Front windshield assembly and automobile

Abstract

The utility model provides a front windshield assembly and an automobile, the front windshield assembly comprises a front windshield body, the front windshield body comprises a glass inner plate, a glass outer plate and a light sensation liquid crystal film, the light sensation liquid crystal film is arranged between the glass inner plate and the glass outer plate, the front windshield assembly further comprises an outer PVB film, an inner PVB film and an inner PVB film, the light-sensitive liquid crystal film is arranged between the glass outer plate and the light-sensitive liquid crystal film; and the inner piece PVB film is arranged between the glass inner plate and the light sensation liquid crystal film. According to the technical scheme, the outer PVB film and the inner PVB film are arranged, supporting is provided for the outer side and the inner side of the light-sensitive liquid crystal film, good supporting force can be provided for the light-sensitive liquid crystal film in the automobile advancing process, shaking of the light-sensitive liquid crystal film is reduced, and the stability of the light-sensitive liquid crystal film is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobiles, and more specifically, to a front windshield assembly and an automobile. Background Art

[0002] With the penetration and popularization of automotive intelligence and networking, automotive accessories have been greatly improved, and users have put forward higher requirements for the use of automotive functions. At the current stage, in order to cope with the impact of sunlight or the dazzling light of oncoming vehicles at night on the vehicle occupants, in the case of strong sunlight, users will manually rotate the sun visor by a certain angle to achieve the sunshade / sunlight blocking effect, and in other cases, it is retracted by rotating the rotating shaft. During the use of the sun visor, firstly, the user only holds the steering wheel with one hand and needs to find a suitable position at the same time, which will distract the user's attention and bring unsafe factors to driving; secondly, during the driving of the vehicle, the change in the angle of the road surface will cause a change in the angle between the sunlight irradiation and the vehicle, resulting in the user constantly operating the sun visor as the driving environment changes, with poor usability; in addition, during the unfolding process of the sun visor, it completely blocks the partial line of sight, making it difficult to directly observe high-position objects such as traffic lights; at the same time, the space between it and the head is small, resulting in a reduction in the user's comfort. Moreover, when there is suddenly strong light from an oncoming vehicle at night, it is dazzling, and there is no time to unfold the sun visor, causing discomfort and potential safety hazards during driving.

[0003] Chinese Patent CN112895856A proposes a windshield for a vehicle and a vehicle, wherein the windshield includes an outer glass panel and an inner glass panel; an electrochromic layer, and the electrochromic layer is disposed between the outer glass panel and the inner glass panel, and the electrochromic layer includes a plurality of color-changing regions.

[0004] This solution disposes the electrochromic layer between the outer glass panel and the inner glass panel. Generally, a light-sensitive liquid crystal film is used as the raw material of the electrochromic layer. However, there are no other supporting members between the inner glass panel and the outer glass panel. Since there may be a lot of bumps during the driving of the vehicle, it is easy to cause the shaking of the light-sensitive liquid crystal film, thereby affecting the stability of the light-sensitive liquid crystal film. Summary of the Utility Model

[0005] In view of this, the purpose of the embodiments of the present application is to provide a front windshield assembly, which can improve the problem of instability of the light-sensitive liquid crystal film caused by bumps during the driving of the vehicle.

[0006] To achieve the above technical purpose, the technical solution adopted by the present application is as follows:

[0007] In a first aspect, an embodiment of the present application provides a front windshield assembly, including a front windshield body, the front windshield body including a glass inner plate, a glass outer plate, and a light-sensitive liquid crystal film, the light-sensitive liquid crystal film being arranged between the glass inner plate and the glass outer plate, and further including:

[0008] An outer PVB film arranged between the glass outer plate and the light-sensitive liquid crystal film;

[0009] An inner PVB film arranged between the glass inner plate and the light-sensitive liquid crystal film.

[0010] Further, the front windshield assembly further includes an intermediate PVB film arranged between the light-sensitive liquid crystal film and the outer PVB film.

[0011] Further, an edge of the front windshield has a first black surface, and in a direction intersecting with the glass outer plate, a boundary of the light-sensitive liquid crystal film coincides with the first black surface.

[0012] Further, a light sensor is installed on the glass inner plate, the front windshield body has a second black surface, the second black surface is located around the light sensor, and there is a spacing between the second black surface and the boundary of the light-sensitive liquid crystal film, such that the light sensor can receive ambient light in the spacing.

[0013] Further, the front windshield body has a second black surface, the second black surface is located around the light sensor, and there is a spacing between the second black surface and the depression, such that the light sensor can receive ambient light in the spacing.

[0014] Further, the front windshield assembly further includes a light-sensitive liquid crystal film controller, the light-sensitive liquid crystal film controller is installed on the glass inner plate, and the light-sensitive liquid crystal film controller is electrically connected to the light sensor for receiving an electrical signal sent by the light sensor.

[0015] Further, an installation area is provided on the front windshield body for installing the light sensor, and a boundary of the light-sensitive liquid crystal film forms a depression in a corresponding part of the installation area for avoiding the installation area.

[0016] Further, the installation area is located in the middle of the front windshield body in the X direction, the installation area is provided with a front windshield bracket, the light sensor is installed on the front windshield bracket, the light sensor is electrically connected to the light-sensitive liquid crystal film, and the X direction is based on the vehicle coordinate system.

[0017] Further, the installation area is provided with an inner rearview mirror base for installing an inner rearview mirror.

[0018] On the other hand, the present application provides a vehicle, including the above-mentioned front windshield assembly.

[0019] The utility model adopting the above technical solution has the following advantages:

[0020] In the technical solution provided by the present application, an outer PVB film and an inner PVB film are provided, which provide support on both the outer side and the inner side of the light-sensitive liquid crystal film. During the driving of the vehicle, good support force can be provided for the light-sensitive liquid crystal film, reducing the shaking of the light-sensitive liquid crystal film and improving the stability of the light-sensitive liquid crystal film. Description of the Drawings

[0021] The present application can be further illustrated by the non-limiting embodiments shown in the drawings. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0022] Figure 1 It is a schematic diagram of the front windshield structure.

[0023] Figure 2 It is a schematic diagram of the layout of the front windshield assembly.

[0024] Figure 3 It is a schematic diagram of the layout of the light-sensitive liquid crystal film.

[0025] Reference Signs: 1 - outer glass panel, 2 - inner glass panel, 3 - light-sensitive liquid crystal film, 4 - outer PVB film, 5 - intermediate PVB film, 6 - inner PVB film, 7 - front windshield edge strip, 8 - front windshield stud, 9 - front windshield bracket, 10 - light sensor, 11 - inner rearview mirror base, 12 - light-sensitive liquid crystal film controller, 13 - controller wiring harness, 14 - front windshield glue path, 15 - spacer, 16 - light-sensitive liquid crystal film frame glue, 17 - light-sensitive liquid crystal film bus bar, 18 - light-sensitive liquid crystal film connection wiring harness, 19 - Area B of the front windshield assembly, 20 - first black surface, 21 - second black surface. Detailed Embodiments

[0026] The following will describe the present application in detail with reference to the drawings and specific embodiments. It should be noted that in the drawings or the description, similar or identical parts are denoted by the same reference numerals, and the implementation manners not shown or described in the drawings are the forms known to those of ordinary skill in the art. In the description of the present application, the terms "first", "second", etc. are only used for distinguishing descriptions and should not be construed as indicating or implying relative importance.

[0027] This embodiment provides a front windshield assembly, as Figure 1As shown in the figure, the front windshield assembly proposed in this embodiment is a laminated glass, which includes a glass outer plate 1 and a glass inner plate 2. A light-sensitive liquid crystal film 3, an outer PVB film 4, an intermediate PVB film 5, and an inner PVB film 6 are provided in the interlayer between the glass outer plate 1 and the glass inner plate 2. Among them, the inner PVB film 6 is arranged between the light-sensitive liquid crystal film 3 and the glass inner plate 2, the intermediate PVB film 5 is arranged between the light-sensitive liquid crystal film 3 and the glass outer plate 1, and the outer PVB film 4 is arranged between the glass outer plate 1 and the intermediate PVB film 5. It can be understood that after the glass outer plate 1 and the glass inner plate 2 are laminated, the glass inner plate 2 faces the interior of the vehicle, and the glass outer plate 1 faces the exterior of the vehicle. The outer PVB film 4, the intermediate PVB film 5, and the inner PVB film 6 are sandwiched therein, playing a role in connecting the light-sensitive liquid crystal film 3.

[0028] In this embodiment, an outer PVB film 4 and an inner PVB film 6 are arranged between the glass outer plate 1 and the glass inner plate 2. The outer PVB film 4 forms a support for the outer side surface (close to the glass outer plate 1) of the light-sensitive liquid crystal film 3, and the inner PVB film 6 forms a support for the inner side surface (close to the glass inner plate 2) of the light-sensitive liquid crystal film 3. Thus, after the glass outer plate 1 and the glass inner plate 2 are laminated, the outer PVB film 4 and the inner PVB film 6 clamp the light-sensitive liquid crystal film 3, effectively improving the stability of the light-sensitive liquid crystal film 3. At the same time, combined with the intermediate PVB film 5, the stability of the light-sensitive liquid crystal film 3 is further improved.

[0029] As Figure 2 shown in the figure, after the glass outer plate 1 and the glass inner plate 2 are laminated in this application, a front windshield edge strip 7 is bonded to the edge of the laminated front windshield assembly, which reduces wind resistance noise and plays a role in covering up defects.

[0030] Two stud posts 8 are bonded to the side of the glass inner plate 2 close to the interior of the vehicle, which play a positioning role when assembling the front windshield assembly.

[0031] An installation area is set on the front windshield assembly. This installation area is located in the middle in the Y direction. Then, a front windshield bracket 9 is bonded to the installation area. The front windshield bracket 9 serves as the installation point for components such as a light sensor 10 and a lane departure controller. That is, the light sensor 10 is installed on the front windshield bracket 9 in the installation area.

[0032] An inner rearview mirror base 11 is also bonded in the installation area to provide an installation position for the inner rearview mirror.

[0033] In this embodiment, the light-sensitive liquid crystal film controller 12 is bonded to the glass inner plate with tape. It judges the signal from the light sensor 10 and outputs a corresponding voltage signal; the controller wire harness 13 is used to connect the light-sensitive liquid crystal film controller 12 and the light sensor 10, providing voltage input and input light intensity signal for the controller to realize the circuit connection.

[0034] As Figure 3 shown, before laminating the front windshield single-piece glass assembly, the black edges on both sides of the front windshield glass assembly and the black edges on both sides of the light sensor are printed on the front windshield single-piece glass, and then pressed into the glass outer plate 1 through high temperature; at the same time, on another production line, the lace edges on four sides of the front windshield glass assembly, the black edges on four sides of the front windshield glass assembly, and the black edges on both sides of the light sensor are printed on the front windshield single-piece glass, and then pressed into the glass inner plate 2 through high temperature.

[0035] After the glass outer plate 1 and the glass inner plate 2 are formed, the outer PVB film 4, the middle PVB film 5, the light-sensitive liquid crystal film 3, and the inner PVB film 6 are sequentially placed in the middle, and then laminated in an autoclave to obtain the front windshield single-piece glass assembly. The light-sensitive liquid crystal film 3 is etched into multiple polygons, and the etching boundary cannot be seen under the same light transmittance, which will not cause appearance defects.

[0036] See Figure 2 and Figure 3 , in this embodiment, after laminating, the black edges on four sides of the front windshield glass assembly and the black edges on two sides of the front windshield glass assembly form the first black surface 20. The first black surface 20 can prevent the structure inside the sandwich of the glass inner plate 2 and the glass outer plate 1 from being seen from the side, playing a role in covering up defects.

[0037] The first black surface 20 is located at the edge of the front windshield glass assembly, and the first black surface 20 in this embodiment forms a "frame" structure, following the shape of the front windshield glass assembly. The width of the light-sensitive liquid crystal film 3 in this embodiment is greater than the widths of the black edges on four sides of the front windshield glass assembly and the black edges on two sides of the front windshield glass assembly. In the direction intersecting with the glass outer plate 1, the boundary between the first black surface 20 and the light-sensitive liquid crystal film 3 coincides, achieving black edge shielding, so that the user cannot see the edge of the light-sensitive liquid crystal film 3 and avoiding appearance defects.

[0038] Furthermore, the light-sensitive liquid crystal film frame adhesive 16 is wrapped around the edge of the light-sensitive liquid crystal film 3 to protect the boundary of the light-sensitive liquid crystal film 3. At this time, the light-sensitive liquid crystal film frame adhesive 16 constitutes the boundary of the light-sensitive liquid crystal film 3. Since the lower boundary color of the light-sensitive liquid crystal film frame adhesive 16 cannot be blocked, the overlapping area with the B area 19 of the front windshield glass assembly is made into a gradually changing state from the bright state of the light-sensitive liquid crystal film 3 to the color of the glass itself. For the other three sides, the light-sensitive liquid crystal film frame adhesive 16 is wider than the black edges on two sides of the front windshield glass assembly and the black edges on four sides of the front windshield glass assembly, and coincides with the first black surface, achieving black edge shielding and reducing appearance defects.

[0039] Similarly, after laminating, the black edges on two sides of the glass outer plate 1 and the black edges on two sides of the glass inner plate 2 form the second black surface 21. The second black surface 21 is arranged around the light sensor 10 to block the structure inside the light sensor 10, playing an effect of covering up defects. In this embodiment, a part of the boundary of the light-sensitive liquid crystal film 3 is a concave structure for avoiding the installation area.

[0040] Therefore, in this embodiment, a spacing is provided between the boundary of the second black surface 21 and the light-sensitive liquid crystal film 3. This spacing can be understood as a safety distance. The setting of this safety distance enables the light-sensitive liquid crystal film 3 to receive ambient light in the interval even when the light transmittance is at its lowest, avoiding the occlusion of the receiving mechanism of the light sensor when the light transmittance of the light-sensitive liquid crystal film becomes low, thereby affecting the accuracy of light intensity judgment.

[0041] See Figure 2 and Figure 3 , it further includes a light-sensitive liquid crystal film frame adhesive 16, a light-sensitive liquid crystal film bus bar 17, and a light-sensitive liquid crystal film connection wire harness 18; the controller supplies power and signals to the upper part of the light-sensitive liquid crystal film 3 to connect to the light-sensitive liquid crystal film bus bar 17, which is the positive and negative power input terminals of the film, and connects the bus bar and the controller through the light-sensitive liquid crystal film connection wire harness. The controller is then connected to the vehicle power supply and the signal line of the light sensor 10 to form a complete circuit.

[0042] In this embodiment, the light sensor 10 collects data on the ambient light outside the vehicle through the glass, converts the collected data into a light intensity value, and inputs it to the light-sensitive liquid crystal film controller 12. The light-sensitive liquid crystal film controller 12 outputs different results by judging the magnitude of the light intensity value and the set limit value. If the light intensity value is less than the minimum limit value, the light-sensitive liquid crystal film controller 12 does not output voltage to the liquid crystal film, and the light transmittance of the light-sensitive liquid crystal film 3 does not change and remains in the most transparent state; if the light intensity value is greater than the minimum limit value and less than the maximum limit value, the light-sensitive liquid crystal film controller 12 sets a calculation formula through software, keeps the output power unchanged, changes the output matching voltage value, thereby changing the light transmittance of the light-sensitive liquid crystal film 3 in the polygon area where the human eye is located to the corresponding state, and thus changing the overall light transmittance of this part of the front windshield assembly to accurately achieve the shading effect on the human eye; if the light intensity value is greater than the maximum limit value, the light-sensitive liquid crystal film controller 12 keeps the output power unchanged and outputs the maximum voltage value, and the light transmittance of the light-sensitive liquid crystal film 3 in the polygon area where the human eye is located reaches the darkest state.

[0043] This embodiment also proposes a vehicle configured with the above-mentioned front windshield assembly.

[0044] The above description is only for the embodiments of the present application and is not intended to limit the protection scope of the present application. For those skilled in the art, the present application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A front windshield assembly, comprising a front windshield body, the front windshield body including a glass inner panel (2), a glass outer panel (1), and a light-sensitive liquid crystal film (3), the light-sensitive liquid crystal film (3) being disposed between the glass inner panel (2) and the glass outer panel (1), characterized in that, Further comprising: An outer PVB film (4) disposed between the outer glass plate (1) and the light-sensitive liquid crystal film (3); An inner PVB film (6) disposed between the inner glass plate (2) and the light-sensitive liquid crystal film (3).

2. The front windshield assembly according to claim 1, wherein, The front windshield assembly further comprises an intermediate PVB film (5), and the intermediate PVB film (5) is disposed between the light-sensitive liquid crystal film (3) and the outer PVB film (4).

3. The front windshield assembly according to claim 1, wherein A first black surface (20) is provided at the edge of the front windshield. In the direction intersecting with the outer glass plate (1), the boundary of the light-sensitive liquid crystal film (3) coincides with the first black surface (20).

4. The front windshield assembly according to claim 1, characterized in that A light sensor (10) is mounted on the inner glass plate (2). A second black surface (21) is provided on the front windshield body. The second black surface (21) is located around the light sensor (10). There is a spacing between the second black surface (21) and the boundary of the light-sensitive liquid crystal film (3), so that the light sensor (10) can receive ambient light in the spacing.

5. The front windshield assembly according to claim 4, characterized in that, The front windshield assembly further comprises a light-sensitive liquid crystal film controller (12). The light-sensitive liquid crystal film controller (12) is mounted on the inner glass plate (2). The light-sensitive liquid crystal film controller (12) is electrically connected to the light sensor (10) and is used for receiving the electrical signal emitted by the light sensor (10).

6. The front windshield assembly according to claim 1, characterized in that, An installation area is provided on the front windshield body for installing the light sensor (10). The boundary of the light-sensitive liquid crystal film (3) forms a depression at the corresponding part of the installation area for avoiding the installation area.

7. The front windshield assembly according to claim 6, wherein The installation area is located in the middle of the front windshield body in the X direction. The installation area is provided with a front windshield bracket (9). The light sensor (10) is mounted on the front windshield bracket (9). The light sensor (10) is electrically connected to the light-sensitive liquid crystal film (3), and the X direction is based on the vehicle coordinate system.

8. The front windshield assembly according to claim 6, wherein The installation area is provided with an inner rearview mirror base (11) for installing the inner rearview mirror.

9. An automobile, characterized in that: Including the front windshield assembly according to any one of claims 1-8.

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