Skylight sunshade curtain structure and vehicle

Abstract

The embodiment of the utility model provides a skylight sunshade curtain structure and a vehicle, the skylight sunshade curtain structure comprises a sunshade curtain, a driving assembly and a transmission assembly, and the driving assembly is connected to one end of the sunshade curtain; the transmission assembly comprises a first reel and a second reel, and the first reel and the second reel are used for jointly winding the other end of the sunshade curtain. Under the driving of the driving assembly, the sunshade curtain can be wound or unfolded, and the winding section of the sunshade curtain is oval, so that the sunshade curtain can be jointly wound by using the first winding shaft and the second winding shaft, and the occupied space in the height direction caused by winding the sunshade curtain on a single winding shaft can be reduced; and the height size of the skylight sunshade curtain structure can be conveniently controlled.

Description

Technical Field

[0001] The present application belongs to the technical field of automobile sunroof shading, and specifically, the present application relates to a sunroof sunshade structure and a vehicle. Background Art

[0002] With the continuous development of modern automobile technology, consumers have put forward higher requirements for the comfort and practicality of the interior environment of the car. As an important part of the car, the sunroof can not only provide good lighting and ventilation effects, but also improve the sense of vision inside the car. However, when the sunroof is opened, direct sunlight and heat will enter the car, affecting the temperature and lighting environment inside the car. Therefore, the design of the sunshade is particularly important.

[0003] At present, the sunroof sunshade usually adopts a single roller structure, and the sunshade is retracted and extended by rotating the roller. Although this structure is simple, during the process of retracting and extending the sunshade, due to the thickness of the sunshade itself, it will occupy a large height direction space after being rolled up on the roller, thus affecting the driving experience. Utility Model Content

[0004] An object of an embodiment of the present application is to provide a new solution for a sunroof sunshade structure and a vehicle.

[0005] According to a first aspect of an embodiment of the present application, a skylight sunshade structure is provided, comprising:

[0006] Sunshades;

[0007] A drive assembly connected to one end of the sunshade;

[0008] A transmission assembly, the transmission assembly comprising a first reel and a second reel, the first reel and the second reel being used to jointly wind up the other end of the sunshade;

[0009] Driven by the driving assembly, the sunshade curtain can be rolled up or unfolded, and the rolled-up cross-section of the sunshade curtain is elliptical.

[0010] Optionally, during the process of rolling and unrolling the sunshade curtain, the first roller and the second roller can rotate synchronously.

[0011] Optionally, the first reel and the second reel are arranged side by side, and an arrangement direction of the first reel and the second reel is consistent with a movement direction of the sunshade.

[0012] Optionally, the transmission assembly further includes a transmission belt, which is sleeved on the first reel and the second reel, and the transmission belt is transmission-connected to the first reel and the second reel respectively, and the other end of the sunshade is wound on the transmission belt.

[0013] Optionally, the transmission assembly further comprises a first gear, a second gear and a third gear respectively meshing with the first gear and the second gear, the first gear is sleeved on the first reel, the second gear is sleeved on the second reel, and the transmission belt is respectively transmission-connected with the first gear and the second gear;

[0014] During the process of rolling and unfolding the sunshade curtain, the first gear and the second gear can rotate synchronously.

[0015] Optionally, the transmission assembly further comprises a torsion spring, and the torsion spring is arranged at the end of the first reel; under the first drive of the driving assembly, the first reel and the second reel can rotate in the positive direction and drive the sunshade to unfold, and the torsion spring is compressed;

[0016] Under the second drive of the driving assembly, the torsion spring can be reset and drive the first winding shaft and the second winding shaft to rotate in opposite directions, so that the sunshade curtain is rolled up.

[0017] Optionally, the transmission assembly further includes a silencer pipe connected between the first reel and the torsion spring.

[0018] Optionally, the transmission assembly further comprises a sheath, and the ends of the first reel and the ends of the second reel are respectively sleeved with the sheath.

[0019] Optionally, the transmission assembly further includes an actuator and a first transmission shaft, the third gear is connected to one side of the first transmission shaft, the actuator is connected to the other side of the first transmission shaft, and the actuator is capable of controlling the rotation of the third gear.

[0020] Optionally, it is characterized in that the transmission assembly includes two gear sets formed by the first gear, the second gear and the third gear, and the two gear sets are respectively located on both sides of the sunshade.

[0021] Optionally, a mounting bracket is further included, and the gear set is connected to the mounting bracket.

[0022] Optionally, the driving assembly includes a driving source and a second transmission shaft, one end of the second transmission shaft is connected to the driving source, and the other end of the second transmission shaft is connected to the sunshade;

[0023] Driven by the driving source, the second transmission shaft can push or pull the sunshade.

[0024] Optionally, the driving assembly further includes guide rails, which are located on both sides of the sunshade curtain and are used to guide the movement of the sunshade curtain.

[0025] Optionally, a first limiting portion and a second limiting portion are further included, and during the rolling and unfolding process of the sunshade curtain, the sunshade curtain can move between the first limiting portion and the second limiting portion.

[0026] According to a second aspect of an embodiment of the present application, a vehicle is provided, comprising the sunroof sunshade structure described in the first aspect, wherein the sunroof sunshade structure is arranged on a sunroof of the vehicle.

[0027] A technical effect of this application is:

[0028] An embodiment of the present application provides a sunroof sunshade structure, comprising a sunshade, a drive assembly and a transmission assembly, wherein the drive assembly is connected to one end of the sunshade; the transmission assembly comprises a first reel and a second reel, and the first reel and the second reel are used to jointly wind up the other end of the sunshade; under the drive of the drive assembly, the sunshade can be wound or unfolded, and the winding cross-section of the sunshade is elliptical, so that the sunshade can be wound up with the first reel and the second reel, thereby reducing the space occupied in the height direction caused by winding the sunshade on a single reel, and facilitating the control of the height dimension of the sunroof sunshade structure.

[0029] Other features and advantages of the present application will become apparent from the following detailed description of exemplary embodiments of the present application with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the application and, together with the description, serve to explain the principles of the application.

[0031] Figure 1 A schematic diagram of a skylight sunshade structure provided in an embodiment of the present application;

[0032] Figure 2 An exploded diagram of a skylight sunshade structure provided in an embodiment of the present application;

[0033] Figure 3 for Figure 2 A partial enlarged view of the middle A;

[0034] Figure 4 for Figure 3 A partial enlarged view of point B in the middle;

[0035] Figure 5 for Figure 3 The cross-sectional view at B in the middle;

[0036] Figure 6 for Figure 5 A partial enlarged view of point C in the middle;

[0037] Figure 7 An exploded view of another skylight sunshade structure provided in an embodiment of the present application;

[0038] Figure 8 for Figure 7 A partial enlarged view of point D in the middle.

[0039] Description of reference numerals:

[0040] 1. Sunshade; 2. Driving assembly; 21. Driving source; 22. Second transmission shaft; 23. Guide rail; 3. Transmission assembly; 31. First reel; 32. Second reel; 33. Transmission belt; 34. First gear; 35. Second gear; 36. Third gear; 37. Torsion spring; 38. Silencer; 39. Sheath; 40. Actuator; 41. First transmission shaft; 42. Buffer; 43. Press sleeve; 5. Mounting bracket; 6. First limit portion; 7. Second limit portion. DETAILED DESCRIPTION

[0041] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application.

[0042] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present application, its application, or uses.

[0043] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0044] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0045] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0046] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "height", "thickness", "up", "down", "front", "middle", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0047] An embodiment of the present application provides a sunroof shade structure, which is commonly used in sunroof shading of vehicles.

[0048] Reference Figures 1 to 8 , the skylight sunshade structure comprises:

[0049] Sunshade 1;

[0050] A driving assembly 2, wherein the driving assembly 2 is connected to one end of the sunshade curtain 1;

[0051] A transmission assembly 3, the transmission assembly 3 comprising a first reel 31 and a second reel 32, the first reel 31 and the second reel 32 being used to wind up the other end of the sunshade curtain 1 together;

[0052] Driven by the driving assembly 2 , the sunshade curtain 1 can be rolled up or unfolded, and the rolled-up cross section of the sunshade curtain 1 is elliptical.

[0053] like Figure 1 and Figure 2 As shown, the driving assembly 2 can be connected to the front end of the sunshade curtain 1, and the transmission assembly 3 can be connected to the rear end of the sunshade curtain 1, and the sunshade curtain 1 can be rolled up and unfolded by the driving of the driving assembly 2 and the transmission of the transmission assembly 3, that is, the retracting and extending movement of the sunshade curtain 1 can be realized. The coordinated work of the driving assembly 2 and the transmission assembly 3 can ensure the stability of the sunshade curtain 1 during the rolling and unfolding process, and also improve the working reliability of the sunshade curtain structure of the skylight.

[0054] like Figure 5 As shown, the transmission assembly 3 may include a first reel 31 and a second reel 32, and the first reel 31 and the second reel 32 may be used to wind up the sunshade 1. This design also makes the winding cross section of the sunshade 1 elliptical, which can store the sunshade 1 more tightly than the traditional circular cross section, and is also convenient for reducing the space occupied by the sunshade 1 in the height direction, thereby saving the interior space of the vehicle using the sunroof sunshade structure, optimizing the interior space layout of the vehicle, and also facilitating the improvement of the driving experience.

[0055] In the process of rolling and unfolding the sunshade 1, the first reel 31 and the second reel 32 are arranged to rotate synchronously, so that the movement of the sunshade 1 is smoother, the possibility of jamming or slipping is reduced, and the user's operating experience is improved.

[0056] In addition, by setting the winding cross-section of the sunshade 1 to be elliptical, the sunshade 1 can be folded and unfolded more evenly during the winding and unfolding process, thereby reducing wrinkles caused by uneven folding angles. This not only improves the sunshade effect of the sunshade 1, enabling it to more effectively block external light and heat, but also extends the service life of the sunshade 1, reducing the cost and inconvenience caused by frequent replacement.

[0057] Among them, the center distance between the first roller 31 and the second roller 32 can be set in the range of 35 mm to 120 mm, which can effectively reduce the height of the winding section of the sunshade curtain 1, thereby reducing the space occupied by the sunshade curtain 1 in the height direction, and at the same time can also ensure the structural stability of the skylight sunshade curtain structure.

[0058] Optionally, during the process of rolling and unrolling the sunshade curtain 1 , the first reel 31 and the second reel 32 can rotate synchronously.

[0059] like Figure 4 and Figure 5 As shown, during the winding and unfolding process of the sunshade curtain 1, the first reel 31 and the second reel 32 are arranged to rotate synchronously, so that the movement of the sunshade curtain 1 is smoother, the possibility of jamming or slipping is reduced, and the user's operating experience is improved.

[0060] Furthermore, the synchronous rotation of the first reel 31 and the second reel 32 allows the sunshade 1 to be evenly stressed during the winding and unwinding process, thereby reducing the risk of vibration or distortion caused by the inconsistent rotation of the first reel 31 and the second reel 32. This smooth movement not only enhances the stability of the sunshade 1, but also reduces the wear caused by mechanical friction, thereby extending the service life of the sunshade 1.

[0061] In addition, arranging the first reel 31 and the second reel 32 to rotate synchronously can also ensure that the sunshade curtain 1 can be evenly and tightly wound during the winding process and form a regular elliptical cross-section, which not only reduces wrinkles and looseness caused by uneven winding, but also improves the overall aesthetics of the sunshade curtain 1.

[0062] Optionally, the first reel 31 and the second reel 32 are arranged side by side, and the arrangement direction of the first reel 31 and the second reel 32 is consistent with the movement direction of the sunshade 1 .

[0063] Specifically, the movement direction of the sunshade 1 is Figure 1In the horizontal left and right direction, the arrangement direction of the first scroll 31 and the second scroll 32 is also set to Figure 1 The horizontal left and right directions enable the sunshade curtain 1 to move directly and smoothly on the first roller 31 and the second roller 32 when winding and unfolding, which can reduce the friction and resistance of the sunshade curtain 1 in the transmission process, thereby improving the winding efficiency and making the winding and unfolding of the sunshade curtain 1 faster and smoother.

[0064] Furthermore, the first reel 31 and the second reel 32 arranged side by side allow the sunshade 1 to be evenly stressed during the winding process. The two regions of the sunshade 1 are supported and wound by the first reel 31 and the second reel 32, respectively, avoiding stretching or twisting caused by single-point stress. This even force distribution not only prolongs the service life of the sunshade 1, but also improves the overall aesthetics and stability of the sunshade 1.

[0065] In addition, the first reel 31 and the second reel 32 arranged side by side also make the entire transmission assembly 3 more concise and compact, reduce the number and complexity of mechanical parts, reduce the probability of failure, and improve the reliability of the system.

[0066] Optionally, the transmission assembly 3 also includes a transmission belt 33, which is sleeved on the first reel 31 and the second reel 32, and the transmission belt 33 is respectively connected to the first reel 31 and the second reel 32, and the other end of the sunshade 1 is wound on the transmission belt 33.

[0067] like Figure 4 and Figure 6 As shown, a transmission belt 33 is provided to be respectively connected to the first reel 31 and the second reel 32, so that the transmission belt 33 can connect the first reel 31 and the second reel 32, so that the first reel 31 and the second reel 32 can rotate synchronously and smoothly. This design reduces energy loss during transmission, improves transmission efficiency, and also ensures the stability of the sunshade 1 when winding and unfolding.

[0068] The other end of the sunshade 1 is wound on the transmission belt 33. Due to the softness and elasticity of the transmission belt 33, it can better adapt to the deformation of the sunshade 1 during the winding process and reduce the generation of wrinkles. At the same time, the transmission belt 33 can evenly distribute the tension of the sunshade 1, making the sunshade 1 more neat and tight after winding.

[0069] In addition, the design of the transmission belt 33 makes the transmission mode between the first reel 31 and the second reel 32 more flexible, and the tension of the transmission belt 33 can be adjusted according to actual needs to adapt to sunshades 1 of different specifications and weights. In addition, the transmission belt 33 also has a certain buffering effect, which can also reduce the damage to the sunshade 1 caused by external impact or vibration, and extend the service life of the sunshade 1.

[0070] Optionally, the transmission assembly 3 further includes a first gear 34, a second gear 35, and a third gear 36 meshed with the first gear 34 and the second gear 35 respectively, the first gear 34 is sleeved on the first reel 31, the second gear 35 is sleeved on the second reel 32, and the transmission belt 33 is transmission-connected with the first gear 34 and the second gear 35 respectively;

[0071] During the process of rolling and unrolling the sunshade curtain 1 , the first gear 34 and the second gear 35 can rotate synchronously.

[0072] like Figures 3 to 5 As shown, by meshing the first gear 34 with the third gear 36 and the second gear 35 with the third gear 36 respectively, it is possible to ensure the synchronous rotation of the first reel 31 and the second reel 32 during the winding and unfolding process of the sunshade curtain 1, thereby effectively reducing the uneven winding or jamming of the sunshade curtain 1 caused by transmission errors, thereby improving the movement stability and winding quality of the sunshade curtain 1.

[0073] Among them, the first gear 34 and the third gear 36 and the second gear 35 and the third gear 36 are respectively engaged, so that the first gear 34 and the second gear 35 can rotate synchronously, and then can drive the first roller 31 and the second roller 32 to rotate synchronously, thereby realizing the rapid and stable winding and unfolding of the sunshade curtain 1 and improving the transmission efficiency.

[0074] like Figure 3 As shown, the transmission assembly 3 further includes a pressing sleeve 43 , which is used to fix the third gear 36 and facilitate the installation of the third gear 36 .

[0075] Optionally, the transmission assembly 3 further includes a torsion spring 37, and the torsion spring 37 is arranged at the end of the first reel 31; under the first drive of the driving assembly 2, the first reel 31 and the second reel 32 can rotate in the positive direction and drive the sunshade 1 to unfold, and the torsion spring 37 is compressed;

[0076] Under the second drive of the driving assembly 2 , the torsion spring 37 can be reset and drive the first winding shaft 31 and the second winding shaft 32 to rotate in opposite directions, so that the sunshade 1 is wound.

[0077] like Figure 4 and Figure 5 As shown, under the first drive of the driving assembly 2, the driving assembly 2 can pull the sunshade 1 to expand, the sunshade 1 can drive the transmission belt 33 to rotate, and the transmission belt 33 drives the connected first reel 31 and second reel 32 to rotate. The rotation of the first reel 31 will continuously compress the torsion spring 37, so that the torsion spring 37 can store elastic force.

[0078] Under the second drive of the driving assembly 2, the driving assembly 2 can push the sunshade 1. At this time, the torsion spring 37 can release the stored energy and drive the first reel 31 and the second reel 32 to rotate in the opposite direction, so that the first reel 31 and the second reel 32 can rotate in the opposite direction and wind the sunshade 1.

[0079] Among them, the automatic winding function of the sunshade 1 can be realized by utilizing the elastic force of the torsion spring 37, which simplifies the control requirements of the drive assembly 2 to a certain extent. The elastic characteristics of the torsion spring 37 enable it to provide a stable driving force when releasing energy, thereby ensuring the stability of the sunshade 1 during the winding and unfolding process. This stable movement reduces the vibration and impact of the sunshade 1 and improves the overall movement quality.

[0080] Optionally, the transmission assembly 3 further includes a silencer pipe 38 , and the silencer pipe 38 is connected between the first reel 31 and the torsion spring 37 .

[0081] like Figure 4 and Figure 5 As shown, during the winding and unwinding process of the sunshade 1, the interaction between the first reel 31 and the torsion spring 37 may generate certain noise. A silencer pipe 38 is connected between the first reel 31 and the torsion spring 37, which can effectively absorb and disperse the noise, reduce the propagation of sound, and create a quieter and more comfortable environment for users.

[0082] Furthermore, the silencer 38 not only reduces noise, but also avoids direct friction and collision between the first reel 31 and the torsion spring 37, thereby helping to reduce mechanical wear and extend the service life of the sunroof shade structure.

[0083] Optionally, the transmission assembly 3 further includes a sheath 39 , and the ends of the first reel 31 and the ends of the second reel 32 are respectively sleeved with the sheath 39 .

[0084] like Figure 3As shown, the sheath 39 is sleeved on the ends of the first reel 31 and the second reel 32 to form a protective layer, which effectively prevents the ends of the first reel 31 and the second reel 32 from direct contact and friction with the outside world. This can not only prevent the ends of the first reel 31 and the second reel 32 from being damaged or worn, and extend the service life of the first reel 31 and the second reel 32, but also reduce the noise and vibration caused by friction.

[0085] Furthermore, the sheath 39 can be used to fix the positions of the first reel 31 and the second reel 32 to prevent them from shifting or shaking during operation, thereby ensuring the stability and accuracy of winding and unfolding the sunshade 1. The sheath 39 is usually made of wear-resistant and beautiful materials, which can improve the overall appearance quality of the transmission assembly 3.

[0086] Optionally, the transmission assembly 3 further includes an actuator 40 and a first transmission shaft 41 , the third gear 36 is connected to one side of the first transmission shaft 41 , the actuator 40 is connected to the other side of the first transmission shaft 41 , and the actuator 40 is capable of controlling the rotation of the third gear 36 .

[0087] like Figure 7 and Figure 8 As shown, the actuator 40 and the third gear 36 are respectively connected to the first transmission shaft 41, so that the rotation of the third gear 36 can be accurately controlled by the actuator 40, thereby driving the synchronous rotation of the first gear 34 and the second gear 35 respectively meshed on both sides through the third gear 36, thereby driving the synchronous rotation of the first reel 31 and the second reel 32, and realizing the precise adjustment of the winding and unfolding process of the sunshade 1.

[0088] Among them, the actuator 40 is used to directly drive the rotation of the third gear 36, which reduces the intermediate links in the transmission process, reduces energy loss, and improves the transmission efficiency. This helps to speed up the winding and unfolding speed of the sunshade 1 and improves the user experience. In addition, the actuator 40 usually has high reliability and stability, and can ensure long-term stable operation. By controlling the rotation of the third gear 36 through the actuator 40, the risk of abnormal movement of the sunshade 1 due to mechanical failure is also reduced, and the reliability of the system is improved.

[0089] In addition, the actuator 40 can also be integrated with the vehicle's control system to achieve intelligent control. Through programming and algorithm optimization, the opening and closing degree of the sunshade 1 can be automatically adjusted according to different scenes and needs, providing a more personalized user experience.

[0090] Optionally, the transmission assembly 3 includes two gear sets formed by the first gear 34 , the second gear 35 and the third gear 36 , and the two gear sets are respectively located on both sides of the sunshade 1 .

[0091] like Figure 1 and Figure 2 As shown, by arranging two sets of gear sets on both sides of the sunshade 1, a balanced distribution of the transmission load is achieved. Whether the sunshade 1 is being rolled up or unrolled, the gear sets on both sides can evenly bear the load, which can reduce the risk of mechanical failure or performance degradation caused by uneven load. In addition, by distributing the load to the two sets of gear sets, the stress on each gear is relatively reduced, thereby extending the service life of the gear.

[0092] Furthermore, the two gear sets can work together to support and drive the movement of the sunshade 1, making the entire system more stable and reliable, so that the sunshade can maintain good stability when facing external interference such as strong wind and vibration.

[0093] In addition, for larger or heavier sunshade 1, the provision of two sets of gear sets can better meet its transmission requirements, thereby improving the adaptability and flexibility of the sunroof sunshade.

[0094] Optionally, a mounting bracket 5 is further included, and the gear set is connected to the mounting bracket 5 .

[0095] like Figure 3 and Figure 7 As shown, the mounting bracket 5 serves as a fixed support for the gear set, which can ensure the stability and reliability of the gear set during operation. Through reasonable design and installation, the mounting bracket 5 can withstand various forces and moments generated by the gear set, effectively preventing the gear set from shifting or loosening, thereby ensuring the smooth operation of the sunshade 1.

[0096] In addition, the design of the mounting bracket 5 can be flexibly adjusted according to the actual application requirements of the sunroof sunshade structure, which helps to optimize the overall layout of the sunroof sunshade structure. Through the reasonable design of the mounting bracket 5, the space occupied by the transmission assembly 3 can be reduced, and the space utilization rate of the vehicle interior using the sunroof sunshade structure can be improved.

[0097] Furthermore, the mounting bracket 5 may be made of vibration-damping materials and structures, so that the mounting bracket 5 can effectively reduce the vibration and noise generated by the gear set during operation, thereby improving user experience and riding comfort.

[0098] like Figure 3 As shown, the transmission assembly 3 also includes a buffer 42 , which can be a buffer foam, a buffer sponge, etc. The buffer 42 is sandwiched between the first reel 31 and the mounting bracket 5 , and can reduce the influence of the rotation of the first reel 31 on the mounting bracket 5 .

[0099] Optionally, the driving assembly 2 includes a driving source 21 and a second transmission shaft 22, one end of the second transmission shaft 22 is connected to the driving source 21, and the other end of the second transmission shaft 22 is connected to the sunshade 1;

[0100] Driven by the driving source 21 , the second transmission shaft 22 can push or pull the sunshade 1 .

[0101] like Figure 1 and Figure 2 As shown, the driving source 21 can directly provide power to the sunshade 1 through the second transmission shaft 22, thereby achieving efficient power transmission. This design reduces energy loss during the transmission process, so that the output of the driving source 21 can be converted into kinetic energy for the movement of the sunshade 1 to a greater extent, thereby improving the transmission efficiency of the sunshade structure.

[0102] The driving source 21 can select different driving modes as needed, such as electric, hydraulic or pneumatic, etc. This flexibility enables the driving component 2 to adapt to different application scenarios and requirements, thereby improving the versatility and adaptability of the sunroof shade system.

[0103] Among them, the second transmission shaft 22 can be a flexible shaft. On the one hand, it can facilitate the self-arrangement of the second transmission shaft 22 and improve the space utilization rate of the sunroof sunshade curtain structure; on the other hand, it also facilitates the connection and transmission between the second transmission shaft 22 and the sunshade curtain 1.

[0104] Optionally, the driving assembly 2 further includes guide rails 23 , and the guide rails 23 are located on both sides of the sunshade curtain 1 , and the guide rails 23 are used to guide the movement of the sunshade curtain 1 .

[0105] like Figure 1 and Figure 2 As shown, the guide rail 23 provides a clear movement path for the sunshade 1, ensuring the trajectory stability of the sunshade 1 during the winding and unfolding process. Guided by the guide rail 23, the sunshade 1 can move smoothly along the predetermined direction, avoiding deviation or shaking, and improving the accuracy and reliability of the movement. Moreover, the setting of the guide rail 23 also makes the movement of the sunshade 1 more fluent and smooth, reducing the jamming or abnormal noise caused by poor movement.

[0106] Moreover, a sliding contact relationship can be formed between the guide rail 23 and the sunshade 1, which reduces friction and wear compared to the case without a guide rail. By optimizing the material and design of the guide rail 23, the friction coefficient can be further reduced, and the service life of the sunshade 1 and the guide rail 23 can be extended.

[0107] In addition, the guide rail 23 can also support a part of the structure, thereby enhancing the stability of the entire skylight sunshade structure. Through reasonable layout and fixation, the guide rail 23 can evenly distribute the force on the sunshade 1, reduce structural deformation or damage caused by uneven force, and improve the stability and reliability of the skylight sunshade structure.

[0108] Optionally, a first limiting portion 6 and a second limiting portion 7 are further included. During the rolling and unfolding process of the sunshade curtain 1 , the sunshade curtain 1 can move between the first limiting portion 6 and the second limiting portion 7 .

[0109] like Figure 1 and Figure 2 As shown, the first limit portion 6 and the second limit portion 7 are the movement boundaries of the sunshade 1. During the winding and unfolding process, the sunshade 1 always moves between the two limit portions, thereby achieving precise control of its movement range, helping to prevent the sunshade 1 from exceeding the predetermined position and ensuring the stability and reliability of the system.

[0110] By providing the first limiter 6 and the second limiter 7, mechanical failures caused by excessive winding or unfolding of the sunshade 1 can be effectively avoided. For example, when the sunshade 1 reaches the maximum winding position, the second limiter 7 can prevent it from continuing to wind, thereby preventing damage to the internal mechanism; when the sunshade 1 is unfolded to the maximum position, the first limiter 6 can prevent it from over-unfolding, thereby maintaining the stability of the sunshade structure.

[0111] In addition, the design of the first limit portion 6 and the second limit portion 7 allows the user to more conveniently adjust the range of motion of the sunshade curtain 1. Moreover, during maintenance, only the first limit portion 6 and the second limit portion 7 need to be checked and adjusted to ensure the normal operation of the sunshade curtain structure, thereby reducing the difficulty and cost of maintenance and improving the maintainability of the sunshade curtain structure.

[0112] In addition, when the sunroof sunshade structure is applied to a vehicle, the first limiting portion 6 and the second limiting portion 7 can also enhance the operating safety of the vehicle. In an emergency, such as when the vehicle suddenly brakes or is subjected to an external impact, the first limiting portion 6 and the second limiting portion 7 can quickly limit the movement of the sunshade 1 to prevent it from being damaged due to inertia or causing other safety hazards.

[0113] An embodiment of the present application also provides a vehicle, comprising the above-mentioned sunroof sunshade structure, wherein the sunroof sunshade structure is arranged on the sunroof of the vehicle.

[0114] Although some specific embodiments of the present application have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are only for illustration, not for limiting the scope of the present application. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.

Claims

1. A skylight sunshade structure, characterized in that: include: Sunshade (1); A driving assembly (2), the driving assembly (2) being connected to one end of the sunshade curtain (1); A transmission assembly (3), the transmission assembly (3) comprising a first reel (31) and a second reel (32), the first reel (31) and the second reel (32) being used to jointly wind up the other end of the sunshade curtain (1); Driven by the drive assembly (2), the sunshade curtain (1) can be rolled up or unfolded, and the rolled-up cross-section of the sunshade curtain (1) is elliptical.

2. The skylight sunshade structure according to claim 1, characterized in that: During the process of rolling up and unfolding the sunshade curtain (1), the first rolling shaft (31) and the second rolling shaft (32) are capable of rotating synchronously.

3. The skylight sunshade structure according to claim 1, characterized in that: The first reel (31) and the second reel (32) are arranged side by side, and the arrangement direction of the first reel (31) and the second reel (32) is consistent with the movement direction of the sunshade (1).

4. The skylight sunshade structure according to claim 1, characterized in that: The transmission assembly (3) further comprises a transmission belt (33), wherein the transmission belt (33) is sleeved on the first reel (31) and the second reel (32), and the transmission belt (33) is respectively transmission-connected to the first reel (31) and the second reel (32), and the other end of the sunshade (1) is wound on the transmission belt (33).

5. The skylight sunshade structure according to claim 4, characterized in that: The transmission assembly (3) further comprises a first gear (34), a second gear (35) and a third gear (36) respectively meshing with the first gear (34) and the second gear (35); the first gear (34) is sleeved on the first reel (31), the second gear (35) is sleeved on the second reel (32), and the transmission belt (33) is respectively transmission-connected with the first gear (34) and the second gear (35); During the process of rolling up and unfolding the sunshade curtain (1), the first gear (34) and the second gear (35) can rotate synchronously.

6. The skylight sunshade structure according to claim 5, characterized in that: The transmission assembly (3) further comprises a torsion spring (37), wherein the torsion spring (37) is arranged at an end of the first reel (31); under the first drive of the driving assembly (2), the first reel (31) and the second reel (32) can rotate in a positive direction and drive the sunshade (1) to unfold, and the torsion spring (37) is compressed; Under the second drive of the driving assembly (2), the torsion spring (37) can be reset and drive the first reel (31) and the second reel (32) to rotate in opposite directions, so that the sunshade (1) is wound.

7. The skylight sunshade structure according to claim 6, characterized in that: The transmission assembly (3) further comprises a silencer pipe (38), wherein the silencer pipe (38) is connected between the first reel (31) and the torsion spring (37).

8. The skylight sunshade structure according to claim 5, characterized in that: The transmission assembly (3) further comprises a sheath (39), and the end of the first reel (31) and the end of the second reel (32) are respectively sleeved with the sheath (39).

9. The skylight sunshade structure according to claim 5, characterized in that: The transmission assembly (3) further comprises an actuator (40) and a first transmission shaft (41), the third gear (36) being connected to one side of the first transmission shaft (41), the actuator (40) being connected to the other side of the first transmission shaft (41), and the actuator (40) being capable of controlling the rotation of the third gear (36).

10. The sunshade structure for a skylight according to any one of claims 5 to 9, characterized in that: The transmission assembly (3) comprises two sets of gear sets formed by the first gear (34), the second gear (35) and the third gear (36), and the two sets of gear sets are respectively located on both sides of the sunshade (1).

11. The skylight sunshade structure according to claim 10, characterized in that: It also comprises a mounting bracket (5), and the gear set is connected to the mounting bracket (5).

12. The skylight sunshade structure according to claim 1, characterized in that: The driving assembly (2) comprises a driving source (21) and a second transmission shaft (22), one end of the second transmission shaft (22) is connected to the driving source (21), and the other end of the second transmission shaft (22) is connected to the sunshade (1); Driven by the driving source (21), the second transmission shaft (22) can push or pull the sunshade (1).

13. The skylight sunshade structure according to claim 12, characterized in that: The driving assembly (2) further comprises guide rails (23), wherein the guide rails (23) are located on both sides of the sunshade curtain (1), and the guide rails (23) are used to guide the movement of the sunshade curtain (1).

14. The skylight sunshade structure according to claim 1, characterized in that: It also comprises a first limiting portion (6) and a second limiting portion (7), and during the process of rolling and unfolding the sunshade curtain (1), the sunshade curtain (1) can move between the first limiting portion (6) and the second limiting portion (7).

15. A vehicle, characterized in that: It comprises the sunroof sunshade structure as described in any one of claims 1 to 14, and the sunroof sunshade structure is arranged on the sunroof of the vehicle.

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