Laminated glass, vehicle window glass and vehicle

Abstract

The laminated glass, the window glass of the vehicle, and the vehicle are such that the laminated glass includes a first glass plate 1 and a second glass plate 2, and the sealing end portion fitted to the sealing member of the laminated glass has a first end face 14 located at the end of the first glass plate and a second end face 24 located at the end of the second glass plate. A deviation is formed between the first end face and the second end face along the stretching direction of the laminated glass. At least one of the first end face and the second end face is an arcuate end face 25, and the radius of the arcuate end face satisfies t / 2 < R < 3t, where R refers to the radius of the arcuate end face 25 and t refers to the thickness of the first glass plate 1 or the thickness of the second glass plate 2. The present disclosure can avoid the problem of reducing the extrusion force between the laminated glass and the sealing member and reducing the service life, enhance the stability and smooth movement of the laminated glass itself, prevent the generation of unnecessary slide noise, and improve the vehicle NVH performance.

Description

[Technical Field]

[0001] (CROSS-REFERENCE TO RELATED APPLICATIONS) This application claims priority from a Chinese patent application filed on January 13, 2023, bearing application number 202310065236.2, and the contents disclosed in the above patent application are incorporated herein by reference.

[0002] This application relates to the field of glass technology, and in particular to laminated glass and vehicle glazing.

[0003] This application relates to the vehicle field, and more particularly to vehicles. [Background technology]

[0004] Laminated glass is widely used as window glass for vehicles or buildings because it does not scatter fragments when broken and is therefore highly safe. However, since the edges of the laminated glass must be fitted with a sealing member such as a sealing strip, the edges push out the sealing member. When the laminated glass slides, for example, in a vehicle window glass that needs to be raised or lowered, not only is there a pushing force but also a frictional force between the edges and the sealing member, which not only causes the sealing strip to be easily worn out and shortens the service life, but also affects the stability of the laminated glass itself and increases the resistance when the laminated glass moves. Summary of the Invention [Problem to be solved by the invention]

[0005] The present application aims to provide a laminated glass, a vehicle window glass, and a vehicle that solves the technical problems of the existing laminated glass, in which the extrusion force between the edge of the laminated glass and the sealing member is too large, causing the sealing strip to wear, shortening its service life, reducing the stability of the laminated glass itself, and increasing the resistance it experiences when moving.

[0006] The above object of the present application can be achieved by adopting the following technical solutions.

Means for Solving the Problem

[0007] This application includes a first glass plate and a second glass plate which are stacked and installed, an adhesive layer is provided between the first glass plate and the second glass plate, and it has a sealing end portion fitted to a sealing member. The sealing end portion includes a first end face located at the end of the first glass plate and a second end face located at the end of the second glass plate, and it is a laminated glass. A deviation is formed between the first end face and the second end face along the stretching direction of the laminated glass. At least one of the first end face and the second end face includes an arcuate end face, and the radius of the arcuate end face satisfies t / 2 < R < 3t, where R refers to the radius of the arcuate end face and t refers to the thickness of the first glass plate or the second glass plate, and provides a laminated glass.

[0008] In an embodiment of this application, the arcuate end face is located at the second end face, the chord length direction of the arcuate end face is not parallel to the thickness direction of the second glass plate, and it satisfies t2 / 2 < R2 < 3t2, where R2 refers to the radius of the arcuate end face and t2 refers to the thickness of the second glass plate.

[0009] In an embodiment of this application, the first end face is a semi-circular end face.

[0010] In an embodiment of this application, the recession distance of the second end face with respect to the first end face is the deviation E, and 0.5mm < E < 3mm.

[0011] In an embodiment of this application, the vertical distance A between the tangent point between the first end face and the second end face and the contact point on the first end face, and the point on the second end face closest to the contact point is 0.6mm to 2.2mm, and the vertical distance B between the intersection point of the tangent line and the extension line of the outer surface of the second glass plate and the contact point is 0.7mm to 2.9mm.

[0012] In an embodiment of this application, the vertical distance A is 1.06mm to 1.6mm, and the vertical distance B is 1.45mm to 1.9mm.

[0013] In the embodiment of the present application, the vertical distance A is in the range of 1.23 mm to 1.4 mm, and the vertical distance B is in the range of 1.68 mm to 1.9 mm.

[0014] In the embodiment of the present application, the vertical distance A is in the range of 1.74 mm to 1.93 mm, and the vertical distance B is in the range of 2.32 mm to 2.54 mm.

[0015] In the embodiment of the present application, the tangent line and the extension line intersect to form an included angle C, and the radius of the second end face is R2, then the included angle C=2*arctan(R2 / (R2-(BA))).

[0016] In the embodiment of the present application, the included angle is 110° to 140°.

[0017] In the embodiment of the present application, the included angle is 111.0° to 117.2°.

[0018] In the embodiment of the present application, the included angle is 122.4° to 126.9°.

[0019] In the embodiment of the present application, the included angle is 134.4° to 137.4°.

[0020] In an embodiment of the present application, the second glass plate has a thickness smaller than that of the first glass plate, and the first glass plate is provided facing the side of the laminated glass that receives a larger external load.

[0021] In an embodiment of the present application, the thickness of the first glass sheet is greater than 2.8 mm, and the thickness of the second glass sheet is less than 1.4 mm.

[0022] In an embodiment of the present application, the tangent line between the first end surface and the second end surface forms a limiting boundary, and the edge of the adhesive layer is positioned so as not to exceed the limiting boundary.

[0023] In an embodiment of the present application, the inner surface of the second glass plate facing the first glass plate is transitionally connected to the second end surface via a third end surface, and the third end surface has a radius smaller than that of the arc-shaped end surface.

[0024] The present application provides a vehicle window glass manufactured from the above laminated glass.

[0025] The present application provides a vehicle including the laminated glass. [Effects of the Invention]

[0026] The features and advantages of the present application are as follows:

[0027] In the laminated glass, vehicle window glass, and vehicle according to the present application, the edge faces of two glass sheets are offset along the stretching direction, and at least one edge face has an arc-shaped edge face, the radius of which is greater than half the thickness of the glass sheets and less than three times the thickness of the glass sheets, so that the extrusion force between the laminated glass and the sealing member meets the design requirements, avoiding the problem of the sealing member being easily worn and shortening its service life due to an excessively large extrusion force between the laminated glass and the sealing member, and also improving the stability and smoothness of the movement of the laminated glass itself, preventing the generation of unnecessary sliding noise, and improving the NVH performance of the vehicle.

[0028] In the following, in order to more clearly explain the technical solutions of the embodiments of the present application, a brief description will be given of the drawings used in the description of the embodiments. However, the drawings described below are only some of the embodiments of the present application, and it goes without saying that other drawings can be obtained based on these drawings without requiring any innovative ingenuity by ordinary skilled persons in the technical field of this invention. [Brief explanation of the drawings]

[0029] [Figure 1] Schematic diagram of the structure of laminated glass according to the present application [Figure 2] Partially enlarged schematic diagram of laminated glass according to the present application. [Figure 3] 1 is a schematic diagram of the included angle in laminated glass according to the present application (adhesive layer omitted). DETAILED DESCRIPTION OF THE INVENTION

[0030] Next, based on the drawings according to the embodiments of the present application, the technical solutions according to the embodiments of the present application will be clearly and completely described. However, these embodiments are only some of the embodiments of the present application, not all of them. It should be understood that all other embodiments obtained by those of ordinary skill in the technical field of this invention without any inventive work based on the embodiments according to the present application all fall within the protection scope of the present application.

[0031] As shown in FIGS. 1 and 2, the laminated glass according to the present application includes a first glass plate 1 and a second glass plate 2 that are laminated and installed. An adhesive layer 3 is provided between the first glass plate 1 and the second glass plate 2. The laminated glass has a sealing end portion that is fitted to a sealing member. The sealing end portion includes a first end face 14 located at the end portion 11 of the first glass plate 1 and a second end face 24 located at the end portion 21 of the second glass plate 2. Along the stretching direction S of the laminated glass, a displacement E is formed between the first end face 14 and the second end face 24, and at least one of the first end face 14 and the second end face 24 includes an arcuate end face.

[0032] The laminated glass according to the present application is configured such that the radius of the arcuate end face satisfies t / 2 < R < 3t (where R refers to the radius of the arcuate end face and t refers to the thickness of the corresponding glass plate). By reducing the extrusion force between the laminated glass and the sealing member, the problem that the extrusion force between the laminated glass and the sealing member is too large and the sealing member is easily worn and its service life is reduced can be avoided, and the stability and smoothness of movement of the laminated glass itself can be enhanced.

[0033] Although it is difficult to directly measure the extrusion force between the laminated glass and the sealing member, considering that the sealing member fits against the extrusion force when mounting the laminated glass, the smaller the mounting force when mounting the laminated glass, the smaller the extrusion force between the laminated glass and the sealing member. Therefore, the mounting force of the laminated glass can be selected as an index for evaluating the extrusion force improvement effect. For example, by inserting the window glass of a vehicle made of laminated glass between two sealing strips of the vehicle door body along its lifting direction, the front end and the rear end of the vehicle window glass are sealing-slide-fitted to the two sealing strips along the lifting direction.

[0034] In the embodiment of the present application, the first glass plate 1 extends outward compared to the second glass plate 2 to form a deviation E, and the arcuate end face 25 satisfying the above conditions is located on the second end face 24, and the radius of the arcuate end face 25 may be R2. In order to further explain that the present application achieves the adjustment effect of the extrusion force by adjusting the radius R2 of the arcuate end face, the following table shows the comparison of the mounting forces of three preferred embodiments and two comparative examples of the present application in which all other parameters are the same but only the radius R2 of the arcuate end face is different. Here, the deviation E is 1.5 mm in all cases, and the thickness t2 of the second glass plate 2 is 1 mm in all cases.

[0035]

Table 1

[0036] As can be seen from this, when the radius R2 satisfies t2 / 2 < R2 < 3t2, that is, 0.5 mm < R2 < 3 mm, the mounting force significantly decreases compared to R2 ≤ 0.5 mm and R2 ≥ 3 mm.

[0037] In related art, the edges of the two glass sheets of a laminated glass that are fitted with the sealing member are also formed with arcuate edge surfaces (also called polished edges) to prevent localized stress accumulation, reduce wear on the sealing member, and increase the strength of the glass sheets. However, both surfaces are flush (i.e., there is no offset between the two glass sheets), and the arcuate edge surfaces are semicircular, i.e., the radius of the arcuate edge surface is equal to half the thickness of the glass sheet. In contrast, in the embodiment of the present application, to further improve the effect of the extrusion force, the direction of the chord length L of the arcuate edge surface 25 is not parallel to the direction of the thickness t2 of the second glass sheet 2. Furthermore, under these conditions, the radius R2 of the arcuate edge surface 25 is adjusted to optimize the extrusion force between the laminated glass and the sealing member. Based on these adjustment concepts, the extrusion force between the laminated glass and the sealing member is adjusted to meet requirements.

[0038] For the convenience of description, an arcuate end face 25 that satisfies the above conditions on the second glass plate 2 is defined as the second arcuate end face 25. The second arcuate end face 25 of the second glass plate 2 extends so as to be directly connected to the inner surface 23 of the second glass plate 2. That is, the second end face 24 can only include the second arcuate end face 25, and may further include a flat end face extending linearly. The second arcuate end face 25 is connected to the inner surface 23 through the flat end face. Of course, in order to prevent stress concentration on the side of the inner surface 23 of the second glass plate 2, it may be transitionally connected to the inner surface 23 of the second glass plate 2 through a third arcuate end face with a different radius. That is, the second end face 24 may further include a third arcuate end face. In one or more embodiments, the radius r of the third arcuate end face satisfies the relationship with the thickness t2 of the second glass plate that 0 < r < t2 / 2, or is in the range of 0 mm to about t2 / 3, or in the range of about 0 mm to about t2 / 4, or in the range of about 0 mm to about t / 5, or in the range of about t / 4 to about t / 3, or in the range of about t2 / 5 to about t2 / 4. In one embodiment, r may be 0.2 mm. By providing the third arcuate end face, the problem of easily cracking by forming a sharp corner at the above-mentioned transitionally connected position is avoided, and unnecessary damage to the mating component in contact with it, for example, the adhesive layer 3 provided between the first glass plate 1 and the second glass plate 2, can be avoided.

[0039] In order to quickly adjust to a better force-receiving state between the laminated glass and the sealing member, in one embodiment of the present application, the first end face 14 is a first arc-shaped end face, the first arc-shaped end face is a general arc-shaped end face, that is, a semi-circular end face, and the radius R1 of the first arc-shaped end face is equal to half of the thickness t1 of the first glass plate 1. In one or more embodiments, the radius R1 of the first arc-shaped end face may be formed to be greater than or less than half of the thickness t1 of the first glass plate 1. That is, the size of the first glass plate 1 is the same as the size of the glass plate in the laminated glass according to the related art and there is no need to adjust it at all. Only the extrusion force can be adjusted by the radius R2 of the second arc-shaped end face 25 of the second glass plate 2. In other possible embodiments of the present application, the first end face 14 may also form a chamfered polygonal end face with rounded corners, such as an isosceles trapezoid.

[0040] In the embodiment of the present application, the deviation E may be adjusted to further improve the extrusion force, but the deviation E according to the present application is in the range of 0.5 mm to 3.0 mm. By selecting any value within this range as the specific value of the deviation E, a more desirable improvement effect of the adjusted extrusion force can be achieved compared to values outside this range. The following table shows the comparison of the adhesion forces of three preferred embodiments, two comparative examples of the present application with the same other parameters but different deviations, and a comparative example without deviation. Here, the radius R2 of the second arc-shaped end face 25 is 1 mm in all cases.

[0041]

Table 2

[0042] As can be seen from this, when the radius R2 satisfies t2 / 2 < R2 < 3t2 and the deviation E is equal to 0.5 mm, equal to 3 mm, and when there is no deviation, that is, when the deviation E has a value outside the above range, compared with the case where the radius R2 satisfies t2 / 2 < R2 < 3t2 and the deviation E exceeds 0.5 mm and is less than 3 mm, the adhesion force significantly decreases and the extrusion force improvement effect is remarkable.

[0043] The present application discovered that further adjusting the offset E to form the laminated glass in the following state, as shown in Figure 3, can achieve a better improvement in the extrusion force between the laminated glass and the sealing member. As shown in Figure 3, in this state, the laminated glass has a tangent line F, which can be tangent to the first arc-shaped end face and the second arc-shaped end face 25. The vertical distance A between the tangent line and the first arc-shaped end face's tangent point M and the point N on the second arc-shaped end face 25 closest to the tangent line M can be 0.6 mm to 2.2 mm, and the vertical distance B between the tangent line M and the intersection point P of the tangent line F with the extension K of the outer surface of the second glass sheet 2 can be 0.7 mm to 2.9 mm.

[0044] The distance A in the present application may be specifically in the standard range of 1.06 mm to 1.6 mm, and the distance B may be specifically in the standard range of 1.45 mm to 1.9 mm.

[0045] The distance A according to the present application can be specifically in another standard range of 1.23 mm to 1.4 mm, and the distance B can be specifically in another standard range of 1.68 mm to 1.9 mm.

[0046] The distance A according to the present application can be specifically in another standard range of 1.74 mm to 1.93 mm, and the distance B can be specifically in another standard range of 2.32 mm to 2.54 mm.

[0047] By adjusting the offset E and the radius R2 of the second arc-shaped end face 25, the extrusion force between the laminated glass and the sealing member can be improved when the laminated glass is formed as follows: As shown in Figure 3, the tangent F intersects with the extension line K of the second glass sheet 2 (i.e., the extension direction S of the laminated glass) to form an included angle C. If the angle of the included angle C is C, the relationship of the included angle C = 2 * arctan(R2 / (R2-(B-A))) is satisfied. Since the distance A is related to the distance B and the offset E, the included angle C can be changed by adjusting the offset E and the radius R2. That is, the present application proposes to derive the included angle C based on the relationship between the extrusion force, the offset E, and the radius R2. Controlling the included angle C improves the extrusion force, so that the extrusion force can meet the requirements.

[0048] The included angle C according to the present application can have an angle in the range of 110° to 140°. By selecting any value within this range as the angle value of the included angle C, a better improvement effect can be achieved in the extrusion force after adjustment compared to values ​​outside this range.

[0049] The included angle C according to the present application can specifically be in the reference range of 111.0° to 117.2°.

[0050] The included angle C according to the present application may be in another reference range, specifically 122.4° to 126.9°.

[0051] The included angle C according to the present application may be in another reference range, specifically 134.4° to 137.4°.

[0052] The following table shows a comparison of the structural parameters and mounting strength of the laminated glass of six preferred embodiments of the present application, the laminated glass of two comparative examples, and the laminated glass of the comparative example without misalignment, when the radius R is all 1 mm and the thicknesses of the two glass layers are the same.

[0053] [Table 3]

[0054] As can be seen from the above table, the laminated glass of the six preferred embodiments of the present application has a significantly reduced mounting force compared to the laminated glass of the comparative example where there is no misalignment. Therefore, when the included angle C is in the range of 110° to 140°, particularly in the range of 111.0° to 117.2°, 122.4° to 126.9°, or 134.4° to 137.4°, the improvement in push-out force is significant. On the other hand, the laminated glass of the two comparative examples has a smaller reduction in mounting force compared to the laminated glass of the comparative example where there is no misalignment. Therefore, when the included angle C is less than 110° or more than 140°, the improvement in push-out force is small.

[0055] To further reduce the weight and manufacturing costs of the laminated glass, in the present embodiment, the thickness t2 of the second glass sheet 2 is less than the thickness t1 of the first glass sheet 1. By adjusting the offset E and the radius R of the arc-shaped edge, the strength and stability of the laminated glass can be improved by adjusting the offset E and the radius R of the arc-shaped edge, so that the strength and stability of the laminated glass can still meet the requirements even after the thickness t2 of the second glass sheet 2 is reduced.

[0056] In one or more embodiments, the thickness t1 of the first glass plate 1 is 1.6 mm to 5.0 mm, or in the range of 1.4 mm to about 3.85 mm, or in the range of about 1.4 mm to about 3.5 mm, or in the range of about 1.4 mm to about 3.0 mm, or in the range of about 1.4 mm to about 2.8 mm, or in the range of about 1.4 mm to about 2.5 mm, or in the range of about 1.4 mm to about 2.0 mm, or in the range of about 1.5 mm to about 3.85 mm, or in the range of about 1.5 mm to about 3.5 mm, or in the range of about 1.5 mm to about 3.0 mm, or It can be in the range of 1.5 mm to about 2.8 mm, or in the range of about 1.5 mm to about 2.5 mm, or in the range of about 1.5 mm to about 2.0 mm, or in the range of about 1.6 mm to about 3.85 mm, or in the range of about 1.6 mm to about 3.5 mm, or in the range of about 1.6 mm to about 3.0 mm, or in the range of about 1.6 mm to about 2.8 mm, or in the range of about 1.6 mm to about 2.5 mm, or in the range of about 1.6 mm to about 2.0 mm, or in the range of about 1.8 mm to about 3.5 mm, or in the range of about 2.0 mm to about 3.0 mm.

[0057] In one or more embodiments, the thickness t2 of the second glass plate 2 may be 0.5 mm to 1.4 mm. Alternatively, the thickness t2 of the second glass plate 2 may be in the range of about 0.2 mm to about 1.4 mm, or in the range of about 0.3 mm to about 1.4 mm, or in the range of about 0.4 mm to about 1.4 mm, or in the range of about 0.5 mm to about 1.4 mm, or in the range of about 0.1 mm to about 1.1 mm, or in the range of about 0.2 mm to about 1.1 mm, or in the range of about 0.1 mm to about 0.7 mm, or in the range of about 0.2 mm to about 0.7 mm. The thickness may be in the range of about 0.3 mm to about 0.7 mm, about 0.4 mm to about 0.7 mm, about 0.2 mm to about 0.6 mm, about 0.3 mm to about 0.6 mm, about 0.4 mm to about 0.6 mm, about 0.2 mm to about 0.5 mm, about 0.3 mm to about 0.5 mm, or about 0.2 mm to about 0.4 mm. The stretching direction S of the laminated glass in this application refers to the planar stretching direction of the laminated glass facing the sealing member. Since the sealing member to which the laminated glass is fitted can be formed in one or more pieces, the edge 11 and the edge 21 to be fitted to the sealing member provided corresponding to the first glass sheet 1 and the second glass sheet 2 may each be formed in one or more pieces. For example, when the front and rear ends of a vehicle window glass made of laminated glass are sealed, slid, and fitted into a sealing strip, the front end of the first glass sheet 1 is extended forward by a certain distance relative to the second glass sheet 2, and the rear end of the first glass sheet 1 is extended backward by a certain distance relative to the second glass sheet 2, so that there is a gap between both the front and rear ends of the first glass sheet 1 and the second glass sheet 2.

[0058] To maintain stability when using laminated glass, in an embodiment of the present application, the thicker first glass sheet 1 may be provided on the side of the laminated glass that receives a greater external load. For example, in a side window glass manufactured using laminated glass, the first glass sheet 1 is provided facing the outside of the vehicle and the second glass sheet 2 is provided facing the interior of the vehicle. This allows the thicker and stronger first glass sheet 1 to withstand a strong external load from outside the vehicle, and the relatively stable environment inside the vehicle cabin reduces the impact of the external load on the second glass sheet 2.

[0059] The opposing sides of the first glass plate 1 and the second glass plate 2 are the inner surface 13 of the first glass plate 1 and the inner surface 23 of the second glass plate 2, respectively, and the opposite sides are the outer surface 12 of the first glass plate 1 and the outer surface 22 of the second glass plate 2, respectively. The inner surface 13 of the first glass plate 1 and the inner surface 23 of the second glass plate 2 are bonded together by an adhesive layer 3. The material of the adhesive layer 3 may include, but is not limited to, polyvinyl butyral (PVB), polycarbonate (PC), sound-insulating PVB, light-blocking band PVB, heat-control PVB, ethylene vinyl acetate (EVA), thermoplastic polyurethane (TPU), polyacetal resin (POM), polybutylene terephthalate (PBT), polyethylene vinyl acetate ( PEVA ), polyethylene naphthalate (PEN), polyvinyl chloride (PVC), polyvinyl fluoride (PVF), polyacrylate (PA), polymethyl methacrylate (PMMA), and polyurethane foam (PUR) may be used. The thickness of the adhesive layer 3 may be 0.38 mm to 0.76 mm, and preferably 0.76 mm.

[0060] The position and shape of the end 31 of the adhesive layer 3 facing the sealing member are not specifically limited, but both sides of the adhesive layer 3 are configured to cover as much of the inner surface 13 of the first glass sheet 1 and the inner surface 23 of the second glass sheet 2 as possible so that the adhesive layer 3 can firmly bond the first glass sheet 1 and the second glass sheet 2. Meanwhile, in this embodiment of the present application, the end 31 of the adhesive layer 3 is provided with an edge 32, and the edge 11 of the first glass sheet 1 and the edge 21 of the second glass sheet 2 are connected to the edge 32 so that the force between the laminated glass and the sealing member can be more effectively received. Specifically, one end of the edge 32 extends to the first arc-shaped end face, and the other end of the edge 32 extends to the connection between the edge 21 of the second glass sheet 2 and its inner surface 23.

[0061] 2 and 3, a tangent line FP is formed between the first and second arc-shaped end surfaces 25. In one or more embodiments, the tangent line FP forms a limiting boundary, and the edge 32 of the end 31 of the adhesive layer 3 is positioned so as not to exceed the limiting boundary. This arrangement prevents the sealing member from contacting the adhesive layer 3, thereby avoiding disadvantages such as wear, increased resistance, and noise generation that would otherwise occur due to contact between the two.

[0062] In one or more embodiments, the edge 32 of the adhesive layer 3 may be in the form of a diagonal line or a shape recessed toward the center of the adhesive layer 3, and it should be understood that all of these fall within the scope of protection of the present application as long as the edge 32 of the adhesive layer 3 is positioned so as not to exceed the above-mentioned limit boundary. Specifically, the edge 32 of the adhesive layer 3 is formed in an oblique shape, which is advantageous for meeting the automated polishing requirements of industrial production and can achieve a better aesthetic effect than other embodiments of the present application.

[0063] The first glass sheet 1 and the second glass sheet 2 may be formed from a variety of materials. According to one or more embodiments, the first glass sheet 1 and the second glass sheet 2 may be formed from the same or different materials. In exemplary embodiments, one or both of the first glass sheet 1 and the second glass sheet 2 may be glass (e.g., soda-lime glass, alkali aluminosilicate glass, alkali-containing borosilicate glass, and / or alkali aluminoborosilicate glass) or glass-ceramic. Examples of suitable glass-ceramics include glass-ceramics in the LiO-AlO-SiO system (i.e., LAS system), glass-ceramics in the MgO-AlO-SiO system (i.e., MAS system), and glass-ceramics containing crystalline phases, where the crystalline phase is mullite, spinel, or arsenic. α -quartz, β The laminated glass may have one or more crystalline phases selected from the group consisting of quartz solid solution, petalite, lithium disilicate, podumene, nepheline, and alumina. Meanwhile, one or both of the first glass sheet 1 and the second glass sheet 2 may be chemically tempered, thermally tempered, mechanically tempered, or a combination thereof. In one or more embodiments, the first glass sheet 1 is not tempered (meaning that it is not tempered by a chemical, thermal, or mechanical tempering process, but has an annealed substrate), and the second glass sheet 2 is tempered. In one or more embodiments, the first glass sheet 1 may be thermally tempered, and the second glass sheet 2 may be chemically tempered. Specifically, a combination of various tempering methods may be used to ensure that the laminated glass meets the strength requirements for installation in various vehicles, such as frameless glass door assemblies.

[0064] In one embodiment, the surface compressed stress (CS) of the chemically strengthened glass or glass-ceramic substrate can be 300 MPa or greater, e.g., 400 MPa or greater, 450 MPa or greater, 500 MPa or greater, 550 MPa or greater, 600 MPa or greater, 650 MPa or greater, 700 MPa or greater, 750 MPa or greater, or 800 MPa or greater. In one or more embodiments, the surface compressed stress (CS) of the strengthened glass or glass-ceramic substrate is the maximum compressed stress (CS).

[0065] The chemically strengthened glass or glass-ceramic substrate may have a depth of layers (DOL) of about 15 μm or more, 20 μm or more (e.g., 25 μm, 30 μm, 35 μm, 40 μm, 45 μm, 50 μm or more). In one or more embodiments, the strengthened glass or glass-ceramic substrate may have a maximum center tension (CT) value of 10 MPa or more, 20 MPa or more, 30 MPa or more, or 40 MPa or more (e.g., 42 MPa, 45 MPa, or 50 MPa or more), but should be less than 100 MPa (e.g., 95 MPa, 90 MPa, 85 MPa, 80 MPa, 75 MPa, 70 MPa, 65 MPa, 60 MPa, 55 MPa or less).

[0066] Chemical strengthening of thin glass allows the glass sheets to maintain high strength while remaining sufficiently thin, which is advantageous for reducing the overall weight of the laminated glass without destroying its functionality, allowing users to use vehicles more economically, or increasing the driving range of electric vehicles.

[0067] In one embodiment, the present application provides a vehicle window glass made of laminated glass. The laminated glass according to this embodiment has the same specific structure, operating principle, and beneficial effects as the laminated glass according to the first embodiment, so redundant description will be omitted here.

[0068] In one embodiment, the present application provides a vehicle including the above laminated glass. The laminated glass according to this embodiment has the same specific structure, operating principle, and beneficial effects as the laminated glass according to the first embodiment, so redundant description will be omitted here.

[0069] Although only some embodiments of the present application have been described above, those skilled in the art of the present invention may make various improvements or modifications to the embodiments of the present application without departing from the spirit and scope of the present application. [Explanation of symbols]

[0070] 1. First glass plate 11 End 12 External surface 13 Inner surface 14 First end surface 2 Second glass plate 21 End 22 External surface 23 Inner surface 24 Second end face 25 Circular arc end face 3 Adhesive layer 31 End 32 Edge

Claims

1. A laminated glass comprising a first glass plate and a second glass plate that are stacked together, an adhesive layer being provided between the first glass plate and the second glass plate, and a sealing edge that is fitted with a sealing member, the sealing edge including a first end surface located at an end of the first glass plate and a second end surface located at an end of the second glass plate, a gap is formed between the first end surface and the second end surface along the stretching direction of the laminated glass, at least one of the first end surface and the second end surface includes an arc-shaped end surface, the radius of the arc-shaped end surface satisfies t / 2<R<3t, where R is the radius of the arc-shaped end surface and t is the thickness of the first glass sheet or the second glass sheet; Laminated glass.

2. The arc-shaped end surface is located on the second end surface, and the chord length direction of the arc-shaped end surface and the thickness direction of the second glass sheet are not parallel to each other, and t ２ / 2<R ２ <3t ２ where R ２ indicates the radius of the arc-shaped end surface, and t ２ refers to the thickness of the second glass sheet, The laminated glass according to claim 1.

3. The laminated glass according to claim 2 , wherein the first end surface is a semicircular end surface.

4. 3. The laminated glass according to claim 2, wherein the offset E is a recess distance of the second end face relative to the first end face, and the offset E is 0.5 mm<E<3 mm.

5. a vertical distance A between a point where a tangent line between the first end face and the second end face contacts the first end face and a point on the second end face that is closest to the tangent line is 0.6 mm to 2.2 mm, and a vertical distance B between a point where the tangent line intersects with an extension of an outer surface of the second glass plate and the tangent line is 0.7 mm to 2.9 mm. The laminated glass according to claim 1 or 2.

6. 6. The laminated glass according to claim 5, wherein the vertical distance A is 1.06 mm to 1.6 mm, and the vertical distance B is 1.45 mm to 1.9 mm.

7. 6. The laminated glass according to claim 5, wherein the vertical distance A is in the range of 1.23 mm to 1.4 mm, and the vertical distance B is in the range of 1.68 mm to 1.9 mm.

8. 6. The laminated glass according to claim 5, wherein the vertical distance A is in the range of 1.74 mm to 1.93 mm, and the vertical distance B is in the range of 2.32 mm to 2.54 mm.

9. The tangent line and the extension line intersect to form an included angle C, and the radius of the second end surface is R ２ Then, the included angle C = 2 * arctan(R ２ / (R ２ -(B-A))), The laminated glass according to claim 4.

10. The laminated glass according to claim 8, wherein the included angle is 110° to 140°.

11. 10. The laminated glass according to claim 9, wherein the included angle is 111.0° to 117.2°.

12. 10. The laminated glass according to claim 9, wherein the included angle is 122.4° to 126.9°.

13. The laminated glass according to claim 9, wherein the included angle is 134.4° to 137.4°.

14. the second glass plate has a thickness smaller than that of the first glass plate; The first glass plate is provided facing a side of the laminated glass that is subjected to a larger external load. The laminated glass according to claim 2.

15. 15. The laminated glass of claim 14, wherein the first glass sheet has a thickness greater than 2.8 mm and the second glass sheet has a thickness less than 1.4 mm.

16. 2. The laminated glass according to claim 1, wherein a tangent line between the first end surface and the second end surface forms a limiting boundary, and an edge of the adhesive layer is positioned so as not to exceed the limiting boundary.

17. 2. The laminated glass according to claim 1, wherein an inner surface of the second glass plate facing the first glass plate is transitionally connected to the second end surface via a third end surface, and the third end surface has a radius smaller than that of the arc-shaped end surface.

18. A window glass for a vehicle, characterized in that it is made of the laminated glass according to any one of claims 1 to 17.

19. A vehicle comprising the laminated glass according to any one of claims 1 to 17.

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