Star sky glass structure and automobile sunroof

Abstract

The utility model provides a kind of starry sky glass structure and automobile sunroof, wherein the starry sky glass structure includes: transparent diaphragm layer, PVB membrane layer and outer cover glass layer are sequentially stacked and set on the first surface of base glass layer;The upper surface of the transparent diaphragm layer is provided with pattern layer, and the pattern of the pattern layer filled with transparent light-reflecting material faces the base glass layer.This utility model can ensure that the pattern of starry sky glass structure is invisible without turning on the light, and realize the overall transparency of starry sky glass structure.

Description

Technical Field

[0001] This utility model relates to the field of automotive sunroof glass technology, and in particular to a starry sky glass structure and an automotive sunroof. Background Technology

[0002] With increasing demands for both the functionality and aesthetics of glass, starry sky glass has become increasingly popular as a type of decorative glass in recent years. The technical feature of starry sky glass lies in the luminous "star" patterns displayed inside the glass. At night or in low-light environments, illuminated by built-in LED lights, it creates a dreamlike visual effect reminiscent of twinkling stars, greatly enhancing the artistic atmosphere and technological feel of a space.

[0003] In existing technologies, such as Figure 1 As shown, a pre-designed starry sky pattern is directly printed onto the upper surface of the base glass layer 1 using a printing process, forming a pattern layer 4. A PVB film layer 2 is sandwiched between the base glass layer 1 and the outer cover glass layer 3, and then bonded together using a high-temperature and high-pressure process. However, because the printing ink itself cannot be completely transparent, and because the pattern layer 4 is located on the upper surface of the base glass layer 1, the starry sky pattern is visible even without lighting. This significantly affects the overall appearance and lowers the end customer's expectations for the proportion of the starry sky.

[0004] Therefore, it is necessary to provide a starry sky glass structure and a car sunroof to solve the above-mentioned problems existing in the prior art. Utility Model Content

[0005] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a starry sky glass structure and a car sunroof to solve the technical problem that starry sky patterns are visible even when the lights are off in the prior art.

[0006] To solve the above-mentioned technical problems, this utility model provides a starry sky glass structure, comprising:

[0007] A transparent film layer, a PVB film layer, and an outer cover glass layer are sequentially stacked on the first surface of the base glass layer;

[0008] The upper surface of the transparent film layer is provided with a pattern layer, and the pattern of the pattern layer filled with transparent reflective material faces the base glass layer.

[0009] The starry sky glass structure provided by this utility model has the following beneficial effects:

[0010] By adding a transparent film layer between the first surface of the base glass layer and the PVB film layer, and placing the pattern of the pattern layer on the upper surface of the transparent film layer with the pattern filled with transparent reflective material facing the base glass layer, when the lights are off, most of the ambient light will directly penetrate the entire structure. Because the transparent reflective material is filled in the pattern, it does not scatter light over a large area, achieving complete transparency in the absence of lights and not affecting normal visual effects. When light enters from below the base glass layer, the transparent reflective material makes the pattern visible, presenting a complete pattern effect. This invention provides a simple starry sky glass structure that achieves a completely transparent effect in the absence of light.

[0011] Furthermore, it also includes an LED light source, which is fixedly mounted on the second surface of the substrate glass layer.

[0012] Furthermore, the transparent film layer is made of transparent PVB film or EVA film.

[0013] Furthermore, the thickness of the transparent film layer is 0.38–0.76 mm.

[0014] Furthermore, the base glass layer is ultra-white glass.

[0015] Furthermore, the thickness of the substrate glass layer is 1.6–2.1 mm.

[0016] Furthermore, the thickness of the PVB film is 0.38–0.76 mm.

[0017] Furthermore, the outer glass layer is made of ultra-clear glass or ordinary transparent glass.

[0018] Furthermore, the thickness of the outer glass layer is 1.6–2.1 mm.

[0019] To solve the above-mentioned technical problems, this utility model also provides a car sunroof, including: the starry sky glass structure as described above.

[0020] The beneficial effects of the car sunroof provided by this utility model are the same as those of the starry sky glass structure described above. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of a patterned starry sky glass structure in the prior art;

[0022] Figure 2 This is a schematic diagram of the starry sky glass structure according to an embodiment of the present invention.

[0023] Component designation explanation

[0024] 1. Base glass layer; 2. PVB film layer; 3. Outer cover glass layer; 4. Pattern layer; 5. Transparent film layer; 6. LED light source. Detailed Implementation

[0025] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0026] It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the implementation of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this utility model, should still fall within the scope of the technical content disclosed in this utility model. The following detailed description should not be considered restrictive, and the scope of the embodiments of this application is limited only by the claims of the published patents. The terminology used herein is for describing specific embodiments only and is not intended to limit this application. Spatial terms such as "upper," "lower," "left," "right," "below," "below," "lower part," "above," "upper part," etc., may be used in the text to illustrate the relationship between one element or feature shown in the figures and another element or feature.

[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," and "holding" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] Furthermore, as used herein, the singular forms “a,” “an,” and “the” are intended to include the plural forms as well, unless the context indicates otherwise. It should be further understood that the terms “comprising,” “including,” indicate the presence of the stated feature, operation, element, component, item, kind, and / or group, but do not preclude the presence, occurrence, or addition of one or more other features, operations, elements, components, items, kinds, and / or groups. The terms “or” and “and / or” as used herein are interpreted as inclusive, or mean any one or any combination thereof. Thus, “A, B, or C” or “A, B, and / or C” means “any one of: A; B; C; A and B; A and C; B and C; A, B, and C.” Exceptions to this definition arise only when combinations of elements, functions, or operations are inherently mutually exclusive in some manner.

[0029] like Figure 2 As shown, an embodiment of this utility model provides a starry sky glass structure, comprising: a transparent film layer 5, a PVB film layer 2, and an outer cover glass layer 3, which are sequentially stacked on the first surface of a base glass layer 1. A pattern layer 4 is disposed on the upper surface of the transparent film layer 5, and the pattern of the pattern layer 4, filled with transparent reflective material, faces the base glass layer 1.

[0030] By adding a transparent film layer 5 between the first surface of the base glass layer 1 and the PVB film layer 2, and placing the pattern of the pattern layer 4 on the upper surface of the transparent film layer 5 with the pattern filled with transparent reflective material facing the base glass layer 1, when the lights are off, most of the ambient light will directly penetrate the entire structure. Because the transparent reflective material is filled in the pattern, it does not scatter light over a large area, achieving full transparency in the absence of lights and not affecting normal visual effects. When light enters from below the base glass layer 1, the filled transparent reflective material makes the pattern visible, presenting a complete pattern effect. This invention's starry sky glass structure is simple, achieving a full transparency effect in the absence of light and without affecting normal visual effects.

[0031] For example, the transparent reflective material may be a high-refractive-index material or a metallic reflective material. If a high-refractive-index material is used, it captures the light rays entering the glass and changes their propagation direction, causing them to scatter from the point where total internal reflection is destroyed toward the end customer's eyes. If a metallic reflective material, such as fine aluminum powder, is used, it directly reflects the light upwards. The light rays reflected or scattered by the pattern points pass upwards through the PVB film layer 2 and the outer cover glass layer 3, making the pattern visible and presenting a complete pattern effect.

[0032] For example, the pattern of the pattern layer 4 is etched onto the transparent film layer 5, and the pits of the pattern are filled with a transparent reflective material of high refractive index material or metallic reflective material.

[0033] like Figure 2 As shown, in some embodiments of this utility model, the starry sky glass structure further includes an LED light source, which is fixedly mounted on the second surface of the base glass layer 1. In this embodiment, fixing the LED light source to the second surface of the base glass layer 1 ensures that light efficiently and uniformly enters the glass interior directly from the bottom of the base glass layer 1.

[0034] like Figure 2 As shown, in some embodiments of this utility model, the transparent film layer 5 is made of transparent PVB film or EVA film. It should be understood that PVB film (Polyvinyl Butyral Film) is a thermoplastic transparent film formed by plasticizing and extruding polyvinyl butyral resin with added plasticizers; EVA film (Ethylene Vinyl Acetate Film) is a thermosetting adhesive film formed by melt extrusion of ethylene-vinyl acetate copolymer resin with added crosslinking agents, antioxidants, and other additives. It should be noted that the choice of material for the transparent film layer 5 must ensure that it can bond with glass and is transparent; no specific material is limited.

[0035] like Figure 2 As shown, in some embodiments of this invention, the thickness of the transparent film layer 5 is 0.38–0.76 mm. Exemplarily, the thickness of the transparent film layer 5 is limited to 0.38 mm, which saves material costs while meeting basic safety requirements. Limiting the thickness of the transparent film layer 5 to 0.76 mm, by stacking two 0.38 mm transparent film layers 5, significantly improves the penetration resistance and impact resistance of the transparent film layer 5, and optimizes the optical effect.

[0036] like Figure 2 As shown, in some embodiments of this invention, the base glass layer 1 is ultra-clear glass. In this embodiment, ultra-clear glass is selected as the base glass layer 1 because it has extremely high light transmittance, resulting in very low light loss when the light from the LED light source is transmitted through the ultra-clear glass. This allows more light energy to reach and activate the reflective pattern of the pattern layer 4, ensuring the brightness of the presented starry sky pattern. It should be understood that ultra-clear glass is made by using purer raw materials and special processes to significantly reduce its iron content (usually below 0.015%), making it appear colorless and transparent.

[0037] like Figure 2As shown, in some embodiments of this invention, the thickness of the base glass layer 1 is 1.6–2.1 mm. In this embodiment, limiting the thickness of the base glass layer 1, which serves as the light guide layer, to 1.6–2.1 mm provides good light guiding properties while ensuring a certain level of mechanical strength. For example, when the thickness of the base glass layer 1 is 1.6 mm, the path of total internal reflection is short when light enters the glass from the bottom, resulting in low internal transmission loss and improved light transmission efficiency.

[0038] like Figure 2 As shown, in some embodiments of this utility model, the thickness of the PVB film layer 2 is 0.38–0.76 mm. Specifically, the thickness of the PVB film layer 2 is selected to be 0.38–0.76 mm to better match the refractive index of the glass and the functional film, reduce useless reflection and light loss at the multilayer interface, and improve the overall light efficiency of the pattern.

[0039] like Figure 2 As shown, in some embodiments of this utility model, the outer cover glass layer 3 is ultra-clear glass or ordinary transparent glass. Specifically, the outer cover glass layer 3 is made of ultra-clear glass, which forms an optical match with the ultra-clear glass of the base glass layer 1 to achieve the aesthetic effect of the presented pattern. It should be understood that ordinary transparent glass contains iron impurities in its raw materials. The presence of ferrous oxide (FeO) and ferric oxide (Fe2O3) makes the glass appear green, and the higher the iron content, the darker the color, that is, it will appear a light green.

[0040] like Figure 2 As shown, in some embodiments of this utility model, the thickness of the outer cover glass layer 3 is 1.6–2.1 mm. Specifically, limiting the thickness of the outer cover glass layer 3 to 1.6–2.1 mm improves light transmittance, ensures the transparency of the glass, and ensures the aesthetics of the overall glass structure.

[0041] An embodiment of this utility model also provides a car sunroof, including: the starry sky glass structure as described above. The car sunroof also includes a sunroof frame, and the starry sky glass structure is fixedly disposed inside the sunroof frame. The structural components and beneficial effects of the car sunroof in this embodiment are described in the foregoing description of the starry sky glass structure, and will not be repeated here.

[0042] In summary, addressing the technical problem that starry sky patterns in existing technologies are visible even without lighting, this invention provides a starry sky glass structure and a car sunroof. By adding a transparent film layer 5 between the first surface of the base glass layer 1 and the PVB film layer 2, and placing the pattern of the pattern layer 4 on the upper surface of the transparent film layer 5, with the pattern filled with transparent reflective material facing the base glass layer 1, most ambient light penetrates the entire structure when the lights are off. Because the transparent reflective material fills the pattern, it does not scatter light over a large area, achieving full transparency without affecting normal visual effects. When light enters from below the base glass layer 1, the transparent reflective material makes the pattern visible, presenting a complete pattern effect. The starry sky glass structure of this invention is simple, the lamination process is the same as for normal glass, and the pattern is etched onto the transparent film layer 5, which is convenient and allows for pattern modification, enabling pattern diversity. Therefore, this invention effectively overcomes the various shortcomings of existing technologies and has high industrial application value.

[0043] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A starry sky glass structure, characterized in that, include: A transparent film layer, a PVB film layer, and an outer cover glass layer are sequentially stacked on the first surface of the base glass layer; The upper surface of the transparent film layer is provided with a pattern layer, and the pattern of the pattern layer filled with transparent reflective material faces the base glass layer.

2. The starry sky glass structure according to claim 1, characterized in that, It also includes an LED light source, which is fixedly mounted on the second surface of the base glass layer.

3. The starry sky glass structure according to claim 1, characterized in that, The transparent film layer is made of transparent PVB film or EVA film.

4. The starry sky glass structure according to claim 3, characterized in that, The thickness of the transparent film layer is 0.38–0.76 mm.

5. The starry sky glass structure according to claim 1, characterized in that, The base glass layer is ultra-clear glass.

6. The starry sky glass structure according to claim 5, characterized in that, The thickness of the base glass layer is 1.6 to 2.1 mm.

7. The starry sky glass structure according to claim 1, characterized in that, The thickness of the PVB film is 0.38–0.76 mm.

8. The starry sky glass structure according to claim 1, characterized in that, The outer glass layer is made of ultra-clear glass or ordinary transparent glass.

9. The starry sky glass structure according to claim 8, characterized in that, The thickness of the outer glass layer is 1.6–2.1 mm.

10. A car sunroof, characterized in that, include: The starry sky glass structure as described in any one of claims 1 to 9.

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