Vehicle window glass and vehicle

Abstract

The invention provides vehicle window glass and a vehicle. Wherein the vehicle window glass comprises a first glass plate, a second glass plate and a middle layer, the middle layer is clamped between the first glass plate and the second glass plate in the thickness direction of the vehicle window glass, the vehicle window glass comprises a shielding area and a non-shielding area, the shielding area surrounds the non-shielding area, and the shielding area is connected with the edge of the non-shielding area; the first glass plate comprises a first part and a second part, the first part surrounds the second part, the first part is connected with the edge of the second part, and the haze of the first part is greater than that of the second part; in the thickness direction of the window glass, the first part completely coincides with the shielding area, and the second part completely coincides with the non-shielding area. Ceramic ink does not need to be printed on the shielding area of the vehicle window glass to form the shielding effect, and the structural strength of the vehicle window glass can be guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of glass products, in particular to vehicle window glass and vehicles. Background Art

[0002] At present, ceramic ink is usually printed on the edge of the car glass to form a shielding layer, which has two main functions: 1. The black edge formed by the ceramic ink can cover the sealing strip at the edge of the car glass, blocking the direct sunlight on the sealing strip, so as to prevent the sealing strip from being frequently damaged by direct ultraviolet rays from the sun and causing aging; 2. To ensure the overall beauty of external observation, it can cover the traces of the sealing strip and various accessories on the inner surface of the car glass.

[0003] In the prior art, automotive glass needs to undergo high-temperature heat treatment and be bent into shape during the production process. Since the ceramic ink is located on the surface of the glass and the thermal conductivity of the ceramic ink is greater than that of the glass, during the cooling process, the ceramic ink usually reaches room temperature before the glass. When the ceramic ink reaches room temperature and solidifies, the glass in contact with the ceramic ink is still higher than room temperature. As the glass continues to cool and form, the solidified ceramic ink will exert stress on the edge of the glass, causing stress concentration at the edge of the formed glass, and reducing the structural strength of the edge of the glass. The edge of the glass is prone to breakage when impacted by external forces. Summary of the invention

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

[0005] A first aspect of the present application provides a vehicle window glass, comprising a first glass plate, a second glass plate and an intermediate layer, wherein the intermediate layer is sandwiched between the first glass plate and the second glass plate along the thickness direction of the vehicle window glass, the vehicle window glass comprises a shielding area and a non-shielding area, the shielding area surrounds the non-shielding area, and the shielding area is connected to an edge of the non-shielding area;

[0006] The first glass plate includes a first portion and a second portion, the first portion surrounds the second portion, the first portion is connected to an edge of the second portion, and the haze of the first portion is greater than or equal to 10%;

[0007] Along the thickness direction of the vehicle window glass, the first portion completely overlaps with the shielding area, and the second portion completely overlaps with the non-shielding area.

[0008] It can be understood that by making the haze of the first part of the first glass plate greater than or equal to 10%, the first part of the first glass plate completely overlaps with the shielding area, and the second part of the first glass plate completely overlaps with the non-shielding area, the shielding area of ​​the vehicle window glass can have a high haze, that is, the haze of the shielding area is greater than or equal to 10%, thereby achieving the shielding effect of the shielding area of ​​the vehicle window glass. Therefore, it is not necessary to print ceramic ink on the shielding area of ​​the vehicle window glass to form a shielding effect, thereby avoiding the ceramic ink from applying stress to the edge of the vehicle window glass during the curing process, ensuring the structural strength of the vehicle window glass; avoiding the edge of the vehicle window glass from being easily broken when impacted by external force, thereby ensuring the safety performance of the vehicle window glass.

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

[0010] In a possible implementation manner, the first portion of the first glass plate is frosted glass, and the surface of the first portion of the first glass plate is processed by a process such as frosting, sandblasting, film forming, or acid etching.

[0011] In a possible implementation manner, the second glass plate includes a third portion and a fourth portion, the third portion surrounds the fourth portion, the third portion is connected to an edge of the fourth portion, and the haze of the third portion is greater than or equal to 10%;

[0012] Along the thickness direction of the vehicle window glass, the third portion completely overlaps with the shielding area, and the fourth portion completely overlaps with the non-shielding area.

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

[0014] In a possible implementation manner, the intermediate layer includes a plurality of adhesive layers, and the plurality of adhesive layers are stacked in sequence along the thickness direction of the vehicle window glass;

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

[0016] In a possible implementation manner, the intermediate layer includes a plurality of adhesive layers, and the plurality of adhesive layers are stacked in sequence along the thickness direction of the vehicle window glass;

[0017] The haze layer is a dimming film, and along the thickness direction of the window glass, the dimming film is sandwiched between any two of the adhesive layers.

[0018] In a possible implementation manner, the first glass plate includes a first surface and a second surface disposed opposite to the first surface, the second surface faces the intermediate layer, and the second glass plate includes a third surface and a fourth surface disposed opposite to the third surface, the third surface faces the intermediate layer;

[0019] 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.

[0020] In a possible implementation manner, the shielding area has a haze HS1, and the HS1 is ≥50%, or the HS1 is ≥80, or the HS1 is ≥90%.

[0021] In a possible implementation manner, the non-shielded area has a haze HS2, and the HS2 is ≤10%, or the HS2 is ≤5%, or the HS2 is ≤2%.

[0022] In a possible implementation manner, the ratio of the HS1 to the HS2 is in the range of 4≤HS1 / HS2≤48.

[0023] In a possible implementation manner, the shielding area has a visible light transmittance TL1, and the TL1 is ≤80%, the TL1 is ≤10%, or the TL1 is ≤5%, or the TL1 is ≤1%.

[0024] In a possible implementation manner, the non-shielded area has a visible light transmittance TL2, wherein TL2>70%, or TL2≤70%, or TL2≤30%, or TL2≤10%.

[0025] In a possible implementation manner, the shielding area has an ultraviolet transmittance T1 UV , T1 UV ≤1%, or T1 UV ≤0.1%;

[0026] The non-shielded area S2 has a UV transmittance T2 UV , T2 UV ≤1%, or T2 UV ≤0.1%.

[0027] A second aspect of the present application provides a vehicle, comprising a vehicle body, an interior decoration, and the vehicle window glass as described above, wherein the vehicle window glass is connected to the vehicle body, and the interior decoration is located inside the vehicle body;

[0028] Along the thickness direction of the vehicle window glass, the orthographic projection of the interior decoration on the vehicle window glass is at least partially located in the shielding area.

[0029] The beneficial effect of the present application is that by making the haze of the first part of the first glass plate greater than or equal to 10%, the shielding area of ​​the vehicle window glass can achieve high haze, thereby shielding the interior decoration inside the vehicle window glass. On this basis, a haze layer is further provided in the shielding area of ​​the vehicle window glass, further improving the haze of the shielding area of ​​the vehicle window glass. The present application does not need to print ceramic ink in the shielding area of ​​the vehicle window glass to form a shielding effect, thereby avoiding the ceramic ink from applying stress to the edge of the vehicle window glass during the curing process, thereby ensuring the structural strength of the vehicle window glass; avoiding the edge of the vehicle window glass from being easily broken when impacted by external force, thereby ensuring the safety performance of the vehicle window glass. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 A schematic diagram of the structure of a vehicle provided in an embodiment of the present application;

[0031] Figure 2 for Figure 1 A schematic diagram of the plane structure of the vehicle window glass perpendicular to the thickness direction;

[0032] Figure 3 for Figure 1 A schematic diagram of the layer structure of a first embodiment of a vehicle window glass is shown;

[0033] Figure 4 for Figure 1 A schematic diagram of the layer structure of a second embodiment of a vehicle window glass is shown;

[0034] Figure 5 for Figure 1 A schematic diagram of the layer structure of a third embodiment of a vehicle window glass is shown.

[0035] Description of reference numerals:

[0036] 1000-vehicle, 200-vehicle body, 100-window glass, 10-laminated glass, 11-first glass plate, 12-second glass plate, 111-first surface, 112-second surface, 121-third surface, 122-fourth surface, 13-intermediate layer, 133-adhesive layer, 11a-first part, 11b-second part, 12a-third part, 12b-fourth part, S1-shielded area, S2-non-shielded area, 20-thermal insulation layer, 30-low-emissivity layer, 40-dimming film, 50-functional layer. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0038] At present, most car window glass is laminated glass. Ceramic ink is usually screen-printed on the edge of the laminated glass to form a shielding effect on the edge of the laminated glass. The screen printing mold is mostly flat, so it is necessary to screen-print the edge of the single glass plate when the single glass plate is in a flat state to form a ceramic ink layer on the edge of the single glass plate. Subsequently, the single glass plate is subjected to high-temperature heat treatment to bend the single glass plate into shape. After that, the bent single glass plates are bonded and connected by a thermoplastic layer to form a laminated glass.

[0039] During the bending and forming process of a single glass plate, since the ceramic ink is located on the surface of the glass and the thermal conductivity of the ceramic ink is greater than that of the glass, the cooling rate of the ceramic ink is greater than that of the glass, and the ceramic ink usually reaches room temperature before the glass. When the ceramic ink reaches room temperature and solidifies, the glass in contact with the ceramic ink is still higher than room temperature. As the glass continues to cool and form, the solidified ceramic ink will exert stress on the edge of the single glass plate, causing stress concentration at the edge of the formed single glass plate, and reducing the structural strength of the edge of the single glass plate. The edge of the single glass plate is prone to breakage when impacted by external force. Therefore, the edge of the laminated glass assembled from single glass plates is prone to breakage when impacted by external force.

[0040] Based on this, the present 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 the present application to a vehicle 1000 can improve the safety performance of the vehicle 1000 .

[0041] It should be noted that the vehicle 1000 described in the present application may be, but is not limited to, a transportation vehicle such as a car, a train, and rail transit. The vehicle window glass 100 may be, but is not limited to, a front windshield, a side window glass, a rear windshield, and a sunroof glass of the vehicle 1000. The present application embodiment is described by taking the vehicle 1000 as a car and the vehicle window glass 100 as a front windshield as an example.

[0042] Please refer to Figure 1 and Figure 2 The vehicle 1000 includes a vehicle body 200 and a vehicle window glass 100. The vehicle window glass 100 is connected to the vehicle body 200. The vehicle 1000 also includes an interior (not shown) and a body sheet metal part of the vehicle 1000.

[0043] For ease of description, define Figure 2 The width direction of the vehicle window glass 100 is the X direction, the height direction of the vehicle window glass 100 is the Y axis direction, and the thickness direction of the vehicle window glass 100 is the Z axis direction. The X axis direction, the Y axis direction, and the Z axis direction are perpendicular to each other. The directional words such as "top" and "bottom" involved in this application are oriented toward the positive direction of the Y axis as "top" and oriented toward the negative direction of the Y axis as "bottom", and similar descriptions in the following text can be understood in the same way.

[0044] The vehicle window glass 100 has a shielding area S1 and a non-shielding area S2. The shielding area S1 and the non-shielding area S2 do not overlap. The shielding area S1 surrounds the non-shielding area S2. The shielding area S1 is connected to the edge of the non-shielding area S2. The shielding area S1 is used to block visible light and ultraviolet rays outside the vehicle 1000 from entering the interior of the vehicle 1000. The non-shielding area S2 is used for light transmission indoors and outdoors, that is, the vehicle window.

[0045] The shielding area S1 has a haze HS1. The haze HS1 of the shielding area S1 is ≥10%. Further, the haze HS1 of the shielding area S1 is ≥50%, or HS1 is ≥80%, or HS1 is ≥90%. The shielding area S1 has a visible light transmittance TL1. TL1≤80%. Further, TL1≤10%, or TL1≤5%, or TL1≤1%. The shielding area S1 has an ultraviolet transmittance T1 UV , T1 UV ≤1%. Furthermore, T1 UV ≤0.1%.

[0046] The non-shielded area S2 has a haze HS2. It is understandable that the haze HS1 of the shielded area S1 may be equal to the haze HS2 of the non-shielded area S2. In some embodiments, the haze HS2 of the non-shielded area S2 is ≤10%. Further, the haze HS2 of the non-shielded area S2 is ≤5%, or HS2 ≤2%. The non-shielded area S2 has a visible light transmittance TL2. TL2>70%, or TL2≤70%, or TL2≤30%, or TL2≤10%. It is understandable that when TL2>70%, the vehicle window glass 100 is suitable for the windshield; when TL2≤70%, the vehicle window glass 100 is suitable for the rear door glass, rear windshield or sunroof of the vehicle 1000. The non-shielded area S2 has an ultraviolet transmittance T2 UV , T2 UV ≤1%. Furthermore, T2 UV ≤0.1%.

[0047] Further, the ratio of the haze HS1 of the shielded area S1 to the haze HS2 of the non-shielded area S2 is in the range of 4≤HS1 / HS2≤48. For example, the ratio of the haze HS1 of the shielded area S1 to the haze HS2 of the non-shielded area S2 is 4, or 8, or 16, or 20, or 24, or 28, or 32, or 36, or 40, or 44, or 48, etc.

[0048] In this embodiment, along the thickness direction (Z-axis direction) of the vehicle window glass 100, the orthographic projections of the interior decoration (not shown) and the body sheet metal parts of the vehicle 1000 on the vehicle window glass 100 are at least partially located in the shielding area S1. The shielding area S1 can shield the connection between the vehicle window glass 100 and the vehicle 1000, so that the observer cannot clearly see the connection structure between the vehicle window glass 100 and the vehicle 1000 from the outside of the vehicle, thereby achieving an aesthetic effect.

[0049] See also Figure 3 The present application provides a first embodiment of a vehicle window glass 100. In this embodiment, the vehicle window glass 100 includes a laminated glass 10. The high haze of the shielding area S1 is achieved by partially having high haze of the laminated glass 10.

[0050] The laminated glass 10 includes a first glass plate 11, a second glass plate 12 and an intermediate layer 13, wherein the intermediate layer 13 is 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 disposed opposite to 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 disposed opposite to 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 can be understood that the first glass plate 11 can be closer to the outside of the vehicle 1000 relative to the second glass plate 12, and the first glass plate 11 can also be closer to the inside of the vehicle 1000 relative to the second glass plate 12. The embodiment of the present application is only described by taking the example that the first glass plate 11 can be closer to the outside of the vehicle 1000 relative to the second glass plate 12.

[0051] 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). In addition, when the laminated glass 10 has a specific structure, it can also be: when the laminated glass 10 further includes an outer glass plate and an additional intermediate layer 13, along the thickness direction of the laminated glass 10, the outer glass plate is bonded to the first surface 111 of the first glass plate 11 through the additional intermediate layer 13, at this time, the first glass plate 11 and the second glass plate 12 are both 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, along the thickness direction of the laminated glass 10, the inner glass plate is bonded to the fourth surface 122 of the second glass plate 12 through the additional intermediate layer 13, at this time, the first glass plate 11 is the outer glass plate (glass plate located outside the vehicle 1000), and the second glass plate 12 is the inner glass plate (glass plate located inside the vehicle 1000). The embodiment of the present application is described by taking the first glass plate 11 of the laminated glass 10 as the outer glass plate and the second glass plate 12 as the inner glass plate as an example.

[0052] Wherein, the outer glass plate is transparent glass or tinted glass. The thickness of the outer glass plate is 1.6 mm to 6.0 mm (including endpoint values). For example, the thickness of the outer glass plate can be but not limited to 1.6 mm, 3.2 mm, 4.8 mm, 6.0 mm, etc. The visible light transmittance of the outer glass plate is 1% to 99% (including endpoint values). For example, the visible light transmittance of the outer glass plate can be but not limited to 1%, 2%, 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, 99%, etc. The outer glass plate can be inorganic glass or organic glass. The material of the outer glass plate can be but not limited to soda-lime glass, borosilicate glass, aluminosilicate glass, polymethacrylate, polycarbonate, etc. Further, the material of the outer glass plate is soda-lime glass.

[0053] The inner glass plate is transparent glass or tinted glass. The thickness of the inner glass plate is 0.7 mm to 6.0 mm (including the endpoint values). For example, the thickness of the inner glass plate can be, but 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 plate is 1% to 99% (including the endpoint values). For example, the visible light transmittance of the inner glass plate can be, but not limited to, 1%, 2%, 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, or 99%. The inner glass plate can be inorganic glass or organic glass. The material of the inner glass plate can be, but not limited to, soda-lime glass, borosilicate glass, aluminosilicate glass, polymethacrylate, polycarbonate, etc. Furthermore, the inner glass plate is made of soda-lime glass.

[0054] 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 (including the end value). For example, the thickness of the adhesive layer 133 can be but is not limited to 0.38 mm, or 0.76 mm, or 1.14 mm, or 1.52 mm, etc. Further, the thickness of the adhesive layer 133 is 0.76 mm. Further, the thickness of the adhesive layer 133 is 0.80 mm. The material of the thermoplastic polymer film can be selected from at least one of polyvinyl butyral (PVB), polyurethane (PU), ethylene-vinyl acetate copolymer (EVA), polycarbonate (PC), polymethyl methacrylate (PMMA) and ionomer (SentryGlasPlus, SGP). The adhesive layer 133 has a UV 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%, 0.2%, etc. Further, T0 UV ≤0.1%.

[0055] In this embodiment, the first glass plate 11 includes a first part 11a and a second part 11b. The first part 11a is arranged around the circumference of the second part 11b. The first part 11a is located outside the second part 11b, and the second part 11b is located inside the first part 11a. The first part 11a is arranged around the periphery of the second part 11b, and the first part 11a completely surrounds the second part 11b. The shape of the first part 11a matches the shape of the laminated glass 10. The first part 11a is in the shape of an annular frame, and the first part 11a surrounds the circumferential side of the second part 11b. Among them, the first part 11a and the second part 11b of the first glass plate 11 are only used to divide the entire first glass plate 11, and it is not mandatory to limit that the first part 11a and the second part 11b need to be two relatively independent individuals, that is, the first part 11a and the second part 11b can be an integrally formed structure, or a structure formed by splicing in other ways, and this application does not limit this.

[0056] In this embodiment, the second glass plate 12 includes a third part 12a and a fourth part 12b. The third part 12a is arranged around the circumference of the fourth part 12b. The third part 12a is located outside the fourth part 12b, and the fourth part 12b is located inside the third part 12a. The third part 12a is arranged around the periphery of the fourth part 12b, and the third part 12a completely surrounds the fourth part 12b. The shape of the third part 12a matches the shape of the laminated glass 10. The third part 12a is in the shape of an annular frame, and the third part 12a surrounds the peripheral side of the fourth part 12b. Among them, the third part 12a and the fourth part 12b of the second glass plate 12 are only used to divide the entire second glass plate 12, and it is not mandatory to limit that the third part 12a and the fourth part 12b need to be two relatively independent individuals, that is, the third part 12a and the fourth part 12b can be an integrally formed structure, or a structure formed by splicing in other ways, and this application does not limit this.

[0057] Please continue reading Figure 3 In this embodiment, the first glass plate 11 and the second glass plate 12 are bonded and connected by an intermediate layer 13. Along the thickness direction (Z-axis direction) of the vehicle window glass 100, the first portion 11a of the first glass plate 11 completely overlaps with the third portion 12a of the second glass plate 12; the second portion 11b of the first glass plate 11 completely overlaps with the fourth portion 12b of the second glass plate 12. Along the thickness direction (Z-axis direction) of the vehicle window glass 100, the shielding area S1 completely overlaps with the first portion 11a of the first glass plate 11; the non-shielding area S2 completely overlaps with the second portion 11b of the first glass plate 11. By making the local part of the laminated glass 10 have a high haze, the shielding area S1 of the vehicle window glass 100 has a high haze. The haze of the first portion 11a of the first glass plate 11 is greater than or equal to 10%.

[0058] It should be noted that Figure 3 The dotted lines in FIG. 1 are only used to divide the first portion 11 a and the second portion 11 b of the first glass plate 11 and the third portion 12 a and the fourth portion 12 b of the second glass plate 12 , and do not limit the specific structure of the laminated glass 10 .

[0059] It can be understood that when the haze HS1 of the shielding area S1 is greater than the haze HS2 of the non-shielding area S2, the haze of the first portion 11a of the first glass plate 11 may be greater than the haze of the second portion 11b. Exemplarily, the ratio of the haze H1 of the first portion 11a of the first glass plate 11 to the haze H2 of the second portion 11b is in the range of 25≤H1 / H2≤80. For example, the ratio of the haze H1 of the first portion 11a to the haze H2 of the second portion 11b is 25, 50, 75, 80, etc.

[0060] In other embodiments, the haze of the third portion 12 a of the second glass plate 12 may also be greater than or equal to 10%.

[0061] It should be noted that the first portion 11a of the first glass plate 11 may be subjected to a surface treatment so that the first portion 11a of the first glass plate 11 forms frosted glass, thereby increasing the haze of the first portion 11a of the first glass plate 11. Frosted glass is a glass product that is subjected to special treatment to make the glass surface appear hazy, frosted or milky. Surface treatment processes include acid etching, frosting, sandblasting and film forming processes. Among them, the acid etching process is to immerse the glass in an acidic solution, and the glass surface is frosted by the corrosive action of the acid. The frosting process is to use a grinding tool (such as a grinding wheel, a grinding wheel) to mechanically frost the glass surface to make the glass surface blurry. The sandblasting process is to use a high-pressure airflow to spray sand particles onto the glass surface, thereby frosting the glass surface. The film forming process is to coat a special translucent film or frosted film on the glass surface to make it appear frosted. It can be understood that to increase the haze of the third portion 12a of the second glass plate 12, the above-mentioned surface treatment of the first portion 11a of the first glass plate 11 can also be referred to.

[0062] It can be understood that by making the haze of the first part 11a of the first glass plate 11 greater than or equal to 10%, the first part 11a completely overlaps with the shielding area S1, and the second part 11b completely overlaps with the non-shielding area S2, the shielding area S1 of the vehicle window glass 100 can have a larger haze, that is, the haze HS1 of the shielding area S1 is greater than or equal to 10%, thereby achieving the shielding effect of the shielding area S1 of the vehicle window glass 100. 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 ceramic ink from applying stress to the edge position of the vehicle window glass 100 during the curing process, thereby ensuring the structural strength of the vehicle window glass 100; avoiding the edge position of the vehicle window glass 100 from being easily broken when impacted by external force, thereby ensuring the safety performance of the vehicle window glass 100.

[0063] It should be noted that in the present application, the haze of the first part 11a of the first glass plate 11 is greater than or equal to 10%, so that the shielding area S1 of the vehicle window glass 100 has a high haze, and then the shielding effect of the shielding area S1 is achieved, thereby replacing the scheme of setting ceramic ink in the shielding area S1, and ensuring the structural strength of the vehicle window glass 100. The shielding area S1 may not be provided with an ink layer, or may be provided with an ink layer. The proportion of the ink layer in the shielding area S1 to the range of the shielding area S1 is less than or equal to 10%. Exemplarily, an ink layer may be provided in the shielding area S1 to mark the vehicle window glass 100.

[0064] Please continue reading Figure 3 In this embodiment, the vehicle window glass 100 may further include a heat insulating layer 20 and a low emissivity layer 30. The heat insulating layer 20 is used to adjust the heat insulating 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 insulating 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 insulating layer 20 and the low emissivity layer 30 are respectively disposed on different surfaces of the laminated glass 10. For example, Figure 3 The heat insulating layer 20 is laminated on the second surface 112 of the first glass plate 11. The low-emissivity layer 30 is laminated on the fourth surface 122 of the second glass plate 12. Along the thickness direction (Z-axis direction) of the vehicle window glass 100, the heat insulating layer 20 completely covers the non-shielded area S2. Along the thickness direction (Z-axis direction) of the vehicle window glass 100, the low-emissivity layer 30 completely covers the non-shielded area S2.

[0065] In other embodiments, the vehicle window glass 100 may not be provided with the heat insulation layer 20 or the low-emissivity layer 30 .

[0066] The thermal insulation layer 20 includes a functional metal layer and a plurality of dielectric layers. Along the thickness direction of the thermal insulation layer 20, dielectric layers are stacked on opposite sides of the functional metal layer. The number of the functional metal layers can be one or more. Both the functional metal layer and the dielectric layer can be deposited by chemical vapor deposition (CVD) or physical vapor deposition (PVD). Exemplarily, both the functional metal layer and the dielectric layer are deposited by magnetron sputtering.

[0067] The functional metal layer may be a metal layer or an alloy layer. Exemplarily, the material of the functional metal layer may be a metal or metal alloy selected from at least one element of Ag, Au, Cu, Al, and Pt. The material of the dielectric layer may be at least one of nitrides, oxides, and oxynitrides of metals such as Zn, Sn, Ti, Si, Al, Ni, Cr, Nb, Mg, Zr, Ga, Y, In, Sb, V, and Ta and alloys thereof.

[0068] The emissivity E of the low-emissivity layer 30 is less than or equal to 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). Exemplarily, the dielectric layer is deposited by magnetron sputtering.

[0069] The material of the dielectric layer can be at least one selected from nitrides, oxides, and oxynitrides of metals such as Zn, Sn, Ti, Si, Al, Ni, Cr, Nb, Mg, Zr, Ga, Y, In, Sb, V, Ta, and their alloys.

[0070] The following describes specific examples of vehicle window glasses 100 with different structures.

[0071] Example 1:

[0072] The first glass plate 11 and the second glass plate 12 are both green glass with a thickness of 2.1 mm. The surface of the first portion 11a of the first glass plate 11 is frosted. The haze of the first portion 11a of the first glass plate 11 is greater than 10%. The haze of the third portion 12a of the second glass plate 12 is equal to the haze of the fourth portion 12b. The intermediate layer 13 is a single-layer structure. The haze of the intermediate layer 13 is uniform. The visible light transmittance of the intermediate layer 13 is 90%.

[0073] Example 2:

[0074] The vehicle window glass 100 of Example 2 is different from the vehicle window glass 100 of Example 1 in that the first glass plate 11 and the second glass plate 12 are both dark-colored glass with a thickness of 2.1 mm.

[0075] Example 3:

[0076] The vehicle window glass 100 of Example 3 is different from the vehicle window glass 100 of Example 1 in that the first glass plate 11 and the second glass plate 12 are both transparent glass with a thickness of 2.1 mm. A heat insulation layer 20 is disposed on the second surface 112 of the first glass plate 11 .

[0077] Example 4:

[0078] The vehicle window glass 100 of Example 4 is different from the vehicle window glass 100 of Example 3 in that a low-emissivity layer 30 is disposed on the fourth surface 122 of the second glass plate 12. The visible light transmittance of the intermediate layer 13 is 8%.

[0079] Example 5:

[0080] The vehicle window glass 100 of Example 5 is different from the vehicle window glass 100 of Example 4 in that the visible light transmittance of the intermediate layer 13 is 6%.

[0081] Example 6:

[0082] The vehicle window glass 100 of Example 6 is different from the vehicle window glass 100 of Example 5 in that the visible light transmittance of the intermediate layer 13 is 2%.

[0083] In this embodiment, the haze of the intermediate layer 13 was measured using a spectrophotometer (company: PERKINELMER, model: LAMBDA950) in accordance with standard JIS R3212. The haze of the first glass plate 11 and the second glass plate 12 was measured using a spectrophotometer (company: PERKINELMER, model: LAMBDA950) in accordance with standard GB / T2410. The haze and visible light transmittance of the shielded area S1 of the vehicle window glass 100 and the haze and visible light transmittance of the non-shielded area S2 were measured using a spectrophotometer (company: PERKINELMER, model: LAMBDA950) in accordance with standard GB / T2410.

[0084] Table 1: Parameters of the shielding area S1 and the non-shielding area S2 of the vehicle window glass 100 of Examples 1-6

[0085] Example HS1 HS2 TL1 TL2 Example 1 80.2％ 1.5％ 4.8％ 78.5％ Example 2 91.3％ 1.8％ 3.5％ 16.5％ Example 3 65.2％ 2.0％ 5.5％ 77.2％ Example 4 70.0％ 5.3％ 4.6％ 7.3％ Example 5 71.2％ 5.5％ 2.5％ 4.5％ Example 6 72.3％ 5.5％ 0.5％ 1.6％

[0086] As can be seen from Table 1, the haze HS1 of the shielding area S1 of the vehicle window glass 100 of Examples 1-6 is greater than 65%. The visible light transmittance TL1 of the shielding area S1 is less than 6%, so the shielding area S1 of the vehicle window glass 100 of Examples 1-6 can play a good role in blocking the transmission of visible light. Among them, the haze HS2 of the non-shielding area S2 of the vehicle window glass 100 of Examples 1 and 3 is less than 2%. The visible light transmittance TL2 of the non-shielding area S2 is greater than 77%, so the non-shielding area S2 of the vehicle window glass 100 of Examples 1 and 3 can be used as a window, and the vehicle window glass 100 of Examples 1 and 3 is suitable for the front windshield of the vehicle 1000. The haze HS2 of the non-shielding area S2 of the vehicle window glass 100 of Examples 2 and Examples 4 to 6 is less than 6%. The visible light transmittance TL2 of the non-shielding area S2 is less than 17%. Therefore, the non-shielding area S2 of Examples 2 and Examples 4 to 6 can play a role in blocking sight lines, and the vehicle window glass 100 of Examples 2 and Examples 4 to 6 is suitable for the rear windshield or sunroof glass of the vehicle 1000. By making the haze of the first portion 11a of the first glass plate 11 greater than 10%, the shielding area S1 of the vehicle window glass 100 can have a high haze. The shielding area S1 of the vehicle window glass 100 has a good shielding effect.

[0087] See also Figure 4 The present application provides a second embodiment of a vehicle window glass 100. The difference between this embodiment and the first embodiment is that the vehicle window glass 100 further includes a haze layer. The haze layer has a high haze, so that the high haze of the shielding area S1 is achieved.

[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 film 40 include but are not limited to polymer dispersed liquid crystal (PDLC), polymer network liquid crystal (PNLC), guest / host liquid crystal (GHLC), electrochromic (EC), etc. The haze of the dimming film 40 has a minimum value and a maximum value. The haze of the dimming film 40 can be changed by adjusting the power-on voltage of the dimming film 40. When the dimming film 40 is powered on, the haze of the dimming film 40 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, the haze of the dimming film 40 decreases to a minimum value; or, when the dimming film 40 is powered on, the haze of the dimming film 40 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, the haze of the dimming film 40 increases to a maximum value.

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

[0090] In this embodiment, the middle layer 13 is a multi-layer structure. The middle layer 13 includes a plurality of adhesive layers 133 stacked in sequence. The thickness, material and structure of the adhesive layer 133 can refer to the relevant description of the adhesive layer 133 in the first embodiment above. No further details will be given here.

[0091] In this embodiment, multiple adhesive layers 133 are stacked in sequence along the thickness direction (Z-axis direction) of the vehicle window glass 100. The dimming film 40 is sandwiched between any two adhesive layers 133 along the thickness direction of the vehicle window glass 100. The dimming film 40 completely covers the shielding area S1. It can be understood that the dimming film 40 can also cover at least part of the non-shielding 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 in the figure are only used for schematic diagram of the structure of multiple adhesive layers 133 and the dimming film 40. The number of adhesive layers 133 can also be other numbers, and the dimming film 40 can also be clamped between any other two adhesive layers 133. It does not constitute a restriction on the number of adhesive layers 133 and the clamping position of the dimming film 40. Figure 4 The example in which the dimming film 40 completely covers the shielding area S1 and the non-shielding area S2 is used for illustration only, which does not constitute a specific limitation on the coverage range of the dimming film 40 .

[0093] It can be understood that in this embodiment, by sandwiching the dimming film 40 between any two adhesive layers 133 of the intermediate layer 13, and making the dimming film 40 completely cover the shielding area S1, by adjusting the voltage applied to the dimming film 40, the haze of the dimming film 40 can be adjusted to make the haze of the dimming film 40 greater than or equal to 10%, and thus the shielding area S1 of the vehicle window glass 100 can have a 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 ceramic ink from applying stress to the edge position of the vehicle window glass 100 during the curing process, ensuring the structural strength of the vehicle window glass 100; avoiding the edge position of the vehicle window glass 100 from being easily broken when impacted by external force, thereby ensuring the safety performance of the vehicle window glass 100.

[0094] In addition, the dimming film 40 covers at least a portion of the non-shielding area S2. By adjusting the haze of the dimming film 40, the haze of the non-shielding area S2 of the vehicle window glass 100 can also be adjusted, so that the vehicle window glass 100 can be suitable for different application scenarios.

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

[0096] It should be noted that in the present application, the high haze of the shielding area S1 of the vehicle window glass 100 can be achieved by both making the laminated glass 10 partially have high haze and setting a haze layer; or the laminated glass 10 can be partially made to have high haze, or a haze layer can be used alone. Figure 4 The dotted lines in FIG. 1 are only used to divide the first portion 11 a and the second portion 11 b of the first glass plate 11 and the third portion 12 a and the fourth portion 12 b of the second glass plate 12 , and do not limit the specific structure of the laminated glass 10 .

[0097] It can be understood that by continuing to make the haze of the dimming film 40 greater than or equal to 10% on the basis that the haze of the first part 11a of the first glass plate 11 is greater than or equal to 10%, the haze of the shading area S1 of the window glass 100 is further increased, thereby improving the shielding effect of the shading area S1 of the window glass 100.

[0098] See also Figure 5 The present application provides a third embodiment of a vehicle window glass 100. The difference between this embodiment and the first embodiment is that the vehicle window glass 100 further includes a haze layer. The haze layer has a high haze, so that the high haze of the shielding area S1 is achieved.

[0099] In this embodiment, the haze layer is a 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 may be a film layer with functions such as heat insulation and low radiation, or may be a film layer without functions such as heat insulation or low radiation. Exemplarily, the functional layer 50 is a film layer with heat insulation or low radiation functions, and the functional layer 50 achieves a haze greater than or equal to 10%, as well as a heat insulation effect or a low radiation effect through a film structure.

[0100] The functional layer 50 may 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 shielding area S1. It can be understood that the functional layer 50 can also cover at least part of the non-shielding area S2.

[0102] It should be noted that Figure 5 The example in which a functional layer 50 is provided on the fourth surface 122 of the laminated glass 10 and the functional layer 50 completely covers the shielding area S1 and the non-shielding area S2 is used for illustration only, and no specific limitation is imposed on the setting position and coverage range of the functional layer 50 . Figure 5 The dotted lines in FIG. 1 are only used to divide the first portion 11 a and the second portion 11 b of the first glass plate 11 and the third portion 12 a and the fourth portion 12 b of the second glass plate 12 , and do not limit the specific structure of the laminated glass 10 .

[0103] It is understandable that in this embodiment, by providing the functional layer 50, and the functional layer 50 completely covers the shielding area S1, the haze of the functional layer 50 is greater than or equal to 10%, so that the shielding area S1 of the vehicle window glass 100 can have a 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 ceramic ink from applying stress to the edge of the vehicle window glass 100 during the curing process, ensuring the structural strength of the vehicle window glass 100; avoiding the edge of the vehicle window glass 100 from being easily broken when impacted by external force, thereby ensuring the safety performance of the vehicle window glass 100.

[0104] In addition, the functional layer 50 can have both heat insulation and low radiation effects, and can achieve heat insulation or low radiation effects in the shielding area S1 while achieving high haze in the shielding area S1 of the vehicle window glass 100. In particular, when the functional layer 50 covers at least part of the non-shielding area S2, the heat insulation or low radiation effects in the non-shielding area S2 can also be achieved.

[0105] The thickness of 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 subjected to a bending forming process, the functional layer 50 is insufficient to exert stress on the edge of the glass plate, thereby reducing the structural strength of the edge of the glass plate.

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

[0107] It can be understood that by continuing to make the haze of the functional layer 50 greater than or equal to 10% on the basis that the haze of the first part 11a of the first glass plate 11 is greater than or equal to 10%, the haze of the shading area S1 of the vehicle window glass 100 is further increased, thereby improving the shielding effect of the shading area S1 of the vehicle window glass 100.

[0108] The embodiments of the present application are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core idea of ​​the present application. At the same time, for general technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A vehicle window glass, characterized in that: The vehicle window glass comprises a first glass plate, a second glass plate and an intermediate layer, wherein the intermediate layer is sandwiched between the first glass plate and the second glass plate along the thickness direction of the vehicle window glass, the vehicle window glass comprises a shielding area and a non-shielding area, the shielding area surrounds the non-shielding area, and the shielding area is connected to the edge of the non-shielding area; The first glass plate includes a first portion and a second portion, the first portion surrounds the second portion, the first portion is connected to an edge of the second portion, and the haze of the first portion is greater than or equal to 10%; Along the thickness direction of the vehicle window glass, the first portion completely overlaps with the shielding area, and the second portion completely overlaps with the non-shielding area.

2. The vehicle window glass according to claim 1, characterized in that: The haze of the first portion is greater than the haze of the second portion.

3. The vehicle window glass according to claim 1, characterized in that: The first part of the first glass plate is frosted glass, and the surface of the first part of the first glass plate is processed by a process such as frosting, sandblasting, film forming or acid etching.

4. The vehicle window glass according to claim 1, characterized in that: The second glass plate includes a third portion and a fourth portion, the third portion surrounds the fourth portion, the third portion is connected to an edge of the fourth portion, and the haze of the third portion is greater than or equal to 10%; Along the thickness direction of the vehicle window glass, the third portion completely overlaps with the shielding area, and the fourth portion completely overlaps with the non-shielding area.

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

6. The vehicle window glass according to claim 5, characterized in that: The intermediate layer includes a plurality of adhesive layers, and the plurality of adhesive layers are stacked in sequence along the thickness direction of the vehicle window glass; The haze layer is a dimming film, and along the thickness direction of the window glass, the dimming film is sandwiched between any two of the adhesive layers.

7. The vehicle window glass according to claim 5, characterized in that: The first glass plate comprises a first surface and a second surface disposed opposite to the first surface, the second surface faces the intermediate layer, the second glass plate comprises a third surface and a fourth surface disposed opposite to the third surface, the third surface faces 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 to 7, characterized in that: The shielded area has a haze HS1, wherein HS1 is ≥50%, or HS1 is ≥80, or HS1 is ≥90%.

9. The vehicle window glass according to claim 8, characterized in that: The non-shielded area has a haze HS2, wherein HS2≤10%, or HS2≤5%, or HS2≤2%.

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

11. The vehicle window glass according to any one of claims 1 to 7, characterized in that: The shielding 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 non-shielding 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 to 7, characterized in that: The shielding area has an ultraviolet transmittance T1 UV , T1 UV ≤1%, or T1 UV ≤0.1%; The non-shielded area S2 has a UV transmittance T2 UV , T2 UV ≤1%, or T2 UV ≤0.1%.

14. A vehicle, characterized in that: It comprises a vehicle body, an interior decoration and a vehicle window glass as claimed in any one of claims 1 to 13, wherein the vehicle window glass is connected to the vehicle body, and the interior decoration is located inside the vehicle body; Along the thickness direction of the vehicle window glass, the orthographic projection of the interior decoration on the vehicle window glass is at least partially located in the shielding area.

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