Waterfall type double-track electric sunshade curtain and automobile

Abstract

A waterfall type double-track electric sunshade curtain and a car, the waterfall type double-track electric sunshade curtain comprising a reel, a driving assembly, symmetrically arranged first and second slide rails, a pull wire, two groups of sliding blocks and curtain cloth, the reel being horizontally fixedly arranged on a roof of the car body, the two slide rails being fixedly arranged on two sides of the reel, the top end of the slide rail being assembled with a fixed pulley through a steering support, the driving assembly being internally provided with a winding reel, the pull wire being arranged between the winding reel and the two fixed pulleys, the sliding blocks being fixed on the pull wire to synchronously pull the end portion of the curtain cloth, the slide rail being internally independently separated into a sliding groove, a wire slot and a wire channel, the sliding and pull wire areas not interfering with each other, a horizontal strip-shaped hole being formed in a sliding block connecting portion, a connecting column of a front end decorative plate of the curtain cloth being capable of horizontally sliding in the strip-shaped hole to automatically compensate for an assembly tolerance of the whole car, the winding reel being reversely driven by a motor and a gear pair to synchronously slide the two sliding blocks to realize retraction and expansion of the curtain cloth. The scheme adopts a double-side synchronous pulling structure, the transmission force is balanced, and the running smoothness of the vehicle-mounted sunshade curtain and the service life of the whole car are improved.

Description

Technical Field

[0001] This invention relates to automotive interior sunshade accessories technology, specifically to a vehicle-mounted electric sunshade curtain adapted for use with automotive side windows and the vehicle itself. Background Technology

[0002] Most existing vehicle-mounted electric sunshades use a single-sided, single-track traction structure, which has many compatibility defects:

[0003] The continuous vibration during vehicle operation causes uneven force on the single-rail, single-side traction curtain, making the curtain prone to slipping to one side and wrinkling. After the sunshade slips, it will rub against the window frame and make abnormal noises. Long-term use will cause the curtain to tear and the side window sealing strips to wear out.

[0004] Traditional slide rails share the same cavity for the internal cable routing groove and the slider sliding groove. When the vehicle is bumpy, the cable and the slider and the inner wall of the slide rail will continuously rub against each other, resulting in loud driving noise. At the same time, the cable and slider wear out quickly, and the vehicle is prone to jamming and failure after long-term use.

[0005] The assembly tolerances of vehicle components are strict. The slider and the curtain are mostly rigidly fixed. Even small dimensional deviations in processing and assembly can cause the curtain to stretch and deform, making it difficult to install and debug on the vehicle.

[0006] Single-sided traction only involves force on one end, and the motor gear pair is subjected to unbalanced load for a long time. The impact load brought by vehicle start-stop and bumps can easily cause gear tooth breakage and motor overheating damage. The repair and replacement of drive components in the confined space of the vehicle is extremely inconvenient.

[0007] Conventional pulleys are directly mounted on the slide rails without independent support brackets. When the vehicle vibrates, the pulleys are prone to loosening and displacement, the traction cable may derail, the sunshade may fail, and the malfunction may not be able to be repaired quickly while the vehicle is in motion.

[0008] In summary, existing vehicle-mounted electric sunshades cannot adapt to usage scenarios involving vehicle bumps and high assembly precision requirements. They suffer from problems such as curtain misalignment and abnormal noise, easy wear and tear, short drive life, and troublesome fault repair, and urgently need structural optimization. Summary of the Invention

[0009] To address the shortcomings of existing vehicle-mounted electric sunshades, such as fabric misalignment under vehicle vibration conditions, high operating noise, easy damage to transmission components, difficulty in vehicle installation and debugging, and inconvenience in maintenance, this invention provides a vehicle-mounted electric sunshade that adopts a dual-side synchronous traction, three-cavity separation of sliding rails, and floating adjustable connection structure. This structure is adapted to the vibration environment of automobiles, improves the smoothness of operation, extends the service life of vehicle-mounted drive components, and reduces the difficulty of vehicle assembly and after-sales maintenance.

[0010] To achieve the above and other related objectives, the technical solution provided by this invention is: a waterfall-style double-track electric sunshade curtain, comprising:

[0011] A scroll on which a curtain is wound;

[0012] A drive assembly for driving the winding reel to rotate;

[0013] The slide rails include a first slide rail and a second slide rail disposed on both sides of the roller. The first slide rail has a first fixed pulley at its top end, and the second slide rail has a second fixed pulley at its top end. A pull line is disposed between the first fixed pulley, the second fixed pulley, and the winding reel. A first slider and a second slider are disposed on the pull line. The first slider slides in the first slide rail, and the second slider slides in the second slide rail. The first slider and the second slider are connected to the end of the curtain fabric. The drive assembly drives the winding reel to rotate, thereby causing the sliders on the pull line to slide synchronously in the corresponding slide rails, thus cooperating with the roller to realize the function of opening and closing the curtain fabric.

[0014] The preferred technical solution is as follows: a first steering bracket is fixedly provided at the end of the first slide rail, and the first fixed pulley is rotatably mounted on the first steering bracket.

[0015] The preferred technical solution is that a second steering bracket is fixedly provided at the end of the second slide rail, and the second fixed pulley is rotatably mounted on the second steering bracket.

[0016] The preferred technical solution is as follows: the first slide rail is provided with a first slide groove, a first wire groove and a first channel, the first slide groove and the first wire groove are connected, and the first channel is independently provided; the first slider includes a first clamping part, a first slider part and a first connecting part, the first clamping part is provided in the first wire groove, the first slider part is provided in the first slide groove, and the first connecting part is provided at the groove opening of the first slide groove; the pull wire passes through the first channel and the first wire groove, and the first clamping part is fixed to the pull wire.

[0017] The preferred technical solution is as follows: the second slide rail is provided with a second slide groove, a second wire groove, and a second channel, the second slide groove and the second wire groove are connected, and the second channel is independently provided; the second slider includes a second clamping part, a second slider part, and a second connecting part, the second clamping part is provided in the second wire groove, the second slider part is provided in the second slide groove, and the second connecting part is provided at the groove opening of the second slide groove; the pull wire passes through the second channel and the second wire groove, and the second clamping part is fixed to the pull wire.

[0018] The preferred technical solution is as follows: the first connecting part and the second connecting part have the same structure, each consisting of two upper and lower opposing side plates, and the two side plates are provided with strip holes that are arranged opposite each other and perpendicular to their own sliding direction.

[0019] The preferred technical solution is as follows: the curtain is connected to the first slider and the second slider through a decorative panel, and both ends of the decorative panel are provided with corresponding connecting posts, and the two connecting posts are respectively provided in the two strip holes.

[0020] The preferred technical solution is as follows: the drive assembly includes a motor, a drive gear and a driven gear, the driven gear is rotatably mounted in the housing via a rotating shaft, the winding reel is coaxially fixed on the rotating shaft, and the drive gear meshes with the driven gear and is controlled to rotate by the motor.

[0021] A preferred technical solution includes a rotary guide connected to the roller. The rotary guide includes a base with a spiral groove and a threaded connector connected to the roller and screwed into the spiral groove. One end of the roller is rotatably connected to the first slide rail, and the other end of the roller is fixedly connected to the base. The threaded connector is screwed into the base and fixedly connected to the second slide rail. The rotary guide guides the roller to rotate and move laterally within a certain distance, thereby matching the position of the unfolded curtain with the side window.

[0022] An automobile includes a vehicle body, wherein the aforementioned waterfall-style dual-track electric sunshade is installed at the side window position of the vehicle body.

[0023] Due to the application of the above technical solution, the beneficial effects of this invention are as follows:

[0024] The dual-side synchronous traction structure ensures that the vehicle will not veer off course or produce abnormal noises during bumpy rides. The use of dual sliding rails and dual sliders for synchronous traction of the curtain ensures that the curtain is always evenly stressed at both ends when the vehicle is moving, preventing one side from shifting and rubbing against the side window frame. This eliminates friction noises under bumpy conditions, avoids long-term wear and tear on the curtain and side window rubber strips, and significantly improves the stability of vehicle use.

[0025] The slide rail has three independently separated chambers, reducing driving noise and slowing down component wear. The slide rail completely separates the areas for slider sliding, cable clamping, and main cable routing, so that there is no large-area contact friction between the slider and the cable during driving bumps, which greatly reduces the noise inside the vehicle when the sunshade is raised or lowered. At the same time, it reduces the wear of the cable, slider, and slide rail, adapts to the long-term high-frequency vibration conditions of the vehicle, and reduces the frequency of replacement of vehicle parts.

[0026] The floating connection with strip-shaped holes adapts to the assembly tolerances of the whole vehicle, making installation and debugging simple; the slider connection part is equipped with a horizontal long strip hole, and the trim panel connecting column can slide slightly laterally to compensate for assembly size errors. When there are small tolerances in the mass production of automotive parts, there is no need for precise manual calibration, simplifying the whole vehicle assembly process and avoiding deformation of the curtain caused by rigid pulling.

[0027] The closed-loop cable balances the load, extending the service life of the vehicle drive motor and gears; the motor and gear pair drive the closed-loop cable to receive synchronous force on both sides, eliminating unilateral load impact; the vibration and impact load generated by vehicle start-stop and speed bumps is evenly distributed, making it less prone to gear breakage and motor overheating and burnout, adapting to complex impact conditions in vehicles, and reducing the frequency of after-sales maintenance of the drive assembly in the confined space of the vehicle.

[0028] The independent, separate steering bracket facilitates troubleshooting and is suitable for confined spaces inside the vehicle. The fixed pulley can be detachably installed on the top of the slide rail via the independent steering bracket. When the vehicle experiences cable derailment or pulley wear, there is no need to completely disassemble the side window and slide rail. The pulley and cable can be replaced simply by disassembling the steering bracket, which greatly reduces the difficulty of maintenance operations in confined spaces inside the vehicle. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the sunshade curtain structure involved in the present invention.

[0030] Figure 2 This is a schematic diagram of the first slide rail structure involved in the present invention.

[0031] Figure 3 This is a schematic diagram of the first slider structure involved in the present invention.

[0032] Figure 4 This is a schematic diagram of the decorative panel structure involved in the present invention.

[0033] Figure 5 This is a diagram showing the assembly position of the electric sunshade roller of the present invention on a car.

[0034] Figure 6 This is a schematic diagram of the structure of a rotary guide component of the present invention. Detailed Implementation

[0035] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

[0036] Please see Figures 1-6It should be noted that in the description of this invention, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. These terms are used only for the convenience of describing the invention and for 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 the invention. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. The terms "horizontal," "vertical," and "suspended," etc., do not indicate that the component must be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0037] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0038] Example:

[0039] like Figure 1 As shown, according to a general technical concept of the present invention, a vehicle-mounted electric sunshade is provided, including a roller 1, a drive assembly 2, a first slide rail 3, a second slide rail 4, a closed-loop pull cable 5, a first slider 6, a second slider (not shown), and a vehicle-mounted curtain 8; the roller 1 is horizontally fixed at a position 100 corresponding to the side window on the roof of the vehicle. Figure 5 The curtain 8 is rolled up and stored on the surface of the roller 1; the first slide rail 3 and the second slide rail 4 are symmetrically fixed on the left and right sides of the roller 1 at positions corresponding to the side window frame.

[0040] The first guide rail 3 has a snap-fit ​​at the top to fix the first steering bracket 310, and the first fixed pulley (not shown) is rotatably mounted on the first steering bracket 310; the second guide rail 4 has a snap-fit ​​at the top to fix the second steering bracket 410, and the second fixed pulley (not shown) is rotatably mounted on the second steering bracket 410; the drive assembly 2 is fixedly installed, and a winding reel is provided inside. The winding reel, the first fixed pulley, and the second fixed pulley are connected by a closed-loop pull cable 5 to form a complete traction circuit, which is suitable for the narrow space of the car window.

[0041] like Figure 2 and Figure 3As shown, the first slide rail 3 has an independently formed first groove 31, a first wire groove 32, and a first channel 33. The first groove 31 and the first wire groove 32 are partially connected, while the first channel 33 isolates the wiring. The first slider part 61 of the first slider 6 slides within the first groove 31, and the first wire clamping part 62 is clamped and fixed on the pull wire 5 and placed in the first wire groove 32. The main wire passes independently through the first channel 33, and the sliding and wiring areas do not interfere with each other. The cavity structure of the second slide rail 4 is symmetrical with that of the first slide rail 3, and the assembly structure of the second slider is completely identical to that of the first slider 6.

[0042] like Figure 3 and Figure 4 As shown, the first connecting part 63 of the first slider 6 is composed of two parallel side plates 631, and the side plates 631 have transverse through strip holes 6311; the front end of the curtain is riveted to the decorative plate 9, and the two ends of the decorative plate 9 are provided with upper and lower paired cylindrical connecting posts 91. The connecting posts 91 pass through the strip holes 6311 with gaps, and the connecting posts 91 can slide slightly laterally along the strip holes 6311, automatically compensating for assembly size deviations when batch loading.

[0043] Drive assembly 2 integrated structure: The sealed housing is adapted to the dustproof environment inside the vehicle. A micro vehicle motor is installed inside the housing. The motor output shaft is connected to the driving gear, and the driven gear meshes with the driving gear. The driven gear is fixed on the metal shaft, and the winding reel is coaxially locked to the shaft. The motor is connected to the vehicle control button through the whole vehicle wiring harness and receives electrical signals to realize forward and reverse rotation.

[0044] Work process

[0045] Sunshade Deployment: The deployment signal is activated by pressing the control button inside the vehicle. The onboard motor starts forward, and the drive gear meshes with the driven gear, causing the winding reel to rotate synchronously, pulling the closed-loop cable in a cyclical motion. The first and second sliders on the cable slide downwards simultaneously along the side rails. These sliders, through the trim panel, pull the curtain out from the roller, completely covering the window to achieve shading. The curtain covers the side windows from top to bottom, creating a "waterfall" effect, hence the name "waterfall-style" dual-track electric sunshade. When the vehicle is traveling on bumps, the synchronous traction of the two sliders ensures the curtain remains flat and without shifting. The floating structure with strip-shaped holes automatically compensates for assembly gaps, preventing friction with the side window frame. The three-chamber design of the rails eliminates additional friction noise throughout the process, ensuring an uninterrupted driving experience.

[0046] Sunshade retraction: Press the retraction button, the motor reverses its rotation, the winding reel pulls the closed-loop cable in the opposite direction, and the first and second sliders slide upwards along the rail simultaneously, pulling the curtain fabric evenly back to the roller, fully exposing the window to light. Simultaneous retraction from both sides ensures even curtain winding, preventing wrinkles or jamming on one side.

[0047] Vehicle-mounted durability guarantee: The closed-loop cable evenly distributes the tension on both sides, so the impact load from vehicle bumps and acceleration / deceleration will not be concentrated on one side, and the motor and gears will not be damaged by unbalanced load during long-term operation; if pulley wear or cable fraying occurs after long-term use, the parts can be replaced simply by removing the independent steering bracket at the top of the slide rail, without disassembling the side window assembly, making maintenance convenient.

[0048] like Figure 6 As shown, it also includes a rotary guide connected to the roller. The rotary guide includes a base 200 with a spiral groove and a screw connector 300 connected to the roller 1 and screwed into the spiral groove. One end of the roller 1 is rotatably connected to the first slide rail 3, and the other end of the roller 1 is fixedly connected to the base 200. The screw connector 300 is screwed into the base 200 and fixedly connected to the second slide rail 4. The rotary guide guides the roller 1 to rotate and move laterally within a certain distance, thereby matching the position of the curtain 8 after it is unfolded with the side window.

[0049] like Figure 5 As shown, this application also relates to a car, including but not limited to sedans, SUVs, MPVs, etc., wherein the car body side window is equipped with the above-mentioned waterfall-style dual-track electric sunshade.

[0050] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A waterfall-style double-track electric sunshade curtain, characterized in that, include: A scroll on which a curtain is wound; Drive assembly for driving the winding reel to rotate; The slide rails include a first slide rail and a second slide rail disposed on both sides of the roller. The first slide rail has a first fixed pulley at its top end, and the second slide rail has a second fixed pulley at its top end. A pull line is disposed between the first fixed pulley, the second fixed pulley, and the winding reel. A first slider and a second slider are disposed on the pull line. The first slider slides in the first slide rail, and the second slider slides in the second slide rail. The first slider and the second slider are connected to the end of the curtain fabric. The drive assembly drives the winding reel to rotate, thereby causing the sliders on the pull line to slide synchronously in the corresponding slide rails, thus cooperating with the roller to realize the function of opening and closing the curtain fabric.

2. The waterfall-style double-track electric sunshade curtain according to claim 1, characterized in that: The first guide rail is fixedly provided with a first steering bracket at its end, and the first fixed pulley is rotatably mounted on the first steering bracket.

3. The waterfall-style double-track electric sunshade curtain according to claim 1, characterized in that: The end of the second slide rail is fixedly provided with a second steering bracket, and the second fixed pulley is rotatably mounted on the second steering bracket.

4. A waterfall-style double-track electric sunshade curtain according to claim 1, characterized in that: The first slide rail is provided with a first slide groove, a first wire groove, and a first channel. The first slide groove and the first wire groove are connected, and the first channel is independently provided. The first slider includes a first clamping part, a first slider part, and a first connecting part. The first clamping part is provided in the first wire groove, the first slider part is provided in the first slide groove, and the first connecting part is provided at the groove opening of the first slide groove. The pull wire passes through the first channel and the first wire groove, and the first clamping part is fixed to the pull wire.

5. A waterfall-style double-track electric sunshade curtain according to claim 4, characterized in that: The second slide rail is provided with a second slide groove, a second wire groove, and a second channel. The second slide groove and the second wire groove are connected, and the second channel is independently provided. The second slider includes a second clamping part, a second slider part, and a second connecting part. The second clamping part is provided in the second wire groove, the second slider part is provided in the second slide groove, and the second connecting part is provided at the groove opening of the second slide groove. The pull wire passes through the second channel and the second wire groove, and the second clamping part is fixed to the pull wire.

6. A waterfall-style double-track electric sunshade curtain according to claim 5, characterized in that: The first connecting part and the second connecting part have the same structure, each consisting of two upper and lower opposing side plates, and the two side plates are provided with strip holes that are arranged opposite each other and perpendicular to their own sliding direction.

7. A waterfall-style double-track electric sunshade curtain according to claim 6, characterized in that: The curtain is connected to the first slider and the second slider through a decorative panel. Both ends of the decorative panel are provided with corresponding connecting posts, and the two connecting posts are respectively located in the two strip holes.

8. A waterfall-style double-track electric sunshade curtain according to claim 1, characterized in that: The drive assembly includes a motor, a drive gear, and a driven gear. The driven gear is rotatably mounted in the housing via a rotating shaft. The winding reel is coaxially fixed on the rotating shaft. The drive gear meshes with the driven gear and is controlled to rotate by the motor.

9. A waterfall-style double-track electric sunshade curtain according to claim 1, characterized in that: It also includes a rotary guide connected to the spool. The rotary guide includes a base with a spiral groove and a screw connector that is connected to the spool and screwed into the spiral groove. One end of the spool is rotatably connected to the first slide rail, and the other end of the spool is fixedly connected to the base. The screw connector is screwed into the base and fixedly connected to the second slide rail. The rotary guide guides the spool to rotate and move laterally within a certain distance, thereby matching the position of the curtain after it is unfolded with the side window.

10. An automobile, comprising a vehicle body, characterized in that, The side window of the vehicle body is equipped with a waterfall-style dual-track electric sunshade as described in any one of claims 1-9.

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