Laminated glass and vehicles

Abstract

A laminated glass and a vehicle including the laminated glass are provided. The laminated glass includes a first glass substrate (1), a first adhesive layer (2), a first functional layer (3), a second adhesive layer (4), and a second glass substrate (5). The first glass substrate, the first adhesive layer, the first functional layer, the second adhesive layer, and the second glass substrate are sequentially stacked. The thickness of the first glass substrate is greater than that of the second glass substrate, and the thickness of the first adhesive layer is less than that of the second adhesive layer. The laminated glass has an asymmetric structure. By increasing the thickness of the stress-bearing side of the laminated glass and decreasing the thickness of the non-stress-bearing side of the laminated glass, the mechanical strength of the entire laminated glass can be improved and the weight of the laminated glass can be reduced. This asymmetric structure also further improves the sound insulation effect of the laminated glass.

Description

[Technical Field]

[0001] This application relates to the technical field of vehicle glazing, and in particular to laminated glass and vehicles. [Background technology]

[0002] Car windows are an essential part of a vehicle, allowing drivers to observe the outside environment and ensure driving safety. Car window glass is required to meet safety performance parameters such as high strength, and also to reduce weight. Reducing the weight of the car window and vehicle weight can reduce the vehicle's energy consumption. Summary of the Invention

[0003] The technical problem of this application is to provide a lightweight, high-strength vehicle window glass. To this end, this application provides a laminated glass and a vehicle. The laminated glass is designed to have an asymmetric structure. By increasing the thickness of the laminated glass on the stressed side and decreasing the thickness of the laminated glass on the non-stressed side, the mechanical strength of the entire laminated glass can be improved and the weight of the laminated glass can be reduced. In addition, the asymmetric structure of this application further improves the sound insulation effect of the laminated glass.

[0004] The technical solutions adopted by this application to solve the technical problems are as follows: A laminated glass is provided. The laminated glass includes a first glass substrate, a first adhesive layer, a first functional layer, a second adhesive layer, and a second glass substrate. The first glass substrate, the first adhesive layer, the first functional layer, the second adhesive layer, and the second glass substrate are stacked in this order. The thickness of the first glass substrate is greater than the thickness of the second glass substrate, and the thickness of the first adhesive layer is less than the thickness of the second adhesive layer.

[0005] In one possible embodiment, the ratio of the thickness of the first glass substrate to the thickness of the second glass substrate is 1.17:1 to 2.91:1.

[0006] In one possible embodiment, the ratio of the thickness of the first glass substrate to the thickness of the second glass substrate is 1.17:1 to 1.5:1.

[0007] In one possible embodiment, the ratio of the thickness of the first adhesive layer to the thickness of the second adhesive layer is 1:8 to 1:1.1.

[0008] In one possible embodiment, the mechanical strength of the first glass substrate is greater than the mechanical strength of the second glass substrate.

[0009] In one possible embodiment, the hardness of the second adhesive layer is less than the hardness of the first adhesive layer.

[0010] In one possible embodiment, the first functional layer is at least one of an infrared reflective layer, an ultraviolet absorbing layer, a touch film layer, a polymer dispersed liquid crystal (PDLC) film layer, and a display film.

[0011] In one possible embodiment, the first functional layer is a third glass substrate, the thickness of the first glass substrate is greater than the thickness of the third glass substrate, and the thickness of the third glass substrate is greater than the thickness of the second glass substrate.

[0012] In one possible embodiment, the ratio of the thickness of the first glass substrate to the thickness of the third glass substrate to the thickness of the second glass substrate is (2.91 to 2):(2 to 1.17):1.

[0013] In one possible embodiment, the ratio of the thickness of the first glass substrate to the thickness of the third glass substrate to the thickness of the second glass substrate is (1.5 to 1.3):(1.3 to 1.17):1.

[0014] In one possible embodiment, the mechanical strength of the first glass substrate is greater than the mechanical strength of the third glass substrate, which in turn is greater than the mechanical strength of the second glass substrate.

[0015] In one possible embodiment, the laminated glass further comprises a second functional layer and a connecting layer, the second functional layer being disposed between the first functional layer and the second adhesive layer, and the connecting layer being disposed between the first functional layer and the second functional layer and configured to connect the first functional layer and the second functional layer.

[0016] In one possible embodiment, the thickness of the first functional layer is greater than the thickness of the second functional layer.

[0017] In one possible embodiment, the ratio of the thickness of the first functional layer to the thickness of the second functional layer is 2:1 to 3:1.

[0018] In one possible embodiment, the hardness of the first functional layer is greater than the hardness of the second functional layer.

[0019] In one possible embodiment, the thickness of the connection layer is between 0.1 mm and 0.4 mm.

[0020] In one possible embodiment, the thickness of the connection layer is 0.1 mm to 0.2 mm.

[0021] In one possible embodiment, the second functional layer is at least one of an infrared reflective layer, an ultraviolet absorbing layer, a touch film layer, a polymer dispersed liquid crystal (PDLC) film layer, and a display film.

[0022] In one possible embodiment, the laminated glass further includes a touch film layer disposed between the second glass substrate and the second adhesive layer, the touch film layer being configured to detect touch signals.

[0023] The present application further provides a vehicle, which includes a vehicle body and the laminated glass of the present application, wherein a first glass substrate faces the exterior of the vehicle body and a second glass substrate faces the interior of the vehicle body.

[0024] The laminated glass of the present application can be applied to enclosed spaces such as vehicles, buildings, and equipment. This facilitates observation of the external environment or the internal conditions of the enclosed space through the laminated glass. The first glass substrate of the laminated glass is the component directly subjected to external pressure. When external pressure acts on the laminated glass, the impact caused by the external pressure first acts on the first glass substrate, is absorbed by the first glass substrate, and then is transmitted to the second glass substrate. During this process, the first glass substrate receives the most impact. The impact from the external pressure then gradually weakens. As a result, the second glass substrate receives relatively little impact. Therefore, the load-bearing capacity of the second glass substrate is underutilized, resulting in redundancy. In contrast, the technical solution of the present application thickens the first glass substrate, which receives the greatest impact from external pressure, and thins the second glass substrate, which receives the least impact from external pressure. This maximizes (or demonstrates) the load-bearing capacity of the glass substrates. This improves the overall mechanical strength of the laminated glass of the present application. After a laminated glass receives an external impact, the laminated glass tends to passively deform due to the external pressure. The first adhesive layer is provided on the first glass substrate. When external pressure acts on the laminated glass, the external pressure acts directly on the first glass substrate. In this case, the first adhesive layer is designed to be relatively thin and have a relatively high hardness. This is advantageous for ensuring the stability of the connection between the first glass substrate and other components of the laminated glass. When the impact from the external pressure subsequently reaches the second adhesive layer, the impact is gradually weakened. In this case, the second adhesive layer is designed to be relatively thick and have a relatively low hardness. This absorbs the deformation of the laminated glass due to the external pressure, achieving a buffering effect. This improves the overall stability of the laminated glass. [Brief explanation of the drawings]

[0025] [Figure 1]FIG. 1 is a schematic diagram showing the structure of a laminated glass including a single functional film layer according to an embodiment of the present application. [Figure 2] FIG. 2 is a schematic diagram showing the structure of a laminated glass including multiple functional film layers according to an embodiment of the present application. [Figure 3] FIG. 3 is a schematic diagram showing the structure of a laminated glass including a plurality of glass substrates according to an embodiment of the present application. [Figure 4] FIG. 4 is a schematic diagram showing a vehicle according to an embodiment of the present application. DETAILED DESCRIPTION OF THE INVENTION

[0026] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be described in more detail below with reference to the drawings and examples. It is understood that the specific examples described herein are only for the purpose of interpreting the present application, and are not intended to limit the present application.

[0027] In the description of this application, the term "example" or "embodiment" refers to a particular feature, structure, or characteristic described in connection with the example or embodiment. The appearance of such terms anywhere in the specification does not necessarily refer to the same example, nor is it an independent or alternative example that is mutually exclusive with other examples. The directional or positional relationships indicated by terms such as "center," "upper," "lower," "left," "right," "upright," "horizontal," "inner," and "outer" are based on the directional or positional relationships shown in the accompanying drawings. These terms are intended to facilitate and simplify the description of this application. They do not expressly or imply that the devices or elements shown necessarily have a particular orientation or are configured and operated in a particular direction, and therefore should not be construed as limiting this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be understood to indicate or imply relative importance.

[0028] Furthermore, the technical features according to different embodiments of the present application described above can be combined with each other unless there is a contradiction.

[0029] 1, laminated glass 100 includes a first glass substrate 1, a first adhesive layer 2, a first functional layer 3, a second adhesive layer 4, and a second glass substrate 5. The first glass substrate 1, the first adhesive layer 2, the first functional layer 3, the second adhesive layer 4, and the second glass substrate 5 are sequentially stacked. The thickness of the first glass substrate 1 is greater than the thickness of the second glass substrate 5, and the thickness of the first adhesive layer 2 is less than the thickness of the second adhesive layer 4.

[0030] Optionally, when the laminated glass 100 according to the present application is installed in a vehicle and used as a vehicle window glass, the surface of the first glass substrate 1 facing away from the second glass substrate 5 faces the exterior of the vehicle, and the surface of the second glass substrate 5 facing away from the first glass substrate 1 faces the interior of the vehicle. In other words, the surface of the first glass substrate 1 facing away from the second glass substrate 5 is the surface that receives an impact, or the outer surface or exterior surface. The first glass substrate 1, the first adhesive layer 2, the first functional layer 3, the second adhesive layer 4, and the second glass substrate 5 are sequentially stacked. In other words, the first glass substrate 1 and the first functional layer 3 are bonded via the first adhesive layer 2, and the first functional layer 3 and the second glass substrate 5 are bonded via the second adhesive layer 4.

[0031] Alternatively, when external pressure acts on the laminated glass 100, the impact of the external pressure first acts on the first glass substrate 1, is absorbed by the first glass substrate 1, and then is transmitted to the second glass substrate 5. The impact received by the first glass substrate 1 is relatively large, while the impact received by the second glass substrate 5 is relatively small. Therefore, in the present application, the thickness of the first glass substrate 1 is made thicker than the thickness of the second glass substrate 5, thereby maximizing the load-bearing capacity of the glass substrates and improving the overall mechanical strength of the laminated glass 100 according to the present application. After the laminated glass 100 receives an impact from external pressure, the laminated glass 100 is deformed by the external pressure. The first adhesive layer 2 is provided on the first glass substrate 1. When external pressure acts on the laminated glass 100, the external pressure acts directly on the first glass substrate 1. In this case, the first adhesive layer 2 is designed to be relatively thin. This is advantageous in ensuring the stability of the connection between the first glass substrate 1 and other components of the laminated glass 100. When an external pressure impact reaches the second adhesive layer 4, the impact is gradually weakened. In this case, the second adhesive layer 4 is designed to be relatively thick and have a relatively low hardness. This allows deformation of the laminated glass 100 due to the external pressure to be absorbed, achieving a buffering effect. This improves the stability of the entire laminated glass 100.

[0032] In one possible embodiment, the ratio of the thickness of the first glass substrate 1 to the thickness of the second glass substrate 5 is 1.17:1 to 2.91:1. Specifically, the ratio of the thickness of the first glass substrate 1 to the thickness of the second glass substrate 5 may be, but is not limited to, 1.17:1, 1.2:1, 1.4:1, 1.6:1, 1.8:1, 2:1, 2.2:1, 2.4:1, 2.6:1, 2.8:1, or 2.91:1. In one possible embodiment, the ratio of the thickness of the first glass substrate 1 to the thickness of the second glass substrate 5 is 1.17:1 to 1.5:1. Specifically, the ratio of the thickness of the first glass substrate 1 to the thickness of the second glass substrate 5 may be, but is not limited to, 1.17:1, 1.2:1, 1.23:1, 1.25:1, 1.27:1, 1.3:1, 1.33:1, 1.35:1, 1.37:1, or 1.4:1.

[0033] When external pressure acts on the laminated glass 100, the impact caused by the external pressure acts on the first glass substrate 1, is received and absorbed by the first glass substrate 1, and is then transmitted to the second glass substrate 5. The external impact received by the first glass substrate 1 differs from the external impact received by the second glass substrate 5. That is, the impact received by the first glass substrate 1 is relatively large, while the impact received by the second glass substrate 5 is relatively small. Therefore, in the present application, by controlling the ratio of the thickness of the first glass substrate 1 to the thickness of the second glass substrate 5, the load-bearing capabilities of the first glass substrate 1 and the second glass substrate 5 are fully utilized and redundancy can be avoided. When the ratio of the thickness of the first glass substrate 1 to the thickness of the second glass substrate 5 is 1.17:1 to 2.91:1, the load-bearing capabilities of the first glass substrate 1 and the second glass substrate 5 are fully utilized. Furthermore, when the ratio of the thickness of the first glass substrate 1 to the thickness of the second glass substrate 5 is 1.17:1 to 1.5:1, the load-bearing capacity of the first glass substrate 1 and the second glass substrate 5 can be more fully utilized. This is advantageous for reducing the thickness of the laminated glass 100 and improving the mechanical strength of the laminated glass 100. When the ratio of the thickness of the first glass substrate 1 to the thickness of the second glass substrate 5 is less than 1.17:1, the load-bearing capacity of the second glass substrate 5 cannot be fully utilized, resulting in redundancy. Furthermore, even if the mechanical strength of the laminated glass 100 remains unchanged, an excessively thick second glass substrate 5 will increase the overall thickness of the laminated glass 100. When the ratio of the thickness of the first glass substrate 1 to the thickness of the second glass substrate 5 is greater than 2.91:1, the first glass substrate 1 will be too thick, which is disadvantageous for thinning the laminated glass 100.

[0034] Alternatively, the thickness of the first glass substrate 1 is 2.1 mm to 4.0 mm. Specifically, the thickness of the first glass substrate 1 may be, but is not limited to, 2.1 mm, 2.3 mm, 2.5 mm, 2.8 mm, 3.0 mm, 3.2 mm, 3.5 mm, or 4.0 mm.

[0035] Alternatively, the thickness of the second glass substrate 5 is 1.1 mm to 2.1 mm. Specifically, the thickness of the second glass substrate 5 may be, but is not limited to, 1.1 mm, 1.2 mm, 1.3 mm, 1.4 mm, 1.5 mm, 1.6 mm, 1.8 mm, 2.0 mm, or 2.1 mm.

[0036] Specifically, when the thickness of the first glass substrate 1 is 2.1 mm to 4.0 mm and the thickness of the second glass substrate 5 is 1.1 mm to 2.1 mm, the ratio of the thickness of the first glass substrate to the thickness of the second glass substrate still satisfies the range of 1.17:1 to 2.91:1. This ensures that the load-bearing capacity of the first glass substrate 1 and the second glass substrate 5 is fully utilized, avoiding redundancy. Because the first glass substrate 1 is directly subjected to external pressure, the mechanical strength of the first glass substrate 1 directly affects the mechanical strength of the laminated glass 100. If the first glass substrate 1 is too thick, exceeding 4.0 mm, the load-bearing capacity of the first glass substrate 1 itself will be redundant in actual application scenarios. A first glass substrate 1 that is too thick will result in excessive and unnecessary weight for the laminated glass 100. If the first glass substrate 1 is too thin (less than 2.1 mm), its own load-bearing capacity is insufficient and it cannot protect the laminated glass 100. If the second glass substrate 5 is too thick (more than 2.1 mm), the load-bearing capacity of the second glass substrate 5 is not fully utilized, resulting in redundancy. Furthermore, if the mechanical strength of the laminated glass 100 remains unchanged, a second glass substrate 5 that is too thick will increase the overall thickness of the laminated glass 100. If the second glass substrate 5 is too thin (less than 1.1 mm), its load-bearing capacity will be insufficient to withstand the impact of external pressure transmitted from the first glass substrate 1, thereby weakening the mechanical strength of the laminated glass 100 itself.

[0037] In one possible embodiment, the ratio of the thickness of the first adhesive layer 2 to the thickness of the second adhesive layer 4 is 1:8 to 1:1.1. Specifically, the ratio of the thickness of the first adhesive layer 2 to the thickness of the second adhesive layer 4 may be, but is not limited to, 1:8, 1:7, 1:6, 1:5, 1:4, 1:3, 1:2, or 1:1.1. Furthermore, the ratio of the thickness of the first adhesive layer 2 to the thickness of the second adhesive layer 4 is 1:3 to 1:1.1.

[0038] When external pressure acts on the laminated glass 100, the laminated glass 100 tends to deform passively due to the external pressure. Because the first glass substrate 1 receives the greatest impact from the external pressure, the first adhesive layer 2 on the first glass substrate 1 is designed to be relatively thin. This is advantageous for ensuring the stability of the connection between the first glass substrate 1 and other components of the laminated glass 100. When the external pressure subsequently reaches the second adhesive layer 4, the impact is gradually weakened. In this case, the second adhesive layer 4 is designed to be relatively thick. This allows the deformation of the laminated glass 100 due to the external pressure to be absorbed, achieving a cushioning effect. Therefore, in this application, by controlling the ratio of the thickness of the first glass substrate 1 to the thickness of the second glass substrate 5 to be 1:8 to 1:1.1, the first adhesive layer 2 can exhibit good stability, and the second adhesive layer 4 can exhibit good cushioning performance. This improves the overall stability of the laminated glass 100.

[0039] Optionally, the thickness of the first adhesive layer 2 is 0.1 mm to 0.38 mm. Specifically, the thickness of the first adhesive layer 2 may be, but is not limited to, 0.1 mm, 0.15 mm, 0.2 mm, 0.25 mm, 0.3 mm, 0.35 mm, or 0.38 mm.

[0040] Optionally, the thickness of the second adhesive layer 4 is 0.38 to 0.76 mm. Specifically, the thickness of the second adhesive layer 4 may be, but is not limited to, 0.38 mm, 0.42 mm, 0.46 mm, 0.50 mm, 0.54 mm, 0.58 mm, 0.62 mm, 0.66 mm, 0.70 mm, 0.72 mm, or 0.76 mm.

[0041] Alternatively, when the sum of the thickness of the first adhesive layer 2 and the thickness of the second adhesive layer 4 is 1.14 mm, the ratio of the thickness of the first adhesive layer 2 to the thickness of the second adhesive layer 4 is 1:2. When the sum of the thickness of the first adhesive layer 2 and the thickness of the second adhesive layer 4 is 10.64 mm, the ratio of the thickness of the first adhesive layer 2 to the thickness of the second adhesive layer 4 is 1:6. In other words, the sum of the thickness of the first adhesive layer 2 and the thickness of the second adhesive layer 4 is relatively large, and the ratio of the thickness of the first adhesive layer 2 to the thickness of the second adhesive layer 4 is relatively small.

[0042] In one possible embodiment, the mechanical strength of the first glass substrate 1 is greater than the mechanical strength of the second glass substrate 5. When external pressure acts on the laminated glass 100, the impact from the external pressure acts on the first glass substrate 1, is absorbed by the first glass substrate 1, and is then transmitted to the second glass substrate 5. The external impact experienced by the first glass substrate 1 differs from the external impact experienced by the second glass substrate 5. That is, the impact experienced by the first glass substrate 1 is relatively greater, while the impact experienced by the second glass substrate 5 is relatively less. Therefore, in this application, the first glass substrate 1 can be fabricated using a material with higher mechanical strength. In other words, if the mechanical strengths of the materials for the first glass substrate 1 and the second glass substrate 5 are the same, the strength of the first glass substrate 1 can be improved by increasing the thickness of the first glass substrate 1. This allows the first glass substrate 1 to withstand greater external pressure impacts, thereby improving the mechanical strength of the laminated glass 100. Alternatively, the first glass substrate 1 may be made of a material having a higher mechanical strength than the second glass substrate 5. This allows the first glass substrate 1 to have a higher mechanical strength and to withstand a greater external pressure impact, thereby improving the mechanical strength of the laminated glass 100.

[0043] Optionally, the first glass substrate 1 is chemically strengthened glass and the second glass substrate 5 is tempered glass.

[0044] Specifically, the mechanical strength of the first glass substrate 1 is 500 MPa to 1100 MPa, and the mechanical strength of the second glass substrate 5 is 96 MPa to 120 MPa.

[0045] In one possible embodiment, the hardness of the second adhesive layer 4 is less than the hardness of the first adhesive layer 2. When external pressure acts on the laminated glass 100, the laminated glass 100 tends to deform passively due to the external pressure. Because the first glass substrate 1 receives the greatest impact from the external pressure, the first adhesive layer 2 on the first glass substrate 1 is designed to be relatively thin, ensuring a relatively large thickness and ensuring a stable connection between the first glass substrate 1 and other components in the laminated glass 100. When the external pressure subsequently reaches the second adhesive layer 4, the impact is gradually weakened. In this case, the second adhesive layer 4 is designed to be relatively thick, ensuring a relatively small hardness. This allows deformation of the laminated glass 100 due to the external pressure to be absorbed, achieving a cushioning effect. In other words, in the present application, by making the hardness of the first adhesive layer 2 greater than that of the second adhesive layer 4, the first adhesive layer 2 can exhibit good stability and the second adhesive layer 4 can exhibit good cushioning performance, thereby improving the stability of the entire laminated glass 100.

[0046] Optionally, the hardness of the second adhesive layer 4 is 40HA to 50HA, and the hardness of the first adhesive layer 2 is 50HA to 60HA.

[0047] In one possible embodiment, the first functional layer 3 is at least one of an infrared reflective layer, an ultraviolet absorbing layer, a touch film layer, a polymer dispersed liquid crystal (PDLC) film layer, and a display film layer.

[0048] Optionally, the polymer dispersed liquid crystal film layer may be at least one of a suspended-particle device (SPD) light management film, an electrochromic (EC) light management film, and a liquid crystal (LC) light management film.

[0049] The infrared reflective layer has a thickness of 6 nm to 90 nm. When the laminated glass 100 is used as a window glass in a vehicle, the infrared reflective layer is configured to reflect infrared rays from sunlight, preventing the temperature inside the vehicle from becoming too high due to infrared rays. The ultraviolet absorbing layer has a thickness of 20 nm to 84 nm. When the laminated glass 100 is used as a window glass in a vehicle, the ultraviolet absorbing layer is configured to absorb ultraviolet rays from sunlight, preventing the ultraviolet rays from damaging the skin of people inside the vehicle. The touch film layer has a thickness of 37 nm to 132 nm. The touch film layer is configured to detect a touch signal applied to the laminated glass 100. When the laminated glass 100 is used as a window glass in a vehicle, the touch film layer is configured to detect the touch signal and control components of the vehicle, such as wind lamps, sensor lamps, atmosphere lamps, sensors, and processors, according to the detected signal. The polymer dispersed liquid crystal film layer has a thickness of 25 nm to 98 nm. The polymer dispersed liquid crystal film layer is configured to switch between a transparent state and a non-transparent state, thereby adjusting the laminated glass 100 to a transparent state or a non-transparent state.

[0050] Optionally, the laminated glass 100 obtained by sequentially stacking the first glass substrate 1, the first adhesive layer 2, the first functional layer 3, the second adhesive layer 4, and the second glass substrate 5 has an asymmetric structure with the first functional layer 3 as the central layer. When sound waves propagate through the laminated glass 100 of the present application, this asymmetric structure can increase the propagation loss of the sound waves. This can improve the sound insulation effect when the laminated glass 100 of the present application is used in a vehicle.

[0051] 2, in one possible embodiment, the first functional layer 3 is a third glass substrate 6. The thickness of the first glass substrate 1 is greater than the thickness of the third glass substrate 6, which is greater than the thickness of the second glass substrate 5.

[0052] When external pressure acts on the laminated glass 100, the impact from the external pressure first acts on the first glass substrate 1, is received and absorbed by the first glass substrate 1, is then transmitted to the third glass substrate 6, is received and absorbed by the third glass substrate 6, and is then transmitted to the second glass substrate 5. The first glass substrate 1 receives the greatest impact, the third glass substrate 6 receives the second greatest impact, and the second glass substrate 5 receives the least impact. Therefore, in the present application, the first glass substrate 1, the third glass substrate 6, and the second glass substrate 5 are successively made thinner, thereby maximizing the load-bearing capacity of the glass substrates. This improves the overall mechanical strength of the laminated glass 100 according to the present application.

[0053] In one possible embodiment, the ratio of the thickness of the first glass substrate 1 to the thickness of the third glass substrate 6 to the thickness of the second glass substrate 5 is (2.91 to 2):(2 to 1.17):1. Specifically, the ratio of the thickness of the first glass substrate 1 to the thickness of the third glass substrate 6 to the thickness of the second glass substrate 5 may be, but is not limited to, 2.91:2:1, 2.8:2:1, 2.7:2:1, 2.6:2:1, 2.5:2:1, 2.4:1.8:1, 2.2:1.5:1, 2.2:1.2:1, or 2:1.17:1. In one possible embodiment, the ratio of the thickness of the first glass substrate 1 to the thickness of the third glass substrate 6 to the thickness of the second glass substrate 5 is (1.5 to 1.3):(1.3 to 1.17):1. Specifically, the ratio of the thickness of the first glass substrate 1 to the thickness of the third glass substrate 6 to the thickness of the second glass substrate 5 may be, but is not limited to, 1.5:1.3:1, 1.5:1.2:1, 1.5:1.17:1, 1.45:1.17:1, 1.4:1.17:1, 1.35:1.17:1, or 1.3:1.17:1. When the ratio of the thickness of the first glass substrate 1 to the thickness of the third glass substrate 6 to the thickness of the second glass substrate 5 is (2.91-2):(2-1.17):1, the load-bearing capacity of the first glass substrate 1, the third glass substrate 6, and the second glass substrate 5 can be more fully utilized, which is advantageous for reducing the thickness of the laminated glass 100 and improving the mechanical strength of the laminated glass 100. Furthermore, when the ratio of the thickness of the first glass substrate 1 to the thickness of the third glass substrate 6 to the thickness of the second glass substrate 5 is (1.5-1.3):(1.3-1.17):1, the load-bearing capacity of the first glass substrate 1, the third glass substrate 6, and the second glass substrate 5 can be more fully utilized, which is advantageous for making the laminated glass 100 thinner and improving the mechanical strength of the laminated glass 100.

[0054] Optionally, the thickness of the third glass substrate 6 is 1.4 mm to 3.2 mm. Specifically, the thickness of the third glass substrate 6 may be, but is not limited to, 1.4 mm, 1.5 mm, 1.6 mm, 1.7 mm, 1.8 mm, 1.9 mm, 2.0 mm, 2.1 mm, 2.2 mm, 2.2 mm, 2.3 mm, 2.4 mm, 2.5 mm, 2.6 mm, 2.7 mm, 2.8 mm, 2.9 mm, 3.0 mm, 3.1 mm, or 3.2 mm. The thickness of the third glass substrate 6 is smaller than that of the first glass substrate 1 and greater than that of the second glass substrate 5. By sequentially thinning the first glass substrate 1, the third glass substrate 6, and the second glass substrate 5, the load-bearing capacity of the glass substrates can be maximized. This improves the overall mechanical strength of the laminated glass 100 according to the present application.

[0055] In one possible embodiment, the mechanical strength of the first glass substrate 1 is greater than the mechanical strength of the third glass substrate 6, which in turn is greater than the mechanical strength of the second glass substrate 5.

[0056] When external pressure acts on the laminated glass 100, the impact from the external pressure acts on the first glass substrate 1, is received and absorbed by the first glass substrate 1, is transmitted to the third glass substrate 6, is received and absorbed by the third glass substrate 6, and is transmitted to the second glass substrate 5. The external impact received by the first glass substrate 1, the second glass substrate 5, and the third glass substrate 6 are different. That is, the first glass substrate 1 receives the greatest impact, the third glass substrate 6 receives the second greatest impact, and the second glass substrate 5 receives the least impact. Therefore, in the present application, the first glass substrate 1 and / or the third glass substrate 6 can be fabricated using a material with higher mechanical strength. In other words, if the materials of the first glass substrate 1, the third glass substrate 6, and the second glass substrate 5 have the same mechanical strength, the strength of the first glass substrate 1 can be improved by thickening the first glass substrate 1, and the strength of the third glass substrate 6 can be improved by thickening the third glass substrate 6. This allows the first glass substrate 1 and the third glass substrate 6 to withstand greater external pressure impacts. This improves the mechanical strength of the laminated glass 100. Alternatively, each of the first glass substrate 1 and the third glass substrate 6 may be made of a material having a higher mechanical strength than the second glass substrate 5. This allows the first glass substrate 1 to have a higher mechanical strength and to withstand greater external pressure impacts. This achieves the goal of improving the mechanical strength of the laminated glass 100.

[0057] Optionally, the laminated glass 100 further includes a plurality of glass substrates and a plurality of adhesive layers. The plurality of glass substrates are stacked between a first glass substrate 1 and a second glass substrate 5. The plurality of glass substrates are connected to the first glass substrate 1 via adhesive layers and to the second glass substrate 5 via adhesive layers. In the direction from the first glass substrate 1 to the second glass substrate 5, the thicknesses of the plurality of glass substrates gradually decrease, and the thicknesses of the plurality of adhesive layers gradually increase. Alternatively, the mechanical strength of the plurality of glass substrates gradually decreases, and the hardness of the plurality of adhesive layers gradually decreases.

[0058] Alternatively, a laminated glass 100 obtained by sequentially stacking a first glass substrate 1, a first adhesive layer 2, a third glass substrate 6, a second adhesive layer 4, and a second glass substrate 5 has an asymmetric structure with the third glass substrate 6 as the central layer.

[0059] Referring to Figure 3, in one possible embodiment, the laminated glass 100 further includes a second functional layer 8 and a connecting layer 7. The second functional layer 8 is provided between the first functional layer 3 and the second adhesive layer 4. The connecting layer 7 is provided between the first functional layer 3 and the second functional layer 8, and is configured to connect the first functional layer 3 and the second functional layer 8.

[0060] Optionally, the adhesive layer is configured to connect the first functional layer 3 and the second functional layer 8. As a result, the first functional layer 3 and the second functional layer 8 form a functional layer group, which can impart multiple functions to the laminated glass 100. Optionally, the laminated glass 100 further includes multiple functional layers and multiple connecting layers 7 located between the multiple functional layers. The connecting layers 7 are configured to connect the multiple functional layers, which forms a functional layer group, and the connecting layers 7 impart corresponding functions to the laminated glass 100.

[0061] In one possible embodiment, the thickness of the first functional layer 3 is greater than the thickness of the second functional layer 8. When external pressure acts on the laminated glass 100, the impact of the external pressure is transmitted through the laminated glass 100. The impact first reaches the first functional layer 3 and then reaches the second functional layer 8. The external impact experienced by the first functional layer 3 is different from the external impact experienced by the second functional layer 8. That is, the first functional layer 3 is subjected to a relatively large external impact, while the second functional layer 8 is subjected to a relatively small external impact. Therefore, in this application, the functional layer with a larger thickness is referred to as the first functional layer 3. This allows the first functional layer 3 to withstand a larger impact. This ensures the structural stability of the first functional layer 3 and the second functional layer 8, which is beneficial to the stability of the laminated glass 100.

[0062] In one possible embodiment, the ratio of the thickness of the first functional layer 3 to the thickness of the second functional layer 8 is 2:1 to 3:1. Specifically, the ratio of the thickness of the first functional layer 3 to the thickness of the second functional layer 8 may be, but is not limited to, 2:1, 2.1:1, 2.2:1, 2.3:1, 2.4:1, 2.5:1, 2.6:1, 2.7:1, 2.8:1, 2.9:1, or 3:1. When the ratio of the thickness of the first functional layer 3 to the thickness of the second functional layer 8 is 2:1 to 3:1, the impact of external pressure acting on the first functional layer 3 and the second functional layer 8 can be more reasonably distributed, which is advantageous for improving the mechanical strength and stability of the laminated glass 100.

[0063] In one possible embodiment, the hardness of the first functional layer 3 is greater than the hardness of the second functional layer 8. When external pressure acts on the laminated glass 100, the impact of the external pressure is transmitted through the laminated glass 100. The impact first reaches the first functional layer 3 and then reaches the second functional layer 8. The external impact experienced by the first functional layer 3 is different from the external impact experienced by the second functional layer 8. That is, the first functional layer 3 receives a relatively large amount of external impact, while the second functional layer 8 receives a relatively small amount of external impact. Therefore, in this application, in order to more reasonably allocate the external pressure impact experienced by the first functional layer 3 and the second functional layer 8, the functional layer with the greater hardness is referred to as the first functional layer 3. This allows the first functional layer 3 to withstand a larger amount of impact. This ensures the structural stability of the first functional layer 3 and the second functional layer 8, which is beneficial to the stability of the laminated glass 100.

[0064] In one possible embodiment, the thickness of the connection layer 7 is 0.1 mm to 0.4 mm. Specifically, the thickness of the connection layer 7 may be 0.1 mm, 0.15 mm, 0.2 mm, 0.25 mm, 0.3 mm, 0.35 mm, or 0.4 mm. In one possible embodiment, the thickness of the connection layer 7 is 0.1 mm to 0.2 mm. Specifically, the thickness of the adhesive layer 7 may be 0.1 mm, 0.11 mm, 0.12 mm, 0.13 mm, 0.14 mm, 0.15 mm, 0.16 mm, 0.17 mm, 0.18 mm, 0.19 mm, or 0.2 mm. The adhesive layer is configured to connect the first functional layer 3 and the second functional layer 8 to ensure that the first functional layer 3 and the second functional layer 8 function normally and that their structures are stable. Furthermore, a thinner adhesive layer can ensure greater hardness. This can further improve the stability of the first functional layer 3 and the second functional layer 8. In the present application, the thickness of the connection layer 7 is 0.1 mm to 0.4 mm. Furthermore, the thickness of the connection layer 7 is 0.1 mm to 0.2 mm. In this case, the adhesive layer is relatively thin and has high hardness. Therefore, the stability of the first functional layer 3 and the second functional layer 8 is relatively high.

[0065] In one possible embodiment, the second functional layer 8 is at least one of an infrared reflective layer, an ultraviolet absorbing layer, a touch film layer, a polymer dispersed liquid crystal film layer, and a display film. The polymer dispersed liquid crystal film layer may be at least one of a suspended particle device (SPD) light control film, an electrochromic (EC) light control film, and a liquid crystal (LC) light control film, but is not limited thereto. Specifically, the thickness of the infrared reflective layer is 6 nm to 90 nm. When the laminated glass 100 is used as a window glass in a vehicle, the infrared reflective layer is configured to reflect infrared rays in sunlight to prevent the temperature inside the vehicle from becoming too high due to infrared rays. The thickness of the ultraviolet absorbing layer is 20 nm to 84 nm. When the laminated glass 100 is used as a window glass in a vehicle, the ultraviolet absorbing layer is configured to absorb ultraviolet rays in sunlight to prevent the ultraviolet rays from damaging the skin of people inside the vehicle. The thickness of the touch film layer is 37 nm to 132 nm. The touch film layer is configured to detect a touch signal applied to the laminated glass 100. When the laminated glass 100 is used as a window glass in a vehicle, the touch film layer is configured to detect touch signals and control components of the vehicle such as wind lamps, sensor lamps, atmosphere lamps, sensors, and processors according to the detected signals. The polymer dispersed liquid crystal film layer has a thickness of 25 nm to 98 nm. The polymer dispersed liquid crystal film layer is configured to switch between a transparent state and a non-transparent state, thereby adjusting the laminated glass 100 to a transparent state or a non-transparent state.

[0066] In one possible embodiment, the laminated glass 100 further comprises a touch film layer disposed between the second glass substrate 5 and the second adhesive layer 4, the touch film layer being configured to detect touch signals.

[0067] Optionally, the touch film layer is disposed on the second glass substrate 5. The second adhesive layer 4 is disposed on the surface of the touch film layer facing away from the second glass substrate 5. The touch film layer includes a conductor and a controller. Elongated electrodes are plated on the four sides of the conductor in the touch film layer to form a low-voltage alternating-current electric field within the conductor. When a user of the laminated glass 100 touches the second glass substrate 5, a coupling capacitance is formed between the finger and the conductor layer due to the electric field generated by the human body. Currents generated by the electrodes located on the four sides flow to the touch point. The current strength is directly proportional to the distance between the finger and the electrode. A controller located on the second glass substrate 5 calculates the current rate and current strength to accurately determine the location of the touch point. When the laminated glass 100 is used as a window glass in a vehicle, the touch film layer controls components such as window lamps, sensor lamps, atmosphere lamps, sensors, and processors according to the locations of different touch points.

[0068] Referring to Tables 1 to 3, Tables 1 to 3 show the physicochemical properties of the laminated glass according to the present application.

[0069] Each of Examples 1 to 5 and Comparative Examples 1 to 5 is laminated glass obtained by sequentially stacking a first glass substrate, a first adhesive layer, a first functional layer, a second adhesive layer, and a second glass substrate, followed by compression molding. The average stress of the laminated glass in each of Examples 1 to 5 and Comparative Examples 1 to 5 is 23 MPa. Each of Examples 6 to 10 and Comparative Examples 6 to 10 is laminated glass obtained by sequentially stacking a first glass substrate, a first adhesive layer, a third glass substrate, a second adhesive layer, and a second glass substrate, followed by compression molding. The average stress of the laminated glass in each of Examples 6 to 10 and Comparative Examples 6 to 10 is 25 MPa. Each of Examples 11 to 15 and Comparative Examples 11 to 15 is laminated glass obtained by sequentially stacking a first glass substrate, a first adhesive layer, a first functional layer, an adhesive layer, a second functional layer, a second adhesive layer, and a second glass substrate, followed by compression molding. The average stress of the laminated glass in each of Examples 11 to 15 and Comparative Examples 11 to 15 was 25 MPa.

[0070] In Examples 1 to 15 and Comparative Examples 1 to 15, the average stress was calculated as follows: two points were taken on each side of the laminated glass. That is, a total of eight points were taken on the four sides of the laminated glass, and the stress was tested at each point using a stress meter. The average stress of the laminated glass was calculated by averaging the stresses at the eight points. When two points were taken on one side of the laminated glass, the side of the laminated glass was divided into three equal parts by the two points.

[0071] In Examples 1 to 15 and Comparative Examples 1 to 15, the method for measuring the maximum static pressure is specified in accordance with the Chinese national standard GB / T5137.1. The laminated glass in each of Examples 1 to 15 and Comparative Examples 1 to 15 of the present application is suspended and fixed in place. Force is applied using a universal testing machine within a range of 40 mm from the center of the laminated glass until the laminated glass breaks. The force value at which the laminated glass breaks is recorded to obtain the maximum static pressure of the laminated glass.

[0072] [Table 1]

[0073] As shown in Table 1, in Example 1, the thickness of the first adhesive layer is smaller than the thickness of the second adhesive layer, and the thickness of the first glass substrate is larger than the thickness of the second glass substrate. In contrast, in Comparative Example 1, the thickness of the first adhesive layer is equal to the thickness of the second adhesive layer, and the thickness of the first glass substrate is equal to the thickness of the second glass substrate. Furthermore, the sum of the thicknesses of the first adhesive layer and the second adhesive layer in Example 1 is equal to the sum of the thicknesses of the first adhesive layer and the second adhesive layer in Comparative Example 1. The total thickness of the first glass substrate and the second glass substrate in Example 1 is smaller than the total thickness of the first glass substrate and the second glass substrate in Comparative Example 1.

[0074] However, in the maximum static pressure test, the maximum static pressure in Example 1 was greater than that in Comparative Example 1. The reason for this is as follows: In the maximum static pressure test, the external impact first acts on the first glass substrate, is absorbed by the first glass substrate, and then transmitted to the second glass substrate. The first glass substrate absorbs most of the impact force, while the second glass substrate absorbs relatively less of it. Therefore, even though the second glass substrate in Comparative Example 1 is thicker, the second glass substrate did not show any significant gain. After the laminated glass is subjected to an external impact, the external pressure causes deformation of the laminated glass. When external pressure acts on the laminated glass, it acts directly on the first glass substrate. In this case, the first adhesive layer is designed to be relatively thin, which is beneficial to ensuring the stability of the connection between the first glass substrate and other components in the laminated glass. When the external impact then reaches the second adhesive layer, the impact is gradually weakened. In this case, the second adhesive layer is designed to be relatively thick and relatively low in hardness. This allows deformation of the laminated glass due to external pressure to be absorbed, achieving a buffering effect and improving the stability of the entire laminated glass. Therefore, compared to Comparative Example 1, Example 1 has a larger maximum static pressure value and better structural stability.

[0075] In the controls formed by Example 2 and Comparative Example 2, and the controls formed by Example 3 and Comparative Example 3, the first adhesive layers of the laminated glass for the controls are the same, and the second adhesive layers of the laminated glass for the controls are the same. In each of Example 2 and Example 3, the thickness of the first glass substrate is greater than the thickness of the second glass substrate. In each of Comparative Examples 2 and 3, the thickness of the first glass substrate is less than the thickness of the second glass substrate. Furthermore, the sum of the thicknesses of the first and second glass substrates in Example 2 is equal to the sum of the thicknesses of the first and second glass substrates in Comparative Example 2. The sum of the thicknesses of the first and second glass substrates in Example 3 is equal to the sum of the thicknesses of the first and second glass substrates in Comparative Example 3. In the maximum static pressure test, the maximum static pressure in Example 2 was greater than the maximum static pressure in Comparative Example 2, and the maximum static pressure in Example 3 was greater than the maximum static pressure in Comparative Example 3. This demonstrates the following: When the first adhesive layer and the second adhesive layer are the same, impacts due to external pressure are received and absorbed by the first glass substrate and then transmitted to the second glass substrate. The first glass substrate absorbs most of the impact force, while the second glass substrate absorbs relatively little of it. Even when the total thickness of the first and second glass substrates in Example 2 is equal to the total thickness of the first and second glass substrates in Comparative Example 2, and even when the total thickness of the first and second glass substrates in Example 3 is equal to the total thickness of the first and second glass substrates in Comparative Example 3, the second glass substrate did not significantly improve the overall strength of the laminated glass. Therefore, Example 2 has a larger maximum static pressure value and better structural stability than Comparative Example 2. Example 3 has a larger maximum static pressure value and better structural stability than Comparative Example 3.

[0076] In the controls formed by Example 4 and Comparative Example 4, and the controls formed by Example 5 and Comparative Example 5, the first glass substrates of the laminated glass for the controls are the same, and the second glass substrates of the laminated glass for the controls are the same. In each of Example 4 and Example 5, the thickness of the first adhesive layer is smaller than the thickness of the second adhesive layer. In each of Comparative Examples 4 and 5, the thickness of the first adhesive layer is larger than the thickness of the second adhesive layer. Furthermore, the sum of the thicknesses of the first and second glass substrates in Example 4 is equal to the sum of the thicknesses of the first and second glass substrates in Comparative Example 4. The sum of the thicknesses of the first and second glass substrates in Example 5 is equal to the sum of the thicknesses of the first and second glass substrates in Comparative Example 5. In the maximum static pressure test, the maximum static pressure in Example 4 was greater than the maximum static pressure in Comparative Example 4, and the maximum static pressure in Example 5 was greater than the maximum static pressure in Comparative Example 5. This demonstrates the following: When the first and second glass substrates are the same, the laminated glass is deformed by the external pressure after it is subjected to an impact. When external pressure acts on the laminated glass, it acts directly on the first glass substrate. In this case, the first adhesive layer is designed to be relatively thin, which is advantageous for ensuring the stability of the connection between the first glass substrate and other components of the laminated glass. When the external pressure subsequently reaches the second adhesive layer, the impact is gradually weakened. In this case, the second adhesive layer is designed to be relatively thick and have a relatively low hardness. This allows the deformation of the laminated glass due to external pressure to be absorbed, achieving a buffering effect and improving the stability of the entire laminated glass. Therefore, Example 4 has a larger maximum static pressure value and better structural stability than Comparative Example 4. Example 5 has a larger maximum static pressure value and better structural stability than Comparative Example 5.

[0077] [Table 2]

[0078] As shown in Table 2, in Example 6, the thickness of the first adhesive layer is smaller than the thickness of the second adhesive layer. The thickness of the first glass substrate is greater than the thickness of the third glass substrate, which is greater than the thickness of the second glass substrate. In contrast, in Comparative Example 6, the thickness of the first adhesive layer is equal to the thickness of the second adhesive layer. The thicknesses of the first glass substrate, the third glass substrate, and the second glass substrate are the same. Furthermore, the sum of the thicknesses of the first adhesive layer and the second adhesive layer in Example 6 is equal to the sum of the thicknesses of the first adhesive layer and the second adhesive layer in Comparative Example 6. The sum of the thicknesses of the first glass substrate, the third glass substrate, and the second glass substrate in Example 6 is equal to the sum of the thicknesses of the first glass substrate, the third glass substrate, and the second glass substrate in Comparative Example 1.

[0079] However, in the maximum static pressure test, the maximum static pressure in Example 6 was greater than that in Comparative Example 6. The reason for this is as follows: In the maximum static pressure test, the external impact first acts on the first glass substrate, is absorbed by the first glass substrate, and is then transmitted to the third and second glass substrates. The first glass substrate absorbs most of the impact force, while the third and second glass substrates absorb relatively less of it. Therefore, even though the second glass substrate in Comparative Example 6 is thicker than the glass substrate in Example 1, the second glass substrate did not show any significant gain. After the laminated glass is subjected to an external impact, the external pressure causes deformation of the laminated glass. When external pressure acts on the laminated glass, it acts directly on the first glass substrate. In this case, the first adhesive layer is designed to be relatively thin, which is advantageous for ensuring the stability of the connection between the first glass substrate and other components in the laminated glass. When the external pressure impacts the second adhesive layer, the impact is gradually weakened. In this case, the second adhesive layer is designed to be relatively thick and relatively low in hardness. This allows the deformation of the laminated glass due to the external pressure to be absorbed, achieving a buffering effect and improving the stability of the entire laminated glass. Therefore, compared to Comparative Example 6, Example 6 has a larger maximum static pressure and better structural stability.

[0080] In the control formed by Example 7 and Comparative Example 7, the control formed by Example 8 and Comparative Example 8, the control formed by Example 9 and Comparative Example 9, and the control formed by Example 10 and Comparative Example 10, the first adhesive layers of the laminated glass for the control are the same, and the second adhesive layers of the laminated glass for the control are the same.

[0081] In each of Examples 7, 8, 9, and 10, the thickness of the first glass substrate is greater than the thickness of the third glass substrate, which is greater than the thickness of the second glass substrate. In each of Comparative Examples 7, 8, 9, and 10, the thickness of the first glass substrate is less than the thickness of the third glass substrate, which is less than the thickness of the second glass substrate. In addition, the sum of the thicknesses of the first, third, and second glass substrates in Example 7 is equal to the sum of the thicknesses of the first, third, and second glass substrates in Comparative Example 7. In Example 8, the sum of the thicknesses of the first, third, and second glass substrates is equal to the sum of the thicknesses of the first, third, and second glass substrates in Comparative Example 8. The sum of the thicknesses of the first glass substrate, the third glass substrate, and the second glass substrate in Example 9 is equal to the sum of the thicknesses of the first glass substrate, the third glass substrate, and the second glass substrate in Comparative Example 9. The sum of the thicknesses of the first glass substrate, the third glass substrate, and the second glass substrate in Example 10 is equal to the sum of the thicknesses of the first glass substrate, the third glass substrate, and the second glass substrate in Comparative Example 10.

[0082] In the maximum static pressure test, the maximum static pressure in Example 7 was greater than that in Comparative Example 7, the maximum static pressure in Example 8 was greater than that in Comparative Example 8, the maximum static pressure in Example 9 was greater than that in Comparative Example 9, and the maximum static pressure in Example 10 was greater than that in Comparative Example 10. This demonstrates the following: When the first adhesive layer and the second adhesive layer are the same, an impact caused by external pressure is received and absorbed by the first glass substrate and then transmitted to the third glass substrate and the second glass substrate. The first glass substrate absorbs most of the impact force, while the third glass substrate and the second glass substrate absorb relatively little of the impact force. Although the thickness of the second glass substrate in Example 7 was smaller than that of the second glass substrate in Comparative Example 7 and the thickness of the second glass substrate in Example 8 was smaller than that of the second glass substrate in Comparative Example 8, the second glass substrate did not show any significant gain in improving the overall strength of the laminated glass. Therefore, Example 7 has a larger maximum static pressure value and better structural stability than Comparative Example 7. Example 8 has a larger maximum static pressure value and better structural stability than Comparative Example 8.

[0083] In summary, when multiple glass substrates and multiple adhesive layers are alternately stacked to produce laminated glass, the multiple glass substrates are arranged so that their thicknesses gradually decrease in one direction, and the multiple adhesive layers are arranged so that their thicknesses gradually increase in the other direction. Provided that the total thickness of the laminated glass is determined, a laminated glass with higher structural stability can be obtained. In other words, provided that the needs for structural stability are determined, a laminated glass that uses less material and is lighter can be obtained.

[0084] [Table 3]

[0085] As shown in Table 3, in Example 11, the thickness of the first adhesive layer is smaller than the thickness of the second adhesive layer, and the thickness of the first glass substrate is larger than the thickness of the second glass substrate. In contrast, in Comparative Example 11, the thickness of the first adhesive layer is equal to the thickness of the second adhesive layer, and the thickness of the first glass substrate is equal to the thickness of the second glass substrate. Furthermore, the sum of the thicknesses of the first adhesive layer and the second adhesive layer in Example 11 is equal to the sum of the thicknesses of the first adhesive layer and the second adhesive layer in Comparative Example 11. The total thickness of the first glass substrate and the second glass substrate in Example 1 is smaller than the total thickness of the first glass substrate and the second glass substrate in Comparative Example 1.

[0086] However, in the maximum static pressure test, the maximum static pressure in Example 11 was greater than that in Comparative Example 11. The reason for this is as follows: In the maximum static pressure test, the external impact first acts on the first glass substrate, is absorbed by the first glass substrate, and then transmitted to the second glass substrate. The first glass substrate absorbs most of the impact force, while the second glass substrate absorbs relatively less of it. Therefore, even though the second glass substrate in Comparative Example 11 is thick, the second glass substrate did not show any significant gain. After the laminated glass is subjected to an external impact, the external pressure causes deformation of the laminated glass. When external pressure acts on the laminated glass, it acts directly on the first glass substrate. In this case, the first adhesive layer is designed to be relatively thin, which is advantageous for ensuring the stability of the connection between the first glass substrate and other components in the laminated glass. When the external impact then reaches the second adhesive layer, the impact is gradually weakened. In this case, the second adhesive layer is designed to be relatively thick and relatively low in hardness. This allows deformation of the laminated glass due to external pressure to be absorbed, achieving a buffering effect and improving the stability of the entire laminated glass. Therefore, compared to Comparative Example 11, Example 11 has a larger maximum static pressure and better structural stability.

[0087] In the controls formed by Example 12 and Comparative Example 12, and the controls formed by Example 13 and Comparative Example 13, the first adhesive layers of the laminated glass for the controls are the same, and the second adhesive layers of the laminated glass for the controls are the same. In each of Example 12 and Example 13, the thickness of the first glass substrate is greater than the thickness of the second glass substrate. In each of Comparative Examples 12 and 13, the thickness of the first glass substrate is less than the thickness of the second glass substrate. Furthermore, the sum of the thicknesses of the first and second glass substrates in Example 12 is equal to the sum of the thicknesses of the first and second glass substrates in Comparative Example 12. The sum of the thicknesses of the first and second glass substrates in Example 13 is equal to the sum of the thicknesses of the first and second glass substrates in Comparative Example 13. In a maximum static pressure test, the maximum static pressure in Example 12 was greater than the maximum static pressure in Comparative Example 12, and the maximum static pressure in Example 13 was greater than the maximum static pressure in Comparative Example 13. This indicates the following: When the first adhesive layer and the second adhesive layer are the same, an impact due to external pressure is received and absorbed by the first glass substrate and then transmitted to the second glass substrate. The first glass substrate absorbs most of the impact force, and the second glass substrate absorbs relatively little of it. Even when the total thickness of the first glass substrate and the second glass substrate in Example 12 is equal to the total thickness of the first glass substrate and the second glass substrate in Comparative Example 12, and even when the total thickness of the first glass substrate and the second glass substrate in Example 13 is equal to the total thickness of the first glass substrate and the second glass substrate in Comparative Example 13, the second glass substrate did not show any significant gain in improving the overall strength of the laminated glass. Therefore, Example 12 has a larger maximum static pressure value and better structural stability than Comparative Example 12. Example 13 has a larger maximum static pressure value and better structural stability than Comparative Example 13.

[0088] In the control formed by Example 14 and Comparative Example 14, and the control formed by Example 15 and Comparative Example 15, the first glass substrates of the laminated glass for the control are the same, and the second glass substrates of the laminated glass for the control are the same. In each of Example 14 and Example 15, the thickness of the first adhesive layer is smaller than the thickness of the second adhesive layer. In each of Comparative Examples 14 and 15, the thickness of the first adhesive layer is larger than the thickness of the second adhesive layer. Furthermore, the sum of the thicknesses of the first and second glass substrates in Example 14 is equal to the sum of the thicknesses of the first and second glass substrates in Comparative Example 14. The sum of the thicknesses of the first and second glass substrates in Example 15 is equal to the sum of the thicknesses of the first and second glass substrates in Comparative Example 15. In a maximum static pressure test, the maximum static pressure in Example 14 was greater than the maximum static pressure in Comparative Example 14, and the maximum static pressure in Example 15 was greater than the maximum static pressure in Comparative Example 15. This demonstrates the following: When the first and second glass substrates are the same, after the laminated glass is subjected to an external pressure impact, the external pressure will cause the laminated glass to deform. When external pressure acts on the laminated glass, the external pressure acts directly on the first glass substrate. In this case, the first adhesive layer is designed to be relatively thin, which is advantageous for ensuring the stability of the connection between the first glass substrate and other components of the laminated glass. When the external pressure impact subsequently reaches the second adhesive layer, the impact is gradually weakened. In this case, the second adhesive layer is designed to be relatively thick and have a relatively low hardness. This allows the deformation of the laminated glass due to external pressure to be absorbed, achieving a buffering effect and improving the stability of the entire laminated glass. Therefore, Example 14 has a larger maximum static pressure value and better structural stability than Comparative Example 14. Example 15 has a larger maximum static pressure value and better structural stability than Comparative Example 15.

[0089] 4, the present application further provides a vehicle 200. The vehicle 200 includes a vehicle body 9 and a laminated glass 100 according to the present application. The first glass substrate 1 faces the exterior of the vehicle body 9, and the second glass substrate 5 faces the interior of the vehicle body 9.

[0090] In the laminated glass 100 according to the present application, by increasing the thickness of the side of the laminated glass 100 to which stress is applied and decreasing the thickness of the side of the laminated glass 100 to which stress is not applied, the mechanical strength of the entire laminated glass 100 can be improved and the weight of the laminated glass 100 can be reduced. The laminated glass 100 according to the present application is installed in the window of a vehicle 200 according to the present application. The window has high strength and good safety performance parameters. Furthermore, by reducing the weight of the window and thereby reducing the vehicle weight of the vehicle 200, the energy consumption of the vehicle 200 can be reduced. Furthermore, the vehicle 200 has a better sound insulation effect.

[0091] The term "embodiment" or "embodiment" used in this application means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of this application. The appearance of such a term anywhere in the specification does not necessarily refer to the same embodiment, nor does it refer to an independent or alternative embodiment that is mutually exclusive with other embodiments. Those skilled in the art can explicitly or implicitly understand that the embodiment of this application can be combined with other embodiments. It should be further understood that the features, structures, or characteristics of the embodiment of this application can be arbitrarily combined, unless inconsistent, to form an embodiment that does not deviate from the spirit and scope of the technical solution of this application.

[0092] The above embodiments are only used to explain the technical solution of the present application, and do not limit the present application. Although the present application has been described in detail with reference to the above preferred embodiments, those skilled in the art should understand that any modifications or equivalent replacements made to the technical solution of the present application do not deviate from the spirit and scope of the technical solution of the present application. [Explanation of symbols]

[0093] 100... laminated glass, 200... vehicle, 1... first glass substrate, 2... first adhesive layer, 3... first functional layer, 4... second adhesive layer, 5... second glass substrate, 6... third glass substrate, 7... connecting layer, 8... second functional layer, 9... vehicle body.

Claims

1. Laminated glass, The laminated glass includes a first glass substrate, a first adhesive layer, a first functional layer, a second adhesive layer, and a second glass substrate; the first glass substrate, the first adhesive layer, the first functional layer, the second adhesive layer, and the second glass substrate are sequentially stacked; the thickness of the first glass substrate is greater than the thickness of the second glass substrate, and the thickness of the first adhesive layer is less than the thickness of the second adhesive layer; The laminated glass is characterized by:

2. the ratio of the thickness of the first glass substrate to the thickness of the second glass substrate is 1.17:1 to 2.91:1; 2. The laminated glass according to claim 1.

3. the ratio of the thickness of the first glass substrate to the thickness of the second glass substrate is 1.17:1 to 1.5:1; 3. The laminated glass according to claim 2.

4. The ratio of the thickness of the first adhesive layer to the thickness of the second adhesive layer is 1:8 to 1:1.1; 2. The laminated glass according to claim 1.

5. The mechanical strength of the first glass substrate is greater than the mechanical strength of the second glass substrate.

2. The laminated glass according to claim 1.

6. the hardness of the second adhesive layer is less than the hardness of the first adhesive layer; 2. The laminated glass according to claim 1.

7. The first functional layer is at least one of an infrared reflective layer, an ultraviolet absorbing layer, a touch film layer, a polymer dispersed liquid crystal (PDLC) film layer, and a display film; 2. The laminated glass according to claim 1.

8. the first functional layer is a third glass substrate, the thickness of the first glass substrate is greater than the thickness of the third glass substrate, and the thickness of the third glass substrate is greater than the thickness of the second glass substrate; The laminated glass according to any one of claims 1 to 6.

9. a ratio of a thickness of the first glass substrate to a thickness of the third glass substrate to a thickness of the second glass substrate is (2.91 to 2):(2 to 1.17):1; 9. The laminated glass according to claim 8.

10. a ratio of a thickness of the first glass substrate to a thickness of the third glass substrate to a thickness of the second glass substrate is (1.5 to 1.3):(1.3 to 1.17):1; 10. The laminated glass according to claim 9.

11. the mechanical strength of the first glass substrate is greater than the mechanical strength of the third glass substrate, and the mechanical strength of the third glass substrate is greater than the mechanical strength of the second glass substrate; 9. The laminated glass according to claim 8.

12. The laminated glass further includes a second functional layer and a connecting layer, the second functional layer is provided between the first functional layer and the second adhesive layer, and the connection layer is provided between the first functional layer and the second functional layer and is configured to connect the first functional layer and the second functional layer. The laminated glass according to any one of claims 1 to 7.

13. The thickness of the first functional layer is greater than the thickness of the second functional layer.

13. The laminated glass according to claim 12.

14. The ratio of the thickness of the first functional layer to the thickness of the second functional layer is 2:1 to 3:

1.

13. The laminated glass according to claim 12.

15. the hardness of the first functional layer is greater than the hardness of the second functional layer; 13. The laminated glass according to claim 12.

16. The thickness of the connection layer is 0.1 mm to 0.4 mm; 13. The laminated glass according to claim 12.

17. The thickness of the connection layer is 0.1 mm to 0.2 mm; 17. The laminated glass according to claim 16.

18. The second functional layer is at least one of an infrared reflective layer, an ultraviolet absorbing layer, a touch film layer, a polymer dispersed liquid crystal (PDLC) film layer, and a display film; 13. The laminated glass according to claim 12.

19. The laminated glass further includes a touch film layer, the touch film layer being disposed between the second glass substrate and the second adhesive layer, and the touch film layer being configured to detect a touch signal.

13. The laminated glass according to claim 12.

20. A vehicle, The vehicle body, The laminated glass according to any one of claims 1 to 19, The first glass substrate faces the exterior of the vehicle body, and the second glass substrate faces the interior of the vehicle body. A vehicle characterized by:

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