Vehicle window assembly and vehicle

By using plastic light guides and optical designs in the window assembly, the light from the optical axis is ensured to be reflected in the inner layer of glass and then directed to the inner side of the unbonded inner layer of glass. This solves the problem of low light utilization and brightness of existing window ambient lights, achieves higher light utilization and brightness, and reduces costs.

CN120684683AInactive Publication Date: 2025-09-23FULDA (NINGBO) INTELLIGENT PHOTOELECTRIC CO LTD
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Patent Information

Application Number
CN202510980876.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-16
Publication Date
2025-09-23
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The existing window ambient lights have low light utilization and brightness, resulting in increased costs and heat dissipation problems.

Method used

The use of a plastic light guide with a complex structure, combined with optical design, allows the light from the optical axis to be reflected in the inner glass and then directed to the inner side of the unbonded inner glass, thereby improving light utilization and brightness.

Benefits of technology

It significantly improves the light utilization rate of the window assembly and the brightness of the ambient light, reduces costs and avoids space occupation issues.

✦ Generated by Eureka AI based on patent content.

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Abstract

The vehicle window assembly comprises a glass assembly and an optical assembly, the glass assembly comprises outer-layer glass, a middle interlayer and inner-layer glass, and a reflective layer with a preset pattern is arranged at the preset position between the middle interlayer and the outer side face of the inner-layer glass; the optical assembly comprises a light source and a light guide part, the light guide part comprises a light inlet face, a reflecting face and a light outlet face, the light inlet face is close to the light source, and the light outlet face is fixed to the inner side face of the inner-layer glass through mucilage glue. Light rays emitted by the light source comprise optical axis light rays propagating in the optical axis direction, and the optical axis light rays enter the light inlet face of the light guide part, are totally reflected through the reflecting face and then are emitted out of the light outlet face. The light inlet surface is a condensation curved surface with a condensation effect; the optical assembly is configured to enable optical axis light to enter the inner-layer glass from the light emitting face, and the optical axis light is reflected by the outer side face of the inner-layer glass for the first time and then is emitted to the inner side face of the inner-layer glass without the light guide piece. The automobile window assembly has the beneficial effects that the light utilization rate of the automobile window assembly can be improved, and finally the brightness of the atmosphere lamp of the automobile window assembly is improved.
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Description

Technical Field

[0001] The present invention relates to the field of vehicle windows, and in particular to a vehicle window assembly and a vehicle. Background Art

[0002] With the continuous innovation of automobile technology and the increasing demand for automobile use, the functions of automotive glass used in vehicles are becoming more and more abundant. For example, light groups are integrated into the glass to give the glass a luminous function, so as to create a better light effect and lighting environment in the car, and improve the comfort and pleasure of the passengers in the car.

[0003] Patent CN119459267A shows a structure of an existing skylight atmosphere light, such as Figure 1 As shown, there is a relatively important defect, that is, when the sunroof ambient light is on, the brightness of the overall ambient light is low, or in other words, the light utilization rate of the sunroof ambient light is low. The overall brightness can only be improved by replacing it with a higher-power LED lamp, but this method will significantly increase the cost and will be accompanied by heat dissipation problems. Summary of the Invention

[0004] To overcome the shortcomings of the background art, the present invention provides a vehicle window assembly, a vehicle, and an optical component that can significantly improve light utilization and the brightness of ambient light.

[0005] A vehicle window assembly proposed in the present invention includes a glass component and an optical component. The glass component includes an outer layer of glass, an intermediate layer and an inner layer of glass. A reflective layer with a preset pattern is provided at a preset position between the intermediate layer and the outer side surface of the inner layer of glass; the optical component includes a circuit board and a light source and a light guide provided on the circuit board. The light guide includes a light input surface, a reflective surface and a light output surface. The light input surface is close to the light source, and the light output surface is glued and fixed to the inner side surface of the inner layer of glass; the light emitted by the light source includes an optical axis light propagating along its optical axis direction, and the optical axis light enters the light input surface of the light guide and is totally reflected by the reflective surface before being emitted out of the light output surface; wherein the light input surface is a focusing curved surface with a focusing effect; the optical component is configured so that the optical axis light enters the inner layer of glass from the light output surface and the optical axis light is reflected by the outer side surface of the inner layer of glass for the first time and then emitted to the inner side surface of the inner layer of glass to which the light guide is not glued.

[0006] Furthermore, the reflective surface of the light guide is an outward convex surface, and the reflective surface is configured to converge the light passing through the reflective surface with the optical axis light as the center; the acute angle formed between the tangent of the reflective surface on the cross section of the light guide and the optical axis of the light source gradually increases along the optical axis direction of the light source.

[0007] Furthermore, the optical component is configured so that the light after total reflection by the reflective surface enters the inner glass from the light emitting surface and is reflected by the outer side surface of the inner glass for the first time and then emitted to the inner side surface of the inner glass to which the light guide is not glued.

[0008] Preferably, the optical component is configured so that the reflection point of the light reflected from the near light source when it is first reflected by the outer side surface of the inner glass is closer to the light source than the reflection point of the light of the optical axis when it is first reflected by the outer side surface of the inner glass, and the light reflected from the near light source is light that is closer to the light source than the reflection point of the light of the optical axis on the reflection surface of the light guide.

[0009] Preferably, the optical component is configured so that the reflection point of the light reflected from the high light source when it is first reflected by the outer side surface of the inner glass is closer to the light source than the reflection point of the light of the optical axis when it is first reflected by the outer side surface of the inner glass, and the light reflected from the high light source is light that is farther away from the light source than the reflection point of the light of the optical axis on the reflection surface of the light guide.

[0010] Furthermore, the optical component is configured so that the reflection point of the optical axis light reflected by the outer side surface of the inner glass for the first time exceeds the position directly above the side surface of the light guide member opposite to the reflection surface.

[0011] Furthermore, the divergence angle of the light source is 120 degrees; the light guide also includes a lower end surface opposite to the light emitting surface, and the lower end surface includes a light-shielding portion for avoiding light reflected by the reflecting surface; the light guide also includes a positioning column portion, and the positioning portion extends from the surface of the light-shielding portion toward the circuit board; the circuit board also has a positioning groove portion that cooperates with the positioning column portion.

[0012] Furthermore, the lower end surface also includes a flat portion; the optical component also includes a shell, which covers the circuit board and the light guide, and the shell includes a first adhesive portion and a second adhesive portion, the first adhesive portion is located on a side adjacent to the reflective surface of the light guide and is glued to the inner side surface of the inner layer of glass, and the second adhesive portion is located on a side adjacent to the positioning column portion of the light guide and is glued to the flat portion of the light guide.

[0013] Furthermore, the glass assembly also includes an optical glass adhesive layer, and the light-emitting surface of the light guide is glued to the inner side surface of the inner glass through the optical glass adhesive layer; the light guide is made of plastic.

[0014] The present invention also provides a vehicle comprising the window assembly described above.

[0015] The beneficial effect of the present invention lies in the addition of a light guide to conduct light so that the light emitted by the light source can be directed toward the light-inlet glass at a specific inclination angle. At the same time, the light-inlet surface of the light guide is a focusing curved surface with a focusing effect, so that the light emitted by the light source is concentrated as much as possible toward the optical axis; and the most important thing is that through optical design, the optical component is configured so that the optical axis light entering the inner glass is reflected by the outer side surface of the inner glass for the first time and then directed toward the inner side surface of the inner glass to which the light-inlet glass is not glued, thereby improving the utilization rate of light and ultimately improving the brightness of the ambient light of the car window assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1The invention relates to a vehicle window assembly structure in the existing background technology.

[0017] Figure 2 It is a schematic diagram of the three-dimensional structure of the vehicle window assembly of the embodiment.

[0018] Figure 3 It is a schematic cross-sectional view of the vehicle window assembly of the embodiment.

[0019] Figure 4 It is a schematic diagram of the optical path of the optical axis light.

[0020] Figure 5 It is a schematic diagram of the optical path of each light.

[0021] The figures are marked as follows: 100-glass assembly; 110-outer glass; 120-middle interlayer; 130-inner glass; 131-outer side surface; 132-inner side surface; 140-optical glass glue; 200-optical assembly; 210-housing; 211-first bonding part; 212-second bonding part; 220-circuit board; 230-light source; 231-optical axis light; 232-light reflected from near light source; 233-light reflected from far light source; 240-light guide; 241-light incident surface; 242-reflecting surface; 243-light emitting surface; 244-light shielding part; 245-positioning column; 246-flat part. DETAILED DESCRIPTION

[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0023] For example, see the attached Figure 2-5 A vehicle window assembly includes a glass component 100 and an optical component 200. The glass assembly 100 includes an outer layer of glass 110, an intermediate layer 120, and an inner layer of glass 130 from the outside to the inside. A reflective layer with a preset pattern is provided at a preset position between the intermediate layer 120 and the outer side surface 131 of the inner layer of glass 130. The optical assembly 200 includes a housing 210, a circuit board 220, and a plurality of light sources 230 and a light guide 240 disposed on the circuit board 220. The housing 210 generally covers the circuit board 220 and the light guide 240. The housing 210 and the inner glass 130 are fixedly connected by adhesive to securely connect the optical assembly 200 and the glass assembly 100. The divergence angle of the light source 230 is preferably 120 degrees. The light guide 240 is made of injection-moldable plastic and includes a light-incoming surface 241, a reflective surface 242, and a light-emitting surface 243. The light-incoming surface 241 is adjacent to the light source 230, and the light-emitting surface 243 is glued to the inner surface 132 of the inner glass layer 130 using optical glass adhesive 140. Light emitted by the light source 230 includes an optical axis ray 231 propagating along its optical axis. After entering the light-incoming surface 241 of the light guide, the optical axis ray 231 is totally reflected by the reflective surface 242 and then exits the light-emitting surface 243. Among them, the light-incoming surface 241 is a focusing curved surface with a focusing effect; the optical component 200 is configured so that the optical axis light 231 enters the inner layer of glass 130 from the light-outgoing surface 243 and the optical axis light 231 is reflected by the outer side surface 131 of the inner layer of glass 130 for the first time and then emitted to the inner side surface 132 of the inner layer of glass 130 to which the light guide 240 is not glued; the light propagating in the inner layer of glass 130 is reflected by the reflective layer and then emitted into the vehicle, finally forming an ambient light effect of a preset pattern of light emission of the window assembly.

[0024] In order to better understand the working principle and technical effects of this embodiment, it is necessary to analyze the defects of the patent CN119459267A structure mentioned in the background technology before explaining the working principle and technical effects. Figure 1 Why is the overall brightness of the skylight assembly low? This is because in the field of optics, LED light sources or illuminants actually propagate outward in the form of a light cone. The closer to the optical axis, the greater the energy of the light. The optical axis direction of the illuminant 42 in CN119459267A is basically parallel to the width direction (X axis) of the light guide bar 20. Without considering the absorption of light by the medium itself, the propagation of the light emitted by the illuminant 42 can be divided into three parts: the first part of the light is the light near the optical axis of the illuminant 42. This part of the light enters from the light-incoming side of the light guide bar 20 and the first adhesive member 70 and is directly emitted from the other side of the light guide bar 20 and the first adhesive member 70. This part of the light is close to the optical axis. Secondly, the long-distance propagation of light in the light guide strip 20 or the inner glass 13 depends on the total reflection characteristics of light. Among the light rays that enter the light guide strip 20 and the light incident side of the first adhesive member 70 obliquely near the non-optical axis of the light emitting body 42, the second part of the light rays is the light rays emitted from the other side of the light guide strip 20 and the first adhesive member 70 after one or more total reflections, and the third part of the light rays, that is, the remaining light rays, continue to propagate along the inner glass 13. In summary, the first and second parts of the light rays account for a higher proportion of the overall light rays, but they do not enter the inner glass 13 for propagation but are directly lost, resulting in a very low light utilization rate of the sunroof assembly.

[0025] Based on the above reasons, there are currently two common methods to improve light utilization:

[0026] First, the lower end surface of the light guide strip 20 is set as an inclined surface, that is, the lower end surface of the light guide strip 20 is no longer parallel to the optical axis direction of the light emitting body 42 but at a certain angle, so that the light that contacts the lower end surface of the light guide strip 20 is totally reflected and enters the inner layer of glass 13; although this method is feasible in principle, it is not suitable from the perspective of supply chain and process, because the area of ​​the skylight is very large and can only be manufactured by a specialized glass manufacturer, and the light guide strip 20 fixed to the skylight with glue is very long and needs to serve as the assembly reference of the lamp group 40, so the gluing process of the light guide strip 20 also needs to be completed. Glass manufacturers; generally speaking, the manufacturing process of glass determines that the thickness of the glass should be stable and balanced. If the light guide strip 20 is designed to be an inclined surface, the tip of the light guide strip 20 is fragile. Therefore, its material cannot be glass, and it can only be made of plastic such as PC and acrylic. However, glass manufacturers will not produce plastic light guide strips 20 simply because the light guide strip 20 needs to be made of plastic. Various injection molding equipment and related talents are involved, which will lead to a significant increase in equipment and labor costs. If the glass manufacturer purchases plastic light guide strips 20 from outside, it will also involve an overall cost increase.

[0027] Secondly, the angle at which the light from the light-emitting body 42 enters the light-incoming side of the light-guiding strip 20 and the first adhesive member 70 is adjusted. The main problem with this solution is that the circuit board carrying the light-emitting body 42 also needs to be tilted along with the light-emitting body 42. If the circuit board is tilted, the optical component as a whole will need to occupy more space in the Z-axis direction, which is unacceptable to the vehicle OEM from a design perspective.

[0028] The solution of this embodiment is mainly to improve the existing light-inlet glass made of glass into a light guide 240 made of plastic with a complex structure. The light guide 240 also has the same light-inlet function as the light-inlet glass. At the same time, the light-inlet surface 241 of the light guide is a focusing curved surface with a focusing effect, so that the light emitted by the light source 230 is concentrated as much as possible on the optical axis; and most importantly, through optical design, the optical component 200 is configured so that the optical axis light 231 enters the inner layer of glass 130 from the light-emitting surface 243 and the optical axis light 231 is reflected by the outer surface 131 of the inner layer of glass 130 for the first time and then emitted to the inner surface 132 of the inner layer of glass 130 to which the light guide 240 is not adhered, thereby allowing more light to enter the inner layer of glass 130 and propagate.

[0029] The principle of this embodiment is described in detail below:

[0030] The light emitted by light source 230 propagates outward in the form of a light cone. Since the entire window assembly includes multiple layers of glass, interlayers, and adhesive layers, the light propagation path is actually very complex and full of various reflections and refractions. However, as mentioned earlier, the light energy at the optical axis of light source 230 is the highest. Taking the optical axis light 231 as the research object, as long as the light near the optical axis light 231 is not lost or the loss is minimized, the overall light utilization rate of the window assembly can be guaranteed to a certain extent. Figure 4 As shown, the light rays in segments O1 to O6 are the primary propagation paths of the light rays at the optical axis of light source 230, namely, optical axis light 231. When optical axis light 231 passes through O3 and O4, i.e., when the medium changes, in addition to the refracted rays shown in the figure, there are also reflected rays (not shown). However, since reflected rays are difficult to avoid through structural optimization, there is no need to delve into this. When optical axis light 231 passes through O5, in addition to the reflected rays shown in the figure, there are also refracted rays (not shown). Compared to reflected rays, refracted rays here are more easily propagated within the window assembly and less likely to escape, so there is no need to delve into this either. In general, the main goal of this embodiment is to ensure that the reflected light, that is, the optical axis light 231 in the O5-O6 segment, is not lost. That is, first, it is necessary to ensure that the optical axis light 231 enters the inner layer of glass 130 from the light exit surface 243 rather than being directly emitted from the right side of the light guide 240. Then, it is ensured that the optical axis light 231 is reflected by the outer side surface 131 of the inner layer of glass 130 for the first time and then emitted toward the inner side surface 132 of the inner layer of glass 130 to which the light guide 240 is not adhered. This means that the optical axis light 231 will not return to the light guide 240 after reflection and then be emitted from the right side of the light guide 240. It can be understood that the closer the light is to the optical axis light 231, the more light is retained, and the higher the overall light utilization rate will be.

[0031] It should be noted that, in this embodiment, a simple detection is performed to determine whether the optical axis light 231 is reflected for the first time by the outer side surface 131 of the inner glass 130 in the inner glass 130 and then emitted to the inner side surface 132 of the inner glass 130 to which the light guide 240 is not glued. The original light source 230 can be replaced by a laser. The energy of the laser is very concentrated and can be simply equated with the optical axis light 231. A laser is set at the position of the original light source 230 and is made to enter the light guide 240 at an angle in the direction of the optical axis of the original light source 230. This allows a simple and intuitive determination of whether the laser is ultimately emitted from the light guide 240 or the optical glass glue 140 layer.

[0032] In a vehicle window assembly, to achieve the result that "the optical axis light 231 is reflected from the outer surface 131 of the inner glass 130 for the first time and then emitted to the inner surface 132 of the inner glass 130 to which the light guide 240 is not adhered," the main influencing factors include the width of the light-entering surface 241 of the light guide and the structure of the light guide 240. Specifically, the function of the light-entering surface 241 of the light guide is to guide light into the inner glass 130. Under the premise that the light guide 240 meets the optical performance and assembly process requirements, there is an optimal value for the width of the light-entering surface 241 of the light guide. A value greater than this optimal value means an increase in the cost and weight of the light guide 240, while a value less than this optimal value means that the optical performance may not be met or the process difficulty increases. Therefore, in general, the width of the light-entering surface 241 of the light guide in a vehicle window assembly can be assumed to be the optimal value.

[0033] The structure of the light guide 240 is mainly affected by the structure of the reflective surface 242 of the light guide. In this embodiment, the reflective surface 242 of the light guide is a convex surface. The reflective surface 242 is configured to converge the light passing through the reflective surface 242 with the optical axis light 231 as the center. The acute angle formed between the tangent line of the reflective surface 242 on the cross section of the light guide 240 and the optical axis of the light source 230 gradually increases along the optical axis direction of the light source 230. Figure 5 As shown, light from light source 230 is emitted toward reflective surface 242 in the form of a light cone. Assuming reflective surface 242 is a flat surface, with optical axis ray 231 in the O2-O3 segment passing through reflective surface 242 as a reference, the two reflected dashed rays represent the rays above and below the reflection point of optical axis ray 231. It can be seen that the angle between the reflected light and optical axis ray 231 in the O2-O3 segment increases as the reflected light from reflective surface 242 moves farther from the reflection point O2. As can be imagined, if reflective surface 242 is a flat surface, then after entering light guide 240, more light from light source 230 will escape from the right side of light guide 240. However, if reflective surface 242 is a convex curved surface with a light-converging effect, the angle between the reflected solid light and optical axis ray 231 in the O2-O3 segment will be relatively small. As can be imagined, after entering light guide 240, more light from light source 230 will enter and propagate through inner glass 130.

[0034] Further in-depth research on the brightness effect of the preset pattern of the window assembly's ambient light mainly involves two technical indicators: one is the light utilization rate before the light enters the inner glass 130 and the other is the light absorption rate after the light enters the inner glass 130.

[0035] To improve the utilization rate of light before it enters the inner glass 130 and propagates through it, that is, to minimize the escape of light from the right side of the light guide 240, in this embodiment, the structure of the reflective surface 242 of the light guide is optimized so that the light that has been totally reflected by the reflective surface 242 enters the inner glass 130 from the light-emitting surface 243 and, after a first reflection by the outer side surface 131 of the inner glass 130, is emitted toward the inner side surface 132 of the inner glass 130 to which the light guide 240 is not adhered. In other words, the optimal solution is to prevent all light that has been totally reflected by the reflective surface 242, except for the optical axis light 231, from escaping from the right side of the light guide 240.

[0036] Furthermore, the optical assembly 200 is configured so that the reflection point of the low light source reflected light 232 when it first reflects off the outer side surface 131 of the inner glass 130 is closer to the light source 230 than the reflection point of the optical axis light 231 when it first reflects off the outer side surface 131 of the inner glass 130, and at the same time, the reflection point of the high light source reflected light 233 when it first reflects off the outer side surface 131 of the inner glass 130 is closer to the light source 230 than the reflection point of the optical axis light 231 when it first reflects off the outer side surface 131 of the inner glass 130; the purpose of the former is to increase the incident angle of the low light source reflected light 232 when it passes through the reflecting surface 242 , trying to meet the total reflection condition of the light 232 reflected from the near light source in the light guide 240; and the purpose of the latter is to reduce the curvature change of the upper half reflection surface 242 on the reflection surface 242 of the light guide based on the reflection point of the optical axis light 231, so as to make the overall shape of the reflection surface 242 of the light guide better transition; in the present invention, the light 232 reflected from the near light source is a light whose reflection point on the reflection surface 242 of the light guide is closer to the light source 230 than the reflection point of the optical axis light 231 on the reflection surface 242 of the light guide, and the light 233 reflected from the far light source is a light whose reflection point on the reflection surface 242 of the light guide is farther away from the light source 230 than the reflection point of the optical axis light 231 on the reflection surface 242 of the light guide.

[0037] As for the light absorption rate after the light enters the inner layer of glass 130 and propagates, it is well known that the existing window glass, especially the sunroof glass, is not 100% colorless and transparent. Generally, dark glass with a certain degree of transparency is used, which determines that a part of the light will be absorbed by the glass when it propagates in the glass. Obviously, light propagates in the glass by total internal reflection or reflection. If the light passes through the same distance in the glass, the more times it is reflected, the longer the total propagation path of the light, which means that the glass absorbs more light. Conversely, if the number of reflections is less, the propagation path of the light is shorter, which means that the glass absorbs less light. In this embodiment, in order to minimize light absorption, by optimizing the structure of the reflective surface 242 of the light guide, the reflection point of the optical axis light 231 reflected by the outer side surface 131 of the inner layer of glass 130 for the first time exceeds the side surface of the light guide 240 opposite to the reflective surface 242 (that is, the right side of the light guide 240), that is, Figure 4 The position of the center O5 is further outward than the right side of the light guide 240 .

[0038] In this embodiment, the lower end surface of the light guide 240 opposite to the light emitting surface 243 includes a light-shielding portion 244 and a flat portion 246; wherein, the light-shielding portion 244 is used to avoid the light reflected by the reflecting surface 242, and the flat portion 246 is used to be glued and fixed to the shell 210; the light guide 240 also includes a positioning column portion 245, and the positioning portion extends from the surface of the light-shielding portion 244 toward the circuit board 220; the circuit board 220 also has a positioning groove portion that cooperates with the positioning column portion 245, and the cooperation between the positioning column portion 245 and the positioning groove portion can ensure the position positioning between the light source 230 and the light input surface 241 of the light guide.

[0039] In this embodiment, the housing 210 includes a first adhesive portion 211 and a second adhesive portion 212. The first adhesive portion 211 is located on a side adjacent to the reflective surface 242 of the light guide and is glued and fixed to the inner side surface 132 of the inner layer of glass 130. The second adhesive portion 212 is located on a side adjacent to the positioning column portion 245 of the light guide 240 and is glued and fixed to the flat portion 246 of the light guide 240. In the existing structure, the second adhesive portion 212 of the housing 210 is glued and fixed to the inner layer of glass 130. Obviously, the adhesive layer in this structure will destroy the total reflection condition of the light propagating in the inner layer of glass 130 here, affecting the light output effect. However, this embodiment can avoid this situation.

[0040] Although the present invention has been described with reference to preferred embodiments, it will be understood by those skilled in the art that it is not limited to the above embodiments and that various changes in form and details may be made within the scope of the claims.

Claims

1. A vehicle window assembly, characterized in that: Including glass components, optical components, The glass assembly includes an outer layer of glass, an intermediate layer and an inner layer of glass, and a reflective layer with a preset pattern is provided at a preset position between the intermediate layer and the outer side surface of the inner layer of glass; The optical assembly includes a circuit board, a light source and a light guide member arranged on the circuit board. The light guide comprises a light-incoming surface, a reflecting surface, and a light-emitting surface, wherein the light-incoming surface is close to the light source, and the light-emitting surface is glued and fixed to the inner surface of the inner layer of glass; the light emitted by the light source comprises an optical axis light propagating along its optical axis, and the optical axis light enters the light-incoming surface of the light guide and is totally reflected by the reflecting surface before being emitted from the light-emitting surface; Wherein, the light-incoming surface is a focusing curved surface with a focusing effect; the optical component is configured so that the optical axis light enters the inner layer of glass from the light-emitting surface and the optical axis light is reflected by the outer side surface of the inner layer of glass for the first time and then emitted to the inner side surface of the inner layer of glass to which the light guide is not glued.

2. The vehicle window assembly according to claim 1, characterized in that: The reflecting surface of the light guide is an outward convex surface, and the reflecting surface is configured to converge the light passing through the reflecting surface with the optical axis light as the center; the acute angle formed between the tangent of the reflecting surface on the cross section of the light guide and the optical axis of the light source gradually increases along the direction of the optical axis of the light source.

3. The vehicle window assembly according to claim 2, characterized in that: The optical component is configured so that the light after total reflection by the reflection surface enters the inner glass from the light exit surface and is reflected by the outer side surface of the inner glass for the first time and then emitted to the inner side surface of the inner glass to which the light guide is not glued.

4. The vehicle window assembly according to claim 3, characterized in that: The optical component is configured so that the reflection point of the light reflected from the near light source when it is first reflected by the outer side surface of the inner glass is closer to the light source than the reflection point of the light of the optical axis when it is first reflected by the outer side surface of the inner glass. The light reflected from the near light source is light that is closer to the light source than the reflection point of the light of the optical axis on the reflection surface of the light guide.

5. The vehicle window assembly according to claim 3, characterized in that: The optical component is configured so that the reflection point of the high light source reflected by the outer side surface of the inner glass for the first time is closer to the light source than the reflection point of the optical axis light reflected by the outer side surface of the inner glass for the first time. The high light source reflected by the high light source is light that is farther away from the light source than the reflection point of the optical axis light on the reflection surface of the light guide.

6. The vehicle window assembly according to claim 2, characterized in that: The optical component is configured so that the reflection point of the optical axis light reflected by the outer side surface of the inner glass for the first time exceeds directly above the side surface of the light guide member opposite to the reflection surface.

7. The vehicle window assembly according to claim 1, characterized in that: The divergence angle of the light source is 120 degrees; the lower end surface of the light guide opposite to the light emitting surface also includes a light-shielding portion for avoiding light reflected by the reflecting surface; the light guide also includes a positioning column portion, and the positioning portion extends from the surface of the light-shielding portion toward the circuit board; the circuit board also has a positioning groove portion that cooperates with the positioning column portion.

8. The vehicle window assembly according to claim 7, characterized in that: The lower end surface also includes a flat portion; the optical component also includes a shell, which covers the circuit board and the light guide, and the shell includes a first adhesive portion and a second adhesive portion, the first adhesive portion is located on a side adjacent to the reflective surface of the light guide and is glued to the inner side surface of the inner layer of glass, and the second adhesive portion is located on a side adjacent to the positioning column portion of the light guide and is glued to the flat portion of the light guide.

9. The vehicle window assembly according to claim 1, characterized in that: The glass assembly further comprises an optical glass adhesive layer, and the light-emitting surface of the light guide is glued to the inner side surface of the inner glass layer through the optical glass adhesive layer; the light guide is made of plastic.

10. A vehicle, characterized in that: The vehicle window assembly comprises the vehicle window assembly according to any one of claims 1 to 9.

Citation Information

Patent Citations

  • Glass assembly and vehicle

    CN119459267A