Vehicle window, vehicle window assembly, and vehicle

Abstract

The application provides a vehicle window glass, a vehicle window glass assembly and a vehicle. The vehicle window glass has a notch structure, the notch structure is located at the top of the vehicle window glass, the vehicle window glass is curved towards the direction of the outside of the vehicle, and the curvature change value A of the notch structure satisfies the following condition: A=(R1-R2) / D, and A≤20; wherein R1 is the curvature of the symmetrical center line position of the notch structure, R2 is the curvature of the intersection of the notch structure and the top edge of the vehicle window glass, and D is the depth of the notch structure. The application sets a quantitatively defined notch structure on the vehicle window glass, the notch structure satisfies A=(R1-R2) / D, and A≤20, so as to improve the light refraction and harmony effect of the vehicle window glass, reduce the phenomenon that the user's field of view or the projected image is distorted, shaken or ghosted, and in the early stage, the notch structure design of the vehicle window glass is unified and quantified, which is beneficial to reducing the adjustment difficulty of the light refraction effect of the vehicle window glass after installation in the later stage.

Description

Technical Field

[0001] This application belongs to the field of vehicle technology, specifically relating to vehicle window glass, vehicle window glass assembly, and vehicle. Background Technology

[0002] With the increasing popularity of automotive LiDAR, recesses need to be installed on car windows at the LiDAR locations. However, the designs of these recesses are diverse and lack quantification, making it impossible to assess their refractive optical state. As a result, after installation, there is a risk of inconsistencies in refraction, leading to distortion, shaking, and ghosting in the user's field of vision or projected images. Summary of the Invention

[0003] In view of this, the first aspect of this application provides a vehicle window glass, which is installed in a vehicle and has a notch structure located at the top of the vehicle window glass, and the vehicle window glass is curved toward the outside of the vehicle. The curvature change value A of the notch structure satisfies the following condition: A = (R1 - R2) / D, and A ≤ 20; where R1 is the curvature at the symmetrical center line of the notch structure, R2 is the curvature at the intersection of the notch structure and the top edge of the window glass, and D is the depth of the notch structure.

[0004] The curvature R1 at the symmetrical center line of the notch structure satisfies: 2000mm≤R1≤5000mm.

[0005] Wherein, the curvature R2 at the cut-off position of the notch structure satisfies: 500mm≤R2≤3000mm.

[0006] The difference S between the curvature R1 at the symmetrical center line of the notch structure and the curvature R2 at the cut-off position of the notch structure satisfies: 0≤S≤2000mm.

[0007] The depth D of the notch structure satisfies: 100mm≤D≤450mm.

[0008] The bottom of the notch structure is arc-shaped, and the width of the notch structure from the bottom to the preset height B is W. The width W satisfies: 150mm≤W≤300mm, and the preset height B is equal to the radius of the arc at the bottom of the notch structure.

[0009] The bottom of the notch structure is arc-shaped, and the tangent angle of the notch structure from the bottom to the preset height B is α. The tangent angle α satisfies: α≥20°, and the preset height B is equal to the radius of the arc at the bottom of the notch structure.

[0010] The notch structure has an inner corner, and the radius R0 of the inner corner satisfies: 75mm≤R0≤150mm.

[0011] The second aspect of this application provides a vehicle window glass assembly, the vehicle window glass assembly including an optical sensor and a vehicle window glass as provided in the first aspect of this application, the optical sensor being disposed in the recessed structure.

[0012] A third aspect of this application provides a vehicle comprising a body and a window glass as provided in the first aspect of this application, the window glass being disposed on the body.

[0013] The vehicle window glass, vehicle window glass assembly, and vehicle provided in this application improve the refractive harmony effect of the vehicle window glass by setting a quantitatively defined notch structure in the vehicle window glass. The notch structure satisfies A=(R1-R2) / D and A≤20, thereby reducing the distortion, shaking, and ghosting phenomena in the user's field of vision or projected image. Furthermore, the standardized and quantitative design of the notch structure of the vehicle window glass in the early stage helps to reduce the difficulty of adjusting the refractive effect of the vehicle window glass after later installation. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the embodiments of this application will be described below.

[0015] Figure 1 This is a schematic diagram of the structure of a vehicle window glass provided in one embodiment of this application.

[0016] Figure 2 This is a schematic diagram of the structure of a vehicle window glass provided for another embodiment of this application.

[0017] Figure 3 This is a structural schematic diagram of a vehicle window glass provided for another embodiment of this application.

[0018] Figure 4 This is a schematic diagram of the structure of a vehicle window glass provided in another embodiment of this application.

[0019] Figure 5 A physical schematic diagram of a vehicle window glass provided for related technologies.

[0020] Figure 6 This is a schematic diagram of the vehicle window glass provided in Example 1.

[0021] Figure 7 This is a schematic diagram of the vehicle window glass provided in Example 1 from another angle.

[0022] Figure 8 This is a physical schematic diagram of the vehicle window glass provided in Example 1 at another angle.

[0023] Labeling explanation: Window glass 1, recessed structure 10. Detailed Implementation

[0024] The following are preferred embodiments of this application. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principles of this application, and these improvements and modifications are also considered to be within the scope of protection of this application.

[0025] In view of this, in order to solve the above problems, please refer to the following: Figures 1-4 This embodiment provides a vehicle window glass 1, which is installed in a vehicle. The vehicle window glass 1 has a notch structure 10, which is located at the top of the vehicle window glass 1. The vehicle window glass 1 is curved toward the outside of the vehicle.

[0026] The curvature change value A of the notch structure 10 satisfies the following condition: A = (R1 - R2) / D, and A ≤ 20; where R1 is the curvature at the symmetrical center line position of the notch structure 10, R2 is the curvature at the intersection of the notch structure 10 and the top edge of the window glass 1, and D is the depth of the notch structure 10.

[0027] Optionally, the window glass 1 can be the vehicle's windshield, side window, sunroof, corner window, or rear windshield, etc. Preferably, the window glass 1 is the vehicle's windshield.

[0028] An optical sensor is located in the recessed structure 10. The optical sensor is positioned on the outside of the window glass 1. The optical sensor is capable of emitting optical signals.

[0029] Optionally, the optical sensor includes at least an image sensor, such as a camera, which is capable of acquiring images of the external environment. Optionally, the optical sensor is selected from at least one of a visible light camera, an infrared camera, and a lidar.

[0030] The window glass 1 has an inner surface and an outer surface that are arranged opposite to each other. The outer surface of the window glass 1 is raised, and the inner surface of the window glass 1 is recessed.

[0031] Optionally, the vehicle window glass 1 includes a first glass panel, an intermediate adhesive layer, and a second glass panel stacked sequentially.

[0032] Optionally, the optical sensor is located on the side of the second glass plate opposite to the intermediate adhesive layer.

[0033] Specifically, the first glass panel serves as the outer glass panel of the vehicle window 1, and the second glass panel serves as the inner glass panel of the vehicle window 1. The first glass panel has a first surface and a second surface, the first surface being away from the intermediate adhesive layer and in contact with the external environment of the vehicle, and the second surface being close to the intermediate adhesive layer; the second glass panel has a third surface and a fourth surface, the third surface being close to the intermediate adhesive layer, and the fourth surface being away from the intermediate adhesive layer and close to the internal environment of the vehicle. At least a portion of the intermediate adhesive layer connects the second surface and the third surface.

[0034] The first glass plate has a thickness of 1.6mm to 2.5mm and a visible light transmittance of ≥70%, ≥80%, or ≥90%. The first glass plate is either transparent glass or ultra-transparent glass (ultra-clear glass). The total iron content (as Fe2O3) of the transparent glass (standard clear glass) is less than or equal to 0.1%, even less than or equal to 0.05%, and the visible light transmittance is 80% to 95%. The total iron content (as Fe2O3) of the ultra-transparent glass (ultra-clear glass) is less than or equal to 0.015%, even less than or equal to 0.01%, and even less than or equal to 50 PPM, and the visible light transmittance is 90% to 95%. For example, the first glass plate can be 2.1mm thick transparent glass with a visible light transmittance of 89%, or 1.6mm thick green glass with a visible light transmittance of 83%, or 2.1mm thick green glass with a visible light transmittance of 80%.

[0035] The thickness of the second glass plate is 1.1mm to 2.5mm, and the visible light transmittance of the second glass plate is ≥70%, ≥80%, ≥85%, or ≥90%. The second glass plate is transparent glass, ultra-transparent glass, or light-colored glass; the total iron content (calculated as Fe2O3) of the transparent glass (standard clear glass) is less than or equal to 0.1%, even less than or equal to 0.05%, and the visible light transmittance of the transparent glass is 80% to 95%. The total iron content (calculated as Fe2O3) of the ultra-transparent glass (ultra-clear glass) is less than or equal to 0.015%, even less than or equal to 0.01%, and even less than or equal to 50 PPM, and the visible light transmittance of the ultra-transparent glass is 90% to 95%. For example, the second glass plate can be 2.1mm thick transparent glass with a visible light transmittance of 89%, or 1.6mm thick green glass with a visible light transmittance of 83%, or 2.1mm thick green glass with a visible light transmittance of 80%.

[0036] The intermediate adhesive layer can be a transparent thermoplastic polymer film or a light-colored thermoplastic polymer film, and the thickness of the intermediate adhesive layer is 0.2 mm to 1 mm. For example, the thickness of the intermediate adhesive layer can be, but is not limited to, 0.2 mm, 0.38 mm, 0.76 mm, or 1 mm, etc. The material of the thermoplastic polymer film can be selected from at least one of polyvinyl butyral (PVB), polyurethane (PU), ethylene-vinyl acetate copolymer (EVA), TPU (thermoplastic polyurethane), and ionomer polymer (SGP).

[0037] Optionally, the visible light transmittance of the intermediate adhesive layer is ≥70%, ≥80%, or ≥85%. When the intermediate adhesive layer is a transparent thermoplastic polymer, the visible light transmittance of the transparent thermoplastic polymer is greater than or equal to 85%. For example, the visible light transmittance of the intermediate adhesive layer can be, but is not limited to, 85%, 90%, or 95%.

[0038] Optionally, the intermediate adhesive layer can be a single-layer or multi-layer structure. Examples of multi-layer structures include double-layer, triple-layer, quadruple-layer, and five-layer structures. The intermediate adhesive layer can also have other functions, such as adding infrared absorbers to provide sun protection or heat insulation, adding ultraviolet absorbers to provide ultraviolet protection, or having at least one layer of the multi-layer structure with a higher plasticizer content to provide sound insulation.

[0039] The notch structure 10 is formed by recessing from the edge of the window glass 1 towards the center of the window glass 1. The curvature change value A of the notch structure 10 satisfies the following conditions: A = (R1 - R2) / D, and A ≤ 20.

[0040] The curvature variation value A of the notch structure 10 can be exemplified as 20, 19, 18, 17, 16, 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, or 1, etc.

[0041] Wherein, R1 and R2 are the curvatures of the car window glass 1 in the longitudinal direction.

[0042] In related technologies, the car window glass 1 itself is curved outwards. The sudden change in the curvature of the car window glass 1 will cause a sudden change in the angle of light refraction, which in turn will cause distortion, shaking, and ghosting of the field of vision or projection.

[0043] Therefore, in this embodiment, the curvature change value A of the notch structure 10 is limited to satisfy A=(R1-R2) / D and A≤20. The curvature change range of the notch structure 10 is quantitatively constrained, thereby unifying the design of the notch structure 10 of the car window glass 1 in the early stage, which helps to reduce the difficulty of adjusting the refraction effect of the car window glass 1 after later installation.

[0044] Furthermore, the curvature R1 at the symmetrical center line position of the notch structure 10 satisfies: 2000mm≤R1≤5000mm.

[0045] The curvature R1 of the symmetrical center line of the notch structure 10 can be exemplified as 2000mm, 2200mm, 2400mm, 2600mm, 2800mm, 3000mm, 3200mm, 3400mm, 3600mm, 3800mm, 4000mm, 4200mm, 4400mm, 4600mm, 4800mm, or 5000mm, etc.

[0046] Therefore, this embodiment limits the range and magnitude of the curvature change of the notch structure 10 by limiting the curvature R1 at the position of the symmetrical center line of the notch structure 10, so that the curvature of the core part of the notch structure 10 is more gradual and abrupt curvature changes at the connecting part are avoided.

[0047] The curvature R2 at the cut-off position of the notch structure 10 satisfies: 500mm≤R2≤3000mm.

[0048] The curvature R2 at the cutoff position of the notch structure 10 can be exemplified as 500mm, 600mm, 700mm, 800mm, 900mm, 1000mm, 1200mm, 1400mm, 1600mm, 1800mm, 2000mm, 2200mm, 2400mm, 2600mm, 2800mm, or 3000mm, etc.

[0049] Therefore, this embodiment limits the range and magnitude of the curvature change of the notch structure 10 by limiting the curvature R2 at the cut-off position of the notch structure 10, so that the curvature of the core part of the notch structure 10 is more gradual and abrupt curvature changes at the connection part are avoided.

[0050] The difference S between the curvature R1 at the symmetrical center line position of the notch structure 10 and the curvature R2 at the cut-off position of the notch structure 10 satisfies: 0≤S≤2000mm.

[0051] The curvature R1 at the symmetrical center line of the notch structure 10 is greater than the curvature R2 at the cutoff position of the notch structure 10.

[0052] The difference S between the curvature R1 at the symmetrical center line position of the notch structure 10 and the curvature R2 at the cut-off position of the notch structure 10 can be 0, 200mm, 400mm, 600mm, 800mm, 1000mm, 1200mm, 1400mm, 1600mm, 1800mm, or 2000mm, etc.

[0053] Therefore, this embodiment limits the range and magnitude of curvature change of the notch structure 10 by limiting the difference S between the curvature R1 at the symmetrical center line position of the notch structure 10 and the curvature R2 at the cut-off position of the notch structure 10, so that the curvature of the core part of the notch structure 10 is smoother and abrupt curvature changes at the connecting part are avoided.

[0054] In summary, this embodiment can limit the range and amplitude of curvature change of the notch structure 10 by limiting the curvature R1 at the symmetrical center line position of the notch structure 10, the curvature R2 at the cut-off position of the notch structure 10, and the difference S between the curvature R1 at the symmetrical center line position of the notch structure 10 and the curvature R2 at the cut-off position of the notch structure 10, thereby making the curvature of the core part of the notch structure 10 smoother and avoiding abrupt curvature changes at the connecting part.

[0055] Therefore, this embodiment limits the range and magnitude of the curvature change of the notch structure 10 by limiting the curvature R1 at the symmetrical center line position of the notch structure 10, the curvature R2 at the cut-off position of the notch structure 10, and the difference S between the curvature R1 at the symmetrical center line position of the notch structure 10 and the curvature R2 at the cut-off position of the notch structure 10, so that the curvature of the core part of the notch structure 10 is smoother and the curvature of the connecting part is avoided abruptly.

[0056] The depth D of the notch structure 10 satisfies: 100mm≤D≤450mm.

[0057] The depth D of the notch structure 10 can be exemplified as 100mm, 120mm, 140mm, 160mm, 180mm, 200mm, 220mm, 240mm, 260mm, 280mm, 300mm, 320mm, 340mm, 360mm, 380mm, 400mm, 425mm, or 450mm, etc.

[0058] The depth of the notch structure 10 determines the difficulty of hot bending the window glass 1. If the depth D of the notch structure 10 is greater than 450mm, the depth of the notch structure 10 is too large, which makes the notch structure 10 prone to wrinkles and the mold cannot form it.

[0059] The depth of the recess structure 10 also controls the height difference between the recess structure 10 and other areas of the window glass 1. If the depth D of the recess structure 10 is greater than 450mm or less than 100mm, the connection between the recess structure 10 and other areas of the window glass 1 will be poor, the molding and bonding will be unstable, and the reliability of the window glass 1 will be reduced.

[0060] Therefore, by limiting the depth D of the recess structure 10 to 100mm~450mm, this embodiment not only improves the connection between the recess structure 10 and other areas of the window glass 1, and improves the reliability of the window glass 1, but also reduces the difficulty of hot bending the window glass 1 and reduces the risk of wrinkles easily generated in the recess structure 10.

[0061] In summary, the vehicle window glass 1 provided in this embodiment improves the refractive harmony effect of the vehicle window glass 1 by setting a quantitatively defined notch structure 10, wherein the notch structure 10 satisfies A=(R1-R2) / D and A≤20, thereby reducing the distortion, shaking, and ghosting phenomena of the user's field of vision or projected image. Furthermore, the unified quantitative design of the notch structure 10 of the vehicle window glass 1 in the early stage helps to reduce the difficulty of adjusting the refractive effect of the vehicle window glass 1 after later installation.

[0062] Furthermore, the bottom of the notch structure 10 is arc-shaped, and the width of the notch structure 10 from the bottom to the preset height B is W. The width W satisfies: 150mm≤W≤300mm, and the preset height B is equal to the arc radius of the bottom of the notch structure 10.

[0063] The width W of the notch structure 10 from the bottom to the preset height B can be exemplified as 150mm, 160mm, 170mm, 180mm, 190mm, 200mm, 210mm, 220mm, 230mm, 240mm, 250mm, 260mm, 270mm, 280mm, 290mm, or 300mm, etc.

[0064] The bottom of the notch structure 10 is arc-shaped, and the tangent angle of the notch structure 10 from the bottom to the preset height B is α. The tangent angle α satisfies: α≥20°, and the preset height B is equal to the radius of the arc at the bottom of the notch structure 10.

[0065] The tangent angle α of the notch structure 10 from the bottom to the preset height B can be exemplified as 20°, 22°, 24°, 26°, 28°, 30°, 32°, 34°, 36°, 38°, or 40°, etc.

[0066] Optionally, the preset height B satisfies: 65mm≤B≤85mm.

[0067] The preset height B can be 65mm, 70mm, 75mm, 80mm, or 85mm, etc.

[0068] For example, the preset height B is 75mm, and the radius of the arc at the bottom of the notch structure 10 is 75mm.

[0069] Furthermore, the radius of the arc at the bottom of the recessed structure 10 corresponds to the radius of the grinding wheel in the pretreatment process. When the radius of the arc at the bottom of the recessed structure 10 is 75mm, the radius of the grinding wheel in the pretreatment process is 75mm and the diameter of the grinding wheel is 150mm.

[0070] On the one hand, in this embodiment, the bottom shape of the notch structure 10 is set to be arc-shaped, which can not only avoid the sudden change of local curvature at the bottom of the notch structure 10 and prevent local refractive distortion at the bottom of the notch structure 10, but also prevent cracking at the bottom of the notch structure 10 due to stress concentration, thereby improving the mechanical strength of the car window glass 1.

[0071] On the other hand, this embodiment reduces the manufacturing difficulty by limiting the width W of the notch structure 10 from the bottom to the preset height B and / or the tangent angle α of the notch structure 10 from the bottom to the preset height B. This facilitates the processing of the inclination angle of the side wall of the notch structure 10 during the manufacturing process, ensuring that the cutting, bending, grinding and polishing processes are smooth, stress-free, and do not chip, thereby improving the reliability of the notch structure 10.

[0072] In another embodiment, the notch structure 10 has an inner corner, the radius R0 of which satisfies: 75mm≤R0≤150mm.

[0073] The radius R0 of the inner corner can be exemplified by 75mm, 80mm, 85mm, 90mm, 95mm, 100mm, 105mm, 110mm, 115mm, 120mm, 125mm, 130mm, 135mm, 140mm, 145mm, or 150mm, etc.

[0074] On the one hand, from an optical perspective, the notch structure 10 has an inner corner, which can avoid abrupt changes in local curvature at the corner and prevent local refractive distortion from occurring at that position.

[0075] On the other hand, from a structural perspective, the recessed structure 10 has an inner corner, which can increase the corner radius to disperse stress, avoid cracking due to stress concentration at the corner, and ensure the mechanical strength of the window glass 1.

[0076] If the radius R0 of the inner corner is less than 75mm, the radius at the corner will be too small, the curvature at the corner will increase sharply, there will be a sudden change in curvature, resulting in obvious local refractive distortion, and problems such as visual distortion and optical shift will occur. It will also lead to high stress concentration, and the inner corner of the notch structure 10 will become a weak point of stress, which will easily cause the window glass 1 to crack and chip.

[0077] If the radius R0 of the inner corner is greater than 150mm, it will result in an excessively large radius at the corner, and the overall outline of the notch structure 10 will be too smooth, affecting the curvature change value A of the notch structure 10. This will cause light path scattering and light and shadow shift, and will also cause the excessively enlarged corner arc to change the overall force distribution of the car window glass 1, resulting in uneven local force and reduced assembly fit.

[0078] Therefore, by limiting the radius R0 of the inner corner to 75mm~150mm, this embodiment can not only avoid abrupt changes in local curvature at the corner and prevent local refractive distortion at that location, but also disperse stress, prevent cracking due to stress concentration at the corner, and ensure the mechanical strength of the car window glass 1.

[0079] Optionally, such as Figure 4 As shown, the intersection of the notch structure 10 and the top edge of the window glass 1 is a rounded corner, and the corner radius of the intersection of the notch structure 10 and the top edge of the window glass 1 is ≥5mm.

[0080] The corner radius at the intersection of the notch structure 10 and the top edge of the window glass 1 can be exemplified as 5mm, 5.5mm, 6mm, 6.5mm, 7mm, 7.5mm, 8mm, 8.5mm, 9mm, 9.5mm, or 10mm, etc.

[0081] By limiting the corner radius at the intersection of the notch structure 10 and the top edge of the window glass 1, it is beneficial to disperse stress, avoid cracking due to stress concentration at the corner, and improve the mechanical strength of the window glass 1.

[0082] In summary, the vehicle window glass 1 provided in this application, by setting a quantitatively defined notch structure 10 in the vehicle window glass 1, limits the curvature change value A of the notch structure 10, and preferably further limits the curvature R1 at the symmetrical center line position of the notch structure 10, the curvature R2 at the cut-off position of the notch structure 10, the difference S, the depth D, the width W, the tangent tilt angle α, and the radius R0 of the inner corner, so as to reduce light refraction and aberration caused by the curved surface of the vehicle window glass 1 and reduce optical distortion; it can also reduce Fresnel reflection of optical signals at the glass-air interface, improve the signal-to-noise ratio, and reduce the reflection loss of optical signals; it can also avoid the phenomenon of total internal reflection of optical signals caused by excessive angle, thereby improving the optical performance of the vehicle window glass 1, improving the refractive harmony effect of the vehicle window glass 1, and reducing the distortion, shaking, and ghosting phenomena of the user's field of vision or projected image.

[0083] This application also provides a vehicle window glass assembly, which includes an optical sensor and the vehicle window glass as described above, wherein the optical sensor is disposed in the recessed structure.

[0084] This application also provides a vehicle, the vehicle including a body and a window glass as described above, the window glass being disposed on the body.

[0085] The vehicle window glass can be the windshield, side windows, sunroof, corner windows, or rear window, etc. Preferably, the vehicle window glass is the windshield.

[0086] Therefore, the vehicle window glass assembly and vehicle provided in this application adopt the vehicle window glass provided in this application above. By setting a quantitatively defined notch structure in the vehicle window glass, the notch structure satisfies A=(R1-R2) / D and A≤20, so as to improve the refractive harmony effect of the vehicle window glass, reduce the distortion, shaking and ghosting of the user's field of vision or projected image, and the uniform quantitative design of the notch structure of the vehicle window glass in the early stage helps to reduce the difficulty of adjusting the refractive effect of the vehicle window glass after later installation.

[0087] To make the purpose and advantages of this application clearer, the effects of the vehicle window glass of this application will be further explained in detail below with reference to specific embodiments.

[0088] In Example 1, the relevant parameters of the notch structure of the vehicle window glass are as follows: The curvature R1 at the symmetrical centerline of the notch structure is 2385.5 mm; The curvature R2 at the cut-off position of the notch structure is 1270.4 mm; The depth D of the notch structure is 102.5 mm; The curvature change value of the notch structure is A = (R1 - R2) / D = 10.8.

[0089] The evaluation criteria for the refractive effect of a physical object are as follows: Take photos of the reflection of the car window glass within a 30mm x 30mm grid.

[0090] For car windows with a lateral bending radius of less than 1 meter, additional photos must be taken at approximately 40° angles to the left and right. For windshields that extend deep into the roof, separate photos can be taken. In this case, it must be ensured that the area being photographed is covered by a grid.

[0091] Horizontal and vertical lines in the reflected image of the vehicle window must have a harmonious appearance, and lines in opposite directions are not allowed. Mesh-like indentations detectable by high-frequency length analysis are not permitted on the edges of the vehicle window.

[0092] If the lines in the reflected image of the car window are divergent, it indicates that the local curvature is large and the car window is high; if the lines in the reflected image of the car window are convergent, it indicates that the local curvature is small and the car window is flat or concave.

[0093] The actual refractive effect of car window glass in related technologies, such as Figure 5 As shown, the horizontal and vertical lines in the reflected image of the car window glass in the related technology do not have a harmonious appearance and have lines in opposite directions. Therefore, after the glass is installed later, there is a problem of disharmony in refraction, which causes distortion, shaking and ghosting in the user's field of vision or projected image.

[0094] The actual refractive effect of the car window glass in Example 1 is as follows: Figures 6-8 As shown, observe Figures 6-8 It can be seen that when a reflection photograph is taken under a 30mm x 30mm grid on the car window glass, the horizontal and vertical lines in the reflected image of the car window glass have a harmonious appearance, there are no lines in opposite directions, and there are no mesh-like indentations on the edge of the car window glass that are detected by high frequency length.

[0095] Therefore, this embodiment limits the curvature change value A of the notch structure, the curvature R1 of the symmetrical center line of the notch structure, the curvature R2 of the cut-off position of the notch structure, the difference S, and the depth D, so that the notch structure position of the car window glass has harmonious refraction, thereby improving the optical performance of the car window glass, improving the refraction harmony effect of the car window glass, and reducing the distortion, shaking, and ghosting phenomena in the user's field of vision or projected image.

[0096] Unless otherwise stated or in case of conflict, the terms or phrases used in this application shall have the following meanings: In this application, terms such as "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature.

[0097] In this application, "one or more" refers to any one, any two, or any two or more of the listed items. "Several" refers to any two or more.

[0098] In this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0099] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part. They can refer to a mechanical connection or an electrical connection. They can refer to a direct connection or an indirect connection through an intermediate medium, or the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0100] In this application, the terms "embodiment" and "implementation" mean that a specific feature, structure, or characteristic described in connection with an embodiment can be included in at least one embodiment of this application. The appearance of these phrases in various locations throughout the specification does not necessarily refer to the same embodiment, nor are they independent or alternative embodiments mutually exclusive with other embodiments. Those skilled in the art will understand, explicitly and implicitly, that the embodiments described in this application can be combined with other embodiments. Furthermore, it should be understood that the features, structures, or characteristics described in the various embodiments of this application can be arbitrarily combined to form yet another embodiment that does not depart from the spirit and scope of the technical solution of this application, provided there is no contradiction between them.

[0101] The above description represents some embodiments of this application. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this application, and these improvements and modifications are also considered to be within the scope of protection of this application.

Claims

1. A type of vehicle window glass, characterized in that, Installed on a vehicle, characterized in that the window glass has a recessed structure, the recessed structure is located at the top of the window glass, and the window glass is curved toward the outside of the vehicle; The curvature change value A of the notch structure satisfies the following condition: A = (R1 - R2) / D, and A ≤ 20; where R1 is the curvature at the symmetrical center line of the notch structure, R2 is the curvature at the intersection of the notch structure and the top edge of the window glass, and D is the depth of the notch structure.

2. The vehicle window glass as described in claim 1, characterized in that, The curvature R1 at the symmetrical center line of the notch structure satisfies: 2000mm≤R1≤5000mm.

3. The vehicle window glass as described in claim 1, characterized in that, The curvature R2 at the cut-off position of the notch structure satisfies: 500mm≤R2≤3000mm.

4. The vehicle window glass as described in claim 1, characterized in that, The difference S between the curvature R1 at the symmetrical center line of the notch structure and the curvature R2 at the cut-off position of the notch structure satisfies: 0 ≤ S ≤ 2000 mm.

5. The vehicle window glass as described in claim 1, characterized in that, The depth D of the notch structure satisfies: 100mm≤D≤450mm.

6. The vehicle window glass as described in claim 5, characterized in that, The bottom of the notch structure is arc-shaped, and the width of the notch structure from the bottom to the preset height B is W. The width W satisfies: 150mm≤W≤300mm, and the preset height B is equal to the radius of the arc at the bottom of the notch structure.

7. The vehicle window glass as described in claim 5, characterized in that, The bottom of the notch structure is arc-shaped, and the tangent angle of the notch structure from the bottom to the preset height B is α. The tangent angle α satisfies: α≥20°, and the preset height B is equal to the radius of the arc at the bottom of the notch structure.

8. The vehicle window glass as described in claim 1, characterized in that, The notch structure has an inner corner, and the radius R0 of the inner corner satisfies: 75mm≤R0≤150mm.

9. A vehicle window glass assembly, characterized in that, The window glass assembly includes an optical sensor and a window glass as described in any one of claims 1-8, wherein the optical sensor is disposed in the recessed structure.

10. A vehicle, characterized in that, The vehicle includes a body and a window glass as described in any one of claims 1-8, wherein the window glass is disposed on the body.

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