second glass panel 112 located on the inner side of the vehicle compartment can be the same or different. The thickness of the first glass layer 111 is preferably 1.0 mm or more and 3.6 mm or less. If the thickness of the first glass panel 111 is 1.0 mm or more, its strength, such as its resistance to flying stones, is sufficient; if it is less than 3.6 mm, the mass of the laminated glass 110 will not be excessive, which is preferable from the perspective of vehicle fuel consumption. The thickness of the second glass layer 112 is preferably 0.3 mm or more and 2.7 mm or less. If the thickness of the second glass layer 112 is 0.3 mm or more, the second glass panel 112 has good operability; if it is less than 2.7 mm, the mass of the laminated glass 110 will not be excessive. If the thicknesses of the first glass panel 111 and the second glass panel 112 are both less than 1.8 mm, both lightweight and sound insulation of the laminated glass 110 can be achieved simultaneously, which is therefore preferable. Furthermore, if the thickness of the second glass plate 112 is less than 1.0 mm, the second glass plate 112 can be chemically strengthened glass. When the second glass plate 112 is chemically strengthened glass, the compressive stress value on the glass surface is preferably 300 MPa or more, and the depth of the compressive stress layer is preferably 2 μm or more. Additionally, the thickness here is preferably the thickness of the thinnest portion of the first glass sheet 111 and the second glass sheet 112.

[0050] The first glass panel 111 preferably has sufficient impact resistance for use in vehicles. Furthermore, this impact resistance can be evaluated using, for example, the impact resistance test in UN R43. The impact resistance test is a test to investigate whether safety glass, such as laminated glass for motor vehicles, possesses the necessary adhesion or strength against the impact of small, hard projectiles. Specifically, the test is conducted by holding the laminated glass (safety glass) at a specified temperature, placing it on a support frame with the first main surface 111A of the first glass panel 111 facing upwards, and allowing a steel ball to be dropped naturally from a specified height.

[0051] Furthermore, 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 having water-repellent, ultraviolet or infrared blocking functions, or a coating having low reflectivity, low radiation, anti-fouling properties, or anti-condensation properties. Furthermore, 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 having ultraviolet or infrared blocking, low radiation properties, visible light absorption, coloring, etc. Furthermore, a low-emissivity coating may be formed on the fourth main surface 112B of the second glass plate 112.

[0052] That is, at least one of the first glass plate 111 and the second glass plate 112 may have any one or more of the following: a water-repellent layer, an ultraviolet shielding layer, an infrared reflective layer, a low reflectivity layer, a low emissivity layer, an anti-condensation layer, a visible light absorption layer, and a coloring layer.

[0053] <Intermediate Membrane 113>

[0054] An interlayer film 113 is disposed between the first glass plate 111 and the second glass plate 112. The interlayer film 113 preferably surrounds the side surface of the dimming plate 120. The side surface of the dimming plate 120 refers to the end face connecting the +Z direction side surface and the -Z direction side surface of the dimming plate 120. Additionally, the first end 132A of the wiring 132 of the FPC 130 is connected to the end face of the dimming plate 120 in the +Y direction direction. Therefore, the interlayer film 113 not only surrounds the side surface of the dimming plate 120, but also surrounds the junction between the dimming plate 120 and the first end 132A, as well as the portion of the FPC 130 located between the first glass plate 111 and the second glass plate 112.

[0055] The interlayer 113 has a first interlayer 113A bonded to the first glass plate 111, a second interlayer 113B bonded to the second glass plate 112, and a frame-like third interlayer 113C located between the first interlayer 113A and the second interlayer 113B and surrounding the side of the dimming plate 120. In this example, the third interlayer 113C surrounds the side of the dimming plate 120, but it is also possible to omit the third interlayer 113C. Even without the third interlayer 113C, as long as the side of the dimming plate 120 is located closer to the inside than the first side 111C of the first glass plate 111 or the second side 112C of the second glass plate 112 when viewed from above, the side of the dimming plate 120 can be surrounded by deforming at least one of the first interlayer 113A and the second interlayer 113B during the pressing process in the manufacturing process of the laminated glass 110. When the thickness of the dimming plate 120 is large, the thickness difference between the part where the dimming plate 120 is located and the part that is further outward than the dimming plate 120 will become larger when viewed from above. Therefore, it is better to provide a third interlayer film 113C to fill the thickness difference.

[0056] In addition, as an example, the structure in which the first interlayer 113A, the second interlayer 113B, and the third interlayer 113C are independent entities and are bonded together during the manufacture of the laminated glass 110 will be described, but it is not limited to this structure. For example, when a highly fluid material is poured between the first glass plate 111 and the second glass plate 112 to form the interlayer 113, the interlayer 113 can be integral.

[0057] As the interlayer 113, thermoplastic resins are commonly used, 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, ionomer resins, and other thermoplastic resins conventionally used for this purpose. Furthermore, the resin composition containing modified block copolymer hydrogenates described in Japanese Patent No. 6065221 is also suitable.

[0058] As the material for the interlayer 113, plasticized polyvinyl alcohol acetal resins are suitable from the perspective of achieving an excellent balance of various properties such as transparency, weather resistance, strength, adhesion, penetration resistance, impact energy absorption, moisture resistance, thermal insulation, and sound insulation. These thermoplastic resins can be used alone or in combination of two or more. The term "plasticized" in the context of plasticized polyvinyl alcohol acetal resins means that plasticization can be achieved by adding plasticizers. The same meaning applies to other plasticized resins.

[0059] However, when a dimming plate 120 is encapsulated in the interlayer film 113, depending on the type of encapsulated material, it may deteriorate due to a specific plasticizer. In this case, it is preferable to use a resin that is substantially free of the plasticizer. That is, sometimes it is better for the interlayer film 113 to be free of plasticizer. Examples of plasticizer-free resins include ethylene-vinyl acetate copolymer resins.

[0060] Examples of polyvinyl alcohol acetal resins include polyvinyl alcohol formaldehyde resin obtained by reacting polyvinyl alcohol (hereinafter also referred to as PVA) with formaldehyde, polyvinyl alcohol acetal resins (in the narrow sense) obtained by reacting PVA with acetaldehyde, and polyvinyl alcohol butyral resins (hereinafter also referred to as PVB) obtained by reacting PVA with n-butyraldehyde. From the perspective of a superior balance of various properties such as transparency, weather resistance, strength, adhesion, penetration resistance, impact energy absorption, moisture resistance, thermal insulation, and sound insulation, PVB is particularly suitable. Furthermore, these polyvinyl alcohol acetal resins can be used alone or in combination of two or more.

[0061] As the interlayer 113, a cured transparent resin, also known as optically transparent resin (OCR), or a transparent adhesive sheet, also known as optically transparent adhesive (OCA), can be used. Using a cured transparent resin or a transparent adhesive sheet allows for the fabrication of laminated glass at room temperature, making it more ideal. As the cured transparent resin or transparent adhesive sheet, resins such as acrylic, silicone, polyurethane acrylate, and epoxy resins can be used. Furthermore, these cured transparent resins or transparent adhesive sheets can be used alone or in combination of two or more.

[0062] The material forming the interlayer 113 is not limited to thermoplastic resins. Furthermore, the interlayer 113 may contain functional particles such as infrared absorbers, ultraviolet absorbers, and luminescent agents. Additionally, the interlayer 113 may have a colored portion referred to as a light-shielding strip.

[0063] The thickness of the interlayer film 113 is preferably at least 0.3 mm at its thinnest point. If the thickness of the thinnest point of the interlayer film 113 is at least 0.3 mm, the impact resistance required for the laminated glass 110 is sufficient. The thickness of the interlayer film 113 is preferably at least 3 mm at its thickest point. If the maximum thickness of the interlayer film 113 is at least 3 mm, the mass of the laminated glass 110 will not be excessive. The maximum thickness of the interlayer film 113 is more preferably at least 2.8 mm, and even more preferably at least 2.6 mm.

[0064] Furthermore, the thickness of the interlayer film 113 refers only to the thickness of the interlayer film 113, excluding the thickness of the dimming plate 120. Therefore, the thickness of the interlayer film 113 is the length obtained by subtracting the thickness of the dimming plate 120 from the thickness of the interface between the first interlayer film 113A and the first glass plate 111 (second main surface 111B) to the interface between the second interlayer film 113B and the second glass plate 112 (third main surface 112A).

[0065] Furthermore, the thickest part of the intermediate film 113 is, for example, the part that does not sandwich the dimming plate 120 (the part that does not overlap with the dimming plate 120 when viewed from above). The thinnest part of the intermediate film 113 is, for example, the part that sandwiches the dimming plate 120 (the part that overlaps with the dimming plate 120 when viewed from above).

[0066] Furthermore, the first intermediate membrane 113A, the second intermediate membrane 113B, and the third intermediate membrane 113C contained in the intermediate membrane 113 are ideally all formed of the same material, but some or all of the first intermediate membrane 113A, the second intermediate membrane 113B, and the third intermediate membrane 113C may also be formed of different materials. For example, the first intermediate membrane 113A and the second intermediate membrane 113B may be formed of the same material while the third intermediate membrane 113C may be formed of a different material.

[0067] When manufacturing the interlayer film 113, for example, the aforementioned resin material for forming the interlayer film is appropriately selected, and extrusion molding is performed using an extruder in a heated molten state. The extrusion conditions, such as the extrusion speed of the extruder, are set to conditions that ensure uniformity. Then, the resin film manufactured by extrusion molding is stretched, for example, as needed, to give it curvature to match the design of the laminated glass 110, thereby completing the interlayer film 113.

[0068] <Shielding Layer 114>

[0069] The shielding layer 114 is an opaque layer. The shielding layer 114 may be, for example, an opaque colored (e.g., black) ceramic layer. The shielding layer 114 may be a colored interlayer film, a colored film, or a combination of a colored interlayer film and a colored ceramic layer that have light-shielding properties. The colored film may be integrated with an infrared reflective film, etc. Here, "opaque" means that the visible light transmittance is less than 5%, preferably less than 3%, more preferably less than 1%, and also includes substantially 0%. The shielding layer 114 inhibits the degradation of resins such as polyurethane that hold the laminated glass 110 to the vehicle body 10 due to ultraviolet radiation.

[0070] The masking layer 114 can be formed, for example, by applying a ceramic color paste containing molten glass frit containing black pigment to a glass plate using screen printing and firing, but is not limited to this method. The masking layer 114 can also be formed, for example, by applying an organic ink containing black or dark pigment to a glass plate using screen printing and drying.

[0071] As an example, the shielding layer 114 can be configured as a strip along the outer edge of the laminated glass 110. Specifically, such as Figure 1 As shown, the shielding layer 114 appears as a strip on the inside of the frame 140 covering the outer edge of the laminated glass 110 when viewed from above. Figure 1 In the diagram, the frame 140 is represented by dark dots, and the portion of the shielding layer 114 that is further inward than the inner edge of the frame 140 is represented by light dots. The portion of the shielding layer 114 represented by light dots is the part visible from the outside of the vehicle compartment when the vehicle window 100 is installed on the opening 11. As an example, the laminated glass 110 is an irregular rectangle when viewed from above, therefore the frame 140 is an irregular rectangular ring when viewed from above, and the shielding layer 114 is also an irregular rectangular ring.

[0072] like Figure 2A As shown, as an example, the shielding layer 114 is formed on the fourth main surface 112B of the second glass plate 112 and spans the inner edges 141A and 141B of the frame 140 when viewed from above. As another example, the outer edge of the shielding layer 114 is located at the outer edges of the first glass plate 111 and the second glass plate 112. That is, the shielding layer 114 has a portion that overlaps with the frame 140 when viewed from above, and a portion that is located further inward than the inner edges 141A and 141B of the frame 140 when viewed from above and does not overlap with the frame 140. Furthermore, the shielding layer 114 also partially overlaps with the dimming plate 120 when viewed from above. Additionally, if the outer edge of the shielding layer 114 is located further outward than the inner edges 141A and 141B of the frame 140 when viewed from above, it can also be located at a position closer to the center when viewed from above than the outer edges of the first glass plate 111 and the second glass plate 112.

[0073] The width of the masking layer 114 only needs to be sufficient to cover the frame component 142 of the frame 140, the portion of the FPC 130 located on the fourth main surface 112B, and the wire harness 20, etc. Here, the portion of the FPC 130 located on the fourth main surface 112B refers to the portion of the FPC 130 that is adhered to the fourth main surface 112B through the masking layer 114 and double-sided tape 134. The width of the masking layer 114 refers to... Figure 2A The width in the Y direction is also Figure 1 The width of the irregular rectangular ring-shaped strip portion. In other words, the width of the shielding layer 114 refers to its width in the direction perpendicular to the inner edge of the irregular rectangular ring-shaped shielding layer 114 when viewed from above.

[0074] Furthermore, the shielding layer 114 is not limited to a structure formed on the fourth main surface 112B, but can also be formed on the second main surface 111B of the first glass plate 111 or the third main surface 112A of the second glass plate 112. The shielding layer 114 can also be formed on a combination of the second main surface 111B and the fourth main surface 112B, the second main surface 111B and the third main surface 112A, or the third main surface 112A and the fourth main surface 112B. In addition, the shielding layer 114 can also be disposed on the surface of the first intermediate film 113A or the second intermediate film 113B, or embedded within the first intermediate film 113A or the second intermediate film 113B.

[0075] <Dimming Panel 120>

[0076] The dimming panel 120 is an example of a thin electrical component and a functional film. Thin means having a sufficiently thin thickness to be disposed between the first glass plate 111 and the second glass plate 112 of the laminated glass 110.

[0077] like Figure 1 As shown, as an example, the dimming plate 120 is an irregular rectangle when viewed from above, and is configured to converge inside the outer edge of the irregular rectangular laminated glass 110 when viewed from above. The irregular rectangular shape of the dimming plate 120 when viewed from above is described here, but the shape of the dimming plate 120 when viewed from above is not limited to an irregular rectangle. The dimming plate 120 can have a rectangle or any shape that matches the shape of the laminated glass 110 when viewed from above. Furthermore, the dimming plate 120 can also have any shape that converges within the outer edge of the laminated glass 110, without needing to match the shape of the laminated glass 110 when viewed from above.

[0078] As an example, the dimming panel 120 is a component whose transmittance varies depending on the power supplied through the FPC 130. Here, as an example, the dimming panel 120 is described in a configuration where power is supplied through the two wires of the FPC 130, causing it to switch between a high transmittance state and a low transmittance state. When power is supplied through the wires 132 of the FPC 130, the dimming panel 120 is turned on and enters the high transmittance state; when the power supply is cut off, the dimming panel 120 is turned off and enters the low transmittance state. The switching between power supply and non-power supply through the two wires 132 serves as a signal control function to control the switching of the dimming panel 120 on and off.

[0079] The dimming panel 120 can be a panel whose transmittance varies with the duty cycle of a PWM (Pulse Width Modulation) signal. For example, it can be a dimming panel obtained by attaching a dimming device whose transmittance varies with the duty cycle of the PWM signal onto a resin or glass panel. Other dimming devices that can be used include suspended particle devices (SPDs), polymer dispersed liquid crystals (PDLCs), polymer network liquid crystals (PNLCs), host-guest liquid crystals, photochromic materials, and electrochromic materials.

[0080] When the transmittance of the dimming plate 120 changes in two stages, it is transparent when the transmittance is high and becomes opaque (such as gray) when the transmittance is low, making it almost opaque. Furthermore, when the dimming plate 120 is driven by a PWM pulse signal, the transmittance can be controlled in multiple stages between the transparent and opaque states. For example, the transmittance of the dimming plate 120 is at its minimum when the duty cycle of the PWM pulse signal is 0%.

[0081] The dimming plate 120 is positioned within the area of ​​the laminated glass 110 that covers the opening 11 when viewed from above. This is because the dimming plate 120 is positioned so that it is visible from both the outside and inside of the vehicle body 10. Furthermore, if the laminated glass 110 is slidable relative to the vehicle body 10, the dimming plate 120 only needs to be positioned within the area of ​​the laminated glass 110 that covers the opening when the laminated glass 110 is completely closed relative to the vehicle body 10. This is because, even when the laminated glass 110 is completely closed relative to the vehicle body 10, the dimming plate 120 is positioned so that it is visible from both the outside and inside of the vehicle body 10.

[0082] Furthermore, as mentioned above, the thin electrical component is not limited to the dimming plate 120, but can also be a functional film other than the dimming plate 120, or a heating wire or conductive film for heating, etc.

[0083] Functional films are components that impart additional functions to the laminated glass 110. Examples of functional films other than the dimming plate 120 include light-emitting display films and solar cell films. A light-emitting display film is a film-like display device in which pixels composed of light-emitting elements are arranged, and an image can be displayed by energizing the light-emitting elements of each pixel. Light-emitting elements include organic EL (electroluminescent) elements or inorganic EL elements. A solar cell film is a film on which photoelectric conversion elements that convert light energy into electrical energy are formed.

[0084] Furthermore, the heating wires used for heating can be exemplified as those used in a defrost unit to remove fog (water droplets) adhering to the surface of the vehicle window glass 100; and as those used in a de-icing unit to effectively melt ice or snow adhering to the outer surface of the vehicle window glass 100. These heating wires are, for example, made of tungsten wire. The spacing between the heating wires in the X direction is, for example, approximately 2 mm. When the heating wire is used as a de-icing unit, the current flowing through it can be set higher (e.g., approximately twice as high) than when used as a defrost unit. Therefore, the heating wire used for a de-icing unit is thicker than that used for a defrost unit. The heating wire used for a defrost unit is, for example, a plurality of heating wires extending horizontally and arranged at equal intervals. Furthermore, the heating wire used for a de-icing unit is, for example, a plurality of heating wires extending vertically (up and down) perpendicular to the horizontal direction and arranged at equal intervals.

[0085] Furthermore, as a conductive film for heating, examples include transparent conductive films used in demisters or de-icers. Such transparent conductive films can replace the aforementioned heating wires. Examples of transparent conductive films include metal films such as Ag films, metal oxide films such as ITO (indium tin oxide) films, or resin films containing conductive particles. Transparent conductive films can also be obtained by laminating multiple films.

[0086] Furthermore, when heating wires or conductive films for heating are disposed as thin electrical components between the first glass plate 111 and the second glass plate 112, an anti-fog film may be provided on the fourth main surface 112B of the second glass plate 112. As an example, the anti-fog film is a film containing water-absorbing polymers or hydrophilic polymers and capable of achieving high water absorption.

[0087] By using thin electronic components as functional films, heating wires, or conductive films for heating, it is possible to provide vehicle window glass 100 that includes various types of thin electronic components. Furthermore, in vehicle window glass 100 that includes various types of thin electronic components, the structure can be simplified through the structure of the frame 140 described below.

[0088] <fpc130>

[0089] FPC130 is provided for transmitting circuits and control signals to thin electrical components. Here, the form of the vehicle window glass 100 including FPC130 is described, but cables with insulation coating on the wiring (conductivity) can also be used instead of FPC130.

[0090] As an example, such as Figure 1 As shown, FPC130 is located on one side of the outer edge of the laminated glass 110 and the dimming plate 120, which are irregularly rectangular when viewed from above.

[0091] like Figure 2A As shown, FPC130 has a substrate 131, wiring 132, and a cover layer 133. (As...) Figure 2D As shown, FPC130 has a T-shape when viewed from above. Specifically, the substrate 131 of FPC130 has a T-shaped shape when viewed from above. Wiring 132 has two wires (see reference) formed on one surface of the substrate 131. Figure 2D The substrate 131 and the cover layer 133 are fixed together by lamination with the wiring 132 sandwiched between them or by adhesive bonding.

[0092] The substrate 131 and the cover layer 133 are, for example, made of a flexible resin film such as polyimide, and the wire 132 is, for example, a wiring formed by patterning copper foil.

[0093] Each wiring 132 has a first end 132A (refer to) Figure 2A ) and the second end 132B (refer to) Figures 2A to 2D The first end 132A and the second end 132B of the wiring 132 are covered by the substrate 131 and the cover layer 133. The first end 132A and the second end 132B are the portions of the wiring 132 exposed on the substrate 131 after the cover layer 133 is removed. The second end 132B serves as a terminal to which the connector 21 of the wire harness 20 is connected.

[0094] The portion of the first end 132A of the FPC130 is sandwiched between the first glass plate 111 and the second glass plate 112 at the +Y direction end of the laminated glass 110, and between the second intermediate film 113B and the third intermediate film 113C. The first end 132A is connected to a terminal (not shown) at the +Y direction end of the dimming plate 120. As an example, the FPC130 and the dimming plate 120 have an overlap between the first glass plate 111 and the second glass plate 112, but there may be no overlap.

[0095] FPC130 extends from the portion on the first end 132A side to the second end 132B in the -Y direction of the second glass plate 112, bends twice along the second side 112C, and extends along the third main surface 112A, the second side 112C and the fourth main surface 112B.

[0096] As an example, the portion of FPC130 extending along the fourth main surface 112B is covered by double-sided tape 134 (see reference). Figure 2A The portion of the second end 132B of the FPC 130 is located at the -Y direction end of the portion of the FPC 130 extending along the fourth main surface 112B. Therefore, as an example, the portion of the second end 132B of the FPC 130 is attached to the fourth main surface 112B of the second glass plate 112 by means of double-sided tape 134. That is, the second end 132B is disposed on the fourth main surface 112B through the substrate 131 and the double-sided tape 134.

[0097] Thus, the FPC130 extends along the third main surface 112A, the second side surface 112C, and the fourth main surface 112B between the first end 132A and the second end 132B.

[0098] The connector 21, located at one end of the wire harness 20, is connected to the second end 132B by solder. As an example, lead-free solder such as silver-tin solder or silver-tin-copper solder can be used. Furthermore, the connection between the connector 21 and the second end 132B is not limited to soldering; it can also be achieved through welding, bonding with conductive adhesive, or fusion welding. Additionally, the bare wires of the wire harness 20 can be directly connected to the second end 132B without going through the connector 21.

[0099] As an example, such as Figure 2D As shown, the FPC130 has two wirings 132. As an example, the shapes of the two wirings 132 are symmetrical with respect to a straight line extending in the Y direction from the X-direction center of the T-shaped FPC130. The two wirings 132 are connected to the positive and negative terminals of the dimming board 120.

[0100] Furthermore, the number of wires 132 can be appropriately set according to the number of terminals of the thin electrical component, and the FPC130 can have wires 132 for transmitting power as well as wires 132 for transmitting control signals, etc. In addition, the shape of the FPC130 in top view can be arbitrary.

[0101] Double-sided tape 134 (reference) Figure 2A As an example, it could be any double-sided tape capable of bonding FPC130 to the fourth main surface 112B of the second glass plate 112. Alternatively, an adhesive layer or the like could be used instead of double-sided tape 134.

[0102] The FPC 130, having a structure in which wiring 132 is disposed on a substrate covered by a cover layer 133, is very thin and highly flexible. Therefore, when bending along the second side surface 112C and the fourth main surface 112B from the end of the dimming plate 120 disposed between the first glass plate 111 and the second glass plate 112 and connecting it to the connector 21 of the wire harness 20, circuitry is very easy. Furthermore, the ease of circuitry improves the electrical reliability of the wiring 132. This is because breakage or damage to the wiring 132 is less likely to occur. By using the FPC 130, circuitry of the wiring 132 becomes easier, while simultaneously improving electrical reliability.

[0103] <Frame 140>

[0104] The frame 140 is an irregularly rectangular frame-shaped component formed along the outer edge of the irregularly rectangular laminated glass 110. The frame 140 has a base 141, a frame component 142, a connecting portion 143, and a lip 144.

[0105] like Figure 1 As shown, the frame 140 is continuously arranged around the outer edge of the laminated glass 110, but it may also be formed only at a portion of the outer edge of the laminated glass 110 and interrupted in the middle. The frame shape here includes structures with intermediate interrupted sections.

[0106] The frame 140 is, for example, made of resin. The resin used for the frame 140 is not particularly limited as long as it can be integrally formed with the laminated glass 110, but a resin suitable for injection molding is preferred. A resin suitable for injection molding refers to a resin that can be melted by heating and then cured by cooling. Here, as an example, the shape of the frame 140 manufactured by injection molding using a mold will be described. Furthermore, the specific manufacturing method of the frame 140 will be described later.

[0107] The resin used for the frame 140 can be a thermoplastic resin. The resin used for the frame 140 may include, for example, at least one of thermoplastic elastomer (TPE), polyvinyl chloride (PVC), ethylene propylene diene monomer (EPDM), and thermoplastic vulcanizate (TPV). Thermoplastic elastomer (TPE) materials include olefin-based thermoplastic elastomers (TPO).

[0108] When manufacturing the frame 140 using a mold, a glass primer 145 for promoting the adhesion of the frame 140 is applied to the surfaces of the laminated glass 110 and the FPC 130, and then the frame 140 is formed on the primer 145. Here, as an example, the surface of the laminated glass 110 to which the primer 145 is applied consists of the first main surface 111A, the first side surface 111C, the second side surface 112C, and the shielding layer 114. When the frame 140 is provided in the portion where the shielding layer 114 is not provided, the frame 140 is formed after applying the primer 145 to the fourth main surface 112B. All components constituting the frame 140 (base 141, frame member 142, connecting portion 143, and lip 144) are integrally formed. That is, the frame member 142 is integrally formed with the frame 140.

[0109] When manufacturing vehicle window glass 100, a resin frame 140 is formed using a mold, and then unwanted portions are removed to produce the frame 140. For example, the removal of unwanted portions can be performed using cutting tools or similar methods. Hereinafter, the structure formed by injection molding using a mold will be referred to as a resin frame. The resin frame is a resin molded article that serves as the base of the frame 140, and has a structure consisting of the frame 140 and unwanted portions joined together.

[0110] In the resin frame 140, the unwanted portions are not coated with a primer, thus forming a resin frame. The unwanted portions are the portions on the inner edge 141B side of the inner side of the carriage (viewed from above) where the frame member 142 and the connecting portion 143 are not provided, and the portion containing the receiving portion 142A is provided inside the frame member 142. Figure 2A (part of the text). Figure 2A In the cross-section shown, the primer 145 is not present in the receiving portion 142A. The structure of the base 141, the frame member 142, and the connecting portion 143 will be described below.

[0111] <Base 141>

[0112] The base 141 is a frame-shaped portion of the irregular rectangular frame 140, formed along the outer edge of the irregular rectangular laminated glass 110. The base 141 covers the outer edges and peripheries of the first glass plate 111 and the second glass plate 112, as well as the FPC 130, and seals them in an enclosed state. The outer edges of the first glass plate 111 and the second glass plate 112 are the first side surface 111C and the second side surface 112C, respectively. The periphery of the outer edge of the first glass plate 111 is the portion of the first main surface 111A near the first side surface 111C, and the periphery of the outer edge of the second glass plate 112 is the portion of the fourth main surface 112B near the second side surface 112C.

[0113] Therefore, the base 141 is configured to contact the portions of the first main surface 111A and the fourth main surface 112B of the laminated glass 110 that are close to the first side surface 111C and the second side surface 112C, as well as the first side surface 111C and the second side surface 112C. That is, the base 141 is disposed on the entire first main surface 111A, the first side surface 111C, the second side surface 112C, and the fourth main surface 112B.

[0114] In addition, the base 141 may have a section provided only on the first main surface 111A, a section provided only on the fourth main surface 112B, or a section provided only on the first side surface 111C and the second side surface 112C in the circumferential direction along the outer edge of the laminated glass 110.

[0115] The base 141 has a first portion 141-1 disposed on the first main surface 111A, a second portion 141-2 disposed on the first side surface 111C and the second side surface 112C, and a third portion 141-3 disposed on the fourth main surface 112B.

[0116] Figure 2A and Figure 2B The inner edge 141A of the outer side of the carriage and the inner edge 141B of the inner side of the carriage are shown. Figure 2A The image shows a cross-section of the portion containing the inner side frame member 142 and the connecting portion 143 of the carriage; therefore, the position of the inner edge 141B of the carriage interior is indicated by a dashed line. Furthermore, Figure 2B The image shows an observation from the -Z direction side (inside the carriage). Figure 1 The part circled by the single-dot dashed box is an example of the structure, so the position of the inner edge 141A of the outer side of the carriage is indicated by a dashed line. Figure 2B In the middle, regarding the part on the base 141 to which the connecting part 143 is connected, the position of the inner edge 141B on the inner side of the carriage of the base 141 is indicated by a dashed line.

[0117] As an example, the inner edge 141A of the outer side of the carriage, when viewed from above, is located closer to the center of the laminated glass 110 than the inner edge 141B of the inner side of the carriage. A clamp or similar fixture for mounting the vehicle window glass 100 to the vehicle body 10 is provided on the fourth main surface 112B of the laminated glass 110 on the carriage side. When the resin frame 140 is manufactured using injection molding with a mold, the positions of the inner edge 141A of the outer side of the carriage and the inner edge 141B of the inner side of the carriage of the base 141 are equal. However, as an example, the portion of the base 141 near the inner side of the carriage is removed. Therefore, the inner edge 141B of the inner side of the carriage, when viewed from above, is offset further towards the outer edge of the laminated glass 110 than the inner edge 141A of the outer side of the carriage of the base 141. The frame member 142 and the connecting portion 143 are as follows... Figure 2B As shown, when viewed from above, it protrudes further toward the center of the laminated glass 110 than the inner edge 141B of the inner side of the carriage.

[0118] When mounting the vehicle window glass 100 onto the opening 11 and flange 12 of the body 10 on such a base 141, a urethane sealant 30 is applied to the inner (-Z direction) surface of the base 141 (the surface of the third part 141-3). The urethane sealant 30 is an example of an adhesive. The urethane sealant 30 seals the space between the base 141 and the flange 12. Because the urethane sealant 30 is applied to the third part 141-3, the laminated glass 110 can be securely fixed to the body 10 by the frame 140.

[0119] Furthermore, the reason why the inner edges 141A on the outer side and 141B on the inner side of the base 141 are equal when manufacturing the resin frame that serves as the base 140 is the same is as follows. When manufacturing the resin frame by injection molding, it is preferable to make the injection pressure on the laminated glass 110 equal on the first main surface 111A side and the fourth main surface 112B side in order to suppress breakage of the laminated glass 110. By matching the position of the inner edge 141A on the outer side of the base 141 with the position of the inner edge 141B on the inner side of the base 141, the area of ​​the resin frame that clamps the laminated glass 110 is equal on the first main surface 111A side and the fourth main surface 112B side, thus achieving equalization of injection pressure. For this reason, as an example, the positions of the inner edges 141A on the outer side and 141B on the inner side of the base 141 are equal when manufacturing the resin frame.

[0120] <Frame component 142 and connecting part 143>

[0121] The frame member 142, viewed from above, is located on the inner edge of the frame-shaped base 141. Specifically, the frame member 142 is connected to the inner edge 141B of the inner side of the carriage of the base 141 via a connecting portion 143. The inner edge 141B of the inner side of the carriage is the inner edge of the third part 141-3. Therefore, the frame member 142 is connected to the third part 141-3 via the connecting portion 143. In this way, the frame member 142 and the base 141 are integrated.

[0122] Furthermore, the frame member 142 is disposed across the -Z direction side surface of the shielding layer 114 of the laminated glass 110 and the -Z direction side surface of the portion of the FPC 130 disposed on the fourth main surface 112B. That is, a portion of the frame member 142 is disposed on the fourth main surface 112B with the shielding layer 114 in between, and the remaining portion of the frame member 142 is disposed on the fourth main surface 112B with the FPC 130 in between and the shielding layer 114. The frame member 142 being disposed on the fourth main surface 112B means, as described above, that the shielding layer 114 or the FPC 130 is sandwiched between it and the fourth main surface 112B.

[0123] As an example, the lengths of the frame member 142 and the connecting portion 143 in the X direction are equal, but the frame member 142 may be longer than the connecting portion 143, or the frame member 142 may be shorter than the connecting portion 143. The frame member 142 and the connecting portion 143 are disposed in a portion of the circumferential direction of the inner edge 141B of the inner side of the carriage of the base 141.

[0124] As an example, the connecting part 143 is Figure 2B The section B in the Y direction is indicated by a double arrow. The end of section B in the +Y direction is the boundary between the inner edge 141B of the inner side of the base 141 and the connecting part 143, and the end of section B in the -Y direction is the boundary between the frame member 142 and the connecting part 143. Figure 2A As shown, as an example, the thickness of the connecting portion 143 in the Z direction is equal to the thickness of the base portion 141 and the frame member 142 in the Z direction.

[0125] The frame member 142 is located on the -Y direction side of the connecting portion 143 and is a frame-shaped portion that surrounds the second end 132B of the wiring 132 of the FPC 130 when viewed from above. The second end 132B is the terminal to which the connector 21 of the wire harness 20 is connected. As an example, the frame member 142 is a rectangular frame-shaped portion when viewed from above. As an example, the frame member 142 is located at a position that overlaps with the first portion 141-1 of the base 141 when viewed from above. In this way, when the vehicle window glass 100 is viewed from the outside of the vehicle compartment, the frame member 142 is covered by the first portion 141-1, which makes the appearance of the vehicle window glass 100 look good.

[0126] The frame shape of the border member 142, like the frame shape of the frame body 140, refers to a structure including a mid-interruption section. Furthermore, the border member 142 can also be, for example, a structure located on three sides of a rectangular region surrounding the second end 132B of the FPC 130 in plan view. In this case, as an example, the wire harness 20 can pass through the remaining side.

[0127] In addition, such as Figure 2B As shown, as an example, the frame shape for the border member 142 refers to a structure in which a connecting portion 143 is connected to one side of the four sides of the rectangular frame. In this case, the connecting portion 143 may also be connected to a portion of the side of the border member 142 in the +X direction and / or the -X direction.

[0128] The central portion of the frame member 142 is removed in top view, extending through to the surface of the frame member 142 in the +Z direction direction, thereby forming a receiving portion 142A. The receiving portion 142A is a through hole that exposes the second end 132B of the FPC 130 at the bottom in the +Z direction direction. The receiving portion 142A extends through the frame member 142 in the Z direction.

[0129] The +Z direction end of the receiving portion 142A faces the FPC 130 and the shielding layer 114. That is, the +Z direction end of the receiving portion 142A faces the fourth main surface 112B through the shielding layer 114, and the remaining portion of the +Z direction end of the receiving portion 142A faces the fourth main surface 112B through the FPC 130 and the shielding layer 114. Thus, the internal space of the receiving portion 142A is the space enclosed by the inner wall of the receiving portion 142A, which is formed by the through hole, and the fourth main surface 112B. Inside this space, the second end 132B of the FPC 130 is connected to the connector 21 of the wire harness 20 and sealed with silicone resin 150.

[0130] Figure 2A The diagram shows a structure in which the wire harness 20 passes through the receiving portion 142A, and the connector 21 at its front end is connected to the second end 132B. As an example, this structure is manufactured through the following process: after forming a frame 140 having a frame member 142 and a receiving portion 142A, the wire harness 20 passes through the receiving portion 142A, the connector 21 is connected to the second end 132B using solder or the like, and then sealed with silicone resin 150.

[0131] However, the manufacturing process of the vehicle window glass 100 is not limited to such a process. For example, after passing the wire harness 20 and connecting the connector 21 to the second end 132B with solder or the like, a mold can be assembled to form a resin frame that serves as the base of the frame 140. Unnecessary portions are removed to form the frame member 142 and the receiving portion 142A, and then silicone resin 150 is filled into the receiving portion 142A. In this case, for example, the wire harness 20 can also be wound back from between the frame 140 and the shielding layer 114 to the outside of the frame 140.

[0132] Regardless of the manufacturing method used to form the frame 140, the frame member 142 is integrally formed with the base 141, thus simplifying the structure of the vehicle window glass 100. Furthermore, since the frame member 142 is formed and integrated with the base 141 as part of the frame 140, positioning of the frame member 142 is not required separately for its formation; instead, it is automatically positioned simultaneously with the positioning of the mold used to form the entire frame 140. Therefore, a highly precisely positioned frame member 142 can be manufactured through simple operations.

[0133] Furthermore, multiple clamps for mounting the vehicle window glass 100 to the vehicle body 10 are positioned on the fourth main surface 112B inside the vehicle compartment of the laminated glass 110, closer to the center of the laminated glass 110 than the base 141, but unused space remains between the clamps. Since the frame member 142 is located on the inner edge of the frame-shaped base 141 when viewed from above, it is located in the unused space as described above, thereby effectively utilizing the space between the vehicle body 10 and the laminated glass 110 to arrange the frame member 142.

[0134] <Lips 144>

[0135] As an example, such as Figure 2A As shown, the lip 144 protrudes obliquely outward from the outer edge 141C of the base 141 towards the outside of the vehicle body, and is provided along the entire circumference of the outer edge 141C of the base 141. The lip 144 is elastic, and if the vehicle window glass 100 is installed on the opening 11 and flange 12 of the body 10, it will flex in a state of abutting against the opening 11 of the body 10. Through the flexing of the lip 144, the gap between the base 141 and the opening 11 can be filled, realizing a structure that makes it difficult for moisture and dust to enter between the base 141 and the flange 12.

[0136] <Organosilicon resin 150>

[0137] The silicone resin 150 is a silicone sealant filled inside the housing portion 142A, and is a liquid adhesive. For example, such an adhesive is composed of liquid silicone rubber. Before filling the housing portion 142A with the silicone resin 150, if the connector 21 of the wire harness 20 is pre-connected to the second end 132B of the FPC 130, the connection between the second end 132B and the connector 21 can be sealed with the silicone resin 150.

[0138] The silicone resin 150 seals the space enclosed by the frame member 142 and the fourth main surface 112B. The space enclosed by the frame member 142 and the fourth main surface 112B is the internal space of the receiving part 142A.

[0139] <Manufacturing Method of Vehicle Window Glass 100>

[0140] Figure 3 This is a diagram illustrating an example of a method for manufacturing a vehicle window glass 100.

[0141] The frame 140 and the vehicle window glass 100 including the frame 140 are formed as follows. First, the dimming plate 120 is sandwiched between the first glass plate 111 and the second glass plate 112 through the interlayer film 113, and the FPC 130 connected to the dimming plate 120 is bent along the second side surface 112C and the fourth main surface 112B, and then attached to the fourth main surface 112B with double-sided tape 134.

[0142] Next, a primer is applied to the surfaces of the laminated glass 110 and FPC 130. At this time, the primer is applied to the parts except for those that will be removed later. The unwanted parts are the parts on the inner edge 141B side of the carriage where the frame member 142 and the connecting part 143 are not provided, and the part of the receiving part 142A.

[0143] Next, the laminated glass 110, on which the dimming plate 120 and FPC 130 are mounted, is placed into a mold and injection molded to form a resin frame that serves as the base of the frame 140, and unwanted parts are removed. In this stage, a frame component 142 with a receiving portion 142A is formed.

[0144] The wire harness 20 is passed through the housing portion 142A, and the connector 21 is connected to the second end 132B using solder or the like. Finally, silicone resin 150 is filled into the housing portion 142A and cured. Thus, a vehicle window glass 100 including a frame 140 can be manufactured.

[0145] Thus, the frame 140 covers the outer edge of the laminated glass 110 and the FPC 130 when viewed from above. Furthermore, the frame 140 has a frame member 142 disposed on the fourth main surface 112B and surrounding the second end 132B (terminal) of the FPC 130 when viewed from above. Therefore, the frame 140 can be manufactured together with the frame member 142.

[0146] Here, as a different approach from this disclosure, for example, the following sealing structure can be considered: preparing a box-shaped component (hereinafter referred to as "box-shaped component") to seal the connection portion between the second end 132B of the FPC130 and the connector 21 of the wire harness 20, thereby sealing the connection portion by connecting the second end 132B and the connector 21 inside the box-shaped component and filling it with silicone rubber. The box-shaped component only needs to have a structure that can be disposed on the surface of the fourth main surface 112B or the shielding layer 114, and have sufficient dimensions to accommodate the second end 132B and the connector 21.

[0147] Compared to this sealing structure, the vehicle window glass 100 of the present disclosure uses a frame member 142 provided on the frame 140 at the outer edge of the laminated glass 110 to seal the connection portion between the second end 132B and the connector 141, thus reducing the number of parts and simplifying the structure.

[0148] Therefore, according to the embodiments of the present disclosure, it is possible to provide a vehicle window glass 100 with a simple structure, including a frame 140 covering the outer edge of the laminated glass 110, wherein the laminated glass 100 has a thin electrical component (e.g., a dimming plate 120) disposed between two glass plates (a first glass plate 111 and a second glass plate 112).

[0149] Furthermore, when filling the interior of a box-shaped component with silicone rubber as described above, it is necessary to perform operations to fix the box-shaped component to the laminated glass and to perform the filling operation. In contrast, in the vehicle window glass 100 according to the embodiment of this disclosure, the frame component 142 for sealing the connection portion between the second end 132B and the connector 21 can be formed simultaneously during the operation of forming the frame 140 by injection molding. Therefore, the number of operation steps can be reduced, and the manufacturing process can be simplified and costs reduced.

[0150] Furthermore, the frame member 142, which protects the connection portion between the second end 132B and the connector 21, is formed and integrated with the base 141, so there is no need to perform positioning solely for forming the frame member 142. When positioning the mold used to form the entire frame 140, the positioning of the frame member 142 is also performed automatically at the same time, so a high-precision positioned frame member 142 can be manufactured through simple operation.

[0151] Furthermore, since the base 141 covers the outer edge and periphery of the laminated glass 110, it is very robust. Because the frame member 142, formed and integrated with this robust base 141, protects the connection between the second end 132B and the connector 21, it provides longer-lasting protection compared to a case where a box-shaped member is only provided at the connection between the second end 132B and the connector 141 and sealed with silicone rubber. Moreover, this improves the electrical reliability of the connection between the second end 132B and the connector 21.

[0152] Furthermore, when using a box-shaped component and silicone rubber, a position confirmation mark needs to be set on the shielding layer 114 whenever the box-shaped component is configured. Therefore, the width of the shielding layer 114 needs to be increased accordingly to the size of the mark. In contrast, when the frame component 142, which is part of the frame 140, covers the connection portion between the second end 132B and the connector 21, it is not necessary to set a position confirmation mark on the shielding layer 114 for sealing. Therefore, it is not necessary to increase the width of the shielding layer 114, which saves space and improves the aesthetics of the vehicle window glass 100.

[0153] Additionally, decorative components may be provided on the outer surface of the vehicle body at the base 141 of the frame 140. These decorative components are exterior or interior parts primarily used for window decoration. Furthermore, a control unit may be provided on the frame 140 for electrical control of the dimming panel 120. The control unit may be adhered to the surface of the frame 140 or at least partially embedded in the surface of the frame 160.

[0154] <First Variation>

[0155] The vehicle window 100M1 of the first variation of the embodiment has a structure obtained by removing the portion of the base 141 of the frame 140 of the vehicle window 100 along the inner edge 141A of the outer side of the vehicle compartment. (See reference) Figure 4 The manufacturing method of this vehicle window glass 100M1 is described.

[0156] Figure 4 This is a diagram illustrating an example of a method for manufacturing a vehicle window glass 100M1 according to a first variation of the embodiment. Figure 4 In the manufacturing process shown, in the reference Figure 3 As described above, in the stage of removing unwanted parts from the resin frame, the portion of the unframed member 142 and the connecting portion 143 on the inner edge 141B side of the inner side of the carriage, as well as the portion of the receiving portion 142A, are removed, and the inner edge portion 141A1 along the inner edge 141A on the outer side of the carriage is also removed.

[0157] like Figure 4 As shown, if the inner edge portion 141A1 is removed, the inner edge 141A of the outer side of the base 141 is offset from the position shown by the dashed leader line towards the outer edge of the laminated glass 110 in a top view, until it reaches the position shown by the solid leader line. When manufacturing the resin frame that serves as the base of the frame 140, the positions of the inner edge 141A of the outer side of the base 141 and the inner edge 141B of the inner side of the frame are equal, but by removing the inner edge portion 141A1, the position of the inner edge 141A of the outer side of the frame can be offset.

[0158] The vehicle window glass 100M1 has a frame 140 that protrudes towards the center of the laminated glass 110 when viewed from above. Therefore, when the resin frame is manufactured by injection molding, the position of the inner edge 141A of the outer side of the base 141 matches the portion of the frame 142 that is located at the center of the laminated glass 110 when viewed from above.

[0159] For example, in vehicle design, if the inner edge 141A of the outer side of the base 141 is closer to the outer edge of the laminated glass 110 than the end of the frame member 142 on the central side of the laminated glass 110 in a top view, then... Figure 4 As shown, it is sufficient to remove the inner edge portion 141A1 along the outer side of the carriage.

[0160] In addition, when applying the primer 145 in the manufacturing process of the vehicle window glass 100M1, the primer 145 need not be applied to the area formed by the inner edge portion 141A1 in the first main surface 111A of the laminated glass 110.

[0161] <Second Variation>

[0162] Figure 5A This is a diagram illustrating an example of the cross-sectional structure of a vehicle window glass 100M2, which is a second variation of the embodiment. Figure 5A Showing with Figure 2A The corresponding cross-sectional structure of a 100m² vehicle window. Figure 5B This is a diagram showing an example of the structure of a portion of the vehicle window glass 100M2 of the second modified embodiment when viewed from the -Z direction side (inside the carriage). Figure 5B This shows the vehicle window glass 100. Figure 2B The diagram shows the corresponding parts of the shown section.

[0163] The vehicle window glass 100M2 includes a frame 140M2 instead of the frame 140 of the vehicle window glass 100 in the embodiment. The base 141 and the edge member 142 of the frame 140M2 are separate and do not have a connecting part 143.

[0164] When manufacturing the vehicle window glass 100M2, during the stage of removing unnecessary parts from the resin frame that serves as the base of the frame 140M2, it is sufficient to remove only the portion of the inner edge 141B side on the inside of the passenger compartment where the frame member 142 is not provided, and the portion of the receiving part 142A. Furthermore, during the manufacturing process of the vehicle window glass 100M2, when applying the primer 145, it is sufficient to omit the primer 145 from the portion of the FPC 130 located on the -Z direction side surface between the inner edge 141B and the frame member 142 on the inside of the passenger compartment of the base 141.

[0165] In the vehicle window glass 100M2, because the portion of the surface of the FPC 130 on the -Z direction side, located between the inner edge 141B of the base 141 and the frame member 142, is exposed, as an example, a urethane sealant 30 can be applied to the exposed portion of the FPC 130. The urethane sealant 30 is applied to the fourth main surface (the exposed portion of the FPC 130) exposed by removing the portion between the frame member 142 and the base 141 in the frame 140M2. Therefore, the laminated glass 110 can be firmly fixed to the vehicle body 10 by means of the FPC 130 and the fourth main surface.

[0166] The exposed portion of FPC130 has a length in the Y direction of approximately 10mm to 15mm, for example. For instance, in the case of a body 10 with a shallow flange 12, compared to... Figure 2A Compared to the vehicle window glass 100 with urethane sealant 30 applied to the surface of the third portion 141-3 of the base 141 as shown, like Figure 5A As shown, the thickness of the vehicle window glass 100M2 in the Z direction is thinner when the urethane sealant 30 is applied to the exposed portion of the FPC130, and is therefore preferred. Even though the depth of the flange 12 is shallow, the vehicle window glass 100M2 of the second variation of the embodiment can still be installed on the vehicle body 10.

[0167] In the second variation of the embodiment, the vehicle window glass 100M2 is manufactured by removing the portion between the inner edge 141B of the base 141 on the inner side of the vehicle compartment and the frame member 142. This portion can be removed using a cutting tool or the like. Therefore, after removing this portion, traces of removal remain on the base 141 and the frame member 142. This is because scratches or other marks from the removal process remain at the junction of the base 141 and the frame member 142. Therefore, this method is different from the case where injection molding is performed using a mold that separates the base 141 and the frame member 142.

[0168] When using a mold in which the base 141 and the frame member 142 are separated, resin needs to be injected separately into the portion of the mold corresponding to the frame member 142 and the portion of the mold corresponding to the base 141. In contrast, the frame 140M2 of the vehicle window glass 100M2 in the second variation of the embodiment can be injected with resin together into the portions corresponding to the base 141 and the frame member 142 in the mold, thus making it easier to manufacture.

[0169] In the stage of manufacturing the resin frame 140M2 as the base body of the frame body 140M2 by injection molding, the frame member 142 is integrally formed with the base 141. After injection molding, the portion between the base 141 and the frame member 142 is removed, so there is no need to position the frame member 142 separately from the base 141. Furthermore, when positioning the mold used to form the resin frame 140M2 as the base body of the frame body, the positioning of the frame member 142 is also performed automatically. Therefore, the frame member 142 with high-precision positioning can be manufactured through simple operation.

[0170] <Third Variation>

[0171] Figure 6 This is a diagram showing an example of the structure of a portion of the vehicle window glass 100M3 in the third variation of the embodiment when viewed from the -Z direction side (inside the carriage). Figure 6 This shows the window glass 100 of the vehicle. Figure 2B The diagram shows the corresponding parts of the shown section.

[0172] The vehicle window glass 100M3 includes a frame 140M3 instead of the frame 140 of the vehicle window glass 100 in the embodiment. In the frame 140M3, during the process of removing unnecessary parts after manufacturing the resin frame, the portion where the receiving part 142A is located is removed, but other parts are retained. That is, the frame 140M3 differs from the frame 140 of the embodiment (see [reference]). Figure 2A and Figure 2B The portion of the inner edge 141B side of the carriage without a frame 142 and the connecting portion 143 is retained instead of being removed.

[0173] The frame 140M3 has a structure obtained by removing only the portion where the receiving part 142A is provided from the resin frame that serves as the base of the frame 140M3. Therefore, in a top view, the position of the inner edge 141A on the outer side of the frame 140M3 and the inner edge 141B on the inner side of the frame 140M3 are equal. The frame 140M3 includes portions corresponding to the base 141, the side frame member 142, and the connecting part 143, but does not have a portion with a neat outline that serves as the base 141, the side frame member 142, and the connecting part 143.

[0174] As an example, on the inner surface of the carriage in the resin frame that serves as the base of the frame 140M3, the receiving part 142A can be easily manufactured by marking the part where the receiving part 142A is provided beforehand and removing the resin from the part where the receiving part 142A is provided with tools.

[0175] For example, when a clamp for mounting a vehicle window glass 100M3 to a vehicle body 10 can be provided on a laminated glass 110 that has a frame 140M3 obtained by removing only the portion where the receiving part 142A is provided from the resin frame, a structure such as frame 140M3 can be adopted. Frame 140M3 has fewer unnecessary parts, thus making manufacturing easier. Furthermore, when assembling the mold for manufacturing the resin frame that serves as the base of frame 140M3, the position of the receiving part 142A, which forms the connection portion surrounding the connector 21 of the wire harness 20 at the second end 132B of the FPC 130, is also positioned, thus enabling the receiving part 142A to be manufactured with high precision.

[0176] Furthermore, by filling the interior of the housing 142A with silicone resin 150, the connection portion between the second end 132B of the FPC 130 and the connector 21 of the wire harness 20 can be sealed.

[0177] In addition, when manufacturing the frame 140M3, when applying the primer, it is sufficient to apply the primer only to the portion covered by the resin frame, excluding the portion that becomes the receiving part 142A.

[0178] The above description illustrates the vehicle window glass and the method for manufacturing the vehicle window glass. However, the present disclosure is not limited to the specific embodiments disclosed, and various modifications and alterations can be made without departing from the scope of the claims.

[0179] Furthermore, this international application claims priority based on Japanese Patent Application No. 2023-190671, filed on November 8, 2023, the entire contents of which are incorporated herein by reference.

[0180] Symbol Explanation

[0181] 10. Body

[0182] 11. Opening

[0183] 12 flanges

[0184] 20 wire harness

[0185] 21 Connectors

[0186] 30. Carbamate sealant (an example of an adhesive)

[0187] 100m1, 100m2, 100m3 vehicle window glass

[0188] 110 Laminated Glass

[0189] 111 First Glass Plate

[0190] 111A First Main Face

[0191] 111B Second Main Face

[0192] 111C First Side View

[0193] 112 Second glass plate

[0194] 112A Third Main Face

[0195] 112B Fourth Main Face

[0196] 112C Second Side

[0197] 113 Intermediate Membrane

[0198] 113A First Intermediate Membrane

[0199] 113B Second Intermediate Membrane

[0200] 113C Third Intermediate Membrane

[0201] 114 Shielding layer

[0202] 120 Dimming panel (an example of a thin electrical component or functional film)

[0203] 130 FPC (an example of a flexible substrate)

[0204] 131 substrate

[0205] 132 wiring

[0206] 132A First End

[0207] 132B Second End

[0208] 133 Covering layer

[0209] 134 Double-sided tape

[0210] 140, 140m², 140m³ frame

[0211] 141 Base

[0212] Inner edge of 141A, 141B

[0213] 141C outer edge

[0214] 142 Border Components

[0215] Containment Department 142A

[0216] 143 Connecting part

[0217] 144. Lips.

Claims

1. A window glass for a vehicle, comprising: a laminated glass provided to an opening portion of a vehicle body, the laminated glass having a first glass sheet having a first main face, a second main face, and a first side face, a second glass sheet having a third main face, a fourth main face, and a second side face, and an interlayer film provided between the second main face and the third main face; a thin electric component provided between the second main face and the third main face; a wiring extending along the third main face, the second side face, and the fourth main face between a first end portion connected to the thin electric component between the second main face and the third main face and a second end portion provided on the fourth main face and connected to a wire harness on the vehicle body side; a frame body made of a resin, the frame body covering an outer edge of the laminated glass in plan view and the wiring, and having a bezel member provided on the fourth main face and surrounding the second end portion in plan view; and a sealing member sealing a space surrounded by the fourth main face and the bezel member. The bezel member is integrally formed with the frame body.

2. The window pane for a vehicle according to claim 1, wherein The frame body has:

3. The window pane for a vehicle according to claim 1 or 2, wherein a frame-shaped base portion covering the outer edge of the laminated glass and the wiring; and a connecting portion connecting the base portion and the bezel member.

4. The window glass for a vehicle according to claim 1 or 2, wherein the frame body has a frame-shaped base portion covering the outer edge of the laminated glass and the wiring; a portion between the bezel member and the base portion in the frame body is removed. The bezel member is located on an inner edge side of the frame-shaped base portion in plan view.

5. The window pane for a vehicle according to claim 3 or 4, wherein 6. The window glass for a vehicle according to claim 5, wherein the base portion has: a first portion provided on the first main face, a second portion provided on the first side face and the second side face, and a third portion provided on the fourth main face, the bezel member is provided at a position overlapping the first portion in plan view. An adhesive for bonding the window glass for a vehicle to the vehicle body is applied to the third portion of the base portion.

7. The window pane for a vehicle according to claim 6, wherein An adhesive for bonding the window glass for a vehicle to the vehicle body is applied to the fourth main face exposed by removing the portion between the bezel member and the base portion in the frame body.

8. The window pane for a vehicle according to claim 4, wherein 9. The window glass for a vehicle according to claim 8, wherein a portion of the wiring is exposed on the fourth main face exposed by removing the portion between the bezel member and the base portion in the frame body, the adhesive is applied to the exposed portion of the wiring. The sealing member is formed of silicone rubber.

10. The window pane for a vehicle according to any one of claims 1 to 9, wherein 11. The window glass for a vehicle according to any one of claims 1 to 10, wherein a substrate is further included, the substrate extending along the third main face, the second side face, and the fourth main face between the first end portion and the second end portion and provided with the wiring, the wiring and the substrate constitute a flexible substrate. The thin electric component is a functional film, or an electric heating wire or a conductive film for heating.

12. The window pane for a vehicle according to any one of claims 1 to 11, wherein ​ 13. The window pane for a vehicle according to any one of claims 1 to 12, wherein The first glass sheet is located on the outside of the vehicle cabin of the vehicle body, and the second glass sheet is located on the inside of the vehicle cabin of the vehicle body.

14. A window glass for a vehicle, comprising: a laminated glass provided to an opening portion of a vehicle body, the laminated glass having a first glass sheet, a second glass sheet, and an interlayer film, the first glass sheet having a first main surface, a second main surface, and a first side surface, the second glass sheet having a third main surface, a fourth main surface, and a second side surface, the interlayer film being provided between the second main surface and the third main surface; a thin electric component provided between the second main surface and the third main surface; a wire extending along the third main surface, the second side surface, and the fourth main surface between a first end portion and a second end portion, the first end portion being connected to the thin electric component between the second main surface and the third main surface, the second end portion being provided on the fourth main surface and being connected to a wire harness on the vehicle body side; a frame body made of a resin, the frame body covering an outer edge of the laminated glass in plan view and the wire, and having a through hole provided on the fourth main surface and exposing the second end portion in plan view; and a sealing member sealing a space surrounded by the fourth main surface and the through hole.

15. A method of manufacturing a window glass for a vehicle, the method being a method of manufacturing the window glass for a vehicle according to claim 1, wherein: the interlayer film and the thin electric component are provided between the first glass sheet and the second glass sheet, the wire is connected to the thin electric component, the frame body is formed so as to cover the wire in plan view of an outer edge of the laminated glass provided with the thin electric component, a space surrounded by the fourth main surface and the frame body is sealed with a sealing member. ​

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