A sunshade assembly and a glass assembly

Abstract

The utility model discloses a sunshade curtain assembly, it includes drive mechanism, drive mechanism includes speed reducer and motor, the output shaft of motor extends along first axis and is connected with speed reducer, and speed reducer is connected with support rod still, support rod extends along first axis, and support rod, speed reducer and motor are sequentially arranged on first axis, wherein, the motor is used for driving speed reducer and support rod rotate around first axis. Accordingly, the utility model discloses a glass assembly, it includes the sunshade curtain assembly of utility model above. In the utility model, the sunshade curtain assembly constructs " motor - speed reducer - support rod " three in one coaxial direct drive transmission chain, it can reduce the space occupation while, reduce the eccentricity phenomenon of motor when moving, reduce the possibility of motor vibration and abnormal sound, ensure the stability of motor in the operation process.

Description

Technical Field

[0001] This utility model relates to the field of automotive sunshade technology, and in particular to a sunshade assembly and glass assembly. Background Technology

[0002] In recent years, with the rapid development of the automotive industry, in order to meet customers' demand for sunshade functions, modern cars are generally equipped with electric sunshades. These electric sunshades work together with the car sunroof to achieve the effect of blocking sunlight and heat insulation, providing drivers and passengers with a more intelligent and comfortable driving environment.

[0003] Currently, manufacturers typically categorize electric sunshades into two types based on their drive mechanism: direct-drive electric sunshades and non-direct-drive electric sunshades. Direct-drive sunshades usually employ an L-shaped motor drive unit. This L-shaped motor drive unit directly acts on the roller end of the sunshade through a worm gear transmission device to drive the roller to rotate. The movement of a steel wire or synchronous belt is used to synchronously control the opening and closing of the sunshade, thereby achieving the opening or closing control of the sunshade.

[0004] See Figure 1 As shown, in current technology, the motor of this L-shaped motor drive device outputs torque through a worm gear reducer and transmits the torque to a synchronous pulley or spool to achieve transmission of the entire system. However, research has found that due to design limitations, both the reducer and the motor of this L-shaped motor drive device can only operate in the X-direction (see...). Figure 1 The motor's extended cantilever is quite long, occupying both the X and Y axes (see [reference]). Figure 1 The space provided by the sunroof limits the field of vision in practical applications.

[0005] Meanwhile, the external gearbox of the L-shaped motor drive requires additional space, which results in a bulky overall structure and is not conducive to a compact interior design. Furthermore, due to the large number of intermediate transmission links, such as worm gears and other components, energy loss and poor synchronization can occur to some extent.

[0006] In addition, such as Figure 1 As shown, when the existing L-shaped motor drive device is actually installed on the sunshade assembly, the long cantilever of the motor makes it prone to swaying and abnormal noise during motor operation, which affects the service life. Utility Model Content

[0007] The technical problem to be solved by this utility model is: This utility model discloses a new type of sunshade curtain assembly to solve the problems of large structure, large space occupation and easy swaying and abnormal noise when the existing L-type motor drive device is used.

[0008] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a sunshade assembly, which includes a drive mechanism, the drive mechanism including a reducer and a motor, the output shaft of the motor extending along a first axis and connected to the reducer, and the reducer is also connected to a support rod, the support rod extending along the first axis, and the support rod, reducer and motor being arranged sequentially on the first axis; wherein, the motor is used to drive the reducer and the support rod to rotate around the first axis.

[0009] In the above-mentioned technical solution of this utility model, a new sunshade curtain assembly is disclosed. This sunshade curtain assembly can directly extend the output shaft of the motor along the first axis and connect it to the reducer. At the same time, it ensures that the reducer is directly connected to the support rod extending along the first axis, so as to use the support rod as the core transmission shaft to establish a coaxial direct drive transmission. This can eliminate redundant intermediate transmission links such as traditional couplings and gear pairs between the motor and the reducer, significantly reduce the phase deviation of the movement on both sides of the subsequent sunshade curtain assembly, and improve the synchronization accuracy and running stability of the subsequent curtain unfolding / rolling process.

[0010] It is important to emphasize that, compared to traditional L-shaped motor drive devices, the drive mechanism designed for this sunshade assembly not only achieves the aforementioned smooth drive but also simplifies its structure. It eliminates the cantilever structure used in L-shaped motor drive devices, which reduces space occupation, reduces motor sway during movement, lowers the possibility of motor vibration and abnormal noise, and ensures the stability of the motor during operation.

[0011] In other words, the drive mechanism designed in this utility model solves the problems of large structure, large space occupation, and easy swaying and abnormal noise of existing L-type motor drive devices. It constructs a three-in-one coaxial direct drive transmission chain of "motor-reducer-support rod" to obtain a more stable and reliable drive solution. The drive mechanism has better practical application effect, longer service life, and smaller space occupation in the vehicle. It has good promotion prospects and application value.

[0012] Furthermore, the sunshade assembly described in this utility model also includes a roller, the roller having a through cavity extending along the first axis, and the support rod being disposed in the through cavity.

[0013] In the above-mentioned technical solution of this utility model, in practical application, the sunshade assembly of this utility model is also provided with a roller for rolling up the curtain. The roller can also be configured to extend along the first axis, and a through cavity extending along the first axis is opened in the roller so as to accommodate the support rod and protect the support rod. Based on this design, it can ensure that the structure of the sunshade assembly is compact and does not occupy too much space on the car roof, while ensuring the reliability of the movement of the support rod as the core drive shaft.

[0014] Furthermore, in the sunshade assembly described in this utility model, at least a portion of the reducer extends from one end of the roller into the through cavity and is connected to the support rod.

[0015] In the above-mentioned technical solution of this utility model, the reducer can be hidden in the through cavity of the roller, so as to be placed directly using the cavity inside the roller. It does not need to occupy external space, which can reduce the overall size of the sunshade assembly to a certain extent and provide more space for the layout of the sunroof or interior of the vehicle.

[0016] Furthermore, the sunshade assembly described in this utility model also includes an elastic pre-tensioning mechanism, which includes a spring fixing seat and a spring. The spring fixing seat is rotatably sleeved on the support rod, and at least part of the spring fixing seat is connected to the roller. The spring is sleeved on the support rod, and one end of the spring is connected to the support rod, and the other end is connected to the spring fixing seat.

[0017] Furthermore, in the sunshade assembly described in this utility model, at least a portion of the spring fixing seat extends from the end of the roller shaft away from the motor, and the spring fixing seat is fixed to the roller shaft.

[0018] In the above-mentioned technical solution of this utility model, a spring pre-tensioning mechanism is also specifically provided. The spring fixing seat and the spring of the spring pre-tensioning mechanism can both extend into the through cavity of the roller from the other end of the roller away from the motor, and control one end of the spring to be connected to the support rod and the other end to be connected to the spring fixing seat, so that adjusting the position of the spring fixing seat can produce a winding effect on the spring. In practical application, the spring fixing seat can rotate freely on the support rod. By rotating the spring fixing seat, the spring connected to the spring fixing seat can be rotated a certain number of turns, thereby generating torque for winding, and then transmitting the torque from the spring fixing seat to the roller with the curtain attached, so that the curtain fixed on the roller always remains taut.

[0019] It should be noted that in practical applications, there are multiple options for fixing the spring fixing seat and the roller. For example, in some specific embodiments, there are fixed connection methods such as snap-fit ​​or locking. These can be selected according to specific usage requirements, and this utility model does not impose any special limitations on them.

[0020] Furthermore, the sunshade assembly described in this utility model also includes a motor synchronous pulley, which is located on the side of the support rod near the motor and connected to the reducer; wherein, under the drive of the motor, the reducer, the support rod and the motor synchronous pulley rotate synchronously around the first axis.

[0021] Furthermore, the sunshade assembly described in this utility model also includes a roller synchronous pulley, which is located on the side of the support rod away from the motor and connected to the support rod, so that the roller synchronous pulley and the support rod rotate synchronously around the first axis.

[0022] Furthermore, the sunshade assembly described in this utility model also includes a curtain fabric and a winding assembly. The winding assembly includes a pull rod and guide rails and synchronous transmission units on both sides of the pull rod. The pull rod is connected to the curtain fabric. The synchronous transmission unit includes a driven wheel, a synchronous belt, and a slider. The slider is slidably disposed on the guide rail on the corresponding side, and both ends of the pull rod are respectively connected to the sliders of the synchronous transmission units on both sides. The synchronous belt of the synchronous transmission unit on one side of the pull rod meshes with the synchronous wheel of the motor and the driven wheel on the corresponding side, and the synchronous belt is connected to the slider on the corresponding side. The synchronous belt of the synchronous transmission unit on the other side of the pull rod meshes with the synchronous wheel of the roller and the driven wheel on the corresponding side, and the synchronous belt is connected to the slider on the corresponding side. The slider is used to drive the pull rod to move along the extension direction of the guide rail under the drive of the synchronous belt.

[0023] Furthermore, the sunshade assembly described in this utility model also includes an elastic coupling, which is disposed between the motor and the reducer, and the output shaft of the motor is connected to the reducer through the elastic coupling.

[0024] Furthermore, in the sunshade assembly described in this utility model, the reducer includes at least one of the following: an external rotor reducer, a harmonic reducer, and a planetary gear reducer.

[0025] Furthermore, in the sunshade assembly described in this utility model, the reducer is characterized by having a protrusion on the side near the support rod, and the support rod is correspondingly provided with a groove that matches the protrusion, and the protrusion and the groove are in a concave-convex fit.

[0026] Accordingly, this utility model also discloses a glass assembly, which may specifically include the sunshade assembly described above, so that the sunshade assembly can be configured to correspond to the glass on the glass assembly, thereby achieving its own beneficial effects. In practical applications, the glass in the glass assembly may specifically be a sunroof, windshield, rear window, and side window in the automotive field.

[0027] The beneficial effects of this utility model are as follows: The drive mechanism of this sunshade assembly constructs a three-in-one coaxial direct drive transmission chain of "motor-reducer-support rod" to obtain a more stable and reliable drive solution. The actual application effect of this drive mechanism is better, and the structure is simplified. It eliminates the cantilever structure used in traditional L-type motor drive devices, which can reduce the space occupation, reduce the sway phenomenon of motor during movement, reduce the possibility of motor vibration and abnormal noise, ensure the stability of motor during operation, have a long service life, and occupy less space in the vehicle. It has good promotion prospects and application value.

[0028] Accordingly, the glass assembly designed in this utility model adopts the sunshade assembly described above, which also has the above-mentioned advantages and beneficial effects. Attached Figure Description

[0029] Figure 1 The diagram schematically illustrates the application of a conventional L-shaped motor drive unit in a sunshade assembly.

[0030] Figure 2 This is a schematic diagram illustrating the structural principle of the drive mechanism of the sunshade assembly described in this utility model under one embodiment.

[0031] Figure 3 This is a schematic diagram of the support rod, reducer, and motor of the drive mechanism in one embodiment of the sunshade assembly described in this utility model.

[0032] Label Explanation:

[0033] 1. Motor; 11. First shaft;

[0034] 2. Reducer; 21. Protrusion;

[0035] 3. Support rod; 31. Groove;

[0036] 4. Scroll; 41. Through cavity;

[0037] 5. Spring retainer;

[0038] 6. Spring;

[0039] 7. Motor synchronous pulley;

[0040] 8. Reel timing pulley;

[0041] 9. Electronic control unit. Detailed Implementation

[0042] To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0043] Please refer to Figure 1 As shown, the study found that the existing traditional L-shaped motor drive device requires a cantilever structure for the gearbox and motor, and the external gearbox requires additional space, which is not conducive to use in the automotive field; in addition, because the cantilever of the motor is long, it is easy to generate swaying and abnormal noise when the motor is working, which affects the service life and the user's driving experience.

[0044] Therefore, such as Figure 2 and Figure 3 As shown, in this embodiment, the present invention designs a new sunshade assembly, which includes a drive mechanism, specifically including a reducer 2 and a motor 1, and the output shaft of the motor 1 extends along a first axis 11 and is connected to the reducer 2; wherein, the reducer 2 is also connected to a support rod 3, which extends along the first axis 11, and the support rod 3, the reducer 2 and the motor 1 are arranged sequentially on the first axis 11; wherein, the motor 1 is also communicatively connected to an electronic control unit (ECU) 9, so that under the control of the electronic control unit 9, the motor 1 is controlled to drive the reducer 2 and the support rod 3 to rotate around the first axis 11.

[0045] Therefore, in the sunshade assembly designed in this utility model, by using the support rod 3 as the core transmission shaft, a three-in-one coaxial direct drive transmission chain of "motor-reducer-support rod" can be established to realize coaxial direct drive transmission. This eliminates redundant intermediate transmission links such as traditional couplings and gear pairs between motor 1 and reducer 2, and significantly reduces the motion phase deviation on both sides of the subsequent curtain, thereby improving the synchronization accuracy and running stability of the subsequent curtain during the unfolding / rolling process.

[0046] Will Figure 1 and Figure 2 By comparing the designed drive mechanism, it is easy to see that, compared with the traditional L-shaped motor drive device, the drive mechanism of the sunshade assembly designed in this utility model not only achieves the above-mentioned smooth drive, but also simplifies its own structure. It eliminates the cantilever structure used in the L-shaped motor drive device, which can reduce the space occupation and reduce the sway phenomenon of motor 1 during movement, thereby effectively reducing the possibility of motor 1 vibration and abnormal noise, and ensuring the stability of motor 1 during operation.

[0047] In practical applications, the sunshade assembly designed in this utility model is also specifically provided with a roller 4, which is used to attach one end of the curtain fabric and facilitates the subsequent rolling up of the curtain fabric; wherein, the roller 4 is specifically provided with a through cavity 41 extending along the first axis 11, which can be used to accommodate the support rod 3, thereby using the roller 4 to protect the support rod 3, ensuring the reliability of the movement of the support rod 3 as the core conventional axis, and avoiding the problem of occupying vehicle interior space caused by placing the roller 4 and the support rod 3 separately.

[0048] Accordingly, such as Figure 3 As shown, in this embodiment, the reducer 2 in the drive mechanism can also extend from one end of the spool 4 into the through cavity 41 to connect with the support rod 3 in the through cavity 41. In this embodiment, the reducer 2 can be provided with a protrusion 21 on the side near the support rod 3, and the support rod 3 is provided with a groove 31 that matches the protrusion 21, so that the protrusion 21 and the groove 31 can be matched and fitted together. The support rod 3 and the reducer 2 can be rigidly fixed with screws to ensure a stable and reliable connection.

[0049] By concealing the reducer 2 within the through cavity 41 of the roller 4, the space within the through cavity 41 of the roller 4 can be effectively utilized, so that the reducer 2 does not need to occupy additional external space, thereby reducing the overall size of the sunshade assembly to a certain extent and providing more space for the layout of the sunroof or interior.

[0050] In addition, it should be noted that, as Figure 2 As shown, in this embodiment, the sunshade assembly is further provided with a spring pretensioning mechanism. The spring pretensioning mechanism may specifically include a spring fixing seat 5 and a spring 6. Both the spring fixing seat 5 and the spring 6 can extend from the other end of the roller 4 away from the motor 1 into the through cavity 41 of the roller 4, so that the spring fixing seat 5 can be rotatably sleeved on the support rod 3 and can be connected to the roller 4. At this time, the spring 6 is simultaneously sleeved on the support rod 3, and one end of the spring 6 can be specifically connected to the support rod 3 by a rivet, while the other end can be screwed into the spring fixing seat 5 to establish a connection with the spring fixing seat 5. Based on this connection relationship, the operator can adjust the position of the spring fixing seat 5, for example, by controlling the rotation of the spring fixing seat 5, to produce a winding effect on the spring 6.

[0051] like Figure 2As shown, in this embodiment, in order to facilitate the manufacturer to adjust the winding torque of the spring 6, when the above-mentioned spring fixing seat 5 is actually set, the convex block of the spring fixing seat 5 can be locked and fixed with the U-shaped groove at the end of the through cavity 41 of the roller 4 away from the motor 1, and part of the spring fixing seat 5 extends out from the roller 4; in practical application, since the spring fixing seat 5 can rotate freely on the support rod 3, the operator only needs to rotate the part of the spring fixing seat 5 that extends out from the roller 4 to drive the spring 6 to rotate a certain number of turns, so that the spring 6 curls and generates torque, thereby transmitting the torque from the spring fixing seat 5 to the roller 4 with the curtain attached, so that the curtain fixed on the roller 4 always remains taut.

[0052] It should be noted that further references are available. Figure 2 In this embodiment, the drive mechanism of the sunshade assembly also specifically transmits the kinetic energy of the motor 1, reducer 2 and support rod 3 to the winding assembly through the motor synchronous pulley 7 and the roller synchronous pulley 8, thereby using the winding assembly to unfold and retract the curtain.

[0053] like Figure 2 As shown, in this embodiment, the motor synchronous pulley 7 is located on the side of the support rod 3 near the motor 1 and is connected to the reducer 2. The reel synchronous pulley 8 is located on the other side of the support rod 3 away from the motor 1 and is connected to the support rod 3. Based on this structural design of the drive mechanism, under the drive of the motor 1, the reducer 2, support rod 3, motor synchronous pulley 7, and reel synchronous pulley 8 can all rotate synchronously around the first axis 11.

[0054] Accordingly, in practical applications, the sunshade assembly of this utility model is further provided with a curtain and a winding assembly. The winding assembly includes a frame body, and the frame body is provided with a pull rod, a guide rail and a synchronous transmission unit. The synchronous transmission unit is used to transmit the kinetic energy of the drive mechanism to drive the pull rod to slide on the guide rail, thereby cooperating with the roller 4 to pull and wind up and unwind the curtain, so as to realize the unfolding and retraction of the curtain.

[0055] It should be noted that in practical applications, the main frame can be constructed using metal beams and guide rails, and the synchronous transmission unit is used to transmit the movement of the motor synchronous pulley 7 and the reel synchronous pulley 8 to the tie rod, thereby driving the tie rod to slide on the guide rail. Of course, in some specific embodiments, guide rails and synchronous transmission units can be provided on both the left and right sides of the main frame, that is, the motor synchronous pulley 7 and the reel synchronous pulley 8 can each be matched with a synchronous transmission unit to synchronously transmit their rotation process around the first axis 11. Operators can select according to specific design requirements, and this utility model does not impose any special limitations on this.

[0056] In this utility model, the aforementioned synchronous transmission unit specifically includes a driven wheel, a synchronous belt, and a slider. The synchronous belt meshes with the motor synchronous pulley 7 and the driven wheel, respectively. The pull rod is connected to the curtain fabric. The slider is slidably mounted on the guide rail on the corresponding side, and both ends of the pull rod are connected to the sliders of the synchronous transmission units on both sides, respectively. The synchronous belt of the synchronous transmission unit on one side of the pull rod meshes with the motor synchronous pulley 7 and the driven wheel on the corresponding side, and the synchronous belt is also connected to the slider on the corresponding side. Meanwhile, the synchronous belt of the synchronous transmission unit on the other side of the pull rod meshes with the roller synchronous pulley 8 and the driven wheel on the corresponding side, and the synchronous belt is connected to the slider on the corresponding side. The slider is used to drive the pull rod to move along the extension direction of the guide rail under the drive of the synchronous belt.

[0057] In practical applications, the synchronous belt can be a rubber ring gear belt. For example, the synchronous belt of the synchronous transmission unit on one side of the pull rod can mesh with the motor synchronous pulley 7 and the driven pulley respectively. When the motor synchronous pulley 7 rotates clockwise or counterclockwise under the drive of the motor 1, the synchronous belt meshing with it moves accordingly, driving the driven pulley to rotate together. At this time, the slider is tightly engaged with the synchronous belt and connected to the pull rod with the curtain attached, so that during the movement of the synchronous belt, the slider can move back and forth along the extension direction of the guide rail, driving the pull rod to move together.

[0058] In other words, in practical applications, the operator can first rotate the spring fixing seat 5 at one end of the roller 4 to make the spring 6 curl and generate torque, thereby ensuring that the curtain attached to the roller 4 remains taut. Then, the operator controls the motor 1 in the drive mechanism to work, and the output shaft of the motor 1 rotates clockwise or counterclockwise to drive the reducer 2, support rod 3, motor synchronous pulley 7 and roller synchronous pulley 8 to rotate together. At this time, the synchronous pulley can transmit torque to the synchronous belt of the synchronous transmission unit, so that the synchronous belt can flexibly perform circular forward and reverse movements. This will drive the slider connected to the synchronous belt to move back and forth in the extension direction of the guide rail. The slider is connected to the pull rod, so the curtain attached to the pull rod will move with the movement of the slider, realizing the unfolding and retraction of the curtain.

[0059] Of course, in practical applications, depending on the specific usage requirements, an elastic coupling, such as a plum blossom coupling or a diaphragm coupling, can be added between the motor 1 and the reducer 2 in this sunshade assembly designed in this utility model. It can replace the existing rigid connection and compensate for axial / radial installation deviations through the elastic coupling, and absorb the impact load when the motor 1 starts and stops.

[0060] Furthermore, in this embodiment, the reducer 2 in the aforementioned drive mechanism can be specifically selected as an external rotor reducer; of course, in some specific embodiments, the aforementioned external rotor reducer can be specifically replaced by a harmonic reducer or a planetary gear reducer; wherein, the harmonic reducer achieves a high reduction ratio through the elastic deformation of the flexible wheel and the rigid wheel, and is suitable for scenarios with higher requirements for transmission accuracy; the planetary gear reducer shares the load through multi-stage gear meshing, and is suitable for high torque output requirements.

[0061] Furthermore, in practical applications, the sunshade assembly described above can be specifically applied to a glass assembly, allowing the sunshade assembly to be configured to correspond with the glass on the glass assembly, thereby achieving its beneficial effects. Specifically, in practical applications, the glass in the glass assembly can be a sunroof, windshield, rear window, or side window in a vehicle.

[0062] In summary, the drive mechanism of this sunshade assembly features a three-in-one coaxial direct-drive transmission chain of "motor-reducer-support rod," resulting in a more stable and reliable drive solution. This drive mechanism offers superior practical application performance and a simplified structure. It eliminates the cantilever structure used in traditional L-shaped motor drive devices, reducing space occupation while minimizing motor sway during movement, lowering the possibility of motor 1 vibration and abnormal noise, ensuring the stability of motor 1 during operation, and exhibiting a long service life. Furthermore, it occupies minimal space within the vehicle, demonstrating promising prospects and application value.

[0063] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A sunshade curtain assembly, characterized in that, The device includes a drive mechanism comprising a reducer and a motor. The output shaft of the motor extends along a first axis and is connected to the reducer. The reducer is also connected to a support rod that extends along the first axis. The support rod, reducer, and motor are sequentially arranged on the first axis. The motor is used to drive the reducer and support rod to rotate around the first axis.

2. The sunshade assembly according to claim 1, characterized in that, It also includes a reel having a through cavity extending along the first axis, and the support rod is disposed in the through cavity.

3. The sunshade assembly according to claim 2, characterized in that, At least a portion of the reducer extends from one end of the reel into the through cavity and is connected to the support rod.

4. The sunshade assembly according to claim 2, characterized in that, It also includes an elastic preload mechanism, which comprises a spring fixing seat and a spring. The spring fixing seat is rotatably sleeved on the support rod, and at least part of the spring fixing seat is connected to the roller. The spring is sleeved on the support rod, and one end of the spring is connected to the support rod, and the other end is connected to the spring fixing seat.

5. The sunshade assembly according to claim 4, characterized in that, At least a portion of the spring retainer extends from the end of the reel away from the motor, and the spring retainer is fixed to the reel.

6. The sunshade assembly according to claim 1, characterized in that, It also includes a motor synchronizing pulley, which is located on the side of the support rod near the motor and connected to the reducer; wherein, under the drive of the motor, the reducer, the support rod and the motor synchronizing pulley rotate synchronously around the first axis.

7. The sunshade assembly according to claim 6, characterized in that, It also includes a reel synchronous pulley, which is located on the other side of the support rod away from the motor and connected to the support rod, so that the reel synchronous pulley and the support rod rotate synchronously around the first axis.

8. The sunshade assembly according to claim 7, characterized in that, It also includes a curtain fabric and a winding assembly. The winding assembly includes a pull rod and guide rails and synchronous transmission units on both sides of the pull rod. The pull rod is connected to the curtain fabric. The synchronous transmission unit includes a driven wheel, a synchronous belt, and a slider. The slider is slidably disposed on the guide rail on the corresponding side, and both ends of the pull rod are respectively connected to the sliders of the synchronous transmission units on both sides. The synchronous belt of the synchronous transmission unit on one side of the pull rod meshes with the motor synchronous pulley and the driven wheel on the corresponding side, and the synchronous belt is connected to the slider on the corresponding side. The synchronous belt of the synchronous transmission unit on the other side of the pull rod meshes with the roller synchronous pulley and the driven wheel on the corresponding side, and the synchronous belt is connected to the slider on the corresponding side. The slider is used to drive the pull rod to move along the extension direction of the guide rail under the drive of the synchronous belt.

9. The sunshade assembly according to claim 1, characterized in that, It also includes a flexible coupling, which is disposed between the motor and the reducer, and the output shaft of the motor is connected to the reducer through the flexible coupling.

10. The sunshade assembly according to claim 1, characterized in that, The reducer includes at least one of the following: an external rotor reducer, a harmonic reducer, and a planetary gear reducer.

11. The sunshade assembly according to claim 1, characterized in that, The reducer has a protrusion on the side near the support rod, and the support rod has a corresponding groove that matches the protrusion, with the protrusion and the groove fitting together.

12. A glass assembly, characterized in that, Includes the sunshade assembly as described in any one of claims 1-11.

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