Driving assembly with clutch structure and manual-automatic integrated privacy curtain

Abstract

A driving assembly with a clutch structure comprises a shell, a driving wheel, a rotating piece, balls and a motor, the driving wheel and the rotating piece are both rotationally connected into the shell and are coaxial, the driving wheel is driven by the motor to rotate, a circular groove is formed in the side, facing the driving wheel, of the rotating piece, and the balls are arranged in the circular groove. The driving wheel is provided with an eccentric wheel extending into the circular groove, the ball is located between the circular groove and the eccentric wheel, the inner circumferential wall of the circular groove is provided with an embedding groove allowing the ball to be clamped in, and the outer diameter of the ball is smaller than the maximum radial distance between the eccentric wheel and the circular groove and larger than the minimum radial distance between the eccentric wheel and the embedding groove. According to the driving assembly with the clutch structure in the scheme, free switching between automatic operation and manual operation is achieved, damage to the driving assembly when a user forcibly moves a blind is avoided, the service life is prolonged, and the user experience is improved. The utility model further provides a manual and automatic integrated privacy curtain.

Description

Technical Field

[0001] This utility model relates to the technical field of curtain drive assembly, specifically to a drive assembly with a clutch structure, and a privacy curtain that is both manual and automatic. Background Technology

[0002] In recent years, the development of new energy vehicles has been rapid, leading to a surge in demand for customized in-vehicle components. For passengers with strong privacy requirements, some models incorporate curtain assemblies between windows or between the front and rear seats to provide privacy. However, current curtain assemblies typically require manual adjustment, which is not intelligent enough and negatively impacts the passenger experience.

[0003] To address these issues, blinds with integrated drive assemblies have been introduced to the market, enabling automated adjustment of the blinds. However, while conventional drive assemblies achieve automated adjustment, they also mean that users cannot manually move the blinds. Forcibly moving the blinds often damages the drive assembly. Utility Model Content

[0004] The purpose of this invention is to solve the problem in the prior art where the curtain with the integrated drive assembly cannot be moved manually by the user, and if the user forcibly moves the curtain, it often damages the drive assembly.

[0005] To solve the above problems, this utility model provides a drive assembly with a clutch structure, including a housing, a drive wheel, a rotating component, a ball bearing, and a motor. The drive wheel and the rotating component are rotatably connected within the housing and are coaxial with each other. The drive wheel is driven to rotate by the motor. The rotating component has a circular groove on the side facing the drive wheel. The drive wheel has an eccentric wheel extending into the circular groove. The ball bearing is located between the circular groove and the eccentric wheel. The inner peripheral wall of the circular groove has a groove for the ball bearing to be inserted. The outer diameter of the ball bearing is smaller than the maximum radial distance between the eccentric wheel and the circular groove and larger than the minimum radial distance between the eccentric wheel and the groove.

[0006] In the above scheme, the drive wheel serves as the input end for receiving power from the motor, and the rotating component serves as the output end. The clutch transmission between the drive wheel and the rotating component is achieved through an eccentric wheel and ball bearings. When driven by the motor, the drive wheel rotates synchronously, causing the eccentric wheel to rotate within the circular groove. The ball bearings are pushed into the groove by the eccentric wheel. Due to the pressure and friction between the ball bearings and the groove, the eccentric wheel can push the ball bearings to drive the rotating component to rotate synchronously, thus transmitting the motor's rotational power to the rotating component and outputting it, subsequently enabling automatic adjustment of the curtain. When the user manually adjusts the curtain, the rotating component rotates under the user's external force. At this time, the circular groove rotates relative to the eccentric wheel, and the ball bearings disengage from the groove and enter a position where the radial distance between the eccentric wheel and the circular groove is greater than the outer diameter of the ball bearings. In this case, the rotating component idles relative to the eccentric wheel and the drive wheel, avoiding damage to the motor. Compared with existing technologies, the drive assembly with clutch structure in the above solution enables free switching between automatic and manual modes, avoiding damage to the drive assembly when the user forcibly moves the curtain, thus improving service life and user experience.

[0007] In an improved embodiment, the slots are two in number and symmetrically distributed, the eccentric wheel is elliptical, and the balls are two in number, each separated by the eccentric wheel on one side of a circular slot. The elliptical eccentric wheel, when rotating, can better push the two balls into the two slots of the circular slot, enhancing the stability and durability of the clutch structure and increasing the torque that can be transmitted between the eccentric wheel and the rotating shaft.

[0008] In an improved embodiment, the housing is further provided with an annular plate, which is disposed at the opening of the circular groove to achieve closure. The annular plate and the ball have a magnetic attraction, thereby improving the stability of the ball's position through the magnetic attraction between the annular plate and the ball, and preventing the ball from jumping around randomly in the circular groove.

[0009] In an improved embodiment, the annular plate is made of a ferromagnetic material, the ball is made of a magnetic material, and the rotating component is made of a non-ferromagnetic material; or the annular plate is made of a magnetic material, and the ball is made of a ferromagnetic material. This ensures a more stable magnetic attraction between the annular plate and the ball.

[0010] In an improved design, the rotating component is equipped with a coaxial magnetic ring, and a Hall plate is provided on the side of the housing near the rotating component, with the Hall plate positioned opposite the magnetic ring. By sensing the magnetic ring through the Hall plate, precise detection of the rotating component's rotation angle is achieved. This allows the motor to automatically adjust the curtain according to the user's needs even after manual adjustment, further enhancing the intelligence level of the curtain adjustment.

[0011] In an improved embodiment, the magnetic ring is positioned on the side of the rotating component facing away from the drive wheel. By optimizing the position of the magnetic ring, its interference with the internal structure is reduced, thus improving stability and reliability.

[0012] In an improved design, the driving wheel is a worm gear, and a worm is connected to the output end of the motor. The worm and the worm gear mesh with each other. This worm gear transmission method achieves efficient and smooth transmission between the motor and the driving wheel, reducing noise and energy consumption.

[0013] This utility model also provides a privacy curtain that integrates manual and automatic operation, including a drive assembly with a clutch structure as described above, a transmission belt, a curtain guide rail, and a curtain fabric. Both ends of the curtain guide rail are rotatably connected to transmission wheels. The rotating component of the drive assembly with the clutch structure is coaxially connected to any one of the transmission wheels. The transmission belt is annular, with both ends wound around the two transmission wheels, so that the transmission wheels and the transmission belt rotate synchronously. The curtain fabric is moved by the transmission belt. This technical solution achieves free switching between automatic and manual operation through the drive assembly with a clutch structure, meeting users' diverse adjustment needs for the curtain and improving its practicality and convenience.

[0014] In an improved design, multiple buckles arranged from front to back are slidably connected within the curtain guide rail. The curtain consists of two pieces. The front and rear ends of the curtain guide rail are respectively equipped with stops to prevent the buckles from disengaging. The two buckles located in the middle are a first buckle and a second buckle. The first buckle is connected to a transmission belt below the two drive wheels, and the second buckle is connected to a transmission belt above the two drive wheels. The upper side of the first curtain is connected to the first buckle and a buckle located in front of the first buckle, and the first buckle is connected to the rear of the first curtain. The upper side of the second curtain is connected to the second buckle and a buckle located behind the second buckle, and the second buckle is connected to the front of the second curtain. Thus, when the transmission belt is running, the upper and lower transmission belts between the two drive wheels move in opposite directions. The first and second buckles can drive the corresponding curtains to separate or close relative to each other, achieving bidirectional opening and closing of the two curtains and meeting privacy protection needs in different scenarios.

[0015] In an improved embodiment, multiple buckles arranged from front to back are slidably connected within the curtain guide rail. The curtain fabric is a single piece. The front and rear ends of the curtain guide rail are respectively provided with stops to prevent the buckles from dislodging. Specifically, the foremost buckle is connected to the drive belt, and the buckle connected to the drive belt is connected to the front part of the curtain fabric; or the rearmost buckle is connected to the drive belt, and the buckle connected to the drive belt is connected to the rear part of the curtain fabric. Thus, when the drive belt moves, the buckles connected to the drive belt can drive the curtain fabric to fold forward or backward, simplifying the structure while achieving the basic function. Attached Figure Description

[0016] Figure 1 A schematic diagram of a manual / automatic privacy curtain;

[0017] Figure 2 This is a top view schematic diagram of a drive assembly with a clutch structure;

[0018] Figure 3 For along Figure 2 Cross-sectional view of section AA in the middle;

[0019] Figure 4 For along Figure 3 Cross-sectional view of the BB section line;

[0020] Figure 5 A schematic diagram of the curtain rail for a type of manual / automatic privacy curtain;

[0021] Figure 6 A schematic diagram of the drive belt of a manual / automatic privacy curtain;

[0022] Figure 7 for Figure 6 A magnified view of a portion of region C.

[0023] Explanation of reference numerals in the attached figures.

[0024] 1. Housing; 11. Motor; 111. Worm gear; 12. Drive wheel; 13. Eccentric wheel; 14. Rotating component; 141. Circular groove; 142. Embedded groove; 143. Magnetic ring; 15. Ball bearing; 16. Annular plate; 17. Hall plate; 2. Drive belt; 3. Curtain guide rail; 31. Buckle; 31a. First buckle; 31b. Second buckle; 32. Drive wheel; 33. Stop block; 4. Curtain fabric. Detailed Implementation

[0025] It should be understood by those skilled in the art that the following embodiments are merely illustrative of the technical principles of the embodiments of this application and are not intended to limit the scope of protection of the embodiments of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0026] In the following description of the embodiments, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0027] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0028] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0029] Example 1

[0030] Please see Figures 1-4 An embodiment of this utility model provides a drive assembly with a clutch structure, including a housing 1, a drive wheel 12, a rotating component 14, a ball bearing 15, and a motor 11. The drive wheel 12 and the rotating component 14 are rotatably connected to the housing 1 and are coaxial with each other. The drive wheel 12 is driven to rotate by the motor 11. The rotating component 14 has a circular groove 141 on the side facing the drive wheel 12. The drive wheel 12 has an eccentric wheel 13 extending into the circular groove 141. The ball bearing 15 is located between the circular groove 141 and the eccentric wheel 13. The inner peripheral wall of the circular groove 141 has a groove 142 for the ball bearing 15 to be inserted. The outer diameter of the ball bearing 15 is smaller than the maximum radial distance between the eccentric wheel 13 and the circular groove 141 and larger than the minimum radial distance between the eccentric wheel 13 and the groove 142.

[0031] In the above scheme, the drive wheel 12 serves as the input end for receiving power from the motor 11, and the rotating component 14 serves as the output end for power. The clutch transmission between the drive wheel 12 and the rotating component 14 is achieved through the combination of the eccentric wheel 13 and the ball bearings 15. When driven by the motor 11, the drive wheel 12 is rotated by the motor 11, and the drive wheel 12 synchronously drives the eccentric wheel 13 to rotate within the circular groove 141. Since the outer peripheral wall of the eccentric wheel 13 is convex, the ball bearings 15 are pushed by the eccentric wheel 13 and inserted into the groove 142. Due to the pressure and friction between the ball bearings 15 and the groove 142, the eccentric wheel 12... 3. This mechanism drives the ball bearing 15 to rotate the rotating component 14 synchronously, allowing the rotational power of the motor 11 to be transmitted to and output from the rotating component 14, subsequently enabling automatic adjustment of the curtain. When the user manually adjusts the curtain, the rotating component 14 rotates under the user's external force. At this time, the circular groove 141 rotates relative to the eccentric wheel 13, and the ball bearing 15 disengages from the groove 142 and enters a position where the radial distance between the eccentric wheel 13 and the circular groove 141 is greater than the outer diameter of the ball bearing 15. In this case, the rotating component 14 idles relative to the eccentric wheel 13 and the drive wheel 12, avoiding damage to the motor 11. Compared with the prior art, the drive assembly with a clutch structure in the above solution enables free switching between automatic and manual operation, avoiding damage to the drive assembly caused by the user forcibly moving the curtain, improving service life and user experience.

[0032] As an improvement to the above embodiment, there are two symmetrically distributed slots 142, the eccentric wheel 13 is elliptical, and there are two balls 15, which are separated by the eccentric wheel 13 on both sides of the circular groove 141. When rotating, the elliptical eccentric wheel 13 can better push the two balls 15 into the two slots 142 of the circular groove 141, which enhances the stability and durability of the clutch structure and increases the torque that can be transmitted between the eccentric wheel 13 and the rotating shaft.

[0033] As another improvement to the above embodiment, the housing 1 is further provided with an annular plate 16, which is disposed at the opening of the circular groove 141 to achieve closure. The annular plate 16 and the ball 15 have a magnetic attraction, thereby improving the stability of the ball 15's position and preventing the ball 15 from jumping around randomly within the circular groove 141. In this embodiment, the annular plate 16 is made of a ferromagnetic material, such as iron; the ball 15 is made of a magnetic material, such as neodymium iron boron; and the rotating component 14 is made of a non-ferromagnetic material, such as plastic. Alternatively, the annular plate 16 can be made of a magnetic material, and the ball 15 can be made of a ferromagnetic material. This ensures a relatively stable magnetic attraction between the annular plate 16 and the ball 15.

[0034] As another improvement to the above embodiment, the rotating component 14 is provided with a coaxial magnetic ring 143, and a Hall plate 17 is provided on the side of the housing 1 near the rotating component 14, with the Hall plate 17 and the magnetic ring 143 being arranged opposite each other. By sensing the magnetic ring 143 through the Hall plate 17, the rotation angle of the rotating component 14 can be accurately detected, making it convenient for the motor 11 to automatically adjust the curtain according to the user's needs after manual adjustment, further improving the intelligence level of curtain adjustment.

[0035] In this improved design, the magnetic ring 143 is positioned on the side of the rotating component 14 facing away from the drive wheel 12. By optimizing the position of the magnetic ring 143, its interference with the internal structure is reduced, thereby improving stability and reliability.

[0036] In this embodiment, the driving wheel 12 is a worm gear, and the output end of the motor 11 is connected to a worm 111, with the worm 111 and the worm gear meshing with each other. Through the transmission method of the worm gear 111, an efficient and smooth transmission function between the motor 11 and the driving wheel 12 is achieved, reducing noise and energy consumption.

[0037] Example 2

[0038] Please see Figures 1-7 Embodiment 2 of this utility model provides a privacy curtain that integrates manual and automatic operation. It includes a drive assembly with a clutch structure as described in Embodiment 1, a transmission belt 2, a curtain guide rail 3, and a curtain fabric 4. Both ends of the curtain guide rail 3 are rotatably connected to transmission wheels 32. The rotating component 14 of the drive assembly with the clutch structure is coaxially connected to either transmission wheel 32. The transmission belt 2 is annular, and its two ends are respectively wound around the two transmission wheels 32, so that the transmission wheels 32 and the transmission belt 2 rotate synchronously. The curtain fabric 4 is moved by the transmission belt 2. This technical solution achieves free switching between automatic and manual operation through the drive assembly with a clutch structure, meeting users' diverse adjustment needs for the curtain and improving its practicality and convenience.

[0039] Regarding the connection method between the rotating component 14 and the transmission wheel 32, a rotating shaft can be set on the side of the rotating component 14 facing away from the driving wheel 12, and then fixedly inserted into any of the transmission wheels 32.

[0040] Regarding the driving method of the transmission belt 2 on the curtain 4, in this embodiment, multiple buckles 31 arranged from front to back are slidably connected inside the curtain guide rail 3. The curtain 4 consists of two pieces. The front and rear ends of the curtain guide rail 3 are respectively provided with stops 33 to prevent the buckles 31 from coming off. The two buckles 31 located in the middle are the first buckle 31a and the second buckle 31b. The first buckle 31a is connected to the transmission belt 2 below the two transmission wheels 32, and the second buckle 31b is connected to the transmission belt 2 above the two transmission wheels 32. The upper side of the first curtain 4 of the two pieces of curtain 4 is connected to the first buckle 31a and the first buckle 31b. The first buckle 31 is connected to the front of the second buckle 31a, and the first buckle 31a is connected to the rear of the first curtain 4. The upper side of the second curtain 4 is connected to the second buckle 31b and the buckle 31 located behind the second buckle 31b. The second buckle 31b is connected to the front of the second curtain 4. Thus, when the transmission belt 2 is running, the upper and lower transmission belts 2 between the two transmission wheels 32 move in opposite directions. The first buckle 31a and the second buckle 31b can drive the corresponding curtains 4 to separate or close relative to each other, realizing the bidirectional opening and closing of the two curtains 4 and meeting the privacy protection needs in different scenarios.

[0041] Alternatively, in other embodiments, multiple buckles 31 arranged from front to back are slidably connected inside the curtain guide rail 3. The curtain 4 is a single piece. The front and rear ends of the curtain guide rail 3 are respectively provided with stops 33 to prevent the buckles 31 from coming off. The frontmost buckle 31 is connected to the transmission belt 2, and the buckle 31 connected to the transmission belt 2 is connected to the front part of the curtain 4. Or the rearmost buckle 31 is connected to the transmission belt 2, and the buckle 31 connected to the transmission belt 2 is connected to the rear part of the curtain 4. Thus, when the transmission belt 2 moves, the buckle 31 connected to the transmission belt 2 can drive the curtain 4 to fold forward or backward, simplifying the structure while achieving the basic function.

[0042] It should be noted that in the description of this application, the terms "inner" and "outer," etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. This is only for the convenience of description and does not indicate or imply that the device or component must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this application. All directional indications (such as up, down, left, right, front, back, inner, and outer) are only used to explain the relative positional relationships and movement between components in a specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0043] In the description of this application, the references to terms such as "an embodiment," "some embodiments," "in this embodiment," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0044] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A drive assembly with a clutch structure, characterized in that, The device includes a housing (1), a drive wheel (12), a rotating component (14), a ball bearing (15), and a motor (11). The drive wheel (12) and the rotating component (14) are rotatably connected to the housing (1) and are coaxial with each other. The drive wheel (12) is driven to rotate by the motor (11). The rotating component (14) has a circular groove (141) on one side facing the drive wheel (12). The drive wheel (12) has an eccentric wheel (13) extending into the circular groove (141). The ball bearing (15) is located between the circular groove (141) and the eccentric wheel (13). The inner circumferential wall of the circular groove (141) has a groove (142) for the ball bearing (15) to be inserted. The outer diameter of the ball bearing (15) is smaller than the maximum radial distance between the eccentric wheel (13) and the circular groove (141) and larger than the minimum radial distance between the eccentric wheel (13) and the groove (142).

2. The drive assembly with clutch structure according to claim 1, characterized in that, The grooves (142) are two in number and symmetrically distributed. The eccentric wheel (13) is elliptical in shape. The balls (15) are two in number and are separated by the eccentric wheel (13) on both sides of the circular groove (141).

3. The drive assembly with clutch structure according to claim 1 or 2, characterized in that, The housing (1) is also provided with a replacement chip. The annular piece (16) is disposed at the opening of the circular groove (141) to achieve closure, and the annular piece (16) and the ball (15) have a magnetic attraction effect.

4. The drive assembly with clutch structure according to claim 3, characterized in that, The annular plate (16) is made of ferromagnetic material, the ball (15) is made of magnetic material, and the rotating part (14) is made of non-ferromagnetic material; or the annular plate (16) is made of magnetic material, and the ball (15) is made of ferromagnetic material.

5. The drive assembly with clutch structure according to claim 1, characterized in that, The rotating component (14) is provided with a coaxial magnetic ring (143), and the housing (1) is provided with a Hall plate (17) on the side near the rotating component (14), and the Hall plate (17) is arranged opposite to the magnetic ring (143).

6. The drive assembly with clutch structure according to claim 5, characterized in that, The magnetic ring (143) is disposed on the side of the rotating member (14) facing away from the drive wheel (12).

7. The drive assembly with clutch structure according to claim 1, characterized in that, The drive wheel (12) is a worm gear, and the output end of the motor (11) is connected to a worm (111), and the worm (111) and the worm gear mesh with each other.

8. A privacy curtain that is both manual and automatic, characterized in that, The drive assembly with clutch structure as described in any one of claims 1-7, as well as a transmission belt (2), a curtain rail (3) and a curtain (4), wherein both ends of the curtain rail (3) are rotatably connected to a transmission wheel (32), the rotating part (14) of the drive assembly with clutch structure is coaxially connected to any one of the transmission wheels (32), the transmission belt (2) is annular and both ends of the transmission belt (2) are respectively wound around the two transmission wheels (32) so that the transmission wheels (32) and the transmission belt (2) rotate synchronously, and the curtain (4) is moved by the transmission belt (2).

9. The drive assembly with clutch structure according to claim 7, characterized in that, The curtain guide rail (3) is slidably connected with multiple buckles (31) arranged from front to back. The curtain fabric (4) consists of two pieces. The front and rear ends of the curtain guide rail (3) are respectively provided with stops (33) to prevent the buckles (31) from coming off. The two buckles (31) located in the middle are the first buckle (31a) and the second buckle (31b). The first buckle (31a) is connected to the transmission belt (2) below the two transmission wheels (32), and the second buckle (31b) is connected to the two transmission wheels. The transmission belt (2) above the two curtains (4) is connected to the first buckle (31a) and the buckle (31) in front of the first buckle (31a), and the first buckle (31a) is connected to the rear of the first curtain (4). The upper side of the second curtain (4) is connected to the second buckle (31b) and the buckle (31) in front of the second buckle (31b), and the second buckle (31b) is connected to the front of the second curtain (4).

10. The drive assembly with clutch structure according to claim 7, characterized in that, The curtain guide rail (3) is slidably connected with multiple buckles (31) arranged from front to back. The curtain fabric (4) is a piece. The front end and rear end of the curtain guide rail (3) are respectively provided with a stop block (33) to prevent the buckles (31) from coming off. The frontmost buckle (31) is connected to the transmission belt (2), and the buckle (31) connected to the transmission belt (2) is connected to the front part of the curtain fabric (4); or the rearmost buckle (31) is connected to the transmission belt (2), and the buckle (31) connected to the transmission belt (2) is connected to the rear part of the curtain fabric (4).

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