Sun-shading curtain structure, vehicle body and vehicle

Abstract

The invention provides a sunshade curtain structure, a vehicle body and a vehicle, relates to the technical field of vehicles, and aims to solve the technical problem that a sunshade curtain structure in the height direction of the vehicle occupies a large space in the related technology. The sunshade curtain structure comprises curtain cloth, a reel, a guide rail assembly and a folding mechanism. The guide rail assemblies are arranged on the two opposite sides of the curtain cloth, the reel is suitable for winding or unfolding the curtain cloth, the curtain cloth comprises cloth and edge strips connected to the cloth, and the arrangement direction of the edge strips and the cloth is perpendicular to the extending direction of the guide rail assemblies; the folding mechanism is used for folding the edge strip and the cloth from a folded state to a staggered state when the curtain cloth is rolled by the rolling shaft, and in the staggered state, the orthographic projection of the edge strip on the plane where the cloth is located is located outside the cloth.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, in particular to a sunshade structure, a vehicle body and a vehicle. BACKGROUND

[0002] For a vehicle, the height space in the vehicle is very important, and increasing the height space in the vehicle can improve the comfort of the driver and passengers. The sunshade structure is an important part of the sunroof, which can move back and forth to adjust the degree of sunlight on the eyes, avoid accidents, have a good cooling effect, and also protect the instrument panel and leather seats.

[0003] At present, in order to make the appearance of the car beautiful and the passenger cabin space, a panoramic sunroof scheme is adopted, and even the most extreme heat-insulating sunroof glass cannot achieve the sunshade effect of the physical sunshade structure. However, the setting of the traditional electric sunshade structure will cause the head space of the passenger to be compressed.

[0004] The sunshade assembly in the related art comprises a glass, a rim, two roller shaft mounting portions, two support rod mounting portions and a fixing device, the rim is fixed to the glass; the two roller shaft mounting portions are used for mounting roller shafts, and the two roller shaft mounting portions are respectively located on two sides of the glass; the two support rod mounting portions are used for mounting support rods, and the two support rod mounting portions are respectively located on the two sides of the glass, and the support rod mounting portion is arranged at intervals with the roller shaft mounting portion on the corresponding side; the fixing device is embedded in the rim, and the fixing device comprises two oppositely arranged roller shaft fixing members and two oppositely arranged support rod fixing members; the roller shaft fixing member is arranged on the roller shaft mounting portion; and the support rod fixing member is arranged on the support rod mounting portion. In the related art, the sunshade frame is cancelled, the fixing device of the sunshade roller shaft and the support rod is integrated into the rim, the locking points are reduced, the overall thickness of the sunroof is reduced, the height space in the vehicle is increased, and the driving and riding comfort is improved. However, the curtain cloth of the sunshade still occupies a large amount of Z-direction (i.e. height direction) space after being rolled up, and therefore, how to reduce the occupied space of the sunshade structure in the height direction of the vehicle has become one of the technical problems to be solved. SUMMARY

[0005] In view of the above deficiencies of the prior art, the present application aims to provide a sunshade structure, a vehicle body and a vehicle, which aims to solve the technical problem of large occupied space of the sunshade structure in the height direction of the vehicle in the prior art.

[0006] In a first aspect, the embodiments of the present application provide a sunshade curtain structure, which comprises: a curtain cloth, a winding shaft, a guide rail assembly and a folding mechanism. The guide rail assembly is arranged on opposite sides of the curtain cloth. The winding shaft is adapted to wind or unwind the curtain cloth. The curtain cloth comprises: a cloth and a side strip connected to the cloth. The arrangement direction of the side strip is perpendicular to the extension direction of the guide rail assembly. The folding mechanism is used to fold the side strip and the cloth from a folded state to a misaligned state when the winding shaft winds the curtain cloth. In the misaligned state, the orthographic projection of the side strip on the plane of the cloth is located outside the cloth.

[0007] According to the above technical means, the folding mechanism can fold the side strip and the cloth from the folded state to the misaligned state during winding of the winding shaft. In the misaligned state, the orthographic projection of the side strip on the plane of the cloth is located outside the cloth. Therefore, the side strip is no longer arranged in the same plane perpendicular to the vehicle height direction and is staggered in space by misalignment, without reserving too much space for the superimposed thickness, thereby reducing the overall space occupation of the sunshade curtain structure along the vehicle height direction.

[0008] In a possible embodiment, the sunshade curtain structure further comprises: a front seat frame, which is connected to one end of the guide rail assembly in the front seat frame, and a containing space is formed in the front seat frame. The winding shaft is rotatably arranged in the containing space. A curtain cloth inlet is formed in the front seat frame and communicates with the containing space. The folding mechanism is connected to the front seat frame and arranged at the curtain cloth inlet.

[0009] According to the above technical means, since the folding mechanism is connected to the front seat frame and arranged at the curtain cloth inlet, the folding of the curtain cloth from the folded state to the misaligned state can be completed immediately at the inlet position before entering the containing space, without additional transmission components, thereby reducing structural redundancy. At the same time, the front seat frame provides a mounting basis for the folding mechanism, thereby avoiding the folding mechanism from deviating due to vibration, ensuring that the folding mechanism can stably fold the side strip and the cloth to the misaligned state when the curtain cloth passes through the inlet, and ensuring that the side strip and the cloth are always arranged staggered when wound on the winding shaft, thereby avoiding the superimposed thickness of the winding, and being conducive to reducing the height dimension of the containing space.

[0010] In a possible embodiment, the front seat frame comprises: a transition part and an expansion part. The transition part is connected between the expansion part and the guide rail assembly. A first sliding groove is formed in the transition part and is adapted to pass the curtain cloth in the folded state. The folding mechanism is arranged in the expansion part.

[0011] Based on the aforementioned technical means, after the curtain fabric is output from the guide rail assembly, it can directly pass through the transition section via the first slide groove. This avoids the curtain fabric getting stuck at the connection between the guide rail assembly and the front frame due to path deviation, ensuring that the curtain fabric is always transported to the widening section in a neat folded state. The folding mechanism is located in the widening section, which provides suitable installation and operating space for the folding mechanism. Since the folding mechanism needs a certain amount of space to complete the misalignment of the edge strip and the fabric when folding the curtain fabric from a folded state to a staggered state, the widening section provides sufficient operating margin for this folding action through its relatively larger internal space. This avoids interference between the edge strip, the fabric, and the inner wall of the front frame during the folding process, ensuring that the folding action is smooth and precise.

[0012] In one possible embodiment, the folding mechanism includes a connecting part and a guide arc surface. The connecting part is connected to the widened part, and the guide arc surface includes a first guide segment and a spiral guide segment. The first guide segment is located between the edge strip and the fabric in the folded state, and the spiral guide segment is used to guide the edge strip to fold from the folded state to the misaligned state.

[0013] Based on the aforementioned technical methods, direct folding can easily lead to problems such as adhesion and misalignment. However, the first guide section, embedded between the edge strip and the fabric, gently separates them during curtain movement, avoiding interference and jamming during folding. This ensures the folding action remains regular from the beginning and eliminates the need to increase the width of the expansion section to accommodate the forced separation of the edge strip and fabric, further optimizing space utilization within the expansion section. The spiral guide section, through continuous curvature changes, allows the edge strip to slowly complete the folding action during movement, preventing deformation or wrinkling of the fabric due to sudden changes in folding angle. This ensures that the orthographic projection of the folded edge strip onto the fabric plane accurately falls outside the fabric, achieving a stable misalignment.

[0014] In one possible embodiment, the first guide section is at least partially disposed within the groove.

[0015] According to the above technical means, since the first guide section is embedded in the slide groove, the increase in the size of the widened part along the vehicle height direction caused by the independent installation of the first guide section is avoided, ensuring that the overall front seat frame still maintains a compact structure.

[0016] In one possible embodiment, the guide rail includes: a first guide rail and a second guide rail, which are respectively disposed on opposite sides of the curtain fabric; the side strip includes: a first side strip and a second side strip, which are disposed on opposite sides of the fabric, the first side strip being slidably disposed on the first guide rail and the second side strip being slidably disposed on the second guide rail; the folding mechanism includes: a first folding mechanism and a second folding mechanism, the first folding mechanism being adapted to fold the first side strip and the fabric from a folded state to a misaligned state, and the second folding mechanism being adapted to fold the second side strip and the fabric from a folded state to a misaligned state.

[0017] According to the aforementioned technical means, the first and second guide rails are respectively located on opposite sides of the curtain fabric, and the first and second side strips are correspondingly slidably disposed within the two guide rails. This symmetrical layout ensures that both sides of the curtain fabric are constrained and guided by the guide rails, preventing the curtain fabric from shifting or tilting due to uneven force on one side during rolling or unrolling, thus ensuring that the curtain fabric always maintains a flat posture and moves along the preset path. Simultaneously, the sliding cooperation between the side strips and the guide rails makes the movement resistance on both sides of the curtain fabric more balanced, reducing structural damage caused by jamming on one side.

[0018] In addition, folding the first and second side strips simultaneously ensures that the side strips on both sides of the curtain are simultaneously removed from the projection range of the plane on which the fabric is located. This avoids uneven thickness of the curtain on both sides due to the lag of folding on one side, thereby preventing eccentricity and shaking when the roller is wound, and ensuring the overall structural compactness after winding.

[0019] In one possible embodiment, the sunshade structure further includes: a front frame, which is connected to one end of the guide rail assembly and has a receiving space formed therein, and the roller is rotatably disposed in the receiving space; the front frame is engaged with the first guide rail and the second guide rail.

[0020] Based on the aforementioned technical methods, compared to the method of connecting the front seat frame to the first and second guide rails via screws, the connection reliability can be enhanced, while saving head space at the front safety handles. In addition, the snap-fit ​​structure simplifies the assembly process, avoids component size redundancy caused by drilling, screwing, and other operations, and eliminates the need to reserve installation space for connectors, further reducing the structural thickness along the vehicle height direction at the connection between the front seat frame and the guide rails.

[0021] In one possible embodiment, the sunshade structure further includes a rear crossbeam, which is connected to the first guide rail and the second guide rail respectively, and the rear crossbeam is located on the side of the guide rail assembly away from the front seat frame.

[0022] Based on the aforementioned technical means, since the rear crossbeam connects to the guide rails on both sides, it indirectly constrains the end trajectory of the curtain fabric. Therefore, when the curtain fabric unfolds to the point where the guide rails are away from the front seat frame, the rear crossbeam, by fixing the end position of the guide rails, ensures that the side strips of the curtain fabric always slide precisely along the guide rails, preventing the curtain fabric from becoming skewed or wrinkled after unfolding due to guide rail end misalignment. Simultaneously, the presence of the rear crossbeam makes the force on the curtain fabric more balanced in the unfolded state, ensuring consistent sliding resistance on both side strips, reducing partial wear on the curtain fabric, and eliminating the need for additional adjustment space to correct guide rail misalignment, further optimizing space utilization along the vehicle's height.

[0023] In one possible embodiment, the rear crossbeam is threadedly connected to the first guide rail and the second guide rail.

[0024] Based on the aforementioned technical means, the rear crossbeam is threadedly connected to the first and second guide rails. Compared to snap-fit ​​connections, threaded connections offer stronger self-locking properties, effectively resisting lateral tension or vibration impacts on the guide rails during fabric sliding. This prevents the rear crossbeam and guide rails from loosening or shifting during long-term use. It ensures the guide rail assembly maintains a neat posture, eliminating the need to compensate for insufficient connection strength by increasing guide rail wall thickness or adding extra reinforcement structures. This avoids increased space occupation along the vehicle height direction due to additional reinforcement, maintaining a compact structure while improving stability.

[0025] In one possible embodiment, the edge strip is connected to the fabric by welding. Based on the aforementioned technical methods, welding, by melting at high temperatures to bond the edge strip to the fabric, provides a stronger connection and is less prone to detachment compared to sewing or bonding. During the long-term rolling and unrolling of the curtain fabric, the edge strip repeatedly slides and rubs against the guide rail and comes into contact with the folding mechanism, bearing stress. Welded connections effectively resist these external forces, preventing the edge strip from separating from the fabric and causing damage to the curtain. Furthermore, this connection method eliminates the need for additional reinforcement structures (such as edging), avoiding the increase in curtain thickness due to reinforcement, and preventing the accumulation of thickness during rolling that would occupy more space along the vehicle's height, thus maintaining a compact structure while ensuring durability.

[0026] Secondly, this application provides a vehicle body, including a vehicle body and the sunshade structure described in the first aspect above, wherein the vehicle body is provided with a sunroof, and the sunshade structure is disposed in the sunroof.

[0027] Thirdly, embodiments of this application also provide a vehicle, including: the sunshade structure described in the first aspect, or the vehicle body described in the second aspect.

[0028] The effects of the second and third aspects can be referred to the description of the first aspect above, and will not be repeated in detail in the embodiments of this application. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this application or the background art, the accompanying drawings used in the embodiments of this application will be described below.

[0030] Figure 1 This is one of the cross-sectional views of a sunshade curtain structure disclosed in an embodiment of this application; Figure 2 This is one of the partial schematic diagrams of a sunshade curtain structure disclosed in an embodiment of this application; Figure 3 This is a partial exploded view of a sunshade curtain structure disclosed in an embodiment of this application; Figure 4 This is a second partial schematic diagram of a sunshade curtain structure disclosed in an embodiment of this application; Figure 5 This is one of the structural schematic diagrams of a curtain fabric and a folding mechanism disclosed in an embodiment of this application; Figure 6 This is a second schematic diagram of the structure of a curtain and a folding mechanism in accordance with an embodiment of this application. Figure 7 This is the third schematic diagram of the structure of the curtain and the folding mechanism disclosed in the embodiments of this application; Figure 8 This is the fourth schematic diagram of the structure of the curtain and the folding mechanism disclosed in the embodiments of this application; Figure 9 This is a cross-sectional view of a curtain fabric at different positions within a folding mechanism, as disclosed in an embodiment of this application. Figure 10 This is a second cross-sectional view of a sunshade curtain structure disclosed in an embodiment of this application; Figure 11 The embodiments disclosed in this application Figure 10 A cross-sectional view along the AA direction; Figure 12 This is a third cross-sectional view of a sunshade curtain structure disclosed in an embodiment of this application; Figure 13 The embodiments disclosed in this application Figure 12 A magnified view of region A in the middle; Figure 14 The embodiments disclosed in this application Figure 12 A magnified view of region B in the middle.

[0031] Figure labels; 100-Shading curtain structure; 10-Curtain fabric; 11-Fabric; 12-Side strip; 20-rolls; 30 - Guide rail assembly; 31 - First guide rail; 32 - Second guide rail; 40 - Folding mechanism; 41 - Connecting part; 42 - Guide arc surface; 421 - First guide section; 422 - Spiral guide section; 50 - Front seat frame; 51 - Accommodation space; 52 - Curtain entrance; 53 - Transition section; 531 - First slide rail; 54 - Widening section; 60-Rear crossbeam; 70-Motor; 71-Slider assembly; 711-First slider; 72-Second slider; 72-Pull rod. Detailed Implementation

[0032] The terms "first," "second," etc., are used for descriptive purposes only and have no sequential or technical meaning, nor should they be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Directional terms used in this application, such as "upper," "lower," "front," "rear," "left," "right," "inner," and "outer," are merely for reference to the orientation shown in the accompanying drawings. The use of directional terms is for better and clearer explanation and understanding of this application, and does not indicate the orientation of the referred device or component in an actual application scenario.

[0033] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. "Fixed connection" refers to a connection where the relative positional relationship remains unchanged after connection. "Rotary connection" refers to a connection where the two parts can rotate relative to each other after connection. "Sliding connection" refers to a connection where the two parts can slide relative to each other after connection.

[0034] In the embodiments of this application, "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0035] The terms "parallel" and "perpendicular" are relative to the current technological level, not absolute mathematical definitions. Slight deviations are permissible; approximations of parallelism or perpendicularity are acceptable. For example, "A and B are parallel" means that A and B are parallel or approximately parallel, with the angle between them ranging from 0 to 5 degrees. Similarly, "A and B are perpendicular" means that A and B are perpendicular or approximately perpendicular, with the angle between them ranging from 85 to 95 degrees.

[0036] The term "electrical connection" refers to the flow of current or signal from one conductor to another. An electrical connection between A and B means that current or signal can flow from A to B and vice versa. This connection includes direct and indirect electrical connections. A direct electrical connection between A and B means that A and B are physically connected. An indirect electrical connection between A and B means that A and B are connected via C, where C can be at least one wire or device.

[0037] The embodiments of this application are described below with reference to the accompanying drawings.

[0038] This application provides a vehicle, which may be, but is not limited to, a pure electric vehicle (PEV / BEV), a hybrid electric vehicle (HEV), a range-extended electric vehicle (REEV), a plug-in hybrid electric vehicle (PHEV), or a new energy vehicle.

[0039] The vehicle in this application embodiment includes a vehicle body. The vehicle body includes a sunshade structure 100 and a car frame, wherein a sunroof is provided on the car frame, and the sunshade assembly is disposed at the sunroof. The car frame is the core load-bearing and functional carrier of the vehicle, and is a key part to ensure vehicle driving safety, ride comfort, and the realization of specific purposes. It is not only a space for accommodating passengers or cargo 51, but also the basic framework integrating various vehicle systems (such as power, chassis, electrical, etc.).

[0040] In some embodiments of this application, please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 The sunshade structure 100 may include: curtain fabric 10, roller 20, guide rail assembly 30 and folding mechanism 40.

[0041] The guide rail assembly 30 is located on opposite sides of the curtain fabric 10, and the roller 20 is adapted to wind up or unwind the curtain fabric 10. The curtain fabric 10 includes a fabric 11 and a side strip 12 connected to the fabric 11. The arrangement direction of the side strip 12 and the fabric 11 is perpendicular to the extending direction of the guide rail assembly 30. A slide rail is provided inside the guide rail assembly 30, and the side strip 12 is slidably disposed within the slide rail.

[0042] In addition, the folding mechanism 40 is used to fold the side strip 12 and the fabric 11 from a folded state to a misaligned state when the roller 20 rolls up the curtain 10. In the misaligned state, the orthographic projection of the side strip 12 on the plane of the fabric 11 is outside the fabric 11.

[0043] It should be noted that in the traditional structure without the folding mechanism 40, the side strip 12 and the fabric 11 usually remain overlapping or aligned when rolled up. The thickness of the side strip 12 and the thickness of the fabric 11 are superimposed in the vehicle height direction, resulting in a larger overall thickness after rolling up. Consequently, the sunshade structure 100 needs to occupy more space in the vehicle height direction.

[0044] Alternatively, the roller 20 can be made of aluminum alloy 6061. In this way, compared with the roller 20 being made of aluminum alloy 6063 in related technologies, the diameter of the roller 20 can be reduced while ensuring the strength of the roller 20, which helps to reduce the space occupied by the sunshade structure 100 along the vehicle height direction.

[0045] In this embodiment, the folding mechanism 40 can fold the edge strip 12 and the fabric 11 from a folded state to a staggered state during the process of the roller 20 retracting the curtain fabric 10. In the staggered state, the orthographic projection of the edge strip 12 onto the plane of the fabric 11 is outside the fabric 11. This means that the edge strip 12 no longer overlaps with the fabric 11 in the same plane perpendicular to the vehicle height direction, but is spatially staggered through misalignment. There is no need to reserve additional height space required for the edge strip 12 and the fabric 11 to overlap. Correspondingly, the design of the guide rail assembly 30 can also be optimized based on a more compact retraction size, without reserving too much space for the stacking thickness, thereby reducing the overall space occupied by the sunshade structure 100 along the vehicle height direction.

[0046] Please refer to some embodiments of this application. Figure 1 , Figure 2 , Figure 3 and Figure 4 The sunshade structure 100 also includes a front frame 50, which is connected to one end of the guide rail assembly 30, and has a receiving space 51 formed within it, in which the roller 20 is rotatably disposed. Thus, the receiving space 51 formed within the front frame 50 provides an installation area for the roller 20, and the roller 20 is rotatably disposed within the receiving space 51.

[0047] It should be noted that in traditional sunshade structures 100, the roller 20 often requires a separate mounting bracket. The connection between the mounting bracket and the guide rail assembly 30 is prone to spatial misalignment, resulting in the need for additional installation clearance along the vehicle height direction, increasing the overall space occupation. In this application, the front seat bracket 50 is directly connected to one end of the guide rail assembly 30, eliminating the need for an additional independent bracket for the roller 20 and reducing the assembly clearance between components. At the same time, the enclosed storage space 51 for the roller 20 avoids the need for protective space for exposed roller 20, further compressing the space occupation along the vehicle height direction, making the sunshade structure 100 more suitable for the compact installation environment inside the vehicle.

[0048] In addition, a curtain 10 entrance communicating with the receiving space 51 is formed on the front seat frame 50, and a folding mechanism 40 is connected to the front seat frame 50 and is located at the curtain 10 entrance.

[0049] In one possible structural design, the folding mechanism 40 can be connected to the front seat frame 50 via a threaded connection. For example, the folding mechanism 40 can be connected to the front seat frame 50 via threaded fasteners such as screws or bolts. In another possible structural design, the folding mechanism 40 can also be connected to the front seat frame 50 by means of snap-fit, welding, or riveting, etc., which is not limited in this embodiment.

[0050] In this way, since the folding mechanism 40 is connected to the front frame 50 and located at the entrance of the curtain 10, the curtain 10 can be folded from a folded state to a staggered state at the entrance position before entering the receiving space 51, without the need for additional transmission components, thus reducing structural redundancy. At the same time, the front frame 50 provides a mounting base for the folding mechanism 40, thereby preventing the folding mechanism 40 from shifting due to vibration. This ensures that when the curtain 10 passes through the entrance, the folding mechanism 40 can stably fold the edge strip 12 and the fabric 11 to a staggered state, ensuring that the edge strip 12 and the fabric 11 remain staggered when subsequently wound onto the roller 20, avoiding the accumulation of winding thickness and helping to reduce the height of the receiving space 51.

[0051] Please refer to some embodiments of this application. Figure 1 , Figure 2 , Figure 3 and Figure 4 The front seat frame 50 includes a transition section 53 and a widening section 54, wherein the transition section 53 connects the widening section 54 and the guide rail assembly 30. A first groove 531 is formed in the transition section 53, which is adapted to allow the folded curtain 10 to pass through. The dimension of the widening section 54 along the width direction of the curtain 10 is larger than that of the transition section 53 along the width direction of the curtain 10. This ensures that the widening section 54 passes through a relatively larger internal space, providing sufficient space for the folding action of the folding structure and avoiding interference between the side strip 12, the fabric 11 and the inner wall of the front seat frame 50 during the folding process.

[0052] In one possible structural design, the transition section 53 and the widening section 54 can be an integral structure. Since the transition section 53 and the widening section 54 are integrally formed, the connection gaps and assembly interfaces between them are eliminated. Compared to a split structure that requires splicing with connectors, the integral structure ensures that the front seat frame 50 has greater overall rigidity and can better resist the impact and vibration when the curtain 10 is rolled up.

[0053] In another possible structural design, the transition section 53 and the widening section 54 can be separate structures. In this case, during long-term use, the first groove 531 of the transition section 53 is prone to wear due to friction with the curtain 10, causing the curtain 10 to become stuck; while the widening section 54 may deform due to long-term stress on the folding mechanism 40. If it were a single structure, the entire front frame 50 would need to be replaced, while the separate structure only requires removing the connectors of the damaged parts and replacing the corresponding parts to restore function. This not only reduces maintenance costs but also reduces the number of discarded parts, shortens maintenance downtime, and improves the reliability of the sunshade structure 100.

[0054] In this way, after the curtain fabric 10 is output from the guide rail assembly 30, it can directly pass through the transition section 53 via the first slide groove 531, avoiding the jamming of the curtain fabric 10 at the junction of the guide rail assembly 30 and the front frame 50 due to path deviation, ensuring that the curtain fabric 10 is always transported to the widening section 54 in a neat folded state. The folding mechanism 40 is located in the widening section 54, which provides suitable installation and operating space for the folding mechanism 40. Since the folding mechanism 40 needs a certain amount of space to complete the positional misalignment of the edge strip 12 and the fabric 11 when folding the curtain fabric 10 from the folded state to the misaligned state, the widening section 54 provides sufficient leeway for this folding action through its relatively larger internal space, avoiding interference between the edge strip 12, the fabric 11 and the inner wall of the front frame 50 during the folding process, ensuring that the folding action is smooth and accurate.

[0055] In one possible embodiment, please refer to Figure 3 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9 The folding mechanism 40 includes a connecting part 41 and a guide arc surface 42. The connecting part 41 is connected to the widening part 54. The guide arc surface 42 includes a first guide section 421 and a spiral guide section 422. The first guide section 421 and the spiral guide section 422 can be an integral structure, which makes the guide arc surface 42 smoother and facilitates smoother folding of the edge strip 12.

[0056] In addition, the first guide section 421 is located between the folded edge strip 12 and the fabric 11, and the spiral guide section 422 is used to guide the edge strip 12 from the folded state to the misaligned state.

[0057] In this way, if the folding is performed directly, problems such as adhesion and misalignment may occur. However, the first guide section 421 is embedded between the edge strip 12 and the fabric 11, which can gently separate the edge strip 12 and the fabric 11 during the movement of the curtain 10. This avoids the jamming caused by the interference between the edge strip 12 and the fabric 11 during folding, ensuring that the folding action remains regular from the beginning. At the same time, it eliminates the need to increase the space of the widening section 54 to accommodate the forced separation of the edge strip 12 and the fabric 11, further optimizing the space utilization efficiency within the widening section 54. The spiral guide section 422 can slowly complete the folding action of the edge strip 12 during the movement through continuous curvature changes, avoiding deformation of the edge strip 12 or wrinkles of the fabric 11 caused by sudden changes in the folding angle. This ensures that the orthographic projection of the folded edge strip 12 on the plane of the fabric 11 falls precisely outside the fabric 11, achieving a stable misalignment state.

[0058] In one possible embodiment, the first guide segment 421 is at least partially disposed within the first groove 531. In this way, since the first guide segment 421 is embedded in the first groove 531, the increased size of the widened portion 54 along the vehicle height direction caused by the independent installation of the first guide segment 421 is avoided, ensuring that the front seat frame 50 as a whole still maintains a compact structure.

[0059] In some embodiments of this application, please refer to Figure 10 The guide rail assembly 30 includes a first guide rail 31 and a second guide rail 32, which are respectively disposed on opposite sides of the curtain 10.

[0060] In addition, the side strip 12 includes a first side strip and a second side strip, which are disposed on opposite sides of the fabric 11. The first side strip is slidably disposed on the first guide rail 31, and the second side strip is slidably disposed on the second guide rail 32.

[0061] Similarly, the folding mechanism 40 includes a first folding mechanism and a second folding mechanism. The first folding mechanism is adapted to fold the first side strip and the fabric 11 from a folded state to a misaligned state, and the second folding mechanism is adapted to fold the second side strip and the fabric 11 from a folded state to a misaligned state.

[0062] In this way, the first guide rail 31 and the second guide rail 32 are respectively located on opposite sides of the curtain 10, and the first side strip and the second side strip are correspondingly slidably disposed within the two guide rails. This symmetrical layout ensures that both sides of the curtain 10 are constrained and guided by the guide rails, preventing the curtain 10 from shifting or tilting due to uneven force on one side during rolling or unrolling, ensuring that the curtain 10 always maintains a flat posture and moves along the preset path. Simultaneously, the sliding cooperation between the side strip 12 and the guide rails makes the movement resistance on both sides of the curtain 10 more balanced, reducing structural damage caused by jamming on one side.

[0063] In addition, folding the first and second side strips simultaneously ensures that the side strips 12 on both sides of the curtain 10 are simultaneously removed from the projection range of the plane where the fabric 11 is located, avoiding uneven thickness of the curtain 10 on both sides due to the lag of folding on one side, thereby preventing eccentricity and shaking when the roller 20 is wound, and ensuring the overall structural compactness after winding.

[0064] In some embodiments of this application, the sunshade structure 100 further includes: a front frame 50, which is connected to one end of the guide rail assembly 30 and has a receiving space 51 formed therein, and the roller 20 is rotatably disposed in the receiving space 51; the front frame 50 is engaged with the first guide rail 31 and the second guide rail 32.

[0065] It should be noted that, as Figure 10 and Figure 11 As shown, the front seat frame 50 can be engaged with the first guide rail 31 and the second guide rail 32 through the cooperation of a buckle and a bolt. For example, the front seat frame 50 and the guide rail assembly 30 are engaged at one end by a bolt and a buckle. The buckle is provided on the front seat frame, and the threaded part of the bolt extends into the buckle to achieve the engagement.

[0066] This design enhances connection reliability compared to the screw connection between the front seat frame 50 and the first guide rail 31 and the second guide rail 32, while also saving headroom at the front seat handles. Furthermore, the snap-fit ​​structure simplifies the assembly process, avoiding component size redundancy caused by drilling and screwing operations, and eliminates the need to reserve installation space for connectors, further reducing the structural thickness along the vehicle height at the connection point between the front seat frame 50 and the guide rails.

[0067] In some embodiments of this application, the sunshade structure 100 further includes a motor 70, a flexible shaft, a slider assembly 71, and a pull rod 72. The pull rod 72 is fixedly connected to the front end of the curtain 10 (i.e., the side near the front frame 50). Exemplarily, the pull rod 72 can be fixedly connected to the front end of the curtain 10 by adhesive bonding or riveting. The motor 70 is fixedly connected to the front frame 50. One end of the flexible shaft is connected to the motor 70 for transmission, and the other end is fixedly connected to the slider assembly 71. The slider assembly 71 is slidably disposed within the slide rail of the guide rail assembly 30 and is fixedly connected to the pull rod 72.

[0068] In one possible structural design, the flexible shaft may include a first flexible shaft and a second flexible shaft, and the slider assembly 71 includes a first slider 711 and a second slider 712. The first slider 711 is at least partially slidably disposed within the slide rail of the first guide rail 31, and the second slider 712 is at least partially slidably disposed within the slide rail of the second guide rail 32. The first slider 711 and the second slider 712 are located at opposite ends of the pull rod 72 and are both fixedly connected to the pull rod 72. One end of both the first and second flexible shafts is connected to the motor 70 for transmission, the other end of the first flexible shaft is connected to the first slider 711, and the other end of the second flexible shaft is connected to the second slider 712. Thus, when the motor 70 rotates, it pulls the first and second flexible shafts, thereby driving the first slider 711 and the second slider 712 to move, which in turn causes the pull rod 72 to move the curtain 10, facilitating the roller 20 to roll up the curtain 10.

[0069] In some embodiments of this application, the sunshade structure 100 further includes a rear crossbeam 60, which is connected to the first guide rail 31 and the second guide rail 32 respectively, and the rear crossbeam 60 is located on the side of the guide rail assembly 30 away from the front seat frame 50.

[0070] In this way, since the rear crossbeam 60 connects to the guide rails on both sides, it indirectly constrains the end trajectory of the curtain 10. Therefore, when the curtain 10 unfolds to the point where the guide rail is away from the front seat frame 50, the rear crossbeam 60, by fixing the end position of the guide rail, ensures that the side strips 12 of the curtain 10 always slide precisely along the guide rail, preventing the curtain 10 from becoming skewed or wrinkled after unfolding due to guide rail end misalignment. At the same time, the presence of the rear crossbeam 60 makes the force on the curtain 10 more balanced in the unfolded state, ensuring consistent sliding resistance of the side strips 12 on both sides, reducing localized wear on the curtain 10, and eliminating the need for additional adjustment space to correct guide rail misalignment, further optimizing space utilization along the vehicle height direction.

[0071] In some embodiments of this application, please refer to Figure 12 , Figure 13 and Figure 14 The rear crossbeam 60 is threadedly connected to the first guide rail 31 and the second guide rail 32. For example, the rear crossbeam 60 is fixedly connected to the first guide rail 31 and the second guide rail 32 by bolts.

[0072] In this way, the rear crossbeam 60 is threadedly connected to the first guide rail 31 and the second guide rail 32. Compared to snap-fit ​​connections, threaded connections offer stronger self-locking properties, effectively resisting lateral tension or vibration impacts on the guide rails when the curtain 10 slides, preventing loosening or displacement of the rear crossbeam 60 and guide rails during long-term use. This ensures that the guide rail assembly 30 always maintains a neat posture, eliminating the need to compensate for insufficient connection strength by increasing guide rail wall thickness or adding extra reinforcement structures. It also avoids increased space occupation along the vehicle height direction due to additional reinforcement, maintaining a compact structure while improving stability.

[0073] In some embodiments of this application, the edge strip 12 and the fabric 11 are connected by welding. This welding method, where the edge strip 12 and the fabric 11 are bonded together through high-temperature melting, provides a stronger connection and is less prone to detachment compared to sewing or gluing. During the long-term rolling and unrolling of the curtain 10, the edge strip 12 repeatedly slides and rubs against the guide rail and comes into contact with the folding mechanism 40, bearing stress. The welding connection effectively resists these external forces, preventing the edge strip 12 from separating from the fabric 11 and causing damage to the curtain 10. Furthermore, this connection method eliminates the need for additional reinforcement structures (such as edging), avoiding the increase in curtain 10 thickness due to reinforcement, and preventing the accumulation of thickness during rolling that would occupy more space along the vehicle's height direction, thus maintaining a compact structure while ensuring durability.

[0074] It should be understood that the application of this application is not limited to the examples above. Those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims. Those skilled in the art can understand that implementing all or part of the processes of the above embodiments and making equivalent changes according to the claims of this application still fall within the scope of this application.

Claims

1. A sunshade curtain structure (100), characterized in that, The sunshade structure (100) includes: curtain fabric (10), roller (20), guide rail assembly (30) and folding mechanism (40); The guide rail assembly (30) is disposed on opposite sides of the curtain (10), and the roller (20) is adapted to roll up or unroll the curtain (10). The curtain (10) includes: fabric (11) and side strips (12) connected to the fabric (11). The arrangement direction of the side strips (12) and the fabric (11) is perpendicular to the extension direction of the guide rail assembly (30). The folding mechanism (40) is used to fold the edge strip (12) and the fabric (11) from a folded state to a misaligned state when the roller (20) rolls up the curtain (10), wherein, in the misaligned state, the orthographic projection of the edge strip (12) on the plane of the fabric (11) is outside the fabric (11).

2. The sunshade curtain structure (100) according to claim 1, characterized in that, The sunshade structure (100) further includes: a front frame (50), which is connected to one end of the guide rail assembly (30), and a receiving space (51) is formed in the front frame (50), and the roller (20) is rotatably disposed in the receiving space (51); a curtain (10) entrance communicating with the receiving space (51) is formed on the front frame (50); and the folding mechanism (40) is connected to the front frame (50) and disposed at the curtain (10) entrance.

3. The sunshade structure (100) according to claim 2, characterized in that, The front seat frame (50) includes a transition section (53) and a widening section (54). The transition section (53) is connected between the widening section (54) and the guide rail assembly (30). A first groove (531) is formed in the transition section (53), which is adapted to allow passage of the folded curtain (10). The folding mechanism (40) is provided in the widening section (54).

4. The sunshade structure (100) according to claim 3, characterized in that, The folding mechanism (40) includes a connecting part (41) and a guide arc surface (42). The connecting part (41) is connected to the widening part (54). The guide arc surface (42) includes a first guide section (421) and a spiral guide section (422). The first guide section (421) is located between the edge strip (12) and the fabric (11) in the folded state. The spiral guide section (422) is used to guide the edge strip (12) to fold from the folded state to the misaligned state.

5. The sunshade curtain structure (100) according to claim 4, characterized in that, The first guide section (421) is at least partially located within the groove.

6. The sunshade structure (100) according to any one of claims 1-4, characterized in that, The guide rail includes a first guide rail (31) and a second guide rail (32), wherein the first guide rail (31) and the second guide rail (32) are respectively disposed on opposite sides of the curtain (10); The edge strip (12) includes: a first edge strip (12) and a second edge strip (12), the first edge strip (12) and the second edge strip (12) are disposed on opposite sides of the fabric (11), the first edge strip (12) is slidably disposed on the first guide rail (31), and the second edge strip (12) is slidably disposed on the second guide rail (32); The folding mechanism (40) includes a first folding mechanism (40) and a second folding mechanism (40). The first folding mechanism (40) is adapted to fold the first edge strip (12) and the fabric (11) from the folded state to the misaligned state. The second folding mechanism (40) is adapted to fold the second edge strip (12) and the fabric (11) from the folded state to the misaligned state.

7. The sunshade structure (100) according to claim 6, characterized in that, The sunshade structure (100) further includes: a front seat frame (50), which is connected to one end of the guide rail assembly (30), and a receiving space (51) is formed in the front seat frame (50), and the roller (20) is rotatably disposed in the receiving space (51); the front seat frame (50) is engaged with the first guide rail (31) and the second guide rail (32).

8. The sunshade structure (100) according to claim 7, characterized in that, The sunshade structure (100) further includes a rear crossbeam (60), which is connected to the first guide rail (31) and the second guide rail (32) respectively, and the rear crossbeam (60) is located on the side of the guide rail assembly (30) away from the front seat frame (50).

9. The sunshade structure (100) according to claim 8, characterized in that, The rear crossbeam (60) is threadedly connected to the first guide rail (31) and the second guide rail (32).

10. The sunshade structure (100) according to any one of claims 1-4, characterized in that, The edge strip (12) is connected to the fabric (11) by welding.

11. A vehicle body, characterized in that, include: The vehicle body and the sunshade structure (100) according to any one of claims 1-10, wherein the vehicle body is provided with a skylight, and the sunshade structure (100) is disposed in the skylight.

12. A vehicle, characterized in that, include: The sunshade structure (100) according to any one of claims 1-10, or the vehicle body according to claim 11.

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