Laminated glass, preparation method thereof and vehicle

Abstract

The invention provides laminated glass, a preparation method thereof and a vehicle. The laminated glass comprises a first glass plate, a first bonding layer, a protective layer, a second bonding layer and a second glass plate which are sequentially stacked, the first glass plate has surface compressive stress CS, the surface compressive stress CS meets the following condition that CS is larger than or equal to 90 MPa, and the first glass plate, the first bonding layer and the protective layer are used for forming a strength protection structure. The strength protection structure is used for protecting the second glass plate; the laminated glass further comprises a functional layer which is arranged between the first glass plate and the protective layer. By forming the strength protection structure, the structural strength of the laminated glass is improved, and the probability that the laminated glass is broken due to impact of foreign objects is reduced; the laminated glass is also provided with a protective layer with an anti-cracking function, so that the probability that the laminated glass is cracked due to collision of foreign objects is reduced, the hidden danger of injury to passengers in the vehicle caused by cracking of the laminated glass is reduced, and the safety performance of the vehicle is improved.

Description

Technical Field

[0001] This application belongs to the technical field of glass, and particularly relates to laminated glass, its preparation method, and vehicles. Background Art

[0002] More and more vehicles are equipped with panoramic sunroof glass, and the functions of the sunroof are diversified, such as sunshade curtain-free, dimming sunroof, atmosphere light sunroof, etc. As the specifications of the sunroof glass are getting larger and the functions are getting more, the attention to the safety performance of the sunroof glass has gradually increased. However, the sunroof glass in related technologies is still prone to cracking, which is likely to cause injuries to users and reduces the safety performance of the vehicle. Summary of the Invention

[0003] In view of this, in the first aspect of this application, a laminated glass is provided. The laminated glass includes a first glass plate, a first adhesive layer, a protective layer, a second adhesive layer, and a second glass plate that are sequentially stacked. The first glass plate has a surface compressive stress CS, and the surface compressive stress CS satisfies the following condition: CS≥90MPa. The first glass plate, the first adhesive layer, and the protective layer are used to form a strength protection structure, and the strength protection structure is used to protect the second glass plate;

[0004] The laminated glass further includes a functional layer, and the functional layer is disposed between the first glass plate and the protective layer.

[0005] Wherein, the width of the protective layer is less than or equal to the width of the first glass plate, and the width of the protective layer is greater than the width of the second glass plate.

[0006] Wherein, the width of the first glass plate is equal to the width of the first adhesive layer, and the width of the second glass plate is equal to the width of the second adhesive layer; the width of the first adhesive layer is greater than the width of the protective layer, and the width of the second adhesive layer is less than the width of the protective layer.

[0007] Wherein, the laminated glass further includes a seal, and the seal is disposed on the sides of the first glass plate, the first adhesive layer, and the protective layer. The seal is also disposed on the surface of the protective layer facing away from the first glass plate.

[0008] Wherein, the seal includes a first part and a second part connected to each other. The first part covers the sides of the first glass plate, the first adhesive layer, and the protective layer; the second part covers the surface of the protective layer facing away from the first glass plate, and the second part covers the peripheral part of the protective layer.

[0009] Wherein, the second part is spaced apart from the second adhesive layer, and the second part is spaced apart from the second glass plate.

[0010] Wherein, in the extending direction from the edge of the laminated glass to the center of the laminated glass, the size range of the seal covering the surface of the protective layer facing away from the first glass plate is 10 mm to 100 mm.

[0011] Wherein, the functional layer includes a heat reflection layer, and the heat reflection layer is disposed on the side of the first glass plate facing the first adhesive layer.

[0012] Wherein, the functional layer includes a dimming functional layer, and the dimming functional layer is disposed on the first adhesive layer.

[0013] Wherein, the first adhesive layer includes a first adhesive sub-layer and a second adhesive sub-layer. In the stacking direction of the laminated glass, the first glass plate, the first adhesive sub-layer, the dimming functional layer, the second adhesive sub-layer, and the protective layer are stacked in sequence.

[0014] Wherein, when the dimming functional layer is in the powered-on state, the laminated glass has a visible light transmittance TL 1 , and the visible light transmittance TL 1 satisfies the following condition: 5% < TL 1 ≤ 20%;

[0015] When the dimming functional layer is in the powered-off state, the laminated glass has a visible light transmittance TL 2 , and the visible light transmittance TL 2 satisfies the following condition: 0.1% ≤ TL 2 ≤ 5%.

[0016] Wherein, the laminated glass further includes a light-emitting component, and the light-emitting component includes a light source and a light guide. Both the light source and the light guide are disposed on the side edge of the second glass plate. The light source is connected to the light guide, and the light source is used for emitting light, and the light guide is used for guiding the light emitted by the light source to the second glass plate.

[0017] Wherein, the light guide abuts against the side edge of the second glass plate, and the light source is disposed at the end of the light guide away from the side edge of the second glass plate.

[0018] Wherein, the light-emitting component further includes a display pattern layer, and the display pattern layer is disposed on the second glass plate;

[0019] The light-emitting component further includes a cover body. One end of the cover body is connected to the protective layer, and the other end is connected to the side of the second glass plate facing away from the first glass plate. The cover body forms an accommodation cavity, and the light source and the light guide are disposed in the accommodation cavity.

[0020] Wherein, the laminated glass further includes a low-emissivity layer, and the low-emissivity layer is disposed on a side of the second glass plate facing away from the second adhesive layer.

[0021] The second aspect of the present application provides a method for manufacturing the laminated glass provided in the first aspect of the present application. The manufacturing method includes:

[0022] Providing a first glass plate, a first adhesive layer, a protective layer, and a functional layer. The first glass plate has a surface compressive stress CS, and the surface compressive stress CS satisfies the following condition: CS ≥ 90 MPa;

[0023] Stacking the first glass plate, the first adhesive layer, the functional layer, and the protective layer in sequence, and performing a first laminating process to obtain a first laminated group;

[0024] Providing a second adhesive layer and a second glass plate;

[0025] Stacking the first laminated group, the second adhesive layer, and the second glass plate in sequence, and performing a second laminating process to obtain the laminated glass provided in the first aspect of the present application.

[0026] Wherein, the functional layer includes a dimming functional layer, and the dimming functional layer is disposed on the first adhesive layer. In the step of performing the first laminating process, it further includes:

[0027] Providing a first adhesive sub-layer and a second adhesive sub-layer;

[0028] Controlling the first glass plate, the first adhesive sub-layer, the dimming functional layer, the second adhesive sub-layer, and the protective layer to be stacked in sequence, and performing the first laminating process; wherein, the first adhesive sub-layer and the second adhesive sub-layer constitute the first adhesive layer.

[0029] Wherein, the functional layer includes a heat-reflective layer. In the step of performing the first laminating process, it further includes:

[0030] Forming a heat-reflective layer disposed on one side of the first glass plate;

[0031] Controlling the first glass plate, the first adhesive layer, the functional layer, and the protective layer to be stacked in sequence, and performing the first laminating process; wherein, the heat-reflective layer is disposed on a side of the first glass plate facing the first adhesive layer.

[0032] Wherein, in the step of performing the second laminating process, it further includes:

[0033] Forming a low-emissivity layer disposed on one side of the second glass plate;

[0034] Control the first lamination group, the second adhesive layer, and the second glass plate to be stacked in sequence, and perform the second lamination process; wherein, the low-emissivity layer is disposed on a side of the second glass plate facing away from the second adhesive layer.

[0035] The third aspect of the present application provides a vehicle, which includes a vehicle body and the laminated glass provided in the first aspect of the present application, and the laminated glass is disposed at an opening of the vehicle body.

[0036] The present application provides laminated glass, a preparation method thereof, and a vehicle. By forming a strength protection structure, the structural strength of the laminated glass is improved, and the probability of the laminated glass being broken due to an external object impact is reduced; moreover, the present application is also provided with a protective layer having an anti-breakage function, which not only further reduces the probability of the laminated glass being broken due to an external object impact, but also reduces the potential harm to the vehicle occupants caused by the breakage of the laminated glass, thereby improving the safety performance of the vehicle. Description of the Drawings

[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required to be used in the embodiments of the present application will be described below.

[0038] Figure 1 It is a schematic structural diagram of laminated glass provided in an embodiment of the present application.

[0039] Figure 2 It is a schematic structural diagram of laminated glass provided with a seal in an embodiment of the present application.

[0040] Figure 3 It is a schematic structural diagram of laminated glass provided with a heat-reflective layer in an embodiment of the present application.

[0041] Figure 4 It is a schematic structural diagram of laminated glass provided with a dimming functional layer in an embodiment of the present application.

[0042] Figure 5 It is a schematic structural diagram of laminated glass provided with a light-emitting component in an embodiment of the present application.

[0043] Figure 6 It is a schematic structural diagram of laminated glass provided with a low-emissivity layer in an embodiment of the present application.

[0044] Figure 7 It is a schematic structural diagram of laminated glass provided in another embodiment of the present application.

[0045] Figure 8 It is a graph of performance parameters of laminated glass in Comparative Examples 1-4 and Examples 1-3.

[0046] Reference numeral description: laminated glass 1, first glass plate 11, first adhesive layer 12, first sub - adhesive layer 121, second sub - adhesive layer 122, sealed sub - adhesive layer 123, protective layer 13, second adhesive layer 14, second glass plate 15, seal 16, body adhesive 161, heat - reflective layer 21, dimming functional layer 22, light - emitting assembly 23, light source 231, light - guiding member 232, display pattern layer 233, cover 234, low - emissivity layer 24. Detailed implementation manners

[0047] The following are the preferred implementation manners of the present application. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present application, several improvements and refinements can be made, and these improvements and refinements are also regarded as the protection scope of the present application.

[0048] Please refer to Figure 1 and Figure 4 The present application provides a laminated glass 1. The laminated glass 1 includes a first glass plate 11, a first adhesive layer 12, a protective layer 13, a second adhesive layer 14, and a second glass plate 15 that are sequentially stacked. The first glass plate 11 has a surface compressive stress CS, and the surface compressive stress CS satisfies the following condition: CS≥90 MPa. The protective layer 13 is used to block the broken first glass plate 11.

[0049] The laminated glass 1 further includes a functional layer, and the functional layer is disposed between the first glass plate 11 and the protective layer 13.

[0050] When the laminated glass 1 is installed on a vehicle, the laminated glass 1 can be used as a sunroof glass, or a front windshield, or a rear windshield, or a side window glass, or a corner window glass, so as to provide more display - scene applications for the vehicle. Preferably, it is used as a sunroof glass.

[0051] Specifically, the first glass plate 11 serves as the outer glass plate of the laminated glass 1. The first glass plate 11 has a first surface and a second surface. The first surface faces away from the first adhesive layer 12 and contacts the external environment of the vehicle, and the second surface is connected to the first adhesive layer 12 and is close to the protective layer 13. The second glass plate 15 serves as the inner glass plate of the laminated glass 1. The second glass plate 15 has a third surface and a fourth surface. The third surface is connected to the second adhesive layer 14 and is close to the protective layer 13, and the fourth surface faces away from the second adhesive layer 14 and contacts the internal environment of the vehicle. The protective layer 13 is disposed between the first adhesive layer 12 and the second adhesive layer 14. Optionally, the first adhesive layer 12 adhesively connects the first glass plate 11 and the protective layer 13, and the second adhesive layer 14 adhesively connects the second glass plate 15 and the protective layer 13.

[0052] Among them, the physical thickness of the first glass plate 11 is 1 mm to 5 mm. Specifically, examples can be 1 mm, or 1.5 mm, or 2 mm, or 2.5 mm, or 3 mm, or 3.5 mm, or 4 mm, or 4.5 mm, or 5 mm, etc. The visible light transmittance of the first glass plate 11 is ≥70%, or ≥80%, or ≥90%. Preferably, the visible light transmittance of the first glass plate 11 is ≥88%. Specifically, examples can be 88%, or 91%, or 93%, or 95%, or 97%, etc. By limiting the visible light transmittance of the first glass plate 11 to be greater than or equal to 88%, the heat insulation and reflection of the laminated glass 1 can be increased, and the comfort inside the vehicle can be improved.

[0053] The first glass plate 11 is generally made of inorganic glass and / or organic glass materials, such as soda-lime glass, borosilicate glass, aluminosilicate glass, polymethyl methacrylate, polycarbonate, etc.; preferably soda-lime glass, and more preferably ultra-clear glass (extra-clear glass). The total iron content (calculated as Fe 2 O 3 in the ultra-clear glass is less than or equal to 0.0015%, even less than or equal to 0.01%, and even less than or equal to 50 PPM. The visible light transmittance of the ultra-clear glass is 90% to 95%. For example, the first glass plate 11 can be a transparent glass with a thickness of 3.15 mm and a visible light transmittance of 89%, or can be a green glass with a thickness of 1.1 mm and a visible light transmittance of 90%.

[0054] The physical thickness of the second glass plate 15 is 0.8 mm to 2.5 mm. Specifically, examples can be 0.8 mm, or 1 mm, or 1.3 mm, or 1.5 mm, or 1.8 mm, or 2 mm, or 2.5 mm, etc. The visible light transmittance of the second glass plate 15 is ≥70%, or ≥80%, or ≥85%, or ≥90%. The second glass plate 15 is generally made of inorganic glass and / or organic glass materials, such as soda-lime glass, borosilicate glass, aluminosilicate glass, polymethyl methacrylate, polycarbonate, etc.; preferably soda-lime glass, and more preferably ultra-clear glass (extra-clear glass). The second glass plate 15 is a transparent glass, ultra-clear glass or lightly tinted glass; the total iron content (calculated as Fe 2 O 3 in the transparent glass (standard white glass) is less than or equal to 0.1%, even less than or equal to 0.05%, and the visible light transmittance of the transparent glass is 80% to 95%. The total iron content (calculated as Fe 2 O 3The content of the impurity (calculated as) is less than or equal to 0.015%, even less than or equal to 0.01%, and even less than or equal to 50 PPM. The visible light transmittance of the super transparent glass is 90% - 95%. For example, the second glass plate 15 can be a transparent glass with a thickness of 2.1 mm and a visible light transmittance of 89%, or can be a green glass with a thickness of 1.6 mm and a visible light transmittance of 83%, or a green glass with a thickness of 2.1 mm and a visible light transmittance of 80%.

[0055] The first adhesive layer 12 and the second adhesive layer 14 can be a transparent thermoplastic polymer film or a lightly colored thermoplastic polymer film. Specifically, the first adhesive layer 12 and the second adhesive layer 14 are thermoplastic materials, such as any one or a combination of polyvinyl alcohol, polycarbonate, ethylene vinyl acetate, thermoplastic polyurethane, polyacetal resin, polybutylene terephthalate, ethylene vinyl acetate, polyethylene naphthalate, polyvinyl chloride, polyvinyl fluoride, polyacrylate, polymethyl methacrylate, and polyurethane.

[0056] Optionally, the visible light transmittance of the first adhesive layer 12 and the second adhesive layer 14 is ≥70%, or ≥80%, or ≥85%. When the first adhesive layer 12 and the second adhesive layer 14 are transparent thermoplastic polymers, the visible light transmittance of the transparent thermoplastic polymer is greater than or equal to 85%. For example, the visible light transmittance of the first adhesive layer 12 and the second adhesive layer 14 can be, but not limited to, 85%, or 90%, or 95%, etc. Optionally, the first adhesive layer 12 and the second adhesive layer 14 can be a single-layer structure or a multi-layer structure. Examples of the multi-layer structure can include a double-layer structure, a three-layer structure, a four-layer structure, a five-layer structure, etc. The first adhesive layer 12 and the second adhesive layer 14 can also have other functions. For example, adding an infrared absorber to have a sunscreen or heat insulation function, or adding an ultraviolet absorber to have an ultraviolet blocking function, or the plasticizer content of at least one layer of the multi-layer structure is higher to have a sound insulation function.

[0057] The physical thickness of the first adhesive layer 12 is 0.2 mm - 1 mm. Specifically, it can be, for example, 0.2 mm, or 0.38 mm, or 0.76 mm, or 1 mm, etc. The physical thickness of the second adhesive layer 14 ≤0.5 mm, preferably 0.38 mm.

[0058] In this embodiment, by limiting the physical thickness of the first adhesive layer 12 and the second adhesive layer 14, the total physical thickness of multiple adhesive layers is controlled, which is more beneficial to the forming process of different products.

[0059] The functional layer includes, but is not limited to, one or a combination of two or more of a dimming functional layer, a heat-reflecting layer, a color-changing layer, a light-guiding layer, a display layer, etc. The functional layer can be set according to the needs of the product. Optionally, the functional layer is provided on the surface of the first glass plate 11 facing the first adhesive layer 12; alternatively, the functional layer is provided in the first adhesive layer 12; or, the functional layer is provided on the surface of the protective layer 13 facing the first adhesive layer 12.

[0060] The first glass plate 11 has a surface compressive stress CS. CS (Compressive Stress) refers to the compressive stress at the surface of the first glass plate 11. The surface compressive stress CS satisfies the following condition: CS≥90 MPa. Specifically, examples can be 90 MPa, or 100 MPa, or 150 MPa, or 200 MPa, or 250 MPa, or 300 MPa, or 350 MPa, or 400 MPa, or 450 MPa, or 500 MPa, or 550 MPa, etc. Among them, during the production and cooling process of the glass, a permanent residual compressive stress is formed due to the temperature difference generated by the different cooling rates between the outer surface of the glass and the center of the glass thickness. The surface compressive stress can be used to characterize the glass strength, that is, an evaluation index for resisting external force impact. The higher its value, the stronger the ability of the glass to resist external object impact. In this embodiment, by using the first glass plate 11 with a high surface compressive stress, the structural strength of the laminated glass 1 is improved, and the probability of the laminated glass 1 being broken due to external object impact is reduced.

[0061] The protective layer 13 can be used to block the broken first glass plate 11 to prevent or mitigate the harm to the vehicle interior users caused by the first glass plate 11 and external objects; and, the setting of the protective layer 13 is beneficial to improving the structural strength of the laminated glass 1, and further reduces the probability of the laminated glass 1 being broken due to external object impact. Among them, the protective layer 13 can adopt a polyester film material. For example, the material of the protective layer 13 is selected from at least one of PVC (polyvinyl chloride), PP (polypropylene), PET (polyethylene terephthalate), PA (polyamide), BOPET (biaxially oriented polyethylene terephthalate), PMMA (polymethyl methacrylate). The physical thickness of the protective layer 13 is 0.025 mm to 0.2 mm. Specifically, examples can be 0.025 mm, or 0.05 mm, or 0.075 mm, or 0.01 mm, or 0.0125 mm, or 0.015 mm, or 0.0175 mm, or 0.2 mm, etc.; preferably, the physical thickness of the protective layer 13 is 0.05 mm to 0.125 mm.

[0062] In one embodiment, the width of the protective layer 13 is less than or equal to the width of the first glass plate 11, and the width of the protective layer 13 is greater than the width of the second glass plate 15. In other words, the orthographic projection of the protective layer 13 on the first glass plate 11 covers the orthographic projection of the second glass plate 15 on the first glass plate 11. More specifically, the width of the first glass plate 11 is greater than the width of the second glass plate 15, so as to facilitate the arrangement of functional components on the side of the second glass plate 15.

[0063] Generally in a vehicle, a body part is provided on the part where the first glass plate 11 protrudes from the second glass plate 15, and a functional component is provided on the side of the second glass plate 15, etc. The part where the first glass plate 11 protrudes from the second glass plate 15 can be arranged corresponding to the top of the vehicle body sheet metal, and the second glass plate 15 corresponds to the users inside the vehicle.

[0064] In this embodiment, by defining the width relationship among the protective layer 13, the first glass plate 11, and the second glass plate 15, the protective layer 13 can be in full contact with the first glass plate 11, and the strength protection structure can better protect the second glass plate 15, which is beneficial to preventing more glass fragments from hurting the users inside the vehicle, better preventing or slowing down the harm to the users inside the vehicle caused by the first glass plate 11 and external objects, better protecting the users inside the vehicle, and thus improving the safety performance of the vehicle.

[0065] Furthermore, the width of the first glass plate 11 is equal to the width of the first adhesive layer 12, and the width of the second glass plate 15 is equal to the width of the second adhesive layer 14; the width of the first adhesive layer 12 is greater than the width of the protective layer 13, and the width of the second adhesive layer 14 is less than the width of the protective layer 13.

[0066] The first glass plate 11, the first adhesive layer 12, the protective layer 13, the second adhesive layer 14, and the second glass plate 15 form a trapezoid-like structure, which is beneficial to slowing down the impact force of external objects on the first glass plate 11 and further reducing the probability of the laminated glass breaking due to external object impact.

[0067] Furthermore, the second adhesive layer 14 is arranged at the center of the protective layer 13 or adjacent to the center of the protective layer 13, and the second glass plate 15 faces the second adhesive layer 14.

[0068] Preferably, the second glass plate 15 is arranged directly corresponding to the second adhesive layer 14; specifically, the center of the second glass plate 15 is arranged with the center of the second adhesive layer 14, and the width of the second glass plate 15 is equal to that of the second adhesive layer 14. For example, the second glass plate 15 is arranged with its edge aligned with the second adhesive layer 14.

[0069] The second adhesive layer 14 and the second glass plate 15 are arranged corresponding to or adjacent to the center of the protective layer 13, and are arranged avoiding the periphery of the protective layer 13, which is more conducive to the protective layer 13 preventing more glass fragments from hurting the users inside the vehicle, and is more conducive to the strength protection structure better protecting the second glass plate 15.

[0070] Please refer to Figure 2 , in an embodiment, the laminated glass 1 further includes a seal 16, and the seal 16 is arranged on the sides of the first glass plate 11, the first adhesive layer 12, and the protective layer 13, and the seal 16 is also arranged on the surface of the protective layer 13 facing away from the first glass plate 11.

[0071] Specifically, the seal 16 includes a first part and a second part connected to each other. The first part covers the sides of the first glass plate 11, the first adhesive layer 12, and the protective layer 13; the second part covers the surface of the protective layer 13 facing away from the first glass plate 11, and the second part covers the peripheral part of the protective layer 13.

[0072] In this embodiment, by providing the seal 16 composed of the first part and the second part, the connection performance of the layer structure between the strength protection structures can be further improved. Under the cooperation of the seal 16 and the strength protection structure, the strength of the strength protection structure is improved, the protection performance of the second glass plate 15 is improved, and the safety performance of the vehicle is further improved; the seal 16 can also prevent glass fragments from hurting the users inside the vehicle, and better prevent or slow down the damage of the first glass plate 11 and external objects to the users inside the vehicle, thereby improving the safety performance of the vehicle.

[0073] Furthermore, the second part is arranged at an interval from the second adhesive layer 14, and the second part is arranged at an interval from the second glass plate 15.

[0074] In this embodiment, by having an interval between the second part and the second adhesive layer 14 and the second glass plate 15, when an external object impacts the strength protection structure, it can be avoided that the second glass plate 15 is affected through the seal 16, and it can be avoided that the seal 16 pulls the second glass plate 15 under the impact of an external object, thereby further improving the protection performance of the second glass plate 15 and further improving the safety performance of the vehicle.

[0075] The seal 16 can jointly seal the first adhesive layer 12 with the protective layer 13 to avoid the first adhesive layer 12 being damaged by the environment and improve the reliability of the laminated glass 1. Optionally, the seal 16 is arranged around the periphery of the laminated glass 1. The seal 16 can adopt an injection molding process or an adhesive bonding process, and the material of the seal 16 can be selected from plastic materials, for example, injection molding with PU material, or injection molding with PVC material, etc., and EPDM can also be used.

[0076] Optionally, the seal 16 is also disposed on the surface of the first glass plate 11 facing away from the protective layer 13. Specifically, the seal 16 further includes a third portion connected to the first portion. The third portion and the second portion are disposed on opposite sides of the first portion. The third portion covers the surface of the first glass plate 11 facing away from the protective layer 13, and the third portion covers the peripheral portion of the first glass plate 11.

[0077] In the extending direction from the edge of the laminated glass 1 to the center of the laminated glass 1, the size range of the seal 16 covering the surface of the protective layer 13 facing away from the first glass plate 11 is 10 mm to 100 mm. Specifically, examples can be 10 mm, or 20 mm, or 30 mm, or 40 mm, or 50 mm, or 60 mm, or 70 mm, or 80 mm, or 90 mm, or 100 mm, etc. In other words, the peripheral portion of the protective layer 13 coincides with the edge portion of the seal 16, and the size range of the overlapping portion is 10 mm to 100 mm.

[0078] In this embodiment, by providing the seal 16, the structural strength of the strength protection structure can be further increased, and the safety performance of the vehicle can be further improved. Moreover, the seal 16 can cooperate with the protective layer 13 to better prevent or mitigate the damage to the vehicle interior users caused by the first glass plate 11 and external objects, thereby improving the safety performance of the vehicle.

[0079] Moreover, the surface of the seal 16 facing away from the first glass plate 11 is used to accommodate the body adhesive 161, and the body adhesive 161 is used to bond body parts. The body parts can be body decorative parts, in-vehicle functional parts, structural parts cooperating with in-vehicle functional parts, etc. In this embodiment, by disposing the body adhesive 161 on the seal 16, it is possible to avoid disposing the body adhesive 161 on the first glass plate 11 or the protective layer 13, and avoid interference of the body parts with the first glass plate 11 or the protective layer 13, thereby improving the structural strength of the laminated glass 1 and the safety performance of the vehicle.

[0080] Please refer to Figure 3 , in one embodiment, the functional layer includes a heat reflection layer 21, and the heat reflection layer 21 is disposed on the side of the first glass plate 11 facing the first adhesive layer 12.

[0081] The heat-reflecting layer 21 is used to improve the heat insulation effect of the laminated glass 1, thereby enhancing the comfort inside the vehicle, so that the laminated glass 1 has the function of eliminating the sunshade curtain; when the first glass plate 11 and the second glass plate 15 are provided with functional layers, the heat-reflecting layer 21 can also protect the functional layers. The heat-reflecting layer 21 can also be understood as an infrared-reflecting layer. The heat-reflecting layer 21 is provided on the inner surface of the first glass plate 11. Specifically, the heat-reflecting layer 21 includes a metal functional layer, and the number of the metal functional layers is at least two, specifically, for example, two, or three, or four, etc.; a plurality of the metal functional layers are stacked; the material of the metal functional layer is selected from metals or alloys of at least one element among Ag, Au, Cu, Al, and Pt. For example, the metal layer is a silver-plated layer. The heat-reflecting layer 21 can be prepared by means such as PVD (Physical Vapor Deposition) or CVD (Chemical Vapor Deposition).

[0082] The laminated glass 1 has a solar energy reflectance RE, and the solar energy reflectance RE satisfies the following conditions: RE≥28%, specifically, for example, 28%, or 30%, or 35%, or 40%, or 45%, or 50%, etc.; preferably, the solar energy reflectance RE≥40%.

[0083] Moreover, the visible light transmittance of the first glass plate 11 can be limited to ≥88% to increase the heat insulation and reflection of the laminated glass 1 and further enhance the comfort inside the vehicle.

[0084] Please refer to Figure 4 , in another embodiment, the laminated glass 1 further includes a dimming functional layer 22, and the dimming functional layer 22 is provided on the first adhesive layer 12.

[0085] At different voltage values, the dimming functional layer 22 can have different visible light transmittances; further, at different voltage values, the dimming functional layer 22 can have different colors. Optionally, the material of the dimming functional layer 22 is selected from at least one of PDLC (Polymer Dispersed Liquid Crystal), SPD (Suspended Particle), and EC (Electrochromic). Further, the dimming functional layer 22 includes a plurality of liquid crystal units, and each liquid crystal unit can be controlled independently. For example, when using the material of the PDLC dimming functional layer 22, each liquid crystal unit is energized to change the visible light transmittance.

[0086] The dimming functional layer 22 has a light control function and can be adjusted by means of energization and power-off, so that the laminated glass 1 has a light controllable function. When the dimming functional layer 22 is in the energized state, as the voltage value applied to the dimming functional layer 22 changes, the dimming functional layer 22 has different visible light transmittances, so that the laminated glass 1 has different visible light transmittances to meet the requirements of visible light transmittance in multiple scenarios.

[0087] Specifically, when the dimming functional layer 22 is in the powered-on state, the laminated glass 1 has a visible light transmittance TL 1 , and the visible light transmittance TL 1 satisfies the following condition: 5% < TL 1 ≤ 20%, specifically, it can be, for example, 6%, or 8%, or 10%, or 12%, or 14%, or 16%, or 18%, or 20%, etc.

[0088] When the dimming functional layer 22 is in the powered-off state, the laminated glass 1 has a visible light transmittance TL 2 , and the visible light transmittance TL 2 satisfies the following condition: 0.1% ≤ TL 2 ≤ 5%, specifically, it can be, for example, 0.1%, or 0.3%, or 0.5%, or 0.8%, or 1%, or 1.2%, or 1.5%, or 1.8%, or 2%, or 2.5%, or 3%, or 3.5%, or 4%, or 4.5%, or 5%, etc.

[0089] Wherein, the first adhesive layer 12 includes a first adhesive sub-layer 121 and a second adhesive sub-layer 122. Along the lamination direction of the laminated glass 1, the first glass plate 11, the first adhesive sub-layer 121, the dimming functional layer 22, the second adhesive sub-layer 122, and the protective layer 13 are sequentially laminated.

[0090] The dimming functional layer 22 is disposed between the first adhesive sub-layer 121 and the second adhesive sub-layer 122. One side of the first adhesive sub-layer 121 is adhesively connected to the first glass plate 11, and the other side is adhesively connected to the dimming functional layer 22. One side of the second adhesive sub-layer 122 is adhesively connected to the dimming functional layer 22, and the other side is adhesively connected to the second glass plate 15.

[0091] Optionally, the physical thickness of the first adhesive sub-layer 121 ≤ 0.8 mm, preferably 0.38 mm; the physical thickness of the second adhesive sub-layer 122 ≥ 0.7 mm, preferably 0.76 mm.

[0092] Further optionally, the first adhesive layer 12 further includes a sealing adhesive sub-layer 123. The sealing adhesive sub-layer 123 is disposed between the first adhesive sub-layer 121 and the second adhesive sub-layer 122, and the sealing adhesive sub-layer 123 is disposed on the same layer as the dimming functional layer 22. Wherein, the physical thickness of the sealing adhesive sub-layer 123 is equal to the physical thickness of the dimming functional layer 22. The physical thickness of the sealing adhesive sub-layer 123 ≤ 0.5 mm, preferably 0.38 mm.

[0093] Please refer to Figure 5, in yet another embodiment, the laminated glass 1 further includes a lighting assembly 23, the lighting assembly 23 includes a light source 231 and a light guide 232, both the light source 231 and the light guide 232 are disposed on the side of the second glass plate 15, the light source 231 is connected to the light guide 232, the light source 231 is configured to emit light, and the light guide 232 is configured to guide the light emitted by the light source 231 to the second glass plate 15.

[0094] The number of the lighting assemblies 23 is at least one. For example, the laminated glass 1 has two lighting assemblies 23, and the two lighting assemblies 23 are respectively disposed on opposite sides of the second glass plate 15. Optionally, the light source 231 includes a plurality of light emitting diodes, and the plurality of light emitting diodes are arranged at intervals on one side of the second glass plate 15. Optionally, the light source 231 directly abuts against the light guide 232; or, the light source 231 is indirectly connected to the light guide 232 through other components. Specifically, the light emitted by the light source 231 can be incident on the light guide 232, and the light guide 232 can receive and guide the light from the light source 231 to the second glass plate 15, so that the laminated glass 1 has the function of an ambient light.

[0095] Further, the light guide 232 abuts against the side of the second glass plate 15, and the light source 231 is disposed at an end of the light guide 232 away from the side of the second glass plate 15. The light source 231 and the light guide 232 are arranged side by side or approximately side by side on the side of the second glass plate 15. As shown in the figure, when viewed from left to right, the light source 231, the light guide 232, and the second glass plate 15 are arranged in sequence.

[0096] By defining the positions of the light source 231, the light guide 232, and the second glass plate 15 in this embodiment, it not only avoids the lighting assembly 23 covering the second glass plate 15, but also optimizes the positions of the light source 231 and the light guide 232, which is beneficial for more light to be incident on the second glass plate 15.

[0097] Further, the lighting assembly 23 further includes a display pattern layer 233, and the display pattern layer 233 is disposed on the second glass plate 15. The display pattern layer 233 is disposed on the outer surface or the inner surface of the second glass plate 15, that is, the display pattern layer 233 is disposed on the surface of the second glass plate 15 facing the first glass plate 11; or, it is disposed on the surface of the second glass plate 15 facing away from the first glass plate 11.

[0098] The display pattern layer 233 can be placed on the second glass plate 15 in various ways. Optionally, the display pattern layer 233 is formed by processing graphics on the second glass plate 15 through processes such as laser engraving; optionally, the display pattern layer 233 is formed by screen-printing ink graphics on the second glass plate 15; optionally, the display pattern layer 233 is a scattering structure such as scattering particles that refract, reflect, etc. the light of the light source 231; optionally, the display pattern layer 233 is a photoluminescent structure, and the photoluminescent structure obtains energy from the light emitted by the light source 231 and then excites visible light, thereby presenting a light-emitting pattern. Among them, the graphics can be a moon, a heart shape, a cartoon character, a natural landscape, an oil painting, etc.

[0099] Further, the light-emitting component 23 further includes a cover body 234. One end of the cover body 234 is connected to the protective layer 13, and the other end is connected to the side of the second glass plate 15 facing away from the first glass plate 11. The cover body 234 forms a receiving cavity, and the light source 231 and the light guide member 232 are disposed in the receiving cavity.

[0100] The cover body 234 forms a receiving cavity to receive the light source 231 and the light guide member 232, thereby covering the light source 231 and the light guide member 232. Optionally, one end of the cover body 234 is adhesively connected to the protective layer 13, and the other end is adhesively connected to the second glass plate 15.

[0101] Please refer to Figure 6 In yet another embodiment, the laminated glass 1 further includes a low-emissivity layer 24, and the low-emissivity layer 24 is disposed on the side of the second glass plate 15 facing away from the second adhesive layer 14.

[0102] The low-emissivity layer 24 is used for heat insulation and heat preservation, thereby improving the comfort inside the vehicle. The low-emissivity layer 24 is disposed on the outer surface of the second glass plate 15. Optionally, the low-emissivity layer 24 is a TCO (transparent conductive metal oxide) film layer. The low-emissivity layer 24 has an emissivity e, and the emissivity e satisfies the following condition: e ≤ 0.3. Specifically, examples can be 0.3, or 0.25, or 0.2, or 0.15, or 0.1, etc. Preferably, the emissivity e ≤ 0.25; more preferably, the emissivity e ≤ 0.2.

[0103] Please refer to Figure 7 When a steel ball with a total mass of 28 g is dropped onto the surface of the first glass plate 11 facing away from the first adhesive layer 12, the height of the laminated glass 1 against external object impact ≥ 2000 mm. Specifically, examples can be 2250 mm, or 2500 mm, or 2750 mm, or 3000 mm, or 3250 mm, or 3500 mm, or 3750 mm, or 4000 mm, etc.

[0104] In summary, the present application provides laminated glass 1. By forming a strength protection structure, the structural strength of the laminated glass 1 is improved, and the probability of the laminated glass 1 breaking due to external object impact is reduced. Moreover, the present application is also provided with a protective layer 13 having a function of preventing breakage, which not only further reduces the probability of the laminated glass 1 breaking due to external object impact, but also reduces the potential harm to vehicle occupants caused by the breakage of the laminated glass 1, thereby improving the safety performance of the vehicle.

[0105] The present application also provides a preparation method of the laminated glass 1 as provided above in the present application. The preparation method includes:

[0106] S100, providing a first glass plate 11, a first adhesive layer 12, a protective layer 13, and a light-adjusting functional layer 22. The first glass plate 11 has a surface compressive stress CS, and the surface compressive stress CS satisfies the following condition: CS≥90 MPa.

[0107] S200, controlling the first glass plate 11, the first adhesive layer 12, the functional layer, and the protective layer 13 to be sequentially laminated, and performing a first laminating process to obtain a first laminated group.

[0108] S300, providing a second adhesive layer 14 and a second glass plate 15.

[0109] S400, controlling the first laminated group, the second adhesive layer 14, and the second glass plate 15 to be sequentially laminated, and performing a second laminating process to obtain the laminated glass as provided above in the present application.

[0110] In this embodiment, by first obtaining a first laminated group through the first laminating process to first form a strength protection structure, and then obtaining the laminated glass 1 through the second laminating process, the laminated glass 1 is prepared in a segmented manner, which is beneficial to improving the structural strength of the strength protection structure, improving the connection performance between the strength protection structure, the second adhesive layer 12, and the second glass plate 15, and thus improving the overall structural strength of the laminated glass 1.

[0111] In one embodiment, the functional layer includes a light-adjusting functional layer 22. The light-adjusting functional layer 22 is disposed on the first adhesive layer 12. In the step of performing the first laminating process, it further includes:

[0112] providing a first adhesive sub-layer 121 and a second adhesive sub-layer 122;

[0113] controlling the first glass plate 11, the first adhesive sub-layer 121, the light-adjusting functional layer 22, the second adhesive sub-layer 122, and the protective layer 13 to be sequentially laminated, and performing the first laminating process; wherein, the first adhesive sub-layer 121 and the second adhesive sub-layer 122 constitute the first adhesive layer 12.

[0114] In another embodiment, the functional layer includes a heat-reflective layer 21. In the step of performing the first lamination process, it further includes:

[0115] Forming a heat-reflective layer 21 provided on one side of the first glass plate 11;

[0116] Controlling the first glass plate 11, the first adhesive layer 12, the functional layer, and the protective layer 13 to be stacked in sequence, and performing the first lamination process; wherein, the heat-reflective layer 21 is provided on the side of the first glass plate 11 facing the first adhesive layer 12.

[0117] In yet another embodiment, in the step of performing the second lamination process, it further includes:

[0118] Forming a low-emissivity layer 24 provided on one side of the second glass plate 15;

[0119] Controlling the first lamination group, the second adhesive layer 14, and the second glass plate 15 to be stacked in sequence, and performing the second lamination process; wherein, the low-emissivity layer 24 is provided on the side of the second glass plate 15 facing away from the second adhesive layer 14.

[0120] The following is a detailed introduction to the production process flow of the laminated glass 1 provided by the present application: First, place the first glass plate 11 at the bottom layer, and then position the first adhesive sub-layer 121, the sealing adhesive sub-layer 123, the dimming functional layer 22, the second adhesive sub-layer 122, and the protective layer 13 in sequence. Subsequently, perform a lamination process on the above-mentioned multiple layer structures, and perform initial pressing and high-pressure pressing on the multiple layer structures to ensure that the multiple layer structures are bonded to each other.

[0121] Subsequently, position the second adhesive layer 14 and the second glass plate 15 on the above-mentioned laminated multiple layer structures in sequence, and then perform bonding and curing of this glass structure through processes such as lamination. Then, the installation of the seal 16 and the light-emitting component 23 can also be carried out, thereby obtaining the laminated glass 1 provided by the present application.

[0122] Moreover, a heat-reflective layer 21 can be provided on the first glass plate 11 in advance, a low-emissivity layer 24 can be provided on the second glass plate 15, and then the first glass plate 11 and the second glass plate 15 are subjected to hot bending forming and lamination processes, thereby obtaining the laminated glass 1 with a heat-reflective layer 21 and a low-emissivity layer 24.

[0123] The present application also provides a vehicle, the vehicle includes a vehicle body, and the laminated glass as provided above in the present application, and the laminated glass is provided at an opening of the vehicle body.

[0124] The vehicle provided by this application, by adopting the laminated glass provided above in this application, forms a strength protection structure to improve the structural strength of the laminated glass and reduce the probability of the laminated glass breaking due to external object impact. Moreover, this application is also provided with a protective layer having an anti-breakage function, which not only further reduces the probability of the laminated glass breaking due to external object impact but also reduces the potential harm to vehicle occupants caused by the breakage of the laminated glass, thereby improving the safety performance of the vehicle.

[0125] In order to make the purpose and advantages of this application clearer, the following further elaborates in detail on the effects of the laminated glass of this application in combination with specific embodiments.

[0126] Strength test:

[0127] Provide Comparative Examples 1-4 and Embodiments 1-3, wherein the heat-reflective layer is formed by combining three silver-plated layers. The specific film layer structures of Comparative Examples 1-4 and Embodiments 1-3 are as follows:

[0128] Comparative Example 1: 2.1 mm first glass plate / heat-reflective layer / 0.76 mm adhesive layer / 3.1 mm second glass plate / low-emissivity layer

[0129] Comparative Example 2: 2.1 mm first glass plate / heat-reflective layer / 0.38 mm first adhesive layer / 0.38 mm EC dimming functional layer / 0.38 mm second adhesive layer / 2.1 mm second glass plate

[0130] Comparative Example 3: 2.1 mm first glass plate / heat-reflective layer / 0.38 mm first adhesive layer / 0.38 mm PDLC dimming functional layer / 0.76 mm second adhesive layer / 2.1 mm second glass plate

[0131] Comparative Example 4: 2.1 mm first glass plate / heat-reflective layer / 0.38 mm first adhesive layer / 0.38 mm EC dimming functional layer / 0.76 mm second adhesive layer / 2.1 mm second glass plate / 0.38 mm third adhesive layer / 2.1 mm third glass plate

[0132] Embodiment 1: 3.15 mm first glass plate / heat-reflective layer / 0.38 mm first adhesive sub-layer / 0.38 mm EC dimming functional layer / 0.76 mm second adhesive sub-layer / 0.125 mm PET protective layer / 0.38 mm second adhesive layer / 2.1 mm second glass plate

[0133] Embodiment 2: 3.15 mm first glass plate / heat-reflective layer / 0.38 mm first adhesive sub-layer / 0.38 mm PDLC dimming functional layer / 0.76 mm second adhesive sub-layer / 0.125 mm PET protective layer / 0.38 mm PVB second adhesive layer / 2.1 mm second glass plate

[0134] Example 3: 1.1 mm first glass plate / heat-reflective layer / 0.38 mm first adhesive layer / 0.38 mm PDLC dimming functional layer / 0.76 mm second adhesive layer / 0.125 mm PET protective layer / 0.38 mm PVB second adhesive layer / 2.1 mm second glass plate

[0135] Measure and observe the height of the laminated glass against external object impact, the surface compressive stress of the first glass plate, and the state of whether the glass is broken, and record the measurement results in Table 1.

[0136] Specifically, the height of the laminated glass against external object impact uses a 28 g steel ball impact as a simulation state to simulate the impact speed of gravel, which is converted to the impact height of a 28 g steel ball and tested at a maximum speed of 120 Km / h.

[0137] Table 1: Performance parameters of the laminated glass in Comparative Examples 1-4 and Examples 1-3

[0138]

[0139]

[0140] Please refer to Table 1 together with Figure 8 , Figure 8 which is the performance parameter diagram of the laminated glass in Comparative Examples 1-4 and Examples 1-3. It should be noted that Figure 8 in it, the serial numbers 1-7 on the abscissa correspond to Comparative Example 1, Comparative Example 2, Comparative Example 3, Comparative Example 4, Example 1, Example 2, and Example 3 in sequence.

[0141] According to Table 1 and Figure 8 it can be seen that the laminated glass provided in Comparative Examples 1-4 did not use the first glass plate with a surface compressive stress CS≥90 MPa and did not set a protective layer, resulting in the laminated glass provided in Comparative Examples 1-4 being easily broken under external object impact. However, the laminated glass provided in Examples 1-3 forms a strength protection structure by setting the first glass plate with a surface compressive stress CS≥90 MPa and setting a protective layer, having extremely high structural strength. The height of the laminated glass against external object impact is ≥2000 mm, even up to 3500 mm, which can reduce the probability of the laminated glass being broken due to external object impact and reduce the potential harm to vehicle occupants caused by the broken laminated glass, thereby improving the safety performance of the vehicle.

[0142] Functional test:

[0143] Provide Comparative Examples 5-6 and Examples 4-5, wherein the heat-reflective layer is formed by combining three silver-plated layers. The specific film layer structures of Comparative Examples 5-6 and Examples 4-5 are as follows:

[0144] Comparative Example 5: 2.1 mm first glass plate / 0.38 mm first adhesive layer / 0.38 mm EC dimming functional layer / 0.76 mm second adhesive layer / 2.1 mm second glass plate

[0145] Comparative Example 6: 2.1 mm first glass plate / 0.38 mm PVB first adhesive layer / 0.38 mm PDLC dimming functional layer / 0.76 mm second adhesive layer / 2.1 mm second glass plate

[0146] Example 4: 3.15 mm first glass plate / heat reflective layer / 0.38 mm first adhesive sub-layer / 0.38 mm EC dimming functional layer / 0.76 mm second adhesive sub-layer / 0.125 mm PET protective layer / 0.38 mm PVB second adhesive layer / 2.1 mm second glass plate

[0147] Example 5: 3.15 mm first glass plate / heat reflective layer / 0.38 mm first adhesive sub-layer / 0.38 mm PDLC dimming functional layer / 0.76 mm second adhesive sub-layer / 0.125 mm PET protective layer / 0.38 mm PVB second adhesive layer / 2.1 mm second glass plate

[0148] Measure and calculate the visible light transmittance TL 1 、TL 2 and the solar energy reflectance RE of the laminated glass in the energized state and the de-energized state, and record the measurement results in Table 2.

[0149] Table 2: Performance parameters of the laminated glass in Comparative Examples 5-6 and Examples 4-5

[0150]

[0151] As can be seen from Table 2, the laminated glass provided in Comparative Examples 5-6 is not provided with a protective layer and a heat reflective layer, resulting in a low solar energy reflectance of the laminated glass provided in Comparative Examples 5-6, which easily causes the temperature inside the vehicle to be too high and the comfort level inside the vehicle to be low. However, the laminated glass provided in Examples 4-5 has a higher solar energy reflectance and a lower visible light transmittance by providing a protective layer and a heat reflective layer, which is beneficial to the comfort inside the vehicle and improves the user experience.

[0152] Unless otherwise specified or there is a contradiction, the terms or phrases used in this application have the following meanings:

[0153] In this application, "first", "second", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature.

[0154] In this application, "one or several" means any one, any two, or any two or more of the listed items. Among them, "several" means any two or more.

[0155] In this application, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to this application.

[0156] In this application, unless otherwise clearly defined and limited, terms such as "installed", "connected", "joined", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium, and can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0157] When "embodiment" or "implementation manner" is mentioned in this application, it means that the specific features, structures, or characteristics described in connection with the embodiment can be included in at least one embodiment of this application. The appearance of the above phrase at various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described in this application can be combined with other embodiments. In addition, it should also be understood that the features, structures, or characteristics described in each embodiment of this application can be combined arbitrarily without contradiction to form another embodiment that does not depart from the spirit and scope of the technical solution of this application.

[0158] The above is some implementation manners of this application. It should be noted that for those of ordinary skill in the art of this technology, without departing from the principle of this application, several improvements and refinements can be made, and these improvements and refinements are also regarded as the protection scope of this application.

Claims

1. A laminated glass, characterized in that: The laminated glass comprises a first glass plate, a first adhesive layer, a protective layer, a second adhesive layer, and a second glass plate which are sequentially stacked, the first glass plate having a surface compressive stress CS, the surface compressive stress CS satisfying the following condition: CS≥90MPa, the first glass plate, the first adhesive layer, and the protective layer are used to form a strength protection structure, and the strength protection structure is used to protect the second glass plate; The laminated glass further includes a functional layer, and the functional layer is disposed between the first glass plate and the protective layer.

2. The laminated glass according to claim 1, characterized in that: The width of the protective layer is less than or equal to the width of the first glass plate, and the width of the protective layer is greater than the width of the second glass plate.

3. The laminated glass according to claim 2, characterized in that: The width of the first glass plate is equal to the width of the first adhesive layer, and the width of the second glass plate is equal to the width of the second adhesive layer; the width of the first adhesive layer is greater than the width of the protective layer, and the width of the second adhesive layer is less than the width of the protective layer.

4. The laminated glass according to claim 1, characterized in that: The laminated glass further includes a sealing member, which is arranged on the sides of the first glass plate, the first adhesive layer, and the protective layer. The sealing member is also arranged on the surface of the protective layer away from the first glass plate.

5. The laminated glass according to claim 4, characterized in that: The seal comprises a first part and a second part connected to each other, wherein the first part covers the first glass plate, the first adhesive layer, and the side of the protective layer; the second part covers the surface of the protective layer away from the first glass plate and covers the peripheral portion of the protective layer.

6. The laminated glass according to claim 5, characterized in that: The second portion is spaced apart from the second adhesive layer, and the second portion is spaced apart from the second glass plate.

7. The laminated glass according to claim 4, characterized in that: In the extending direction from the edge of the laminated glass to the center of the laminated glass, the size of the sealing member covering the surface of the protective layer facing away from the first glass plate ranges from 10 mm to 100 mm.

8. The laminated glass according to claim 1, wherein: The functional layer includes a heat reflecting layer, and the heat reflecting layer is arranged on a side of the first glass plate facing the first bonding layer.

9. The laminated glass according to claim 1, characterized in that: The functional layer includes a dimming functional layer, and the dimming functional layer is disposed on the first bonding layer.

10. The laminated glass according to claim 9, characterized in that: The first bonding layer includes a first bonding sublayer and a second bonding sublayer. Along the stacking direction of the laminated glass, the first glass plate, the first bonding sublayer, the dimming functional layer, the second bonding sublayer, and the protective layer are stacked in sequence.

11. The laminated glass according to claim 9, characterized in that: When the dimming functional layer is in a powered-on state, the laminated glass has a visible transmittance TL1, and the visible transmittance TL1 satisfies the following condition: 5%<TL1≤20%; When the dimming functional layer is in a power-off state, the laminated glass has a visible transmittance TL2, and the visible transmittance TL2 satisfies the following condition: 0.1%≤TL2≤5%.

12. The laminated glass according to claim 1, characterized in that: The laminated glass also includes a light-emitting component, which includes a light source and a light guide. The light source and the light guide are both arranged on the side of the second glass plate. The light source is connected to the light guide and is used to emit light. The light guide is used to guide the light emitted by the light source to the second glass plate.

13. The laminated glass according to claim 12, characterized in that: The light guide member abuts against a side edge of the second glass plate, and the light source is disposed at an end of the light guide member away from the side edge of the second glass plate.

14. The laminated glass according to claim 12, characterized in that: The light-emitting component further comprises a display pattern layer, and the display pattern layer is arranged on the second glass plate; The light emitting assembly further comprises a cover body, one end of which is connected to the protective layer, and the other end of which is connected to a side of the second glass plate away from the first glass plate. The cover body forms a receiving cavity, and the light source and the light guide are arranged in the receiving cavity.

15. The laminated glass according to claim 1, characterized in that: The laminated glass further includes a low-emissivity layer, and the low-emissivity layer is disposed on a side of the second glass plate away from the second bonding layer.

16. A method for preparing laminated glass according to claim 1, characterized in that: The preparation method comprises: A first glass plate, a first adhesive layer, a protective layer, and a functional layer are provided, wherein the first glass plate has a surface compressive stress CS, and the surface compressive stress CS satisfies the following condition: CS≥90MPa; Controlling the first glass plate, the first adhesive layer, the functional layer, and the protective layer to be stacked in sequence, and performing a first lamination process to obtain a first lamination set; providing a second adhesive layer and a second glass sheet; The first lamination group, the second adhesive layer, and the second glass plate are controlled to be stacked in sequence, and a second lamination process is performed to obtain the laminated glass as claimed in claim 1.

17. The method for preparing laminated glass according to claim 16, characterized in that: The functional layer includes a dimming functional layer, and the dimming functional layer is disposed on the first bonding layer. The step of performing the first lamination process further includes: providing a first bonding sublayer and a second bonding sublayer; The first glass plate, the first bonding sublayer, the dimming functional layer, the second bonding sublayer, and the protective layer are controlled to be stacked in sequence, and the first lamination process is performed; wherein the first bonding sublayer and the second bonding sublayer constitute the first bonding layer.

18. The method for preparing laminated glass according to claim 16, characterized in that: The functional layer includes a heat reflective layer, and the step of performing the first lamination process further includes: forming a heat reflection layer disposed on one side of the first glass plate; The first glass plate, the first adhesive layer, the functional layer, and the protective layer are controlled to be stacked in sequence, and a first lamination process is performed; wherein the heat reflection layer is arranged on a side of the first glass plate facing the first adhesive layer.

19. The method for preparing laminated glass according to claim 16, wherein: The step of performing the second lamination process further includes: forming a low-emissivity layer disposed on one side of the second glass plate; The first lamination group, the second adhesive layer, and the second glass plate are controlled to be stacked in sequence, and a second lamination process is performed; wherein the low-emissivity layer is arranged on a side of the second glass plate away from the second adhesive layer.

20. A vehicle, characterized in that: The vehicle comprises a vehicle body, and the laminated glass according to any one of claims 1 to 15, wherein the laminated glass is arranged at an opening of the vehicle body.

Images