Driving device and electric curtain system

Abstract

The utility model relates to a driving device and an electric curtain system. The driving device comprises a shell, a gear assembly, a switching assembly, a driving motor and a transmission assembly. The gear assembly is arranged in the shell and comprises a first driving wheel set and a second driving wheel set, and the first driving wheel set is meshed with the second driving wheel set; the switching assembly is movably engaged with the second driving wheel set; the driving motor is connected with the first driving wheel set and used for driving the first driving wheel set to move. The transmission assembly is connected with an output shaft of the second driving wheel set and used for being connected with an external bead chain. The second driving wheel set responds to the movement of the switching assembly and is switched between a coupling state and a decoupling state; in the decoupling state, the second driving wheel set rotates in response to rotation of the transmission assembly, so that the transmission assembly drives the curtain to move under the action of external manual driving force from the external bead chain; in the coupling state, the second driving wheel set responds to rotation of the first driving wheel set so as to drive the transmission assembly, and then the curtain is driven.

Description

Technical Field

[0001] The present application relates to the technical field of household equipment, in particular to a driving device and an electric curtain system. Background Art

[0002] With the continuous development of science and technology and the continuous improvement of people's living quality, intelligent home has become a popular pursuit. As a representative product in intelligent home, the electric curtain has become an important part of the intelligent home control, bringing an intelligent experience to the family.

[0003] In the prior art, the electric curtain includes a driving device, a transmission component and a curtain. The driving device drives the transmission component to move, and then the transmission component drives the curtain to move, so as to realize the closing and opening of the curtain. However, the driving device is mainly driven by a motor. When there is a power outage or the driving device fails, the user needs to use a large pulling force to pull the curtain or even cannot open or close the curtain, resulting in inconvenient use. At present, some electric curtains are provided with an electric clutch module. The electric clutch module is arranged between the output shaft of the driving device and the sprocket of the transmission component. In the coupled state, the output shaft of the driving device drives the sprocket to rotate accordingly. In the decoupled state, the output shaft of the driving device is disengaged from the sprocket. Although the electric clutch device can realize the switching between the electric drive and the manual drive of the electric curtain, the failure rate of the electric clutch device is relatively high and the energy consumption is relatively large, resulting in inconvenient use and poor endurance of the electric curtain. Summary of the Utility Model

[0004] Based on this, in view of the above problems, it is necessary to provide a driving device and an electric curtain system. The electric curtain has two driving modes, namely electric driving the curtain and manual driving the curtain, and when manually driving the curtain, the operation is convenient and labor-saving, the failure rate is low, the endurance of the electric curtain is strong, and the user experience is good.

[0005] An embodiment of the present application provides a driving device, including:

[0006] A housing;

[0007] A gear assembly, arranged in the housing, including a first driving wheel set and a second driving wheel set, and the first driving wheel set is meshed with the second driving wheel set;

[0008] A switching assembly, movably meshed with the second driving wheel set;

[0009] A driving motor, connected to the first driving wheel set, for driving the first driving wheel set to move;

[0010] A transmission component, connected to the output shaft of the second driving wheel set, for connecting an external bead chain;

[0011] Wherein, the second driving wheel set switches between a coupled state and a decoupled state in response to the movement of the switching component;

[0012] In the decoupled state, the second driving wheel set rotates in response to the rotation of the transmission component, so as to drive the curtain to move under the action of an external manual driving force from the external bead chain on the transmission component;

[0013] In the coupled state, the second driving wheel set drives the transmission component in response to the rotation of the first driving wheel set, and further drives the curtain to move.

[0014] In one embodiment, the second driving wheel set includes a planetary gear set, a ring gear and a planet carrier. The planetary gear set is arranged inside the ring gear and meshes with the ring gear and the first driving wheel set. The switching component is movably arranged between the ring gear and the housing. The planet carrier is connected to the first driving wheel set and the planetary gear set, and an output shaft is formed on the planet carrier.

[0015] In one embodiment, the ring gear switches between a coupled state and a decoupled state in response to the movement of the switching component;

[0016] In the decoupled state, the ring gear is rotatable relative to the housing. The transmission component, the planet carrier, the ring gear and the planetary gear set form a power system. The ring gear rotates in response to the rotation of the planet carrier to drive the curtain to move under the action of an external manual driving force on the transmission component;

[0017] In the coupled state, the ring gear is fixed to the housing. The drive motor, the first driving wheel set, the planetary gear set, the planet carrier and the transmission component form a power system. The planetary gear set drives the curtain to move in response to the rotation of the first driving wheel set.

[0018] In one embodiment, when the end of the switching component abuts against the outer wall of the ring gear and the inner wall of the housing, the ring gear is in the coupled state relative to the housing, and the drive motor can drive the first driving wheel set to move forward; when the end of the switching component is separated from the outer wall of the ring gear, the ring gear is in the decoupled state relative to the housing, and the first driving wheel set is in a reverse movement locking state.

[0019] In one embodiment, the driving device further includes an elastic member. A baffle protrudes from the side wall of the switching component. The elastic member abuts between the baffle and the opposite surface of the housing, and the elastic member is configured to move towards the ring gear along the movement direction of the switching component.

[0020] In one embodiment, a plurality of grooves are formed on the outer wall of the ring gear, and the plurality of grooves are evenly distributed in the circumferential direction of the ring gear. The plurality of grooves can be in concave-convex fit with the end of the switching component.

[0021] In one embodiment, a protruding shaft is provided on the side wall of the switching component. A first through groove extending along the moving direction of the switching component is formed on the housing, and the protruding shaft penetrates through the first through groove.

[0022] In one embodiment, the driving device further includes a clutch push block. One end of the clutch push block forms a sleeve, and the other end of the clutch push block forms an operation end for manual clutch. The sleeve is sleeved on the protruding shaft.

[0023] In one embodiment, the driving device further includes an electric control component. The electric control component is provided with a first through hole and a second through groove, where:

[0024] The electric control component is arranged on the side of the clutch push block away from the housing and covers the housing. The electric control component is in communication connection with the driving motor and is provided with an electric button on one side;

[0025] The output shaft penetrates through the first through hole and extends to the side of the electric control component away from the housing;

[0026] The second through groove forms a clutch operation window and accommodates the operation end.

[0027] In one embodiment, the first driving wheel set includes a worm gear, a worm, a first gear, a second gear and a sun gear, where:

[0028] The worm is connected to the output end of the driving motor and meshes with the worm gear;

[0029] The first gear is coaxially connected to the worm gear and is rotatably installed on the housing;

[0030] The second gear is rotatably installed on the housing and meshes with the first gear and the large ring gear of the sun gear;

[0031] The sun gear is installed on the first shaft end of the planet carrier, and the small ring gear of the sun gear meshes with the planet gear set.

[0032] In one embodiment, the planet gear set includes a plurality of planet gears. The plurality of planet gears are installed on the second shaft end of the planet carrier. The plurality of planet gears are evenly distributed within the ring gear and respectively mesh with the ring gear. The plurality of planet gears surround the outside of the small ring gear of the sun gear and respectively mesh with the small ring gear of the sun gear.

[0033] In one embodiment, the transmission assembly includes a sprocket, which is in transmission connection with the output shaft and is used for an external chain bead to wind around.

[0034] Wherein, when the switching assembly and the ring gear are in the coupled state, the power of the driving motor is transmitted to the sun gear of the first driving wheel set through the output end of the driving motor, the pinion gear of the sun gear drives the planet gear to rotate, the planet gear drives the output shaft of the planet carrier to rotate, the output shaft of the planet carrier drives the sprocket to move, and the sprocket drives the external bead chain to move.

[0035] When the switching assembly is moved to make the switching assembly and the ring gear in the decoupled state, the external chain bead drives the output shaft of the planet carrier to rotate through the sprocket, the planet carrier drives the planet gear to rotate, and the planet gear drives the ring gear to rotate.

[0036] In one embodiment, when the switching assembly is driven to move in a direction away from the ring gear, the end of the switching assembly is separated from the outer wall of the ring gear, so that the switching assembly and the ring gear are in the decoupled state.

[0037] In addition, an embodiment of the present application further provides an electric curtain system, including:

[0038] The driving device as described in any one of the above embodiments;

[0039] A curtain, which is connected to the transmission assembly of the driving device.

[0040] In the above driving device and electric curtain system, when manual driving of the curtain is required, the user can move the switching assembly, so that the second driving wheel set responds to the movement of the switching assembly and switches from the coupled state to the decoupled state. At this time, the second driving wheel set rotates in response to the rotation of the transmission assembly, and the transmission assembly can drive the curtain to move under the action of an external manual driving force from the external bead chain to realize the manual opening and closing of the curtain. When the driving motor is required to drive the curtain, the switching assembly can be reset, so that the second driving wheel set responds to the movement of the switching assembly and switches from the decoupled state to the coupled state. At this time, the driving motor can drive the first driving wheel set to move, and the second driving wheel set drives the transmission assembly in response to the rotation of the first driving wheel set, thereby driving the curtain to move to realize the electric opening and closing of the curtain. Therefore, the above electric curtain has two working modes of electric driving the curtain to operate and manual driving the curtain to operate, and when manually driving the curtain, the operation is convenient and labor-saving, the failure rate is low, and the user experience is good. Description of the Drawings

[0041] Figure 1Schematic diagram of the structure of the electric curtain provided by this application.

[0042] Figure 2 For Figure 1 Right view of the electric curtain in

[0043] Figure 3 Explosion schematic diagram of the drive device provided by this application.

[0044] Figure 4 Explosion schematic diagram of the drive device provided by this application from another angle.

[0045] Figure 5 Schematic diagram of the position of the drive device provided by this application in the decoupled state.

[0046] Figure 6 Schematic diagram of the position of the drive device provided by this application in the decoupled state from another angle.

[0047] Figure 7 Schematic diagram of the position of the drive device provided by this application in the coupled state.

[0048] Figure 8 Schematic diagram of the position of the drive device provided by this application in the coupled state from another angle.

[0049] Wherein:

[0050] 01, Electric curtain;

[0051] 10, Drive device;

[0052] 100, Housing; 110, Upper cover; 120, Base; 130, Partition; 140, Cover plate; 141, First through groove; 150, First screw; 160, Second screw; 170, First bearing; 180, Second bearing; 190, Third bearing;

[0053] 200, Gear assembly; 210, First drive wheel set; 211, Worm gear; 212, Worm; 213, First gear; 214, Second gear; 215, Sun gear; 2151, Large ring gear; 2152, Small ring gear; 216, First rotating shaft; 217, Second rotating shaft; 202, Second drive wheel set; 220, Planet gear set; 221, Planet gear; 230, Ring gear; 231, Groove; 240, Planet carrier; 241, Output shaft; 242, First shaft end; 243, Second shaft end;

[0054] 300, Switching assembly;

[0055] 410, Drive motor; 420, Transmission assembly; 421, Sprocket; 422, External chain beads;

[0056] 500. Baffle

[0057] 600. Elastic member

[0058] 700. Protruding shaft

[0059] 800. Clutch push block; 810. Sleeve; 820. Operating end

[0060] 900. Electric control component; 910. First through hole; 920. Second through slot; 930. Electric button Detailed implementation manners

[0061] To make the above objects, features, and advantages of the present application more obvious and understandable, the following will describe the detailed implementation manners of the present application with reference to the accompanying drawings. Many specific details are set forth in the following description to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0062] In the description of the present application, it should be understood that if such terms as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or positional relationship indicated by these terms is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application.

[0063] In addition, if such terms as "first" and "second" appear, these terms are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0064] In this application, unless otherwise clearly specified or limited, if terms such as "installed", "connected", "joined", "fixed", etc. appear, these terms shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0065] In this application, unless otherwise clearly specified or limited, if there is a description such as a first feature "on" or "under" a second feature, its meaning can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or just means that the first feature is at a higher horizontal level than the second feature. The first feature "under", "beneath" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or just means that the first feature is at a lower horizontal level than the second feature.

[0066] It should be noted that if an element is called "fixed to" or "disposed on" another element, it can be directly on the other element or there can also be an intermediate element. If an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. If so, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in this application are only for the purpose of illustration and do not represent the only implementation.

[0067] Refer to Figure 1 and Figure 2 , in a first aspect, an embodiment of the present application provides an electric curtain 01, which is applied to a smart home. The electric curtain 01 includes a driving device 10 and a curtain, and the curtain is installed on the driving device 10. The electric curtain 01 has two working modes for curtain operation: electric driving the curtain and manual driving the curtain.

[0068] The driving device 10 includes a transmission assembly 420, and the transmission assembly 420 is externally connected to the curtain. In one example, the transmission assembly 420 includes a sprocket 421, and the sprocket 421 is used for an external chain bead 422 to wind around, and the external chain bead 422 is connected to the curtain. When specifically setting, the transmission assembly and the curtain can directly adopt the structural forms in the prior art, and the unfolded structure of the transmission assembly 420 and the specific structure of the curtain will not be elaborated here.

[0069] The output shaft 241 of the driving device 10 is in transmission connection with the sprocket 421. When the electric drive is used to operate the curtain, the output shaft 241 of the driving device 10 drives the sprocket 421 to rotate, and the sprocket 421 drives the external chain beads 422 to move, so as to realize the opening and closing of the curtain through the external chain beads 422. When the curtain is manually driven to operate, the external chain beads 422 are manually operated by the user, and the external chain beads 422 drive the sprocket 421 to rotate, and the sprocket 421 drives the output shaft 241 of the driving device 10 to rotate in the reverse direction. In order to facilitate the manual driving of the curtain to operate better, in the second aspect below, other structures of the driving device 10 except the transmission component 420 are improved.

[0070] In a second aspect, referring to Figure 3 and Figure 4 , an embodiment of the present application provides a driving device 10. In addition to the transmission component 420, the driving device 10 further includes a housing 100, a gear component 200, a switching component 300, and a driving motor 410. The housing 100 is used to accommodate the gear component 200 and the switching component 300, and is used to fix the gear component 200. The gear component 200 is disposed in the housing 100. The gear component 200 includes a first driving wheel set 210 and a second driving wheel set 202, and the first driving wheel set 210 meshes with the second driving wheel set 202; the switching component 300 is movably meshed with the second driving wheel set 202; the driving motor 410 is connected to the first driving wheel set 210 and is used to drive the first driving wheel set 210 to move; the transmission component 420 is connected to the output shaft 241 of the second driving wheel set 202 and is used to connect the external bead chain; wherein, the second driving wheel set 202 switches between a coupled state and a decoupled state in response to the movement of the switching component 300; in the decoupled state, the second driving wheel set 202 rotates in response to the rotation of the transmission component 420, so as to realize that the transmission component 420 drives the curtain to move under the action of an external manual driving force from the external bead chain; in the coupled state, the second driving wheel set 202 drives the transmission component 420 in response to the rotation of the first driving wheel set 210, and further drives the curtain to move.

[0071] In the above-mentioned driving device 10 and the electric curtain 01 system, when manual driving of the curtain is required, the user can move the switching component 300, so that the second driving wheel set 202 switches from the coupled state to the decoupled state in response to the movement of the switching component 300. At this time, the second driving wheel set 202 rotates in response to the rotation of the transmission component 420, and the transmission component 420 can drive the curtain to move under the action of an external manual driving force from an external bead chain, so as to realize the manual opening and closing of the curtain. When it is necessary to drive the curtain by the driving motor 410, the switching component 300 can be reset, so that the second driving wheel set 202 switches from the decoupled state to the coupled state in response to the movement of the switching component 300. At this time, the driving motor 410 can drive the first driving wheel set 210 to move, and the second driving wheel set 202 rotates in response to the rotation of the first driving wheel set 210 to drive the transmission component 420, and then drive the curtain to move, so as to realize the electric opening and closing of the curtain. Therefore, the above-mentioned electric curtain 01 has two working modes of electric driving the curtain to operate and manual driving the curtain to operate, and when manually driving the curtain, the operation is convenient and labor-saving, the failure rate is low, and the user experience is good.

[0072] Further, as Figure 3 and Figure 4 shown, in some embodiments, the second driving wheel set 202 includes a planetary gear set 220, a ring gear 230 and a planet carrier 240. The planetary gear set 220 is arranged inside the ring gear 230, and the planetary gear set 220 meshes with the ring gear 230. The planetary gear set 220 meshes with the first driving wheel set 210. The planet carrier 240 is connected to the first driving wheel set 210, and the planet carrier 240 is connected to the planetary gear set 220. The planet carrier 240 is formed with an output shaft 241, and the output shaft 241 is connected to the transmission component 420. The switching component 300 is arranged between the outer wall of the ring gear 230 and the housing 100, and the switching component 300 can move between the ring gear 230 and the housing 100. The driving motor 410 is connected to the first driving wheel set 210, and the driving motor 410 is used to drive the first driving wheel set 210 to move.

[0073] Among them, referring to Figure 5 、 Figure 6 、 Figure 7 and Figure 8, the drive device 10 has a coupled state and a decoupled state. The ring gear 230 switches between the coupled state and the decoupled state in response to the movement of the switching component 300. In the decoupled state, the ring gear 230 is rotatable relative to the housing 100. The transmission component 420, the planet carrier 240, the ring gear 230, and the planet gear set 220 form a power system. The ring gear 230 rotates along with the rotation of the planet carrier 240. At this time, the planet gear set 220 rotates along with the drive of the planet carrier 240 to realize the transmission component 420 driving the curtain to move under the action of an external manual driving force, and the external manual driving force can be that the user manually pulls the curtain. In the coupled state, the ring gear 230 is fixed to the housing 100. The drive motor 410, the first drive wheel set 210, the planet gear set 220, the planet carrier 240, and the transmission component 420 form a power system. The planet gear set 220 rotates along with the rotation of the first drive wheel set 210, and the planet gear set 220 drives the planet carrier 240 to move accordingly to drive the curtain to move through the transmission component 420.

[0074] In one example, referring to Figure 3 and Figure 4 , the housing 100 includes an upper cover 110, a base 120, a partition 130, and a cover plate 140. The cover plate 140 is fixed to the base 120 by a plurality of first screws 150. The base 120 is fixedly connected to the upper cover 110 by a plurality of second screws 160 to form an accommodation space for the gear assembly 200 and the switching component 300. The partition 130 is fixed to the base 120 to separate the first drive wheel set 210 from the planet gear set 220. In one example, one end of the planet carrier 240 has a first shaft end 242 and a plurality of second shaft ends 243. The planet carrier 240 is mounted on the base 120 through a first bearing 170 and a second bearing 180. The plurality of second shaft ends 243 are arranged around the outside of the first shaft end 242, and the other end of the planet carrier 240 forms an output shaft 241. In one example, the drive motor 410 can be a motor or a combination of a motor and a reduction mechanism to provide rotational power, and the end of the first drive wheel set 210 is mounted on the upper cover 110 through a third bearing 190 to facilitate the rotatable mounting of the first drive wheel set 210.

[0075] The structural form of the first drive wheel set 210 has a variety of types. In a preferred embodiment, referring to Figure 3 and Figure 4, the first drive wheel set 210 includes a worm gear 211, a worm 212, a first gear 213, a second gear 214 and a sun gear 215. The worm 212 is connected to the output end of the drive motor 410, and the worm 212 meshes with the worm gear 211. The first gear 213 is coaxially connected to the worm gear 211 through a first rotating shaft 216, and the first gear 213 and the worm gear 211 are mounted on the housing 100 through the first rotating shaft 216. The first gear 213 and the worm gear 211 can rotate around the axis of the first rotating shaft 216 relative to the housing 100. The second gear 214 is mounted on the housing 100 through a second rotating shaft 217, and the second gear 214 can rotate relative to the housing 100. The second gear 214 meshes with the first gear 213. The sun gear 215 has a large ring gear 2151 and a small ring gear 2152. The sun gear 215 is mounted on the first shaft end 242 of the planet carrier 240 by means of embedding, key connection, etc. The large ring gear 2151 of the sun gear 215 meshes with the second gear 214, and the small ring gear 2152 of the sun gear 215 meshes with the planet gear set 220. In this way, the drive motor 410 inputs power, and the power is transmitted and the direction is changed at the first stage through the worm gear 211 and the worm 212. The power continues to be transmitted in the same direction at the second and third stages through the first gear 213, the second gear 214 and the large ring gear 2151. Then the power is transmitted to the planet gear set 220 through the small ring gear 2152 to achieve the fourth-stage transmission of power, so that the drive motor 410 can drive the planet gear set 220 more conveniently and reliably.

[0076] The structural form of the planet gear set 220 has various types. Specifically, refer to Figure 3 and Figure 4 , the planet gear set 220 includes a plurality of planet gears 221. The plurality of planet gears 221 are rotatably mounted on the second shaft end 243 of the planet carrier 240 by means of embedding, key connection, etc. The plurality of planet gears 221 are evenly distributed within the ring gear 230, and the plurality of planet gears 221 respectively mesh with the ring gear 230. The plurality of planet gears 221 are arranged outside the small ring gear 2152 of the sun gear 215, and the plurality of planet gears 221 respectively mesh with the small ring gear 2152 of the sun gear 215.

[0077] When the driving device 10 is in a coupled state, the switching component 300 and the ring gear 230 are in a coupled state at this time. The ring gear 230 cannot rotate relative to the housing 100. The power input by the driving motor 410 is transmitted to the first driving wheel set 210 through its output end, and after being transmitted through the first driving wheel set 210, it is transmitted to the sun gear 215. The planetary gear 221 meshes with the small ring gear 2152 of the sun gear 215. Therefore, the small ring gear 2152 of the sun gear 215 can drive the planetary gear 221 to rotate accordingly. The planetary gear 221 also meshes with the inner side of the ring gear 230. At this time, the ring gear 230 is fixed, so the planetary gear 221 will revolve around the sun gear 215 within the ring gear 230. It can be understood that since multiple planetary gears 221 are rotatably installed at the second shaft end 243 of the planet carrier 240, when the multiple planetary gears 221 revolve around the sun gear 215, they will also drive the planet carrier 240 and the output shaft 241 of the planet carrier 240 to rotate together, and the output shaft 241 of the planet carrier 240 will also drive the sprocket 421 to rotate together, so that the sprocket 421 drives the external chain beads 422 to move, and further drives the transmission component 420 to drive the curtain to open and close.

[0078] When it is necessary to manually drive the external chain beads 422 to move, the switching component 300 is manually moved to switch the switching component 300 from the coupled state to the decoupled state with the ring gear 230. It can be understood that if the external chain beads 422 are to be manually driven to move, the drive motor 410 will not be started, and thus the sun gear 215 in the first drive component 210 driven by the drive motor 410 will not rotate, which is equivalent to the sun gear 215 being locked. At this time, if the ring gear 230 is not switched from the coupled state to the decoupled state, it means that the ring gear 230 is also locked, that is, both the ring gear 230 and the sun gear 215 are locked. And a plurality of planetary gears 221 are meshed between the inner side of the ring gear 230 and the pinion 2152 of the sun gear 215. When both the ring gear 230 and the sun gear 215 are locked, the planetary gears 221 and the planet carrier 240 driven by the planetary gears 221 naturally cannot rotate. Therefore, when it is necessary to manually drive the external chain beads 422 to move, it is necessary to switch the switching component 300 from the coupled state to the decoupled state with the ring gear 230. At this time, the sun gear 215 does not rotate, but the ring gear 230 can rotate. Therefore, the sprocket 421 can be driven to rotate by the external chain beads 422, and then the output shaft 241 of the planet carrier 240 can be driven to rotate, so that the planet carrier 240 drives the planetary gears 221 to rotate, and the planetary gears 221 drive the ring gear 230 to rotate. Among them, although the sun gear 215 does not rotate, since the ring gear 230 is not locked, the planetary gears 221 meshed between the inner side of the ring gear 230 and the sun gear 215 can rotate, and the ring gear 230 rotates together without hindering the rotation of the planetary gears 221. Therefore, when the output shaft 241 drives the planet carrier 240 to rotate, the plurality of planetary gears 221 on the planet carrier 240 can revolve around the pinion 2152 of the sun gear 215. And at this time, the first drive wheel set 210 will not move due to its reverse drive meshing resistance at a relatively small driving force, so that the user can easily pull the curtain to open and close.

[0079] In one example, the transition from the coupled state to the decoupled state can be achieved through the following actions: manually driving the switching component 300 to move in a direction away from the gear ring 230, separating the end of the switching component 300 from the outer wall of the gear ring 230, and switching the switching component 300 and the gear ring 230 from the coupled state to the decoupled state. In one example, when manually driving the external chain bead 422 to move, the external chain bead 422 drives the sprocket 421 to rotate, the sprocket 421 drives the planet carrier 240 to rotate accordingly, the planet carrier 240 drives the planet gear 221 to rotate accordingly, and the planet gear 221 drives the gear ring 230 to rotate accordingly. It should be noted that during the process of manually driving the external chain bead 422, the switching component 300 can be continuously manually pulled to keep the switching component 300 and the gear ring 230 in the decoupled state all the time. Of course, for the convenience of manually driving the external chain bead 422, a limiting member cooperating with the switching component 300 can also be provided. After manually pulling the switching component 300 once, the switching component 300 cooperates with the limiting member to keep the switching component 300 in the decoupled state. At this time, it is not necessary to keep manually pulling the switching component 300, thereby liberating one palm of the user and making it more convenient to manually drive the external chain bead 422.

[0080] For the convenience of switching between the coupled state and the decoupled state, in a preferred embodiment, refer to Figure 5 、 Figure 6 、 Figure 7 and Figure 8 , when the two end portions of the switching component 300 abut against the outer wall of the gear ring 230 and the inner wall of the housing 100, the driving device 10 is in the coupled state, the gear ring 230 is in the coupled state relative to the housing 100, so that the switching component 300 blocks the movement tendency of the gear ring 230, the switching component 300 can fix the gear ring 230 in the housing 100, and the driving motor 410 is in a state where it can drive the first driving wheel set 210 to move forward. When the driving motor 410 is powered on, the driving motor 410 drives the first driving wheel set 210 to move forward. When the end of the switching component 300 is separated from the outer wall of the gear ring 230, the driving device 10 is in the decoupled state, the gear ring 230 is in the decoupled state relative to the housing 100, so that the movement tendency of the gear ring 230 is not blocked by the switching component 300, the gear ring 230 can rotate in the housing 100, making the first driving wheel set 210 in the reverse movement locking state. At this time, when the gear ring 230 responds to the movement of the planet carrier 240, it cannot drive the first driving wheel set 210 to move in the reverse direction accordingly. Therefore, by whether the end of the switching component 300 abuts against the outer wall of the gear ring 230 and the inner wall of the housing 100 or not, it is possible to conveniently switch from the coupled state to the decoupled state and from the decoupled state to the coupled state.

[0081] For the convenience of realizing the reset of the coupled state, specifically, refer toFigure 5 , Figure 6 , Figure 7 and Figure 8 , the driving device 10 further includes an elastic member 600. The switching component 300 can be a clutch lever, and a baffle 500 protrudes from its side wall. The elastic member 600 abuts between the opposite surfaces of the baffle 500 and the housing 100, and the elastic member 600 is configured to move towards the gear ring 230 along the moving direction of the switching component 300.

[0082] In one example, the baffle 500 and the switching component 300 can be an integral structure for easy preparation. When manually driving the curtain to run, the user pulls the switching component 300 in a direction away from the gear ring 230. The end of the switching component 300 leaves the outer wall of the gear ring 230, and the elastic member 600 is continuously compressed by the baffle 500, switching from the coupled state to the decoupled state, and maintaining the pulling of the switching component 300 throughout the process of manually pulling the external chain bead 422, so that the external chain bead 22 can be smoothly pulled. After the manual driving of the curtain is completed, when the switching component 300 is released, the elastic member 600 automatically rebounds and pushes the baffle 500 to move towards the gear ring 230, so that the two ends of the switching component 300 abut against the outer wall of the gear ring 230 and the inner wall of the housing 100, and it is more convenient to switch from the decoupled state to the coupled state for subsequent electric driving of the curtain.

[0083] To improve the reliability and stability of the coupled state, refer to Figure 3 and Figure 4 , specifically, a plurality of grooves 231 are formed on the outer wall of the gear ring 230. The grooves 231 open on the outer side wall of the gear ring 230, and the plurality of grooves 231 are evenly distributed in the circumferential direction of the gear ring 230. The openings of the grooves 231 are adapted to the ends of the switching component 300. The plurality of grooves 231 can be in concave-convex fit with the ends of the switching component 300, so that the end face of the switching component 300 is located in the grooves 231, and the ends of the switching component 300 and the side walls of the grooves 231 block each other, avoiding accidental decoupling during collision impact or misoperation, and the ends of the switching component 300 can stably abut against the gear ring 230, improving the reliability and stability of the coupled state.

[0084] To facilitate the movement of the switching component 300, in a preferred embodiment, refer to Figure 3 and Figure 4, Specifically, a protruding shaft 700 is provided on the side wall of the switching component 300. A first through groove 141 extending along the moving direction of the switching component 300 is formed on the housing 100. The protruding shaft 700 penetrates through the first through groove 141 so that the protruding shaft 700 is exposed through the first through groove 141, which is used to facilitate the operation of the protruding shaft 700 and is convenient for realizing the manual clutch operation of the switching component 300. In one example, the first through groove 141 is provided on the cover plate 140 of the housing 100, and the extending length of the first through groove 141 is at least greater than the sum of the depth of the groove 231 and the maximum outer contour dimension of the protruding shaft 700, so as to facilitate the release of the coupled state. In one example, the protruding shaft 700 and the switching component 300 can be of an integral structure for easy preparation.

[0085] For ease of operation, specifically, referring to Figure 1 , Figure 3 and Figure 4 , the driving device 10 further includes a clutch push block 800. A sleeve 810 is formed at one end of the clutch push block 800, and an operation end 820 for manual clutch is formed at the other end of the clutch push block 800. The sleeve 810 is sleeved on the protruding shaft 700. When performing the manual clutch operation of the switching component 300, only by moving the clutch push block 800 can the movement of the switching component 300 be realized more conveniently. Through the clutch push block 800, it can be adapted to driving devices 10 of different sizes, so that the structural components inside the housing 100 are compactly arranged, and it can be applicable to various structural forms in which the protruding shaft 700 extends and is improved for operation.

[0086] For ease of electric drive curtain control, specifically, referring to Figure 1 , Figure 3 and Figure 4 , the driving device 10 further includes an electric control component 900. The electric control component 900 is provided with a first through hole 910 and a second through groove 920. The electric control component 900 is arranged on the side of the clutch push block 800 away from the housing 100, and the electric control component 900 covers the housing 100. The electric control component 900 is communicatively connected to the driving motor 410 through a cable, and an electric button 930 is provided on one side of the electric control component 900. When in the coupled state, by pressing the electric button 930, the electric control component 900 controls the driving motor 410 to start, and the driving motor 410 drives the gear assembly 200 to move to realize the electric drive of the curtain. The output shaft 241 penetrates through the first through hole 910, and the output shaft 241 extends out to the side of the electric control component 900 away from the housing 100, so that the arrangement of the electric control component 900 does not affect the connection between the output shaft 241 and the transmission component. The second through groove 920 forms a clutch operation window, and the operation end 820 is accommodated in the second through groove 920 to further improve the convenience of the manual clutch operation.

[0087] In the above electric curtain 01, when manual driving of the curtain is required, the user moves the switching component 300. In response to the movement of the switching component 300, the gear ring 230 switches from the coupled state to the decoupled state. At this time, the gear ring 230 can rotate relative to the housing 100. The transmission component 420, the planet carrier 240, the gear ring 230, and the planet gear set 220 form a power system. The user manually drives the transmission component 420, and the transmission component 420 drives the planet carrier 240 to rotate accordingly through the output shaft 241. The planet carrier 240 drives the planet gear set 220 and the gear ring 230 to rotate. At this time, the first drive wheel set 210 will not move due to the reverse drive meshing resistance. The transmission component 420 can move continuously relatively easily and drive the curtain to move accordingly, so as to realize the manual opening and closing of the curtain.

[0088] When electric driving of the curtain is required, the switching component 300 is reset. In response to the movement of the switching component 300, the gear ring 230 switches from the decoupled state to the coupled state. At this time, the gear ring 230 is fixed relative to the housing 100. The drive motor 410, the first drive wheel set 210, the planet gear set 220, the planet carrier 240, and the transmission component 420 form a power system, and can perform electric driving of the curtain in the coupled state. At this time, the drive motor 410 drives the first drive wheel set 210 to move, the first drive wheel set 210 drives the planet gear set 220 to rotate relative to the gear ring 230, the planet gear set 220 drives the planet carrier 240 and the transmission component 420 to rotate accordingly, and the transmission component 420 drives the curtain to move accordingly, so as to realize the electric opening and closing of the curtain. Therefore, the above electric curtain 01 has two curtain driving modes, namely electric driving of the curtain and manual driving of the curtain. Moreover, when manually driving the curtain, the operation is convenient and labor-saving, and the failure rate is low. The electric curtain 01 has strong battery life and good user experience.

[0089] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0090] The above-described embodiments merely represent several implementation manners of the present application. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several deformations and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.

Claims

1. A driving device, characterized in that, Comprising: A housing; A gear assembly disposed within the housing, including a first drive wheel set and a second drive wheel set, the first drive wheel set being meshed with the second drive wheel set; A switching assembly movably meshed with the second drive wheel set; A drive motor connected to the first drive wheel set for driving the first drive wheel set to move; A transmission assembly connected to the output shaft of the second drive wheel set, the transmission assembly also being used to connect an external bead chain; Wherein, the second drive wheel set switches between a coupled state and a decoupled state in response to the movement of the switching assembly; In the decoupled state, the second drive wheel set rotates in response to the rotation of the transmission assembly to enable the transmission assembly to drive the curtain to move under the action of an external manual driving force from the external bead chain; In the coupled state, the second drive wheel set rotates in response to the rotation of the first drive wheel set to drive the transmission assembly, and further drive the curtain to move.

2. The drive device according to claim 1, characterized in that, The second drive wheel set includes a planetary gear set, a ring gear and a planet carrier, the planetary gear set is disposed within the ring gear and meshed with the ring gear and the first drive wheel set, the switching assembly is movably disposed between the ring gear and the housing, the planet carrier is connected to the first drive wheel set and the planetary gear set, and the output shaft is formed on the planet carrier.

3. The drive device according to claim 2, characterized in that, The ring gear switches between a coupled state and a decoupled state in response to the movement of the switching assembly; In the decoupled state, the ring gear is rotatable relative to the housing, the transmission assembly, the planet carrier, the ring gear and the planetary gear set form a power system, and the ring gear rotates in response to the rotation of the planet carrier to enable the transmission assembly to drive the curtain to move under the action of an external manual driving force; In the coupled state, the ring gear is fixed to the housing, the drive motor, the first drive wheel set, the planetary gear set, the planet carrier and the transmission assembly form a power system, and the planetary gear set rotates in response to the rotation of the first drive wheel set to drive the curtain to move.

4. The drive device according to claim 2 or 3, wherein When the end of the switching assembly abuts against the outer wall of the ring gear and the inner wall of the housing, the ring gear is in the coupled state relative to the housing, and the drive motor can drive the first drive wheel set to move forward; When the end of the switching assembly is separated from the outer wall of the ring gear, the ring gear is in the decoupled state relative to the housing, and the first drive wheel set is in a reverse movement locked state.

5. The drive device according to claim 4, characterized in that The drive device further includes an elastic member, a baffle protrudes from the side wall of the switching assembly, the elastic member abuts between the baffle and the opposite surface of the housing, and the elastic member is configured to move towards the ring gear along the movement direction of the switching assembly.

6. The drive device according to claim 4, characterized in that, A plurality of grooves are formed on the outer wall of the ring gear, the plurality of grooves are evenly distributed in the circumferential direction of the ring gear, and the plurality of grooves are in concave-convex fit with the end of the switching assembly.

7. The drive device according to claim 1, characterized in that, The side wall of the switching component is provided with a protruding shaft, and a first through groove extending along the moving direction of the switching component is formed on the housing, and the protruding shaft penetrates through the first through groove.

8. The drive device according to claim 7, characterized in that, The driving device further includes a clutch push block, one end of the clutch push block forms a sleeve, the other end of the clutch push block forms an operation end for manual clutch, and the sleeve is sleeved on the protruding shaft.

9. The drive device according to claim 8, characterized in that, The driving device further includes an electric control component, and the electric control component is provided with a first through hole and a second through groove, wherein: The electric control component is arranged on the side of the clutch push block away from the housing and covers the housing. The electric control component is communicatively connected with the driving motor and is provided with an electric button on one side; The output shaft penetrates through the first through hole and extends to the side of the electric control component away from the housing; The second through groove forms a clutch operation window and accommodates the operation end.

10. The drive device according to claim 2 or 3, characterized in that The first driving wheel set includes a worm gear, a worm, a first gear, a second gear and a sun gear, wherein: The worm is connected to the output end of the driving motor and meshes with the worm gear; The first gear is coaxially connected with the worm gear and is rotatably installed on the housing; The second gear is rotatably installed on the housing and meshes with the first gear and the large ring gear of the sun gear; The sun gear is installed on the first shaft end of the planet carrier, and the small ring gear of the sun gear meshes with the planet gear set.

11. The drive device according to claim 10, characterized in that, The planet gear set includes a plurality of planet gears. The plurality of planet gears are rotatably installed on the second shaft end of the planet carrier. The plurality of planet gears are evenly distributed within the gear ring and respectively mesh with the gear ring. The plurality of planet gears surround the outside of the small ring gear of the sun gear and respectively mesh with the small ring gear of the sun gear.

12. The drive device according to claim 11, characterized in that, The transmission component includes a sprocket, the sprocket is in transmission connection with the output shaft, and the sprocket is used for winding an external chain bead; Wherein, when the switching component and the gear ring are in the coupling state, the power of the driving motor is transmitted from the output end of the driving motor to the sun gear of the first driving wheel set. The small ring gear of the sun gear drives the planet gears to rotate. The planet gears drive the output shaft of the planet carrier to rotate. The output shaft of the planet carrier drives the sprocket to move. The sprocket drives the external bead chain to move; When the switching component is moved to make the switching component and the gear ring in the decoupling state, the external chain bead drives the output shaft of the planet carrier to rotate through the sprocket. The planet carrier drives the planet gears to rotate. The planet gears drive the gear ring to rotate.

13. The drive device according to claim 12, characterized in that, When the switching component is driven to move in a direction away from the gear ring, the end of the switching component is separated from the outer wall of the gear ring, so that the switching component and the gear ring are in the decoupling state.

14. An electric curtain system, characterized in that, Including: The driving device according to any one of claims 1-13; A curtain, the curtain is connected to the transmission component of the driving device.

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