Glass, glass assembly and vehicle

Abstract

The invention provides glass, a glass assembly and a vehicle, the glass comprises an outer layer structure, an inner layer structure and a bonding layer, the outer layer structure comprises an outer glass plate and a film layer structure, and the film layer structure is arranged on one surface of the outer glass plate in the thickness direction; the inner layer structure comprises an inner glass plate and a pattern layer, and the pattern layer is arranged on one surface of the inner glass plate in the thickness direction and has a pattern shape; the outer layer structure, the bonding layer and the inner layer structure are sequentially connected in a stacked mode in the thickness direction of the glass, the film layer structure is located between the outer glass plate and the bonding layer, and the pattern layer is located between the inner glass plate and the bonding layer, or the pattern layer is located on the side, opposite to the bonding layer, of the inner glass plate. The visible light transmittance of the outer layer structure is smaller than that of the inner layer structure.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, in particular to a glass, a glass assembly and a vehicle. BACKGROUND

[0002] With the development of vehicle technology, users have higher and higher requirements for the driving experience of vehicles, especially for the driving experience of vehicles. For the sunroof glass of a vehicle, the user needs the sunroof glass to have both sunshade effect and atmosphere lamp display effect, and at the same time, the sunroof glass needs to meet the requirement of lightweight.

[0003] Most of the existing sunroof glasses are of a three-piece structure or a two-piece structure. However, the sunroof glass of the three-piece structure cannot meet the requirement of lightweight; the sunroof glass of the two-piece structure generally uses a low visible light transmittance gray film to meet the sunshade effect, but the gray film will absorb light, resulting in poor atmosphere lamp display effect of the sunroof glass, so that the sunroof glass cannot meet both good atmosphere lamp display effect and good sunshade effect. SUMMARY

[0004] The purpose of the present application is to provide a glass, a glass assembly and a vehicle, which can meet the requirements of lightweight, good atmosphere lamp display effect and good sunshade effect of the sunroof glass at the same time.

[0005] In a first aspect, an embodiment of the present application provides a glass, comprising:

[0006] an outer layer structure, the outer layer structure comprising an outer glass sheet and a film layer structure for adjusting transmittance and reflectance, the film layer structure being arranged on one surface of the outer glass sheet in the thickness direction;

[0007] an inner layer structure, the inner layer structure comprising an inner glass sheet and a pattern layer, the pattern layer being arranged on one surface of the inner glass sheet in the thickness direction, the pattern layer having a pattern shape;

[0008] a bonding layer;

[0009] The outer layer structure, the bonding layer and the inner layer structure are sequentially and connected in the thickness direction of the glass, and the film layer structure is located between the outer glass sheet and the bonding layer.

[0010] The pattern layer is located between the inner glass sheet and the bonding layer, or the pattern layer is located on the side of the inner glass sheet away from the bonding layer.

[0011] The visible light transmittance of the outer layer structure is less than the visible light transmittance of the inner layer structure.

[0012] In one embodiment, the film layer structure comprises a heat reflecting layer and a transmittance adjusting layer, and the transmittance adjusting layer and the heat reflecting layer are in an integrated structure or a separate structure.

[0013] In one embodiment, the ratio of the visible light transmittance of the outer layer structure to the visible light transmittance of the inner layer structure is less than or equal to 0.15.

[0014] In one embodiment, the heat insulation index of the outer layer structure is less than the heat insulation index of the inner layer structure, and the ratio of the heat insulation index of the outer layer structure to the heat insulation index of the inner layer structure is less than or equal to 0.1.

[0015] In one embodiment, the solar energy reflectance of the heat reflecting layer is greater than or equal to 28%.

[0016] In one embodiment, the glass further comprises a second heat insulation layer, which is arranged on the surface of the inner glass sheet away from the bonding layer, and the emissivity of the second heat insulation layer is less than or equal to 0.3.

[0017] In one embodiment, the visible light transmittance of the outer glass sheet is greater than or equal to 88%.

[0018] In one embodiment, the bonding layer is transparent, and the visible light transmittance thereof is greater than or equal to 40%.

[0019] In one embodiment, the inner glass sheet is made of ultra-white glass.

[0020] In one embodiment, the glass further comprises a light adjusting film, which can be electrically connected to an external power supply.

[0021] The bonding layer comprises a first sub-layer, a second sub-layer and a third sub-layer, the first sub-layer and the third sub-layer are respectively arranged on the opposite sides of the light adjusting film in the thickness direction of the light adjusting film and sandwich the light adjusting film, and the second sub-layer is filled between the first sub-layer and the third sub-layer and surrounds the edge of the light adjusting film.

[0022] In the thickness direction of the glass, the projection of the pattern layer is located in the light adjusting film.

[0023] In one embodiment, the visible light transmittance of the first sub-layer is less than or equal to 40%, and the visible light transmittance of the third sub-layer is greater than or equal to 40%.

[0024] In one embodiment, the thickness of the second sub-layer is the same as the thickness of the light adjusting film.

[0025] In one embodiment, when the light control film is in the first state, the overall visible light transmittance of the outer layer structure and the light control film is greater than or equal to 10% and less than or equal to 20%; when the light control film is in the second state, the overall visible light transmittance of the outer layer structure and the light control film is greater than or equal to 0.2% and less than or equal to 2%.

[0026] In a second aspect, the embodiments of the present application provide a glass assembly, which comprises the glass and an ambient light structure, wherein the ambient light structure is arranged on the surface of the inner glass sheet away from the pattern layer and close to the edge of the glass.

[0027] In a third aspect, the embodiments of the present application provide a vehicle, which comprises a vehicle body, an external power supply and the glass assembly, wherein the glass assembly is mounted on the vehicle body, the ambient light structure is electrically connected with the external power supply, and the light emitting source of the ambient light structure emits light to the inner glass sheet after being powered on.

[0028] In the related art, most of the existing sunroof glasses are of a three-piece structure or a two-piece structure. However, the sunroof glass of the three-piece structure cannot meet the requirement of lightweight. The sunroof glass of the two-piece structure generally adopts a gray film (i.e., a bonding layer with low visible light transmittance) to meet the sunshade effect, but the gray film can absorb light, resulting in poor display effect of the ambient light of the sunroof glass, so that the sunroof glass cannot meet both the good ambient light display effect and the good sunshade effect.

[0029] In the embodiments of the present application, the glass is of a sandwich structure composed of two pieces of glass, which meets the requirement of lightweight of the glass. Meanwhile, the glass adopts a transmittance adjusting layer, which can control the light from outside of the vehicle and has low visible light transmittance, and the transmittance adjusting layer has weak ability to absorb the light emitted by the light emitting source, so that the good sunshade effect is achieved. Moreover, the bonding layer in the glass is made of transparent thermoplastic material, which weakens the ability of the bonding layer to absorb the light emitted by the light emitting source, and in combination with the inner glass sheet made of super white glass, the light transmittance is improved, so that the overall light absorption ability of the glass is weakened, and the good ambient light display effect is achieved. Therefore, the glass in the embodiments meets the requirements of lightweight, good sunshade effect and good ambient light display effect. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 FIG. 1 shows a structure schematic diagram of a vehicle according to an embodiment of the present application;

[0031] Figure 2 FIG. 2 shows a partial structure exploded sectional schematic diagram of the glass assembly of the vehicle shown in FIG. 1; Figure 1

[0032] Figure 3 ​Fig. 2 is a schematic diagram of a cross section of a glass assembly of a vehicle according to an embodiment of the present application; Figure 1 Fig. 3 is a schematic diagram of an exploded cross section of a partial structure of a second embodiment of a glass assembly of a vehicle according to an embodiment of the present application;

[0033] Figure 4 Fig. 4 is a schematic diagram of an exploded cross section of a partial structure of a third embodiment of a glass assembly of a vehicle according to an embodiment of the present application; Figure 1

[0034] Figure 5 Fig. 5 is a schematic diagram of an exploded cross section of a partial structure of a fourth embodiment of a glass assembly of a vehicle according to an embodiment of the present application; Figure 1

[0035] Figure 6 Fig. 6 is a bottom view of a glass assembly of a vehicle according to an embodiment of the present application. Figure 1

[0036] The corresponding names of the reference signs in the figures are: vehicle 1000, tool body 200, glass assembly 100, glass 10, outer glass plate 11, first surface 111, second surface 112, adhesive layer 12, inner glass plate 13, third surface 131, fourth surface 132, heat-reflecting layer 14, transmittance-adjusting layer 15, pattern layer 16, film layer structure 17, light-adjusting film 18, first sub-layer 121, second sub-layer 122, third sub-layer 123, atmosphere lamp structure 20, light guide 21, light source 22, decorative plate 23, accommodating cavity M, colloid 30, outer layer structure Q1, inner layer structure Q2, pattern O. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to 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 of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0038] In the embodiments of the present application, the terms "first", "second", and the like are only used for description purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second", and the like can explicitly or implicitly include one or more of the features. For a person of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances. And "multiple" in the present application means two and more than two.

[0039] Please refer to Figure 1 and Figure 2 , Figure 1 Fig. 1 is a structural schematic diagram of a vehicle according to an embodiment of the present application, Figure 2 Fig. 2 is a schematic diagram of a cross section of a glass assembly of a vehicle according to an embodiment of the present application; Figure 1 ​​​A schematic exploded cross-sectional view of a portion of the structure of a glass assembly of a vehicle is shown.

[0040] The present application provides a vehicle 1000. The vehicle 1000 may be a vehicle, a ship, a submarine, an airplane, and the like. The vehicle 1000 in the embodiment of the present application is described using a vehicle as an example. The vehicle may be, but is not limited to, a sedan, a multi-purpose vehicle (MPV), a sport utility vehicle (SUV), an off-road vehicle (ORV), a pickup truck, a van, a bus, a truck, and the like. In the specific embodiments of the present application, the vehicle is described using a sedan as an example.

[0041] For the convenience of description, in this application, the definition Figure 1 The width direction of the vehicle 1000 is the X-axis direction, the length direction is the Y-axis direction, and the height direction is the Z-axis direction.

[0042] The directional terms such as "top", "bottom", "left", "right", "front" and "back" mentioned in the description of this application are based on the Figure 1 The description of the orientation of the vehicle 1000 shown is based on the forward direction in the length direction of the vehicle 1000 as the positive direction of the Y axis, the direction from the left to the right in the width direction of the vehicle 1000 as the positive direction of the X axis, and the direction away from the ground in the height direction of the vehicle 1000 as the positive direction of the Z axis.

[0043] The vehicle 1000 includes a vehicle body 200, a glass assembly 100 and an external power source. The glass assembly 100 and the external power source are both mounted on the vehicle body 200. Figure 1 As shown, the glass assembly 100 includes a glass 10. The glass 10 includes an inner glass surface and an outer glass surface. The outer glass surface and the inner glass surface are arranged opposite to each other along the thickness direction of the glass 10. When the glass assembly 100 is installed on the tool body 200, the outer glass surface of the glass 10 faces the outside of the vehicle, and the inner glass surface of the glass 10 faces the inside of the vehicle. Figure 2 As shown, a glue 30 is provided on the edge of the inner glass surface, and the glass 10 is bonded and fixed to the vehicle 1000 via the glue 30 .

[0044] The glass 10 can be a side window glass, a corner window glass, a sunroof glass, a rear windshield, a front windshield, etc. of a vehicle, and the glass assembly 100 can be a side window assembly, a corner window assembly, a sunroof assembly, a rear windshield assembly, a front windshield assembly, etc. The glass 10 is described by taking the sunroof glass as an example, and the glass assembly 100 is described by taking the sunroof assembly as an example.

[0045] Please refer again to Figure 2 , Figure 2 The cross-sectional structure of the first embodiment of the glass assembly is shown.

[0046] In this embodiment, the glass 10 of the glass assembly 100 is of a sandwich structure. The glass 10 includes an outer glass sheet 11, a bonding layer 12, and an inner glass sheet 13. The outer glass sheet 11, the bonding layer 12, and the inner glass sheet 13 are sequentially stacked in the thickness direction of the glass 10. When the glass assembly 100 is installed on the tool body 200, the outer glass sheet 11 faces the outside of the vehicle, and the inner glass sheet 13 faces the inside of the vehicle.

[0047] The outer glass sheet 11 includes a first surface 111 and a second surface 112. The first surface 111 and the second surface 112 are oppositely arranged in the thickness direction of the outer glass sheet 11. When the glass 10 is installed on the tool body 200, the first surface 111 of the outer glass sheet 11 faces the outside of the vehicle, as an outer surface of the outer glass sheet 11, and as an outer glass surface of the glass 10. The second surface 112 of the outer glass sheet 11 faces away from the outside of the vehicle, as an inner surface of the outer glass sheet 11.

[0048] The outer glass sheet 11 can be made of inorganic glass and / or organic glass material, such as soda-lime glass, borosilicate glass, aluminosilicate glass, polymethyl acrylate, polycarbonate, etc. Preferably, the outer glass sheet 11 is made of soda-lime glass. The thickness of the outer glass sheet 11 is greater than or equal to 1.0 mm and less than or equal to 3.5 mm. The visible light transmittance of the outer glass sheet 11 is greater than or equal to 88%.

[0049] The inner glass sheet 13 includes a third surface 131 and a fourth surface 132. The third surface 131 and the fourth surface 132 are oppositely arranged in the thickness direction of the inner glass sheet 13. When the glass 10 is installed on the tool body 200, the fourth surface 132 of the inner glass sheet 13 faces the inside of the vehicle, as an outer surface of the inner glass sheet 13, and as an inner glass surface of the glass 10. The third surface 131 of the inner glass sheet 13 faces away from the inside of the vehicle, as an inner surface of the inner glass sheet 13.

[0050] The material of the inner glass sheet 13 can be the same as the material of the outer glass sheet 11. The inner glass sheet 13 can be made of inorganic glass and / or organic glass material, such as soda-lime glass, borosilicate glass, aluminosilicate glass, polymethacrylate, polycarbonate, etc. Preferably, the inner glass sheet 13 is made of soda-lime glass. More preferably, the inner glass sheet 13 is made of ultra-clear glass, in which case the inner glass sheet 13 has a visible light transmittance greater than or equal to 91.5% and contains less than or equal to 0.015% of Fe203. The thickness of the inner glass sheet 13 is greater than or equal to 0.5 mm and less than or equal to 2.1 mm.

[0051] The adhesive layer 12 is located between the second surface 112 of the outer glass sheet 11 and the third surface 131 of the inner glass sheet 13. The adhesive layer 12 is used to bond the outer glass sheet 11 and the inner glass sheet 13 together to form a laminated glass structure, thereby improving the structural strength of the glass 10 and preventing the glass debris from splashing and scratching the driver or passenger inside the vehicle after the outer glass sheet 11 and the inner glass sheet 13 are broken, so that the glass 10 meets more safety standards and regulatory requirements in more scenarios.

[0052] The adhesive layer 12 is made of a transparent thermoplastic material. The thermoplastic material can be selected from any one or a combination of polyvinyl alcohol, polycarbonate, ethylene-vinyl acetate, thermoplastic polyurethane, polyacetal resin, polybutylene terephthalate, polyethylene-vinyl acetate, polyethylene terephthalate, polyvinyl chloride, polyvinyl fluoride, polyacrylate, polymethyl methacrylate, and polyurethane, etc. The visible light transmittance of the adhesive layer 12 is greater than or equal to 40%. Preferably, the visible light transmittance of the adhesive layer 12 is greater than or equal to 70%. The thickness of the adhesive layer 12 is greater than or equal to 0.35 mm and less than or equal to 1.14 mm.

[0053] The glass 10 further comprises a film layer structure 17. The film layer structure 17 is located between the adhesive layer 12 and the outer glass sheet 11, and the film layer structure 17 is arranged on the second surface 112 of the outer glass sheet 11. The film layer structure 17 is used to adjust the transmittance and reflectance. In the present embodiment, the film layer structure 17 comprises a heat reflective layer 14 and a transmittance adjusting layer 15. The transmittance adjusting layer 15 and the heat reflective layer 14 are in a separate structure. Both the heat reflective layer 14 and the transmittance adjusting layer 15 are located between the adhesive layer 12 and the outer glass sheet 11, and the heat reflective layer 14 is arranged on the second surface 112 of the outer glass sheet 11. The transmittance adjusting layer 15 is connected to the surface of the heat reflective layer 14 away from the outer glass sheet 11 in a stacked manner.

[0054] The heat reflecting layer 14 is used to reflect light (e.g. sunlight) from outside the vehicle, and functions as a heat insulation layer. The heat reflecting layer 14 can be, but is not limited to, an infrared reflecting layer (i.e. silver coating). The heat reflecting layer 14 has a solar energy reflectance RE greater than or equal to 28%. Preferably, the heat reflecting layer 14 has a solar energy reflectance RE greater than or equal to 40%. The heat reflecting layer 14 can be formed on the second surface 112 of the outer glass sheet 11 using a coating process such as, but not limited to, physical vapor deposition (PVD) or chemical vapor deposition (CVD) or spraying or rolling.

[0055] The transmittance adjusting layer 15 is used to adjust the visible light transmittance. The transmittance adjusting layer 15 can be formed using a coating process such as, but not limited to, physical vapor deposition (PVD) or chemical vapor deposition (CVD) or spraying or rolling. In particular, the transmittance adjusting layer 15 can be formed by a magnetron sputtering process. In one embodiment, the material of the transmittance adjusting layer 15 can include SiN with a thickness of 34 nm, NiCr with a thickness of 19 nm, SiN with a thickness of 80 nm, NiCr with a thickness of 15 nm, SiN with a thickness of 8 nm, and SiO2 with a thickness of 2 nm. The SiN with a thickness of 34 nm, the NiCr with a thickness of 19 nm, the SiN with a thickness of 80 nm, the NiCr with a thickness of 15 nm, the SiN with a thickness of 8 nm, and the SiO2 with a thickness of 2 nm are stacked in sequence. In other embodiments, the transmittance adjusting layer 15 can not be limited to the above structure.

[0056] The glass 10 further comprises a pattern layer 16. The pattern layer 16 is located between the inner glass sheet 13 and the adhesive layer 12, and the pattern layer 16 is arranged on the third surface 131 of the inner glass sheet 13 or the fourth surface 132 of the inner glass sheet 13. The pattern layer 16 has a pattern shape. The pattern shape can be, but is not limited to, a simple geometric image such as a line, a circle, a square, a triangle, or can be a special geometric image such as a science fiction picture, an animation character, a trendy item, etc. The pattern layer 16 can be processed to form the pattern shape on the third surface 131 of the inner glass sheet 13 by a process such as laser engraving. Alternatively, the pattern layer 16 can form the pattern shape on the third surface 131 of the inner glass sheet 13 by silk-screen printing an ink pattern. Alternatively, the pattern layer 16 can be formed on the adhesive layer 12 by printing. Alternatively, the pattern layer 16 is a scattering particle, which is a scattering structure that refracts, reflects, or the like of light, and can be arranged in the adhesive layer 12 or on the third surface 131 of the inner glass sheet 13. Alternatively, the pattern layer 16 can be a photoluminescent structure that can obtain energy from received light and emit visible light, and the emitted visible light presents the pattern shape. In the embodiment, the pattern layer 16 is formed on the third surface 131 of the inner glass sheet 13, as shown in FIG. 1. Figure 2

[0057] The glass assembly 100 further comprises an ambient light structure 20. The ambient light structure 20 is arranged on the fourth surface 132 of the inner glass sheet 13, i.e. the ambient light structure 20 is arranged on the inner glass surface of the glass 10. The ambient light structure 20 is arranged adjacent to and spaced apart from the colloid 30, and the ambient light structure 20 is closer to the middle of the inner glass sheet 13 than the colloid 30. The ambient light structure 20 can achieve the ambient light display effect of the vehicle.

[0058] The ambient light structure 20 comprises a light guide 21, a light source 22, and a decorative plate 23. The decorative plate 23 covers the fourth surface 132 of the inner glass sheet 13 and forms a containing cavity M with the inner glass sheet 13. The light guide 21 and the light source 22 are both contained in the containing cavity M. The light guide 21 is arranged on the fourth surface 132 of the inner glass sheet 13, and the light source 22 is connected to a side surface of the light guide 21 away from the inner glass sheet 13. The light source 22 can be electrically connected to an external power source and emit light. The light can be conducted to the pattern layer 16 through the light guide 21 and the inner glass sheet 13. In the embodiment, the light guide 21 and the decorative plate 23 are both connected and fixed to the fourth surface 132 of the inner glass sheet 13 by adhesion. The light source 22 comprises a plurality of light-emitting diodes arranged at intervals.

[0059] ​In this embodiment, when an external power source energizes the light source 22, it emits light. This light is then conducted through the light guide 21 to the inner glass panel 13, where it enters the inner glass panel 13 through the fourth surface 132 of the inner glass panel 13. A portion of the light that enters the inner glass panel 13 exits through the third surface 131 of the inner glass panel 13 and is incident on the patterned layer 16 for reflection. The light that exits the inner glass panel 13 through the patterned layer 16 is observed by people inside the vehicle, creating an ambient lighting effect. For example, if the light source 22 is opposite one end of the patterned layer 16, the light is incident on the patterned layer 16 and reflected from the reflective area of ​​the patterned layer 16.

[0060] In this embodiment, the outer glass sheet 11, heat-reflecting layer 14, and transmittance-adjusting layer 15 constitute the outer layer structure Q1 of the glass 10. Specifically, the outer glass sheet 11 and film layer structure 17 constitute the outer layer structure Q1 of the glass 10. The inner glass sheet 13 and pattern layer 16 together constitute the inner layer structure Q2 of the glass 10. The outer layer structure Q1 and the inner layer structure Q2 are located on opposite sides of the adhesive layer in the thickness direction, and the outer layer structure Q1 and the inner layer structure Q2 are bonded together by the adhesive layer to form a single structure. It can be understood that the glass 10 includes the outer layer structure Q1, the adhesive layer 12, and the inner layer structure Q2. The outer layer structure Q1, the adhesive layer 12, and the inner layer structure Q2 are stacked and connected along the thickness direction of the glass 10.

[0061] In this embodiment, the visible light transmittance TL1 of the outer structure Q1 is less than the visible light transmittance TL2 of the inner structure Q2. The ratio of TL1 to TL2 is less than or equal to 0.15. The thermal insulation index Tir1 of the outer structure Q1 is less than the thermal insulation index Tir2 of the inner structure Q2. The thermal insulation index Tir is an important parameter for measuring the thermal insulation performance of a material, which is calculated and measured with reference to the ISO 9050 standard. The ratio of Tir1 to Tir2 is less than or equal to 0.1. The visible light transmittance of the outer glass plate 11 is greater than or equal to 88%. When light from outside the vehicle is incident on the glass 10, the outer glass plate 11 absorbs less heat from the light from outside the vehicle. Moreover, after the light from outside the vehicle enters the glass 10, it can be reflected by the heat reflection layer 14, thereby ensuring the thermal insulation performance of the glass 10, achieving a good sunshade effect, and improving the comfort inside the vehicle.

[0062] Furthermore, the visible light transmittance of the adhesive layer 12 is greater than or equal to 40%, which reduces light absorption by the adhesive layer 12 and ensures the display effect of the ambient light. Furthermore, in this embodiment, the inner glass plate 13 is made of ultra-clear glass with a visible light transmittance of greater than or equal to 91.5%, which reduces light absorption by the inner glass plate 13 and further enhances the display effect of the ambient light.

[0063] In some embodiments, the glass 10 further comprises a second heat insulation layer. The second heat insulation layer is disposed on the fourth surface 132 of the inner glass sheet 13. The second heat insulation layer can be, but is not limited to, a transparent conductive oxide film (also referred to as a TCO film layer). The second heat insulation layer can serve the purpose of heat insulation, so as to further improve the heat insulation performance of the glass 10 and improve the comfort of the vehicle interior. The emissivity e of the second heat insulation layer is less than or equal to 0.3. Preferably, the emissivity e of the second heat insulation layer is less than or equal to 0.25. More preferably, the emissivity e of the second heat insulation layer is less than or equal to 0.2.

[0064] In the related art, existing sunroof glasses are mostly in a three-piece structure or a two-piece structure. However, the sunroof glass in the three-piece structure cannot meet the requirement of lightweight, and the sunroof glass in the two-piece structure generally adopts a gray film (i.e., a bonding layer with low visible light transmittance) to meet the sunshade effect. However, the gray film will absorb light, resulting in poor display effect of the ambient light of the sunroof glass, so that the sunroof glass cannot simultaneously meet the better ambient light display effect and the better sunshade effect.

[0065] In the embodiments of the present application, the glass 10 adopts a sandwich structure composed of two pieces of glass, so as to meet the requirement of lightweight of the glass 10. Meanwhile, the glass 10 adopts the transmittance adjusting layer 15, which can control the light from the outside of the vehicle and has low visible light transmittance, and the transmittance adjusting layer 15 has weak light absorption capacity for the light emitted by the light source 22, so as to achieve a better sunshade effect. Moreover, the bonding layer 12 in the glass 10 is made of transparent thermoplastic material, so as to weaken the light absorption capacity of the bonding layer 12 for the light emitted by the light source 22, and in combination with the selection of the inner glass sheet 13 made of super white glass, the light transmittance is improved, so as to weaken the overall light absorption capacity of the glass 10, and a better ambient light display effect is achieved. Therefore, the glass 10 in the embodiments meets the requirements of lightweight, better sunshade effect and better ambient light display effect.

[0066] Please refer to Figure 3 , Figure 3 for Figure 1 the exploded cross-sectional schematic view of part of the second embodiment of the glass assembly of the vehicle.

[0067] In the embodiments, the structure of the glass assembly 100 is different from that in the first embodiment. In the embodiments, the heat reflection layer 14 and the transmittance adjusting layer 15 of the film layer structure 17 in the glass 10 are in an integrated structure. The heat reflection layer 14 and the transmittance adjusting layer 15 can be integrally coated by a magnetron sputtering process. It can be understood that the integrally formed film layer structure 17 integrates the functions of light control and heat insulation reflection.

[0068] In an embodiment, the film layer structure 17 is formed by the ZnSnOx AZO with a thickness of 9 nm, Ag with a thickness of 11 nm, TiO with a thickness of 8 nm, ZnSnO with a thickness of 65 nm x AZO with a thickness of 10 nm, Ag with a thickness of 10 nm, TiO with a thickness of 9 nm x AZO with a thickness of 12 nm, SiN with a thickness of 20 nm. Alternatively, the film layer structure 17 is made of ZnSnO with a thickness of 26 nm x AZO with a thickness of 10 nm, Ag with a thickness of 12.5 nm, TiO with a thickness of 8 nm, ZnSnO with a thickness of 55 nm x AZO with a thickness of 15 nm, Ag with a thickness of 13.5 nm, TiO with a thickness of 9 nm x ZnSnO with a thickness of 53 nm x AZO with a thickness of 11 nm, Ag with a thickness of 11.5 nm, TiO with a thickness of 11 nm. In other embodiments, the film layer structure 17 can not be limited to the above structures.

[0069] In this embodiment, the outer layer structure Q1 of the glass 10 includes the film layer structure 17 and the outer glass plate 11. The glass 10 adopts the integrally formed heat reflecting layer 14 and the transmittance adjusting layer 15, which saves the process steps of the glass 10 and improves the production efficiency of the glass 10. In this embodiment, the same contents as in the above first embodiment are not repeated here.

[0070] Please refer to Figure 4 , Figure 4 is Figure 1 the exploded cross-sectional schematic view of the partial structure of the third embodiment of the glass assembly of the vehicle.

[0071] In this embodiment, different from the structure of the glass assembly 100 in the above first embodiment, the glass 10 further includes the dimming film 18 in this embodiment. The dimming film 18 is electrically connected with the external power supply of the vehicle. The visible light transmittance of the dimming film 18 can be adjusted by the power-on and power-off of the external power supply, so as to meet the requirements of the visible light transmittance of the glass 10 in multiple scenes. When the dimming film 18 has a lower visible light transmittance, it can play a role of sunshade and privacy protection. When the dimming film 18 has a higher visible light transmittance, it can ensure the brightness of the internal environment of the vehicle and is conducive to observing the external and internal environment of the vehicle through the glass 10.

[0072] The material of the dimming film 18 can be selected from one of a polymer dispersed liquid crystal film (PDLC), a suspended particle film (SPD), an electrochromic film (EC), and the like. For example, the dimming film 18 is made of a PDLC film including a plurality of liquid crystal cells, and an external power source can independently power each of the liquid crystal cells in the PDLC film to change the visible light transmittance of the liquid crystal cells.

[0073] The dimming film 18 has a first state and a second state. In the present embodiment, when the dimming film 18 is powered on, the dimming film 18 is in the first state. When the dimming film 18 is powered off, the dimming film 18 is in the second state. In some embodiments, when the dimming film 18 is powered off, the dimming film 18 is in the first state. When the dimming film 18 is powered on, the dimming film 18 is in the second state.

[0074] In the present embodiment, the structure of the bonding layer 12 is also different from that of the bonding layer 12 in the first embodiment. In the present embodiment, the bonding layer 12 is a three-layer structure, and the bonding layer 12 includes a first sub-layer 121, a second sub-layer 122, and a third sub-layer 123. The first sub-layer 121, the second sub-layer 122, and the third sub-layer 123 are sequentially stacked and connected along the thickness direction of the bonding layer 12. The first sub-layer 121 is closer to the outer glass plate 11 than the third sub-layer 123. The first sub-layer 121, the second sub-layer 122, and the third sub-layer 123 are all made of thermoplastic material. The first sub-layer 121 is a dark film with a visible light transmittance less than or equal to 40%. Preferably, the visible light transmittance of the first sub-layer 121 is less than or equal to 10%. The third sub-layer 123 is a transparent film with a visible light transmittance greater than or equal to 40%. Preferably, the visible light transmittance of the third sub-layer 123 is greater than or equal to 70%. The thickness of the first sub-layer 121, the second sub-layer 122, and the third sub-layer 123 is all greater than or equal to 0.35 mm and less than or equal to 1.14 mm. In some embodiments, the bonding layer 12 can be a multi-layer structure with more than three layers.

[0075] In the present embodiment, the first sub-layer 121 and the third sub-layer 123 are respectively located on opposite sides of the thickness direction of the dimming film 18 and sandwich the dimming film 18. The second sub-layer 122 fills between the first sub-layer 121 and the third sub-layer 123 and the dimming film 18 and surrounds the edges of the dimming film 18. The thickness of the second sub-layer 122 is the same as or approximately the same as the thickness of the dimming film 18, so as to avoid the thickness difference between the dimming film 18 and the second sub-layer 122 causing appearance defects (such as bubbles) of the glass 10. It can also be understood that the dimming film 18 is embedded in the bonding layer 12, the second sub-layer 122 surrounds the edges of the dimming film 18, and the first sub-layer 121 and the third sub-layer 123 sandwich the dimming film 18 and the second sub-layer 122.

[0076] In this embodiment, the outer glass plate 11 and the inner glass plate 13 are sandwiched with a three-layer structure and a dimming film 18, so that the dimming film 18, the outer glass plate 11, and the inner glass plate 13 are fixedly connected by the adhesive layer 12. Along the thickness direction of the glass 10, the projection of the pattern layer 16 is completely located within the dimming film 18.

[0077] In this embodiment, when the dimming film 18 is powered, it is in a first state, and the overall visible light transmittance of the outer layer structure Q1 of the glass 10 and the dimming film 18 is greater than or equal to 10% and less than or equal to 20%. When the dimming film 18 is powered off, it is in a second state, and the overall visible light transmittance of the outer layer structure Q1 of the glass 10 and the dimming film 18 is greater than or equal to 0.2% and less than or equal to 2%. When the dimming film 18 is powered off and the light source 22 is powered on, the visible light transmittance of the dimming film 18 is low. With the dimming film 18 as the display background, the pattern shape of the pattern layer 16 is displayed more clearly, enhancing the ambient light display effect of the glass 10.

[0078] It should be noted that the first sub-layer 121, the second sub-layer 122, the third sub-layer 123, and the dimming film 18 can be formed into an integral structure before the glass 10 is assembled, or they can be separate structures before the glass 10 is assembled and then formed into an integral structure after the assembly. This application does not specify this. In addition, in this embodiment, the same content as in the first embodiment above is not repeated here.

[0079] See also Figure 5 , Figure 5 for Figure 1 FIG. 1 is a schematic exploded cross-sectional view of a partial structure of a fourth embodiment of a vehicle glass assembly.

[0080] This embodiment differs from the structure of the glass assembly 100 in the third embodiment in that the heat-reflecting layer 14 and transmittance-adjusting layer 15 of the film structure 17 of the glass 10 are integrated into a single structure. The structure and formation process of the film structure 17 in this embodiment can be referenced to that of the second embodiment, and will not be further described in detail in this embodiment. Furthermore, details in this embodiment that are identical to those in the third embodiment will not be further described.

[0081] In this application, Figure 2The glass 10 is shown as an example, by selecting different outer layer structures Q1 and different bonding layers 12 for the glass 10, and testing the glass 10, the visible light transmittance TL1 and the thermal insulation index Tir1 of the outer layer structure Q1, the visible light transmittance TL2 and the thermal insulation index Tir2 of the inner layer structure Q2, the visible light transmittance TL of the glass 10 itself, the solar energy reflectance RE of the outer layer structure Q1, the ratio of the visible light transmittance TL1 and the visible light transmittance TL2, the ratio of the thermal insulation index Tir1 and the thermal insulation index Tir2 are measured, and the data of the above tests are recorded in Table 1, to obtain the ratio of the visible light transmittance TL1 and the visible light transmittance TL2, the ratio of the thermal insulation index Tir1 and the thermal insulation index Tir2.

[0082] Table 1: Test structure of the glass 10 of Comparative Examples 1-4 and Example 1-3

[0083]

[0084] In Table 1, the relevant optical index parameters are detected according to the ISO 9050 standard, 2.1C represents that the outer glass plate 11 is a transparent glass plate with a thickness of 2.1 mm, silver plating represents that the heat reflecting layer 14 containing a metal silver layer is arranged on the outer glass plate 11, 0.76C represents a transparent thermoplastic film with a thickness of 0.76 mm, 2% PVB represents that the bonding layer 12 is a PVB film with a thickness of 0.76 mm and a visible light transmittance of 2%, 5% PVB represents that the bonding layer 12 is a PVB film with a thickness of 0.76 mm and a visible light transmittance of 5%, 8% represents that the bonding layer 12 is a PVB film with a thickness of 0.76 mm and a visible light transmittance of 8%, and 2.1SC represents an ultra-white glass with a thickness of 2.1 mm.

[0085] From Table 1, it can be seen that:

[0086] The outer structure Q1 of Comparative Example 1-3 does not have the transmittance adjusting layer 15, the bonding layer 12 of Comparative Example 1-3 is set to have different visible light transmittance, and the visible light transmittance of the bonding layer 12 of Comparative Example 1-3 is all low. The measured visible light transmittance TL1 of the outer structure Q1 of Comparative Example 1-3 is much greater than the visible light transmittance TL1 of the outer structure Q1 of Example 1-3, and the heat insulation index Tir1 of the outer structure Q1 of Comparative Example 1-3 is much greater than the heat insulation index Tir1 of the outer structure Q1 of Example 1-3. Therefore, the ratio of the visible light transmittance TL1 of the outer structure Q1 to the visible light transmittance TL2 of the inner structure Q2 of Comparative Example 1-3 is much greater than the ratio of the visible light transmittance TL1 of the outer structure Q1 to the visible light transmittance TL2 of the inner structure Q2 of Example 1-3, and the ratio of the heat insulation index Tir1 of the outer structure Q1 to the heat insulation index Tir2 of the inner glass of Comparative Example 1-3 is much greater than the ratio of the heat insulation index Tir1 of the outer structure Q1 to the heat insulation index Tir2 of the inner glass of Example 1-3. It can be known that, in the present example, the bonding layer 12 with high visible light transmittance is selected, and the film layer structure 17 including the transmittance adjusting layer 15 with low visible light transmittance is selected, which can greatly reduce the visible light transmittance and the heat insulation index of the outer structure Q1 compared with the prior art bonding layer with low visible light transmittance.

[0087] The outer structure Q1 of Comparative Example 4 does not have the heat reflection layer 14 compared with Example 1-3, and the measured heat insulation index of the outer structure Q1 of Comparative Example 4 is much greater than the heat insulation index of the outer structure Q1 of Example 1-3. It can be known that, in the present example, the film layer structure 17 including the heat reflection layer 14 and the transmittance adjusting layer 15 is arranged on the outer glass plate 11, which can reduce the heat insulation index of the outer structure Q1 to a certain extent compared with the prior art transmittance adjusting layer arranged on the outer glass plate 11.

[0088] Please refer to Figure 6 , Figure 6 for Figure 1 the bottom view of the glass assembly of the vehicle.

[0089] By selecting three groups of different structures of glass 10, each group including two glass 10 with the same structure, a pattern layer 16 is arranged on the third surface 131 of the inner glass sheet 13 of each group of glass 10, and an atmosphere lamp structure 20 is arranged on the fourth surface 132 of the inner glass sheet 13. Among them, the pattern shape of the pattern layer 16 is arranged as a plurality of patterns O in the shape of a circle arranged in a matrix. The plurality of patterns O is arranged in twenty-two rows, and the circle size of each row of patterns O is the same. For the sake of description, the row of patterns O adjacent to the single side edge of the width direction of the pattern layer 16 is the first row, and the direction from the two side edges of the width direction of the pattern layer 16 to the middle of the pattern layer 16 is named as the second row, the third row, and so on, and the row of patterns O adjacent to the middle axis F-F of the width direction of the pattern layer 16 is the eleventh row. That is, the pattern shape is symmetrically arranged about the middle axis F-F of the width direction of the pattern layer 16. From the first row to the eleventh row, the plurality of patterns O in each row changes from dense to sparse, and the circle size of the pattern O gradually decreases. The interval between the pattern O of the first row of the glass 10 of each group and the light emitting source 22 is 30 mm.

[0090] The pattern brightness of the plurality of patterns O from the first row to the eleventh row on the same horizontal line of the three groups of glass 10 is measured, and the above measured results are recorded in Table 2. In Table 2, 1 point corresponds to one pattern O of the first row, 2 points correspond to one pattern O of the second row, and so on. By determining the pattern brightness of the pattern O of 1 point to 11 point measured above, the atmosphere lamp display effect of the glass 10 is determined.

[0091] Table 2: Pattern O brightness of glass 10 of sample groups A-C

[0092]

[0093]

[0094] Among them, the glass 10 of the sample group A includes a glass sheet with a thickness of 2.1 mm and in the form of transparency, a transmittance adjusting layer 15, a PVB film with a thickness of 0.76 mm and in the form of transparency, and an ultra-white glass with a thickness of 2.1 mm; the glass 10 of the sample group B includes a glass sheet with a thickness of 2.1 mm and in the form of transparency, a heat reflecting layer 14, a PVB film with a thickness of 0.76 mm and a visible light transmittance of 5% (i.e. a traditional gray film), and an ultra-white glass with a thickness of 2.1 mm; and the glass 10 of the sample group C includes a glass sheet with a thickness of 2.1 mm and in the form of transparency, a heat reflecting layer 14, a PVB film with a thickness of 0.76 mm and a visible light transmittance of 5%, a PVB film with a thickness of 0.38 mm, and an ultra-white glass with a thickness of 2.1 mm.

[0095] It can be known from Table 2 that:

[0096] In sample group A-C, the pattern brightness of pattern O gradually decreases from 1 to 11.

[0097] In sample group B, the traditional gray film is used, and the pattern brightness decreases by more than or equal to 15% between two adjacent points from the 4th point (i.e., at a position where the distance to the light source 22 of the ambient light structure 20 is about 100 mm). In the range where the distance to the light source 22 of the ambient light structure 20 is about 100-290 mm, the decrease in pattern brightness between two adjacent points is maintained between 15%-31%, and thus, it can be seen that the glass 10 uses the gray film to affect the propagation of light, i.e., to affect the ambient light display effect of the glass 10.

[0098] The glass 10 in sample group C is based on the structure of the glass 10 in sample group B, and a transparent PVB film with a thickness of 0.38 mm is added between the gray film and the pattern layer 16. The image brightness of the glass 10 in sample group C is increased by 6% compared to the glass 10 in sample group B, i.e., the sample group C adds a transparent PVB film, and the ambient light display effect is improved but not significantly improved.

[0099] The above describes the embodiments of the present application in detail, and the specific examples are applied to explain the principles and implementation modes of the present application. The above description of the embodiments is only used to help understand the method of the present application and its core idea; at the same time, for those skilled in the art, according to the idea of the present application, the specific implementation mode and application range will be changed, and the above description should not be understood as a limitation of the present application.

Claims

1. A glass, characterized in that: The glass comprises: An outer layer structure, comprising an outer glass plate and a film layer structure for adjusting transmittance and reflectivity, wherein the film layer structure is provided on one surface of the outer glass plate in a thickness direction; An inner layer structure, the inner layer structure comprising an inner glass plate and a pattern layer, the pattern layer being disposed on one surface of the inner glass plate in a thickness direction, the pattern layer having a pattern shape; Adhesive layer; Along the thickness direction of the glass, the outer layer structure, the bonding layer and the inner layer structure are stacked and connected in sequence, and the film layer structure is located between the outer glass plate and the bonding layer; The pattern layer is located between the inner glass plate and the bonding layer, or the pattern layer is located on the side of the inner glass plate facing away from the bonding layer; Wherein, the visible light transmittance of the outer layer structure is lower than the visible light transmittance of the inner layer structure.

2. The glass according to claim 1, wherein The film layer structure includes a heat reflection layer and a transmittance adjustment layer, and the transmittance adjustment layer and the heat reflection layer are an integral structure or a separate structure.

3. The glass according to claim 1 or 2, characterized in that The ratio of the visible light transmittance of the outer layer structure to the visible light transmittance of the inner layer structure is less than or equal to 0.

15.

4. The glass according to claim 1 or 2, characterized in that The thermal insulation index of the outer layer structure is less than the thermal insulation index of the inner layer structure, and the ratio of the thermal insulation index of the outer layer structure to the thermal insulation index of the inner layer structure is less than or equal to 0.

1.

5. The glass according to claim 1 or 2, characterized in that The solar energy reflectivity of the heat reflection layer is greater than or equal to 28%.

6. The glass according to claim 1 or 2, characterized in that: The glass further includes a second heat-insulating layer, which is arranged on a surface of the inner glass plate facing away from the bonding layer, and the emissivity of the second heat-insulating layer is less than or equal to 0.

3.

7. The glass according to claim 6, characterized in that The visible light transmittance of the outer glass plate is greater than or equal to 88%.

8. The glass according to claim 1 or 2, characterized in that The adhesive layer is transparent, and its visible light transmittance is greater than or equal to 40%.

9. The glass according to claim 1 or 2, characterized in that: The inner glass plate is made of ultra-white glass.

10. The glass according to claim 6, wherein The glass further includes a dimming film, and the dimming film can be electrically connected to an external power source; The bonding layer includes a first sublayer, a second sublayer, and a third sublayer. The first sublayer and the third sublayer are respectively located on opposite sides of the dimming film in the thickness direction and sandwich the dimming film. The second sublayer is filled between the first sublayer and the third sublayer and surrounds the edge of the dimming film. Along the thickness direction of the glass, the projection of the pattern layer is located within the dimming film.

11. The glass according to claim 10, characterized in that The visible light transmittance of the first sub-layer is less than or equal to 40%, and the visible light transmittance of the third sub-layer is greater than or equal to 40%.

12. The glass according to claim 10, wherein The thickness of the second sub-layer is the same as the thickness of the dimming film.

13. The glass according to claim 10, wherein: When the dimming film is in the first state, the overall visible light transmittance of the outer layer structure and the dimming film is greater than or equal to 10% and less than or equal to 20%; When the dimming film is in the second state, the overall visible light transmittance of the outer layer structure and the dimming film is greater than or equal to 0.2% and less than or equal to 2%.

14. A glass assembly, characterized in that: The glass assembly includes an ambient light structure and the glass according to any one of claims 1 to 13, wherein the ambient light structure is arranged on the surface of the inner glass plate facing away from the pattern layer and close to the edge of the glass.

15. A means of transport, characterized in that: The vehicle includes a tool body, an external power supply and a glass assembly as described in claim 14, wherein the glass assembly is mounted on the tool body, the atmosphere light structure is electrically connected to the external power supply, and the light source of the atmosphere light structure emits light toward the inner glass panel after being powered on.

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