A car window electric sunshade curtain with sliding rail and car

Abstract

The application relates to the technical field of car window sunshade curtains, in particular to a car window electric sunshade curtain with sliding rails and a car, wherein a sunshade curtain reel is installed at the top edge position of a window frame; a sunshade curtain driving assembly comprises an output gear, the output gear is matched with a front winding reel gear and a rear winding reel gear respectively, so that the front winding reel and the rear winding reel can rotate; a sliding rail structure comprises front sliding rails and rear sliding rails arranged at the two side edges of the window frame; the top ends of the front sliding rails and the rear sliding rails are provided with fixed pulleys, a pull line is arranged between the two groups of fixed pulleys and the corresponding front winding reel and rear winding reel, a sliding block is arranged on each group of pull lines, the two groups of sliding blocks are matched with the corresponding sliding rails and are connected with the end portions of sunshade curtain fabrics; through the arrangement of the front sliding rails and the rear sliding rails and the driving of the sunshade curtain fabrics by the sliding blocks to expand and retract the sunshade curtain fabrics, the car window area can be completely covered, thus the problem that the existing curtain fabrics cannot completely cover the side window and cannot meet the full light shielding demand of the user on the car window can be solved.

Description

Technical Field

[0001] This invention relates to the field of vehicle window sunshade technology, and in particular to an electric vehicle window sunshade with sliding rails and an automobile. Background Technology

[0002] Some mid-to-high-end cars are typically equipped with sunshades to provide passengers with a comfortable riding environment, reduce visual interference and heat buildup caused by direct sunlight, and ensure privacy. MPVs are generally hatchback models, so their overall interior space is spacious, requiring larger side windows to allow for ample sunlight. However, current sunshades are limited by the type of window frame sheet metal, mostly only covering the main part of the side window. When applied to MPVs, the upper, widest area of ​​the side window cannot be completely covered, negatively impacting user privacy and sunshade experience, requiring further improvement.

[0003] In existing technologies, some car window sunshades include a sunshade roller located at the bottom of the window frame inside the vehicle. The roller has a pull tab; pulling the tab pulls the curtain out of the roller. A hook is located at the top center of the window frame; after the curtain is pulled out using the pull tab, the pull tab engages with the hook to secure the curtain. However, this type of sunshade is unsuitable for MPVs because the width of the side windows varies at different heights in MPVs, meaning the widest area at the top of the side window cannot be completely covered, allowing light to still enter the vehicle through the un-curtained side window area. Existing technologies also use a drive mechanism to raise and lower a support rod, which in turn raises and lowers the curtain. This method also fails to provide complete coverage of the side window and cannot meet the user's need for complete light blocking from the car window. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this invention is to provide an electric sunshade curtain for car windows with sliding rails and a car, which can achieve 100% complete coverage of the car window area. This solves the problem that existing curtains cannot completely cover the side windows and cannot meet the user's need for complete light blocking from the car windows.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution: Firstly, a motorized sunshade for vehicle windows with sliding rails includes: The sunshade roller is installed at the top edge of the window frame; The sunshade drive assembly includes an output gear, which engages with the front winding disc gear and the rear winding disc gear respectively to achieve rotation of the front winding disc and the rear winding disc; The sliding rail structure includes a front sliding rail and a rear sliding rail located on both sides of the window frame; fixed pulleys are provided at the top of the front and rear sliding rails, and pull lines are provided between the two sets of fixed pulleys and the corresponding front and rear winding reels. Each pull line is equipped with a slider, and the two sets of sliders cooperate with the corresponding sliding rails and are connected to the ends of the sunshade curtain; the output gear drives the front and rear winding reels to rotate, so that the two sets of sliders on the pull lines drive the sunshade curtain to rise and fall.

[0006] As a further implementation, the top ends of the front and rear slide rails are located near the front and rear ends of the sunshade roller, and the slider connects the front and rear ends of the side of the sunshade curtain that is pulled out.

[0007] As a further implementation, the sunshade drive assembly includes a motor, with a worm gear at the output end. The worm gear cooperates with a worm wheel, and the worm wheel is coaxially arranged with the output gear and rotates synchronously. The motor drives the front winding disc gear and the rear winding disc gear to rotate through the worm gear mechanism.

[0008] As a further implementation, the front winding disc gear is provided with a front winding disc, and the rear winding disc gear is provided with a rear winding disc; the winding disc is provided with a spiral groove.

[0009] As a further implementation, the rear slide rail is provided with a rear fixed pulley at the top, and a rear pull line is provided between the rear fixed pulley and the rear winding reel, with a rear slider on the rear pull line; the front slide rail is provided with a front fixed pulley at the top, and a front pull line is provided between the front fixed pulley and the front winding reel, with a front slider on the front pull line; the slider is located on the pull line on one side of the two sets of fixed pulleys that are close to each other.

[0010] As a further implementation, the slide rail is equipped with a mechanical limit switch, which can be triggered when the slider slides to a designated position within the slide rail.

[0011] As a further implementation, one end of each set of pull wires is fixedly connected to one end of the slider, and the other end is fixedly connected to the other end of the slider after passing over the winding disc and pulley.

[0012] As a further implementation, the front slide rail and the rear slide rail are arranged with openings close to each other on one side.

[0013] As a further implementation, the sunshade curtain fabric is made of a flexible material.

[0014] Secondly, a type of automobile equipped with an electric sunshade with sliding rails, as described in any of the preceding descriptions.

[0015] The beneficial effects of the present invention are as follows: 1. This invention places the front and rear sliding rails inside the window frame trim panels on the left and right sides of the car's side windows, and uses sliders to open and close the sunshade curtain, resulting in a larger coverage area. By coordinating with the upper trim panel of the door panel, it can achieve 100% complete coverage of the window area, thereby solving the problem that existing curtains cannot completely cover the side windows and cannot meet users' needs for complete light blocking from the car windows.

[0016] 2. In the present invention, the front and rear slide rails are equipped with a slider in the channel. According to the position of the slider when the sunshade curtain is raised or lowered to the corresponding position, a mechanical limit switch is provided. When the slider slides to the designated position in the slide rail, the mechanical limit switch is triggered, and then the motor stops.

[0017] 3. The sunshade curtain of the present invention is made of flexible material. When the front and rear sliders are raised and lowered synchronously to different heights, the sunshade curtain is stretched to different degrees, thereby achieving full coverage of the side windows of MPV vehicles. Attached Figure Description

[0018] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0019] Figure 1 This is a schematic diagram of the electric sunshade curtain with sliding rails in an embodiment of the present invention; Figure 2 This is a schematic diagram of the sunshade drive assembly structure in an embodiment of the present invention; Figure 3 This is a schematic diagram of the cross-sectional structure of the rear slide rail in an embodiment of the present invention; Figure 4 This is a schematic diagram of the overall structure of the electric sunshade curtain with sliding rails in an embodiment of the present invention; Figure 5 This is a partial structural diagram of an electric sunshade curtain with sliding rails in an embodiment of the present invention; Figure 6 This is a schematic diagram of the structure of the slider and the pull wire in an embodiment of the present invention.

[0020] The diagram exaggerates the spacing or dimensions between parts to show their positions; the diagram is for illustrative purposes only.

[0021] The components include: 1. Shade curtain drive assembly; 11. Motor; 12. Worm gear; 13. Worm wheel; 14. Output gear; 15. Rear winding disc gear; 16. Front winding disc gear; 17. Rear winding disc; 18. Front winding disc; 2. Shade curtain fabric; 3. Rear slide rail; 31. Rear slider; 32. Rear fixed pulley; 4. Front slide rail; 41. Front slider; 42. Front fixed pulley; 5. Shade curtain roller; 6. Spiral steel belt; 19. Pull cord; 191. First pull cord; 192. Second pull cord; 193. Third pull cord; 194. Fourth pull cord. Detailed Implementation

[0022] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the invention. Unless otherwise specified, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0023] Example 1 In a typical embodiment of the present invention, reference is made to Figures 1-6 As shown, an electric sunshade for vehicle windows with a sliding rail includes a sunshade drive assembly 1, a sunshade roller 5, a sliding rail structure, and a sunshade curtain 2. Two sets of sliders slide within each other, and the two sets of sliders rise and fall simultaneously, causing the sunshade curtain 2 on the sunshade roller 5 to unfold or retract.

[0024] like Figure 1 As shown, the sunshade roller 5 is installed at the top edge of the window frame, and the sunshade curtain 2 is installed inside it. The sunshade curtain 2 can be unfolded downwards to block the side window.

[0025] The sunshade curtain drive assembly 1 and the slide rail structure are equipped with pull wires 19. The slide rail includes a front slide rail 4 and a rear slide rail 3, so two sets of pull wires are set accordingly. The pull wires 19 are equipped with sliders. The sliders slide in the slide rail and drive the sunshade curtain fabric 2 to open or close.

[0026] like Figure 2 As shown, the sunshade drive assembly includes a motor 11, whose output end is equipped with a worm gear 12. The worm gear 12 cooperates with a worm wheel 13. The worm wheel 13 and the output gear 14 are coaxially arranged and rotate synchronously via a support shaft. The worm wheel 13 and the output gear 14 are relatively fixed. The worm gear 12 drives the worm wheel 13 to rotate, thereby enabling the output gear 14 to rotate. The motor 11 and the support shaft are arranged on a support base, which is located in the installation space below the door window frame.

[0027] The support base is also equipped with a rear winding disc gear 15 and a front winding disc gear 16 via two other sets of support shafts. The rear winding disc gear 15 has a rear winding disc 17 on the side away from the support base, and the front winding disc gear 16 has a front winding disc 18 on the side away from the support base.

[0028] The output gear 14 meshes with the rear winding disc gear 15 and the front winding disc gear 16 respectively. The worm 12 and the worm wheel 13 form a worm gear mechanism. The motor 11 drives the front winding disc gear 16 and the rear winding disc gear 15 to rotate through the worm gear mechanism, thereby realizing that the rear winding disc 17 and the front winding disc 18 rotate in the same direction. The winding disc is provided with a helical groove for drawing the wire 19 for helical winding.

[0029] according to Figure 1 In the view direction, the sliding rail structure includes a front sliding rail 4 and a rear sliding rail 3 located on both sides of the window frame. The front sliding rail 4 is located on the right side of the window frame, and the rear sliding rail 3 is located on the left side of the window frame.

[0030] Both the front slide rail 4 and the rear slide rail 3 are provided with two channels, and fixed pulleys are provided at the top of the channels respectively, namely the front fixed pulley 42 on the front slide rail 4 and the rear fixed pulley 32 on the rear slide rail 3.

[0031] Slider blocks are provided in two adjacent channels on the front slide rail and the rear slide rail, namely the rear slider 31 on the rear slide rail 3 and the front slider 41 on the front slide rail 4.

[0032] Two sets of fixed pulleys are provided with pull wires between the two sets of fixed pulleys and the corresponding front winding reel 16 and rear winding reel 17. The upper and lower ends of the slider are provided with snap-fit ​​grooves that are fixedly connected to the ends of the pull wires 19 to fix the ends of the pull wires.

[0033] Specifically, such as Figure 5 and Figure 6 As shown, the pull wire 19 on the rear winding reel 17 serves as the rear pull wire. According to the direction of the wire exit and its different positions, it is represented as the first pull wire 191 and the second pull wire 192. After the first pull wire 191 is wound in the spiral groove on the rear winding reel 17, the wire exits as the second pull wire 192. The second pull wire enters a channel of the rear slide rail 3 near the side window and is fixed to the rear slider 31. The end of the first pull wire 191 away from the rear winding reel enters another channel and passes around the rear fixed pulley and is fixed to the upper end of the rear slider 31.

[0034] A set of pull wires 19 on the front winding reel 18 serves as the front pull wires. According to their exit direction and different positions, they are designated as the third pull wire 193 and the fourth pull wire 194. After the fourth pull wire 194 is wound into the spiral groove on the front winding reel, its exit becomes the third pull wire 193. The third pull wire 193 enters a channel of the front slide rail 4 near the side window and is locked in place at the lower end of the front slider. The end of the fourth pull wire 194 away from the front winding reel enters another channel of the front slide rail and passes around the front fixed pulley, securing it to the upper end of the front slider 41. With this arrangement, the front slider 41 and the rear slider 31 are slidably mounted in the channels of the front slide rail 4 and the rear slide rail 3 that are close to each other.

[0035] like Figure 3As shown, the front slide rail 4 and the rear slide rail 3 have openings on the side of the channel close to each other, near the side window. The upper and lower ends of the sliders are used to fix the pull wire 19, and the two sliders are used to fix the sunshade curtain 2 on the side close to each other. By opening the corresponding channel, the sliders can smoothly drive the sunshade curtain 2 to rise and fall. It can be understood that the left and right sides of the sunshade curtain 2 enter the opening side of the channel.

[0036] It is understandable that the two sets of sliders are positioned at the front and rear ends of the side where the sunshade curtain 2 is pulled out, such as... Figure 2 and Figure 4 As shown, the motor 11 drives the output gear to rotate clockwise, which enables the two sets of winding discs to rotate clockwise. The sliders on the pull wires 192 and 193 can move downwards, thus pulling the sunshade curtain 2 downwards. Conversely, it pulls the sunshade curtain 2 upwards, and the sunshade curtain roller 5 retracts the sunshade curtain 2.

[0037] like Figure 1 As shown, the tops of the front slide rail 4 and the rear slide rail 3 are located near the front and rear ends of the sunshade roller 5, and the structure is reasonably arranged.

[0038] It is understandable that the front and rear slide rails are in the channel with sliders. According to the position of the slider when the sunshade curtain 2 is raised and lowered to the corresponding position, there is a corresponding mechanical limit switch. When the slider slides to the designated position in the slide rail, the mechanical limit switch can be triggered, and then the motor stops.

[0039] When the slider moves downwards, triggering the mechanical limit switch, the default state is that the pulled-out end of the sunshade curtain 2 just covers the lower part of the side window. When it moves upwards, triggering the mechanical limit switch, the default state is that the pulled-out end of the sunshade curtain 2 is just completely retracted into the sunshade curtain roller.

[0040] Understandably, considering that in existing technologies, the width of the side windows of MPV models varies at different heights, meaning that the side of the side window at its maximum width at the top cannot be completely covered, and light can still enter the vehicle through the un-curtained side window area. Therefore, the sunshade curtain in this embodiment is made of a flexible material that can be stretched appropriately. Even when the two sliders move the sunshade curtain 2 to different heights, the length of the sunshade curtain 2 can be appropriately stretched because the length of the side window varies at different heights, thus not affecting the operation of the entire structure.

[0041] In addition to using flexible materials for easy stretching, the sunshade curtain fabric 2 can also utilize special materials with heat insulation, sound insulation, and UV protection functions to further enhance the performance and comfort of the sunshade curtain. Furthermore, a variety of colors and patterns of fabric can be offered to suit different vehicle models and user needs, increasing the product's personalization and aesthetic appeal.

[0042] It is understood that in this embodiment, the front slider 41 and the rear slider 31 always maintain the same height when rising and falling. When the lengths of the front slide rail 4 and the rear slide rail 3 are different due to the different shapes of the car windows, the front slide rail 41 and the rear slide rail 31 can always maintain the same height when rising and falling by adjusting the different transmission ratios of the front winding disc gear 16, the rear winding disc gear 15 and the output gear. The purpose is to enable the sunshade curtain 2 to be smoothly unfolded and smoothly retracted into the sunshade curtain roller 5.

[0043] In this embodiment, the front slide rail 4 and the rear slide rail 3 are installed inside the window frame trim panel on the inside of the door. The window frame trim panel is arranged in an inverted U-shape. The sunshade roller 5 is also installed inside the window frame trim panel. The sunshade curtain 2 can be pulled out from the gap between the window frame trim panel and the window.

[0044] By placing the front sliding rail 4 and the rear sliding rail 3 inside the window frame trim panels on the left and right sides of the car's side windows, and using sliders to drive the sunshade curtain 2 to open and close, the sunshade curtain 2 covers a larger area. By coordinating with the upper trim panel of the door panel, it can achieve 100% complete coverage of the window area.

[0045] Compared to related technologies that directly drive the support rod to rise and cause the curtain to unfold from bottom to top, resulting in the curtain not being able to completely cover the car window on both sides, the sunshade assembly in this disclosure runs within the slide rail after the pull cable and slider are fixed during driving. This allows the sunshade curtain edge panel to be hidden within the track by the slider. The slider is subjected to uniform force, making the sunshade curtain more stable. Since there is no support rod, the weight is also lighter than related technologies. At the same time, it solves the problem of exposed antennas on the support rod in related technologies, and the spatial arrangement is also more flexible than related technologies.

[0046] Understandably, PTFE bushings or ball bearing structures can be embedded in the front and rear slide rails to reduce the sliding resistance of the slider, improve the smoothness of the slider's movement, and at the same time reduce wear on the slide rails and extend their service life.

[0047] Understandably, the hexagonal connector structure at both ends of the pull wire 19 is interference-fitted with the hexagonal hole inside the slider, and clamps or ultrasonic welding are added to improve vibration resistance and prevent relative rotation or loosening.

[0048] like Figure 1 As shown, the pull wire between the sunshade drive assembly 1 and the front slide rail 4 and the rear slide rail 3 is provided with a spiral steel strip structure, which is the prior art.

[0049] Slide rails can be made of plastic or metal. Plastic slide rails have the advantages of being lightweight and low-cost, while metal slide rails have higher strength and durability. The choice can be made according to actual needs and cost budget.

[0050] Example 2 An automobile is equipped with an electric sunshade with sliding rails as described in Embodiment 1. The automobile can be an MPV model, and its side windows have different widths at different heights. When the front and rear sliders are raised and lowered synchronously to different heights, the sunshade curtain is stretched to different degrees, thereby achieving full coverage of the side windows of the MPV model.

[0051] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A motorized sunshade for vehicle windows with sliding rails, characterized in that, include: The sunshade roller is installed at the top edge of the window frame; The sunshade drive assembly includes an output gear, which engages with the front winding disc gear and the rear winding disc gear respectively to achieve rotation of the front winding disc and the rear winding disc; The sunshade drive assembly includes a motor, and a worm gear is provided at the output end. The worm gear cooperates with a worm wheel. The worm wheel and the output gear are coaxially arranged and rotate synchronously. The motor realizes the output gear to drive the front winding disc gear and the rear winding disc gear to rotate through the worm gear mechanism. The sliding rail structure includes a front sliding rail and a rear sliding rail located on both sides of the window frame; fixed pulleys are provided at the top of the front and rear sliding rails, and pull lines are provided between the two sets of fixed pulleys and the corresponding front and rear winding reels. Each pull line is equipped with a slider, and the two sets of sliders cooperate with the corresponding sliding rails and are connected to the ends of the sunshade curtain; the output gear drives the front and rear winding reels to rotate, so that the two sets of sliders on the pull lines drive the sunshade curtain to rise and fall. The top ends of the front and rear slide rails are located near the front and rear ends of the sunshade roller, and the slider connects the front and rear ends of the sunshade curtain on the extended side.

2. The electric sunshade for a car window with a sliding rail according to claim 1, characterized in that, The front winding disc gear is provided with a front winding disc, and the rear winding disc gear is provided with a rear winding disc; the winding disc is provided with a spiral groove.

3. The electric sunshade for a car window with a sliding rail according to claim 1, characterized in that, The rear slide rail is provided with a rear fixed pulley at the top, and a rear pull line is provided between the rear fixed pulley and the rear winding reel. A rear slider is provided on the rear pull line. The front slide rail is provided with a front fixed pulley at the top, and a front pull line is provided between the front fixed pulley and the front winding reel. A front slider is provided on the front pull line. The slider is located on the pull line on one side of the two sets of fixed pulleys that are close to each other.

4. The electric sunshade for a car window with a sliding rail according to claim 1, characterized in that, The slide rail is equipped with a mechanical limit switch, which can be triggered when the slider slides to a designated position within the slide rail.

5. A motorized sunshade with sliding rails for vehicle windows according to claim 4, characterized in that, One end of each pull wire is fixedly connected to one end of the slider, and the other end is fixedly connected to the other end of the slider after passing over the winding disc and pulley.

6. The electric sunshade for a car window with a sliding rail according to claim 1, characterized in that, The front and rear slide rails are positioned with openings close to each other on one side.

7. The electric sunshade for a car window with a sliding rail according to claim 1, characterized in that, The sunshade curtain fabric is made of flexible material.

8. A car, characterized in that, The automobile is equipped with an electric sunshade with a sliding rail as described in any one of claims 1-7.

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