Automobile top sunshade curtain
By installing a sunshade on the roof of the car and using solar energy to drive a fan for cooling, the problem of the panoramic sunroof being unable to ventilate is solved, achieving efficient cooling and a comfortable riding experience, and it is easy to install.
Patent Information
- Application Number
- CN202511166166.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-20
- Publication Date
- 2025-10-03
AI Technical Summary
The existing panoramic sunroof cannot be opened, resulting in a lack of ventilation in the car. When the temperature in the summer is high, the temperature inside the car rises, and the existing heat insulation film has limited effect, making it easy for the car seats to burn your buttocks.
A car roof sunshade is designed, which includes sunshade fabric and air-cooling components. The sunshade fabric is composed of a self-adhesive silicone layer, a graphene layer and an inner layer. The upper and lower rings are clamped at the mounting holes. It is equipped with a solar panel, a battery and a fan. The solar panel converts light energy into electricity to drive the fan for cooling. The inner layer can be optionally made of suede or sponge to increase comfort.
The fan can be fully charged within 4-5 hours under standard sunlight conditions and can continue to work for 8-10 hours, actively exhausting hot air and reducing the temperature inside the car. The graphene layer reflects visible light and infrared radiation. The fan does not consume any onboard power and provides cool air. The self-adhesive silicone layer allows for easy installation.
Smart Images

Figure CN120735562A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of automobile supplies and relates to a sunshade curtain on the top of an automobile. Background Art
[0002] A car sunroof, or skylight, installed on the roof, effectively circulates air inside the vehicle, increasing the intake of fresh air. It also broadens the field of vision and increases light levels. With the increasing popularity of electric vehicles, panoramic sunroofs are increasingly common in luxury vehicles. Panoramic sunroofs are large, sometimes consisting entirely of glass, offering a panoramic view of the scenery above. Some panoramic sunroofs are closed and cannot be opened. These sunroofs are essentially a large glass roof. Due to their lack of segmented construction, the light-transmitting area of the roof is also very large. Since they cannot be opened, they cannot provide ventilation. In hot summer weather, sunlight streams directly into the car through the panoramic sunroof. The large area of glass allows for both light and heat absorption, turning the car into a steaming hot zone. To address this, various thermal insulation films have been designed to be applied to the sunroof glass to block UV rays and heat. However, the seats are still relatively high, making it easy to get burned when you first get in, and their effectiveness in cooling the interior is limited. Summary of the Invention
[0003] The purpose of the present invention is to address the above problems in the existing technology and propose a car roof sunshade with a fan installed on the sunshade fabric to improve the sun protection and cooling effects in the car.
[0004] The objectives of the present invention can be achieved through the following technical solutions: A car roof sunshade, comprising a sunshade fabric and an air-cooling component, characterized in that the sunshade fabric comprises a self-adhesive silicone layer, a graphene layer and an inner layer compounded together in sequence from top to bottom, a mounting hole is opened on the sunshade fabric, the air-cooling component comprises an upper ring and a lower ring clamped at the edge of the mounting hole, a solar panel, a battery, a fan and a connecting shell with an open upper end, the lower ring has two axle seats, and the connecting shell has rotating shafts inserted into the axle seats on both sides, the fan is fixed to the outer bottom of the connecting shell, the battery is fixed to the inner bottom of the connecting shell, the solar panel is fixed at the opening of the connecting shell, the solar panel is connected to the battery, and the battery and the fan are connected by a wire.
[0005] The entire car top sunshade is bonded to the car sunroof or the inner surface of the skylight through a self-adhesive silicone layer. The solar panel absorbs light and converts light energy into electrical energy and stores it in the battery, which drives the fan motor.
[0006] Furthermore, the inner layer is suede.
[0007] Furthermore, as another solution, the inner layer is a composite of a sponge layer and suede, and the suede is located outside the sponge layer.
[0008] Furthermore, as another solution, the inner layer is non-woven fabric.
[0009] Furthermore, as another solution, the inner layer is a composite of a sponge layer and a non-woven fabric, and the non-woven fabric is located on the outside of the sponge layer.
[0010] Furthermore, the upper ring has a plurality of circumferentially distributed insertion holes, and the upper end surface of the lower ring has a plurality of circumferentially distributed cylinders, which are tightly inserted into the insertion holes to secure the upper and lower rings to the sunshade fabric. After aligning the upper and lower rings, pressing them together can clamp the sunshade fabric.
[0011] Furthermore, a threaded hole is formed on the upper ring, and a connecting hole is formed on the lower ring. The upper ring and the lower ring are fixed on the sunshade fabric by passing bolts through the connecting holes and the threaded holes.
[0012] Furthermore, a display screen for displaying the battery power and fan gear position is provided on the outside of the connecting shell.
[0013] Furthermore, the outer side of the connection shell is provided with a charging port for connecting to a battery.
[0014] Furthermore, a switch button for controlling the start and stop of the fan and switching gears is provided on the outside of the connecting shell.
[0015] Compared with the existing technology, this car top sunshade has the following advantages: 1. Under standard sunlight conditions (1000W / m²), the battery can be fully charged in 4-5 hours, enough to power the fan for 8-10 hours. The continuous operation of the fan forms a complete self-sustaining cooling ecosystem that can actively expel accumulated hot air from the vehicle and reduce the interior temperature.
[0016] 2. Combined with solar panels to provide power for the fan, the wind blown by the fan can cool the seats when it blows towards them. It can also blow air towards the heads of passengers or drivers to make people feel cool. The fan is completely driven by solar energy, does not consume any onboard electricity, and is energy-saving and environmentally friendly.
[0017] 3. A graphene layer is installed in the sunshade fabric, which reflects more than 90% of visible light and infrared radiation, thereby reducing the heat energy generated by sunlight entering the car.
[0018] 4. Set a self-adhesive silicone layer on the sunshade fabric. The self-adhesive silicone layer is sticky and easy to install and disassemble. Press the entire sunshade fabric on the skylight glass to make the self-adhesive silicone layer fit with the skylight glass to complete the installation. No silicone will remain on the skylight glass. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a partial cross-sectional view of the sunshade on the top of the car.
[0020] Figure 2 It is a structural diagram of the air cooling component.
[0021] Figure 3 It is a schematic cross-sectional view of the sunshade fabric of Example 1.
[0022] Figure 4 It is a schematic cross-sectional view of the sunshade fabric of the second embodiment.
[0023] In the figure, 1. sunshade fabric; 11. self-adhesive silicone layer; 12. graphene layer; 13. suede; 14. sponge layer; 15. mounting hole; 2. upper ring; 3. lower ring; 31. shaft seat; 4. solar panel; 5. battery; 6. fan; 7. connecting shell; 71. shaft; 8. display; 9. charging port; 10. switch button. DETAILED DESCRIPTION
[0024] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solutions of the present invention, but the present invention is not limited to these embodiments. Example 1
[0025] like Figure 1 、 Figure 2 As shown, the sunshade on the top of the car includes a sunshade fabric 1 and an air-cooling component. The sunshade fabric 1 includes a self-adhesive silicone layer 11, a graphene layer 12 and an inner layer compounded together from top to bottom. A mounting hole 15 is opened on the sunshade fabric 1. The air-cooling component includes an upper ring 2 and a lower ring 3 clamped on the edge of the mounting hole 15, a solar panel 4, a battery 5, a fan 6 and a connecting shell 7 with an upper opening. The lower ring 3 has two shaft seats 31, and the connecting shell 7 has a rotating shaft 71 inserted into the shaft seat 31 on both sides. The fan 6 is fixed to the outer bottom of the connecting shell 7, the battery 5 is fixed to the inner bottom of the connecting shell 7, and the solar panel 4 is fixed at the opening of the connecting shell 7. The solar panel 4 is connected to the battery 5 and can charge the battery 5. The battery 5 and the fan 6 are connected by a wire.
[0026] like Figure 3 As shown, the inner layer is suede 13. Suede 13 is wear-resistant, wrinkle-resistant and waterproof.
[0027] The upper ring 2 is provided with a plurality of circumferentially distributed insertion holes, and the upper end surface of the lower ring 3 has a plurality of circumferentially distributed cylinders, which are tightly inserted into the insertion holes to secure the upper ring 2 and the lower ring 3 to the sunshade fabric 1. After aligning the upper ring 2 and the lower ring 3, pressing them together can clamp the sunshade fabric 1.
[0028] The outer side of the connecting shell 7 has a display screen 8 that displays the battery 5 power level and the fan 6 gear position, a charging port 9 for connecting to the battery 5, and a switch button 10 for controlling the start and stop of the fan 6 and switching the gear position. The battery 5 can also be charged by an external power source through the charging port 9. Pressing the switch button 10 can switch the gear position of the fan 6 and adjust the fan blade speed.
[0029] Instructions for Use: The entire car roof sunshade is bonded to the inside of the car's sunroof or canopy using a self-adhesive silicone layer 11. The graphene layer 12 reflects most visible light and infrared radiation, thereby reducing the heat generated by sunlight entering the vehicle interior. The solar panel 4 faces upward and is lower than the sunshade fabric 1. After absorbing sunlight, the solar panel 4 converts the energy into electricity, which is stored in a battery 5. This battery 5 drives the motor of the fan 6. When the car is parked and the engine is turned off, the temperature inside the car rises due to sunlight. At this time, a control button can be pressed to turn on the fan 6. The air blown by the fan 6 cools the seats, providing continuous cooling while the car is parked. This is especially true in the summer when the sun is strong and the seats are hot. This airflow allows passengers or the driver to sit in the seats without burning their buttocks. While the car is driving, the fan 6 can also be turned on to blow air over the heads of passengers or the driver to provide a cool feeling. Since the fan 6 is powered entirely by solar energy, it does not consume any onboard power, thus saving energy and protecting the environment. Example 2
[0030] like Figure 4 As shown, the inner layer is composed of a sponge layer 14 and suede 13, and the suede 13 is located outside the sponge layer 14. The sponge layer 14 makes the entire car top sunshade have a certain elasticity and increases the comfort of the hand.
[0031] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope of the appended claims.
Claims
1. A car roof sunshade, comprising a sunshade fabric (1) and an air-cooling component, characterized in that: The sunshade fabric (1) comprises a self-adhesive silicone layer (11), a graphene layer (12) and an inner layer which are sequentially compounded from top to bottom. A mounting hole (15) is provided on the sunshade fabric (1). The air cooling assembly comprises an upper ring (2) and a lower ring (3) clamped at the edge of the mounting hole (15), a solar panel (4), a battery (5), a fan (6) and a connecting shell (7) with an upper opening. The lower ring (3) has two shaft seats (31). Both sides of the connecting shell (7) have rotating shafts (71) inserted into the shaft seats (31). The fan (6) is fixed to the outer bottom of the connecting shell (7), the battery (5) is fixed to the inner bottom of the connecting shell (7), the solar panel (4) is fixed to the opening of the connecting shell (7), the solar panel (4) is connected to the battery (5), and the battery (5) is connected to the fan (6) via a wire.
2. The car roof sunshade according to claim 1, characterized in that: The inner layer is suede (13).
3. The car roof sunshade according to claim 1, characterized in that: The inner layer is a composite of a sponge layer (14) and suede (13), and the suede (13) is located outside the sponge layer (14).
4. The car roof sunshade according to claim 1, characterized in that: The inner layer is non-woven fabric.
5. The car roof sunshade according to claim 1, characterized in that: The inner layer is a composite of a sponge layer (14) and a non-woven fabric, and the non-woven fabric is located outside the sponge layer (14).
6. A car roof sunshade according to claim 1 or 2 or 3 or 4 or 5, characterized in that: The upper ring (2) is provided with a plurality of circumferentially distributed insertion holes, and the upper end surface of the lower ring (3) is provided with a plurality of circumferentially distributed cylinders, which are tightly inserted into the insertion holes so that the upper ring (2) and the lower ring (3) are snap-fastened and fixed to the sunshade fabric (1).
7. A car roof sunshade according to claim 1 or 2 or 3 or 4 or 5, characterized in that: The upper ring (2) is provided with a threaded hole, and the lower ring (3) is provided with a connecting hole. The upper ring (2) and the lower ring (3) are fixed to the sunshade fabric (1) by means of bolts passing through the connecting holes and the threaded holes.
8. The automobile roof sunshade according to claim 6, characterized in that: The outer side of the connecting shell (7) is provided with a display screen (8) for displaying the battery (5) power level and the fan (6) gear position.
9. The automobile roof sunshade according to claim 8, characterized in that: The outer side of the connection shell (7) is provided with a charging port (9) for connecting to the battery (5).
10. The automobile roof sunshade according to claim 9, characterized in that: A switch button (10) for controlling the start and stop of the fan (6) and switching gears is provided on the outside of the connecting shell (7).