Intelligent sunshade awning for passenger car and car roof

Abstract

The utility model discloses an intelligent sunshade awning for a passenger car, which belongs to the technical field of awning for vehicles and comprises a support plate and a dimming film, the dimming film is arranged on the sunny surface of the support plate, and transparent powder particles are arranged on one surface, close to the support plate, of the dimming film. The powder particles support the light adjusting film so that the small gap between the light adjusting film and the supporting plate is larger than or equal to the set distance. The utility model further discloses a car roof, the car roof comprises the awning glass and the sunshade awning, the sunshade awning comprises the intelligent sunshade awning for the passenger car, and the intelligent sunshade awning for the passenger car is arranged on the shady side of the awning glass. The transparent powder particles are arranged on the face, close to the supporting plate, of the light adjusting film, the light adjusting film is supported through the powder particles, the small gap between the light adjusting film and the supporting plate is raised, and therefore necessary conditions of natural light reflection interference are destroyed, rainbow lines are eliminated, the visual experience of passengers is improved, and the use experience of the passengers is improved.

Description

Technical Field

[0001] This utility model relates to the field of automotive sunroof technology, and more specifically, to a smart sunshade sunroof and roof for passenger vehicles. Background Technology

[0002] When designing and manufacturing new energy vehicles, the height of the cabin floor is higher than that of traditional gasoline vehicles, taking into account the chassis and battery space, resulting in an overall raised cabin space. During the design process, to avoid altering the vehicle's external height, new energy vehicles generally use an integrated glass sunroof to replace the original roof structure, thus thinning the roof and ensuring the cabin's interior space remains unchanged. However, a single glass sunroof leads to uncontrolled light and heat radiation within the cabin.

[0003] In recent years, dimming films have been widely used in automotive sunroofs, allowing for switching between fog and transparent states as needed. While some vehicles use pre-installed dimming film sunroofs, many more opt for aftermarket dimming film sunroofs for sun shading. Aftermarket dimming film sunroofs are suitable for various vehicle models and are easy and quick to install.

[0004] Aftermarket sunroofs typically consist of a light-switching film and a support plate, with the support plate being detachably fixed to the vehicle's sunroof glass. The light-switching film is positioned between the support plate and the sunroof glass.

[0005] When the dimming film is simply placed on a support plate and fixed at the edges, under the influence of gravity, some areas of the dimming film will fit tightly against the support plate, while most areas, especially the edge areas, will have small gaps with the support plate. The dimming film at these gaps will form a curved surface. If the gap exceeds a certain threshold, natural light will effectively interfere, producing rainbow patterns, which degrades the passenger's visual experience and affects the user experience. Utility Model Content

[0006] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a smart sunshade canopy and roof for passenger vehicles, which can solve the problem of rainbow patterns caused by small gaps between the dimming film and the support plate, thereby improving the visual experience and user experience of passengers.

[0007] To achieve the above objectives, this utility model provides an intelligent sunshade for passenger vehicles, including a support plate and a dimming film. The dimming film is disposed on the sun-facing surface of the support plate, and transparent powder particles are disposed on the side of the dimming film close to the support plate. The powder particles support the dimming film so that the small gap between the dimming film and the support plate is greater than or equal to a set distance.

[0008] In one embodiment, the distance is set to 5 to 20 micrometers.

[0009] In one embodiment, the average spacing between powder particles is 100 to 500 micrometers or the number of powder particles per square millimeter is 5 to 115.

[0010] In one embodiment, the powder particles adhere to the side of the dimming film near the support plate.

[0011] In one embodiment, the powder particles consist of particles of a single size or a mixture of particles of different sizes; wherein the largest particle size is 20 micrometers and the smallest particle size is 5 micrometers.

[0012] In one embodiment, the side of the support plate facing away from the sun is provided with a hardened coating.

[0013] This utility model also provides a passenger vehicle roof, including a panoramic glass and a sunshade, the sunshade including the above-mentioned intelligent sunshade for passenger vehicles, the intelligent sunshade for passenger vehicles being disposed on the side of the panoramic glass facing away from the sun.

[0014] In one embodiment, the intelligent sunshade canopy of a passenger vehicle is detachably fixed to the side of the canopy glass facing away from the sun by fasteners.

[0015] In one embodiment, the fastener includes a plurality of hooks and latches, which are respectively fixed to the side of the support plate facing the skylight glass and the side of the skylight glass facing the support plate. The hooks and latches on the surface of the support plate and the surface of the skylight glass are positioned correspondingly, and the hooks and latches at corresponding positions on the surfaces of the support plate and the skylight glass are interlocked.

[0016] In one embodiment, the dimming film located at the hook fastener position of the support plate has a groove for the hook fastener to be installed.

[0017] In one embodiment, an adhesive layer is used to attach the hooks and latches to the support plate and the canopy glass.

[0018] In one embodiment, an undercoating layer for adhesion is provided between the adhesive layer and the support plate and between the adhesive layer and the canopy glass.

[0019] In one embodiment, the hook and loop fastener includes a mushroom-shaped fastener.

[0020] Compared with the prior art, the technical solution provided by this utility model has the following advantages:

[0021] (1) Place transparent powder particles on the side of the dimming film close to the support plate. Use the powder particles to support the dimming film so that the small gap between the dimming film and the support plate is greater than or equal to the set distance. This increases the small gap between the dimming film and the support plate, thereby destroying the necessary conditions for natural reflection interference and eliminating rainbow patterns. This helps to improve the visual experience of passengers and enhance their user experience.

[0022] (2) The hooks and buckles are used to fasten each other, which facilitates the disassembly and assembly of the support plate and the skylight glass. The installation is firm, which can limit the bonding between the support plate and the skylight glass, and provide sufficient stress to the support plate so that the support plate arches and bends, better fits the skylight glass surface, and reduces the occupation of the cabin's interior height.

[0023] (3) The single-layer powder particles are used as the anti-rainbow layer and the support plate and skylight glass are detachably fixed by hooks and buckles. The structure is reasonable, the principle is simple, the cost is low, and it is easy to promote and use. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the specific structure of a smart sunshade canopy and roof for a passenger vehicle provided in this embodiment;

[0025] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0026] Figure 3 This is a schematic diagram illustrating the installation positional relationship between the dimming film, the support plate, and the hook fasteners provided in this embodiment.

[0027] Figure 4 This is a schematic diagram of the specific structure of the mushroom-shaped hook and loop fastener provided in this embodiment.

[0028] Reference numerals: 1. Dimming film; 2. Support plate; 3. Powder particles; 4. Skylight glass; 5. Hook and fastener; 6. Base coating; 7. Groove. Detailed Implementation

[0029] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings and embodiments.

[0030] The structures, proportions, and sizes illustrated in the accompanying drawings are merely for illustrative purposes and to aid those skilled in the art in understanding and reading the invention. They are not intended to limit the scope of the invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of the invention, should still fall within the scope of the technical content disclosed in this utility model. Furthermore, terms such as "upper," "lower," "left," "right," and "middle" used in this specification are merely for clarity and not intended to limit the scope of implementation. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this application.

[0031] In this application, the side directly exposed to sunlight is designated as the sun-facing side, and the side not directly exposed to sunlight is designated as the shaded side. During actual installation, the sun-facing side faces upwards, i.e., away from the car's passenger compartment; the shaded side faces downwards, i.e., towards the car's passenger compartment.

[0032] like Figure 1 As shown, considering that the gap between the dimming film 1 and the support plate 2 is the cause of the rainbow pattern, this application eliminates the rainbow pattern by raising the gap to destroy the necessary condition for natural light interference.

[0033] Specifically, this application provides a smart sunshade for passenger vehicles, including a support plate 2 and a dimming film 1. The dimming film 1 is disposed on the sun-facing surface of the support plate 2. The dimming film 1 is fixed to the support plate 2 by providing adhesive tape or adhesive coating at the edge of the dimming film 1. The side of the dimming film 1 near the support plate 2 is provided with transparent powder particles 3. The powder particles 3 support the dimming film 1 so that the small gap between the dimming film 1 and the support plate 2 is greater than or equal to a set distance.

[0034] Powder particles 3 are fixed as an anti-rainbow layer on the side of the dimming film 1 near the support plate 2, making the small gap between the dimming film 1 and the support plate 2 greater than or equal to a set distance. This raises the small gap between the dimming film 1 and the support plate 2, thereby disrupting the necessary conditions for natural light interference and eliminating rainbow patterns. This helps improve the passenger's visual experience and enhances the passenger's user experience. Furthermore, while eliminating rainbow patterns, the structure is simple and low-cost.

[0035] The powder particles 3 in this application are preferably spherical or approximately spherical. The contact surface between the spherical powder particles 3 and the dimming film 1 and the support plate 2 is approximately a point, which can better support the dimming film 1. That is, when a plurality of uniform powder particles 3 support the dimming film 1, it helps to keep the arched bending state of the dimming film 1 approximately the same as the arched bending state of the support plate 2, and ensures that the small gap between the dimming film 1 and the support plate 2 is greater than or equal to the set distance.

[0036] In one embodiment, the powder particles 3 are disposed between the dimming film 1 and the support plate 2 and fixed thereon. In actual operation, due to process requirements, it is preferable to place them on the side of the dimming film 1 closer to the support plate 2.

[0037] In one embodiment, the distance is set to 5 to 20 micrometers. Preferably, it is 20 micrometers.

[0038] When the distance is set to 5 micrometers, the rainbow pattern is no longer noticeable. To effectively prevent the formation of the rainbow pattern, experiments have shown that the preferred distance for this application is 20 micrometers, thereby effectively solving the problem of the rainbow pattern.

[0039] In one embodiment, a coating containing powder particles 3 is sprayed onto the dimming film 1 and dries quickly after spraying, allowing the powder particles 3 to adhere to the coating surface. The solution spraying method ensures that the powder particles 3 fall evenly onto the surface of the dimming film 1 and adhere, thereby providing stable support for the dimming film 1.

[0040] In one embodiment, the average spacing between powder particles 3 is 100 to 500 micrometers or the number of powder particles 3 per square millimeter is 5 to 115.

[0041] Since too many powder particles 3 in a certain area are costly, and too few powder particles 3 are insufficient to support the dimming film 1, resulting in uneven bending of the dimming film 1, the average spacing between powder particles 3 is selected to be 100 to 500 micrometers or the number of powder particles 3 per square millimeter is 5 to 115, so that the bending of the dimming film 1 is more uniform and continuous when the powder particles 3 support the dimming film 1.

[0042] In one embodiment, the dimming film 1 includes, but is not limited to: polymer-dispersed liquid crystal dimming film (PDLC film), dye-doped polymer-dispersed liquid crystal dimming film (DPDLC film), suspended nanoparticle film (SPD film), and electrochromic dimming film (EC film).

[0043] In one embodiment, the support plate 2 is a transparent plastic sheet, the material of which includes, but is not limited to, PC (polycarbonate) sheet, PMMA (plexiglass) sheet, and PET (polyethylene terephthalate) sheet.

[0044] In one embodiment, an OCA optical adhesive film is disposed between the dimming film 1 and the support plate 2 to form an adhesive film layer. The adhesive film layer is used to bond the dimming film 1 and the support plate 2, which on the one hand ensures that there is a certain distance between the dimming film 1 and the support plate 2, and on the other hand eliminates the air gap between the dimming film 1 and the support plate 2, thereby destroying the necessary conditions for natural light interference and thus eliminating rainbow patterns.

[0045] In one embodiment, the coefficient of thermal expansion of the PC board is 6.5 × 10⁻⁶. -5 cm / cm / ℃; The coefficient of thermal expansion of PMMA sheet is 6.8×10⁻⁶. -5 The coefficient of thermal expansion of ordinary PET material varies greatly depending on the manufacturing process, with a minimum of 2.3 × 10⁻⁶ cm / cm / ℃. -5 cm / cm / ℃, up to 10×10 -5cm / cm / ℃. In this embodiment, the thermal expansion coefficient of the substrate PET of the dimming film 1 is preferably controlled at 6.6×10-5cm / cm / ℃, thereby ensuring that the thermal expansion coefficients of the support plate 2 and the dimming film 1 are similar, avoiding excessive cooling or heating that would bring additional stress to the structure, thus ensuring that the dimming film 1 and the support plate 2 are always bonded together, and preventing the dimming film 1 from warping and delaminating.

[0046] In one embodiment, the thickness of the adhesive film layer is 50 to 100 micrometers; the glass transition temperature of the adhesive film layer is less than -30°C. By setting the adhesive film layer to have a certain thickness and a sufficiently low glass transition temperature, stress can be further dispersed, preventing the dimming film 1 and the support plate 2 from delaminating.

[0047] like Figure 2 As shown, in this application, the support plate 2 is arched and curved to better fit the surface of the panoramic glass 4. When the support plate 2 is thin, the arched and curved surface of the support plate 2 is prone to collapse, causing the support plate 2 to sway up and down during vehicle operation; when the support plate 2 is thick, the support plate 2 is less likely to form an arched and curved surface.

[0048] Therefore, in this embodiment, the thickness of the support plate 2 is selected to be 2 mm to 3 mm, preferably 2.5 mm, so that the thickness of the support plate 2 is moderate and can prevent it from wobbling up and down while arching and bending.

[0049] In one embodiment, the powder particles 3 are adhered to the side of the dimming film 1 near the support plate 2.

[0050] The powder particles 3 are bonded to the side of the dimming film 1 near the support plate 2, so that the position of the powder particles 3 is fixed, preventing the powder particles 3 from moving irregularly between the dimming film 1 and the support plate 2 when the vehicle moves. This ensures that the distance between the dimming film 1 and the support plate 2 is always greater than or equal to 20 micrometers, thereby eliminating rainbow patterns and improving reliability.

[0051] In one embodiment, the powder particles 3 make the small gap between the dimming film 1 and the support plate 2 greater than or equal to a set distance. When the small gap is less than the set distance, it will effectively interfere with natural light, thus forming rainbow patterns. In this embodiment, the powder particles 3 are used to raise the small gap to a distance greater than or equal to the set distance, thereby destroying the necessary condition for natural light interference and eliminating rainbow patterns.

[0052] In one embodiment, the powder particles 3 consist of particles of a single particle size or a mixture of particles of different particle sizes; wherein the largest particle size is 20 micrometers and the smallest particle size is 5 micrometers.

[0053] In this embodiment, powder particles 3 with a maximum particle size of 20 micrometers are selected to make the coating, thereby avoiding the particle size of the powder particles 3 being too large and causing a grainy texture that can be observed with the naked eye, which helps to avoid affecting the appearance of the product.

[0054] In one embodiment, since powder particles 3 of a single size require manufacturers to screen them one by one using precision instruments, the cost is high, while powder particles 3 composed of a mixture of particles of different sizes are less expensive. Without considering cost, the powder particles 3 consist entirely of particles of a single size.

[0055] The preferred setting distance in this application is 20 micrometers. Since the dimming film 1 itself has a certain rigidity on a planar scale of several hundred micrometers, as long as the powder particles 3 contain a certain proportion of powder particles 3 with a particle size of 20 micrometers, the dimming film 1 can be supported, maintaining an air gap of not less than 20 micrometers between it and the support plate 2. Considering that the cost would be too high if all the powder particles 3 in the coating had a particle size of 20 micrometers, in actual production of coatings containing powder particles 3, various powder particles 3 of different sizes are mixed and dissolved in a set solvent to form the coating. The coating contains at least a certain proportion of powder particles 3 with a particle size of 20 micrometers.

[0056] In one embodiment, the powder particles 3 are made of styrene-divinylbenzene crosslinked copolymer and are approximately spherical in shape (produced by emulsion polymerization); the solvent is isopropanol.

[0057] The powder particles 3 are made of styrene-divinylbenzene cross-linked copolymer, and their outer layer is coated with an acrylic pressure-sensitive adhesive material with a thickness of no more than 1 micrometer, which makes the powder particles 3 sticky, thus facilitating the adhesion of the powder particles 3 to the dimming film 1 and improving reliability.

[0058] In one embodiment, the proportion (by weight) of powder particles 3 in the solvent is 0.1% to 1%, preferably 0.3%. Lower concentrations facilitate spraying, avoid nozzle clogging caused by higher concentrations, and also ensure more uniform spraying of powder particles 3 onto the dimming film 1, thereby forming a uniform layer of powder particles 3. Furthermore, using a low concentration of powder particles 3 helps prevent them from affecting the light transmittance of the canopy.

[0059] In one embodiment, the side of the support plate 2 closest to the cabin is provided with a hardening coating. The hardening coating increases the surface hardness of the support plate 2, which helps to prevent irreparable scratches from being left on the surface of the support plate 2 during cleaning such as wiping. Depending on the application environment of the aftermarket dimming film canopy, a surface hardness of 2H can meet the needs of daily cleaning and regular use.

[0060] This utility model also provides a passenger vehicle roof, including a panoramic glass 4 and a sunshade awning. The sunshade awning includes the aforementioned intelligent sunshade awning for passenger vehicles, which is located on the shaded side of the panoramic glass 4. Thus, by utilizing the aforementioned intelligent sunshade awning, rainbow patterns can be effectively eliminated, helping to improve the visual and user experience for passengers. Furthermore, while eliminating rainbow patterns, the structure is simple and low-cost.

[0061] In one embodiment, the intelligent sunshade awning for passenger vehicles is detachably fixed to the shaded side of the awning glass 4 using fasteners. This detachable fixing method makes it easy to assemble and disassemble the intelligent sunshade awning and the awning glass 4, facilitating maintenance.

[0062] In one embodiment, the fastener includes a plurality of hooks and latches 5, which are respectively fixed to the side of the support plate 2 facing the skylight glass 4 and the side of the skylight glass 4 facing the support plate 2. The hooks and latches 5 on the surface of the support plate 2 and the surface of the skylight glass 4 are positioned correspondingly, and the hooks and latches 5 at corresponding positions on the surfaces of the support plate 2 and the skylight glass 4 are interlocked.

[0063] Hooks and latches 5 are provided along the circumferential edges of the support plate 2 and the skylight glass 4, thereby fixing the four edges of the support plate 2 and the skylight glass 4 to each other. The interlocking of the hooks and latches 5 facilitates the disassembly and assembly of the support plate 2 and the skylight glass 4, and ensures a secure installation. This also limits the adhesion between the support plate 2 and the skylight glass 4, and provides sufficient stress to the support plate 2, causing it to arch and bend, better conforming to the surface of the skylight glass 4 and reducing the impact on the cabin's interior height.

[0064] like Figure 3 As shown, in one embodiment, the dimming film 1 located at the hook buckle 5 position on the support plate 2 is recessed in shape to form a groove 7 for the hook buckle 5 to be installed, thereby facilitating the fixing of the hook buckle 5 to the support plate 2.

[0065] During actual installation, after fixing the hooks and latches 5 to the designated positions on the support plate 2 and the panoramic glass 4, the support plate 2 is moved into the car cabin. After positioning, the hooks and latches 5 on the support plate 2 are fastened to the panoramic glass 4 one by one. In this way, during maintenance, the hooks and latches 5 can be disassembled and reassembled one by one. The structure is simple and convenient, and can be reused.

[0066] In one embodiment, the hook and latch 5 is bonded to the support plate 2 and the skylight glass 4 using an adhesive layer. The bonding method allows the hook and latch 5 to be detachably connected to the support plate 2 and the skylight glass 4, thereby facilitating maintenance.

[0067] In one embodiment, an undercoating layer 6 for adhesion enhancement is provided between the adhesive layer and the support plate 2 and between the adhesive layer and the canopy glass 4.

[0068] The base coating 6 increases the surface energy of the skylight glass 4 and the support plate 2, enhancing the adhesion of the hooks and latches 5 and firmly bonding them to the support plate 2 and the skylight glass 4. This prevents the hooks and latches 5 from failing and falling off due to external high temperatures or vehicle vibrations, thus preventing the support plate 2 from detaching. Simultaneously, the base coating 6 makes the hooks and latches 5 adhere more firmly, helping to provide sufficient stress to the support plate 2.

[0069] In one embodiment, the primer liquid of the primer layer 6 includes 3MC100, 3MN210, 3M4298UV, 3MK520, 3M94, Kingstar K-770, and 3MAP111. 3MC100 is preferred.

[0070] During the installation of aftermarket dimming film sunroofs, vehicles are exposed to prolonged high or low temperature environments while driving and parked in open-air parking lots. Traditional mushroom-shaped hook-and-loop fasteners, which rely on their own adhesive layer, are prone to detachment, and vibrations during driving also make them susceptible to falling off. This application preferably uses 3MC100 as a primer, which can significantly improve the adhesion of the mushroom-shaped hook-and-loop fasteners and prevent them from falling off.

[0071] In one embodiment, the hook and loop fastener 5 includes a mushroom-shaped hook and loop fastener.

[0072] like Figure 4 As shown, the mushroom-shaped hook-and-loop fastener not only provides tensile strength in the vertical direction but also has high shear strength in the transverse direction. Therefore, the mushroom-shaped hook-and-loop fastener can effectively shape the support plate 2, allowing the support plate 2 to maintain its arched curvature.

[0073] In this embodiment, 3M's 250-400 mushroom-shaped hook and loop fasteners are selected. When the hook and loop fasteners are fastened together, one of the hook and loop fasteners is oriented along the direction of the hook and loop roll, while the other hook and loop fastener is oriented perpendicular to the direction of the hook and loop roll, so that the two hook and loop fasteners are fastened at a 90° angle, which helps to improve the firmness.

[0074] Taking the mushroom-shaped hook and loop fastener as an example, during installation, first apply a thin layer of primer to the designated areas of the canopy glass 4 and the support plate 2. After it dries, heat the adhesive side of the mushroom-shaped hook and loop fastener and the dried primer side simultaneously with a hair dryer to about 50°C. Then, press the mushroom-shaped hook and loop fastener firmly onto the primer side and wait for the temperature to drop to room temperature, thus firmly bonding the mushroom-shaped hook and loop fastener to the primer side. This makes the installation of the hook and loop fastener 5 reliable and convenient, and only one installer is needed to complete the construction smoothly on site.

[0075] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A smart sunshade for a passenger vehicle, comprising a support plate and a light-adjustable film, the light-adjustable film being arranged on the sun-facing surface of the support plate, characterized in that: The light-adjustable film has transparent powder particles on the side close to the support plate, and the powder particles support the light-adjustable film so that the small gap between the light-adjustable film and the support plate is greater than or equal to a set distance.

2. The passenger vehicle intelligent sunroof screen of claim 1, wherein, The set distance is 5-20 microns.

3. The passenger vehicle intelligent sunroof screen of claim 1, wherein, The average distance between the powder particles is 100-500 microns or the number of powder particles per square millimeter is 5-115.

4. The passenger vehicle intelligent sunroof canopy as claimed in claim 1, wherein, The powder particles are bonded to the side of the light-adjustable film close to the support plate.

5. The passenger vehicle intelligent sunroof canopy as claimed in claim 1, wherein, The powder particles are composed of particles of a single particle size or are a mixture of particles of different particle sizes; the largest particle size is 20 microns and the smallest particle size is 5 microns.

6. The passenger vehicle intelligent sunroof canopy of claim 1, wherein, The side of the support plate away from the sun has a hard coating.

7. A passenger vehicle roof comprising a sunroof glazing and a sunroof blind, characterised in that, The sunshade includes the intelligent sunshade for a passenger vehicle as claimed in any one of claims 1-6, and the intelligent sunshade for a passenger vehicle is arranged on the side of the sunshade glass away from the sun.

8. The passenger vehicle roof of claim 7, wherein, The intelligent sunshade for a passenger vehicle is detachably fixed to the side of the sunshade glass away from the sun by a fixing member.

9. The passenger vehicle roof of claim 8, wherein, The fixing member includes a plurality of hook and loop fasteners, the hook and loop fasteners are respectively fixed to the side of the support plate facing the sunshade glass and the side of the sunshade glass facing the support plate, the positions of the hook and loop fasteners on the surface of the support plate and the surface of the sunshade glass correspond to each other, and the hook and loop fasteners at the corresponding positions on the surface of the support plate and the surface of the sunshade glass are mutually fastened.

10. The passenger vehicle roof of claim 9, wherein, The light-adjustable film at the position of the hook and loop fastener on the support plate is provided with a groove for mounting the hook and loop fastener.

11. The passenger vehicle roof of claim 9, wherein, The hook and loop fasteners are bonded to the support plate and the sunshade glass by an adhesive layer.

12. The passenger vehicle roof of claim 11, wherein, The adhesive layer and the support plate and the adhesive layer and the sunshade glass are both provided with a primer layer for adhesion assistance.

13. The passenger vehicle roof of claim 9, wherein, The hook and loop fastener includes a mushroom hook and loop fastener.

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