Vehicle glass mask

Abstract

The invention provides a vehicle glass mask, and relates to the technical field of masks, the vehicle glass mask comprises a cover plate and a gradual change hollow structure, the cover plate comprises a transition plate body used for covering a film area of vehicle glass and a covering plate body used for covering a film-free area of the vehicle glass; the gradually-changed hollow structure is arranged on the transition plate body, the hollow area of the gradually-changed hollow structure is gradually reduced in the direction from the transition plate body to the covering plate body, and the gradually-changed hollow structure is used for forming gradually-transited film layer distribution on the film area of the vehicle glass. The gradual change hollow structure is arranged on the cover plate, the gradual change hollow structure can enable the film layer on the vehicle glass to be gradually transitionally distributed, the temperature field on the surface of the glass can be more uniform through the gradually transitioned film layer, the problem of temperature sudden change caused by sudden distribution of the film layer is avoided, and therefore the influence of thermal stress on the shape of the glass is reduced, and the service life of the vehicle glass is prolonged. Furthermore, the optical performance of the glass is improved, and the requirements of customers can be better met.

Description

Technical Field

[0001] This invention relates to the field of mask technology, and in particular to a vehicle glass mask. Background Technology

[0002] In the automotive manufacturing industry, automotive glass, as a crucial component of vehicles, has evolved from simply providing shelter from the elements to becoming increasingly intelligent and multifunctional. However, with the increasing proportion of automotive glass in the overall vehicle structure (exceeding 40% of the sun-receiving area), effectively controlling sunlight entry into the vehicle has become a significant technological challenge, especially in high-temperature summer conditions. To reduce interior temperature and improve comfort, a heat-reflective film is typically applied to the surface of automotive glass. This film is usually made of metal or semiconductor materials and applied using vacuum magnetron sputtering. However, a major limitation of this coating process is the inability to selectively coat specific areas; therefore, a uniform coating must be applied to the entire glass surface. Simultaneously, with the deepening development of automotive intelligence and connectivity, more and more information interaction components are being integrated into automotive glass, such as LiDAR, intelligent driver assistance cameras, and TBX antennas. These components are typically located at the rear of the glass, and the presence of the heat-reflective film significantly affects the transmittance of light and electromagnetic waves, thus interfering with the normal operation of these information interaction components. Therefore, creating film-free windows for these components on the glass has become a necessary solution. Furthermore, because the metal film is prone to oxidation, especially at the glass edges, this not only affects the film's thermal insulation performance but can also lead to problems such as film peeling. Therefore, to avoid oxidation of the metal film, it is usually necessary to create a film-free zone at the glass edges.

[0003] Currently, the industry mainly uses the following methods to achieve film-free windows on glass: (1) Stainless steel metal mask: using physical shielding to protect specific areas from coating during the coating process; (2) Coating mask: selective coating is achieved by coating with removable mask material; (3) Laser removal after coating: first, the entire surface is coated, and then the film layer in specific areas is removed by laser means. However, the above methods have a common technical problem in practical applications: during the forming process, the difference in heat absorption between the coated area and the uncoated area will lead to a significant temperature difference, which will cause obvious distortion and deformation of the glass boundary area. Especially for skylight glass that requires large-area film removal, this distortion phenomenon is more serious, which directly affects the optical performance of the glass (such as refractive error) and makes it difficult to meet customer needs. Therefore, how to reduce the distortion and deformation of the glass boundary area caused by the difference in heat absorption has become an urgent technical problem to be solved. Summary of the Invention

[0004] In order to overcome the above-mentioned defects of the prior art, the technical problem to be solved by the embodiments of the present invention is to provide a vehicle glass mask for reducing the distortion and deformation of the glass boundary area caused by heat absorption differences.

[0005] The above-mentioned objective of this invention can be achieved by the following technical solution: This invention provides a vehicle glass mask, comprising:

[0006] A cover plate, the cover plate including a transition plate for covering a film-covered area of ​​a vehicle glass and a cover plate for covering a non-film-covered area of ​​the vehicle glass;

[0007] A gradient cutout structure is provided on the transition plate. Along the direction from the transition plate to the cover plate, the cutout area of ​​the gradient cutout structure gradually decreases. The gradient cutout structure is used to form a gradually transitioning film layer distribution on the film area of ​​the vehicle glass.

[0008] In a preferred embodiment of the present invention, the gradient hollow structure includes a plurality of gradient holes disposed on the transition plate, the plurality of gradient holes being arranged in an array to form a gradient hole array, and the gradient holes being provided in at least two rows along the direction from the transition plate to the cover plate, wherein the diameter of each gradient hole in the same row is the same, and the diameter of the gradient holes in different rows gradually decreases.

[0009] In a preferred embodiment of the present invention, the gradient holes are arranged in N rows, where N≥2, and the area of ​​the gradient holes in the Nth row satisfies the following formula: S N =kS n-1 In the formula, S N S is the area of ​​the gradient hole located in the Nth row. N-1 Let be the area of ​​the gradient hole located in the (N-1)th row, and k be the variation coefficient, where 0.25 ≤ k ≤ 0.8.

[0010] In a preferred embodiment of the present invention, the gap between the Nth row and the (N-1th row) of the gradient holes satisfies the following formula: X n-1 =A√(S) N-1 / 3.14); where 0.5≤A≤1.5.

[0011] In a preferred embodiment of the present invention, the area of ​​the gradient holes located in the first row is 3 mm. 2 Up to 80mm 2 Preferably, the area of ​​the gradient holes in the first row is 12 mm². 2 Up to 30mm 2 .

[0012] In a preferred embodiment of the present invention, the gap between adjacent gradient holes in the first row is 2 mm to 6 mm.

[0013] In a preferred embodiment of the present invention, the distance between the gradient hole array and the edge of the cover plate is 10 mm to 40 mm. Preferably, the distance between the gradient hole array and the edge of the cover plate is 20 mm to 30 mm.

[0014] In a preferred embodiment of the present invention, the gradient hole is one of polygonal, circular, or elliptical shapes.

[0015] In a preferred embodiment of the present invention, the gradient hollow structure includes a concave-convex structure disposed on the edge of the transition plate, wherein the dimension of the concave-convex structure in the direction from the transition plate to the cover plate is 2mm to 40mm. Preferably, the height of the concave-convex structure in the direction from the transition plate to the cover plate is 10mm to 30mm.

[0016] In a preferred embodiment of the present invention, the concave-convex structure includes a plurality of corrugated portions arranged at intervals along the edge of the transition plate. The width of the corrugated portions gradually increases along the direction from the transition plate to the cover plate, and the minimum spacing between adjacent corrugated portions is 2 mm to 10 mm.

[0017] In a preferred embodiment of the present invention, the concave-convex structure includes a plurality of serrated portions arranged at intervals along the edge of the transition plate. The width of the serrated portions gradually increases along the direction from the transition plate to the cover plate, and the minimum spacing between adjacent serrated portions is 2 mm to 10 mm.

[0018] In a preferred embodiment of the present invention, the hollow edge of the gradient hollow structure is provided with a chamfer structure connecting the two end faces of the cover plate; the chamfer structure is a rounded corner connecting the two end faces of the cover plate, and the radius of the rounded corner is 2mm to 8mm; or, the chamfer structure is a beveled angle connecting the two end faces of the cover plate, and the angle of the beveled angle is 30° to 60°.

[0019] In a preferred embodiment of the present invention, the hollow edge of the gradient hollow structure is provided with a stepped structure connecting the two end faces of the cover plate, and the step surface of the stepped structure has a downward height of 0.3mm to 1mm along the thickness direction of the cover plate.

[0020] In a preferred embodiment of the present invention, the cover plate is made of stainless steel, aluminum alloy or titanium alloy.

[0021] In a preferred embodiment of the present invention, the thickness of the cover plate is 1 mm to 3 mm; and / or, the area of ​​the cover plate is 0.1 m². 2 Up to 1m 2 .

[0022] In a preferred embodiment of the invention, at least a portion of the edge region of the cover plate forms the transition plate body, and the remaining region of the cover plate forms the cover plate body.

[0023] In a preferred embodiment of the present invention, the vehicle glass mask further includes an anti-slip tape disposed on the back of the cover plate, the anti-slip tape being formed from rubber or silicone material.

[0024] In a preferred embodiment of the present invention, the vehicle glass mask further includes a modified film layer, which is adhered to the front side of the cover plate. The modified film layer is formed by an adhesion promoter, which includes one or more combinations of organosilane adhesion promoters, organotitanic acid adhesion promoters, zircon adhesion promoters, zirconium aluminate adhesion promoters, or alkyl phosphates.

[0025] The technical solution of the present invention has the following significant beneficial effects:

[0026] When using the vehicle glass mask described in this invention, a cover plate is placed over the vehicle glass. The transition plate of the cover plate covers the film-coated areas of the vehicle glass, while the covering plate covers the uncoated areas. Specifically, a gradient perforated structure is provided on the transition plate of the cover plate. This gradient perforated structure allows the film layer distribution on the vehicle glass to gradually decrease from the edge to the center. The gradually transitioning film layer provides a gradual heat reflection effect, effectively regulating the temperature distribution of the vehicle glass during the forming process. This allows the temperature to gradually increase from the film-coated area to the uncoated area, avoiding abrupt temperature changes caused by sudden film layer distribution. This helps to make the temperature field on the glass surface more uniform, thereby reducing the impact of thermal stress on the glass shape. Furthermore, the gradual temperature change caused by the film layer on the vehicle glass prevents distortion or deformation caused by excessive local temperature differences during heating, ensuring a smooth glass surface and avoiding unevenness caused by sudden temperature changes, thus significantly improving the overall quality of the glass. Furthermore, the smoothness and distortion-free characteristics of the glass surface further enhance its optical performance, particularly the quality of refraction, thus better meeting customer demands for the appearance and function of vehicle glass. This invention, by optimizing the film layer distribution, not only improves the heat reflection performance of the glass but also ensures the aesthetics and functionality of the coated glass, thereby enhancing the product's market competitiveness and customer satisfaction. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] The accompanying drawings described herein are for illustrative purposes only and are not intended to limit the scope of the invention in any way. Furthermore, the shapes and proportions of the components in the drawings are merely illustrative to aid in understanding the invention and do not specifically limit the shapes and proportions of the components. Those skilled in the art, guided by the teachings of this invention, can select various possible shapes and proportions to implement the invention according to specific circumstances.

[0029] Figure 1 This is a schematic diagram of the structure of a first embodiment of the vehicle glass mask described in this invention;

[0030] Figure 2 This is a schematic diagram of the structure of a second embodiment of the vehicle glass mask described in this invention;

[0031] Figure 3 This is a schematic diagram of the third embodiment of the vehicle glass mask described in this invention;

[0032] Figure 4 This is a schematic diagram of the fourth embodiment of the vehicle glass mask described in this invention;

[0033] Figure 5 This is a schematic diagram of the fifth embodiment of the vehicle glass mask described in this invention;

[0034] Figure 6 This is a schematic diagram of the sixth embodiment of the vehicle glass mask described in this invention;

[0035] Figure 7 for Figure 1 A schematic cross-sectional view of the first embodiment of the AA section;

[0036] Figure 8 for Figure 1 A schematic cross-sectional view of the second embodiment of the AA section;

[0037] Figure 9 for Figure 1 A schematic cross-sectional view of the third embodiment of the AA section;

[0038] Figure 10 This is a cross-sectional structural diagram of one embodiment of the anti-slip tape and modified film layer described in this invention.

[0039] The reference numerals in the above figures are as follows:

[0040] 100. Cover plate; 101. Front; 102. Back; 110. Transition plate; 120. Cover plate;

[0041] 200. Gradient hollow structure; 210. Gradient hole; 220. Concave-convex structure; 221. Corrugated part; 222. Serrated part;

[0042] 300°, chamfered structure; 310°, rounded corner; 320°, beveled angle;

[0043] 400. Stepped structure;

[0044] 500. Anti-slip tape;

[0045] 600. Modified film layer. Detailed Implementation

[0046] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0047] Please refer to the following: Figures 1 to 10 As shown, an embodiment of the present invention provides a vehicle glass mask, which includes a cover plate 100 and a gradient perforated structure 200. The cover plate 100 includes a transition plate 110 for covering the film area of ​​the vehicle glass and a cover plate 120 for covering the film-free area of ​​the vehicle glass. The gradient perforated structure 200 is disposed on the transition plate 110. Along the direction from the transition plate 110 to the cover plate 120, the perforated area of ​​the gradient perforated structure 200 gradually decreases. The gradient perforated structure 200 is used to form a gradually transitioning film layer distribution on the film area of ​​the vehicle glass.

[0048] Overall, when the vehicle glass mask is used, the cover plate 100 is placed over the vehicle glass. The transition plate 110 of the cover plate 100 can cover the filmed area of ​​the vehicle glass, while the covering plate 120 of the cover plate 100 can cover the unfilmed area of ​​the vehicle glass.

[0049] A gradient perforated structure 200 is provided on the transition plate 110 of the cover plate 100. The gradient perforated structure 200 enables the film layer distribution on the vehicle glass to gradually decrease from the edge to the middle of the vehicle glass. The gradually transitioning film layer can play a gradual heat reflection role, thereby effectively regulating the temperature distribution of the vehicle glass during the forming process. The temperature gradually increases from the film area to the non-film area, avoiding the temperature change problem caused by the sudden change in film layer distribution. This helps to make the temperature field on the glass surface more uniform, thereby reducing the impact of thermal stress on the glass shape.

[0050] Furthermore, the gradual temperature change achieved through the film layer on the vehicle glass prevents distortion or deformation caused by excessive localized temperature differences during heating, ensuring a smooth glass surface and avoiding unevenness due to sudden temperature changes. This significantly improves the overall quality of the glass. The smoothness and distortion-free nature of the glass surface further enhances its optical performance, particularly the quality of refraction, better meeting customer demands for both the appearance and function of vehicle glass. Moreover, the gradient film layer allows light or electromagnetic waves to pass through, enabling the normal operation of information interaction components.

[0051] This invention optimizes the film layer distribution, which not only improves the heat reflection performance of glass, but also ensures the aesthetics and functionality of the coated glass, thereby enhancing the product's market competitiveness and customer satisfaction.

[0052] In one feasible embodiment of the present invention, such as Figure 1 , Figure 2 , Figure 3 In the embodiment shown, the gradient hollow structure 200 includes a plurality of gradient holes 210 disposed on the transition plate 110. The plurality of gradient holes 210 are arranged in an array to form a gradient hole array. Along the direction from the transition plate 110 to the cover plate 120, the gradient holes 210 are provided in at least two rows. The aperture size of each gradient hole 210 located in the same row is the same, and the aperture size of the gradient holes 210 located in different rows gradually decreases.

[0053] By setting multiple rows of gradient holes 210, with the aperture of different rows of gradient holes 210 gradually decreasing, the difference in film distribution in the film area can be effectively controlled. By utilizing the thermal reflection effect of the gradually set film, the temperature gradient change of the glass during the heating process is further optimized, avoiding the problem of thermal stress concentration caused by abrupt changes in the film, thereby significantly reducing the risk of glass deformation and improving the optical performance of the glass after forming.

[0054] Designers can adjust the specific arrangement of the gradient hole array according to usage requirements, and no specific restrictions are imposed here. Preferably, the gradient holes 210 are arranged in N rows, where N≥2, and the area of ​​the gradient holes 210 located in the Nth row satisfies the following formula: SN =kS n-1 In the formula, S N S represents the area of ​​the gradient hole 210 located in the Nth row. N-1 Let be the area of ​​the gradient hole 210 located in the (N-1)th row, and k be the variation coefficient, 0.25≤k≤0.8.

[0055] Along the direction from the transition plate 110 to the cover plate 120, that is, along the edge to the center of the vehicle glass, the area of ​​the gradient holes 210 located in different rows is calculated according to formula S. N =kS n-1 The decreasing arrangement allows the distribution area of ​​the film layer to change gradually.

[0056] By setting the range of the variation coefficient k, a reasonable attenuation ratio between the areas of adjacent rows of gradient holes 210 is ensured, thereby effectively avoiding the problem of uneven film distribution caused by the area of ​​the gradient holes 210 changing too fast or too slow.

[0057] Furthermore, the gap between the Nth row and the (N-1th row) of the gradient holes 210 satisfies the following formula: X n-1 =A√(S) N-1 / 3.14); where 0.5≤A≤1.5.

[0058] The gap size between adjacent rows of gradient holes 210 is determined by formula X. n-1 =A√(S) N-1 / 3.14) control ensures that the spacing between adjacent rows of gradient holes 210 changes in a preset ratio with the hole area, thereby optimizing the transition effect of the film area, avoiding uneven film distribution caused by excessively large or small hole spacing, further improving the temperature uniformity of the glass during the heating process, reducing the impact of thermal stress on the glass shape, and ensuring the smoothness of the glass surface and the stability of optical performance.

[0059] In an embodiment of the present invention, the area of ​​the gradient holes 210 located in the first row is 3 mm. 2 Up to 80mm 2 By setting the area range of the gradient holes 210 located in the first row to 3mm. 2 Up to 80mm 2 This invention can meet the requirements for film layer transition effects in different application scenarios. By providing a wide design range, this invention is applicable to a variety of glass products of various specifications and types.

[0060] Designers can determine the aperture size of the gradient holes 210 according to usage requirements; no specific numerical limit is specified here. Preferably, the area of ​​the gradient holes 210 located in the first row is 12 mm². 2 Up to 30mm 2 .

[0061] By further limiting the area of ​​the gradient holes 210 located in the first row to 12mm 2 Up to 30mm 2 The transition uniformity of the film layer was further optimized, thereby effectively controlling the rate of area change of the film layer from the film-coated area to the film-free area. This avoided the problem of abrupt temperature gradient changes caused by excessively large or small pore sizes, significantly improved the uniformity of thermal stress distribution in the glass during the heating process, and thus reduced the risk of glass deformation.

[0062] In one feasible embodiment, the aperture size of the gradient holes 210 located in the first row is 12mm. 2 In another feasible embodiment, the diameter of the gradient holes 210 located in the first row is 20mm. 2 In another feasible embodiment, the aperture size of the gradient holes 210 located in the first row is 30mm. 2 .

[0063] In embodiments of the present invention, such as Figure 1 In the embodiment shown, the gap size L1 between adjacent gradient holes 210 in the first row is 2 mm to 6 mm.

[0064] By setting the gap size L1 between adjacent gradient holes 210 in the first row to 2mm to 6mm, the width of the transition region and the uniformity of temperature distribution of the film can be effectively controlled. Smaller gaps allow for a tighter hole arrangement, suitable for areas requiring high-precision film transitions, while larger gaps are suitable for low-precision or large-area transition regions.

[0065] Designers can adjust the gap between adjacent gradient holes 210 in the first row according to usage requirements; no specific limitations are imposed here. In one feasible embodiment, the gap between adjacent gradient holes 210 in the first row is 2 mm. In another feasible embodiment, the gap between adjacent gradient holes 210 in the first row is 4 mm. In yet another feasible embodiment, the gap between adjacent gradient holes 210 in the first row is 6 mm.

[0066] In embodiments of the present invention, such as Figure 1 In the embodiment shown, the distance L2 between the gradient hole array and the edge of the cover plate 100 is 10 mm to 40 mm.

[0067] By setting the spacing L2 between the gradient hole array and the edge of the cover plate 100 to 10mm to 40mm, this range avoids both the increased processing difficulty caused by too small a spacing and the risk of cracking at the edge of the cover plate 100, and the impact on the distribution effect of the film layer caused by too large a spacing.

[0068] Furthermore, the gradient hole array is spaced apart from the edge of the cover plate 100, which allows the membrane layer to be kept away from the edge of the cover plate 100. This not only reduces the risk of membrane peeling and ensures the thermal insulation performance of the membrane layer, but also avoids the risk of the membrane layer oxidizing at the edge of the cover plate 100.

[0069] Designers can adjust the spacing between the gradient hole array and the edge of the cover plate 100 according to usage requirements, without specific limitations. Preferably, the spacing between the gradient hole array and the edge of the cover plate 100 is 20mm to 30mm.

[0070] In one feasible embodiment, the distance between the gradient hole array and the edge of the cover plate 100 is 20 mm. In another feasible embodiment, the distance between the gradient hole array and the edge of the cover plate 100 is 25 mm. In yet another feasible embodiment, the distance between the gradient hole array and the edge of the cover plate 100 is 30 mm.

[0071] In embodiments of the present invention, such as Figure 1 , Figure 2 , Figure 3 In the illustrated embodiment, the gradient hole 210 is one of a polygon, a circle, or an ellipse. Designers can determine the shape of the gradient hole 210 according to their needs; no specific limitations are imposed here. In one feasible embodiment, the gradient hole 210 is a polygon, such as a triangle, quadrilateral, or pentagon. In another feasible embodiment, the gradient hole 210 is a circle. In yet another feasible embodiment, the gradient hole 210 is an ellipse.

[0072] Of course, in other feasible embodiments, designers may set the gradient hole 210 to other shapes as needed, without specific limitations.

[0073] In another feasible embodiment of the present invention, such as Figure 4 , Figure 5 , Figure 6 In the embodiment shown, the gradient cutout structure 200 includes a concave-convex structure 220 disposed on the edge of the transition plate 110, and the dimension L3 of the concave-convex structure 220 in the direction from the transition plate 110 to the cover plate 120 is 2mm to 40mm.

[0074] By setting a concave-convex structure 220 on the edge of the transition plate 110, the concave-convex structure 220 can form multiple spaced notches. The film layer can be transitionally distributed by using each notch. In the process of forming, the temperature of the vehicle glass gradually increases from the film area to the non-film area, avoiding the stress concentration problem caused by sudden temperature changes. This ensures that the glass surface is smooth and effectively prevents the glass from twisting and deforming due to uneven temperature.

[0075] Furthermore, by setting the dimension L3 of the concave-convex structure 220 in the direction from the transition plate 110 to the cover plate 120 to 2mm to 40mm, both processing feasibility and functional requirements can be taken into account, while ensuring the accuracy of the film layer transition and enhancing the overall structural stability of the cover plate 100.

[0076] Designers can determine the height of the concave-convex structure 220 in the direction from the transition plate 110 to the cover plate 120 according to the usage requirements, and no specific limitation is made here. Preferably, the dimension L3 of the concave-convex structure 220 in the direction from the transition plate 110 to the cover plate 120 is 10mm to 30mm.

[0077] In one feasible embodiment, such as Figure 4 In the illustrated embodiment, the dimension L3 of the concave-convex structure 220 in the direction from the transition plate 110 to the cover plate 120 is 10 mm. In another feasible embodiment, the dimension L3 of the concave-convex structure 220 in the direction from the transition plate 110 to the cover plate 120 is 20 mm. In yet another feasible embodiment, the dimension L3 of the concave-convex structure 220 in the direction from the transition plate 110 to the cover plate 120 is 30 mm.

[0078] In one specific embodiment of the present invention, such as Figure 5 In the embodiment shown, the concave-convex structure 220 includes a plurality of corrugated portions 221 arranged at intervals along the edge of the transition plate 110. The width of the corrugated portions 221 gradually increases along the direction from the transition plate 110 to the cover plate 120, and the minimum spacing L4 between adjacent corrugated portions 221 is 2 mm to 10 mm.

[0079] By controlling the width of the corrugated section 221 to gradually change, the film layer can be gradually distributed, ensuring the uniformity of temperature change in the transition area of ​​the film layer and avoiding glass surface distortion or stress concentration caused by sudden temperature changes.

[0080] Designers can adjust the minimum spacing between adjacent corrugated sections 221 according to usage requirements, without specific limitations. For example, the minimum spacing L4 between adjacent corrugated sections 221 can be 2mm, 5mm, or 10mm.

[0081] In another specific embodiment of the present invention, such as Figure 6 In the embodiment shown, the concave-convex structure 220 includes a plurality of serrated portions 222 arranged at intervals along the edge of the transition plate 110. The width of the serrated portions 222 gradually increases along the direction from the transition plate 110 to the cover plate 120, and the minimum spacing L5 between adjacent serrated portions 222 is 2 mm to 10 mm.

[0082] By controlling the width of the serrated portion 222 to gradually change, the film layer can be gradually distributed, ensuring the uniformity of temperature change in the transition area of ​​the film layer and avoiding glass surface distortion or stress concentration caused by sudden temperature changes.

[0083] Designers can adjust the minimum spacing between adjacent serrated sections 222 according to usage requirements, without specific limitations. For example, the minimum spacing L5 between adjacent serrated sections 222 can be 2mm, 5mm, or 10mm.

[0084] Of course, in other specific embodiments of the present invention, the designer may adjust the specific shape and structure of the concave-convex structure 220 according to the needs of use, and no specific limitation is made here. For example, the concave-convex structure 220 includes a plurality of serrated portions 222 and a plurality of corrugated portions 221 arranged at intervals along the edge of the transition plate 110, and the plurality of serrated portions 222 and the plurality of corrugated portions 221 are arranged at intervals.

[0085] In another feasible embodiment of the present invention, the gradient hollow structure 200 includes a plurality of gradient holes 210 disposed on the transition plate 110, and a concave-convex structure 220 disposed on the edge of the transition plate 110.

[0086] By combining the gradient aperture 210 with the concave-convex structure 220, the film layer distribution on the vehicle glass can gradually decrease from the edge to the center of the vehicle glass. The gradually transitioning film layer can play a role in gradual heat reflection, thereby effectively regulating the temperature distribution of the vehicle glass during the forming process. The temperature gradually increases from the film-coated area to the uncoated area, avoiding the problem of temperature abrupt changes caused by abrupt changes in film layer distribution. This helps to make the temperature field on the glass surface more uniform, thereby reducing the impact of thermal stress on the glass shape, enhancing the optical performance of vehicle glass products, and thus better meeting customer needs.

[0087] Furthermore, by combining the gradient hole 210 with the concave-convex structure 220, the expandability of the gradient hollow structure 200 is enhanced, thereby enabling the formation of a more controllable hollow area on the cover plate 100, allowing the film layer to be distributed in a gradient manner and optimizing the film layer distribution effect.

[0088] According to the light diffraction effect, when a coating material passes through a mask, diffraction occurs, resulting in double images or blurred areas in the actual imaging. This phenomenon is called "ghosting," and the width of the ghost directly affects the accuracy and quality of the final coating pattern. The effective thickness of the mask edge is one of the key factors determining the width of the ghost; the lower the effective mask thickness, the lower the width of the ghost boundary.

[0089] To reduce ghosting width, in one feasible embodiment of the present invention, such as Figure 7 and Figure 8In the embodiment shown, the cutout edge of the gradient cutout structure 200 is provided with a chamfer structure 300 connecting the two end faces of the cover plate 100; the chamfer structure 300 is a rounded corner 310 connecting the two end faces of the cover plate 100, and the radius of the rounded corner 310 is 2mm to 8mm; or, the chamfer structure 300 is a chamfered angle 320 connecting the two end faces of the cover plate 100, and the angle α of the chamfered angle 320 is 30° to 60°.

[0090] By setting a chamfer structure 300 along the thickness direction of the vehicle glass mask, the effective thickness of the mask edge can be reduced, thereby reducing the ghosting width and helping to improve the accuracy and quality of the coating pattern.

[0091] In one specific embodiment, such as Figure 7 In the illustrated embodiment, the chamfer structure 300 consists of rounded corners 310 on both end faces of the connecting cover plate 100, with a radius R of 2mm to 8mm. Designers can adjust the specific radius of the rounded corners 310 according to usage requirements; no specific limitation is made here. For example, the radius R of the rounded corners 310 can be 2mm, 4mm, or 8mm.

[0092] In another specific embodiment, such as Figure 8 In the illustrated embodiment, the chamfer structure 300 is a chamfered angle 320 connecting the two end faces of the cover plate 100, and the angle of the chamfered angle 320 is 30° to 60°. Designers can adjust the specific radius of the chamfered angle 320 according to usage requirements, and no specific limitation is made here. For example, the angle of the chamfered angle 320 can be 30°, 45°, or 60°.

[0093] To reduce ghosting width, in another feasible embodiment of the present invention, such as Figure 9 In the embodiment shown, the hollow edge of the gradient hollow structure 200 is provided with a stepped structure 400 connecting the two end faces of the cover plate 100. Along the thickness direction of the cover plate 100, the sinking height L6 of the stepped surface of the stepped structure 400 is 0.3mm to 1mm.

[0094] By setting the stepped structure 400 along the thickness direction of the vehicle glass mask, the effective thickness of the mask edge can be reduced, thereby reducing the ghosting width and helping to improve the accuracy and quality of the coating pattern.

[0095] Designers can adjust the depth of the step surface of the step structure 400 according to usage needs, without specific restrictions. For example, the depth L6 of the step surface of the step structure 400 can be 0.3mm, 0.5mm, or 1mm.

[0096] Designers may adjust the specific material of the cover plate 100 according to usage requirements, and no specific restrictions are imposed here. Preferably, the material of the cover plate 100 is one of stainless steel, aluminum alloy or titanium alloy.

[0097] In one feasible embodiment, the cover plate 100 is made of stainless steel. In another feasible embodiment, the cover plate 100 is made of aluminum alloy. In yet another feasible embodiment, the cover plate 100 is made of titanium alloy.

[0098] Furthermore, designers can adjust the processing method of the cover plate 100 according to usage requirements, without specific limitations. Preferably, the cover plate 100 can be made of metal sheet by laser cutting.

[0099] In embodiments of the present invention, such as Figure 7 In the illustrated embodiment, the thickness of the cover plate 100 is 1 mm to 3 mm; and / or, the area of ​​the cover plate 100 is 0.1 m². 2 Up to 1m 2 .

[0100] By setting the thickness of the cover plate 100 to 1mm to 3mm, it is possible to ensure that the cover plate 100 has sufficient strength and rigidity, while avoiding ghosting problems caused by excessive thickness or deformation problems caused by excessive thinness.

[0101] Designers can adjust the specific thickness and area of ​​the cover plate 100 according to usage requirements; no specific limitations are imposed here. Preferably, the thickness L7 of the cover plate 100 is 1mm to 3mm; the area of ​​the cover plate 100 is 0.1m². 2 Up to 1m 2 .

[0102] In one feasible embodiment, the thickness L7 of the cover plate 100 is 1 mm, and the area of ​​the cover plate 100 is 0.1 m². 2 In another feasible embodiment, the thickness L7 of the cover plate 100 is 2 mm, and the area of ​​the cover plate 100 is 0.5 m². 2 In another feasible embodiment, the thickness L7 of the cover plate 100 is 3 mm, and the area of ​​the cover plate 100 is 1 m². 2 .

[0103] In embodiments of the present invention, such as Figure 1 In the embodiment shown, at least a portion of the edge region of the cover plate 100 forms a transition plate 110, and the remaining region of the cover plate 100 forms a covering plate 120.

[0104] By designing at least a portion of the edge area of ​​the cover plate 100 as a transition plate 110 and the remaining area as a shielding plate 120, functional zoning can be effectively achieved. The transition plate 110 is used to achieve a gradual transition of the film layer from the film-coated area to the film-free area, avoiding stress concentration and glass surface distortion caused by sudden temperature changes. The shielding plate 120 is used to ensure that the film-free area of ​​the vehicle glass is completely shielded to prevent the formation of a film layer.

[0105] This partitioned design not only improves the rationality and functionality of the overall structure, but also enhances the adaptability and reliability of the mask, meeting the high requirements for temperature control and stress distribution in different scenarios, thereby ensuring the quality of glass forming and the sintering effect of the film layer.

[0106] Designers may adjust the specific shape and structure of the cover plate 100 according to usage needs, and no specific limitations are imposed here. In one feasible embodiment, the cover plate 100 is rectangular and is divided into two regions, one region being the transition plate 110 and the other region being the cover plate 120.

[0107] In embodiments of the present invention, such as Figure 10 In the embodiment shown, the vehicle glass mask also includes an anti-slip tape 500, which is disposed on the back 102 of the cover plate 120 and is formed of rubber or silicone material.

[0108] By setting an anti-slip tape 500 on the back 102 of the mask body, the stability of the vehicle glass mask during use is improved. The good elasticity and friction properties of rubber or silicone materials effectively prevent the mask from shifting due to vibration or external force during high-temperature sintering, thereby ensuring the accuracy and consistency of the film pattern.

[0109] In addition, the anti-slip tape 500 also has a certain cushioning effect, which can protect the glass surface from scratches and damage. At the same time, the properties of the rubber or silicone material make it easy to adhere and remove without leaving any adhesive residue, further improving its practicality and reliability.

[0110] Designers can determine the specific material of the anti-slip tape 500 according to the application requirements, and no specific limitations are imposed here. In one feasible embodiment, the anti-slip tape 500 is molded from a rubber material. In another feasible embodiment, the anti-slip tape 500 is molded from a silicone material.

[0111] In embodiments of the present invention, such as Figure 10In the embodiment shown, the vehicle glass mask further includes a modified film layer 600, which is adhered to the front side 101 of the cover plate 100. The modified film layer 600 is formed by an adhesion promoter, which includes one or more combinations of organosilane adhesion promoters, organotitanic acid adhesion promoters, zircon adhesion promoters, zirconium aluminate adhesion promoters, or alkyl phosphates.

[0112] By applying a modified film layer 600 to the front surface 101 of the cover plate 100, the chemical resistance and mechanical properties of the cover plate 100 are improved, enhancing its stability during high-temperature sintering and preventing detachment or cracking due to differences in thermal expansion coefficients, thereby extending the service life of the cover plate 100. Designers can adjust the specific material of the modified film layer 600 according to application requirements; no specific limitations are imposed here.

[0113] All articles and references disclosed herein, including patent applications and publications, are incorporated herein by reference for various purposes. The term “substantially constitutes…” used to describe a combination should include the identified element, component, part, or step, as well as other elements, components, parts, or steps that do not substantially affect the essential novelty of the combination. The use of the terms “comprising” or “including” to describe combinations of elements, components, parts, or steps herein also contemplates embodiments substantially constituted by such elements, components, parts, or steps. The use of the term “may” herein is intended to indicate that any described attribute “may” include is optional. Multiple elements, components, parts, or steps can be provided by a single integrated element, component, part, or step. Alternatively, a single integrated element, component, part, or step can be divided into multiple separate elements, components, parts, or steps. The disclosure of “a” or “an” used to describe an element, component, part, or step does not imply exclusion of other elements, components, parts, or steps.

[0114] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They should not be construed as limiting the scope of protection of the present invention. All equivalent changes or modifications made according to the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A vehicle glass mask, characterized in that, include: A cover plate, the cover plate including a transition plate for covering a film-covered area of ​​a vehicle glass and a cover plate for covering a non-film-covered area of ​​the vehicle glass; A gradient cutout structure is provided on the transition plate. Along the direction from the transition plate to the cover plate, the cutout area of ​​the gradient cutout structure gradually decreases. The gradient cutout structure is used to form a gradually transitioning film layer distribution on the film area of ​​the vehicle glass.

2. The vehicle glass mask as described in claim 1, characterized in that, The gradient hollow structure includes multiple gradient holes disposed on the transition plate. The multiple gradient holes are arranged in an array to form a gradient hole array. Along the direction from the transition plate to the cover plate, the gradient holes are provided in at least two rows. The diameter of each gradient hole in the same row is the same, and the diameter of the gradient holes in different rows gradually decreases.

3. The vehicle glass mask as described in claim 2, characterized in that, The gradient holes are arranged in N rows, where N≥2. The area of ​​the gradient hole in the Nth row satisfies the following formula: S N =kS n-1 In the formula, S N S is the area of ​​the gradient hole located in the Nth row. N-1 Let be the area of ​​the gradient hole located in the (N-1)th row, and k be the variation coefficient, where 0.25 ≤ k ≤ 0.

8.

4. The vehicle glass mask as described in claim 3, characterized in that, The gap between the Nth row and the (N-1th)th row of the gradient holes satisfies the following formula: X n-1 =A√(S) N-1 / 3.14); where 0.5≤A≤1.

5.

5. The vehicle glass mask as described in claim 3, characterized in that, The area of ​​the gradient holes located in the first row is 3mm. 2 Up to 80mm 2 .

6. The vehicle glass mask as described in claim 3, characterized in that, The gap between adjacent gradient holes in the first row is 2mm to 6mm.

7. The vehicle glass mask as described in claim 2, characterized in that, The distance between the gradient hole array and the edge of the cover plate is 10mm to 40mm.

8. The vehicle glass mask as described in claim 2, characterized in that, The gradient hole can be one of the following shapes: polygonal, circular, or elliptical.

9. The vehicle glass mask as described in claim 1 or 2, characterized in that, The gradient hollow structure includes a concave-convex structure disposed on the edge of the transition plate, wherein the dimension of the concave-convex structure in the direction from the transition plate to the cover plate is 2mm to 40mm.

10. The vehicle glass mask as described in claim 9, characterized in that, The concave-convex structure includes a plurality of corrugated portions arranged at intervals along the edge of the transition plate. The width of the corrugated portions gradually increases along the direction from the transition plate to the cover plate, and the minimum spacing between adjacent corrugated portions is 2 mm to 10 mm.

11. The vehicle glass mask as claimed in claim 9, characterized in that, The concave-convex structure includes a plurality of serrated portions arranged at intervals along the edge of the transition plate. The width of the serrated portions gradually increases along the direction from the transition plate to the cover plate, and the minimum spacing between adjacent serrated portions is 2 mm to 10 mm.

12. The vehicle glass mask as claimed in claim 1, characterized in that, The perforated edge of the gradient hollow structure is provided with a chamfered structure connecting the two end faces of the cover plate; the chamfered structure is a rounded corner connecting the two end faces of the cover plate, and the radius of the rounded corner is 2mm to 8mm; or, the chamfered structure is a beveled angle connecting the two end faces of the cover plate, and the angle of the beveled angle is 30° to 60°.

13. The vehicle glass mask as claimed in claim 1, characterized in that, The perforated edge of the gradient hollow structure is provided with a stepped structure connecting the two end faces of the cover plate. Along the thickness direction of the cover plate, the step surface of the stepped structure has a downward height of 0.3mm to 1mm.

14. The vehicle glass mask as claimed in claim 1, characterized in that, The cover plate is made of one of stainless steel, aluminum alloy or titanium alloy.

15. The vehicle glass mask as claimed in claim 1, characterized in that, The cover plate has a thickness of 1 mm to 3 mm; and / or, the area of ​​the cover plate is 0.1 m². 2 Up to 1m 2 .

16. The vehicle glass mask as claimed in claim 1, characterized in that, At least a portion of the edge region of the cover plate forms the transition plate body, and the remaining region of the cover plate forms the cover plate body.

17. The vehicle glass mask as claimed in claim 1, characterized in that, The vehicle glass mask also includes an anti-slip tape, which is disposed on the back of the mask body and is formed from rubber or silicone material.

18. The vehicle glass mask as claimed in claim 1, characterized in that, The vehicle glass mask also includes a modified film layer, which is adhered to the front side of the cover plate. The modified film layer is formed by an adhesion promoter, which includes one or more combinations of organosilane adhesion promoters, organotitanic acid adhesion promoters, zircon adhesion promoters, zirconium aluminate adhesion promoters, or alkyl phosphates.

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