Electric sunshade curtain driven by closed-loop inhaul cable

Abstract

The utility model discloses a closed-loop inhaul cable driven electric sunshade curtain which comprises a guide rail, a front seat frame arranged at one end of the guide rail and a rear cross beam arranged at the other end of the guide rail, a sunshade curtain assembly is arranged on the rear cross beam, and an inhaul cable assembly for driving the sunshade curtain assembly to be opened or closed is arranged on the front seat frame. A pulley block is arranged on the rear cross beam and the guide rails, the inhaul cable assembly comprises a wire wheel, a driving inhaul cable wound on the wire wheel and a driving unit for driving the wire wheel to rotate, the driving inhaul cable extends towards the guide rails on the two sides respectively, and the driving inhaul cable is wound on the pulley block and connected with the pulley block to form a closed-loop inhaul cable path; a self-winding structure is arranged on the sunshade curtain assembly so that the sunshade curtain assembly can have self-winding force, the spreading end of the sunshade curtain assembly is connected with the driving inhaul cable, and the driving unit drives the wire wheel to rotate clockwise or anticlockwise so that the driving inhaul cable can drive the sunshade curtain assembly to be wound or unwound.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile parts, specifically relates to a closed loop cable drive electric sunshade curtain. BACKGROUND

[0002] With the continuous development of automobile technology and the improvement of people's living standards, panoramic sunroof has become the standard of vehicles basically, it has the advantages such as making the light in the car sufficient, the head movement space increases, the roof field of vision is broad, and can increase the luxury feeling of vehicle on the appearance, at the same time, it must be equipped with sunshade curtain to realize the function of shading sunlight when the light is strong in summer, therefore, as a panoramic sunroof system, sunshade curtain is one of the indispensable components.

[0003] The existing sunshade curtain driving form is generally the gear rack transmission mode of transmission flexible shaft and bevel gear meshing, thereby leading to the generation of larger noise in the operation process, reduce the user's use experience, and the resistance of the existing driving system itself is larger, therefore, the motor of larger torque is needed, leading to the weight of the whole sunshade curtain increases greatly, inconvenient to install. SUMMARY

[0004] To solve the technical problems in the background art, the utility model provides a closed loop cable drive electric sunshade curtain.

[0005] The utility model discloses the technical scheme adopted to solve its technical problems is as follows:

[0006] A kind of closed loop cable drive electric sunshade curtain, including guide rail, front seat frame being arranged at the one end of guide rail, and rear crossbeam being arranged at the other end of guide rail, the sunshade curtain assembly is arranged on the rear crossbeam, and the front seat frame is provided with cable assembly for driving sunshade curtain assembly to open or close;

[0007] The pulley block is arranged on the rear crossbeam and guide rail, the cable assembly includes wire reel, drive cable being wound on wire reel, and drive unit for driving wire reel rotation, the drive cable extends towards the guide rail of two sides respectively, and the drive cable is wound on pulley block and is engaged, to constitute closed loop cable path;

[0008] The sunshade curtain assembly is provided with self-winding structure, so that the sunshade curtain assembly has self-winding force, and the spreading end of the sunshade curtain assembly is connected with the drive cable, the drive unit drives wire reel to rotate clockwise or counterclockwise, so that the drive cable drives sunshade curtain assembly to wind or open.

[0009] Preferably, the guide rail comprises a left slide rail and a right slide rail, the pulley block comprises a first guide pulley arranged on both sides of the front seat frame, a second guide pulley arranged at one end of the left slide rail and the right slide rail, and a third guide pulley arranged at the other end of the left slide rail and the right slide rail, the driving cable is crossed at both ends and is wound around the first guide pulley, the second guide pulley, and the third guide pulley arranged on the left slide rail, the right slide rail, and the front seat frame, respectively, and engages to form a closed cable path, and the spread end of the sunshade curtain assembly is connected to the first path and the second path, respectively. Through the above improvement, the driving cable is guided by the first guide pulley, the second guide pulley, and the third guide pulley at multiple points, thereby improving the stability of the driving cable during the winding and unwinding process to ensure the stability of the sunshade curtain during opening or closing.

[0010] Preferably, the driving cable has a first extension end and a second extension end, the first extension end first passes through the second guide pulley on the right slide rail, then passes through the third guide pulley on the right slide rail downward, and then passes through the first guide pulley on one side of the front seat frame upward to form a first path, and the second extension end first passes through the first guide pulley on the other side of the front seat frame, then passes through the third guide pulley on the left slide rail downward, and then passes through the second guide pulley on the left slide rail upward to form a second path, the first path and the second path engage to form a closed cable path. Through the above improvement, during the opening or closing process of the sunshade curtain, the driving cable on the first path and the driving cable on the second path simultaneously drive the sunshade curtain to move, thereby greatly improving the smoothness of the sunshade curtain during movement.

[0011] Preferably, a sliding groove is formed on the guide rail, a sliding block is arranged in the sliding groove, and the sliding block is connected to the spread end of the sunshade curtain assembly, the sliding block is arranged on the driving cable. Through the above improvement, when the wire reel winds or unwinds the driving cable, the sliding block slides in the sliding groove, thereby ensuring the stability of the sliding block during sliding, and the sliding block is connected to the spread end of the sunshade curtain assembly, so that the sliding block can pull the sunshade curtain assembly to close or open, thereby greatly increasing the stability of the sunshade curtain assembly during operation.

[0012] Preferably, a connecting plate is arranged on the spread end of the sunshade curtain assembly, and a connecting protrusion is arranged on the sliding block, the connecting protrusion is connected to the connecting plate. Through the above improvement, the connecting plate is arranged on the spread end of the sunshade curtain assembly, and the connecting plate is connected to the connecting protrusion on the sliding block, thereby improving the reliability of the connection between the sunshade curtain assembly and the sliding block, and ensuring the stability of the sunshade curtain assembly during horizontal spreading or winding.

[0013] Preferably, the sliding block is formed with a first connecting groove and a second connecting groove at two ends, the driving cable is provided with a clamping block, the clamping block is arranged in the first connecting groove, the driving cable is provided with a clamping sleeve, the clamping sleeve is arranged in the second connecting groove, and the clamping sleeve is provided with an elastic element, one end of the elastic element abuts against the clamping sleeve, and the other end abuts against the second connecting groove.

[0014] Preferably, the rear cross beam is formed with a limiting convex part, and the limiting convex part extends along the axial direction of the sunshade curtain assembly and is located above the sunshade curtain assembly.

[0015] Preferably, the first guide wheel, the second guide wheel and the third guide wheel comprise a mounting seat and a guide wheel rotatably arranged on the mounting seat, the guide wheel is formed with a rotating convex part, the mounting seat is formed with a rotating groove for arranging the rotating convex part, and the outer periphery of the guide wheel is formed with a guide groove for arranging the driving cable.

[0016] Preferably, the sunshade curtain assembly comprises a winding shaft rotatably arranged on the rear cross beam and a sunshade curtain wound on the winding shaft, and the self-winding structure comprises a recovery spring arranged in the winding shaft and connected to both ends of the winding shaft, so that the winding shaft has a self-winding force.

[0017] Preferably, the front seat frame is formed with a limiting hook for the driving cable to pass through, and the driving cable is arranged in the limiting hook, so that the driving cable is prevented from deviating during winding and unwinding, and the stability of the driving cable during winding and unwinding is further improved.

[0018] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0019] By setting the front seat frame at one end of the guide rail, setting the rear cross beam at the other end of the guide rail, setting the sunshade curtain assembly on the rear cross beam, and setting on the front seat frame, setting the driving cable assembly driving the sunshade curtain assembly to spread on the front seat frame, the pulley block is arranged on the mounting seat and the guide rail, the cable assembly includes a wire wheel, a driving cable wound on the wire wheel, and a driving unit driving the wire wheel to rotate, the driving cable extends towards the guide rail on both sides respectively, and is wound on the pulley block, and is engaged to form a closed cable path, the driving cable synchronously pulls the sunshade curtain assembly to close or open from both sides, compared with the traditional sunshade curtain, the cable system of the application is a closed cable path, so that the synchronization of the sunshade curtain on both sides is higher, so as to ensure stable operation, low noise, and because the cable system has smaller resistance compared with the transmission flexible shaft structure, a smaller power motor can be selected, so that the weight of the whole sunshade curtain structure can be reduced. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a structure schematic view of the sunshade curtain assembly in a closed state of the utility model;

[0021] Figure 2 It is a structure schematic view of the sunshade curtain assembly in an open state of the utility model;

[0022] Figure 3 It is a structure schematic view of the cable assembly and the pulley block cooperation of the utility model;

[0023] Figure 4 It is a structure schematic view of the sunshade curtain assembly of the utility model;

[0024] Figure 5 It is a sectional view of the sunshade curtain assembly of the utility model;

[0025] Figure 6 It is a structure schematic view of the driving cable and the sliding block cooperation of the utility model;

[0026] Figure 7 It is a structure schematic view of the Figure 6 It is a local enlarged view of A in the utility model;

[0027] Figure 8 It is a structure schematic view of the pulley block of the utility model;

[0028] In the figure: 1, guide rail; 2, front seat frame; 3, rear cross beam; 4, sunshade curtain assembly; 5, cable assembly; 6, pulley set; 1.1, wire reel; 1.2, driving cable; 1.3, driving unit; 1.4, self-winding structure; 2.1, left slide rail; 2.2, right slide rail; 2.3, first guide wheel; 2.4, second guide wheel; 2.5, third guide wheel; 3.1, first extension end; 3.2, second extension end; 3.3, first path; 3.4, second path; 4.1, sliding groove; 4.2, sliding block; 4.3, connecting plate; 4.4, connecting convex part; 5.1, first connecting groove; 5.2, second connecting groove; 5.3, clamping block; 5.4, clamping sleeve; 5.5, elastic element; 5.6, limiting convex part; 6.1, mounting seat; 6.2, guide wheel; 6.3, rotating convex part; 6.4, rotating groove; 6.5, guide groove; 7.1, reel; 7.2, sunshade curtain; 7.3, recovery spring; 7.4, limiting hook; DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0030] It should be understood that although the terms upper, middle, lower, top end, one end, etc. appear in the present text to describe various elements, these elements are not limited by these terms. These terms are only used to distinguish the elements from each other for the sake of understanding, and are not used to define any direction or sequence limitation.

[0031] As Figures 1-8 shown, a closed-loop cable-driven electric sunshade curtain includes a guide rail 1, a front seat frame 2 arranged at one end of the guide rail 1, and a rear cross beam 3 arranged at the other end of the guide rail 1, the rear cross beam 3 is provided with a sunshade curtain assembly 4, and the front seat frame 2 is provided with a cable assembly 5 for driving the sunshade curtain assembly 4 to open or close, the sunshade curtain assembly 4 is closed and opened by the cable assembly 5.

[0032] Specifically, the rear cross beam 3 and the guide rail 1 are provided with a pulley set 6, the cable assembly 5 includes a wire wheel 1.1, a driving cable 1.2 wound on the wire wheel 1.1, and a driving unit 1.3 for driving the wire wheel 1.1 to rotate, the driving cable 1.2 extends towards the guide rails 1 on both sides respectively, and is wound on the pulley set 6 and connected to form a closed cable path, the sunshade curtain assembly 4 is provided with a self-winding structure 1.4, so that the sunshade curtain assembly 4 has a self-winding force, and the spreading end of the sunshade curtain assembly 4 is connected with the driving cable 1.2, and the driving unit 1.3 drives the wire wheel 1.1 to rotate clockwise or counterclockwise, so that the driving cable 1.2 drives the sunshade curtain assembly 4 to wind or open.

[0033] During operation, the driving cable 1.2 synchronously pulls the sunshade curtain assembly 4 from both sides to close or open, compared with the traditional sunshade curtain 7.2, the synchronism of the sunshade curtain 7.2 on both sides is greatly improved, and the noise is smaller, thereby greatly improving the user experience, and the driving cable 1.2 needs to overcome smaller resistance, so that a smaller power motor can be selected to reduce the weight of the entire sunshade curtain 7.2 structure, thereby increasing the installation convenience.

[0034] As a preferred, the electric sunshade curtain of the present application can be adapted to a sky screen, a side window, and a rear windshield, thereby improving the diversity of use scenarios.

[0035] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 8 As a further explanation of the cooperation between the driving cable 1.2 and the pulley set 6, the guide rail 1 includes a left slide rail 2.1 and a right slide rail 2.2, the pulley set 6 includes a first guide wheel 2.3 arranged on both sides of the front seat frame 2, a second guide wheel 2.4 arranged at one end of the left slide rail 2.1 and the right slide rail 2.2, and a third guide wheel 2.5 arranged at the other end of the left slide rail 2.1 and the right slide rail 2.2, the driving cable 1.2 extends out from both ends and is wound on the first guide wheel 2.3, the second guide wheel 2.4, and the third guide wheel 2.5 of the left slide rail 2.1, the right slide rail 2.2, and the front seat frame 2 respectively, and is connected to form a closed cable path, and the spreading end of the sunshade curtain assembly 4 is connected to the first path 3.3 and the second path 3.4 respectively.

[0036] The first guide wheel 2.3, the second guide wheel 2.4, and the third guide wheel 2.5 are used to limit and guide the driving cable 1.2 at multiple points, thereby improving the stability of the driving cable 1.2 during winding and unwinding, to ensure the stability of the sunshade curtain 7.2 during opening or closing.

[0037] Specifically, the driving cable 1.2 has a first extension end 3.1 and a second extension end 3.2, the first extension end 3.1 first passes through the second guide wheel 2.4 on the right slide rail 2.2, then passes through the third guide wheel 2.5 on the right slide rail 2.2 downward, and then passes through the first guide wheel 2.3 on one side of the front seat frame 2 upward to form a first path 3.3, and the second extension end 2.2 first passes through the first guide wheel 2.3 on the other side of the front seat frame 2, then passes through the third guide wheel 2.5 on the left slide rail 2.1 downward, and then passes through the second guide wheel 2.4 on the left slide rail 2.1 upward to form a second path 3.4, the first path 3.3 and the second path 3.4 are connected to form a closed cable path, the entire driving cable 1.2 is arranged around the first guide wheel 2.3, the second guide wheel 2.4, and the third guide wheel 2.5 to form a closed cable path, and during the opening or closing of the sunshade curtain 7.2, the driving cable 1.2 on the first path 3.3 and the driving cable 1.2 on the second path 3.4 simultaneously drive the sunshade curtain 7.2 to move, thereby ensuring the synchronization of the two sides of the sunshade curtain 7.2 and greatly improving the stability of the sunshade curtain 7.2 during movement.

[0038] As shown in Figure 1 , Figure 2 , Figure 4 , Figure 6 , Figure 7 Further explanation of the sunshade curtain assembly 4 winding and unwinding embodiment, the guide rail 1 is formed with a sliding groove 4.1, the sliding groove 4.1 is provided with a sliding block 4.2, and the sliding block 4.2 is connected with the spreading end of the sunshade curtain 7.2, and the sliding block 4.2 is arranged on the driving cable 1.2.

[0039] During the operation of the sunshade curtain assembly 4, when the wheel drives the driving cable 1.2 to wind and unwind, the sliding block 4.2 slides in the sliding groove 4.1, which ensures the stability of the sliding block 4.2 during sliding, and the sliding block 4.2 is connected with the spreading end of the sunshade curtain assembly 4, so that the sliding block 4.2 can pull the sunshade curtain assembly 4 to close or open, and greatly improves the stability of the sunshade curtain assembly 4 during operation.

[0040] Specifically, the spreading end of the sunshade curtain assembly 4 is provided with a connecting plate 4.3, and the sliding block 4.2 is provided with a connecting protrusion 4.4, and the connecting protrusion 4.4 is connected with the connecting plate 4.3, thereby improving the reliability of the connection between the sunshade curtain assembly 4 and the sliding block 4.2, and ensuring the stability of the sunshade curtain assembly 4 during horizontal spreading or winding, and ensuring the synchronization of the two sides of the sunshade curtain 7.2.

[0041] Further, the sliding block 4.2 is formed with a first connecting groove 5.1 and a second connecting groove 5.2 at two ends, the driving cable 1.2 is provided with a clamping block 5.3, the clamping block 5.3 is arranged in the first connecting groove 5.1, the driving cable 1.2 is provided with a clamping sleeve 5.4, the clamping sleeve 5.4 is arranged in the second connecting groove 5.2, and an elastic element 5.5 is sleeved on the clamping sleeve 5.4, one end of the elastic element 5.5 abuts against the clamping sleeve, and the other end abuts against the second connecting groove 5.2.

[0042] The clamping block 5.3 is arranged on the driving cable 1.2, the clamping block 5.3 is matched with the first connecting groove 5.1 to facilitate the connection of one end of the driving cable 1.2 and the sliding block 4.2, the clamping sleeve 5.4 is arranged at the other end of the driving cable 1.2, and the elastic element 5.5 is arranged on the clamping sleeve, which not only improves the convenience of connection, but also ensures the tension of the driving cable 1.2, so as to avoid the driving cable 1.2 from being separated from the sliding block 4.2.

[0043] As shown in Figure 3 , Figure 8 , as a further explanation of the specific structure of the pulley block 6, the pulley block 6 comprises a first guide wheel 2.3, a second guide wheel 2.4, and a third guide wheel 2.5, the first guide wheel 2.3, the second guide wheel 2.4, and the third guide wheel 2.5 comprise a mounting seat 6.1 and a guide wheel 6.2 arranged on the mounting seat 6.1, the guide wheel 6.2 is formed with a rotating protrusion 6.3, the mounting seat 6.1 is formed with a rotating groove 6.4 for the rotating protrusion 6.3, and the outer periphery of the guide wheel 6.2 is formed with a guide groove 6.5 for the driving cable 1.2.

[0044] The guide wheel 6.2 is installed by the mounting seat 6.1, the rotating protrusion 6.3 on the guide wheel 6.2 is matched with the rotating groove 6.4, so that the guide wheel 6.2 can rotate on the mounting seat 6.1, and the guide groove 6.5 is formed on the guide wheel 6.2, and the driving cable 1.2 is arranged in the guide groove 6.5, so as to further improve the stability of the driving cable 1.2 during the winding and unwinding process.

[0045] As shown in Figure 4 , Figure 5 , as a further explanation of the embodiment of the sunshade curtain assembly 4, the sunshade curtain assembly 4 comprises a winding shaft 7.1 arranged on the rear cross beam 3, and a sunshade curtain 7.2 wound on the winding shaft 7.1, and the self-winding structure 1.4 comprises a recovery spring 7.3 arranged in the winding shaft 7.1, the recovery spring 7.3 is connected at both ends of the winding shaft 7.1, so that the winding shaft 7.1 has a self-winding force.

[0046] During the closing process of the sunshade curtain assembly 4, the recovery spring 7.3 automatically winds with the driving cable 1.2, which ensures the smoothness of the sunshade curtain 7.2 during the winding process.

[0047] As preferred, the rear cross beam 3 is formed with a limiting protrusion 5.6, which extends axially along the sunshade curtain assembly 4 and is located above the sunshade curtain assembly 4, and the limiting protrusion 5.6 is used to limit the sunshade curtain 7.2 above the sunshade curtain 7.2, thereby ensuring the stability of the sunshade curtain assembly 4 during the spreading or rolling process.

[0048] As shown in Figure 1 , Figure 2 In some other embodiments, the front seat frame 2 is formed with a limiting hook 7.4 for the driving cable 1.2 to pass through, and the driving cable 1.2 is arranged in the limiting hook 7.4, thereby avoiding the deviation of the driving cable 1.2 during the winding and unwinding process, and further improving the stability of the driving cable 1.2 during the winding and unwinding process.

[0049] The specific embodiments are only an explanation of the present application, and are not a limitation of the present application, and the person skilled in the art can make modifications to the embodiments without creative contribution after reading the present specification, but as long as the modifications are within the scope of the claims of the present application, they are protected by the patent law.

Claims

1. A closed loop cable drive motorized sunshade screen characterized by, The application relates to a sunshade curtain device, which comprises a guide rail (1), a front seat frame (2) arranged at one end of the guide rail (1), and a rear cross beam (3) arranged at the other end of the guide rail (1), wherein a sunshade curtain assembly (4) is arranged on the rear cross beam (3), and a pull cable assembly (5) for driving the sunshade curtain assembly (4) to open or close is arranged on the front seat frame (2). The rear cross beam (3) and the guide rail (1) are provided with a pulley block (6), the pull cable assembly (5) comprises a wire reel (1.1), a driving pull cable (1.2) wound on the wire reel (1.1), and a driving unit (1.3) for driving the wire reel (1.1) to rotate, the driving pull cable (1.2) extends towards the guide rails (1) on both sides respectively, and the driving pull cable (1.2) is wound on the pulley block (6) and is connected to form a closed loop pull cable path. The sunshade curtain assembly (4) is provided with a self-winding structure (1.4) so that the sunshade curtain assembly (4) has a self-winding force, and the spreading end of the sunshade curtain assembly (4) is connected with the driving pull cable (1.2), the driving unit (1.3) drives the wire reel (1.1) to rotate clockwise or counterclockwise, so that the driving pull cable (1.2) drives the sunshade curtain assembly (4) to wind or open.

2. A closed loop cable drive electric sunshade curtain according to claim 1, characterized in that, The guide rail (1) comprises a left slide rail (2.1) and a right slide rail (2.2), the pulley block (6) comprises a first guide wheel (2.3) arranged on both sides of the front seat frame (2), a second guide wheel (2.4) arranged at one end of the left slide rail (2.1) and the right slide rail (2.2), and a third guide wheel (2.5) arranged at the other end of the left slide rail (2.1) and the right slide rail (2.2), and the two ends of the driving pull cable (1.2) cross and extend and are wound on the first guide wheel (2.3), the second guide wheel (2.4) and the third guide wheel (2.5) of the left slide rail (2.1), the right slide rail (2.2) and the front seat frame (2) respectively, and are connected to form a closed pull cable path.

3. A closed loop cable drive electric sunshade curtain according to claim 2, characterized in that The driving pull cable (1.2) has a first extension end (3.1) and a second extension end (3.2), the first extension end (3.1) first passes through the second guide wheel (2.4) on the right slide rail (2.2), then passes through the third guide wheel (2.5) on the right slide rail (2.2) downward, and then passes through the first guide wheel (2.3) on one side of the front seat frame (2) upward to form a first path (3.3), and the second extension end (3.2) first passes through the first guide wheel (2.3) on the other side of the front seat frame (2), then passes through the third guide wheel (2.5) on the left slide rail (2.1) downward, and then passes through the second guide wheel (2.4) on the left slide rail (2.1) upward to form a second path (3.4), the first path (3.3) and the second path (3.4) are connected to form a closed pull cable path, and the spreading end of the sunshade curtain assembly (4) is connected to the first path (3.3) and the second path (3.4) respectively.

4. A closed loop cable drive electric sunshade curtain according to claim 1, characterized in that, The guide rail (1) is provided with a sliding groove (4.1), the sliding groove (4.1) is provided with a sliding block (4.2), the sliding block (4.2) is connected with the spreading end of the sunshade curtain (7.2), and the sliding block (4.2) is arranged on the driving cable (1.2).

5. A closed loop cable drive electric sunshade curtain according to claim 4, characterized in that The spreading end of the sunshade curtain assembly (4) is provided with a connecting plate (4.3), and the sliding block (4.2) is provided with a connecting convex portion (4.4), the connecting convex portion (4.4) is connected with the connecting plate (4.3).

6. A closed loop cable drive electric sunshade curtain according to claim 4, characterized in that, The sliding block (4.2) is provided with a first connecting groove (5.1) and a second connecting groove (5.2) at two ends, the driving cable (1.2) is provided with a clamping block (5.3), the clamping block (5.3) is arranged in the first connecting groove (5.1), the driving cable (1.2) is provided with a clamping sleeve (5.4), the clamping sleeve (5.4) is arranged in the second connecting groove (5.2), and the clamping sleeve (5.4) is provided with an elastic element (5.5), one end of the elastic element (5.5) abuts against the clamping sleeve, and the other end abuts against the second connecting groove (5.2).

7. A closed loop cable drive electric sunshade curtain according to claim 1, characterized in that, The rear cross beam (3) is provided with a limiting convex portion (5.6), the limiting convex portion (5.6) extends in the axial direction of the sunshade curtain assembly (4) and is located above the sunshade curtain assembly (4).

8. A closed loop cable drive electric sunshade curtain according to claim 2, characterized in that, The first guide wheel (2.3), the second guide wheel (2.4) and the third guide wheel (2.5) comprise a front seat frame (2) and a guide wheel (6.2) arranged on the front seat frame (2), the guide wheel (6.2) is provided with a rotating convex portion (6.3), the front seat frame (2) is provided with a rotating groove (6.4) for arranging the rotating convex portion (6.3), and the outer periphery of the guide wheel (6.2) is provided with a guide groove (6.5) for arranging the driving cable (1.2).

9. A closed loop cable drive electric sunshade curtain according to claim 1, characterized in that, The sunshade curtain assembly (4) comprises a reel (7.1) arranged on the rear cross beam (3) and a sunshade curtain (7.2) wound on the reel (7.1), and the self-recovery structure (1.4) comprises a recovery spring (7.3) arranged in the reel (7.1), the recovery spring (7.3) is connected at two ends of the reel (7.1), so that the reel (7.1) has a self-recovery force.

10. A closed loop cable drive electric sunshade curtain according to claim 1, characterized in that, The front seat frame (2) is provided with a limiting hook (7.4) for the driving cable (1.2) to pass through.

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