Vehicle skylight sunshade curtain structure

By using electrochromic materials and a multi-layer structure design, and by using a DC electric field to excite the electrochromic film, the problem of the car sunroof sunshade being unable to automatically adjust its light transmittance has been solved. This allows the sunshade to automatically change between transparent and blurred states, effectively blocking harmful light rays.

CN223919088UActive Publication Date: 2026-02-17ANHUI ANJIAN AUTO SKYLIGHT TECH CO LTD LUAN CITY
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202520753178.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-21
Publication Date
2026-02-17
Estimated Expiration
2035-04-21

AI Technical Summary

Technical Problem

Existing car sunroof sunshades cannot automatically adjust light transmittance and cannot effectively block harmful light rays, and conventional glass cannot change color to alter light transmittance.

Method used

Employing electrochromic materials and a multi-layered structure, the electrochromic film is excited by a DC electric field to decompose or polymerize, and combined with a polarizing film, it achieves changes in transparency or blurriness, blocking harmful light.

Benefits of technology

It achieves automatic light transmittance control for skylight sunshades, effectively blocking harmful light rays. It has a simple structure and significant market application value.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223919088U_ABST
    Figure CN223919088U_ABST
Patent Text Reader

Abstract

The utility model provides a vehicle skylight sunshade curtain structure which comprises electrochromism sunshade glass, electrochromism direct-current electric field generators are connected to the two ends of the electrochromism sunshade glass, glass insulation protection clamping sleeves are arranged on the peripheral sides of the electrochromism sunshade glass and the electrochromism direct-current electric field generators in a wrapping mode, and the glass insulation protection clamping sleeves are arranged on the peripheral sides of the electrochromism sunshade glass and the electrochromism direct-current electric field generators in a wrapping mode. A plurality of photochromic sensing sensors which are in direct contact with the electrochromic sunshade glass are arranged on the glass insulation protection clamping sleeve; the electrochromic sunshade glass internally comprises an electrochromic film plate arranged at the middle layer; according to the sunshade curtain structure, the electrochromic material is excited by a direct-current electric field to be decomposed or polymerized, then the electrochromic film becomes transparent or fuzzy, the whole skylight becomes transparent or fuzzy, sunshading of the skylight is achieved, the polarizing film is attached to the glass, certain light rays harmful to the human body are blocked outside the skylight glass, and through the multi-layer structural design, the sunshading curtain structure is more attractive and elegant. The sunshade curtain is simple and clear in structure and has remarkable technical innovation compared with a conventional sunshade curtain.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the technical field of sunroof components, specifically to a sunroof sunshade structure for vehicles. Background Technology

[0002] A sunroof sunshade assembly is a mechanism used in automobiles to shield passengers near the sunroof from sunlight entering through the sunroof glass. Especially with the increasing adoption of panoramic sunroofs in more and more cars, sunlight can directly penetrate the entire interior of the vehicle, causing discomfort to passengers, especially in sunny weather. In this case, the application of a sunroof sunshade assembly is essential.

[0003] Conventional sunshades use roller blinds to completely block sunlight. However, car interiors still require some sunlight for lighting and even ventilation. This necessitates the use of glass with a certain degree of light transmission instead of roller blinds. However, conventional glass cannot automatically change color to alter its light transmission and achieve a sunshade effect. Therefore, there is an urgent need to design a color-changing glass that can achieve both light transmission and sun shading. Utility Model Content

[0004] This invention addresses the shortcomings of existing technologies by providing a sunroof sunshade structure for vehicles. The sunshade structure uses a direct current electric field to excite electrochromic materials, causing them to decompose or polymerize, resulting in the electrochromic film becoming transparent or blurred, thus making the sunroof as a whole transparent or blurred, achieving sunshade. A polarizing film is attached to the glass to block certain harmful rays from entering the sunroof. Through a multi-layered structure, the design is simple and clear. The sunshade is installed within the sunroof glass, and its light transmittance is controlled by changes in the electric field intensity. Compared to conventional sunshades, this design represents a significant technological innovation and has substantial market application value.

[0005] To achieve the objective of this utility model, the technical solution adopted is as follows:

[0006] A sunroof sunshade structure for vehicles includes an electrochromic sunshade glass. Electrochromic DC electric field generators are connected to both ends of the electrochromic sunshade glass. Glass insulating protective sleeves are wrapped around the outer periphery of both the electrochromic sunshade glass and the electrochromic DC electric field generators. Several light-sensitive sensors that are in direct contact with the electrochromic sunshade glass are installed on the glass insulating protective sleeves. The electrochromic sunshade glass includes an electrochromic film plate in the middle layer. Color-changing protective films are wrapped around both sides of the electrochromic film plate. Sunroof transparent glass plates are installed on the upper side of the upper color-changing protective film plate and the lower side of the lower color-changing protective film plate.

[0007] As a preferred technical solution, a skylight glass polarizing plate is installed on the upper side of the upper skylight transparent glass panel and the lower side of the lower skylight transparent glass panel, and a skylight glass protective film is installed on the upper side of the upper skylight glass polarizing plate and the lower side of the lower skylight glass polarizing plate.

[0008] As a preferred technical solution, an electrically insulating protective membrane is connected to both ends of the electrochromic film, the electrochromic film protective film, the skylight transparent glass plate, the skylight glass polarizing plate, and the skylight glass protective film, and an electrochromic DC electric field excitation head electrically connected to the electrochromic film is installed in the middle of the electrically insulating protective membrane.

[0009] As a preferred technical solution, a DC electric field excitation plate is wrapped around the outer end of the electrochromic DC electric field excitation head and the electrically insulating protective diaphragm. The DC electric field excitation plate is directly electrically connected to the electrochromic DC electric field generator and the electrochromic DC electric field excitation head.

[0010] As a preferred technical solution, the glass insulation protection sleeve is installed on the skylight sunshade installation frame, and DC electric field power supply is installed at both ends of the skylight sunshade installation frame. The DC electric field power supply is directly electrically connected to the electrochromic DC electric field generator.

[0011] As a preferred technical solution, the thickness of the transparent glass panel of the sunroof is greater than or equal to the thickness of the electrochromic film, and the thickness of the electrochromic film is greater than or equal to the thickness of the polarizing plate of the sunroof glass.

[0012] As a preferred technical solution, the thickness of the sunroof glass polarizing plate is greater than or equal to the thickness of the sunroof glass protective film, and the thickness of the sunroof glass protective film is greater than or equal to the thickness of the photochromic film protective film.

[0013] This utility model provides a sunroof sunshade structure for vehicles, which has the following advantages:

[0014] This invention's sunshade structure uses a DC electric field to excite electrochromic materials to decompose or polymerize, causing the electrochromic film to become transparent or blurred, thus making the entire skylight transparent or blurred and achieving sunshade. A polarizing film is attached to the glass to block certain harmful rays from the skylight. Through a multi-layered structural design, the structure is simple and clear. The sunshade is installed inside the skylight glass, and the light transmittance of the sunshade is controlled by changes in the electric field intensity. Compared with conventional sunshade structures, this invention has significant technological innovation and market application value. Attached Figure Description

[0015] Figure 1 This is a top view schematic diagram of the sunroof sunshade structure of this utility model.

[0016] Figure 2This is a schematic diagram of the electrochromic sunshade glass structure of the vehicle sunroof sunshade curtain structure of this utility model.

[0017] In the diagram: 1. Electrochromic sunshade glass; 2. Sunroof sunshade installation frame; 3. Glass insulation protection sleeve; 4. Electrochromic DC electric field generator; 5. DC electric field power supply; 6. Light-sensitive sensor; 7. DC electric field excitation plate; 8. Electrochromic DC electric field excitation head; 9. Electrochromic film; 10. Protective film for the electrochromic film; 11. Sunroof transparent glass plate; 12. Sunroof glass polarizing plate; 13. Sunroof glass protective film; 14. Electrically insulating protective membrane. Detailed Implementation

[0018] The present invention will be further described and illustrated below with reference to specific embodiments and accompanying drawings.

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0020] In the description of this utility model, it should be understood that the terms "upper", "lower", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Example 1

[0021] like Figure 1 As shown, a vehicle sunroof sunshade structure includes an electrochromic sunshade glass 1. Electrochromic DC electric field generators 4 are connected to both ends of the electrochromic sunshade glass 1. Glass insulating protective sleeves 3 are wrapped around the outer periphery of both the electrochromic sunshade glass 1 and the electrochromic DC electric field generators 4. Several light-changing sensing sensors 6, which are in direct contact with the electrochromic sunshade glass 1, are installed on the glass insulating protective sleeves 3. The glass insulating protective sleeves 3 are mounted on a sunroof sunshade mounting frame 2. DC electric field power supplies 5 are installed at both ends of the sunroof sunshade mounting frame 2 and are directly electrically connected to the electrochromic DC electric field generators 4.

[0022] like Figure 2As shown, a sunroof sunshade structure for a vehicle includes an electrochromic sunshade glass 1 with an electrochromic film 9 disposed in the middle layer. Electrochromic film 9 is wrapped with protective films 10 on both sides. A transparent sunroof glass panel 11 is installed on the upper side of the upper protective film 10 and the lower side of the lower protective film 10. A sunroof glass polarizing plate 12 is installed on the upper side of the upper transparent sunroof glass panel 11 and the lower side of the lower transparent sunroof glass panel 11. A sunroof glass protective film 13 is installed on the upper side of the upper polarizing plate 12 and the lower side of the lower polarizing plate 12.

[0023] like Figure 2 As shown, a sunroof sunshade structure for a vehicle includes an electrochromic film 9, an electrochromic film protective film 10, a sunroof transparent glass panel 11, a sunroof glass polarizing plate 12, and a sunroof glass protective film 13. Electrically insulating protective membranes 14 are connected to both ends of these components. An electrochromic DC electric field excitation head 8, electrically connected to the electrochromic film 9, is installed in the middle of the electrically insulating protective membrane 14. A DC electric field excitation plate 7 is wrapped around the outer ends of the electrochromic DC electric field excitation head 8 and the electrically insulating protective membrane 14. The DC electric field excitation plate 7 is directly electrically connected to an electrochromic DC electric field generator 4 and the electrochromic DC electric field excitation head 8.

[0024] Furthermore, the thickness of the transparent glass plate 11 of the sunroof is greater than or equal to the thickness of the electrochromic film plate 9, the thickness of the electrochromic film plate 9 is greater than or equal to the thickness of the polarizing plate 12 of the sunroof glass, the thickness of the polarizing plate 12 of the sunroof glass is greater than or equal to the thickness of the protective film 13 of the sunroof glass, and the thickness of the protective film 13 of the sunroof glass is greater than or equal to the thickness of the protective film 10 of the color-changing film plate.

[0025] During operation, the electrochromic DC electric field generators 4, installed at both ends of the electrochromic sunshade glass 1, are activated. The DC electric field power supply 5 provides power to the electrochromic DC electric field generators 4. The electrochromic DC electric field generators 4 control the DC electric field excitation plate 7 to operate. The electrochromic DC electric field excitation head 8 at the front end of the DC electric field excitation plate 7 excites the DC electric field. The DC electric field controls the decomposition or polymerization of the electrochromic material in the electrochromic film 9, causing the electrochromic film 9 to become transparent or blurred (depending on the properties of the electrochromic material in the electrochromic film 9, forming...). Four scenarios: 1. The electrochromic material decomposes under the action of an electric field, causing the electrochromic film 9 to change from blurry to transparent; 2. The electrochromic material decomposes under the action of an electric field, causing the electrochromic film 9 to change from transparent to blurry; 3. The electrochromic material polymerizes under the action of an electric field, causing the electrochromic film 9 to change from blurry to transparent; 4. The electrochromic material polymerizes under the action of an electric field, causing the electrochromic film 9 to change from transparent to blurry. The degree of transparency or blurriness is controlled by the strength of the electric field. The light transmittance of the electrochromic sunshade glass 1 is monitored in real time by the light-sensitive sensor 6 and fed back to the control system to adjust the electric field strength.

[0026] The protective films 10 on both sides of the electrochromic film 9 effectively isolate the electric field and protect the electrochromic film 9 from damage by other materials. The sunroof glass polarizing plate 12 adjusts the light entering the electrochromic sunshade glass 1 when there is no electric field, ensuring that the light intensity entering the electrochromic sunshade glass 1 can also be adjusted when there is no electric field. The sunroof glass protective film 13 can protect the electrochromic sunshade glass 1 from damage by external forces. Example 2

[0027] The difference between this embodiment and Embodiment 1 is that:

[0028] like Figure 1 As shown, a vehicle sunroof sunshade structure replaces the electrochromic film 9 and the entire electrochromic system in the electrochromic sunshade glass 1 with a thermochromic film and thermochromic system. By heating the thermochromic film, the thermochromic material in it becomes transparent or blurry. Heat insulation is achieved through the color-changing film protective film 10, the sunroof transparent glass 11, the sunroof glass polarizing plate 12, and the sunroof glass protective film 13 to protect human safety. Example 3

[0029] The difference between this embodiment and embodiments 1 and 2 is that:

[0030] like Figure 1As shown, a vehicle sunroof sunshade structure replaces the electrochromic film 9 and the entire electrochromic system in the electrochromic sunshade glass 1 with a photochromic film. The photochromic film is adjusted to become transparent or blurred by solar energy shining on it, and the intensity of light entering the photochromic film is adjusted by the sunroof glass polarizing plate 12.

[0031] In this invention, the sunshade structure uses a DC electric field to excite the electrochromic material to decompose or polymerize, thereby causing the electrochromic film to become transparent or blurred, making the entire skylight transparent or blurred, thus achieving sunshade. A polarizing film is attached to the glass to block certain harmful rays from the skylight. Through a multi-layered structural design, the structure is simple and clear. The sunshade is installed inside the skylight glass, and the light transmittance of the sunshade is controlled by changes in the electric field intensity. Compared with conventional sunshade, this invention has significant technological innovation and market application value.

[0032] The technical solutions disclosed in the embodiments of this utility model have been described in detail above. Specific embodiments have been used to illustrate the principles and implementation methods of the embodiments of this utility model. The descriptions of the embodiments above are only for helping to understand the principles of the embodiments of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the embodiments of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A vehicle sunroof shade structure, characterized by: The utility model provides an electrically variable sunshade glass (1), the both ends of the electrically variable sunshade glass (1) are connected with an electrically variable direct current electric field generator (4), the outer circumferential side of the electrically variable sunshade glass (1) and the electrically variable direct current electric field generator (4) are wrapped with a glass insulation protection sleeve (3), and a plurality of light variable sensing sensors (6) are installed on the glass insulation protection sleeve (3) and directly contact the electrically variable sunshade glass (1). The electrically variable sunshade glass (1) comprises an electrically variable film plate (9) arranged in the middle layer, and a variable film plate protection film (10) is arranged on both sides of the electrically variable film plate (9); the upper side of the upper variable film plate protection film (10) and the lower side of the lower variable film plate protection film (10) are both provided with a sunroof transparent glass plate (11).

2. The vehicle sunroof shade structure of claim 1, wherein: The upper side of the upper sunroof transparent glass plate (11) and the lower side of the lower sunroof transparent glass plate (11) are both provided with a sunroof glass polarizing plate (12), and the upper side of the upper sunroof glass polarizing plate (12) and the lower side of the lower sunroof glass polarizing plate (12) are both provided with a sunroof glass protection film (13).

3. The vehicle sunroof shade structure of claim 2, wherein: The electrically variable film plate (9), the variable film plate protection film (10), the sunroof transparent glass plate (11), the sunroof glass polarizing plate (12) and the sunroof glass protection film (13) are connected with an electrically variable direct current electric field excitation head (8) arranged in the middle of the electrically variable film plate (9).

4. The vehicle sunroof shade structure of claim 3, wherein: The electrically variable direct current electric field excitation head (8) and the electrically variable direct current electric field generator (4) are directly connected with a direct current electric field excitation plate (7) wrapped on the outer end of the electrically variable direct current electric field excitation head (8) and the electrically variable direct current electric field generator (4).

5. The vehicle sunroof shade structure of claim 1, wherein: The glass insulation protection sleeve (3) is installed on a sunroof sunshade curtain mounting frame (2), and a direct current electric field power supply (5) is installed on both ends of the sunroof sunshade curtain mounting frame (2); the direct current electric field power supply (5) is directly connected with the electrically variable direct current electric field generator (4).

6. The vehicle sunroof shade structure of claim 3, wherein: The thickness of the sunroof transparent glass plate (11) is greater than or equal to the thickness of the electrically variable film plate (9), and the thickness of the electrically variable film plate (9) is greater than or equal to the thickness of the sunroof glass polarizing plate (12).

7. The vehicle sunroof shade structure of claim 3, wherein: The thickness of the sunroof glass polarizing plate (12) is greater than or equal to the thickness of the sunroof glass protection film (13), and the thickness of the sunroof glass protection film (13) is greater than or equal to the thickness of the variable film plate protection film (10).