Laminated glass, window glass, and vehicle

Abstract

The present invention discloses a laminated glass, a window glass and a vehicle, which comprise a first glass sheet and a second glass sheet; the sealing end of the laminated glass cooperating with the seal includes: a first end face located at the end of the first glass sheet and a second end face located at the end of the second glass sheet; along the extending direction of the laminated glass, there is an overlap difference between the first end face and the second end face, at least one of the first end face and the second end face includes an arc end face, and the radius of the arc end face satisfies the condition: t / 2 < R < 3t, where R is the radius of the arc end face and t is the thickness of the first glass sheet or the thickness of the second glass sheet. The present invention can reduce the extrusion force between the laminated glass and the seal, avoid the problem that the extrusion force between the laminated glass and the seal is too large, resulting in easy wear of the seal and shortening of the service life, and at the same time can improve the stability of the laminated glass itself and the smoothness of movement, avoid the occurrence of unnecessary sliding noise, and improve the NVH performance of the vehicle.

Description

Technical Field

[0001] The present invention relates to the technical field of glass, and particularly to a laminated glass and a window glass.

[0002] The present invention also relates to the field of transportation vehicles, and particularly to a vehicle. Background Art

[0003] Laminated glass is widely used in window glasses of vehicles or buildings, etc. because its fragments will not scatter when damaged and it has excellent safety. Since the end of the laminated glass needs to cooperate with a seal such as a sealing strip, the end will cause extrusion on the seal. And when the laminated glass needs to slide, such as a window glass that needs to be lifted or lowered, in addition to the extrusion force between the end and the seal, there is also a frictional force, which not only easily causes wear of the sealing strip and shortens its 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

[0004] The object of the present invention is to provide a laminated glass, a window glass and a vehicle to solve the technical problems that the extrusion force between the end of the current laminated glass and the seal is too large, resulting in wear of the sealing strip and shortening of its service life, and the stability of the laminated glass itself becomes poor and the resistance during movement increases.

[0005] The above object of the present invention can be achieved by the following technical solutions:

[0006] The present invention provides a laminated glass, including a first glass sheet and a second glass sheet stacked; there is an adhesive layer between the first glass sheet and the second glass sheet. The laminated glass has a sealing end that can cooperate with a seal. The sealing end includes: a first end face located at the end of the first glass sheet and a second end face located at the end of the second glass sheet; along the extending direction of the laminated glass, there is an overlap difference between the first end face and the second end face. At least one of the first end face and the second end face includes an arc end face, and the radius of the arc end face satisfies the following condition: t / 2 < R < 3t, where R is the radius of the arc end face and t is the thickness of the first glass sheet or the thickness of the second glass sheet.

[0007] In an embodiment of the present invention, the arc end face is located on the second end face. The chord length direction of the arc end face is not parallel to the thickness direction of the second glass sheet, and satisfies t2 / 2 < R2 < 3t2, where R2 is the radius of the arc end face and t2 is the thickness of the second glass sheet.

[0008] In an embodiment of the present invention, the first end face is a half-arc end face.

[0009] In an embodiment of the present invention, the indentation distance of the second end face relative to the first end face is the stack difference E, and there is: 0.5 mm < E < 3 mm.

[0010] In an embodiment of the present invention, there is a tangent line between the first end face and the second end face; the vertical distance A between the tangent point of the tangent line and the first end face and the point on the second end face closest to the tangent point is 0.6 mm to 2.2 mm; the vertical distance B between the intersection point of the tangent line and the extension line of the outer side of the second glass sheet and the tangent point is 0.7 mm to 2.9 mm.

[0011] In an embodiment of the present invention, 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.

[0012] In an embodiment of the present invention, the vertical distance A is 1.23 mm to 1.4 mm, and the vertical distance B is 1.68 mm to 1.9 mm.

[0013] In an embodiment of the present invention, the vertical distance A is 1.74 mm to 1.93 mm, and the vertical distance B is 2.32 mm to 2.54 mm.

[0014] In an embodiment of the present invention, the tangent line and the extension line intersect to form an angle ∠C, and the radius of the second end face is R2, then there is: ∠C = 2 * arctan(R2 / (R2 - (B - A))).

[0015] In an embodiment of the present invention, the angle is 110° to 140°.

[0016] In an embodiment of the present invention, the angle is 111.0° to 117.2°.

[0017] In an embodiment of the present invention, the angle is 122.4° to 126.9°.

[0018] In an embodiment of the present invention, the angle is 134.4° to 137.4°.

[0019] In an embodiment of the present invention, the thickness of the second glass sheet is less than the thickness of the first glass sheet, and the first glass sheet is arranged on the side of the insulating glass with a larger external load.

[0020] In an embodiment of the present invention, 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.

[0021] In an embodiment of the present invention, a tangent line between the first end face and the second end face forms a defined boundary; the edge of the adhesive layer is arranged not to exceed the defined boundary.

[0022] In an embodiment of the present invention, the inner side face of the second glass sheet opposite to the first glass sheet is transitionally connected to the second end face through a third end face, and the radius of the third end face is smaller than the radius of the arc end face.

[0023] The present invention also provides a vehicle window glass made of the above laminated glass.

[0024] The present invention also provides a vehicle including the above laminated glass.

[0025] The features and advantages of the present invention are:

[0026] For the laminated glass, vehicle window glass and vehicle of the present invention, by forming an overlap difference in the extending direction of the end faces of the two glass sheets, and then designing an arc end face on at least one end face, and the radius of the arc end face is greater than half of the thickness of the glass sheet and less than three times the thickness of the glass sheet, the extrusion force between the laminated glass and the seal can meet the design requirements, thereby avoiding the problem that the extrusion force between the laminated glass and the seal is too large, causing the seal to be easily worn and the service life to be shortened. At the same time, it can improve the stability of the laminated glass itself and the smoothness of movement, avoid the occurrence of unnecessary sliding noise, and improve the NVH performance of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0028] Figure 1 It is a schematic structural diagram of the laminated glass of the present invention.

[0029] Figure 2 It is a partially enlarged schematic diagram of the laminated glass of the present invention.

[0030] Figure 3 It is a schematic diagram of the included angle in the laminated glass of the present invention (the adhesive layer is omitted).

[0031] In the figure:

[0032] 1. First glass sheet; 11. End part; 12. Outer side face; 13. Inner side face; 14. First end face; 2. Second glass sheet; 21. End part; 22. Outer side face; 23. Inner side face; 24. Second end face; 25. Arc end face; 3. Adhesive layer; 31. End part; 32. Edge. Detailed implementation mode

[0033] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0034] As Figure 1 and Figure 2 shown, the present invention provides a laminated glass, which includes a first glass sheet 1 and a second glass sheet 2 arranged in a stacked manner; an adhesive layer 3 is provided between the first glass sheet 1 and the second glass sheet 2, and the laminated glass has a sealing end that can cooperate with a seal. The sealing end includes: a first end face 14 located at the end 11 of the first glass sheet 1, and a second end face 24 located at the end 21 of the second glass sheet 2; along the extension direction S of the laminated glass, a step difference 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 arc end face.

[0035] For the laminated glass of the present invention, by making the radius of the arc end face satisfy the following condition: t / 2 < R < 3t, where R is the radius of the arc end face and t is the thickness of the corresponding glass sheet; the extrusion force between the laminated glass and the seal is reduced, thereby avoiding the problem that the extrusion force between the laminated glass and the seal is too large, resulting in easy wear of the seal and shortening of the service life. At the same time, the stability of the laminated glass itself and the smoothness of movement can be improved.

[0036] Since it is difficult to directly measure the extrusion force between the laminated glass and the seal, and considering that the laminated glass is installed by overcoming this extrusion force to cooperate with the seal, it means that the smaller the installation force of the laminated glass during installation, the smaller the extrusion force between the laminated glass and the seal. Therefore, the installation force of the laminated glass can be selected as an index to evaluate the improvement effect of the extrusion force. For example, for a window glass made of laminated glass, the window glass is inserted between two sealing strips on the door body along its lifting direction, so that the front and rear ends of the window glass are in sealed sliding fit with the two sealing strips along the lifting direction.

[0037] In an embodiment of the present invention, the first glass sheet 1 extends outward relative to the second glass sheet 2 to form an overlap difference E. The arc end face 25 that meets the above conditions is located on the second end face 24, and the radius of the arc end face 25 is R2. In order to further illustrate the effect of adjusting the extrusion force by adjusting the radius R2 of the arc end face in the present invention, the following table shows the comparison of the installation forces of three preferred embodiments of the present invention and two comparative examples with different radii R2 of the arc end face while other parameters are the same. Among them, the overlap difference E is 1.5 mm and the thickness t2 of the second glass sheet 2 is 1 mm.

[0038] It can be seen from this that when the radius R2 satisfies t2 / 2 < R2 < 3t2, that is, 0.5 mm < R2 < 3 mm, compared with R2 ≤ 0.5 mm and compared with R2 ≥ 3 mm, the installation force is significantly reduced.

[0039] In the related art, in order to eliminate local stress concentration, reduce wear on the seal and enhance the strength of the glass sheet, arc end faces (also called edge grinding) are also provided at the ends of the two glass sheets in the laminated glass that cooperate with the seal. However, they are all flush-mounted (that is, there is no overlap difference between the two glass sheets), and the arc end faces are all semicircular arc end faces, that is, the radius of the arc end face is equal to half of the thickness of the glass sheet. In the embodiment of the present invention, in order to further improve the effect of the extrusion force, the direction of the chord length L of the arc end face 25 is not parallel to the direction of the thickness t2 of the second glass sheet 2. Further, by adjusting the radius R2 of the arc end face 25 under this condition, the extrusion force between the laminated glass and the seal is further optimized. Therefore, under this adjustment concept, the extrusion force between the laminated glass and the seal can be adjusted to meet the requirements of the extrusion force.

[0040] For the convenience of description, the arc end face 25 on the second glass sheet 2 that meets the above conditions is defined as the second arc end face 25. The second arc end face 25 of the second glass sheet 2 can directly extend to connect with the inner side face 23 of the second glass sheet 2, that is, the second end face 24 can only include the second arc end face 25, or can also include a flat end face that extends linearly, and the second arc end face 25 is connected to the inner side face 23 through this flat end face. Of course, in order to avoid stress concentration at the edge of the inner side face 23 of the second glass sheet 2, it can also be transitionally connected to the inner side face 23 of the second glass sheet 2 through a third arc end face with a different radius, that is, the second end face 24 can also include a third arc end face.

[0041] In one or more embodiments, the relationship between the radius r of the third arc end face and the thickness t2 of the second glass sheet may be 0 < r < t2 / 2, or 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 is 0.2 mm. By providing the third arc end face, it is possible to avoid the problem of easy breakage caused by the formation of sharp corners at the above-mentioned transition connection positions, and to avoid unnecessary damage to the mating member in contact therewith, such as the adhesive layer 3 provided between the first glass sheet 1 and the second glass sheet 2.

[0042] In order to be able to adjust the laminated glass and the seal to a better stress state more quickly, in one embodiment of the present invention, the first end face 14 is the first arc end face 14. The first arc end face 14 is a conventional arc end face, that is, a half-circle end face. The radius R1 of the first arc end face 14 is equal to half of the thickness t1 of the first glass sheet 1. In one or more embodiments, the radius R1 of the first arc end face 14 may be greater than or less than half of the thickness t1 of the first glass sheet 1, that is, the size of the first glass sheet 1 may be the same as the size of the glass sheet in the laminated glass in the related art without any adjustment, and the adjustment of the extrusion force can be achieved only by adjusting the radius R2 of the second arc end face 25 of the second glass sheet 2. In some other feasible embodiments of the present invention, the first end face 14 may also be a polygonal end face with a rounded corner transition, such as an isosceles trapezoid.

[0043] In the embodiments of the present invention, the adjustment of the overlap difference E is also combined to further improve the extrusion force. The present invention provides a range of the overlap difference E of 0.5 mm to 3.0 mm. By selecting a certain value from this range as the specific value of the overlap difference E, compared with the values outside the range, a better improvement effect of the adjusted extrusion force can be obtained. The following shows the comparison of the installation forces of a preferred embodiment of the present invention with two comparative examples and a comparative example without overlap difference, where the radius R2 of the second arc end face 25 is 1 mm in all cases and other parameters are the same except for the overlap difference.

[0044]

[0045] It can be seen from this that compared with the cases where the radius R2 satisfies t2 / 2 < R2 < 3t2, but the overlap difference E is equal to 0.5 mm, equal to 3 mm, and without overlap difference, that is, the cases where the overlap difference E is outside the above range, when the radius R2 satisfies t2 / 2 < R2 < 3t2, and the overlap difference E is greater than 0.5 mm and less than 3 mm, the reduction of the installation force is larger, that is, the improvement effect of the extrusion force is more obvious.

[0046] Such as Figure 3As shown in the figure, the present invention discovers that when the laminated glass is formed into the following state by further adjusting the overlap difference E, the extrusion force between the laminated glass and the sealant can be better improved. As Figure 3 shown, in this state, the laminated glass has a tangent line F, and the tangent line F is tangent to the first arc end face 14 and the second arc end face 25. The vertical distance A between the tangent point M of the tangent line F and the first arc end face 14 and the closest point N to the tangent point M on the second arc end face 25 is 0.6 mm to 2.2 mm. The vertical distance B between the intersection point P of the tangent line F and the extension line K of the outer side of the second glass sheet 2 and the tangent point M is 0.7 mm to 2.9 mm.

[0047] The present invention provides that a specific reference range for the vertical distance A is 1.06 mm to 1.6 mm, and a specific reference range for the vertical distance B is 1.45 mm to 1.9 mm.

[0048] The present invention provides another specific reference range for the vertical distance A is 1.23 mm to 1.4 mm, and another specific reference range for the vertical distance B is 1.68 mm to 1.9 mm.

[0049] The present invention provides yet another specific reference range for the vertical distance A is 1.74 mm to 1.93 mm, and yet another specific reference range for the vertical distance B is 2.32 mm to 2.54 mm.

[0050] When the laminated glass is formed into the following state by jointly adjusting the overlap difference E and the radius R2 of the second arc end face 25, the extrusion force between the laminated glass and the sealant can be better improved. As Figure 3 shown, the tangent line F intersects with the extension line K (i.e., the extension direction S of the laminated glass) of the second glass sheet 2 to form an included angle C, and the angle of the included angle C is ∠C, then there is a relationship: ∠C = 2 * arctan(R2 / (R2 - (B - A))). Since the vertical distance A is related to the vertical distance B and the overlap difference E, the joint adjustment of the overlap difference E and the radius R2 can change the included angle C. That is to say, the present invention extracts and summarizes the included angle C according to the correlation between the extrusion force and the overlap difference E and the radius R2, and then by controlling the angle of the included angle C, the improvement of the extrusion force can be realized, so that the extrusion force meets the requirements.

[0051] The present invention provides an angle range of the included angle C is 110° to 140°. By selecting a certain value from this range as the angle value of the included angle C, compared with the values outside the range, a better improvement effect of the adjusted extrusion force can be obtained.

[0052] The present invention provides a specific reference range for the angle of the included angle C is 111.0° to 117.2°.

[0053] Another specific reference range for the angle of the included angle C provided by the present invention is 122.4° to 126.9°.

[0054] Yet another specific reference range for the angle of the included angle C provided by the present invention is 134.4° to 137.4°.

[0055] The following table shows the comparison of the structural parameters and installation forces between the laminated glass of six preferred embodiments of the present invention, the laminated glass of two comparative examples, and the laminated glass of the non-overlap difference comparative example, when the radius R2 of the second arc end face 25 is 1 mm and the thicknesses of the two glass sheets correspond to be the same.

[0056]

[0057]

[0058] According to the content of the above table, compared with the laminated glass of the non-overlap difference comparative example, the installation force of the laminated glass of the six preferred embodiments of the present invention is significantly reduced. Therefore, it also shows that when the angle of the included angle C is in the range of 110° to 140°, especially in the ranges of 111.0° to 117.2°, 122.4° to 126.9°, or 134.4° to 137.4°, the improvement effect on the extrusion force is better; while compared with the laminated glass of the non-overlap difference comparative example, the reduction in the installation force of the laminated glass of the two comparative examples is smaller. Therefore, it also shows that when the angle of the included angle C is less than 110° or greater than 140°, the improvement effect on the extrusion force is smaller.

[0059] In order to achieve a lighter weight of the laminated glass and reduce the manufacturing cost, in the embodiments of the present invention, the thickness t2 of the second glass sheet 2 is less than the thickness t1 of the first glass sheet 1. Since the present invention adjusts the overlap difference E and the radius R of the arc end face to form a better stress state between the laminated glass and the sealant, thereby improving the stability and strength of the laminated glass. Therefore, after reducing the thickness t2 of the second glass sheet 2, the stability and strength of the laminated glass can still meet the requirements.

[0060] In one or more embodiments, the thickness t1 of the first glass sheet 1 may be from 1.6 mm to 5.0 mm; or in the range from 1.4 mm to about 3.85 mm, or in the range from about 1.4 mm to about 3.5 mm, or in the range from about 1.4 mm to about 3.0 mm, or in the range from about 1.4 mm to about 2.8 mm, or in the range from about 1.4 mm to about 2.5 mm, or in the range from about 1.4 mm to about 2.0 mm, or in the range from about 1.5 mm to about 3.85 mm, or in the range from about 1.5 mm to about 3.5 mm, or in the range from about 1.5 mm to about 3.0 mm, or in the range from about 1.5 mm to about 2.8 mm, or in the range from about 1.5 mm to about 2.5 mm, or in the range from about 1.5 mm to about 2.0 mm, or in the range from about 1.6 mm to about 3.85 mm, or in the range from about 1.6 mm to about 3.5 mm, or in the range from about 1.6 mm to about 3.0 mm, or in the range from about 1.6 mm to about 2.8 mm, or in the range from about 1.6 mm to about 2.5 mm, or in the range from about 1.6 mm to about 2.0 mm, or in the range from about 1.8 mm to about 3.5 mm, or in the range from about 2.0 mm to about 3.0 mm.

[0061] In one or more embodiments, the thickness t2 of the second glass sheet 2 may be from 0.5 mm to 1.4 mm. Or 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, or in the range of about 0.3 mm to about 0.7 mm, or in the range of about 0.4 mm to about 0.7 mm, or in the range of about 0.2 mm to about 0.6 mm, or in the range of about 0.3 mm to about 0.6 mm, or in the range of about 0.4 mm to about 0.6 mm, or in the range of about 0.2 mm to about 0.5 mm, or in the range of about 0.3 mm to about 0.5 mm, or in the range of about 0.2 mm to about 0.4 mm. The extension direction S of the laminated glass described in the present invention refers to the plane extension direction of the laminated glass opposite to the seal. The number of seals matched with the laminated glass can be one or more. Therefore, the number of the end portions 11 and 21 of the first glass sheet 1 and the second glass sheet 2 corresponding to and matched with the seal can be one or more respectively. For example, for a window glass made of laminated glass, the front end and the rear end of the window glass are respectively in sealed sliding fit with a sealing strip. Then, the front end of the first glass sheet 1 extends forward by a distance relative to the second glass sheet 2, and the rear end of the first glass sheet 1 extends backward by a distance relative to the second glass sheet 2, so that an overlap difference is formed at both the front and rear ends of the first glass sheet 1 and the front and rear ends of the second glass sheet 2.

[0062] In order to ensure the stability of the laminated glass in the use state, in the embodiments of the present invention, the first glass sheet 1 with a larger thickness is arranged towards the side with a larger external load of the laminated glass. For example, for a side window glass made of laminated glass, its first glass sheet 1 faces the outside of the vehicle, while the second glass sheet 2 faces the inside of the vehicle, so that the first glass sheet 1 with a larger thickness and higher strength can be used to bear the larger external load outside the vehicle, and the environment inside the vehicle is relatively stable, thereby reducing the impact of the external load on the second glass sheet 2.

[0063] The opposite sides of the first glass sheet 1 and the second glass sheet 2 are respectively the inner side 13 of the first glass sheet 1 and the inner side 23 of the second glass sheet 2, and the opposite sides are respectively the outer side 12 of the first glass sheet 1 and the outer side 22 of the second glass sheet 2. The inner side 13 of the first glass sheet 1 and the inner side 23 of the second glass sheet 2 are bonded together through an adhesive layer 3. The material of the adhesive layer 3 includes but is not limited to polyvinyl butyral (PVB, Polyvinyl butyral), and polycarbonate (PC), soundproof PVB, light-shielding tape PVB, heat control PVB, ethylene vinyl acetate (EVA), thermoplastic polyurethane (TPU), polyacetal resin (POM), polybutylene terephthalate (PBT), polyethylene vinyl acetate (PET), polyethylene naphthalate (PEN), polyvinyl chloride (PVC), polyvinyl fluoride (PVF), polyacrylate (PA), polymethyl methacrylate (PMMA), and polyurethane foam (PUR) can also be used. The thickness of the adhesive layer 3 is 0.38 mm to 0.76 mm, preferably 0.76 mm.

[0064] The position and shape of the end 31 of the adhesive layer 3 opposite to the sealant can be not specifically limited, but in order to ensure that the adhesive layer 3 firmly bonds the first glass sheet 1 and the second glass sheet 2, the two side surfaces of the adhesive layer 3 should preferably cover the inner side 13 of the first glass sheet 1 and the inner side 23 of the second glass sheet 2 respectively. In addition, in the embodiments of the present invention, in order to form a better stress state between the laminated glass and the sealant, the end 31 of the adhesive layer 3 has an adhesive end face 32, and the adhesive end face 32 connects the end 11 of the first glass sheet 1 and the end 21 of the second glass sheet 2. Specifically, one end of the adhesive end face 32 extends to the first arc end face 14, and the other end of the adhesive end face 32 extends to the connection of the end 21 of the second glass 2 and its inner side 23.

[0065] As Figure 2 shown, a tangent line F is formed between the first arc end face 14 and the second arc end face 25. In one or more embodiments, the tangent line F forms a limited boundary; the edge 32 of the end 31 of the adhesive layer 3 is arranged not to exceed the limited boundary. This arrangement can prevent the sealant from coming into contact with the adhesive layer 3, so as to avoid defects such as wear, increased resistance, and noise generation caused by their contact.

[0066] In one or more embodiments, the shape of the edge 32 of the adhesive layer 3 can be an oblique line, or can be a shape concave towards the center position of the adhesive layer 3. It is easy to understand that as long as the edge 32 of the adhesive layer 3 can be arranged not to exceed the above-mentioned limited boundary, it should not exceed the protection scope required by the present invention.

[0067] Specifically, the shape of the edge 32 of the adhesive layer 3 is set as an oblique line, which can facilitate the requirements of industrial production automation grinding. At the same time, compared with other embodiments of the present application, it also has a good appearance effect.

[0068] The materials for the first glass sheet 1 and the second glass sheet 2 can be various. According to one or more embodiments, the materials for the first glass sheet 1 and the second glass sheet 2 can be the same material or different materials. In an exemplary embodiment, one or both of the first glass sheet 1 and the second glass sheet 2 can be glass (such as soda-lime glass, alkaline aluminosilicate glass, alkali-containing borosilicate glass, and / or alkaline aluminum borosilicate glass) or glass ceramic. Examples of suitable glass ceramics include Li2O-Al2O3-SiO2 system (i.e., LAS system) glass ceramics; MgO-Al2O3-SiO2 system (i.e., MAS system) glass ceramics; and glass ceramics containing crystal phases, where the crystal phases are crystal phases of any one or more of the following substances: mullite, spinel, alpha-quartz, beta-quartz solid solution, petalite, lithium disilicate, spodumene, nepheline, and alumina. Additionally, one or both of the first glass sheet 1 and the second glass sheet 2 can be chemically strengthened, thermally strengthened, mechanically strengthened, or a combination thereof. In one or more embodiments, the first glass sheet 1 is unstrengthened (which means not strengthened by chemical strengthening, thermal strengthening, or mechanical strengthening processes, but can include an annealed substrate), and the second glass sheet 2 is strengthened. In one or more specific embodiments, the first glass sheet 1 is thermally strengthened, and the second glass sheet 2 is chemically strengthened. Specifically, the combination of various strengthening means can meet the strength requirements of laminated glass under various vehicle loading conditions, such as frameless door glass assemblies, etc.

[0069] In one embodiment, the surface CS of the chemically strengthened glass or glass ceramic substrate can be 300 MPa or greater, such as 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 CS in the strengthened glass or glass ceramic substrate is the maximum CS.

[0070] The DOL of the chemically strengthened glass or glass-ceramic substrate can be about 15 μm or greater, 20 μm or greater (e.g., 25 μm, 30 μm, 35 μm, 40 μm, 45 μm, 50 μm or greater). In one or more embodiments, the maximum CT value that the strengthened glass or glass-ceramic substrate can exhibit is 10 MPa or greater, 20 MPa or greater, 30 MPa or greater, 40 MPa or greater (e.g., 42 MPa, 45 MPa or 50 MPa or greater), but less than 100 MPa (e.g., 95, 90, 85, 80, 75, 70, 65, 60, 55 MPa or less).

[0071] For the chemical strengthening treatment of thinner glass, it can enable the glass plate to maintain high-strength performance when it is thin enough, which is beneficial to reducing the overall weight of the laminated glass without damaging the performance, enabling users to use vehicles more economically, and / or increasing the driving range of electric vehicles.

[0072] In one embodiment, the present invention also provides a window glass made of laminated glass. The specific structure, working principle and beneficial effects of the laminated glass in this embodiment are the same as those of the laminated glass in Embodiment 1, and will not be elaborated here.

[0073] In one embodiment, the present invention also provides a vehicle including the above-mentioned laminated glass. The specific structure, working principle and beneficial effects of the laminated glass in this embodiment are the same as those of the laminated glass in Embodiment 1, and will not be elaborated here.

[0074] The above are only several embodiments of the present invention, and those skilled in the art can make various changes or modifications to the embodiments of the present invention without departing from the spirit and scope of the present invention according to the content disclosed in the application documents.

Claims

1. A laminated glass, comprising a first glass sheet and a second glass sheet arranged in a stacked manner; an adhesive layer is provided between the first glass sheet and the second glass sheet, and the laminated glass has a sealed end portion capable of cooperating with a seal, and the sealed end portion includes: A first end face located at the end of the first glass sheet and a second end face located at the end of the second glass sheet; characterized in that, Along the extension direction of the laminated glass, a step difference is formed between the first end face and the second end face. The first end face includes a first arc end face, and the second end face includes a second arc end face, and the radius of the second arc end face satisfies the following condition: t2 / 2 < R2 < 3t2, where R2 is the radius of the second arc end face and t2 is the thickness of the second glass sheet; Wherein, the chord length direction of the second arc end face on the second glass sheet is not parallel to the thickness direction of the second glass sheet.

2. A laminated glass, comprising a first glass sheet and a second glass sheet arranged in a stacked manner; an adhesive layer is provided between the first glass sheet and the second glass sheet, and the laminated glass has a sealed end that can cooperate with a seal, and the sealed end includes: A first end face located at the end of the first glass sheet and a second end face located at the end of the second glass sheet; characterized in that, Along the extension direction of the laminated glass, a step difference is formed between the first end face and the second end face. The first end face includes a first arc end face, and the second end face includes a second arc end face, and the radius of the first arc end face and the radius of the second arc end face satisfy the following condition: t / 2 < R < 3t, where R is the radius R1 of the first arc end face or the radius R2 of the second arc end face, and t is the thickness t1 of the first glass sheet or the thickness t2 of the second glass sheet; Wherein, the chord length direction of the second arc end face on the second glass sheet is not parallel to the thickness direction of the second glass sheet.

3. The laminated glass according to claim 1, wherein The radius R1 of the first arc end face is equal to half of the thickness t1 of the first glass sheet.

4. The laminated glass according to claim 1 or 2, characterized in that, The indentation distance of the second end face relative to the first end face is the step difference E, then: 0.5mm < E < 3mm.

5. The laminated glass according to claim 1 or 2, characterized in that, There is a tangent line between the first end face and the second end face; the vertical distance A between the tangent point of the tangent line and the first end face and the nearest point of the second end face from the tangent point is 0.6mm to 2.2mm; the vertical distance B between the intersection point of the tangent line and the extension line of the outer side of the second glass sheet and the tangent point is 0.7mm to 2.9mm.

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

7. The laminated glass according to claim 5, characterized in that, The vertical distance A is 1.23mm to 1.4mm, and the vertical distance B is 1.68mm to 1.9mm.

8. The laminated glass according to claim 5, characterized in that, The vertical distance A is 1.74mm to 1.93mm, and the vertical distance B is 2.32mm to 2.54mm.

9. The laminated glass according to claim 5, characterized in that, The tangent line intersects the extension line to form an included angle ∠C, and the radius of the second arc end face is R2, then: 。 10. The laminated glass according to claim 9, characterized in that, The included angle is 110° to 140°.

11. The laminated glass according to claim 9, characterized in that, The included angle is 111.0° to 117.2°.

12. 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 laminated glass according to claim 1 or 2, wherein the thickness of the second glass sheet is less than the thickness of the first glass sheet, and the first glass sheet is arranged on the side of the laminated glass where the external load is larger.

15. The laminated glass according to claim 1 or 2, wherein 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.

16. The laminated glass according to claim 1 or 2, wherein a tangent line between the first end face and the second end face forms a defined boundary; the edge of the adhesive layer is arranged without exceeding the defined boundary.

17. The laminated glass according to claim 1 or 2, wherein the inner side surface of the second glass sheet opposite to the first glass sheet is transitionally connected to the second end face through a third arc end face, and the radius of the third arc end face is less than the radius of the second arc end face.

18. A vehicle window glass, characterized in that, Made of the laminated glass according to any one of claims 1-17.

19. A vehicle, characterized in that, Including the laminated glass according to any one of claims 1-17.

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