Laminated glass and vehicle

Abstract

A laminated glass, comprising an outer glass sheet, an inner glass sheet and at least one interlayer, wherein in the direction of thickness of the laminated glass, the outer glass sheet and the inner glass sheet are spaced apart from each other, and the at least one interlayer is arranged between the outer glass sheet and the inner glass sheet; and the laminated glass has a central region and an edge region arranged around the central region, in the edge region, a visible light transmittance TL of the laminated glass satisfies TL1≤6.5％, and a mirror index M of the surface of the outer glass sheet away from the inner glass sheet satisfies 0.5≤M≤16.5. The mirror index M＝RL1 / (RL2×TL1), wherein RL1, RL2 and TL1 represent the visible light reflectance of the outer surface of the edge region of the laminated glass, the visible light reflectance of the inner surface of the edge region of the laminated glass and the visible light transmittance of the edge region of the laminated glass, respectively. A vehicle using the laminated glass.

Description

Laminated glass and vehicle

[0001] The present application claims priority to the Chinese patent application No. 202411369374.0, filed on September 29, 2024, and entitled "Laminated glass and vehicle", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the technical field of glass, in particular to a laminated glass and vehicle. BACKGROUND

[0003] In the existing vehicle, the vehicle window glass can provide a visible area for the passenger to observe the external environment of the vehicle. The edge area of the vehicle window glass is usually provided with an ink blocking layer to block the components such as interior trim and functional elements in the edge area of the vehicle window glass. However, the ink blocking layer reduces the impact resistance of the edge of the vehicle window glass, causing the edge area of the vehicle window glass to be easily broken when subjected to external force impact, reducing the use reliability of the vehicle window glass and affecting the user experience. SUMMARY

[0004] Embodiments of the present application provide a laminated glass and vehicle, which can block the components such as interior trim and functional elements in the edge area of the laminated glass without setting an ink layer, improve the appearance aesthetics of the laminated glass, and also improve the impact resistance of the edge of the laminated glass, ensure the use reliability of the laminated glass, and improve the user experience.

[0005] In a first aspect, the present application provides a laminated glass for use in a vehicle. The laminated glass comprises an outer sheet of glass, an inner sheet of glass, and at least one intermediate layer. The outer sheet of glass and the inner sheet of glass are spaced apart along the thickness direction of the laminated glass, and the at least one intermediate layer is arranged between the outer sheet of glass and the inner sheet of glass. The laminated glass has a middle area and an edge area surrounding the middle area. In the edge area, the visible light transmittance TL1 of the laminated glass is less than or equal to 6.5%, and the specular index M of the surface of the outer sheet of glass facing away from the inner sheet of glass is greater than or equal to 0.5 and less than or equal to 16.5.

[0006] In the edge area, the visible light reflectance RL1 of the surface of the outer sheet of glass facing away from the inner sheet of glass is greater than or equal to 2% and less than or equal to 30%.

[0007] In the edge area, the visible light transmittance TL1 of the laminated glass is greater than or equal to 0.5% and less than or equal to 6.5%.

[0008] The intermediate layer comprises an intermediate portion and an edge portion surrounding the intermediate portion, the intermediate portion is located in the intermediate region, the edge portion is located in the edge region, and the visible light transmittance of the edge portion is less than or equal to the visible light transmittance of the intermediate portion.

[0009] The laminated glass further comprises at least one heat insulation film layer, and the at least one heat insulation film layer is arranged between the outer sheet glass and the intermediate layer or between the inner sheet glass and the intermediate layer.

[0010] The heat insulation film layer comprises a heat reflective film and / or a low transmittance film, and the visible light transmittance TL3 of the low transmittance film is less than or equal to 7%.

[0011] The visible light transmittance TL4 of the heat reflective film is less than or equal to 7%.

[0012] The laminated glass further comprises a low emissivity film layer, the low emissivity film layer is arranged on the side of the inner sheet glass away from the outer sheet glass, and the emissivity e of the low emissivity film layer is less than or equal to 0.3 W / m2.

[0013] The intermediate layer comprises two layers, and the two layers of the intermediate layer are arranged in a spaced manner along the thickness direction of the laminated glass; the laminated glass further comprises a functional film layer, and the functional film layer is connected between the two layers of the intermediate layer.

[0014] When the visible light transmittance TL1 of the laminated glass in the edge region is 0, the visible light transmittance TL5 of the intermediate layer is 0≤TL5≤0.5%.

[0015] The ultraviolet transmittance TUV of the intermediate layer is less than or equal to 1%.

[0016] The laminated glass further comprises an adhesion enhancement layer, the adhesion enhancement layer is arranged on the side of the inner sheet glass away from the outer sheet glass and in the edge region.

[0017] In a second aspect, the application further provides a vehicle comprising a vehicle body and the laminated glass according to any one of the above, the laminated glass is mounted on the vehicle body, the side of the edge region facing the vehicle body forms a dark area, the side of the edge region away from the vehicle body forms a bright area, the dark area is observed from the bright area, and the edge region is unidirectionally invisible, wherein part of the vehicle body is located in the dark area.

[0018] The vehicle further comprises an adhesive member, the adhesive member is arranged between the inner sheet glass and the vehicle body and in the edge region.

[0019] The vehicle further comprises an interior panel located on the side of the inner sheet glass away from the outer sheet glass, at least part of the interior panel is located in the edge region, and the distance d between the edge of the projection of the interior panel on the inner sheet glass and the boundary line between the edge region and the middle region is between 0mm≤d≤15mm.

[0020] In the laminated glass provided by the embodiments of the present application, by reasonably designing the internal structure of the laminated glass, the visible light transmittance of the edge region of the laminated glass can be kept in a lower range, and under the effect of the mirror reflection of the laminated glass, the user cannot observe the bonding member, part of the vehicle body, the interior panel and / or the functional element and other components located in the edge region through the edge region of the laminated glass by using the transmission and reflection of light, so that the laminated glass can shield the bonding member, part of the vehicle body, the interior panel and / or the functional element and other components in the edge region without setting an ink shielding layer, and the appearance aesthetics of the laminated glass is improved. At the same time, since the ink shielding layer is the main factor leading to the decrease of the structural strength of the edge region of the laminated glass, the laminated glass of the present application does not set the ink shielding layer, so that the structural strength of the laminated glass is not reduced by the ink shielding layer, thereby helping to improve the impact resistance of the edge of the laminated glass, ensuring the use reliability of the laminated glass and improving the user experience. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required by the embodiments of the present application will be described below.

[0022] FIG. 1 is a structural schematic diagram of a vehicle provided by the present application;

[0023] FIG. 2 is a cross-sectional structural schematic diagram of the laminated glass of the vehicle shown in FIG. 1 in a first embodiment;

[0024] FIG. 3 is a cross-sectional structural schematic diagram of the laminated glass of the vehicle shown in FIG. 1 in a second embodiment;

[0025] FIG. 4 is a cross-sectional structural schematic diagram of the laminated glass of the vehicle shown in FIG. 1 in a third embodiment;

[0026] FIG. 5 is a cross-sectional structural schematic diagram of the laminated glass of the vehicle shown in FIG. 1 in a fourth embodiment;

[0027] FIG. 6 is a cross-sectional structural schematic diagram of the laminated glass and the bonding member of the vehicle shown in FIG. 1 in a fifth embodiment;

[0028] FIGS. 7 to 13 are structural schematic diagrams of specific structural examples of the laminated glass of the vehicle shown in FIG. 1 in different embodiments.

[0029] Corresponding names of the reference signs in the figures are as follows: vehicle 100, vehicle body 110, laminated glass 120, interior panel 130, adhesive 140, middle region 121, edge region 122, outer surface 120a, inner surface 120b, outer sheet glass 10, inner sheet glass 20, interlayer 30, first surface 11, second surface 12, third surface 21, fourth surface 22, middle portion 31, edge portion 32, heat insulation film layer 40, heat reflection film 40a, low transmittance film 40b, low emissivity film layer 50, functional film layer 60, adhesion enhancing layer 70. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application.

[0031] Please refer to FIG. 1 and FIG. 2, FIG. 1 is a structural schematic diagram of a vehicle 100 provided by the present application, and FIG. 2 is a sectional structural schematic diagram of a laminated glass 120 of the vehicle 100 shown in FIG. 1 in a first embodiment.

[0032] The vehicle 100 provided by the embodiments of the present application can be, but is not limited to, a sedan, a truck, a pickup truck, a business car, a bus, an off-road vehicle, and the present application does not make any limitation on this. In the present embodiment, the vehicle 100 can include a vehicle body 110, the laminated glass 120, an interior panel 130 and an adhesive 140. Exemplarily, the vehicle body 110 is a sheet metal part. The laminated glass 120 and the interior panel 130 are both mounted on the vehicle body 110. Among them, the interior panel 130 is located on the side of the laminated glass 120 facing the inside of the vehicle 100. In the present embodiment, the laminated glass 120 can be used as a sunroof glass, or can be used as a front windshield, a rear windshield or a quarter window glass, and the embodiments of the present application do not make any limitation on this. The adhesive 140 is adhered between the vehicle body 110 and the laminated glass 120, so as to realize the connection between the laminated glass 120 and the vehicle body 110. Exemplarily, the adhesive 140 is a vehicle body adhesive.

[0033] The laminated glass 120 has a middle region 121 and an edge region 122 arranged around the middle region 121. Among them, the width of the edge region 122 is less than 550 mm.

[0034] It should be noted that the above edge region 122 at least includes a region surrounded by the outer edge of the laminated glass 120 and the edge of the projection image of the interior panel 130 on the laminated glass 120 away from the outer edge of the laminated glass 120. That is, at least part of the interior panel 130 is located in the edge region 122.

[0035] It is understood that in some embodiments the edge region 122 and the intermediate region 121 do not have a significant demarcation feature, i.e. the edge region 122 and the intermediate region 121 are structurally identical or substantially identical, in which case the visible light transmittance TL1 of the edge region 122 is the same as the visible light transmittance TL2 of the intermediate region 121.

[0036] In other embodiments, however, the edge region 122 and the intermediate region 121 can have different compositions, thereby forming a relatively significant demarcation feature between the edge region 122 and the intermediate region 121, such as a demarcation line formed by different visible light transmittances. In the case where a demarcation line exists between the edge region 122 and the intermediate region 121, the visible light transmittance TL1 of the edge region 122 of the laminated glazing 120 can be less than or slightly greater than the visible light transmittance TL2 of the intermediate region 121 of the laminated glazing 120. Furthermore, the distance d between the demarcation line of the edge region 122 and the intermediate region 121 and the edge of the projection of the interior panel 130 on the laminated glazing 120, away from the edge of the laminated glazing 120, is between 0 mm ≤ d ≤ 15 mm. For example, the distance d between the demarcation line of the edge region 122 and the intermediate region 121 and the edge of the projection of the interior panel 130 on the laminated glazing 120, away from the edge of the laminated glazing 120, is between 0 mm ≤ d ≤ 10 mm.

[0037] In some embodiments, the visible light transmittance TL1 of the laminated glazing 120 in the edge region 122 is ≤ 6.5%. For example, the visible light transmittance TL1 of the edge region 122 is ≤ 5%. In other embodiments, the visible light transmittance TL1 of the edge region 122 is ≤ 2%.

[0038] The laminated glazing 120 also comprises an outer surface 120a facing the outside of the vehicle 100 and an inner surface 120b facing the inside of the vehicle 100. The visible light reflectance RL1 of the outer surface 120a of the edge region 122 of the laminated glazing 120 is between 2% ≤ RL1 ≤ 30%. For example, the visible light reflectance RL1 of the outer surface 120a of the edge region 122 of the laminated glazing 120 is between 6% ≤ RL1 ≤ 25%. In other embodiments, the visible light reflectance RL1 of the outer surface 120a of the edge region 122 of the laminated glazing 120 is between 8% ≤ RL1 ≤ 25%.

[0039] In this embodiment, the mirror index M of the outer surface 120a of the edge region 122 of the laminated glass 120 is between 0.5≤M≤16.5. It should be noted that the mirror index M of the outer surface 120a of the edge region 122 of the laminated glass 120 refers to the ratio of the visible light reflectance RL1 of the outer surface 120a of the edge region 122 of the laminated glass 120 to the product of the visible light reflectance RL2 of the inner surface 120b of the edge region 122 of the laminated glass 120 and the visible light transmittance TL1 of the edge region 122 of the laminated glass 120, i.e. M=RL1 / (RL2×TL1).

[0040] It can be understood that, since the parts of the vehicle body 110, the at least partial interior trim panel 130 and the bonding member 140 of the vehicle 100 are all located in the edge region 122, when the visible light transmittance TL1 of the laminated glass 120 in the edge region 122 is 0.5%≤TL1≤6.5%, the edge region 122 of the laminated glass 120 forms a one-way invisible effect. It should be noted that the "one-way invisible" means that, when the laminated glass 120 is in a sunny day or an external environment with an illumination intensity greater than 2000 lux, and the distance between the observer and the outer surface 120a of the laminated glass 120 is greater than or equal to 100 mm, the observer cannot see the specific structure and installation state of the functional elements of the vehicle body 110, the bonding member 140 and the interior trim panel 130 of the vehicle 100 which are matched with the edge region 122 when observing the interior of the vehicle 100 from the outer surface 120a of the edge region 122 of the laminated glass 120.

[0041] In this arrangement, the side of the edge region 122 facing the vehicle body 110 forms a dark area, and the side of the edge region 122 away from the vehicle body 110 forms a bright area. The edge region 122 is one-way invisible when the dark area is observed from the bright area. In this embodiment, the bonding member 140, the parts of the vehicle body 110 and the at least partial interior trim panel 130 of the vehicle 100 are all located in the dark area, and when the laminated glass 120 is in a sunny day or an external environment with an illumination intensity greater than 2000 lux, and the distance between the observer and the outer surface 120a of the laminated glass 120 is greater than or equal to 100 mm, the observer cannot see the bonding member 140, the parts of the vehicle body 110 and the at least partial interior trim panel 130 in the dark area when observing the dark area from the bright area in the edge region 122.

[0042] On this basis, the mirror surface index M of the outer surface 120a of the edge area 122 of the laminated glass 120 is set to be between 0.5 and 16.5. Under the action of the mirror reflection effect of the laminated glass 120, the transmission and reflection of light make the user unable to observe the components such as the bonding member 140, the partial vehicle body 110, the interior trim panel 130 and / or the functional element located in the edge area 122 through the edge area 122, so that the laminated glass 120 can shield the components such as the bonding member 140, the partial vehicle body 110, the interior trim panel 130 and / or the functional element in the edge area 122 without setting the ink shielding layer, and the appearance aesthetics of the laminated glass 120 is improved. At the same time, since the ink shielding layer is the main factor leading to the decrease of the structural strength of the edge area 122, the laminated glass 120 of the present application can not be provided with the ink shielding layer, so that the structural strength of the laminated glass 120 is not reduced by the ink shielding layer, thereby helping to improve the impact resistance of the edge of the laminated glass 120, ensuring the use reliability of the laminated glass 120 and improving the user experience. It should be understood that the laminated glass 120 can not be provided with the ink shielding layer means that the ink is not completely printed in the entire edge area 122 to achieve the shielding effect on the mounting position and the corresponding mounting structure between the laminated glass 120 and the vehicle body 110.

[0043] However, in the present application, it is not excluded that the ink printing structure which does not play a shielding and blocking role is locally provided in the edge area 122, especially on 120b, such as an ink layer for improving the adhesion performance of the bonding structure on the surface of the laminated glass 120, or an ink printing structure for only achieving installation positioning or identification.

[0044] The specific structure of the laminated glass 120 will be described below:

[0045] Please continue to refer to FIG. 2. In the first embodiment, the laminated glass 120 includes an outer sheet glass 10, an inner sheet glass 20 and at least one intermediate layer 30. The outer sheet glass 10 and the inner sheet glass 20 are spaced apart and oppositely arranged, and the at least one intermediate layer 30 is arranged between the outer sheet glass 10 and the inner sheet glass 20. The thickness of the outer sheet glass 10 is between 1.6 mm and 6.0 mm, and the visible light transmittance of the outer sheet glass 10 is between 2% and 94%. Specifically, the outer sheet glass 10 includes a first face 11 and a second face 12. The first face 11 and the second face 12 are oppositely arranged along the thickness direction of the outer sheet glass 10. The first face 11 is the outer surface 120a of the laminated glass 120.

[0046] In this embodiment, the thickness of the inner pane glass 20 is between 0.7 mm and 6.0 mm, and the visible light transmittance of the inner pane glass 20 is between 2% and 94%. Specifically, the inner pane glass 20 includes a third surface 21 and a fourth surface 22, which are oppositely arranged along the thickness direction of the inner pane glass 20. The third surface 21 is arranged towards the second surface 12, and the fourth surface 22 is arranged away from the second surface 12. In this embodiment, the fourth surface 22 is the inner surface 120b of the laminated glass 120. The adhesive 140 of the vehicle 100 is adhered to the fourth surface 22 and located in the edge region 122. In other words, the adhesive 140 is adhered between the inner pane glass 20 and the vehicle body 110, so as to fix the laminated glass 120 to the vehicle body 110.

[0047] In addition, the outer pane glass 10 and the inner pane glass 20 can be made of inorganic glass materials and / or organic glass materials. For example, the outer pane glass 10 and the inner pane glass 20 can be made of one or more of soda-lime glass, borosilicate glass, alumino-silicate glass, polymethyl acrylate, or polycarbonate. For example, the outer pane glass 10 and the inner pane glass 20 are made of soda-lime glass.

[0048] At least one intermediate layer 30 is arranged between the second surface 12 and the third surface 21. For example, the intermediate layer 30 is one layer. In other embodiments, the number of intermediate layers 30 can be two, three, or more, which are not limited in the embodiments of the present application. The intermediate layer 30 is used to bond the outer pane glass 10 and the inner pane glass 20. The visible light transmittance TL5 of the intermediate layer 30 is 0≤TL5≤90%. For example, when the laminated glass 120 is a sunroof glass, the visible light transmittance TL5 of the intermediate layer 30 of the laminated glass 120 is 2%≤TL5≤10%. The intermediate layer 30 also has the function of blocking ultraviolet rays. The ultraviolet transmittance TUV of the intermediate layer 30 is TUV≤1%. For example, the ultraviolet transmittance TUV of the intermediate layer 30 is TUV≤0.1%.

[0049] In this embodiment, the intermediate layer 30 can be a single thermoplastic polymer film or can be stacked by two or more thermoplastic polymer films. The material of the thermoplastic polymer film is selected from at least one of polyvinyl butyral (PVB), polyurethane (PU), ethylene-vinyl acetate copolymer (EVA), and ionomer (SGP). It should be noted that when the intermediate layer 30 includes two or more thermoplastic polymer films, the two or more thermoplastic polymer films can be of the same or different materials to meet different needs.

[0050] Specifically, the intermediate layer 30 includes an intermediate portion 31 and an edge portion 32 arranged around the intermediate portion 31. The intermediate portion 31 is arranged in the intermediate region 121, and the edge portion 32 is arranged in the edge region 122 of the laminated glass 120. In the embodiment, the material of the intermediate portion 31 and the material of the edge portion 32 of the intermediate layer 30 can be the same or different, and the embodiment of the present application does not make any limitation in this regard. In other words, the visible light transmittance of the intermediate portion 31 and the visible light transmittance of the edge portion 32 can be the same or different.

[0051] In the embodiment, at least one of the outer sheet glass 10, the inner sheet glass 20 and the intermediate layer 30 having a low visible light transmittance can be used to prepare the laminated glass 120, so that the visible light transmittance TL1 of the laminated glass 120 in the edge region 122 is less than or equal to 6.5%, thereby achieving a low transmittance of the laminated glass 120. For example, in some embodiments, the production materials of the edge portion 32 and the intermediate portion 31 of the intermediate layer 30 are reasonably selected, so that the visible light transmittance of the edge portion 32 is lower than the visible light transmittance of the intermediate portion 31, thereby making the visible light transmittance TL1 of the laminated glass 120 in the edge region 122 be 0.5%≤TL1≤6.5%, and further forming a one-way invisible effect in the edge region 122, so as to achieve the purpose that the user cannot observe the components such as the bonding member 140, the partial vehicle body 110 and the at least partial interior trim panel 130 inside the vehicle 100 from the edge region 122. However, in actual products, the visible light transmittance of the intermediate portion 31 of the intermediate layer 30 can be the same as the visible light transmittance of the edge portion 32. At this time, the intermediate layer 30 having a low visible light transmittance is used to produce the laminated glass 120, so that the visible light transmittance of the intermediate portion 31 and the visible light transmittance of the edge portion 32 are both low, thereby making the visible light transmittance TL1 of the laminated glass 120 in the edge region 122 be less than or equal to 6.5%, so as to form a one-way invisible effect in the edge region 122.

[0052] In addition, in some other embodiments, the visible light transmittance TL1 of the laminated glass 120 in the edge region 122 is 0, and a PVB film having a visible light transmittance between 0 and 0.5% can also be selected. At this time, without considering the mirror index of the outer surface 120a of the edge region 122, the edge region 122 of the laminated glass 120 can also form a one-way invisible effect, so as to achieve the purpose that the user cannot observe the components such as the bonding member 140 and the interior trim panel 130 inside the vehicle 100 from the edge region 122.

[0053] Please refer to FIG. 3, which is a schematic diagram of the cross-sectional structure of the laminated glass 120 of the vehicle 100 shown in FIG. 1 in a second embodiment.

[0054] The laminated glass 120 shown in the embodiment is different from the laminated glass 120 shown in the first embodiment in that the laminated glass 120 further comprises at least one heat insulation film layer 40. The at least one heat insulation film layer 40 is arranged between the outer sheet glass 10 and the inner sheet glass 20 and covers at least the edge area 122. Specifically, the at least one heat insulation film layer 40 is arranged on the second surface 12 of the outer sheet glass 10. The heat insulation film layer 40 can be formed on the second surface 12 by a physical vapor deposition (PVD) process, a chemical vapor deposition (CVD) process or a magnetron sputtering process, etc. In other embodiments, the heat insulation film layer 40 can also be arranged on the third surface 21 of the inner sheet glass 20. In the embodiment, the heat insulation film layer 40 is a heat reflective film 40a having a silver plating layer structure. The heat reflective film 40a can be used to reflect heat rays and increase the reflectivity of the outer surface 120a of the laminated glass 120, so that the laminated glass 120 achieves the heat insulation effect.

[0055] In other embodiments, the heat insulation film layer 40 can also be a low transmittance film 40b, and the visible light transmittance TL3 of the low transmittance film 40b is less than or equal to 7%. The low transmittance film 40b is arranged in the edge area 122 of the laminated glass 120, or the low transmittance film 40b completely covers the second surface 12 of the outer sheet glass 10. With the low transmittance film 40b, or in combination with the low transmittance film 40b and at least one of the outer sheet glass 10, the inner sheet glass 20 and the intermediate layer 30 having a low visible light transmittance, the visible light transmittance TL1 of the edge area 122 of the laminated glass 120 is less than or equal to 6.5%, so that the edge area 122 achieves the one-way invisibility.

[0056] In other embodiments, the heat insulation film layer 40 can also be a heat reflective film 40a, and the visible light transmittance TL4 of the heat reflective film 40a is less than or equal to 7%. That is, the heat insulation film layer 40 has both the function of reflecting heat rays and the low visible light transmittance.

[0057] It can be understood that by arranging the heat insulation film layer 40 in the laminated glass 120, the reflectivity of the outer surface 120a of the laminated glass 120 can be improved, thereby helping to increase the mirror index of the outer surface 120a of the laminated glass 120 in the edge area 122, and the visible light transmittance of the laminated glass 120 in the edge area 122 is in the range of 0.5% to 6.5%, which can promote the laminated glass 120 to achieve the effect of one-way invisibility in the edge area 122, so that the laminated glass 120 can shield the components such as the bonding member 140, the partial vehicle body 110, at least part of the interior trim panel 130 and / or functional elements in the edge area 122 without arranging the ink blocking layer, not only can improve the appearance of the laminated glass 120, but also can avoid the problem of structural strength reduction of the laminated glass 120 in the edge area 122 caused by the ink blocking layer, help to improve the impact resistance of the edge of the laminated glass 120, ensure the use reliability of the laminated glass 120, and improve the user experience.

[0058] In other embodiments, the heat insulation film layer 40 includes a heat reflective film 40a and a low transmittance film 40b. The heat insulation film layer 40 is between the outer sheet glass 10 and the intermediate layer 30. Specifically, the heat reflective film 40a is arranged on the second surface 12 of the outer sheet glass 10, and the low transmittance film 40b is arranged between the heat reflective film 40a and the intermediate layer 30. Under this arrangement, the visible light transmittance of the laminated glass 120 in the edge area 122 is in the range of 0.5% to 6.5%, which can promote the laminated glass 120 to achieve the effect of one-way invisibility in the edge area 122, so that the laminated glass 120 can shield the components such as the bonding member 140, the partial vehicle body 110, at least part of the interior trim panel 130 and / or functional elements in the edge area 122 without arranging the ink blocking layer, improve the appearance of the laminated glass 120, and improve the impact resistance of the edge of the laminated glass 120, thereby enhancing the user experience.

[0059] Please refer to FIG. 4, which is a schematic diagram of the cross-sectional structure of the laminated glass 120 of the vehicle 100 shown in FIG. 1 in a third embodiment.

[0060] The laminated glass 120 shown in the embodiment is different from the laminated glass 120 shown in the second embodiment described above in that the laminated glass 120 further comprises a low-emissivity film layer 50. The low-emissivity film layer 50 can reduce the heat radiated by the laminated glass 120 to the inside of the vehicle, so that the laminated glass 120 has the functions of heat insulation, ultraviolet protection, anti-glare, etc. Specifically, the low-emissivity film layer 50 is arranged on the fourth surface 22 of the inner sheet glass 20. For example, the low-emissivity film layer 50 is a TCO (transparent conductive oxide) film layer. The emissivity e of the low-emissivity film layer 50 is e≤0.3 W / m2. For example, the emissivity e of the low-emissivity film layer 50 is e≤0.25 W / m2. In some other embodiments, the emissivity e of the low-emissivity film layer 50 is e≤0.2 W / m2.

[0061] Referring to FIG. 5, FIG. 5 is a schematic view of a cross-sectional structure of the laminated glass 120 of the vehicle 100 shown in FIG. 1 in a fourth embodiment.

[0062] The laminated glass 120 shown in the embodiment is different from the laminated glass 120 shown in the first embodiment described above in that the laminated glass 120 further comprises a functional film layer 60. The functional film layer 60 is arranged between the outer sheet glass 10 and the inner sheet glass 20. For example, the functional film layer 60 is a composite multilayer film structure with light adjusting function, such as a PDLC (Polymer Dispersed Liquid crystal) film, an EC (Electrochromism) film, or a liquid crystal film, or the functional film layer 60 is a film structure capable of realizing an atmosphere lamp function, or the functional film layer 60 is a film structure capable of collecting and utilizing solar energy, or the functional film layer 60 is a film structure capable of realizing sound insulation function, and the embodiments of the present application do not make any limitation in this regard.

[0063] In the embodiment, the intermediate layer 30 has two layers. Along the thickness direction of the laminated glass 120, the two layers of the intermediate layer 30 are arranged on opposite sides of the functional film layer 60. That is, along the thickness direction of the laminated glass 120, the two layers of the intermediate layer 30 are arranged in a spaced manner, and the functional film layer 60 is connected between the two layers of the intermediate layer 30. Specifically, one layer of the intermediate layer 30 is arranged between the functional film layer 60 and the outer sheet glass 10, and the edge portion 32 and the intermediate portion 31 of the intermediate layer 30 are made of different materials. The other layer of the intermediate layer 30 is arranged between the functional film layer 60 and the inner sheet glass 20, and the edge portion 32 and the intermediate portion 31 of the intermediate layer 30 are made of the same material. In some other embodiments, the two layers of the intermediate layer 30 can also be made of the same material.

[0064] Referring to FIG. 6, FIG. 6 is a sectional view of the laminated glass 120 and the adhesive 140 of the vehicle 100 shown in FIG. 1 in a fifth embodiment.

[0065] The laminated glass 120 shown in the embodiment differs from the laminated glass 120 shown in the first embodiment described above in that the laminated glass 120 further comprises an adhesion-enhancing layer 70. The adhesion-enhancing layer 70 is located on the side of the inner sheet glass 20 facing away from the outer sheet glass 10 and in the edge region 122. Specifically, the adhesion-enhancing layer 70 is provided on the fourth surface 22 of the inner sheet glass 20. The adhesion-enhancing layer 70 is used to increase the roughness of the fourth surface 22 of the inner sheet glass 20 so that the adhesive 140 is more easily adhered to the inner sheet glass 20. By way of example, the adhesion-enhancing layer 70 can be an ink structure formed by printing dark ceramic ink onto the edge region 122 of the inner sheet glass 20 by means of screen printing or the like. In other embodiments, the adhesion-enhancing layer 70 can also be a coating structure that is capable of increasing the surface roughness of the inner sheet glass 20 and does not have a masking effect, and the embodiments of the application do not make strict limitations in this regard.

[0066] In the embodiment, the adhesive 140 of the vehicle 100 is provided on the side of the adhesion-enhancing layer 70 facing away from the inner sheet glass 20. It can be understood that, by providing the adhesion-enhancing layer 70 on the fourth surface 22 of the inner sheet glass 20, the adhesion reliability between the adhesive 140 and the laminated glass 120 can be enhanced, thereby helping to improve the connection reliability between the laminated glass 120 and the vehicle body 110. At the same time, the adhesion-enhancing layer 70 is retained on the side of the laminated glass 120 facing the interior of the vehicle 100, and the adhesion-enhancing layer 70 can also be used as an assembly positioning mark for the cushion, the trim strip or the support lamp component of the vehicle 100, so as to facilitate the rapid assembly of the components in the vehicle 100 and improve the production efficiency.

[0067] It should be noted that the adhesion-enhancing layer 70 described above only needs to be printed in a partial position of the edge region 122. Therefore, in actual production, the adhesion-enhancing layer 70 can also be retained in the edge region 122 according to the requirements of the product structure design, and the adhesion-enhancing layer 70 will not affect the structural strength of the laminated glass 120 in the edge region 122.

[0068] Referring to FIGS. 2, 4, 7 to 13, FIGS. 7 to 13 are structural schematic diagrams of the laminated glass 120 of the vehicle 100 shown in FIG. 1 in different embodiments.

[0069] The following will be further described in conjunction with specific embodiments, but the application is not limited to the following embodiments.

[0070] Embodiment 1-2

[0071] Embodiment 1-2 is a specific structure example of the laminated glass 120 in the first embodiment described above, as shown in FIG. 2 and FIG. 7. The outer pane glass 10, the inner pane glass 20, and the interlayer 30 in Embodiment 1-2 are prepared, and the interlayer 30 is bonded between the second face 12 of the outer pane glass 10 and the third face 21 of the inner pane glass 20 to obtain the laminated glass 120 of Embodiment 1-2.

[0072] Embodiment 1: As shown in FIG. 2, the edge portion 32 and the middle portion 31 of the interlayer 30 are both selected to be dark PVB with a thickness of 0.76 mm and a visible light transmittance of 2%; the outer pane glass 10 and the inner pane glass 20 are both selected to be ordinary glass with a thickness of 2.1 mm.

[0073] Embodiment 2: As shown in FIG. 7, the edge portion 32 and the middle portion 31 of the interlayer 30 are both selected to be light PVB with a thickness of 0.76 mm and a visible light transmittance of 18%; the outer pane glass 10 and the inner pane glass 20 are both selected to be ordinary dark glass with a thickness of 2.1 mm.

[0074] Embodiments 3-5

[0075] Embodiments 3-5 are specific structure examples of the laminated glass 120 in the second embodiment described above, as shown in FIG. 8 to FIG. 10. The outer pane glass 10, the inner pane glass 20, the interlayer 30, and the heat insulation film layer 40 in Embodiments 3-5 are prepared. The heat insulation film layer 40 is prepared on the second face 12 of the outer pane glass 10 by a magnetron sputtering process or the like. The outer pane glass 10 with the heat insulation film layer 40 and the inner pane glass 20 are connected together by the interlayer 30 to obtain Embodiments 3-5.

[0076] Embodiment 3: As shown in FIG. 8, the edge portion 32 of the interlayer 30 is selected to be dark transparent PVB with a thickness of 0.76 mm and a visible light transmittance of 5%, and the middle portion 31 of the interlayer 30 is selected to be transparent PVB; the heat insulation film layer 40 is selected to be a heat-reflecting film 40a with a structure of two silver-coated layers; the outer pane glass 10 and the inner pane glass 20 are both selected to be ordinary glass with a thickness of 2.1 mm.

[0077] Embodiment 4: As shown in FIG. 9, the edge portion 32 and the middle portion 31 of the interlayer 30 are both selected to be dark PVB with a thickness of 0.76 mm and a visible light transmittance of 5%; the heat insulation film layer 40 is selected to be a heat-reflecting film 40a with a structure of two silver-coated layers; the outer pane glass 10 and the inner pane glass 20 are both selected to be ordinary glass with a thickness of 2.1 mm.

[0078] Example 5: As shown in FIG. 10, the edge portion 32 and the intermediate portion 31 of the interlayer 30 are both selected to be transparent PVB with a thickness of 0.76 mm; the heat insulation film layer 40 is selected to be a low transmittance film 40b with a visible light transmittance less than or equal to 7%, and the low transmittance film 40b is arranged in the edge region 122; the outer sheet glass 10 and the inner sheet glass 20 are both selected to be ordinary glass with a thickness of 2.1 mm.

[0079] Examples 6-12

[0080] Examples 6-12 are specific structural examples of the laminated glass 120 in the third embodiment described above. The structures of the laminated glass 120 selected in Examples 6-12 are the same, as shown in FIG. 4. The outer sheet glass 10, the inner sheet glass 20, the interlayer 30, the heat insulation film layer 40, and the low-emissivity film layer 50 in Examples 6-12 are prepared. The heat insulation film layer 40 is prepared on the second face 12 of the outer sheet glass 10 by a magnetron sputtering process or the like, and the low-emissivity film layer 50 is prepared on the fourth face 22 of the inner sheet glass 20 by a magnetron sputtering process or the like. The outer sheet glass 10 and the inner sheet glass 20 are both selected to be ordinary glass with a thickness of 2.1 mm. The outer sheet glass 10 with the heat insulation film layer 40 and the inner sheet glass 20 with the low-emissivity film layer 50 are connected together by the interlayer 30 to obtain Examples 6-12. The difference between the laminated glass 120 selected in Examples 6-12 lies in the material of the interlayer 30 and the material for preparing the heat insulation film layer 40, which are described in detail as follows.

[0081] Example 6: The edge portion 32 and the intermediate portion 31 of the interlayer 30 are both selected to be dark PVB with a thickness of 0.76 mm and a visible light transmittance of 2%; the heat insulation film layer 40 is selected to be a heat-reflective film 40a with a structure of two silver-coated layers.

[0082] Example 7: The edge portion 32 and the intermediate portion 31 of the interlayer 30 are both selected to be dark PVB with a thickness of 0.76 mm and a visible light transmittance of 5%; the heat insulation film layer 40 is selected to be a heat-reflective film 40a with a structure of two silver-coated layers.

[0083] Example 8: The edge portion 32 and the intermediate portion 31 of the interlayer 30 are both selected to be dark PVB with a thickness of 0.76 mm and a visible light transmittance of 8%; the heat insulation film layer 40 is selected to be a heat-reflective film 40a with a structure of two silver-coated layers.

[0084] Examples 9-10: The edge portion 32 and the intermediate portion 31 of the interlayer 30 are both selected to be dark PVB with a thickness of 0.76 mm and a visible light transmittance of 2%; the heat insulation film layer 40 is selected to be a heat-reflective film 40a with a structure of three silver-coated layers.

[0085] Example 11: The edge portion 32 and the intermediate portion 31 of the interlayer 30 are both selected from dark PVB with a thickness of 0.76 mm and a visible light transmittance of 5%; the heat insulation film layer 40 is selected from heat reflective film 40a with a three-layer silver plating layer structure.

[0086] Example 12: The edge portion 32 and the intermediate portion 31 of the interlayer 30 are both selected from dark PVB with a thickness of 0.76 mm and a visible light transmittance of 8%; the heat insulation film layer 40 is selected from heat reflective film 40a with a three-layer silver plating layer structure.

[0087] Examples 13-15

[0088] Examples 13-15 are specific structural examples of the laminated glass 120 in the third embodiment described above, as shown in FIGS. 11-13. The outer pane glass 10, the inner pane glass 20, the interlayer 30, the heat insulation film layer 40, and the low-emissivity film layer 50 in Examples 13-15 are prepared. The heat insulation film layer 40 is prepared on the second face 12 of the outer pane glass 10 by a magnetron sputtering process or the like, and the low-emissivity film layer 50 is prepared on the fourth face 22 of the inner pane glass 20 by a magnetron sputtering process or the like. The outer pane glass 10 and the inner pane glass 20 are both selected from ordinary glass with a thickness of 2.1 mm. The outer pane glass 10 with the heat insulation film layer 40 and the inner pane glass 20 with the low-emissivity film layer 50 are connected together by the interlayer 30 to obtain Examples 13-15.

[0089] Example 13: As shown in FIG. 11, the edge portion 32 and the intermediate portion 31 of the interlayer 30 are both selected from transparent PVB with a thickness of 0.76 mm; the heat insulation film layer 40 is selected from low-transmittance film 40b with a visible light transmittance of less than or equal to 7%, and the low-transmittance film 40b covers the edge region 122 and the intermediate region 121.

[0090] Example 14: As shown in FIG. 12, the edge portion 32 and the intermediate portion 31 of the interlayer 30 are both selected from transparent PVB with a thickness of 0.76 mm; the heat insulation film layer 40 is selected from heat reflective film 40a with a two-layer silver plating layer structure, and the heat reflective film 40a has a visible light transmittance of less than or equal to 7%.

[0091] Example 15: As shown in FIG. 13, the edge portion 32 and the intermediate portion 31 of the interlayer 30 are both selected from transparent PVB with a thickness of 0.76 mm; the heat insulation film layer 40 has two layers, one of which is selected from heat reflective film 40a with a two-layer silver plating layer structure, and the other of which is selected from low-transmittance film 40b with a visible light transmittance of less than or equal to 7%, and the low-transmittance film 40b covers the edge region 122 and the intermediate region 121.

[0092] The visible light transmittance TL1 of the edge region 122, the visible light reflectance RL1 of the outer surface 120a of the edge region 122, the visible light reflectance RL2 of the inner surface 120b of the edge region 122, the mirror index M of the outer surface 120a of the edge region 122, and the visible light transmittance TL2 of the intermediate region 121 of the laminated glass 120 according to the above embodiments 1-15 are measured, and the measurement results of the embodiments 1-15 are recorded in Table 1.

[0093] The visible light transmittance TL1 of the edge region 122 and the visible light transmittance TL2 of the intermediate region 121: the transmittance of the laminated glass 120 to visible light with a wavelength of 380-780 nm is measured according to ISO 9050;

[0094] The visible light reflectance RL1 of the outer surface 120a of the edge region 122 and the visible light reflectance RL2 of the inner surface 120b of the edge region 122: the reflectance of the laminated glass 120 to visible light with a wavelength of 380-780 nm is measured according to ISO 9050;

[0095] The mirror index M: the mirror index of the outer surface 120a of the edge region 122 is calculated according to the formula M = RL1 / (RL2 x TL1).

[0096] Table 1

[0097] According to the experimental results, in the laminated glass 120 provided by the above embodiments 1-15, the visible light transmittance of the edge region 122 is between 0.5% and 6.5%, the visible light reflectance RL1 of the outer surface 120a of the edge region 122 is between 2% and 30%, and the mirror index M of the edge region 122 is between 0.5 and 16.5. This indicates that the edge region 122 of the laminated glass 120 provided by the above embodiments 1-15 can form a one-way invisible effect, so that when a user observes the interior of the vehicle 100 from the outer surface 120a of the edge region 122 of the laminated glass 120, the specific structure and installation state of the functional elements such as the vehicle body 110, the bonding member 140, and the interior trim panel 130 matched with the edge region 122 cannot be clearly seen. Therefore, the laminated glass 120 provided by the above embodiments 1-15 can shield the bonding member 140, part of the vehicle body 110, the interior trim panel 130, and / or the functional elements of the edge region 122 without setting the adhesion-enhancing layer 70, and meets the design requirements of the product.

[0098] The above has carried out the detailed introduction to the embodiment of the application, the principle and implementation mode of the application have been described by applying specific examples in this paper, the above embodiment explanation is only for helping understanding the method of the application and its core idea; at the same time, for the general technical personnel in the art, according to the idea of the application, there will be changes in specific implementation mode and application range, and the above-mentioned, the content of the specification should not be understood as the limitation of the application.

Claims

1. A laminated glass for use in a vehicle, characterized by, The laminated glass comprises an outer sheet of glass, an inner sheet of glass, and at least one interlayer, the outer sheet of glass and the inner sheet of glass being spaced apart along a thickness direction of the laminated glass, and the at least one interlayer being disposed between the outer sheet of glass and the inner sheet of glass; The laminated glass has a central region and a peripheral region surrounding the central region, and in the peripheral region, the laminated glass has a visible light transmittance TL1 of 6.5% or less, and the outer sheet of glass has a surface facing away from the inner sheet of glass with a specular index M of 0.5 to 16.

5.

2. The laminated glass according to claim 1, characterized by In the peripheral region, the outer sheet of glass has a surface facing away from the inner sheet of glass with a visible light reflectance RL1 of 2% to 30%, or a visible light reflectance RL1 of 6% to 25%, or a visible light reflectance RL1 of 8% to 25%, or a visible light reflectance RL1 of 4.5% to 15.6%.

3. Laminated glass according to claim 1 or 2, characterized in that In the peripheral region, the laminated glass has a visible light transmittance TL1 of 0.5% to 6.5%, or a visible light transmittance TL1 of 1.3% to 5.5%.

4. The laminated glass according to claim 1, characterized by The peripheral region has the same visible light transmittance TL1 as the central region.

5. The laminated glass according to claim 4, characterized by The peripheral region and the central region have no significant demarcation feature.

6. The laminated glass according to claim 1, characterized by The peripheral region has a visible light transmittance TL1 that is less than or slightly greater than the visible light transmittance TL2 of the central region.

7. The laminated glass according to claim 6, characterized by The peripheral region and the central region form a relatively significant demarcation feature, and the demarcation feature includes a demarcation line formed by different visible light transmittances.

8. The laminated glass according to claim 1, characterized by The laminated glass is prepared using at least one of the outer sheet of glass, the inner sheet of glass, and the interlayer having a low visible light transmittance, so that the laminated glass has a visible light transmittance TL1 of 6.5% or less in the peripheral region.

9. The laminated glass according to claim 1, characterized by The interlayer comprises an intermediate portion and a peripheral portion surrounding the intermediate portion, the intermediate portion is located in the central region, and the peripheral portion is located in the peripheral region, and the peripheral portion has a visible light transmittance that is less than or equal to the visible light transmittance of the intermediate portion.

10. The laminated glass according to claim 1, characterized by The laminated glass further comprises at least one thermal insulation film layer, and the at least one thermal insulation film layer is disposed between the outer sheet of glass and the interlayer, or the at least one thermal insulation film layer is disposed between the inner sheet of glass and the interlayer.

11. The laminated glass according to claim 5, characterized by The thermal insulation film layer comprises a heat-reflecting film, and / or the thermal insulation film layer comprises a low-transmittance film, and the low-transmittance film has a visible light transmittance TL3 of 7% or less.

12. The laminated glass according to claim 6, characterized by The heat-reflecting film has a visible light transmittance TL4 of 7% or less.

13. The laminated glass according to claim 1, wherein The laminated glass further comprises a low-emissivity film layer, which is arranged on the side of the inner sheet glass away from the outer sheet glass, and the emissivity e of the low-emissivity film layer is ≤0.3 W / m 2 .

14. The laminated glass according to claim 1, wherein The interlayer has two layers, and the two layers of the interlayer are spaced apart along a thickness direction of the laminated glass. The laminated glass further comprises a functional film layer, and the functional film layer is connected between the two layers of the interlayer.

15. The laminated glass according to claim 1, wherein When the laminated glass has a visible light transmittance TL1 of 0 in the peripheral region, the interlayer has a visible light transmittance TL5 of 0 to 0.5%.

16. The laminated glass according to claim 1, wherein The interlayer has an ultraviolet light transmittance TUV of 1% or less.

17. The laminated glass according to claim 1, wherein The laminated glass further comprises an adhesion-enhancing layer on the side of the inner sheet glass facing away from the outer sheet glass and in the edge region.

18. A vehicle characterized by comprising: A vehicle comprising a vehicle body and a laminated glass according to any one of claims 1 to 17, the laminated glass being mounted to the vehicle body, the edge region on the side facing the vehicle body forming a dark area, the edge region on the side facing away from the vehicle body forming a bright area, the dark area being viewed from the bright area, the edge region being unidirectionally invisible, wherein a part of the vehicle body is located in the dark area.

19. The vehicle of claim 18, wherein, The vehicle further comprises an adhesive member adhering between the inner sheet glass and the vehicle body and located in the edge region.

20. The vehicle of claim 18 or 19, characterized in that, The vehicle further comprises an interior trim panel located on the side of the inner sheet glass facing away from the outer sheet glass, at least a part of the interior trim panel being located in the edge region, the distance d between the edge of the projection of the interior trim panel on the inner sheet glass and the boundary line between the edge region and the middle region being 0 mm ≤ d ≤ 15 mm.

Images