Vehicle window glass and vehicle

Abstract

This application provides a vehicle window glass and a vehicle. The vehicle window glass includes a first glass panel, a second glass panel, and an intermediate layer. Along the thickness direction of the vehicle window glass, the intermediate layer is sandwiched between the first and second glass panels. The vehicle window glass includes a shielded area and an unshielded area, with the shielded area surrounding the unshielded area and their edges connected. The intermediate layer includes a first portion and a second portion, with the first portion surrounding the second portion and their edges connected. The haze of the first portion is greater than that of the second portion. Along the thickness direction of the vehicle window glass, the first portion completely overlaps with the shielded area, and the second portion completely overlaps with the unshielded area. This application eliminates the need to print ceramic ink in the shielded area of ​​the vehicle window glass to create a shielding effect, thus ensuring the structural strength of the vehicle window glass.

Description

Technical Field

[0001] This application relates to the field of glass product technology, particularly automotive window glass and vehicles. Background Technology

[0002] Currently, ceramic ink is typically printed on the edges of automotive glass to form a shielding layer. Its main functions are twofold: 1. The black edge formed by the ceramic ink covers the sealing strip at the edge of the automotive glass, blocking direct sunlight from reaching the sealing strip and preventing it from aging and being damaged by constant exposure to ultraviolet rays from sunlight; 2. It ensures the overall aesthetics from the outside, concealing traces of the sealing strip and various accessories on the inner surface of the automotive glass.

[0003] In existing technologies, automotive glass undergoes high-temperature heat treatment and bending during production. Because the ceramic ink is located on the glass surface and its thermal conductivity is higher than that of glass, it typically reaches room temperature before the glass during cooling. Even when the ceramic ink reaches room temperature and solidifies, the glass in contact with it remains above room temperature. As the glass continues to cool and solidify, the solidified ceramic ink applies stress to the glass edges, causing stress concentration and reducing the structural strength of these edges. Consequently, the glass edges are more prone to cracking under impact. Summary of the Invention

[0004] The purpose of this application is to provide a vehicle window glass and a vehicle that can ensure the structural strength of the vehicle window glass and improve the safety performance of the vehicle.

[0005] The first aspect of this application provides a vehicle window glass, including a first glass plate, a second glass plate and an intermediate layer. Along the thickness direction of the vehicle window glass, the intermediate layer is sandwiched between the first glass plate and the second glass plate. The vehicle window glass includes a shielded area and an unshielded area. The shielded area surrounds the unshielded area, and the edge of the shielded area is connected to the edge of the unshielded area.

[0006] The intermediate layer includes a first part and a second part, the first part surrounds the second part, the first part is connected to the edge of the second part, and the haze of the first part is greater than or equal to 10%.

[0007] Along the thickness direction of the window glass, the first part completely overlaps with the shaded area, and the second part completely overlaps with the unshaded area.

[0008] Understandably, by ensuring the haze of the first part of the intermediate layer is greater than or equal to 10%, and that the first part of the intermediate layer completely overlaps with the shaded area, while the second part of the intermediate layer completely overlaps with the unshaded area, the shaded area of ​​the car window can achieve high haze—that is, a haze of greater than or equal to 10%—thus realizing the shading effect of the shaded area of ​​the car window. Therefore, it is unnecessary to print ceramic ink in the shaded area of ​​the car window to create a shading effect, thereby avoiding the stress exerted on the edges of the car window during the curing process of the ceramic ink, ensuring the structural strength of the car window; and preventing the edges of the car window from easily breaking under external impact, thus ensuring the safety performance of the car window.

[0009] In one possible implementation, the haze of the first portion is greater than that of the second portion.

[0010] In one possible implementation, the intermediate layer includes a plurality of adhesive layers, each adhesive layer including a first part and a second part, the first part surrounding the second part, the first part being connected to the edge of the second part, and the haze of the first part of at least one adhesive layer being greater than or equal to 10%.

[0011] Along the thickness direction of the vehicle window glass, a plurality of adhesive layers are stacked sequentially, the first parts of the plurality of adhesive layers completely overlap, and the first parts of the plurality of adhesive layers together form the first part, the second parts of the plurality of adhesive layers completely overlap, and the second parts of the plurality of adhesive layers together form the second part.

[0012] In one possible implementation, the first part with a haze greater than or equal to 10% includes a matrix and colorant particles, wherein the colorant particles are uniformly distributed in the matrix, and the matrix is ​​PVB, EVA, PU, ​​PC, PMMA or SGP, and the colorant particles are CaCO3, CaSO4, MgSO4, MgO, ZnSO4 or ZnO.

[0013] In one possible implementation, the window glass further includes a haze layer that completely covers the shielding area along the thickness direction of the window glass.

[0014] In one possible implementation, the intermediate layer includes multiple adhesive layers, each adhesive layer including a first part and a second part, the first part surrounding the second part, the first part being connected to the edge of the second part, the multiple adhesive layers being stacked sequentially along the thickness direction of the window glass, the first parts of the multiple adhesive layers completely overlapping and forming the first part together, the second parts of the multiple adhesive layers completely overlapping and forming the second part together;

[0015] The haze layer is a dimming film, which is sandwiched between any two adhesive layers along the thickness direction of the window glass.

[0016] In one possible implementation, the first glass plate includes a first surface and a second surface disposed opposite to the first surface, the second surface facing the intermediate layer; the second glass plate also includes a third surface and a fourth surface disposed opposite to the third surface, the third surface facing the intermediate layer.

[0017] The haze layer is a functional layer, and at least one of the first surface, the second surface, the third surface, or the fourth surface is provided with the functional layer.

[0018] In one possible implementation, the shielding area has a haze HS1, wherein HS1 ≥ 50%, HS1 ≥ 80%, or HS1 ≥ 90%.

[0019] In one possible implementation, the unshaded area has a haze HS2, wherein HS2 ≤ 10%, HS2 ≤ 5%, or HS2 ≤ 2%.

[0020] In one possible implementation, the ratio of HS1 to HS2 is in the range of 4 ≤ HS1 / HS2 ≤ 48.

[0021] In one possible implementation, the shielding area has a visible light transmittance TL1, wherein TL1 ≤ 80%, TL1 ≤ 10%, TL1 ≤ 5%, or TL1 ≤ 1%.

[0022] In one possible implementation, the unshaded area has a visible light transmittance TL2, wherein TL2 > 70%, or TL2 ≤ 70%, or TL2 ≤ 30%, or TL2 ≤ 10%.

[0023] In one possible implementation, the shielding area has an ultraviolet transmittance T1. UV T1 UV ≤1%, or T1 UV ≤0.1%;

[0024] The unshaded area has an ultraviolet transmittance T2 UV T2 UV ≤1%, or T2 UV ≤0.1%.

[0025] A second aspect of this application provides a vehicle, including a vehicle body, an interior trim, and a window glass as described above, wherein the window glass is connected to the vehicle body, and the interior trim is located inside the vehicle body;

[0026] Along the thickness direction of the window glass, the interior trim's orthographic projection onto the window glass is at least partially located within the shaded area.

[0027] The beneficial effects of this application are as follows: By ensuring that the haze of the first part of the intermediate layer is greater than or equal to 10%, high haze can be achieved in the shaded area of ​​the vehicle window glass, thereby providing a shading effect on the interior trim. Furthermore, by adding a haze layer to the shaded area of ​​the vehicle window glass, the haze level in that area is further improved. This application eliminates the need to print ceramic ink in the shaded area of ​​the vehicle window glass to create a shading effect, thus avoiding the application of stress to the edges of the vehicle window glass during the curing process of the ceramic ink, ensuring the structural strength of the vehicle window glass; and preventing the edges of the vehicle window glass from easily breaking under external impact, thereby ensuring the safety performance of the vehicle window glass. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the vehicle structure provided in an embodiment of this application;

[0029] Figure 2 for Figure 1 A schematic diagram of the planar structure of the vehicle's window glass perpendicular to the thickness direction.

[0030] Figure 3 for Figure 1 A schematic diagram of the layer structure of the first embodiment of the vehicle window glass shown;

[0031] Figure 4 for Figure 1 A schematic diagram of the layer structure of the second embodiment of the vehicle window glass shown;

[0032] Figure 5 for Figure 1 A schematic diagram of the layer structure of the third embodiment of the vehicle window glass shown.

[0033] Explanation of reference numerals in the attached figures:

[0034] 1000 - Vehicle, 200 - Vehicle body, 100 - Window glass, 10 - Laminated glass, 11 - First glass panel, 12 - Second glass panel, 111 - First surface, 112 - Second surface, 121 - Third surface, 122 - Fourth surface, 13 - Intermediate layer, 133 - Adhesive layer, 13a - First part, 13b - Second part, S1 - Shielding area, S2 - Unshielded area, 20 - Heat insulation layer, 30 - Low-emissivity layer, 40 - Dimming film, 50 - Functional layer. Detailed Implementation

[0035] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0036] Currently, most car windows are laminated glass. Ceramic ink is typically screen-printed along the edges of the laminated glass to create a shielding effect. Since the screen-printing molds are mostly flat, the edges of each individual glass panel must be screen-printed while it is still flat to form a ceramic ink layer. Subsequently, the individual glass panels undergo high-temperature heat treatment to bend and shape them. Finally, multiple bent glass panels are bonded together using a thermoplastic layer to form laminated glass.

[0037] During the bending and forming of a single glass sheet, because the ceramic ink is located on the surface of the glass and its thermal conductivity is greater than that of the glass, the ceramic ink cools faster than the glass, typically reaching room temperature before the glass. When the ceramic ink reaches room temperature and solidifies, the glass in contact with it remains above room temperature. As the glass continues to cool and solidify, the solidified ceramic ink applies stress to the edges of the single glass sheet, causing stress concentration at these edges and reducing their structural strength. Therefore, the edges of the single glass sheet are prone to breakage under impact. Consequently, laminated glass assembled from single glass sheets is susceptible to breakage at its edges under impact.

[0038] Based on this, this application provides a vehicle window glass 100 that can ensure the structural strength of the vehicle window glass 100. Applying the vehicle window glass 100 of this application to a vehicle 1000 can improve the safety performance of the vehicle 1000.

[0039] It should be noted that the vehicle 1000 described in this application can be, but is not limited to, a means of transportation such as a car, a train, and rail transit. The vehicle window glass 100 can be, but is not limited to, the windshield, side windows, rear windshield, and sunroof of the vehicle 1000. This application embodiment only uses a car as an example and a windshield as an example for illustration.

[0040] Please refer to the following: Figure 1 and Figure 2 The vehicle 1000 includes a body 200 and a window 100. The window 100 is connected to the body 200. The vehicle 1000 also includes interior trim (not shown) and body sheet metal parts of the vehicle 1000.

[0041] For ease of description, define Figure 2 The width direction of the window glass 100 is the X-axis, the height direction is the Y-axis, and the thickness direction is the Z-axis. The X-axis, Y-axis, and Z-axis are mutually perpendicular. In this application, directional terms such as "top" and "bottom" refer to the direction facing the positive Y-axis, and "bottom" refers to the direction facing the negative Y-axis; similar descriptions in the following text can be understood in the same way.

[0042] The vehicle window 100 has a shaded area S1 and an unshaded area S2. The shaded area S1 and the unshaded area S2 do not overlap. The shaded area S1 surrounds the unshaded area S2. The edges of the shaded area S1 and the unshaded area S2 are connected. The shaded area S1 is used to block visible light and ultraviolet rays from outside the vehicle 1000 from entering the interior of the vehicle 1000. The unshaded area S2 allows light to pass through both the interior and exterior, serving as the vehicle window.

[0043] The shaded area S1 has a haze HS1. The haze HS1 of the shaded area S1 is ≥10%. Further, the haze HS1 of the shaded area S1 is ≥50%, or ≥80%, or ≥90%. The shaded area S1 has a visible light transmittance TL1. TL1 is ≤80%. Further, TL1 is ≤10%, or ≤5%, or ≤1%. The shaded area S1 has an ultraviolet transmittance T1. UV T1 UV ≤1%. Furthermore, T1 UV ≤0.1%.

[0044] The unshaded area S2 has a haze HS2. It is understood that the haze HS2 of the unshaded area S2 can be equal to the haze HS1 of the shaded area S1. In some embodiments, the haze HS2 of the unshaded area S2 is ≤10%. Further, the haze HS2 of the unshaded area S2 is ≤5%, or HS2 ≤2%. The unshaded area S2 has a visible light transmittance TL2. TL2 >70%, or TL2 ≤70%, or TL2 ≤30%, or TL2 ≤10%. It is understood that when TL2 >70%, the window glass 100 is suitable for the windshield; when TL2 ≤70%, the window glass 100 is suitable for the rear door glass, rear windshield, or sunroof of the vehicle 1000. The unshaded area S2 has an ultraviolet transmittance T2. UV T2 UV ≤1%. Furthermore, T2 UV ≤0.1%.

[0045] Furthermore, the ratio of the haze HS1 in the shaded area S1 to the haze HS2 in the unshaded area S2 is in the range of 4 ≤ HS1 / HS2 ≤ 48. For example, the ratio of the haze HS1 in the shaded area S1 to the haze HS2 in the unshaded area S2 is 4, 8, 16, 20, 24, 28, 32, 36, 40, 44, or 48, etc.

[0046] In this embodiment, along the thickness direction (Z-axis direction) of the window glass 100, at least part of the orthographic projection of the interior trim (not shown) and the body sheet metal parts of the vehicle 1000 onto the window glass 100 lies within the shielding area S1. The shielding area S1 can shield the connection between the window glass 100 and the vehicle 1000, thereby preventing an observer from clearly seeing the connection structure between the window glass 100 and the vehicle 1000 from outside the vehicle, achieving an aesthetic effect.

[0047] Please see Figure 3 This application provides a first embodiment of a vehicle window glass 100. In this embodiment, the vehicle window glass 100 includes laminated glass 10. High haze in the shading area S1 is achieved by locally having high haze in the laminated glass 10.

[0048] The laminated glass 10 includes a first glass plate 11, a second glass plate 12, and an intermediate layer 13, with the intermediate layer 13 sandwiched between the first glass plate 11 and the second glass plate 12. The first glass plate 11 includes a first surface 111 and a second surface 112 facing away from each other. The second surface 112 faces the intermediate layer 13. The second glass plate 12 includes a third surface 121 and a fourth surface 122 facing away from each other. The third surface 121 faces the intermediate layer 13. The intermediate layer 13 connects the second surface 112 and the third surface 121. It is understood that the first glass plate 11 can be closer to the exterior of the vehicle 1000 relative to the second glass plate 12, or it can be closer to the interior of the vehicle 1000 relative to the second glass plate 12. This embodiment is only described using the example of the first glass plate 11 being closer to the exterior of the vehicle 1000 relative to the second glass plate 12.

[0049] For example, the specific structure of the laminated glass 10 can be: the first glass plate 11 is the outer glass plate of the laminated glass 10 (the glass plate located outside the vehicle 1000), and the second glass plate 12 is the inner glass plate of the laminated glass 10 (the glass plate located inside the vehicle 1000). Furthermore, the specific structure of the laminated glass 10 can also be as follows: when the laminated glass 10 further includes an outer glass plate and an additional intermediate layer 13, the outer glass plate is bonded to the first surface 111 of the first glass plate 11 through the additional intermediate layer 13 along the thickness direction of the laminated glass 10. In this case, both the first glass plate 11 and the second glass plate 12 are inner glass plates (glass plates located inside the vehicle 1000); or, when the laminated glass 10 further includes an inner glass plate and an additional intermediate layer 13, the inner glass plate is bonded to the fourth surface 122 of the second glass plate 12 through the additional intermediate layer 13 along the thickness direction of the laminated glass 10. In this case, the first glass plate 11 is an outer glass plate (glass plate located outside the vehicle 1000), and the second glass plate 12 is an inner glass plate (glass plate located inside the vehicle 1000). This application embodiment uses the example of the first glass plate 11 being the outer glass plate and the second glass plate 12 being the inner glass plate of the laminated glass 10 for illustration.

[0050] The outer glass panel is made of transparent or tinted glass. The thickness of the outer glass panel is 1.6 mm to 6.0 mm (inclusive). For example, the thickness of the outer glass panel can be, but is not limited to, 1.6 mm, 3.2 mm, 4.8 mm, or 6.0 mm. The visible light transmittance of the outer glass panel is 1% to 99% (inclusive). For example, the visible light transmittance of the outer glass panel can be, but is not limited to, 1%, 2%, 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, or 99%. The outer glass panel can be inorganic glass or organic glass. The material of the outer glass panel can be, but is not limited to, soda-lime glass, borosilicate glass, aluminosilicate glass, polymethyl methacrylate, polycarbonate, etc. Further, the material of the outer glass panel is soda-lime glass.

[0051] The inner glass panel is made of transparent or tinted glass. The thickness of the inner glass panel ranges from 0.7 mm to 6.0 mm (inclusive). For example, the thickness can be, but is not limited to, 0.7 mm, 1.4 mm, 2.1 mm, 2.8 mm, 3.5 mm, 4.2 mm, 4.9 mm, 5.6 mm, or 6.0 mm. The visible light transmittance of the inner glass panel ranges from 1% to 99% (inclusive). For example, the visible light transmittance can be, but is not limited to, 1%, 2%, 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, or 99%. The inner glass panel can be inorganic or organic glass. The material of the inner glass panel can be, but is not limited to, soda-lime glass, borosilicate glass, aluminosilicate glass, polymethyl methacrylate, polycarbonate, etc. Furthermore, the inner glass panel is made of soda-lime glass.

[0052] In this embodiment, the intermediate layer 13 includes at least one adhesive layer 133. The adhesive layer 133 is a transparent thermoplastic polymer film or a colored thermoplastic polymer film. The thickness of the adhesive layer 133 is 0.38 mm to 1.52 mm (inclusive of endpoint values). For example, the thickness of the adhesive layer 133 can be, but is not limited to, 0.38 mm, 0.76 mm, 1.14 mm, or 1.52 mm. Further, the thickness of the adhesive layer 133 is 0.76 mm. Even further, the thickness of the adhesive layer 133 is 0.80 mm. The thermoplastic polymer film can be made of at least one material selected from polyvinyl butyral (PVB), polyurethane (PU), ethylene-vinyl acetate copolymer (EVA), polycarbonate (PC), polymethyl methacrylate (PMMA), and ionic polymer (SentryGlasPlus, SGP). The adhesive layer 133 blocks ultraviolet light transmission. The adhesive layer 133 has an ultraviolet transmittance T0. UV T0 UV ≤1%. For example, T0 UV It can be, but is not limited to, 1%, 0.8%, 0.6%, 0.4%, or 0.2%, etc. Furthermore, T0 UV ≤0.1%.

[0053] The adhesive layer 133 includes a first part and a second part. The first part of the adhesive layer 133 is circumferentially disposed around the second part. The first part is located outside the second part, and the second part is located inside the first part. The first part surrounds the periphery of the second part and completely encloses the second part. The shape of the first part matches the shape of the laminated glass 10. The first part is an annular frame shape and surrounds the periphery of the second part.

[0054] In one possible implementation, the intermediate layer 13 is a single-layer structure. The intermediate layer 13 includes an adhesive layer 133. The first part of the adhesive layer 133 is also the first portion 13a of the intermediate layer 13, and the second part of the adhesive layer 133 is also the second portion 13b of the intermediate layer 13. It can be understood that the intermediate layer 13 includes the first portion 13a and the second portion 13b, the first portion 13a surrounds the second portion 13b, and the edges of the first portion 13a and the second portion 13b are connected.

[0055] In another possible implementation, the intermediate layer 13 has a multi-layer structure. The intermediate layer 13 includes multiple adhesive layers 133. Along the thickness direction (Z-axis direction) of the window glass 100, the multiple adhesive layers 133 are stacked sequentially. Specifically, the first portions of the multiple adhesive layers 133 overlap each other, and the stacked first portions of the multiple adhesive layers 133 form a first portion 13a of the intermediate layer 13. The second portions overlap each other, and the stacked second portions of the multiple adhesive layers 133 form a second portion 13b of the intermediate layer 13. It can be understood that the intermediate layer 13 includes a first portion 13a and a second portion 13b, the first portion 13a surrounds the second portion 13b, and the edges of the first portion 13a and the second portion 13b are connected.

[0056] It should be noted that the first part 13a and the second part 13b of the intermediate layer 13 are only used to divide the entire intermediate layer 13 into regions, and are not a mandatory requirement that the first part 13a and the second part 13b must be two relatively independent entities. That is, the first part 13a and the second part 13b can be a structure formed by one piece or a structure formed by splicing in other ways. This application does not limit this. Figure 3 The dashed lines are only used to divide the first part 13a and the second part 13b of the intermediate layer 13, and do not constitute a limitation on the specific structure of the laminated glass 10.

[0057] Please continue reading. Figure 3In this embodiment, the first glass plate 11 and the second glass plate 12 are bonded together by an intermediate layer 13. Along the thickness direction (Z-axis direction) of the window glass 100, the shielding area S1 completely overlaps with the first portion 13a of the intermediate layer 13; the non-shielded area S2 completely overlaps with the second portion 13b of the intermediate layer 13. High haze is achieved in the shielding area S1 of the window glass 100 by locally creating high haze in the laminated glass 10. The haze of the first portion 13a of the intermediate layer 13 is greater than or equal to 10%. Specifically, when the intermediate layer 13 is a single-layer structure, the haze of the first portion of a single adhesive layer 133 is greater than or equal to 10%. When the intermediate layer 13 is a multi-layer structure, the haze of the first portion of at least one adhesive layer 133 is greater than or equal to 10%.

[0058] It is understandable that when the haze HS1 of the shaded area S1 is greater than the haze HS2 of the unshaded area S2, the haze of the first part 13a of the intermediate layer 13 can be greater than the haze of the second part 13b.

[0059] It should be noted that colorant particles can be added to the first part of the adhesive layer 133. These colorant particles increase the light scattering of the first part of the adhesive layer 133, thereby increasing the haze of the first part of the adhesive layer 133. For example, the first part of the adhesive layer 133 includes a matrix and colorant particles, with the colorant particles uniformly distributed in the matrix. The matrix can be PVB, EVA, PU, ​​PC, PMMA, or SGP, and the colorant particles can be CaCO3, CaSO4, MgSO4, MgO, ZnSO4, or ZnO.

[0060] It is understandable that by ensuring the haze of the first portion 13a of the intermediate layer 13 is greater than or equal to 10%, and that the first portion 13a of the intermediate layer 13 completely overlaps with the shielded area S1, and the second portion 13b of the intermediate layer 13 completely overlaps with the unshielded area S2, the shielded area S1 of the vehicle window glass 100 can have high haze, that is, the haze HS1 of the shielded area S1 is greater than or equal to 10%, thus achieving the shielding effect of the shielded area S1 of the vehicle window glass 100. Therefore, it is unnecessary to print ceramic ink on the shielded area S1 of the vehicle window glass 100 to form a shielding effect, thereby avoiding the application of stress to the edge of the vehicle window glass 100 during the curing process of the ceramic ink, ensuring the structural strength of the vehicle window glass 100; and preventing the edge of the vehicle window glass 100 from easily breaking when subjected to external impact, thus ensuring the safety performance of the vehicle window glass 100.

[0061] The first glass plate 11 and the second glass plate 12 are bonded together by the intermediate layer 13 after the first glass plate 11 and the second glass plate 12 have undergone a bending and forming process. Therefore, the intermediate layer 13 does not need to undergo high-temperature heat treatment, and the optical performance of the intermediate layer 13 is more stable, thereby making the optical performance of the car window glass 100 more stable.

[0062] It should be noted that in this application, the haze of the first portion 13a of the intermediate layer 13 is greater than or equal to 10%, thereby achieving a high haze in the shielding area S1 of the vehicle window glass 100, and thus achieving the shielding effect of the shielding area S1. This replaces the method of setting ceramic ink in the shielding area S1, ensuring the structural strength of the vehicle window glass 100. The shielding area S1 may or may not have an ink layer. The proportion of the ink layer in the shielding area S1 to the area of ​​the shielding area S1 is less than or equal to 10%. For example, an ink layer can be set in the shielding area S1 to mark the vehicle window glass 100.

[0063] Please continue reading. Figure 3 In this embodiment, the vehicle window glass 100 may further include a heat insulation layer 20 and a low-emissivity layer 30. The heat insulation layer 20 is used to adjust the heat insulation performance of the vehicle window glass 100. The low-emissivity layer 30 is used to adjust the radiation performance of the vehicle window glass 100. The heat insulation layer 20 and the low-emissivity layer 30 may be disposed on the first surface 111, the second surface 112, the third surface 121, or the fourth surface 122 of the laminated glass 10. The heat insulation layer 20 and the low-emissivity layer 30 are respectively located on different surfaces of the laminated glass 10. For example, as shown... Figure 3 A heat insulation layer 20 is laminated on the second surface 112 of the first glass panel 11. A low-emissivity layer 30 is laminated on the fourth surface 122 of the second glass panel 12. Along the thickness direction (Z-axis direction) of the window glass 100, the heat insulation layer 20 completely covers the unshaded area S2. Along the thickness direction (Z-axis direction) of the window glass 100, the low-emissivity layer 30 completely covers the unshaded area S2.

[0064] In other embodiments, the window glass 100 may also be without the heat insulation layer 20 or the low-emissivity layer 30.

[0065] The thermal insulation layer 20 includes a functional metal layer and multiple dielectric layers. Dielectric layers are stacked on opposite sides of the functional metal layer along the thickness direction of the thermal insulation layer 20. The number of functional metal layers can be one or more. Both the functional metal layer and the dielectric layers can be deposited using chemical vapor deposition (CVD) or physical vapor deposition (PVD). For example, both the functional metal layer and the dielectric layers are deposited by magnetron sputtering.

[0066] The functional metal layer can be a metal layer or an alloy layer. For example, the material of the functional metal layer can be a metal or metal alloy selected from at least one element selected from Ag, Au, Cu, Al, and Pt. The material of the dielectric layer can be at least one nitride, oxide, or oxynitride selected from metals and their alloys such as Zn, Sn, Ti, Si, Al, Ni, Cr, Nb, Mg, Zr, Ga, Y, In, Sb, V, and Ta.

[0067] The emissivity E of the low-emissivity layer 30 is ≤0.3. The low-emissivity layer 30 includes at least one dielectric layer. The dielectric layer can be deposited by chemical vapor deposition (CVD) or physical vapor deposition (PVD). For example, the dielectric layer is deposited by magnetron sputtering.

[0068] The material of the dielectric layer can be at least one of the nitrides, oxides, and oxynitrides of metals and their alloys such as Zn, Sn, Ti, Si, Al, Ni, Cr, Nb, Mg, Zr, Ga, Y, In, Sb, V, and Ta.

[0069] The following describes specific examples of vehicle window glass 100 with different structures.

[0070] Example 1:

[0071] The first glass plate 11 and the second glass plate 12 are both 2.1 mm thick green glass. The haze of the first glass plate 11 and the second glass plate 12 is uniform. The intermediate layer 13 is a single-layer structure. The haze of the first part 13a of the intermediate layer 13 is greater than 10%. The visible light transmittance of the second part 13b of the intermediate layer 13 is 90%.

[0072] Example 2:

[0073] The difference between the car window glass 100 in Example 2 and the car window glass 100 in Example 1 is that both the first glass panel 11 and the second glass panel 12 are dark-colored glass with a thickness of 2.1 mm.

[0074] Example 3:

[0075] The difference between the car window glass 100 in Example 3 and the car window glass 100 in Example 1 is that both the first glass panel 11 and the second glass panel 12 are transparent glass with a thickness of 2.1 mm. A heat insulation layer 20 is provided on the second surface 112 of the first glass panel 11.

[0076] Example 4:

[0077] The difference between the window glass 100 in Example 4 and the window glass 100 in Example 3 is that a low-emissivity layer 30 is provided on the fourth surface 122 of the second glass panel 12. The visible light transmittance of the second portion 13b of the intermediate layer 13 is 8%.

[0078] Example 5:

[0079] The difference between the window glass 100 in Example 5 and the window glass 100 in Example 4 is that the visible light transmittance of the second part 13b of the intermediate layer 13 is 6%.

[0080] Example 6:

[0081] The difference between the window glass 100 in Example 6 and the window glass 100 in Example 5 is that the visible light transmittance of the second part 13b of the intermediate layer 13 is 2%.

[0082] In this embodiment, the haze of the intermediate layer 13 is measured using a spectrophotometer (company: PERKINELMER, model: LAMBDA950) according to standard JIS R3212. The haze and visible light transmittance of the shaded area S1 and the unshaded area S2 of the vehicle window glass 100 are measured using a spectrophotometer (company: PERKINELMER, model: LAMBDA950) according to standard GB / T2410.

[0083] Table 1: Parameters of the shaded area S1 and the unshaded area S2 of the vehicle window glass 100 in Examples 1-6

[0084]

[0085]

[0086] As shown in Table 1, the haze HS1 of the shaded area S1 of the window glass 100 in Examples 1-6 is greater than 80%, and the visible light transmittance TL1 of the shaded area S1 is less than 6%. Therefore, the shaded area S1 of the window glass 100 in Examples 1-6 can effectively block visible light transmission. In Examples 1 and 3, the haze HS2 of the unshaded area S2 of the window glass 100 is less than 2%, and the visible light transmittance TL2 of the unshaded area S2 is greater than 77%. Therefore, the unshaded area S2 of the window glass 100 in Examples 1 and 3 can be used as a viewing window, and the window glass 100 in Examples 1 and 3 is suitable for the windshield of the vehicle 1000. In Examples 2 and 4-6, the haze HS2 of the unshaded area S2 of the window glass 100 is less than 6%, and the visible light transmittance TL2 of the unshaded area S2 is less than 17%. Therefore, the unshaded area S2 in Examples 2 and 4 to 6 can block the view, and the window glass 100 of Examples 2 and 4 to 6 is suitable for the rear window or sunroof of the vehicle 1000. By making the haze of the first part 13a of the intermediate layer 13 greater than 10%, the shaded area S1 of the window glass 100 can have high haze. The shaded area S1 of the window glass 100 has a good shading effect.

[0087] Please see Figure 4 This application provides a second embodiment of a vehicle window glass 100. The difference between this embodiment and the first embodiment described above is that the vehicle window glass 100 further includes a haze layer. The haze layer has high haze, thus achieving high haze in the shaded area S1.

[0088] In this embodiment, the haze layer is a dimming film 40. The haze of the dimming film 40 can be greater than or equal to 10%. The types of dimming films 40 include, but are not limited to, polymer-dispersed liquid crystal (PDLC), polymer network liquid crystal (PNLC), guest / host liquid crystal (GHLC), and electrochromic (EC). The haze of the dimming film 40 has a minimum and a maximum value. By adjusting the voltage applied to the dimming film 40, the haze of the dimming film 40 can be changed. When the dimming film 40 is powered on, its haze increases from a minimum value; as the voltage increases, the haze of the dimming film 40 increases; when the voltage increases to a critical value, the haze of the dimming film 40 reaches a maximum value; when the dimming film 40 is powered off, its haze decreases to a minimum value; or, when the dimming film 40 is powered on, its haze decreases from a maximum value; as the voltage increases, the haze of the dimming film 40 decreases; when the voltage increases to a critical value, the haze of the dimming film 40 reaches a minimum value; when the dimming film 40 is powered off, its haze increases to a maximum value.

[0089] It should be noted that the number of dimming films 40 can be one or more. This embodiment of the application is only described with one dimming film 40.

[0090] In this embodiment, the intermediate layer 13 has a multi-layer structure. The intermediate layer 13 includes multiple adhesive layers 133 stacked sequentially. The thickness, material, and structure of the adhesive layers 133 can be referred to the relevant description of the adhesive layer 133 in the first embodiment above. Further details will not be elaborated here.

[0091] In this embodiment, multiple adhesive layers 133 are sequentially stacked along the thickness direction (Z-axis direction) of the window glass 100. Specifically, the first portions of the multiple adhesive layers 133 overlap to form the first portion 13a of the intermediate layer 13, and the second portions overlap to form the second portion 13b of the intermediate layer 13. A dimming film 40 is sandwiched between any two adhesive layers 133 along the thickness direction of the window glass 100. The dimming film 40 completely covers the shaded area S1. It can be understood that the dimming film 40 may also cover at least part of the non-shaded area S2.

[0092] It should be noted that, Figure 4 The number of adhesive layers 133 and the clamping position of the dimming film 40 shown are only for illustrating the structure of multiple adhesive layers 133 and dimming film 40. The number of adhesive layers 133 can also be other, and the dimming film 40 can also be clamped between any two other adhesive layers 133. This does not impose any limitation on the number of adhesive layers 133 and the clamping position of the dimming film 40. Figure 4 The illustration only takes the example of the dimming film 40 completely covering the shaded area S1 and the unshaded area S2, which does not constitute a specific limitation on the coverage range of the dimming film 40. Figure 4 The dashed lines are only used to divide the first and second parts of the adhesive layer 133 into regions, and do not constitute a limitation on the specific structure of the laminated glass 10.

[0093] It is understood that in this embodiment, by sandwiching a dimming film 40 between any two adhesive layers 133 of the intermediate layer 13 and ensuring that the dimming film 40 completely covers the shielding area S1, the haze of the dimming film 40 can be adjusted by adjusting the voltage applied to the dimming film 40, making the haze of the dimming film 40 greater than or equal to 10%. This allows the shielding area S1 of the vehicle window glass 100 to have high haze, meaning the haze HS1 of the shielding area S1 is greater than or equal to 10%. Therefore, it is unnecessary to print ceramic ink on the shielding area S1 of the vehicle window glass 100 to create a shielding effect, thus avoiding the application of stress to the edge of the vehicle window glass 100 during the curing process of the ceramic ink, ensuring the structural strength of the vehicle window glass 100; and preventing the edge of the vehicle window glass 100 from easily breaking under external impact, thereby ensuring the safety performance of the vehicle window glass 100.

[0094] In addition, the dimming film 40 covers at least part of the unshaded area S2. By adjusting the haze of the dimming film 40, the haze of the unshaded area S2 of the window glass 100 can also be adjusted so that the window glass 100 can be used for different application scenarios.

[0095] The dimming film 40 is sandwiched between two adhesive layers 133 after the first glass plate 11 and the second glass plate 12 have undergone a bending and forming process. Therefore, the dimming film 40 does not need to undergo high-temperature heat treatment, and the optical performance of the dimming film 40 is more stable.

[0096] It should be noted that in this application, the high haze of the shielded area S1 of the vehicle window glass 100 can be achieved by simultaneously having high haze in a localized area of ​​the laminated glass 10 and by setting a haze layer; or the high haze of a localized area of ​​the laminated glass 10 can be achieved by setting a haze layer alone.

[0097] It is understandable that by further increasing the haze of the dimming film 40 to 10% on the basis that the haze of the first part 13a of the intermediate layer 13 is greater than or equal to 10%, the haze of the shielding area S1 of the window glass 100 is further increased, thereby improving the shielding effect of the shielding area S1 of the window glass 100.

[0098] Please see Figure 5This application provides a third embodiment of a vehicle window glass 100. The difference between this embodiment and the first embodiment described above is that the vehicle window glass 100 further includes a haze layer. The haze layer provides high haze, thus achieving high haze in the shaded area S1.

[0099] In this embodiment, the haze layer is the functional layer 50. The haze of the functional layer 50 is constant. The haze of the functional layer 50 is greater than or equal to 10%. The functional layer 50 can be a film layer with functions such as heat insulation and low radiation, or it can be a film layer without such functions. For example, the functional layer 50 is a film layer with heat insulation or low radiation functions, and the functional layer 50 achieves a haze of greater than or equal to 10%, as well as heat insulation or low radiation effects, through the film system structure.

[0100] The functional layer 50 can be deposited by chemical vapor deposition (CVD) or physical vapor deposition (PVD).

[0101] In this embodiment, at least one of the first surface 111, the second surface 112, the third surface 121, or the fourth surface 122 of the laminated glass 10 is provided with a functional layer 50. The functional layer 50 completely covers the shielded area S1. It can be understood that the functional layer 50 may also cover at least part of the unshielded area S2.

[0102] It should be noted that, Figure 5 The illustration only takes the fourth surface 122 of the laminated glass 10 as an example, in which a functional layer 50 is provided and the functional layer 50 completely covers the shielded area S1 and the unshielded area S2. This does not constitute a specific limitation on the setting position or coverage range of the functional layer 50. Figure 5 The dashed lines are only used to divide the first part 13a and the second part 13b of the intermediate layer 13, and do not constitute a limitation on the specific structure of the laminated glass 10.

[0103] It is understood that in this embodiment, by setting a functional layer 50 that completely covers the shielding area S1, and by having a haze of 10% or greater than or equal to 10%, the shielding area S1 of the vehicle window glass 100 can have high haze, that is, the haze HS1 of the shielding area S1 is greater than or equal to 10%. Therefore, it is not necessary to print ceramic ink on the shielding area S1 of the vehicle window glass 100 to form a shielding effect, thereby avoiding the application of stress to the edge of the vehicle window glass 100 during the curing process of the ceramic ink, ensuring the structural strength of the vehicle window glass 100; and preventing the edge of the vehicle window glass 100 from easily breaking when subjected to external impact, thus ensuring the safety performance of the vehicle window glass 100.

[0104] Furthermore, the functional layer 50 can simultaneously provide heat insulation or low radiation effects, achieving both high haze in the shaded area S1 of the window glass 100 and heat insulation or low radiation effects in the shaded area S1. In particular, when the functional layer 50 covers at least part of the unshaded area S2, it can also achieve heat insulation or low radiation effects in the unshaded area S2.

[0105] The functional layer 50 is relatively thin. Even if the functional layer 50 is attached to the first glass plate 11 or the second glass plate 12 and is processed by bending and forming process along with the glass plate, the functional layer 50 is not enough to apply stress to the edge position of the glass plate, thereby reducing the structural strength of the edge position of the glass plate.

[0106] It should be noted that in this application, the high haze of the shielding area S1 of the vehicle window glass 100 can be achieved by simultaneously having high haze in a localized area of ​​the laminated glass 10 and a haze layer; or the high haze can be achieved by having high haze in a localized area of ​​the laminated glass 10 alone, or by using a haze layer alone.

[0107] It is understandable that by further increasing the haze of the functional layer 50 to 10% on the basis that the haze of the first part 13a of the intermediate layer 13 is greater than or equal to 10%, the haze of the shielding area S1 of the window glass 100 is further increased, thereby improving the shielding effect of the shielding area S1 of the window glass 100.

[0108] The embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A type of vehicle window glass, characterized in that, The vehicle window glass includes a first glass plate, a second glass plate, and an intermediate layer. Along the thickness direction of the vehicle window glass, the intermediate layer is sandwiched between the first glass plate and the second glass plate. The vehicle window glass includes a shielded area and an unshielded area. The shielded area surrounds the unshielded area, and the edge of the shielded area is connected to the edge of the unshielded area. The intermediate layer includes a first part and a second part, the first part surrounds the second part, the first part is connected to the edge of the second part, and the haze of the first part is greater than or equal to 10%. Along the thickness direction of the window glass, the first part completely overlaps with the shaded area, and the second part completely overlaps with the unshaded area.

2. The vehicle window glass according to claim 1, characterized in that, The fog level in the first part is greater than that in the second part.

3. The vehicle window glass according to claim 1, characterized in that, The intermediate layer includes multiple adhesive layers, each adhesive layer including a first part and a second part, the first part surrounding the second part, the first part being connected to the edge of the second part, and the haze of the first part of at least one adhesive layer being greater than or equal to 10%. Along the thickness direction of the vehicle window glass, a plurality of adhesive layers are stacked sequentially, the first parts of the plurality of adhesive layers completely overlap, and the first parts of the plurality of adhesive layers together form the first part, the second parts of the plurality of adhesive layers completely overlap, and the second parts of the plurality of adhesive layers together form the second part.

4. The vehicle window glass according to claim 3, characterized in that, The first part, with a haze greater than or equal to 10%, includes a matrix and colorant particles. The colorant particles are uniformly distributed in the matrix, which is PVB, EVA, PU, ​​PC, PMMA, or SGP. The colorant particles are CaCO3, CaSO4, MgSO4, MgO, ZnSO4, or ZnO.

5. The vehicle window glass according to claim 1, characterized in that, The vehicle window glass also includes a haze layer that completely covers the shielding area along the thickness direction of the vehicle window glass.

6. The vehicle window glass according to claim 5, characterized in that, The intermediate layer includes multiple adhesive layers, each adhesive layer including a first part and a second part, the first part surrounding the second part, the edges of the first part and the second part being connected, the multiple adhesive layers being stacked sequentially along the thickness direction of the window glass, the first parts of the multiple adhesive layers completely overlapping, and the first parts of the multiple adhesive layers together forming the first part, the second parts of the multiple adhesive layers completely overlapping, and the second parts of the multiple adhesive layers together forming the second part; The haze layer is a dimming film, which is sandwiched between any two adhesive layers along the thickness direction of the window glass.

7. The vehicle window glass according to claim 5, characterized in that, The first glass plate includes a first surface and a second surface disposed opposite to the first surface, the second surface facing the intermediate layer; the second glass plate also includes a third surface and a fourth surface disposed opposite to the third surface, the third surface facing the intermediate layer. The haze layer is a functional layer, and at least one of the first surface, the second surface, the third surface, or the fourth surface is provided with the functional layer.

8. The vehicle window glass according to any one of claims 1-7, characterized in that, The shielded area has a fog level HS1, wherein HS1 ≥ 50%, or HS1 ≥ 80%, or HS1 ≥ 90%.

9. The vehicle window glass according to claim 8, characterized in that, The unshaded area has a fog level HS2, wherein HS2 ≤ 10%, HS2 ≤ 5%, or HS2 ≤ 2%.

10. The vehicle window glass according to claim 9, characterized in that, The ratio of HS1 to HS2 is in the range of 4 ≤ HS1 / HS2 ≤ 48.

11. The vehicle window glass according to any one of claims 1-7, characterized in that, The shielded area has a visible light transmittance TL1, wherein TL1 ≤ 80%, TL1 ≤ 10%, TL1 ≤ 5%, or TL1 ≤ 1%.

12. The vehicle window glass according to claim 11, characterized in that, The unshaded area has a visible light transmittance TL2, wherein TL2 > 70%, or TL2 ≤ 70%, or TL2 ≤ 30%, or TL2 ≤ 10%.

13. The vehicle window glass according to any one of claims 1-7, characterized in that, The shielded area has an ultraviolet transmittance T1 UV T1 UV ≤1%, or T1 UV ≤0.1%; The unshaded area has an ultraviolet transmittance T2 UV T2 UV ≤1%, or T2 UV ≤0.1%.

14. A vehicle, characterized in that, The vehicle includes a vehicle body, an interior trim, and a window glass as described in any one of claims 1-13, wherein the window glass is connected to the vehicle body, and the interior trim is located inside the vehicle body; Along the thickness direction of the window glass, the interior trim's orthographic projection onto the window glass is at least partially located within the shaded area.

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