Roller shutter for vehicle

Abstract

The utility model relates to a roller shutter for a vehicle, which comprises a framework assembly, a roller shutter body and a roller shutter cover, the curtain cloth assembly comprises curtain cloth and a winding drum, a flexible circuit structure is arranged in the curtain cloth, and the winding drum is rotatably connected to one end of the framework assembly so as to wind and unwind the curtain cloth; the electric connection structure comprises a hollow cylindrical structure and a mandrel-shaped structure, one of the hollow cylindrical structure and the mandrel-shaped structure is electrically connected with the controller assembly through a wire harness, and the other one of the hollow cylindrical structure and the mandrel-shaped structure is electrically connected with the flexible circuit structure through a wire harness; the hollow cylindrical structure and the mandrel-shaped structure can rotate relative to each other and are electrically connected during relative rotation. According to the utility model, the winding and unfolding functions can be realized, and meanwhile, the transmission of current and signals of the flexible circuit structure cannot be influenced.

Description

Technical Field

[0001] This utility model relates to the field of automotive interior decoration technology, and in particular to a vehicle roller blind. Background Technology

[0002] With the development of the automotive industry, people's requirements for car interiors are also increasing, leading to many modifications to car roofs. For example... Figure 1 As shown, a flexible circuit structure is installed inside the roller blind to meet various functions, such as creating a starry sky decorative effect, offering a variety of colors, and enhancing the overall sense of space and texture.

[0003] However, to ensure the transmission of current and signals to the flexible circuit structure, the curtain usually does not support a rewind function because the wiring harness and power supply are fixed, making it impossible to maintain power supply and signal transmission to the components undergoing rewinding. Therefore, while the flexible circuit structure can enrich the decorative effects of the curtain, for ceilings with skylights, the inability to rewind the curtain will hinder the use of the skylight. Utility Model Content

[0004] To address the aforementioned issues, this invention provides a vehicle roller blind that maintains electrical connection with the fixed component while the moving component moves relative to it, thus combining the functions of rolling up and unrolling the blind with rich display effects.

[0005] This utility model is achieved through the following solution: a vehicle roller blind, comprising:

[0006] The frame assembly can be installed on the car roof;

[0007] A curtain assembly includes a curtain and a roller, wherein the curtain has a built-in flexible circuit structure and the roller is rotatably connected to one end of the frame assembly to wind up and unwind the curtain;

[0008] An electrical connection structure includes a hollow cylindrical structure and a spindle-shaped structure. One of the hollow cylindrical structure and the spindle-shaped structure is electrically connected to a controller assembly via a wiring harness. The other of the hollow cylindrical structure and the spindle-shaped structure is electrically connected to a flexible circuit structure via a wiring harness. The hollow cylindrical structure and the spindle-shaped structure are rotatable relative to each other and maintain electrical connection during relative rotation.

[0009] A further improvement of this utility model is that: one of the hollow cylindrical structure and the spindle-shaped structure is provided with an elastic conductive structure, and the hollow cylindrical structure and the spindle-shaped structure maintain electrical connection when they rotate relative to each other through the elastic conductive structure.

[0010] A further improvement of this invention is that the elastic conductive structure is constructed as a conductive brush.

[0011] A further improvement of this utility model is that the conductive brush includes a plurality of metal wires arranged on the inner wall of the hollow cylindrical structure.

[0012] A further improvement of this utility model is that the metal wires are divided into multiple groups, and each group of metal wires is arranged along the axial direction of the hollow cylindrical structure.

[0013] A further improvement of this utility model is that: multiple grooves are provided axially on the outer periphery of the mandrel-shaped structure, and the grooves are arranged to surround the mandrel-shaped structure so that multiple metal wires can overlap accordingly, thereby restricting the axial movement of the hollow cylindrical structure when it rotates relative to the mandrel-shaped structure.

[0014] A further improvement of this utility model is that: the hollow cylindrical structure is divided along the axial direction into an intermediate cylinder for connection / contact of the elastic conductive structure, and two limiting cylinders located at both ends of the intermediate cylinder to prevent the mandrel-shaped structure from moving relative to the hollow cylindrical structure along the axial and radial directions; and / or the mandrel-shaped structure is divided along the axial direction into an intermediate section for contact / connection of the elastic conductive structure, and two limiting sections located at both ends of the intermediate section to prevent the mandrel-shaped structure from moving relative to the hollow cylindrical structure along the axial and radial directions.

[0015] A further improvement of this utility model is that the hollow cylindrical structure is formed by two arc-shaped shells.

[0016] A further improvement of this utility model is that: the drum is provided with a slot for the wire harness to extend out and connect the flexible circuit structure and the electrical connection structure.

[0017] A further improvement of this utility model is that the electrical connection structure is disposed inside one end of the drum, and the end of the drum is also provided with a limiting sleeve, which is fixedly connected to the hollow cylindrical structure or the mandrel structure to prevent the electrical connection structure from moving axially.

[0018] This invention establishes an electrical connection between fixed and moving components through a hollow cylindrical structure and a spindle-shaped structure. This transforms the relative motion between the moving and fixed components into relative rotation between the hollow cylindrical and spindle-shaped structures. Furthermore, a specific structural arrangement between the hollow cylindrical and spindle-shaped structures maintains this electrical connection during relative rotation, ensuring that the moving and fixed components remain electrically connected. This allows the vehicle roller blind to support both the rolling and unrolling of the curtain without affecting the current and signal transmission to the flexible circuit structure. It balances the rolling and unrolling functions of the curtain with rich display effects, and also allows for sunroof use when the curtain is rolled up. Moreover, the rotational contact electrical connection structure enables the transmission of current and signals to the flexible circuit structure during the curtain's movement and unfolding, achieving a starry sky display effect even during unfolding. Attached Figure Description

[0019] Figure 1 The diagram shows a usage scenario of this utility model.

[0020] Figure 2 An assembly diagram of the present invention is shown.

[0021] Figure 3 An exploded view of the present invention is shown.

[0022] Figure 4 It shows Figure 3 Enlarged view of point A in the image.

[0023] Figure 5 An exploded view of the curtain assembly in this utility model is shown.

[0024] Figure 6 The diagram shows the assembly state of the hollow cylindrical structure, the mandrel structure, and the roll in this invention.

[0025] Figure 7 An exploded view of the hollow cylindrical structure, the mandrel structure, and the roll of this invention is shown.

[0026] Figure 8 An enlarged view of the core shaft structure of this utility model is shown.

[0027] Figure 9 An exploded view of the hollow cylindrical structure of this invention is shown.

[0028] Figure 10 A half-sectional view of the hollow cylindrical structure, mandrel structure, and roll in the assembled state of this utility model is shown.

[0029] Figure 11The diagram shows the planar arrangement of the hollow cylindrical structure, the mandrel structure, and the roll in the assembled state of this utility model.

[0030] Figure 12 A schematic diagram showing the contact state between the straight metal wire and the mandrel-shaped structure in this invention is shown.

[0031] Figure 13 A schematic diagram showing the contact state between the curved metal wire and the mandrel-shaped structure in this invention is shown.

[0032] Figure 14 A schematic diagram of the present invention is shown when the curtain is in the unfolded state.

[0033] Figure 15 It shows Figure 14 Enlarged view of point B in the image.

[0034] Figure 16 It shows Figure 14 Enlarged view of point C in the image.

[0035] Figure 17 It shows Figure 15 Section II in the diagram.

[0036] Figure 18 It shows Figure 16 Sectional view II-II in the middle.

[0037] Figure 19 The diagram illustrates the principle of the drive assembly driving the flexible lead screw to unfold and rewind the curtain fabric in this invention.

[0038] Figure 20 An enlarged view of the drive assembly in this invention is shown.

[0039] Figure 21 A plan view of the present invention in its assembled state is shown.

[0040] Figure 22 It shows Figure 21 Sectional view III-III.

[0041] Figure 23 It shows Figure 2 Sectional view IV-IV in the middle.

[0042] Figure 24 The diagram illustrates the principle of current and signal transmission achieved through rotating contact in this invention.

[0043] Figure 25 A plan view of the flexible circuit structure built into the curtain fabric in this utility model is shown.

[0044] Figure 26The diagram illustrates the principle of current and signal transmission achieved through moving docking in this invention.

[0045] Figure 27 The diagram shows the assembly state of the male and female connectors in this invention.

[0046] Figure 28 A schematic diagram of the female connector in this utility model is shown.

[0047] Figure 29 A schematic diagram of the male connector in this invention is shown.

[0048] In the diagram: 1. Car roof; 2. Frame assembly; 21. Front beam; 22. Rear beam; 23. Side beam; 24. First axle side bracket; 25. Second axle side bracket; 251. Internal insert; 26. Fixed shaft; 3. Curtain assembly; 31. Curtain; 311. Steel wire; 312. Pull plate; 313. Male connector assembly bracket; 32. Roller; 321. Groove; 33. Limiting sleeve; 34. Flexible circuit structure; 341. Chip; 35. Upper chip bracket; 351. Strip opening; 36. Lower chip bracket; 4. Drive assembly; 41. Flexible lead screw; 411. Flexible shaft with rubber coating; 42. 43. Motor; 44. Gear; 51. Limiting pad; 51. Hollow cylindrical structure; 511. First wiring harness; 512. First arc-shaped housing; 513. Second arc-shaped housing; 514. Intermediate cylinder; 515. Limiting cylinder; 52. Mandrel-shaped structure; 521. Second wiring harness; 5211. Bending section; 522. Groove; 523. Intermediate section; 524. Limiting section; 53. Conductive brush; 531. Metal wire; 54. Male connector assembly; 541. Plug; 55. Female connector assembly; 551. Socket; 6. Elastic element; 7. Controller assembly; 81. First mounting pin; 82. Second mounting pin. Detailed Implementation

[0049] To address the problem that existing automotive curtains with flexible circuit structures cannot be rolled up, thus hindering sunroof use, this invention provides an automotive roller blind. This roller blind allows the moving parts to maintain electrical connection with the fixed parts while moving relative to them, thus balancing the rolling up and unfolding functions of the curtain with a rich display effect. The following detailed description, in conjunction with the accompanying drawings, provides further insight into this automotive roller blind.

[0050] See Figures 1 to 13 , Figure 19 and Figures 24-25As shown, a vehicle roller blind includes a frame assembly 2, a curtain assembly 3, and an electrical connection structure. The frame assembly 2 is a rectangular frame structure, including a front beam 21 at the front end, a rear beam 22 at the rear end, and two side beams 23 connecting the two ends of the front beam 21 and the rear beam 22. The frame assembly 2 can be mounted on a vehicle roof 1 and corresponds to the sunroof on the vehicle roof 1. Specifically, the frame assembly 2 can be fixedly installed on the inside of the vehicle roof 1, or detachably assembled to the inside of the vehicle roof 1. In the assembled state, the front beam 21 is located at the front end in the direction of vehicle travel, and the rear beam 22 is located at the rear end in the direction of vehicle travel. The curtain assembly 3 includes a curtain 31 and a roller 32. The curtain 31 has a built-in flexible circuit structure 34 for enriching display functions. A common feature is that it can display a starry sky effect when powered on. The roller 32 is rotatably connected to one end of the frame assembly 2 (such as the rear beam 22 or the front beam 21) to roll up and unroll the curtain 31. When energized, the flexible circuit structure 34 can make the curtain 31 display visual effects such as a starry sky.

[0051] The winding and unfolding of the curtain 31 is controlled by the drive assembly 4. In some embodiments, the drive assembly 4 is mounted on the frame assembly 2 (such as the front beam 21 or rear beam 22), preferably on the opposite end of the roller 32. The drive assembly 4 drives and pulls the curtain 31 to achieve winding and unfolding of the curtain. Specifically, this can be achieved in conjunction with the flexible lead screw 41, that is, the drive assembly 4 drives one end connected to the flexible lead screw 41, and the other end of the flexible lead screw 41 is connected to the curtain 31. When the curtain 31 is in the unfolded state, it can cover the sunroof installed on the car roof 1, so that the area below the sunroof can display a starry sky or other display effects. When the curtain 31 is in the rolled-up state, the frame assembly 2 is opened, and the sunroof at the car roof 1 can be exposed. The electrical connection structure includes a hollow cylindrical structure 51 and a spindle-shaped structure 52. One of the hollow cylindrical structure 51 and the spindle-shaped structure 52 is electrically connected to the controller assembly 7 via a wiring harness. The other of the hollow cylindrical structure 51 and the spindle-shaped structure 52 is electrically connected to the flexible circuit structure 34 via a wiring harness. The hollow cylindrical structure 51 and the spindle-shaped structure 52 can rotate relative to each other and can maintain electrical connection when rotating relative to each other.

[0052] This invention establishes an electrical connection between fixed components (including the frame assembly 2 and the controller assembly 7) and moving components (including the roller 32, the curtain 31, and the flexible circuit structure 34) through a hollow cylindrical structure 51 and a spindle-shaped structure 52. This converts the relative motion between the moving and fixed components into relative rotation between the hollow cylindrical structure 51 and the spindle-shaped structure 52. Furthermore, a specific structural fit between the hollow cylindrical structure 51 and the spindle-shaped structure 52 maintains the electrical connection during relative rotation, ensuring that the moving and fixed components remain electrically connected during relative motion. This allows the vehicle roller blind to support both the rolling and unfolding functions of the curtain 31 without affecting the current and signal transmission to the flexible circuit structure 34. It balances the rolling and unfolding functions of the curtain 31 with rich display effects, and also allows for the use of a sunroof when the curtain 31 is rolled up. Moreover, by adopting the above-mentioned rotating contact electrical connection structure, it is possible to transmit current and signals to the flexible circuit structure 34 during the movement and unfolding of the curtain 31, so as to achieve the purpose of presenting the display effect during the unfolding process.

[0053] Regarding the controller assembly 7, taking the example of the hollow cylindrical structure 51 being electrically connected to the controller assembly 7 and the spindle-shaped structure 52 being electrically connected to the flexible circuit structure 34, in this embodiment, the controller assembly 7 includes a first control module for controlling the chip 341 of the flexible circuit structure 34 and a second control module for controlling the drive assembly 4. The first control module and the second control module are integrated together to form the controller assembly 7 and are installed on the front beam 21 or the rear beam 22. Specifically, the current and signals transmitted by the controller assembly 7 can be provided by the vehicle signal and power supply. The first control module is connected to the hollow cylindrical structure 51 to transmit current and signals to the hollow cylindrical structure 51. The hollow cylindrical structure 51, through contact with the spindle-shaped structure 52, transmits the received current and signals to the chip 341 of the flexible circuit structure 34 to realize the starry sky effect display of the curtain 31. The second control module is connected to the drive assembly 4 to transmit control signals provided by the vehicle to the drive assembly 4. Upon receiving the control signals, the drive assembly 4 drives the flexible lead screw 41 to roll up and unroll the curtain 31. The specific principle is as follows: Figure 24 As shown.

[0054] The specific structure that enables the hollow cylindrical structure 51 and the spindle structure 52 to maintain an electrical connection during relative rotation can be an elastic conductive structure disposed on the hollow cylindrical structure 51 or the spindle structure 52. The elastic conductive structure enables the two to maintain a contact electrical connection without affecting their relative rotation.

[0055] In some embodiments, the elastic conductive structure is configured as a conductive brush. The following describes in detail, taking the conductive brush disposed on the hollow cylindrical structure 51 as an example, the specific cooperation between the hollow cylindrical structure 51, the spindle structure 52 and the curtain assembly 3, and the specific cooperation between the conductive brush 53 and the hollow cylindrical structure 51 and the spindle 52. (See reference...) Figures 6 to 13 As shown, the mandrel-shaped structure 52 is disposed along the axial direction of the drum 32 within the first end of the drum 32, and the hollow cylindrical structure 51 is sleeved between the mandrel-shaped structure 52 and the drum 32. The conductive brush 53 includes a plurality of metal wires 531, which are arranged on the inner wall of the hollow cylindrical structure 51 and contact the outer wall of the mandrel-shaped structure 52, so that the mandrel-shaped structure 52 remains in contact with the conductive brush 53 when it rotates relative to the hollow cylindrical structure 51.

[0056] Specifically, a first wire harness 511 is laid on the hollow cylindrical structure 51. The first end of the first wire harness 511 extends out of the hollow cylindrical structure 51 and is electrically connected to the controller assembly 7. The second end of the first wire harness 511 is electrically connected to the conductive brush 53. A second wire harness 521 is provided on the spindle-shaped structure 52. The first end of the second wire harness 521 is connected to the spindle-shaped structure 52. The second end of the second wire harness 521 extends out of the spindle-shaped structure 52 and is bent radially along the spindle-shaped structure 52 to form a bent section 5211. A slot 321 is provided on the drum 32 for the bent section 5211 to extend out. The curtain fabric 31 includes a fixed end fixed to the roller 32 and a movable end relative to the fixed end. Since the chip 341 cannot be rolled or bent, it is positioned at the fixed end of the curtain fabric 31 and fixed relative to the roller 32 at a location opposite the slot 321, allowing for reliable connection of the bending section 5211 and thus achieving electrical connection between the second end of the second wire harness 521 and the flexible circuit structure 34. The movable end of the curtain fabric 31 is fixedly connected to the flexible lead screw 41 for traction. Through the bending section 5211 and the slot 321, the spindle-shaped structure 52 can rotate with the rotation of the roller 32, while the hollow cylindrical structure 51 is fixed relative to the spindle-shaped structure 52 and the roller 32.

[0057] Among them, such as Figures 8-11As shown, the metal wires 531 on the conductive brush 53 are divided into multiple groups, and each group of metal wires 531 is arranged along the axial direction of the hollow cylindrical structure 51. Preferably, multiple grooves 522 are provided axially on the outer periphery of the spindle-shaped structure 52. The grooves 522 are arranged to surround the spindle-shaped structure 52 so that multiple metal wires 531 can overlap accordingly, thereby restricting the axial movement of the spindle-shaped structure 52 relative to the hollow cylindrical structure 51 when it rotates relative to the hollow cylindrical structure 51. Through the above-mentioned arrangement of the conductive brush 53, the first wire bundle 511 and the second wire bundle 521 can maintain an electrical connection when the spindle-shaped structure 52 rotates relative to the hollow cylindrical structure 51. This ensures that the curtain 31 can maintain the transmission of current and signals to the flexible circuit structure 34 whether it is in the winding state, unfolding state, or during movement.

[0058] In a preferred embodiment, the first end of the roll 32 (i.e. the end corresponding to the end with the electrical connection structure) is also provided with a limiting sleeve 33, which is fixedly connected to the hollow cylindrical structure 51 or the spindle structure 52 to prevent the electrical connection structure from moving axially.

[0059] For details regarding the assembly of the curtain assembly 3 and the frame assembly 2, please refer to [link / reference]. Figures 3-5 and Figures 14-18 As shown:

[0060] The limiting sleeve 33 is fixed on the skeleton assembly 2, and the hollow cylindrical structure 51 is fixed inside the limiting sleeve 33. Then, the first end of the drum 32 is sleeved outside the limiting sleeve 33, and the mandrel structure 52 is inserted into the hollow cylindrical structure 51, and the bent section 5211 of the second wire harness 521 extends out of the slot 321.

[0061] A chip holder is provided for securing the fixed end of the fabric 31 to the roller 32. The chip holder includes an upper chip holder 35 with a slot 351 and a lower chip holder 36 detachably connected to the upper chip holder 35. First, the roller 32 is fitted into the upper chip holder 35, and the fixed end of the fabric 31 is placed inside the upper chip holder 35, so that the chip 341 on the fixed end is connected to the bent section 5211 extending through the slot 321. Then, the rest of the fabric 31, except for the fixed end, passes through the slot 351 and is wrapped around the upper chip holder 35.

[0062] The lower chip support 36 is pressed onto the curtain 31 wrapped around the upper chip support 35 and fixed to the upper chip support 35 by the first mounting nail 81. At the same time, the moving end of the curtain 31 extends out through the joint between the upper chip support 35 and the lower chip support 36.

[0063] The roller 32, on which the curtain fabric 31 is wound, is installed as a whole on the rear beam 22 or the front beam 21. The two ends of the roller 32 are fixed in different ways. For the first end (i.e., the end with the electrical connection structure), see [reference needed]. Figure 14 , Figure 15 and Figure 17 As shown, a first axial support 24 is provided, which has a through hole. A limiting sleeve 33 is inserted into and fixed in the through hole, and the first axial support 24 is fixed to the end of the rear beam 22 or the front beam 21. The first end of the first wiring harness 511 passes through the through hole of the first axial support 24 and is connected to the first control module of the controller assembly 7. (See the second end for reference.) Figure 14 , Figure 16 and Figure 18 As shown, a fixed shaft 26 is provided, which is inserted into the second end of the drum 32. The drum 32 can rotate relative to the fixed shaft 26. A second shaft-side bracket 25 is also provided, which has a built-in insert 251. A section of the fixed shaft 26 that is left outside the drum 32 is fixed to the built-in insert 251. Then, the fixed shaft 26 is fixed to the other end of the rear beam 22.

[0064] After the drum 32 is installed, the extended moving end is fixed to the installed flexible lead screw 41.

[0065] Regarding the metal wire 531, a straight structure can be adopted, such as... Figure 11 and Figure 12 As shown, each of these straight metal wires 531 extends along the tangential direction of the outer periphery of the mandrel-shaped structure 52. A curved structure can also be used, such as... Figure 13 As shown, each of the curved metal wires 531 is radially arranged toward the mandrel-shaped structure 52 and has an elastic extension range, so as to ensure that when the mandrel-shaped structure 52 rotates relative to the hollow cylindrical structure 51, the metal wire 531 can abut against the outer periphery of the mandrel-shaped structure 52, while not affecting the rotation of the mandrel-shaped structure 52.

[0066] In the embodiment of the conductive brush employing a straight metal wire 531, such as Figure 9 and Figure 12As shown, the hollow cylindrical structure 51 is formed by a first arc-shaped shell 512 and a second arc-shaped shell 513. The metal wires 531 of the conductive brush 53 are divided into two groups and arranged on the inner walls of the first arc-shaped shell 512 and the second arc-shaped shell 513, respectively. When the first arc-shaped shell 512 and the second arc-shaped shell 513 are in the enclosed state, the two groups of metal wires 531 are staggered and arranged opposite each other. More preferably, each group of metal wires 531 is divided into two rows arranged on the inner wall of the corresponding first arc-shaped shell 512 or the second arc-shaped shell 513, and the two rows of metal wires 531 are inclined towards each other, so that the two rows of metal wires 531 on each arc-shaped limiting shell (first arc-shaped shell 512 or second arc-shaped shell 513) intersect each other. Or as... Figures 11-13 As shown, the two rows of metal wires 531 in the first arc-shaped limiting housing 512 intersect with the two rows of metal wires 531 in the second arc-shaped limiting housing 513. The two rows of metal wires 531 in the first arc-shaped limiting housing 512 are clamped one-to-one on opposite sides of the upper part of the outer wall of the spindle-shaped structure 52, and the two rows of metal wires 531 in the second arc-shaped limiting housing 513 are clamped one-to-one on opposite sides of the lower part of the outer wall of the spindle-shaped structure 52. In short, the two sets of four rows of metal wires 531 form a channel for clamping and contacting the spindle-shaped structure 52.

[0067] In some preferred embodiments, such as Figure 8 and Figure 9 As shown, the hollow cylindrical structure 51 is divided axially into an intermediate cylinder 514 for connection / contact of the elastic conductive structure, and two limiting cylinders 515 located at both ends of the intermediate cylinder 514 to prevent the mandrel-shaped structure 52 from moving axially and radially relative to the hollow cylindrical structure 51. Alternatively, the mandrel-shaped structure 52 is divided axially into an intermediate section 523 for connection to the first end of the second wire harness 521 and for contact / connection of the elastic conductive structure, and two limiting sections 524 located at both ends of the intermediate section 523 to prevent the mandrel-shaped structure 52 from moving axially and radially relative to the hollow cylindrical structure 51. Alternatively, the hollow cylindrical structure 51 and the spindle-shaped structure 52 in the segmented form described above can be used simultaneously. The diameters of the two limiting cylinders 515 are adapted to the diameters of the two limiting segments 524, and the outer ends of the two limiting cylinders 515 are formed with flanges to block the outer ends of the two limiting segments 524, so as to prevent the spindle-shaped structure 52 from moving axially and radially, and to ensure reliable contact between the elastic conductive structure and the spindle-shaped structure 52.

[0068] Regarding the driving of the curtain 31 by the drive assembly 4, please refer to [link / reference]. Figures 19-23As shown, the flexible lead screw 41 is a threaded flexible shaft. The drive assembly 4 includes a motor 42 mounted on the frame assembly 2 and a gear 43 fixedly connected to the output shaft of the motor 42. There are two flexible lead screws 41, and the first ends of the two flexible lead screws 41 are parallel and meshed with opposite sides of the gear 43. The second ends of the two flexible lead screws 41 are respectively formed with flexible shaft rubber coating 411, and are connected to both sides of the moving end of the curtain 31 through the flexible shaft rubber coating 411. Slide rails are formed on both sides of the frame assembly 2, and the two flexible shaft rubber coatings 411 are slidably engaged with the two slide rails respectively. Specifically, the two side rails are zigzag grooves, formed on the inner sides of the two side beams 23 respectively. The outer sides of the two flexible shaft rubber-coated 411 form zigzag protrusions adapted to the groove structure. Through the cooperation of the zigzag grooves and protrusions, the flexible shaft rubber-coated 411 can only slide along the extension direction of the rail, and will not deviate in the direction perpendicular to the rail. The inner sides of the two flexible shaft rubber-coated 411 are fixedly connected to both sides of the moving end of the curtain 31, so that the curtain 31 can be smoothly pulled. To facilitate the fixed connection of the two flexible shaft rubber-coated 411 to the moving end, [further details are needed]. Figure 5 As shown, a pull plate 312 is connected to the moving end, and two flexible shafts with rubber coatings 411 are respectively fixed to both ends of the pull plate 312. A steel wire 311 is sewn inside the moving end, and the steel wire 311 is used to fix the moving end to the two flexible shafts with rubber coatings 411, thereby achieving the fixation of the moving end to the two flexible shafts with rubber coatings 411. Preferably, as shown... Figure 20 and Figure 22 As shown, the drive assembly 4 has a limiting pad 44 fixed on each side of the gear 43 to cooperate with the gear 43 to clamp the corresponding lead screw 41 and prevent the lead screw 41 from disengaging from the gear 43. The limiting pad 44 is preferably made of wear-resistant material.

[0069] The driving principle of the drive assembly 4 is as follows: Taking the roller 32 mounted on the rear beam 22 and the drive assembly 4 and controller assembly 7 mounted on the front beam 21 as an example, the unfolding of the curtain 31 is achieved by the motor 42 driving the gear 43 to rotate, which in turn drives the first ends of the two flexible lead screws 41 to move relative to each other, so that the two flexible shafts with rubber coatings 411 move synchronously along the direction of vehicle travel (i.e., Figure 19 The middle arrow indicates the direction of movement, which in turn moves the moving end of the curtain 31 from the tail end to the head end, thus unfolding the curtain 31. The fully unfolded state is as follows: Figure 14As shown. Regarding the winding of the curtain fabric 31, the motor 42 drives the gear 43 to rotate in the opposite direction, which in turn drives the first ends of the two flexible lead screws 41 to move in the opposite direction, so that the two flexible shafts with rubber coatings 411 move synchronously in the reverse direction of the car, thereby pushing the moving end of the curtain fabric 31 from the first end to the last end, thus realizing the winding of the curtain fabric 31. However, it should be noted that since the flexible lead screw 41 is a flexible shaft, in order to avoid bending and deformation when the flexible shaft pushes the curtain fabric 31, in this embodiment, refer to Figures 14-18 As shown, the roller blind also includes an elastic element 6, installed between the frame assembly 2 and the roller 32. The elastic element 6 applies a restoring force to the roller 32, and in the reset state, the curtain 31 returns from the unfolded state to the rolled-up state. In other words, when the drive assembly 4 drives the curtain 31 to roll up, the elastic element 6 can provide a reverse force to the roller 32, thereby causing the curtain 31 to pull the two flexible shafts 411 in the opposite direction, so that the two flexible leads 41 can remain in a taut state and prevent them from bending and deforming. Regarding the elastic element 6, in this embodiment, the elastic element 6 is a torsion spring, which is sleeved between the roller 32 and the fixed shaft 26, and one end of the elastic element 6 is fixedly connected to the fixed shaft 26 and the other end is fixedly connected to the roller 32.

[0070] Regarding the principle of this roller shutter transmitting current and signals through rotational contact, in conjunction with... Figure 24 As shown, the vehicle provides signals and current to the controller assembly 7, which then transmits them to the first wiring harness 511 of the hollow cylindrical structure 51. The first wiring harness 511 and the second wiring harness 521 of the spindle structure 52 are electrically connected through the elastic conductive structure, and the second wiring harness 521 transmits the current and signals to the flexible circuit structure 34. It should be noted that during the process of the curtain 31 being driven to unfold, the roller 32 rotates accordingly. Since the bent section 5211 of the second wiring harness 521 is locked with the slot 321 of the roller 32, the second wiring harness 521 will drive the spindle structure 52 to rotate relative to the hollow cylindrical structure 51 as the roller 32 rotates. Furthermore, under the action of the elastic conductive structure, the second wiring harness 521 of the spindle structure 52 and the first wiring harness 511 of the hollow cylindrical structure 51 remain in an electrical state, so that the transmission of signals and current can still be achieved during the process of the curtain 31 being driven to unfold.

[0071] See Figure 25As shown, for larger car roofs, to achieve a starry sky effect across the entire roof, the size of the roller blind also increases. Therefore, a single flexible circuit structure 34 built into the curtain 31 may not be sufficient, requiring multiple flexible circuit structures 34 to be spliced ​​together. However, considering that the chip 341 of the flexible circuit structure 34 cannot be rolled up, the chip 341 can only be positioned at the beginning or end of the curtain 31. Thus, when two rows of flexible circuit structures 34 need to be spliced ​​along the direction of vehicle travel, for the chip 341 positioned at the end, the aforementioned method of setting a rotating contact structure (composed of a hollow cylindrical structure 51, a spindle-shaped structure 52, and an elastic conductive structure) at the end can be used to transmit current and signals. However, for the chip 341 positioned at the beginning, the rotating contact structure cannot transmit current and signals. Based on this, the present invention also provides another preferred embodiment, which utilizes the rotational contact structure described above to transmit current and signals to the chip 341 located at the tail end. Simultaneously, it adds a docking structure to transmit current and signals to the chip 341 located at the head end. The controller assembly 7 further includes a third control module for transmitting current and signals to the chip 341 located at the head end. This third control module is integrated with the first and second control modules and is jointly fixed to the frame assembly 2 at the other end opposite the drum 32 (in this embodiment, corresponding to the front beam 21).

[0072] Further reading Figure 2 , Figure 3 , Figure 5 as well as Figures 27-29As shown, the docking structure includes a female connector assembly 55 and a male connector assembly 54. One of the female connector assembly 55 and the male connector assembly 54 is mounted on the frame assembly 2 at the other end opposite to the drum 32 and is electrically connected to the controller assembly 7. The other of the female connector assembly 55 and the male connector assembly 54 is mounted on the moving end of the curtain 31 and is electrically connected to the flexible circuit structure 34. When the curtain 31 is in the unfolded state, the male connector assembly 54 contacts the female connector assembly 55 to achieve electrical connection, and when the curtain 31 is in the retracted state, it disconnects from the female connector assembly 55. In this embodiment, the chip 341 at the head end is located at the moving end of the curtain 31. The male connector assembly 54 is fixedly installed at the moving end of the curtain 31 by the male connector assembly bracket 313. The number of male connector assemblies 54 is adapted to the number of chips 341 located at the moving end, and they are connected one-to-one. The side of the male connector assembly 54 facing the female connector assembly 55 is provided with a plug 541. The two ends of the male connector assembly bracket 313 are fixed to the two flexible shafts with rubber coating 411 by the second mounting nails 82, thereby realizing its fixation to the moving end. The female connector assembly 55 is fixed to the other end of the frame assembly 2 opposite to the drum 32 (i.e., the front beam 21) and is electrically connected to the controller assembly 7 (i.e., the third control module). The number of female connector assemblies 55 is the same as the number of male connector assemblies 54, and their positions are directly opposite each other. The side of each female connector assembly 55 facing the male connector assembly 54 has a corresponding insertion port 551 for the plug 541. When the moving end of the curtain 31 moves to the beginning of the frame assembly 2 as it unfolds, the plugs 541 of each male connector assembly 54 automatically insert into the corresponding insertion ports 551 of each female connector assembly 55. The female connector assembly 55 transmits the current and signals provided by the controller assembly 7 to the male connector assembly 54 to realize the transmission of current and signals to the chip 341 located at the beginning. Figure 14 and Figure 27 As shown. The chip 341 located at the tail end still transmits current and signals through the aforementioned rotating contact structure. Further details are omitted here. This implementation overcomes the limitation of the rotating contact structure, which can only transmit current and signals at the tail end. It is suitable for multi-panel spliced ​​curtains 31 in two columns. However, it should be noted that with this structure, when the curtain 31 is unfolded, the flexible circuit structure 34 in the tail column can display starry sky effects during the unfolding process, while the flexible circuit structure 34 in the first column can only display starry sky effects after the male connector assembly 54 and the female connector assembly 55 are connected (i.e., after the curtain 31 is fully unfolded).

[0073] It should be noted that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the disclosed technical content. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0074] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model's technical solution. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the content of the present utility model's technical solution shall still fall within the scope of the present utility model's technical solution.

Claims

1. A vehicle roller blind, characterized in that include: The frame assembly can be installed on the car roof; A curtain assembly includes a curtain and a roller, wherein the curtain has a built-in flexible circuit structure and the roller is rotatably connected to one end of the frame assembly to wind up and unwind the curtain; An electrical connection structure includes a hollow cylindrical structure and a spindle-shaped structure. One of the hollow cylindrical structure and the spindle-shaped structure is electrically connected to a controller assembly via a wiring harness. The other of the hollow cylindrical structure and the spindle-shaped structure is electrically connected to a flexible circuit structure via a wiring harness. The hollow cylindrical structure and the spindle-shaped structure are rotatable relative to each other and maintain electrical connection during relative rotation.

2. The vehicle roller blind of claim 1, wherein: One of the hollow cylindrical structure and the spindle structure is provided with an elastic conductive structure, and the hollow cylindrical structure and the spindle structure maintain electrical connection when they rotate relative to each other through the elastic conductive structure.

3. The vehicle roller blind of claim 2, wherein: The elastic conductive structure is configured as a conductive brush.

4. The vehicle roller blind of claim 3, wherein: The conductive brush includes a plurality of metal wires arranged on the inner wall of the hollow cylindrical structure.

5. The vehicle roller blind of claim 4, wherein: The metal wires are divided into multiple groups, and each group of metal wires is arranged along the axial direction of the hollow cylindrical structure.

6. The vehicle roller blind of claim 4, wherein: The outer periphery of the mandrel-shaped structure is provided with a plurality of grooves along the axial direction. The grooves are arranged to surround the mandrel-shaped structure so that the plurality of metal wires can overlap accordingly, thereby restricting the axial movement of the hollow cylindrical structure when it rotates relative to the mandrel-shaped structure.

7. The vehicle roller blind of claim 2, wherein: The hollow cylindrical structure is divided axially into an intermediate cylinder for connection / contact of the elastic conductive structure, and two limiting cylinders located at both ends of the intermediate cylinder to prevent the mandrel-shaped structure from moving axially and radially relative to the hollow cylindrical structure; and / or the mandrel-shaped structure is divided axially into an intermediate section for contact / connection of the elastic conductive structure, and two limiting sections located at both ends of the intermediate section to prevent the mandrel-shaped structure from moving axially and radially relative to the hollow cylindrical structure.

8. The vehicle roller blind as described in claim 1, characterized in that, The hollow cylindrical structure is formed by two arc-shaped shells.

9. The vehicle roller shade of claim 1, wherein: The reel has slots for the wire harness to extend out and connect the flexible circuit structure to the electrical connection structure.

10. The vehicle roller blind of claim 1, wherein, The electrical connection structure is located inside one end of the drum, and the end of the drum is also provided with a limiting sleeve. The limiting sleeve is fixedly connected to the hollow cylindrical structure or the mandrel structure to prevent the electrical connection structure from moving axially.

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