A curtain driving device

Abstract

This utility model provides a curtain driving device, including a driving assembly; a first circuit board electrically connected to the driving assembly, the first circuit board having a control module for controlling the rotation of the driving assembly; and a detection module located at a position corresponding to the output end of the driving assembly for detecting the rotation parameters of the output end. The first circuit board and the driving assembly are arranged side-by-side, the axis of the driving assembly is parallel to the first circuit board, and the detection module is disposed on the first circuit board. In a fifth direction, the width of the first circuit board at the position corresponding to the detection module is greater than three times the width of the detection module, and the fifth direction is perpendicular to the axis of the driving assembly and parallel to the first circuit board. The curtain driving device provided by this utility model improves assembly efficiency.

Description

Technical Field

[0001] This utility model relates to the field of electric drive technology, and in particular to a curtain drive device. Background Technology

[0002] With the development of smart homes, everyday items are gradually becoming intelligent, freeing up people's hands and improving their quality of life. Electric curtains are a type of curtain driven by a motor; they open and close without the need for manual operation, offering convenience and speed. Electric curtains can also automatically control their opening and closing based on time changes and can be linked with other smart devices to create intelligent scenarios.

[0003] The existing curtain motors are difficult to assemble. Utility Model Content

[0004] Existing curtain motors typically consist of a power board, a control board, and a detection board. The power board and control board are located at the rear of the drive assembly, while the detection board is located at the output end of the drive assembly. The detection board and control board are relatively far apart and connected via ribbon cables. The detection board and control board are installed from opposite ends of the housing, increasing assembly difficulty. Furthermore, the separate installation of the three circuit boards further complicates the assembly process.

[0005] To address the aforementioned problems, one objective of this utility model is to provide a curtain driving device in which the detection module and the control module are mounted on the same circuit board, thereby simplifying the circuit board installation structure and reducing assembly difficulty.

[0006] Another objective of this invention is to provide a curtain driving device in which a first circuit board is first fixedly connected to the driving component, and then installed into the housing along with the driving component, thereby avoiding the circuit board and driving component being installed from both ends of the housing and improving assembly efficiency.

[0007] Another objective of this invention is to provide a curtain drive device in which the first circuit board is disposed on the side of the drive assembly, thus not occupying the space at the tail end of the drive assembly and shortening the axial length of the curtain drive device.

[0008] Another objective of this utility model is to provide a curtain driving device, wherein a first circuit board and a driving component are arranged side by side, so that the length of the first circuit board can be increased as much as possible to approach the length of the driving component, thereby increasing the area of ​​the first circuit board and enabling the first circuit board to integrate more electronic components.

[0009] Another objective of this invention is to provide a curtain driving device, wherein the width of the first circuit board at the corresponding position of the detection module is greater than a multiple of the width of the detection module, so that electronic components can be set on both the left and right sides of the detection module, and the first circuit board can integrate more electronic components, thereby reducing the number of circuit boards and reducing the space occupied by the circuit components.

[0010] Another objective of this invention is to provide a curtain driving device in which the first projection pattern and the second projection pattern have an overlapping area, making the electronic components more compact and facilitating the integration of the electronic components onto a single circuit board.

[0011] Another objective of this invention is to provide a curtain driving device in which the detection module, control module and power module are set on the same circuit board, which simplifies the circuit board installation structure, reduces assembly difficulty, and reduces the space occupied by the circuit components.

[0012] Another objective of this invention is to provide a curtain drive device in which the wire passes through the through hole into the cylindrical structure, thereby preventing the wire from contacting the motor housing inside the cylindrical structure and causing the wire to rotate with the motor housing.

[0013] Another objective of this invention is to provide a curtain drive device in which a light-blocking plate extends outward in a radial direction from the clutch housing, allowing the detection module to be disposed on the side of the clutch housing instead of at the end of the clutch housing, so that the detection module can be integrated into the first circuit board.

[0014] Another objective of this invention is to provide a curtain driving device, wherein when the clutch housing drives the signal trigger ring to rotate, the first and second magnetic poles on the signal trigger ring alternately approach the Hall element, causing the magnetic field around the Hall element to change periodically, and the Hall element obtains the rotation status of the clutch housing by detecting the change in the surrounding magnetic field.

[0015] Another objective of this invention is to provide a curtain drive device, wherein two Hall elements are used to identify signals that trigger the ring to rotate forward or backward.

[0016] To achieve at least one of the above objectives, this utility model provides a curtain driving device, including a driving component; a first circuit board electrically connected to the driving component, the first circuit board having a control module for controlling the rotation of the driving component; and a detection module located at a position corresponding to the output end of the driving component for detecting the rotation parameters of the output end; wherein the first circuit board and the driving component are arranged side by side, the axis of the driving component is parallel to the first circuit board, and the detection module is disposed on the first circuit board; in a fifth direction, the width of the first circuit board at the position corresponding to the detection module is greater than three times the width of the detection module, and the fifth direction is perpendicular to the axis of the driving component and parallel to the first circuit board.

[0017] Furthermore, the first circuit board includes a first side and a second side opposite to the first side, the control module is disposed on the first side, and the detection module is disposed on the second side; the control module projects a first projection pattern onto the first side, and the detection module projects a second projection pattern onto the first side, wherein the first projection pattern and the second projection pattern have an overlapping area.

[0018] In some embodiments, the first circuit board carries high-voltage circuits and low-voltage circuits, and the first circuit board is provided with a power module, which is used to convert high voltage into low voltage, thereby providing power to the control module, the detection module and the drive component.

[0019] Furthermore, the drive assembly includes a motor bracket and a motor disposed inside the motor bracket. The motor is a brushless motor and is connected to a wire. The motor bracket has a through hole through which the wire passes out of the motor bracket. The through hole is located on the side of the motor bracket opposite to the first circuit board.

[0020] In some embodiments, the drive assembly includes a clutch that directly or indirectly outputs power to the outside; the clutch is surrounded by a signal trigger ring, and the detection module is disposed at one end of the first circuit board near the signal trigger ring. The signal trigger ring rotates with the clutch housing and periodically triggers the detection module during rotation.

[0021] Furthermore, the signal triggering ring includes a plurality of light-shielding plates arranged at intervals along the circumference; the detection module is a photoelectric switch, the photoelectric switch is provided with a detection slot, at least one of the light-shielding plates is located in the detection slot, and the light-shielding plate periodically blocks the light signal of the photoelectric switch as the clutch rotates.

[0022] Furthermore, the clutch includes a clutch housing for outputting power, the signal trigger ring is integrally formed on the side of the clutch housing, and the light shield extends outward from the clutch housing in a radial direction.

[0023] In some embodiments, the drive assembly includes a motor bracket and a bracket cover mounted on the end of the motor bracket. The motor bracket houses a motor and a reducer, and the bracket cover houses the clutch. The first circuit board is mounted on the side of the motor bracket, and a detection hole is formed on the side of the bracket cover. The photoelectric switch extends into the detection hole.

[0024] In some embodiments, the signal triggering ring includes a plurality of first magnetic poles and a plurality of second magnetic poles; the first magnetic poles and the second magnetic poles are arranged alternately in the circumferential direction and have opposite polarities; the detection module is a Hall element, and the first magnetic poles and the second magnetic poles periodically change the magnetic field at the location of the Hall element in response to the rotation of the clutch.

[0025] Furthermore, the signal trigger ring is sleeved on the clutch; there are two Hall elements, and the arrangement direction of the two Hall elements is perpendicular to the axial direction of the drive assembly.

[0026] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit the present invention. The foregoing descriptions of the present invention can be combined in any way, and these and other objectives of the present invention will be fully realized through the following detailed description and accompanying drawings.

[0027] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit the present invention. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of a curtain drive device installed on a curtain track according to an embodiment of the present invention;

[0030] Figure 2 This is an assembly diagram of a curtain drive device and a curtain track according to an embodiment of the present invention;

[0031] Figure 3This is a schematic diagram of the structure of a curtain driving device according to an embodiment of the present invention;

[0032] Figure 4 This is an exploded view of a curtain driving device according to an embodiment of the present invention;

[0033] Figure 5 This is a perspective sectional view of the outer shell of an embodiment of this utility model;

[0034] Figure 6 This is a schematic diagram of the pressing component and end cap structure according to an embodiment of the present utility model;

[0035] Figure 7 This is an assembly diagram of the pressing component, rotating locking component, resetting component, and end cap according to an embodiment of the present utility model;

[0036] Figure 8 This is a schematic diagram of a pressing component, a rotating locking component, and a resetting component assembled on an end cap according to an embodiment of the present invention;

[0037] Figure 9 This is a schematic diagram of a portion of the structure of an embodiment of the present invention, showing the rotating latch in a locked and unlocked state;

[0038] Figure 10 This is a schematic diagram of the forces acting on the pressing member and the rotating locking member according to an embodiment of the present invention;

[0039] Figure 11 This is an assembly diagram of a portion of the structure of an embodiment of the present utility model;

[0040] Figure 12 This is a schematic diagram of the structure of a curtain driving device according to an embodiment of the present invention;

[0041] Figure 13 This is a cross-sectional view of the curtain driving device according to an embodiment of the present invention;

[0042] Figure 14 yes Figure 13 Enlarged view of part A in the image;

[0043] Figure 15 This is a schematic diagram of the circuit assembly, drive assembly, and output shaft structure according to an embodiment of the present invention;

[0044] Figure 16 This is a cross-sectional view of a circuit assembly, a drive assembly, and an output shaft according to an embodiment of the present invention;

[0045] Figure 17 This is a schematic diagram of the circuit assembly, drive assembly, and output shaft assembly according to an embodiment of the present invention;

[0046] Figure 18 This is an exploded view of a drive component according to an embodiment of the present invention;

[0047] Figure 19 This is a cross-sectional view of a clutch according to an embodiment of the present invention;

[0048] Figure 20 This is a schematic diagram of the structure of the motor, motor bracket, and reducer according to an embodiment of the present invention;

[0049] Figure 21 This is a schematic diagram of the structure of the motor and reducer according to an embodiment of the present invention;

[0050] Figure 22 This is an exploded view of a speed reducer according to an embodiment of the present invention;

[0051] Figure 23 This is a schematic diagram of a circuit component structure according to an embodiment of the present invention;

[0052] Figure 24 This is a schematic diagram of a circuit component structure according to an embodiment of the present invention;

[0053] Figure 25 This is a schematic diagram of a partial structure of one embodiment of the present utility model;

[0054] Figure 26 This is a schematic diagram of a brushless motor structure according to an embodiment of the present invention;

[0055] Figure 27 This is a schematic diagram of a partial structure of one embodiment of the present utility model;

[0056] Figure 28 This is a schematic diagram of a portion of the circuit assembly and drive assembly according to an embodiment of the present invention.

[0057] Figure 29 This is a schematic diagram of a portion of the structure of an embodiment of the present invention, showing the rotating latch in a locked and unlocked state;

[0058] Figure 30 This is a schematic diagram of a portion of the structure of an embodiment of the present invention, showing the rotating latch in a locked and unlocked state;

[0059] Figure 31 This is a schematic diagram of a portion of the structure of an embodiment of the present invention, showing the rotating latch in a locked and unlocked state;

[0060] Figure 32 This is a schematic diagram of a portion of the structure of an embodiment of the present invention, showing the rotating latch in a locked and unlocked state. Detailed Implementation

[0061] In the description of this utility model, the terms "inner", "outer", "horizontal", "vertical", "upper", "lower", "top", "bottom", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not require that this utility model must be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0062] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0063] In the description of this utility model, unless otherwise expressly specified and limited, the term "connection" and other such terms should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral part; it can refer to a mechanical connection, an electrical connection, or a connection that allows communication between the components; it can refer to a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0064] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the protection scope claimed by the present utility model.

[0065] In existing technology, curtain motors have lugs at their ends, which engage with the connecting box of the curtain track. These lugs can rotate to switch between engaged and disengaged states. When disengaged, the lugs detach from the connecting box, allowing the curtain motor to be removed. A lever is located at the top of the curtain motor, linked to the lugs. Users can move the lever to rotate the lugs, thus engaging or disengaging them from the connecting box. However, when holding the curtain motor, the user must use their other hand to move the lever, making one-handed operation impossible and increasing the difficulty of installation and disassembly.

[0066] To solve the above problems, according to the first aspect of this utility model, please refer to... Figures 1-32 Several embodiments of the curtain driving device 100 provided by this utility model will be specifically explained. For example... Figure 1As shown, the curtain drive device 100 provided by this utility model is used to drive the curtain to open and close. The curtain track 200 includes a track base 210 and a connecting box 250 disposed at the end of the track base 210. The curtain drive device 100 is connected to the connecting box 250. A pulley connected to the output shaft 7 of the curtain drive device 100 is disposed inside the connecting box 250. A synchronous belt that cooperates with the pulley is laid inside the track base 210. The synchronous belt is connected to a trolley 220. The curtain drive device 100 drives the trolley 220 to slide on the track through the pulley and the synchronous belt. A plurality of slidable hanging rings 230 are disposed between the trolley 220 and the connecting box 250. A non-slidable fixing ring 240 is disposed at the right end of the connecting box 250. One end of the curtain is hung on the fixing ring 240, and the other end is hung on the trolley 220. The other parts of the curtain are hung on the hanging rings 230. The trolley 220 pulls the curtain to open and close, and the hanging rings 230 slide with the curtain.

[0067] In some embodiments, such as Figure 3 and Figure 2 As shown, the curtain drive device 100 includes a main body 110, a rotating latch 1 disposed at the end of the main body 110, and a pressing member 2 that is pulsatorically connected to the rotating latch 1; the rotating latch 1 is used to latch onto the curtain track 200 and can rotate to switch between locked and unlocked states.

[0068] To solve the problems in the prior art, such as Figure 3 As shown, the pressing member 2 is provided with a button 21 protruding from the side of the main body 110. The button 21 can receive pressing force and move toward the inside of the main body 110 in response to the pressing force. The pressing member 2 moves based on the movement of the button 21. The pressing member 2 and the rotating latch 1 are connected by a transmission structure. The transmission structure drives the rotating latch 1 to rotate based on the movement of the pressing member 2.

[0069] The curtain drive device 100 provided by this utility model has a button 21 on its side that, when pressed, causes the rotating latch 1 to rotate, thereby switching the rotating latch 1 from a locked state to an unlocked state. When the curtain drive device 100 is installed in the target position, the button 21 and the rotating latch 1 are reset to their initial state, and the rotating latch 1 switches from the unlocked state to the locked state, locking the curtain drive device 100 into the connecting box 250. The user can press the button 21 while holding the curtain drive device 100 with one hand, achieving one-handed installation / removal of the curtain drive device 100 and reducing the difficulty of installation / removal.

[0070] The button 21 can be understood as a structural component that can be pressed and moved toward the inside of the main body 110. Its shape can be circular, square, or an irregular shape. It should be noted that the rotating locking component 1 is provided at the end of the main body 110, and the side of the main body 110 should be understood as excluding this end. Since the button 21 protrudes from the side of the main body 110, the user can apply a pressing force perpendicular to the side of the main body 110, and the button 21 will laterally retract into the main body 110 under the action of the pressing force. The movement of the pressing component 2 based on the movement of the button 21 can be understood as the button 21 being integrally formed or fixedly connected to the pressing component 2, so that the two move synchronously, or the two are connected by other means that can produce linkage (e.g., abutting). In one embodiment, the button 21 is integrally formed with the pressing component 2, and the pressing component 2 moves synchronously with the button 21.

[0071] The transmission connection can be understood as a connection method capable of transmitting motion, such as contact, gear meshing transmission, linkage transmission, etc., and includes direct transmission connections and indirect transmission connections. The transmission structure can be understood as a structure capable of transmitting power, such as contact structure, gear meshing transmission structure, linkage transmission structure, etc. The transmission structure will be described in detail below through several embodiments.

[0072] The movement of the pressing member 2 can be sliding, rotating, or other forms of movement. In some embodiments, such as... Figure 9 , Figure 29 , Figure 30 , Figure 31 As shown, the pressing member 2 slides along a straight line; in other embodiments, such as Figure 32 As shown, the pressing member 2 rotates based on the pivot 24.

[0073] The button 21 and the rotary latch 1 can be automatically reset under the elastic force of the reset member 3 (e.g., Figure 9 , Figure 30 , Figure 31 , Figure 32 The embodiment shown can also be reset manually by the user (e.g., ...). Figure 29 (As shown in the embodiment). The process of resetting button 21 and rotary latch 1 will be described in detail below.

[0074] In some embodiments, such as Figure 9 , Figure 30 , Figure 31 , Figure 32As shown, the main body 110 includes a reset member 3, which is connected to the rotary locking member 1 and is used to provide a reset force to the rotary locking member 1. The reset member 3 can be understood as a component capable of providing a reset force, such as a spring, tension spring 31, or spring sheet. In some embodiments, the reset member 3 includes a tension spring 31.

[0075] Thanks to the reset component 3 providing a reset force to the rotating latch 1, when the pressure applied to the button 21 is removed, the pressing component 2 and the rotating latch 1 automatically reset under the action of the reset force, eliminating the need for the user to perform a reset operation. That is, when the user installs the curtain drive device 100 to the target position, he / she only needs to release the finger pressing the button 21, the button 21 automatically pops up, the pressing component 2 and the rotating latch 1 automatically reset under the action of the reset force, the rotating latch 1 switches to the locked state, and the installation is completed immediately, greatly improving the convenience of installation.

[0076] In addition, it is worth mentioning that the reset member 3 can also provide a pre-tightening force to the rotating latch 1. The pre-tightening force prevents the rotating latch 1 from becoming unlocked, thus preventing the curtain drive device 100 from accidentally falling off during use. Furthermore, the pre-tightening force ensures that the rotating latch 1 and the pressing member 2 are always in a state of close transmission, preventing the pressing member 2 from having a free stroke and becoming loose or affecting the pressing feel.

[0077] In some implementations, such as Figures 6-9 As shown, the pressing member 2 is slidably connected to the main body 110. The sliding direction of the pressing member 2 is perpendicular to the rotation axis of the rotating latch 1, so that the pressing force does not generate a component force in the axial direction of the rotating latch 1, and the rotational resistance of the rotating latch 1 is smaller. The button 21 protrudes from the first side of the main body 110, and the sliding direction of the pressing member 2 is perpendicular to the first side, so that the sliding direction of the pressing member 2 is consistent with the direction of the pressing force, making pressing easier. The sliding connection can be understood as a connection method in which the pressing member 2 and the main body 110 can slide relative to each other in one degree of displacement freedom. In the exemplary embodiment, the sliding connection can be a slider and a slide cylinder connection, a slider and a slide groove connection, or other sliding connection methods. The rotation axis can be understood as the rotation center line, not a physical axis. The axial direction of the rotating latch 1 can be understood as the direction of the rotation axis. The perpendicularity of the sliding direction of the pressing member 2 to the rotation axis can be understood as spatial perpendicularity, and the two do not necessarily intersect.

[0078] In some embodiments, such as Figures 7-9 , Figures 29-32As shown, the transmission structure includes a first transmission part 22 disposed on the pressing member 2 and a second transmission part 11 disposed on the rotary locking member 1; the first transmission part 22 is directly or indirectly connected to the second transmission part 11. The direct or indirect connection can be understood as a direct connection (including abutment) or an indirect connection through other parts. The first transmission part 22 may be integrally formed on the pressing member 2 or fixedly connected to the pressing member 2; the second transmission part 11 may be integrally formed on the rotary locking member 1 or fixedly connected to the rotary locking member 1; the technical details of the first transmission part 22 and the second transmission part 11 are described in detail below.

[0079] Furthermore, such as Figure 9 , Figure 10 , Figures 29-32 As shown, a first distance exists between the second transmission part 11 and the rotation axis of the rotary locking member 1. The thrust F1 applied by the first transmission part 22 to the second transmission part 11 forms a first torque T1 relative to the rotation axis, driving the rotary locking member 1 to rotate. Here, the rotation axis can be understood as a rotation center line, not a physical shaft. In an exemplary embodiment, as... Figure 10 As shown, the direction of the thrust F1 is vertically downward, and the horizontal component of the first distance is L1. L1 forms the lever arm of F1, so that F1 generates the first torque T1 relative to the rotating shaft, thereby T1 drives the rotating locking member 1 to rotate.

[0080] In some embodiments, such as Figure 9 As shown, the pressing member 2 is slidably connected to the main body 110. The rotation center of the rotating locking member 1 is oriented towards the second transmission part 11 in a first direction. The rotating locking member 1 exists in a first state within its rotation range. In the first state, the first direction is perpendicular to the sliding direction of the pressing member 2. Therefore, when the rotating locking member 1 is in the first state, the value of L1 is equal to the first distance, L1 reaches its maximum value, and the corresponding first torque T1 reaches its maximum value. At this time, the user needs to exert the least effort to drive the rotating locking member 1. Therefore, in this embodiment, the rotating locking member 1 exists in the first state within its rotation range, making it easier to drive the rotating locking member 1.

[0081] Figure 9 The left image shows button 21 not being pressed, with the rotating latch 1 in the locked state. At this time, the first direction is slightly to the upper left. Figure 9The right figure shows the state where button 21 is pressed, and the rotating latch 1 is in the unlocked state. At this time, the first direction is a downward leftward direction. During the process of rotating the latch 1 from the locked state to the unlocked state, the first state exists. In the first state, the first direction is a horizontal leftward direction, which is perpendicular to the sliding direction of the pressing member 2.

[0082] In some embodiments, such as Figure 7 and Figure 8 As shown, the rotating buckle 1 includes a collar 12, which is rotatably connected to the main body 110. The second transmission part 11 extends outward from the side of the collar 12. The first transmission part 22 abuts against the second transmission part 11. By abutting, power is transmitted, so that the pressing pressure is transmitted more directly to the second transmission part 11, improving the pressing feel. At the same time, the transmission structure can be simplified and the space occupied by the transmission structure can be reduced.

[0083] Further, the second transmission part 11 includes a protruding tooth 111, which extends radially outward from the collar 12; the first transmission part 22 is disposed at the end of the pressing member 2 away from the button 21, and the first transmission part 22 abuts against the protruding tooth 111. The first transmission part 22 drives the rotating latch member 1 to rotate by pushing the protruding tooth 111. The number of protruding teeth 111 can be one or more. In one embodiment, such as... Figure 8 As shown, the number of the protruding teeth 111 is one, and the first transmission part 22 includes a first transmission surface that abuts against the protruding teeth 111, and the first transmission surface abuts against the protruding teeth 111 for transmission.

[0084] In some embodiments (not shown in the figure), the number of the protruding teeth 111 can be multiple, and the first transmission part 22 is constructed as a rack, which meshes with the protruding teeth 111 for transmission.

[0085] Furthermore, such as Figure 7 and Figure 10 As shown, the protruding tooth 111 includes a second transmission surface that abuts against the first transmission part 22. The second transmission surface is constructed as an outwardly convex curved surface, so that the second transmission surface forms a gear meshing surface. The second transmission surface abuts against the first transmission part 22 to drive a gear meshing transmission, thereby making the transmission smoother and more stable and improving the pressing feel.

[0086] In some embodiments, such as Figure 4 As shown, the main body 110 includes a housing 4 and an end cap 5 disposed at the end of the housing 4, as... Figures 7-8As shown, the pressing member 2 is slidably connected to the end cap 5; the first transmission part 22 includes a first transmission surface that abuts against the protruding tooth 111; the first transmission part 22 extends a limiting wall 28, the limiting wall 28 is disposed on the side of the protruding tooth 111 away from the end cap 5, the protruding tooth 111 is limited between the limiting wall 28 and the end cap 5, thereby ensuring that the second transmission surface of the protruding tooth 111 is in direct contact with the first transmission surface, improving transmission stability, and also avoiding the second transmission surface from being misaligned with the first transmission surface, resulting in disengagement.

[0087] Furthermore, the first transmission surface is a plane perpendicular to the sliding direction of the pressing member 2, and the limiting wall 28 extends from the first transmission part 22 toward the second direction, which is the sliding direction of the pressing member 2 when it is pressed.

[0088] In some embodiments, such as Figure 7 and Figure 8 As shown, the pressing member 2 is slidably connected to the end cover 5, and the rotating locking member 1 is rotatably connected to the end cover 5; a protruding ring 51 is provided on the back of the end cover 5, and the collar 12 of the rotating locking member 1 is sleeved on the protruding ring 51 to realize the rotating locking member 1 being rotatably connected to the end cover 5.

[0089] Furthermore, such as Figures 7-9 As shown, connecting hooks 13 are respectively provided on both sides of the collar 12. The end cap 5 has arc-shaped holes 52 at the corresponding positions of the two connecting hooks 13. The connecting hooks 13 extend through the arc-shaped holes 52 to the outside of the end cap 5. The connecting hooks 13 are used to lock onto the curtain track 200. When the rotating latch 1 rotates, the connecting hooks 13 move in the arc-shaped holes 52. The connecting hooks 13 switch between the locked position and the unlocked position. The locked position corresponds to the rotating latch 1 being in the locked state, and the unlocked position corresponds to the rotating latch 1 being in the unlocked state.

[0090] Among them, such as Figure 9 As shown in the left figure, button 21 is not pressed at this time, and the rotating latch 1 remains locked under the elastic force of the reset member 3, with the two connecting hooks 13 in the locked position; when button 21 is pressed, the pressing member 2 presses against the second transmission part 11, causing the rotating latch 1 to rotate counterclockwise, as shown in the left figure. Figure 9 As shown in the right figure, the rotating buckle 1 is in the unlocked state at this time, and the two connecting hooks 13 are in the unlocked position.

[0091] like Figure 9As shown in the right figure, when the connecting hook 13 is in the unlocked position, the connecting hook 13 is within the range of the arc-shaped hole 52. The connecting hook 13 can pass through the arc-shaped hole 52. When installing the rotating buckle 1, the connecting hook 13 must first be rotated to the unlocked position so that the connecting hook 13 can pass through the arc-shaped hole 52, thereby fitting the collar 12 onto the protruding ring 51.

[0092] Furthermore, such as Figure 7 As shown, the connecting hook 13 includes a vertical arm extending from the collar 12 and a horizontal arm disposed at the end of the vertical arm. The vertical arm extends outward toward the end cap 5, and its extension direction is perpendicular to the plane of the collar 12. The extension direction of the horizontal arm is parallel to the plane of the collar 12. The horizontal arm extends in an arc shape, and its shape is adapted to the arc-shaped hole 52, so that the horizontal arm can pass through the arc-shaped hole 52.

[0093] In some embodiments, such as Figure 2 As shown, the connecting box 250 of the curtain track 200 is located at the end of the curtain track 200. The connecting box 250 has a plug hole 251, a locking hole 252, and a positioning hole 253. The plug hole 251 is a flat hole located at the center of the pulley. The shape of the plug hole 251 is adapted to the output shaft 7 of the curtain drive device 100. A locking hole 252 is provided on each side of the plug hole 251. The shape and position of the locking hole 252 correspond to the arc-shaped hole 52. When the rotating buckle 1 is in the unlocked state, the connecting hook 13 is passed through the locking hole 252, and at the same time, the output shaft 7 of the curtain drive device 100 is inserted into the plug hole 251. When the rotating buckle 1 is in the locked state, the horizontal arm of the connecting hook 13 is hooked onto the bottom plate of the connecting box 250, locking the curtain drive device 100 at the bottom of the connecting box 250. Furthermore, two positioning posts 54 are protruding from the upper surface of the end cap 5. The positioning posts 54 are inserted into the positioning holes 253 of the connecting box 250, thereby restricting the horizontal rotation of the curtain drive device 100.

[0094] Furthermore, such as Figure 2 As shown, a positioning edge 254 is provided around the lower surface of the connecting box 250, such as... Figure 3 As shown, a plurality of positioning blocks 53 are provided near the edge of the upper surface of the end cap 5. The positioning blocks 53 abut against the outside of the positioning edge 254 to achieve more precise positioning of the curtain drive device 100 and the connecting box 250 and prevent the curtain drive device 100 from shaking. The positioning blocks 53 are integrally formed in the end cap 5, and the positioning edge 254 is integrally formed in the housing of the connecting box 250.

[0095] It is worth mentioning that the positioning post 54 has a relatively large clearance with the positioning hole 253, resulting in low positioning accuracy. Its function is to prevent damage to the positioning block 53 and positioning edge 254, which could lead to positioning failure, when the curtain drive device 100 is impacted, thus ensuring the curtain drive device 100 does not detach from the connecting box 250. Furthermore, both the positioning post 54 and the bottom plate of the connecting box 250 with the positioning hole 253 are made of metal to enhance strength. The bottom of the positioning post 54 has a knurled shaft, and the positioning post 54 is riveted to the end cap 5.

[0096] In some embodiments, such as Figure 2 and Figure 1 As shown, the bottom of the connecting box 250 is provided with a fixing ring 240, which is used to hang curtains. The side of the bottom of the connecting box 250 that is biased towards the track base 210 is designated as the third side. The fixing ring 240 is positioned off-center on this third side to avoid interference with the button 21, while also providing space for the user's fingers so that pressing the button 21 will not interfere with the fixing ring 240. The side of the curtain drive device 100 includes a fourth side facing the track base 210, and the button 21 is positioned at the top center of this fourth side.

[0097] In some embodiments, such as Figure 8 As shown, the reset component 3 includes a tension spring 31, which has the advantages of good stability and convenient installation. The tension spring 31 is connected between the collar 12 and the end cover 5. Since the pressing component 2 is slidably connected to the end cover 5 and the rotating locking component 1 is rotatably connected to the end cover 5, during assembly, the end cover 5, the sliding component, the rotating locking component 1, and the tension spring 31 are assembled as a whole and then assembled into the outer shell 4, improving the convenience of assembly.

[0098] Furthermore, such as Figure 8 As shown, the rotary locking component 1 includes a first hook 14, and the end cap 5 is provided with a second hook 55. A tension spring 31 is installed between the first hook 14 and the second hook 55, and the tension spring 31 provides a restoring force for the rotary locking component 1. The first hook 14 is integrally formed into the rotary locking component 1, and the second hook 55 is integrally formed into the end cap 5, as shown. Figure 9As shown, the angle between the opening direction of the first hook 14 and the opening direction of the second hook 55 is an obtuse angle. The rings at both ends of the tension spring 31 are respectively fitted onto the first hook 14 and the second hook 55. When the button 21 is not pressed, the tension spring 31 is in a slightly stretched state, which not only provides preload but also prevents the tension spring 31 from falling off. When the button 21 is pressed, the pressing member 2 drives the rotating latch 1 to rotate counterclockwise, and the tension spring 31 is gradually stretched, increasing its tension force, which is the reset force. When the pressing force is removed, the rotating latch 1, the pressing member 2, and the button 21 reset under the action of the reset force of the tension spring 31.

[0099] Furthermore, the first hook 14 is located on the side of the collar 12 away from the second transmission part 11, and the first hook 14 extends radially outward from the collar 12. The tension of the tension spring 31 forms a second torque T2 relative to the rotation center of the collar 12, and the direction of the second torque T2 is opposite to the direction of the first torque T1.

[0100] In some embodiments, such as Figure 7 and Figure 8 As shown, the back of the end cap 5 is provided with a first sliding groove and a second sliding groove on both sides of the pressing member 2, respectively. The opening directions of the first sliding groove and the second sliding groove are opposite. The pressing member 2 includes sliding edges disposed on both sides, and the sliding edges are slidably inserted into the first sliding groove and the second sliding groove. In an exemplary embodiment, as... Figure 8 As shown, the first sliding groove includes two first hooks 561, which are integrally formed on the end cap 5. The second sliding groove includes one second hook 562, which is integrally formed on the end cap 5. The hooking direction of the first hook 561 is opposite to the hooking direction of the second hook 562. The second sliding groove is formed between the second hook 562 and the end cap 5, and the first sliding groove is formed between the first hook 561 and the end cap 5.

[0101] Furthermore, such as Figure 7 As shown, the back of the end cap 5 is provided with two slide rails 563, the extending direction of the slide rails 563 being parallel to the sliding direction of the pressing member 2, and... Figure 6 As shown, the pressing member 2 has a third sliding groove 26 on the side facing the end cover 5, which is adapted to the slide rail 563. When the pressing member 2 is installed on the end cover 5, the slide rail 563 is embedded in the third sliding groove 26, and the slide rail 563 can slide within the third sliding groove 26. The slide rail 563 cooperates with the third sliding groove 26 to enhance the sliding stability of the pressing member 2 and ensure that the pressing member 2 stably drives the rotating locking member 1.

[0102] Furthermore, such as Figure 6As shown, the pressing member 2 has two supporting ribs 27 on the side facing the end cap 5. The supporting ribs 27 are located on both sides of the pressing member 2, and the extending direction of the supporting ribs 27 is parallel to the sliding direction of the pressing member 2. The pressing member 2 abuts against the back of the end cap 5 through the supporting ribs 27. The supporting ribs 27 can reduce the friction between the pressing member 2 and the end cap 5, and make the gap between the pressing member 2 and the end cap 5 more precise, thereby making the sliding edge of the pressing member 2 cooperate more smoothly with the first sliding groove and the second sliding groove.

[0103] Furthermore, such as Figure 8 As shown, the first transmission part 22 is disposed on the side of the pressing member 2 near the first slide groove. The first transmission part 22 also includes a drive arm 221 extending from the pressing member 2 toward a second direction. The end of the drive arm 221 abuts against the second transmission part 11. The end cover 5 is provided with a stop 567 extending in a second direction, which is the direction in which the pressing member 2 slides when pressed. During the sliding process, the stop 567 abuts against the side of the drive arm 221 to provide support, making the transmission between the drive arm 221 and the second transmission part 11 more stable. The first transmission surface is set as the end face of the drive arm 221.

[0104] In some embodiments, such as Figure 6 and Figure 3 As shown, the button 21 is provided with a protrusion 211, which protrudes from the side of the pressing member 2 facing the end cover 5. The end cover 5 is provided with a sliding groove 57 for accommodating the protrusion 211. When the button 21 is not pressed, a portion of the protrusion 211 is embedded in the sliding groove 57. When the button 21 is pressed, the protrusion 211 slides in the sliding groove 57. When the protrusion 211 slides to abut against the sliding groove 57, the protrusion 211 is blocked by the sliding groove 57. Thus, the sliding groove 57 can limit the extreme position of the sliding of the pressing member 2, and prevent the pressing member 2 from driving the rotating locking member 1 with excessive force, which would damage the rotating locking member 1.

[0105] like Figure 9As shown, the steps for assembling the pressing member 2, the rotating locking member 1, and the tension spring 31 into the outer casing 4 are as follows: First, the rotating locking member 1 is adjusted to the unlocked state so that the connecting hook 13 can pass through the arc-shaped hole 52. The connecting hook 13 is passed through the arc-shaped hole 52, and the collar 12 of the rotating locking member 1 is fitted onto the protruding ring 51 of the end cover 5, with the collar 12 fitting against the back of the end cover 5. Then, the tension spring 31 is installed between the first hook 14 and the second hook 55, and the rotating locking member 1 rotates to the locked state under the tension of the tension spring 31. Finally, the pressing member 2 is inserted into the first and second sliding grooves of the end cover 5 from one end of the end cover 5. When the pressing member 2 slides to the point where the first transmission part 22 abuts against the second sliding part, the installation is complete.

[0106] like Figure 11 As shown, a button hole 41 is opened on the side wall of the outer shell at the position corresponding to the button 21. When the end cover 5 is installed on the outer shell 4, the pressing member 2 is restricted inside the outer shell 4. The button 21 passes through the button hole 41. The inner wall of the outer shell 4 is provided with an abutting rib 42. The abutting rib 42 abuts against the end of the pressing member 2 to limit the extreme position of the button 21 popping outward.

[0107] Existing curtain motors mount the rotating hook (i.e., the rotating latch) on the outside of the end cover. A metal cover plate is fixedly connected to the outside of the end cover, and the metal cover plate and the end cover clamp the collar of the rotating hook in the middle to achieve axial limitation of the collar. The metal cover plate has an arc-shaped hole for the hook to pass through. This design structure is relatively complex, and the combined thickness of the end cover, rotating hook, and metal cover plate increases the overall thickness.

[0108] In the embodiments of this utility model, such as Figure 11 As shown, the main body 110 also includes a drive assembly 6 disposed inside the outer casing 4, and the side of the collar 12 facing away from the end cap 5 is abutted and limited by the drive assembly 6. The collar 12 is limited between the end cap 5 and the drive assembly 6. When the end cap 5 is installed on the outer casing 4, the collar 12 is clamped between the end cap 5 and the drive assembly 6. The end cap 5 and the drive assembly 6 axially limit the collar 12, eliminating the need for a dedicated axial limiting structure for the collar 12. This not only simplifies the structure but also, compared to existing curtain motors, the curtain drive device 100 provided by this utility model does not require a metal cover plate, thus reducing its thickness.

[0109] Among them, such as Figures 17-22 As shown, the drive assembly 6 includes a motor bracket 61, a motor 62, a reducer 63, and a clutch 64; as Figure 11As shown, the curtain drive device 100 also includes an output shaft 7, which is connected to the clutch 64. The output shaft 7 passes through the collar 12 and the end cover 5 to output power externally. The technical details of the drive assembly 6 will be described in detail below. It is worth noting that in this embodiment of the present invention, the drive assembly 6 does not include the output shaft 7, which is connected to the output end of the clutch 64.

[0110] In some embodiments, such as Figure 11 As shown, the end face of the drive assembly 6 is provided with an abutment ring 651, which abuts against the collar 12 to prevent the collar 12 from disengaging from the protruding ring 51. The collar 12 is clamped between the back of the end cap 5 and the protruding ring 51, with a small gap between the back of the end cap 5, the collar 12, and the protruding ring 51 to prevent the collar 12 from being clamped and unable to rotate. The abutment ring 651, the collar 12, and the protruding ring 51 are coaxially arranged.

[0111] Furthermore, the output shaft 7 passes through the collar 12, the convex ring 51, and the end cover 5 to output power externally.

[0112] In existing technology, the drive component of a curtain motor is generally fixedly connected to an end cap, which in turn is fixedly connected to the outer casing, thus achieving a fixed connection between the three. This not only increases the difficulty of assembly, but also, because the drive component is not directly connected to the outer casing, and due to the large weight of the drive component, when the curtain motor is dropped or impacted, the drive component is prone to shaking inside the outer casing, causing the end cap to crack and the drive component to impact the outer casing.

[0113] To address the above problems, in the embodiments of this utility model, such as Figure 4 and Figure 5 As shown, the end cap 5 has multiple first through holes 581, the drive assembly 6 has a second through hole 66 at a corresponding position of each of the first through holes 581, and the inner wall of the outer shell 4 has a first connecting post 43 at a corresponding position of each of the second through holes 66. The first connecting post 43 has a threaded connection hole. A connecting screw 582 is provided in the first through hole 581 of the end cap 5. The connecting screw 582 passes through the first through hole 581 and the second through hole 66 from the outside of the end cap 5 and connects to the threaded connection hole to fix the end cap 5, the drive assembly 6 and the outer shell 4 together.

[0114] In this embodiment of the utility model, the end cap 5, the drive component 6 and the outer shell 4 are fixedly connected together by connecting screws 582, which not only simplifies the assembly steps, but also ensures a stable connection between the drive component 6 and the outer shell 4, and prevents the drive component 6 from shaking inside the outer shell 4.

[0115] Furthermore, such as Figure 4As shown, there are four first through holes 581, which are rectangularly distributed on the end cap 5. There are also four second through holes 66, which are distributed at the four corners of the end face of the drive assembly 6.

[0116] In existing curtain motors, a swing rod connects the rotating lug to the operating rod. When the user moves the operating rod, it causes the swing rod to swing, which in turn causes the rotating lug to rotate. The swing rod is clamped between a metal cover plate and an end cap. However, in this embodiment, the rotating locking element 1 is located on the back of the end cap 5. Therefore, the existing operating rod and swing rod structures are no longer suitable for this embodiment. In this embodiment, as... Figure 7 As shown, the pressing member 2 is slidably connected to the back of the end cap 5. The pressing member 2 is slidably limited by the end cap 5, eliminating the need for a dedicated limiting member to limit the pressing member 2, thus simplifying the structure. The technical details of the pressing member 2 and the end cap 5 have been described in detail above and will not be repeated here.

[0117] In existing curtain motors, the drive components and circuit boards are installed separately inside the housing, which increases the difficulty of assembly due to the limited space inside the housing.

[0118] In the embodiments of this utility model, such as Figures 15-17 As shown, the curtain drive device 100 also includes a circuit assembly 8; the circuit assembly 8 is fixedly connected to the side of the drive assembly 6, so that the circuit assembly 8 and the drive assembly 6 form an integral whole and are integrally installed into the housing 4; the drive assembly 6 is fixedly connected to the side wall of the housing, and the circuit assembly 8 is indirectly fixed to the side wall of the housing through the drive assembly 6.

[0119] In this embodiment of the invention, the circuit assembly 8 and the drive assembly 6 are connected as a whole before being installed in the housing 4, avoiding the need to assemble the circuit assembly 8 inside the housing 4, reducing operational difficulty and improving assembly efficiency. Furthermore, the circuit assembly 8 includes a detection module 82 for detecting the rotation of the drive assembly 6. Fixing the circuit assembly 8 to the drive assembly 6 improves the relative positional accuracy between the two, enhancing the positional accuracy of the detection module 82 relative to the drive assembly 6 and making the detection more precise.

[0120] Existing curtain motors require the drive components and circuit boards to be fixedly installed inside the housing. This necessitates that the housing be designed with open ends to ensure that the drive components and circuit boards can be assembled inside the housing. Consequently, end caps need to be installed at both ends of the housing, resulting in an increased number of parts and poor housing integrity.

[0121] In this embodiment of the invention, thanks to the circuit assembly 8 and the drive assembly 6 being integrally housed within the housing 4, the housing 4 does not need to be designed as a structure open at both ends. In this embodiment of the invention, as... Figure 4 and Figure 5 As shown, the outer casing 4 is constructed with one end open and the other end closed, comprising an integrally formed outer casing sidewall and outer casing bottom wall. The circuit assembly 8 and the drive assembly 6 are installed from one end of the outer casing 4, which not only reduces the number of end caps 5 but also improves the integrity of the outer casing 4. The inner sidewall of the outer casing has multiple protruding first connecting portions, which are suspended relative to the outer casing bottom wall. The drive assembly 6 has second connecting portions at corresponding positions to each of the first connecting portions, and the second connecting portions are fixedly connected to the first connecting portions. The suspended arrangement of the first connecting portions allows them to be closer to the open end of the outer casing 4, facilitating the assembly of the drive assembly 6 by the operator. The fixed connection can be a screw connection, a snap-fit ​​connection, etc., and the first connecting portion can be a snap-fit, a connecting post, etc., while the second connecting portion can be a snap-fit ​​hole, a through hole, etc.

[0122] In some embodiments, such as Figure 5 and Figure 4 As shown, the first connecting part includes a first connecting post 43, which is integrally formed on the side wall of the outer shell; the first connecting post 43 has a threaded connecting hole, and a connecting screw 582 passes through the second connecting part. The connecting screw 582 is fixedly connected to the threaded connecting hole, thereby fixing the second connecting part to the first connecting part.

[0123] Furthermore, such as Figure 4 As shown, the end cap 5 is disposed at the open end of the outer shell 4. The end cap 5 has a plurality of first through holes 581. The second connecting part has second through holes 66 at the corresponding positions of each of the threaded connecting holes. The second through holes 66 are directly opposite to the first through holes 581. The connecting screw 582 passes through the first through holes 581 and the second through holes 66 from the outside of the end cap 5 and connects to the threaded connecting holes to fix the end cap 5 and the driving assembly 6 to the outer shell 4.

[0124] In this embodiment of the utility model, the end cap 5 and the drive assembly 6 are fixedly connected to the outer shell 4 together with the connecting screw 582, which simplifies the assembly steps and ensures that the drive assembly 6 and the outer shell 4 are firmly connected.

[0125] In some embodiments, such as Figure 13As shown, the drive assembly 6 includes a motor 62, a reducer 63, and a clutch 64. The motor 62, reducer 63, and clutch 64 are coaxially arranged. The coaxial arrangement can be understood as the rotation axes of the motor output shaft 621, the reducer output disc, and the clutch output disc being coaxial. The drive assembly 6 is installed in the housing 4 in a direction parallel to the axial direction of the motor 62.

[0126] In some embodiments, such as Figure 21 and Figure 22 As shown, a spline wheel 628 is mounted on the motor output shaft 621. The spline wheel 628 is machined with external splines. The reducer 63 includes a reducer input shaft 633. One end of the reducer input shaft 633 is machined with an internal spline groove. The spline wheel 628 is embedded in the internal spline groove to realize the transmission of power between the motor 62 and the reducer 63.

[0127] like Figure 22 As shown, the reducer 63 further includes a reducer housing 635, a first-stage planetary carrier 636, a second-stage planetary carrier 638, three first-stage planetary gears 634, and three second-stage planetary gears 637. The first-stage planetary carrier 636 includes a first-stage planetary disk and three first-stage planetary shafts perpendicular to the first-stage planetary disk. The three first-stage planetary gears 634 are rotatably mounted on the three first-stage planetary shafts. The second-stage planetary carrier 638 includes a second-stage planetary disk and three second-stage planetary shafts perpendicular to the second-stage planetary disk. The three second-stage planetary gears 637 are rotatably mounted on the three second-stage planetary shafts.

[0128] The input shaft 633 of the reducer is machined with a first-stage sun gear 6331, and the inner wall of the reducer housing 635 is machined with a first-stage internal gear ring and a second-stage internal gear ring. The first-stage sun gear 6331, the first-stage planetary gears 634, and the first-stage internal gear ring cooperate to form a first-stage planetary reducer 63. The first-stage sun gear 6331 and the first-stage planetary gears 634 are both helical gears, and the first-stage internal gear ring is a helical gear ring.

[0129] A second-stage sun gear 6361 is machined on the end of the first-stage planetary carrier 636 away from the first-stage planetary shaft. The second-stage sun gear 6361, the second-stage planetary gears 637, and the second-stage internal gear ring cooperate to form the second-stage planetary reducer 63. The second-stage planetary carrier 638 serves as the output end of the reducer 63. A second keyway is provided on the end of the reducer 63 away from the second-stage planetary shaft. A second key shaft is provided on the clutch input shaft 646. The second key shaft is embedded in the second keyway to realize power transmission between the reducer 63 and the clutch 64.

[0130] Furthermore, such as Figure 22As shown, one end of the reducer housing 635 is open, and a reducer cover 639 is provided on the open end cover 5. The second-stage planetary carrier 638, the second-stage planetary gear 637, the first-stage planetary carrier 636, the first-stage planetary gear 634, and the reducer input shaft 633 are installed from the open end of the reducer housing 635 and are confined inside the reducer housing 635 by the reducer cover 639.

[0131] In some embodiments, such as Figure 16 and Figure 17 As shown, the circuit assembly 8 includes a first circuit board 81 and a control module 84 disposed on the first circuit board 81; the drive assembly 6 includes a motor bracket 61 and a motor 62 and a reducer 63 disposed inside the motor bracket 61. The motor 62 is electrically connected to the first circuit board 81, and the control module 84 controls the rotation of the motor 62; the first circuit board 81 is fixedly connected to the side of the motor bracket 61, and the motor output shaft 621 is parallel to the first circuit board 81.

[0132] Compared to existing curtain motors that place the circuit board at the tail end of the drive assembly, this embodiment of the invention places the first circuit board 81 on the side of the drive assembly 6, without occupying the space at the tail end of the drive assembly 6, thus shortening the axial length of the curtain drive device 100. Furthermore, the first circuit board 81 is parallel to the motor output shaft 621, allowing the length of the first circuit board 81 to be increased as much as possible, thereby approaching the length of the drive assembly 6, which in turn increases the area of ​​the first circuit board 81. This allows the first circuit board 81 to integrate more electronic components, reducing the number of circuit boards and minimizing the space occupied by the circuit assembly 8 on the side of the curtain drive device 100, ultimately achieving the goal of reducing the size of the curtain drive device 100.

[0133] The first circuit board 81 and the motor bracket 61 can be fixedly connected by screws or by snap-fit. In an exemplary embodiment, such as... Figure 17 As shown, the first circuit board 81 is fixedly connected to the motor bracket 61 by circuit board screws 88. The motor bracket 61 has three circuit board fixing posts 611 on its side. The first circuit board 81 has first insertion holes 811 at corresponding positions on each of the circuit board fixing posts 611. Each circuit board fixing post 611 is inserted into the first insertion hole 811, and each circuit board fixing post 611 is connected to a circuit board screw 88. The circuit board screws 88 fix the first circuit board 81 to the circuit board fixing post 611. A clearance is left between the circuit board fixing post 611 and the side of the first insertion hole 811. Further, the side of the motor bracket 61, within the area covered by the first circuit board 81, is provided with bent positioning ribs 612. The bent positioning ribs 612 bend in the middle section, such as... Figure 23As shown, the first circuit board 81 is provided with a bending positioning hole 812 that matches the shape of the bending positioning rib 612. The bending positioning rib 612 is inserted into the bending positioning hole 812 so that the first circuit board 81 and the motor bracket 61 are precisely positioned.

[0134] In some embodiments, the circuit assembly 8 includes only one circuit board, namely the first circuit board 81, which integrates the control module 84, the detection module 82 and the power module 83.

[0135] In some embodiments, such as Figure 18 and Figure 17 As shown, the motor bracket 61 has a clearance recess 619 on the side facing the first circuit board 81. The clearance recess 619 is used to avoid electronic components located on the back of the first circuit board 81, thereby shortening the distance between the first circuit board 81 and the motor bracket 61 and reducing the space occupied by the circuit assembly 8 and the drive assembly 6.

[0136] In some embodiments, such as Figure 11 and Figure 7 As shown, the curtain drive device 100 further includes an operating member 20 and a rotating latch 1. The rotating latch 1 is used to lock onto the curtain track 200. The operating member 20 can be operated to switch the locking / unlocking state of the rotating latch 1. The operating member 20 includes an operating part 201, which is used to receive operating force, such as... Figure 13 As shown, the first circuit board 81 is disposed on the side of the motor bracket 61 near the operating part 201, so that the first circuit board 81 does not occupy the width of the curtain drive device 100 in the sixth direction, which is the width direction of the curtain track 200, thereby reducing the width of the curtain drive device 100 in the sixth direction and allowing the curtain drive device 100 to be installed in a narrower installation environment. Furthermore, the width of the drive device in the sixth direction is equal to the width of the connecting box 250 in the sixth direction.

[0137] In some exemplary embodiments, the operating element 20 is the pressing element 2; in other exemplary embodiments, the operating element 20 may also be a toggle element, which is toggled by the user to rotate the rotary locking element 1; in other embodiments, the operating element 20 may also be other movable structures that can be operated by the user to rotate the rotary locking element 1. In some exemplary embodiments, the operating part 201 may be the button 21, the lever of the toggle element, or other structures for receiving user operations. In an exemplary embodiment, the operating part 201 is the button 21.

[0138] like Figure 1As shown, the curtain drive device 100 is installed at the end of the curtain track 200. In actual installation environments, the end of the curtain track 200 is generally close to a vertical wall in the room. Therefore, the curtain drive device 100 is installed close to the vertical wall, which can cause the signal to be blocked by the wall. In this embodiment of the utility model, as... Figure 4 and Figure 23 As shown, the control module 84 includes an antenna 841 for external communication; wherein, the antenna 841 is disposed on the side of the first circuit board 81 near the operation part 201, and the antenna 841 is located on the side of the drive assembly 6 away from the wall, which is beneficial to improving signal strength.

[0139] Furthermore, such as Figure 23 As shown, the control module 84 is soldered to the first circuit board 81, and the antenna 841 is disposed at one end of the control module 84. A communication notch 813 is provided at the corner of the first circuit board 81, and the antenna 841 is located in the area where the communication notch 813 is located, in order to prevent the first circuit board 81 from blocking the signal.

[0140] In some embodiments, such as Figure 23 and Figure 24 As shown, the first circuit board 81 carries both high-voltage and low-voltage circuits. A power module 83 is also provided on the first circuit board 81, which converts high-voltage electricity into low-voltage electricity to provide power to the control module 84 and the drive assembly 6. In this embodiment, the high-voltage and low-voltage circuits are integrated on the first circuit board 81, allowing the circuit assembly 8 to carry the necessary electronic components on a single circuit board. This reduces the space occupied by the circuit assembly 8, shrinks the size of the curtain drive device 100, and simplifies the assembly process.

[0141] Furthermore, such as Figure 25 and Figure 5 As shown, a power cable 120 is soldered onto the first circuit board 81, and a cable outlet hole 46 is formed in the bottom wall of the housing, through which the power cable 120 passes; wherein, as... Figure 23 As shown, the power cord 120 includes a neutral wire and a live wire. The end of the first circuit board 81 near the tail of the motor 62 is provided with a first welding hole 814 and a second welding hole 815, which are used to weld the neutral wire and the live wire, respectively.

[0142] Furthermore, such as Figure 17As shown, the motor bracket 61 has two partition ribs 613 at one end near the tail of the motor 62. The first circuit board 81 has second insertion holes 816 at corresponding positions of each partition rib 613. The two partition ribs 613 are respectively inserted into the two second insertion holes 816, which improves the positioning accuracy between the first circuit board 81 and the motor bracket 61. Furthermore, the second insertion holes 816 extend axially from the end of the first circuit board 81 towards the motor 62.

[0143] Furthermore, the partition rib 613 has the function of blocking high voltage. Specifically, two partition ribs 613 are respectively inserted into two second insertion holes 816, such as... Figure 23 As shown, an electronic switch 85, a brightness sensor 86, and a light-emitting element 87 are provided on the left side of one of the second sockets 816, and a first welding hole 814 is provided on the right side. The first welding hole 814 is used to weld the neutral wire or the live wire, so that the left and right sides of the second socket 816 respectively carry low-voltage and high-voltage electricity. The partition rib 613 inserted into the second socket 816 can prevent the high-voltage and low-voltage electricity from affecting each other. Another second socket 816 is provided between the first welding hole 814 and the second welding hole 815. The partition rib 613 inserted into the second socket 816 can prevent the neutral wire and the live wire from short-circuiting.

[0144] In some embodiments, the motor bracket 61 is provided with a first wire-pressing portion, wherein the first wire-pressing portion may be a wire-pressing rib or other structure capable of pressing the wire. For example... Figure 5 As shown, the bottom wall of the housing is provided with a second wire clamping portion 44, wherein the second wire clamping portion 44 may be a wire clamping rib or other structure capable of clamping wires. When the drive assembly 6 is installed on the housing 4, the power cord 120 is clamped by the first wire clamping portion and the second wire clamping portion 44, so that the power cord 120 is stably connected to the first circuit board 81.

[0145] In some embodiments, such as Figure 12 and Figure 14 As shown, a button 45 is provided on the bottom wall of the housing. The circuit assembly 8 includes a first circuit board 81 and an electronic switch 85 disposed on the first circuit board 81. The electronic switch 85 is disposed at one end of the first circuit board 81 near the bottom wall of the housing, and the button 45 abuts against the electronic switch 85. The button 45 is positioned at the bottom of the housing 4 for easy user operation. Furthermore, the trigger rod of the electronic switch 85 protrudes downward from the first circuit board 81, and the button 45 is integrally formed on the bottom wall of the housing. The button 45 has an upwardly protruding trigger post for triggering the electronic switch 85, which abuts against the trigger rod of the electronic switch 85. When the circuit assembly 8 is installed into the housing 4, the assembly relationship between the electronic switch 85 and the button 45 is automatically established, eliminating the need for deliberate assembly of the button 45 and improving assembly efficiency.

[0146] Existing curtain motors have complex drive components with numerous parts. Moreover, the drive components are not assembled as independent units and must be assembled on the same line as the whole machine, which greatly reduces assembly efficiency.

[0147] In some embodiments, such as Figures 16-22 As shown, the drive assembly 6 includes a motor 62, a reducer 63, a clutch 64, a motor bracket 61, and a bracket cover 65 mounted on the end of the motor bracket 61. The motor 62 is fixedly connected to the motor bracket 61, and the bracket cover 65 is snapped into the motor bracket 61, forming a limiting cavity between the bracket cover 65 and the motor bracket 61. The reducer 63 and the clutch 64 are confined within the limiting cavity, so that the motor 62, reducer 63, clutch 64, motor bracket 61, and bracket cover 65 are connected as a whole. This allows the drive assembly 6 to form an independent assembly unit, enabling it to form an independent production line. The assembled unit can be easily transported to other production lines for complete machine assembly, ultimately improving overall assembly efficiency. Furthermore, the bracket cover 65 is snapped into the motor bracket 61, further improving assembly efficiency. The limiting cavity serves to limit the reducer 63 and clutch 64 inside, so that the drive assembly 6 forms an independent assembly unit. The limiting cavity can be an open cavity or a closed cavity. In one embodiment, the limiting cavity is an open cavity with a detection hole 656 at its top. The detection module 82 extends from the outside of the limiting cavity into the detection hole 656.

[0148] In some embodiments, such as Figure 4 As shown, the end cap 5 has multiple first through holes 581, such as... Figure 18 As shown, the bracket cover 65 has a first bracket hole 652 at the corresponding position of each of the first through holes 581, and the motor bracket 61 has a second bracket hole 614 at the corresponding position of each of the first bracket holes 652. The inner wall of the outer shell 4 is provided with a first connecting post 43 at the corresponding position of each of the second bracket holes 614, and the first connecting post 43 has a threaded connection hole. A connecting screw 582 is provided in the first through hole 581 of the end cover 5. The connecting screw 582 passes through the first through hole 581, the first bracket hole 652, and the second bracket hole 614 from the outside of the end cover 5 and connects to the threaded connection hole to fix the end cover 5, the bracket cover 65, and the motor bracket 61 to the outer shell 4. The connecting screw 582 can fix the bracket cover 65 to the motor bracket 61, fix the drive assembly 6 to the outer shell 4, and fix the end cover 5 to the outer shell 4, reducing the connection structure and simplifying the assembly steps.

[0149] Furthermore, such as Figure 18As shown, the first bracket hole 652 and the second bracket hole 614 form the second through hole 66.

[0150] Furthermore, such as Figure 18 As shown, the end face of the bracket cover 65 is shaped like a quadrilateral. The first bracket holes 652 are respectively provided at the four corners of the bracket cover 65. Arc-shaped ribs 653 are provided around each of the first bracket holes 652, and these ribs protrude from the end face of the bracket cover 65. The end cover 5 has four first through holes 581, distributed diagonally. The positions of the first through holes 581 correspond to the positions of the first bracket holes 652, as shown below. Figure 7 and Figure 11 As shown, a first protrusion 583 is provided on the back of the end cap 5 at the corresponding position of each of the first through holes 581, so that a countersunk hole is formed on the front of the end cap 5 within the first protrusion 583, and the countersunk hole can accommodate the nut of the connecting screw 582. Each of the first protrusions 583 is respectively embedded in the corresponding arc-shaped rib 653, so that the end cap 5 and the bracket cover 65 are positioned in the horizontal direction, and the two are locked in the vertical direction by the connecting screw 582.

[0151] Furthermore, such as Figure 25 As shown, the motor bracket 61 has a mating platform 615 with a shape adapted to the bracket cover 65 at one end near the bracket cover 65, and the bracket cover 65 is connected to the mating platform 615. The side of the mating platform 615 facing away from the bracket cover 65 has arc-shaped grooves 6151 at each of its four corners, and the second bracket hole 614 is provided within each arc-shaped groove 6151. The first connecting post 43 is embedded in the arc-shaped groove 6151 to achieve horizontal positioning of the motor bracket 61 and the outer casing 4, and the two are locked vertically by the connecting screw 582.

[0152] Furthermore, such as Figure 18 As shown, the side of the docking platform 615 facing the bracket cover 65 has a circular groove 6152 at the location of each of the second bracket holes 614. The bracket cover 65 has a second protrusion 654 that mates with the circular groove 6152. The second protrusion 654 is embedded in the circular groove 6152 to achieve horizontal positioning of the motor bracket 61 and the bracket cover 65. The two are locked vertically by the connecting screw 582. Ultimately, the end cover 5, the bracket cover 65, the motor bracket 61, and the outer shell 4 are mutually positioned in the horizontal direction.

[0153] In some embodiments, such as Figure 18As shown, the bracket cover 65 has snap-fit ​​arms 655 on both sides facing the motor bracket 61. Each snap-fit ​​arm 655 has a snap-fit ​​hole. The side of the motor bracket 61 has a second snap-fit ​​protrusion 6153 that fits into the snap-fit ​​hole. The bracket cover 65 is placed on the end of the motor bracket 61 near the clutch 64, and the second snap-fit ​​protrusion 6153 snaps into the snap-fit ​​hole. The bracket cover 65, by snapping into the motor bracket 61 with the snap-fit ​​arms 655 on both sides, can improve assembly speed.

[0154] In some embodiments, such as Figures 16-17 As shown, the first circuit board 81 is mounted on the side of the motor bracket 61. A detection hole 656 is formed on the side of the bracket cover 65. A photoelectric switch 821 is positioned directly opposite the detection hole 656 on the first circuit board 81, extending into the detection hole 656. When the first circuit board 81 is mounted on the motor bracket 61, the photoelectric switch 821 and the signal trigger ring 648 of the clutch housing 641 are in the correct positional relationship, improving assembly efficiency and making the structure more compact.

[0155] Furthermore, the first circuit board 81 is electrically connected to the motor 62, and a control module 84 is provided on the first circuit board 81. The control module 84 can control the rotation of the motor 62. The first circuit board 81 is fixedly connected to the motor bracket 61 so that the first circuit board 81 and the drive assembly 6 are integrated into one unit.

[0156] In some embodiments, such as Figure 21 As shown, the motor 62 is a brushed motor. A wire 622 is welded to the tail of the motor 62, and a connection terminal 623 is provided at the end of the wire 622. Figure 23 As shown, a connection socket 817 is provided at one end of the first circuit board 81 near the tail of the motor 62. The connection terminal 623 is plugged into the connection socket 817 to realize the electrical connection between the first circuit board 81 and the motor 62.

[0157] Furthermore, such as Figure 21 As shown, the motor 62 is provided with a welding arm 624 at its tail end. The welding arm 624 has a third welding hole. The wire 622 is inserted into the third welding hole and bends into a hook shape after passing through the third welding hole. Then the wire 622 is welded to the welding arm 624.

[0158] In some embodiments, such as Figure 20 and Figure 16As shown, the motor bracket 61 includes a cylindrical structure 616 open at both ends and a partition wall 6161 disposed inside the cylindrical structure 616. The partition wall 6161 divides the cylindrical structure 616 into two parts. The motor 62 and the reducer 63 are respectively disposed on both sides of the partition wall 6161. The motor 62 is fixedly connected to the partition wall 6161. The bracket cover 65 is disposed at the end of the cylindrical structure 616 near the reducer 63. The bracket cover 65 and the cylindrical structure 616 form the limiting cavity. The motor 62 has a plurality of first threaded holes on the side facing the partition wall 6161. The partition wall 6161 is connected to the first threaded holes by screws to fix the motor 62 to the partition wall 6161. Furthermore, a limiting boss 625 is provided on the side of the motor 62 facing the partition wall 6161. A limiting hole is provided at the center of the partition wall 6161. The limiting boss 625 is inserted into the limiting hole to achieve radial positioning of the motor 62.

[0159] Furthermore, such as Figure 16 and Figure 20 As shown, the reducer 63 is disposed inside the cylindrical structure 616. The reducer 63 is installed into the cylindrical structure 616 from the end of the cylindrical structure 616 away from the motor 62, and the end of the reducer 63 abuts against the partition wall 6161; further, as Figure 20 As shown, the reducer 63 has multiple positioning ribs 631 and multiple first engaging protrusions 632 on its sidewall. The cylindrical structure 616 has a positioning groove 6163 and a engaging interface 6164 on its inner wall. The positioning ribs 631 are inserted into the positioning grooves 6163, and the first engaging protrusions 632 are engaged with the engaging interfaces 6164. There are two first engaging protrusions 632, located on the upper and lower sides of the reducer 63, respectively. There are ten positioning ribs 631, arranged at intervals along the circumference of the reducer 63. Furthermore, the first engaging protrusions 632 have the same structure as the positioning ribs 631.

[0160] In some embodiments, such as Figure 18 and Figure 16 As shown, one end of the clutch 64 abuts against the bracket cover 65, and the other end abuts against the reducer 63, so that the axial direction of the clutch 64 is limited by the bracket cover 65 and the reducer 63.

[0161] Furthermore, such as Figure 18As shown, the clutch 64 includes a clutch housing 641, the clutch housing 641 is provided with a cam 642 for connecting the output shaft 7, the cam 642 protrudes from the end face of the clutch housing 641, and the bracket cover 65 is provided with a support hole 657 for the cam 642 to pass through, the support hole 657 radially limits the cam 642.

[0162] Furthermore, such as Figure 18 As shown, the clutch 64 includes a clutch housing 641, an iron ring 643, a sliding disc 644, two magnetic pillars 645, a clutch input shaft 646, and a leaf-shaped block 647 integrally formed on the end of the clutch input shaft 646. The clutch housing 641 is recessed inward to form a clutch 64 cavity, in which the magnetic pillars 645 and the leaf-shaped block 647 are accommodated. The iron ring 643 is embedded in the side of the sliding disc 644 opposite to the magnetic pillars 645. The magnetic pillars 645 are attracted by the iron ring 643 and adhere to the sliding disc 644. The clutch input shaft 646 passes through the sliding disc 644 and connects to the output end of the reducer. Figure 19 As shown, semi-circular recesses 6411 are respectively provided on the upper and lower sides of the cavity of the outer shell 4. Two magnetic pillars 645 are respectively located on both sides of the blade-shaped block 647. When the clutch input shaft 646 drives the blade-shaped block 647 to rotate, the blade-shaped block 647 pushes the magnetic pillars 645 to slide outward. The magnetic pillars 645 are engaged in the semi-circular recesses 6411, and the blade-shaped block 647 and the clutch housing 641 transmit power through the magnetic pillars 645 and the semi-circular recesses 6411. When the blade-shaped block 647 slightly reverses, the magnetic pillars 645 slide towards the middle under the attraction of the iron ring 643, so that the magnetic pillars 645 disengage from the semi-circular recesses 6411, and the power between the blade-shaped block 647 and the clutch housing 641 is cut off.

[0163] Furthermore, such as Figure 19 As shown, the blade-shaped block 647 has a central hole at its center, and the clutch housing 641 has a central shaft 6412 inside the clutch 64 cavity. The central shaft 6412 is inserted into the central hole, so that the blade-shaped block 647 and the clutch housing 641 are not easy to shake when rotating.

[0164] Existing curtain motors typically consist of a power board, a control board, and a detection board. The power board and control board are located at the rear of the drive assembly, while the detection board is located at the output end of the drive assembly. The detection board and control board are relatively far apart and connected via ribbon cables. The detection board and control board are installed from opposite ends of the housing, increasing assembly difficulty. Furthermore, the separate installation of the three circuit boards further complicates the assembly process.

[0165] To solve the above problems, in the embodiments of this utility model, such as Figure 17 and Figure 24As shown, the first circuit board 81 is provided with a detection module 82, which is located at the corresponding position of the output end of the drive component 6 and is used to detect the rotation parameters of the output end. The first circuit board 81 and the drive component 6 are arranged side by side, the axis of the drive component 6 is parallel to the first circuit board 81, and the detection module 82 is disposed on the first circuit board 81. In the fifth direction, the width of the first circuit board 81 at the position corresponding to the detection module 82 is greater than 3 times the width of the detection module 82, and the fifth direction is perpendicular to the axis of the drive component 6 and parallel to the first circuit board 81.

[0166] Compared to existing curtain motors that have three circuit boards, this embodiment of the invention places the detection module 82 and the control module 84 on the same circuit board, simplifying the circuit board installation structure and reducing assembly difficulty. Secondly, the first circuit board 81 is first fixedly connected to the drive assembly 6, and then installed into the housing 4 along with the drive assembly 6, avoiding the need for the circuit board and drive assembly 6 to be installed from both ends of the housing 4, thus improving assembly efficiency. Furthermore, compared to existing curtain motors that place the circuit board at the tail end of the drive assembly 6, this embodiment of the invention places the first circuit board 81 on the side of the drive assembly 6, not occupying space at the tail end of the drive assembly 6, thus shortening the time required for installation. The length of the curtain drive device 100 in the axial direction is increased. At the same time, the first circuit board 81 is arranged side by side with the drive assembly 6, so that the length of the first circuit board 81 can be increased as much as possible, so as to approach the length of the drive assembly 6, thereby increasing the area of ​​the first circuit board 81 and enabling the first circuit board 81 to integrate more electronic components. Finally, the width of the first circuit board 81 at the corresponding position of the detection module 82 is more than three times the width of the detection module 82, so that electronic components can be arranged on both sides of the detection module 82. The first circuit board 81 can integrate more electronic components, thereby reducing the number of circuit boards and reducing the space occupied by the circuit assembly 8.

[0167] Furthermore, such as Figure 23 and Figure 24 As shown, the first circuit board 81 includes a first side and a second side opposite to the first side. The control module 84 is disposed on the first side, and the detection module 82 is disposed on the second side. The control module 84 projects onto the first side to form a first projection pattern, and the detection module 82 projects onto the first side to form a second projection pattern. The first projection pattern and the second projection pattern have an overlapping area.

[0168] In some embodiments, such as Figure 23As shown, the first circuit board 81 carries both high-voltage and low-voltage circuits. A power module 83 is provided on the first circuit board 81, which converts high-voltage electricity into low-voltage electricity to provide power to the control module 84, the detection module 82, and the drive assembly 6. This embodiment of the invention places the detection module 82, the control module 84, and the power module 83 on the same circuit board, simplifying the circuit board installation structure, reducing assembly difficulty, and minimizing the space occupied by the circuit assembly 8.

[0169] In some embodiments, such as Figure 18 and Figure 17 As shown, the drive assembly 6 includes a clutch 64, which directly or indirectly outputs power. This direct or indirect power output can be understood as follows: the clutch 64 can connect to an output shaft 7, indirectly outputting power through the output shaft 7; the clutch 64 can also be equipped with a power output structure, such as a keyway, allowing the clutch 64 to directly connect to the connection box 250 of the curtain track 200, thus directly transmitting power from the clutch 64 to the connection box 250. Further, the clutch 64 includes a clutch housing 641, which has a cam 642 for connecting to the output shaft 7, and the clutch housing 641 outputs power through the output shaft 7. The bracket cover 65 has a support hole 657 for the cam 642 to pass through, which radially limits the cam 642. A spline groove is formed at the end of the cam 642, and a spline shaft is formed at the end of the output shaft 7, with the spline shaft inserted into the spline groove.

[0170] like Figure 18 and Figure 28 As shown, a signal trigger ring 648 is arranged around the clutch 64. The detection module 82 is located at one end of the first circuit board 81 near the signal trigger ring 648. The signal trigger ring 648 rotates with the clutch 64 and periodically triggers the detection module 82 during rotation. In some embodiments, the signal trigger ring 648 is arranged around the clutch housing 641 and rotates with the clutch housing 641. The signal trigger ring 648 may be a grating ring (…). Figure 18 The embodiment shown is used to periodically trigger the photoelectric switch 821; in other embodiments, the signal triggering ring 648 may also be a magnetic ring ( Figure 28 The embodiment shown is used to periodically trigger the Hall sensor; in other embodiments, the signal triggering ring 648 may also be other ring structures capable of periodically triggering the detection module 82.

[0171] like Figure 18 , Figure 16 and Figure 24 As shown, the signal triggering ring 648 includes a plurality of light-shielding plates 6481 arranged circumferentially at intervals; the detection module 82 is a photoelectric switch 821, which is provided with a detection slot, and at least one of the light-shielding plates 6481 is located in the detection slot. The light-shielding plate 6481 periodically blocks the light signal of the photoelectric switch 821 as the clutch 64 rotates. The opening of the detection slot faces radially toward the clutch 64, as shown... Figure 24 As shown, the extension direction of the detection groove is the fifth direction, and the extension direction of the detection groove is perpendicular to the axial direction of the clutch housing 641, so that each light shield 6481 can pass smoothly through the detection groove.

[0172] In some embodiments, the connection between the signal trigger ring 648 and the clutch housing 641 can be a snap-fit, sleeve-fit, fixed connection, or integral forming. In an exemplary embodiment, such as... Figure 19 As shown, the clutch 64 includes a clutch housing 641 for outputting power. A signal trigger ring 648 is integrally formed on the side of the clutch housing 641, and a light-shielding plate 6481 extends radially outward from the clutch housing 641. Furthermore, the clutch housing 641 is connected to an output shaft 7, through which power is output externally.

[0173] In some embodiments, such as Figures 16-18 As shown, the motor bracket 61 is equipped with a motor 62 and a reducer 63, and the bracket cover 65 is equipped with a clutch 64. The first circuit board 81 is mounted on the side of the motor bracket 61, and a detection hole 656 is opened on the side of the bracket cover 65. The photoelectric switch 821 extends into the detection hole 656.

[0174] In one embodiment, such as Figure 28 As shown, this embodiment is similar to Figures 16-18The difference in the illustrated embodiment is that the signal trigger ring 648 is changed from a grating ring to a magnetic ring, and the detection module 82 is changed from a photoelectric switch 821 to a Hall element 822. Specifically, the signal trigger ring 648 includes multiple first magnetic poles and multiple second magnetic poles; the first and second magnetic poles are arranged alternately in the circumferential direction, and their polarities are opposite; the detection module 82 is a Hall element 822, and the first and second magnetic poles periodically change the magnetic field at the location of the Hall element 822 in response to the rotation of the clutch 64. The signal trigger ring 648 is sleeved on the clutch 64; there are two Hall elements 822, and the arrangement direction of the two Hall elements 822 is perpendicular to the axial direction of the drive assembly 6. When the clutch housing 641 drives the signal trigger ring 648 to rotate, the first and second magnetic poles on the signal trigger ring 648 alternately approach the Hall element 822, causing the magnetic field around the Hall element 822 to change periodically. The Hall element 822 obtains the rotation status of the clutch housing 641 by detecting the change in the surrounding magnetic field. Furthermore, the signal trigger ring 648 is sleeved on the clutch housing 641 and rotates with the clutch housing 641.

[0175] Among them, Figure 28 In order to demonstrate the assembly relationship between the signal trigger ring 648 and the clutch housing 641, the motor cover 65 and other parts of the curtain drive device 100 are hidden and not shown.

[0176] This embodiment uses two Hall elements 822 to identify the forward and reverse rotation of the signal trigger ring 648. Furthermore, the inner side of the signal trigger ring 648 has four connecting protrusions evenly distributed circumferentially. The clutch housing 64 has connection ports adapted to these connecting protrusions. When the signal trigger ring 648 is fitted onto the clutch housing 641, the four connecting protrusions are respectively embedded in the connection ports, making the connection more stable.

[0177] Existing curtain motors typically have a power socket at the rear, with the power cord plugged into the socket. The power cord is connected to 220V AC power. If the power cord plug is not properly plugged in or comes loose, there is a safety hazard.

[0178] To solve the above problems, in the embodiments of this utility model, such as Figure 4 , Figure 5 and Figure 25As shown, the curtain drive device 100 includes a housing 4 and a drive assembly 6 and a circuit assembly 8 disposed inside the housing 4; wherein, the housing 4 includes a housing side wall and a housing bottom wall, the circuit assembly 8 is electrically connected to a power cord 120, the housing bottom wall has a wire outlet hole 46, the wire outlet hole 46 and the circuit assembly 8 are respectively disposed on both sides of the drive assembly 6, the power cord 120 extends from the circuit assembly 8 to the wire outlet hole 46, and passes through the wire outlet hole 46 to exit the housing 4.

[0179] In this embodiment of the invention, the power cord 120 is directly connected to the circuit assembly 8 and passes through the outlet hole 46 to exit the outer casing 4. This eliminates the need for the user to plug the cord into the power socket, preventing the plug from being improperly inserted or coming loose, thus eliminating safety hazards. Furthermore, the outlet hole 46 and the circuit assembly 8 are respectively located on opposite sides of the drive assembly 6, providing space for the power cord 120 to be wound inside the outer casing 4, preventing the power cord 120 from being pulled out of the outlet hole 46.

[0180] Furthermore, such as Figure 25 As shown, the motor bracket 61 has a winding portion 618 on the side opposite to the circuit assembly 8. The power cord 120 connected to the circuit assembly 8 passes through the winding portion 618 and exits the housing 4 through the outlet hole 46. The power cord 120 is bent at least 180° within the winding portion 618, thereby constraining the power cord 120 and preventing it from being pulled out of the outlet hole 46. The winding portion 618 is constructed to allow the power cord 120 to be bent, such as a winding groove or winding block.

[0181] In some embodiments, such as Figure 25 As shown, the power line 120 is soldered to one end of the circuit assembly 8 near the bottom wall of the housing. The power line 120 extends across the first end of the drive assembly 6 to the winding portion 618. The first end is the end of the drive assembly 6 near the bottom wall of the housing.

[0182] Furthermore, the power cord 120 horizontally crosses the first end of the drive assembly 6, then bends vertically upward into the winding portion 618, is bent at least 180° within the winding portion 618, bends vertically downward, and finally exits vertically downward through the outlet hole 46.

[0183] In some embodiments, such as Figure 25 As shown, the power cord 120 is bent into a curved section within the winding portion 618. The winding portion 618 includes a support member 6184 that supports the inner side of the curved section and a constraint member that abuts against the outer side of the curved section. The curved section is bent under the clamping action of the support member 6184 and the constraint member.

[0184] Furthermore, such as Figure 25 As shown, the constraint includes a first constraint wall 6181 located at the beginning of the curved section, a second constraint wall 6182 located in the middle of the curved section, and a third constraint wall 6183 located at the end of the curved section; wherein, the second constraint wall 6182 abuts against the upper part of the curved section and can prevent the power cord 120 from retracting into the outlet hole 46 under the action of external force.

[0185] Furthermore, the bending angle of the bent section is greater than 190° and less than 240° to enhance the constraint effect of the winding portion 618 on the power line 120, making the position of the power line 120 more stable. In one embodiment, the bending angle of the bent end is 212°.

[0186] In some embodiments, the support member 6184 and the constraint member are integrally formed on the motor bracket 61.

[0187] In some embodiments, such as Figure 25 As shown, a wire clamping member 67 is provided at one end of the winding part 618 near the outlet hole 46. The wire clamping member 67 clamps the power cord 120 to prevent the power cord 120 from being pulled out of the outlet hole 46 or retracting into the outlet hole 46 under external force. The wire clamping member 67 includes a wire clamping plate and connecting through holes provided at both ends of the wire clamping plate. A third connecting post is provided at the corresponding position of the connecting through hole on the motor bracket 61. The third connecting post has a second threaded hole. The connecting through hole is connected to the second threaded hole by a wire clamping screw. The power cord 120 is clamped between the wire clamping plate and the motor bracket 61.

[0188] In some embodiments, such as Figure 3 As shown, the curtain drive device 100 also includes an operating component 20 and a rotating latching component 1. The rotating latching component 1 is used to lock onto the curtain track 200. The operating component 20 can be operated to drive the rotating latching component 1 to switch between locked and unlocked states. The technical details of the operating component 20 and the rotating latching component 1 have been described in detail above and will not be repeated here. Figure 12 As shown, the operating component 20 includes an operating part 201 for receiving operating force. The circuit assembly 8 is disposed on the side of the drive assembly 6 near the operating part 201. The wire outlet hole 46 is disposed on the side of the bottom wall of the housing away from the operating part 201, such that when the curtain drive device 100 is installed on the curtain track 200, the wire outlet hole 46 is located on the side of the bottom wall of the housing away from the track base 210 (e.g., when the curtain drive device 100 is installed on the curtain track 200). Figure 1 As shown in the diagram, this allows the power cord 120 to be closer to the wall, facilitating cable routing. The technical details of the operating unit 201 have been described in detail above and will not be repeated here. Figure 12In the illustrated embodiment, the operation unit 201 is the button 21.

[0189] Furthermore, such as Figure 4 and Figure 23 As shown, the circuit assembly 8 includes a first circuit board 81, which is provided with an antenna 841 for external communication. The antenna 841 is disposed on the side of the first circuit board 81 near the operation part 201, so that when the curtain drive device 100 is installed on the curtain track 200, the antenna 841 is located on the side of the first circuit board 81 away from the wall, which is beneficial to improving the signal.

[0190] In existing technologies, the main body of a curtain motor does not have a brightness detection function. Generally, a brightness sensor is installed on the curtain track to detect the brightness outside the window. The brightness sensor is electrically connected to the curtain motor to control the opening and closing of the curtains based on the brightness outside the window. However, this design increases the difficulty of installation.

[0191] To solve the above problems, in the embodiments of this utility model, such as Figure 13 and Figure 14 As shown, the curtain drive device 100 includes a housing assembly 40, with the drive assembly 6 and the circuit assembly 8 disposed inside the housing assembly 40. The circuit assembly 8 includes a brightness sensor 86, and the housing assembly 40 has a light-transmitting portion 47 at a corresponding position to the brightness sensor 86, allowing ambient light to pass through the light-transmitting portion 47 and illuminate the brightness sensor 86. The curtain drive device 100 provided by this invention integrates a brightness sensing function, enabling it to sense the ambient brightness outside the housing 40, eliminating the need for an external brightness sensor and reducing installation difficulty.

[0192] Here, the ambient light can be understood as the ambient brightness outside the outer casing 4, not the brightness outside the window, such as... Figure 1 As shown, after the curtain track 200 is installed with the curtain, the curtain drive device 100 is located at the end of the curtain. Only a portion of the light from outside the window can reach the light-transmitting part 47. When the curtain is closed, although the brightness detected by the brightness sensor 86 is less than the brightness outside the window, the brightness detected by the brightness sensor 86 is positively correlated with the brightness outside the window. The user only needs to set the brightness threshold for controlling the opening and closing of the curtain appropriately to still achieve the function of controlling the opening and closing of the curtain according to the brightness change.

[0193] The housing assembly 40 includes the housing 4 and the end cap 5. The brightness sensor 86 can be a photoresistor or other electronic components capable of sensing brightness.

[0194] The light-transmitting portion 47 can be understood as a structure capable of transmitting light, such as a light-transmitting hole 471, a light guide post 472, etc. In one embodiment, such as Figure 14 and Figure 5 As shown, the light-transmitting portion 47 includes a light-transmitting hole 471 formed in the housing assembly 40 and a light guide post 472 embedded in the light-transmitting hole 471. The light guide post 472 is made of a transparent material.

[0195] Since the bottom wall and side wall of the outer casing 4 are integrally formed, it is inconvenient to install the light guide post 472 from the inside of the outer casing 4. Therefore, in some embodiments, the light guide post 472 is pressed into the light transmission hole 471 from the outside of the light transmission hole 471, and the light guide post 472 and the light transmission hole 471 are interference-fitted. Furthermore, vertical stripes are evenly arranged around the side of the light guide post 472. The vertical stripes are relatively narrow and numerous, which is used to enhance the connection stability between the light guide post 472 and the outer casing 4.

[0196] In some embodiments, such as Figure 12 As shown, the light-transmitting portion 47 is disposed on the bottom side of the housing assembly 40 near the operating part 201. Thus, when the curtain drive device 100 is installed on the curtain track 200, the light-transmitting portion 47 is located on the bottom side of the housing 40 near the curtain, allowing more light from outside the window to reach the light-transmitting portion 47. The bottom of the housing assembly 40 can be the bottom surface or the bottom of the side surface; in some embodiments, such as... Figure 12 As shown, the light-transmitting part 47 is disposed on the bottom surface of the housing assembly 40 near the operation part 201 to adapt to the top-to-bottom assembly method of the circuit assembly 8 and to adapt to the housing 4 with the side and bottom walls integrally formed. When the circuit assembly 8 is installed in the housing 4, the brightness sensing element 86 can be closer to the light-transmitting part 47, thereby improving the reliability of brightness detection.

[0197] Furthermore, such as Figure 12 As shown, the side of the bottom surface of the housing assembly 40 closest to the operation part 201 is designated as the first side, and the light-transmitting part 47 is located in the middle position of the first side, so that no matter whether the curtain drive device 100 is installed at the left or right end of the curtain track 200, the light-transmitting part 47 can be located in the middle position on the side closest to the track base 210, thereby improving the detection consistency of the brightness detection component.

[0198] In some embodiments, the light-transmitting portion 47 is disposed on the bottom surface of the housing assembly 40, including some positions that can be implemented on the bottom surface of the housing assembly 40, such as the side near the operating portion 201, the side away from the operating portion 201, the center position, or other positions.

[0199] In some embodiments, the brightness sensor 86 is disposed directly opposite the light-transmitting portion 47, such as... Figure 23As shown, the circuit assembly 8 also includes a light-emitting element 87, which is disposed beside the brightness sensor 86. Light emitted from the light-emitting element 87 shines outward through the light-transmitting portion 47. Here, "beside" can be understood as the light-emitting element 87 and the brightness sensor 86 being disposed on the same side of the same circuit board, and the distance between them is relatively close. In one embodiment, the distance between the light-emitting element 87 and the brightness sensor 86 is less than 2mm, so that the light emitted by the light-emitting element 87 can pass through the light-transmitting portion 47. The light-emitting element 87 can be an LED bead or other light-emitting electronic component.

[0200] In some embodiments, such as Figure 13 As shown, the housing assembly 40 includes a housing 4 and an end cap 5. The top of the housing 4 is open, and the end cap 5 is disposed on the top of the housing 4. The circuit assembly 8 includes a first circuit board 81, which is placed vertically. The brightness sensor 86 is disposed at the bottom of the first circuit board 81, and the light-transmitting part 47 is disposed at the bottom of the housing 4 to accommodate the first circuit board 81 being installed into the housing 4 from top to bottom, so that the brightness sensor 86 can be closer to the light-transmitting part 47.

[0201] In some embodiments, such as Figure 13 and Figure 14 As shown, the electronic switch 85 and the brightness sensor 86 are respectively disposed on both sides of the first circuit board 81. This allows the light-transmitting part 47 and the button 45 to be located at the center of the bottom of the housing 4 in the sixth direction. The sixth direction is the width direction of the curtain track 200, and the sixth direction is already shown in the diagram. Figure 12 The bid was successful.

[0202] In another embodiment, such as Figure 26 and Figure 27 As shown, this embodiment is similar to Figures 1-25 The difference in the illustrated embodiment is that the motor 62 is no longer a brushed motor, but a brushless motor, and the motor housing 629 of the brushless motor rotates synchronously with the output shaft 7. The motor 62 is disposed inside the cylindrical structure 616 of the motor bracket 61, and a first gap is provided between the side of the motor 62 and the side wall of the cylindrical structure 616, so that the brushless motor housing 629 has sufficient space to rotate.

[0203] Furthermore, such as Figure 27 As shown, the motor 62 is connected to a wire 622, and a through hole 6162 is provided on the side wall of the cylindrical structure 616. The wire 622 passes through the through hole 6162 and exits the cylindrical structure 616 to connect to the first circuit board 81. The through hole 6162 is located on the side of the cylindrical structure 616 opposite to the first circuit board 81. Wherein, as... Figure 26As shown, a motor circuit board 626 is provided at one end of the motor 62 near the motor output shaft 621. The motor circuit board 626 has five fourth welding holes 627. Five wires 622 are connected to each of the four fourth welding holes 627. A through-hole 6162 is located at the corresponding position of each of the four fourth welding holes 627. The wires 622 pass through the through-hole 6162 and exit the cylindrical structure 616, preventing the wires 622 from contacting the motor housing 4 inside the cylindrical structure 616 and causing the wires 622 to rotate with the motor housing 629.

[0204] Furthermore, such as Figure 27 As shown, the wire 622 passes through the through hole 6162 and extends towards the tail end of the motor 62. It then winds around the outside of the motor bracket 61 to the first circuit board 81, and finally connects to the first circuit board 81 through a terminal block. Furthermore, the size of the through hole 6162 is sufficient to allow the terminal block to pass through. After the terminal block passes through the through hole 6162, a retaining plate 617 is placed on the through hole 6162 to reduce the opening size of the through hole 6162 and decrease the amount of movement of the wire 622 within the through hole 6162.

[0205] In another embodiment, such as Figure 29 As shown, this embodiment is similar to Figures 1-25 The difference in the illustrated embodiment is that the reset member 3 is no longer provided on the back of the end cover 5. Instead, the rotating latch 1 and the pressing member 2 are reset by pressing the reset button 911. Specifically, the outer casing 4 includes a first side and a second side opposite to the first side, and the button 21 protrudes from the first side; the curtain drive device 100 also includes a second pressing member 91, the second pressing member 91 sliding in the same direction as the pressing member 2, the pressing member 2 and the second pressing member 91 being able to push and slide against each other, the second pressing member 91 including a reset button 911, the reset button 911 being disposed on the second side; when the button 21 is pressed, the pressing member 2 slides toward the second direction, pushing the second pressing member 91 to slide toward the second direction, the reset button 911 protruding from the second side under the action of the second pressing member 91, the pressing member 2 driving the rotating latch 1 to rotate; when the reset button 911 is pressed, the second pressing member 91 slides toward the fourth direction, pushing the pressing member 2 to slide toward the second direction, the second pressing member 91 driving the rotating latch 1 to reset; the fourth direction is opposite to the second direction.

[0206] Figure 29 The left image shows the reset button 911 being pressed, with the rotating latch 1 in the locked state. Figure 29 The right figure shows the button 21 in the pressed state, and the rotating latch 1 in the unlocked state.

[0207] Furthermore, such as Figure 29 As shown, the end cap 5 has a third hook 584 and a fourth hook 585 respectively provided on both sides of the second pressing member 91 on its back side. The openings of the third hook 584 and the fourth hook 585 face each other, and the two sides of the second pressing member 91 slide inside the third hook 584 and the fourth hook 585 respectively, thereby realizing the sliding connection between the second pressing member 91 and the end cap 5. The second pressing member 91 extends a second driving arm 913 in the fourth direction from the position corresponding to the protrusion 111 of the rotating latch 1. The end of the second driving arm 913 abuts against the side of the protrusion 111 that is opposite to the pressing member 2.

[0208] Furthermore, such as Figure 29 As shown, the side of the drive arm 221 of the pressing member 2 is provided with a first limiting groove 23, the side of the second drive arm 913 of the second pressing member 91 is provided with a second limiting groove 914, and a limiting post 586 protrudes from the back of the end cap 5; Figure 29 As shown in the left figure, when the reset button 911 is pressed to its limit position, the side of the limiting post 586 engages with the second limiting groove 914, thus restricting the position of the second pressing member 91. The second pressing member 91 abuts against the protruding tooth 111, and the protruding tooth 111 abuts against the pressing member 2, thereby restricting the position of the protruding tooth 111 as well; Figure 29 As shown in the right figure, when the button 21 is pressed to its limit position, the side of the limiting post 586 engages with the first limiting groove, thus restricting the position of the pressing member 2. The pressing member 2 abuts against the protruding tooth 111, and the protruding tooth 111 abuts against the second pressing member 91. The second pressing member 91 is abutted and limited by the inner wall of the outer shell 4, thereby restricting the position of the protruding tooth 111. By restricting the position of the protruding tooth 111, the rotation of the rotating latch 1 can be restricted, preventing the rotating latch 1 from automatically switching between locked and unlocked states during use, thereby preventing the curtain drive device 100 from accidentally falling off.

[0209] In yet another embodiment, such as Figure 30 As shown, this embodiment is similar to Figures 1-25 The difference in the illustrated embodiment is that the first transmission part 22 does not directly abut against the second transmission part 11, but is connected to the second transmission part 11 through a connecting rod 92; the transmission structure includes a first transmission part 22 disposed on the pressing member 2, a second transmission part 11 disposed on the rotating locking member 1, and a connecting rod 92 connecting the first transmission part 22 and the second transmission part 11; one end of the connecting rod 92 is rotatably connected to the first transmission part 22, and the other end is rotatably connected to the second transmission part 11, and power is transmitted between the first transmission part 22 and the second transmission part 11 through the connecting rod 92.

[0210] Figure 30 The left image shows button 21 in the unpressed state, with the rotary latch 1 in the locked state. Figure 30 The right figure shows the button 21 in the pressed state, and the rotating latch 1 in the unlocked state.

[0211] Furthermore, such as Figure 30 As shown, the first transmission part 22 includes a fourth connecting post 223, which has a threaded connection hole. One end of the connecting rod 92 has a first connection hole, and the other end has a second connection hole. The first connection hole is fitted onto the fourth connecting post 223, and a fourth screw (not shown) is connected to the fourth connecting post 223. The fourth screw limits the first connection hole to the fourth connecting post 223, allowing the first connection hole to rotate around the fourth connecting post 223. A rivet 93 is provided in the second connection hole, and the protruding tooth 111 has a third connection hole. The second connection hole is riveted to the third connection hole by the rivet 93, and the rivet 93 can rotate within the third connection hole. Both the connecting rod 92 and the rotating locking component 1 are made of sheet metal.

[0212] In yet another embodiment, such as Figure 31 As shown, this embodiment is similar to Figures 1-25 The difference in the illustrated embodiment is that the transmission structure includes a second connecting post 222 disposed on the pressing member 2 and a track circular hole 112 disposed on the rotating locking member 1; the second connecting post 222 is located at the end of the pressing member 2 away from the button 21, the second connecting post 222 is perpendicular to the sliding direction of the pressing member 2, the second connecting post 222 is inserted into the track circular hole 112, and the pressing member 2 and the rotating locking member 1 transmit power through the second connecting post 222; when the pressing member 2 slides, the second connecting post 222 drives the rotating locking member 1 to rotate, and the second connecting post 222 slides in the track circular hole 112.

[0213] Figure 31 The left image shows button 21 in the unpressed state, with the rotary latch 1 in the locked state. Figure 31 The right figure shows the button 21 in the pressed state, and the rotating latch 1 in the unlocked state.

[0214] Furthermore, such as Figure 31 As shown, the second connecting post 222 is disposed at the end of the drive arm 221 of the pressing member 2, the runway circular hole 112 is disposed on the protruding tooth 111, and there is a step between the protruding tooth 111 and the collar 12, so that the protruding tooth 111 is raised to a certain height away from the end cover 5, so that the drive arm 221 can be accommodated between the protruding tooth 111 and the end cover 5, and the second connecting post 222 is prevented from dislodging from the runway circular hole 112.

[0215] In yet another embodiment, such as Figure 32 As shown, this embodiment is similar to Figures 1-25 The difference in the illustrated embodiment is that the pressing member 2 is no longer slidably connected to the end cover 5, but is rotatably connected to the end cover 5. The pressing member 2 is provided with a pivoting part 24, which is pivotally connected to the end cover 5 of the main body 110. The first transmission part 22 and the pivoting part 24 are respectively provided on both sides of the pressing member 2. When the button 21 is pressed, the pressing member 2 rotates based on the pivoting part 24, and the pressing member 2 drives the first transmission part 22 to move. The first transmission part 22 drives the second transmission part 11.

[0216] Figure 32 The left image shows button 21 in the unpressed state, with the rotary latch 1 in the locked state. Figure 32 The right figure shows the button 21 in the pressed state, and the rotating latch 1 in the unlocked state.

[0217] Furthermore, such as Figure 32 As shown, the pivoting part 24 includes a pivoting hole. A fifth connecting post 587 is provided on the back of the end cover 5 at a position corresponding to the pivoting hole. The pivoting hole is fitted onto the fifth connecting post 587 to achieve a rotatable connection between the pressing member 2 and the end cover 5. The fifth connecting post 587 has a threaded connection hole, and a fifth screw (not shown in the figure) is connected to the fifth connecting post 587. The fifth screw limits the pivoting hole to the fifth connecting post 587.

[0218] Furthermore, such as Figure 32 As shown, a connecting rod 92 connects the first transmission part 22 and the second transmission part 11, transmitting power through the connecting rod 92. One end of the connecting rod 92 is rotatably connected to the first connecting part, and the other end is rotatably connected to the second connecting part. The first transmission part 22 is constructed as a sixth connecting post 224, which has a threaded connection hole. One end of the connecting rod 92 has a first connection hole, and the other end has a second connection hole. The first connection hole is fitted onto the sixth connecting post 224, and a sixth screw (not shown) is connected to the sixth connecting post 224. The sixth screw limits the first connection hole to the sixth connecting post 224, allowing the first connection hole to rotate around the sixth connecting post 224. The protruding tooth 111 has a third connection hole, and a rivet 93 is installed in the second connection hole. The second connection hole is riveted to the third connection hole by the rivet 93, and the rivet 93 can rotate within the third connection hole. Both the connecting rod 92 and the rotating locking component 1 are made of sheet metal.

[0219] Furthermore, such as Figure 32As shown, the side of the pressing member 2 away from the pivot portion 24 is designated as a first sliding edge 25. A fifth hook 588 is provided on the back of the end cap 5 at a position corresponding to the first sliding edge 25, with the opening of the fifth hook 588 facing the pivot portion 24. The fifth hook 588 engages with the first sliding edge 25. When the pressing member 2 rotates based on the pivot portion 24, the first sliding edge 25 slides inside the fifth hook 588. The fifth hook 588 restricts the movement of the first sliding edge 25 towards the drive assembly 6.

[0220] Furthermore, such as Figure 32 As shown, when assembling the pressing part 2, the following should be noted: First, insert the first sliding edge 25 into the fifth hook 588, then fit the pivot hole onto the fifth connecting post 587; then install the rotating buckle 1 and the connecting rod 92 onto the end cover 5, and finally fit the first connecting hole of the connecting rod 92 onto the sixth connecting post 224, and tighten the fifth screw and the sixth screw.

[0221] Existing curtain motors typically consist of a power board, a control board, and a detection board. The power board and control board are located at the rear of the drive assembly, while the detection board is located at the output end of the drive assembly. The detection board and control board are relatively far apart and connected via ribbon cables. The detection board and control board are installed from opposite ends of the housing, increasing assembly difficulty. Furthermore, the separate installation of the three circuit boards further complicates the assembly process.

[0222] To solve this technical problem, according to the second aspect of this utility model, as follows: Figures 1-32 As shown, a curtain driving device 100 is provided, wherein the structure of the curtain driving device 100 is the same as that of the curtain driving device 100 provided in the first aspect of this utility model, and the technical details of its structure can be referred to the above description. Figure 17 and Figure 24 As shown, the curtain driving device 100 includes: a driving component 6; a first circuit board 81 electrically connected to the driving component 6, the first circuit board 81 being provided with a control module 84, the control module 84 being used to control the rotation of the driving component 6; and a detection module 82 located at a position corresponding to the output end of the driving component 6, used to detect the rotation parameters of the output end; wherein, the first circuit board 81 and the driving component 6 are arranged side by side, the axial direction of the driving component 6 is parallel to the first circuit board 81, and the detection module 82 is disposed on the first circuit board 81; in a fifth direction, the width of the first circuit board 81 at the position corresponding to the detection module 82 is greater than 3 times the width of the detection module 82, and the fifth direction is perpendicular to the axial direction of the driving component 6 and parallel to the first circuit board 81.

[0223] Compared to existing curtain motors that have three circuit boards, this embodiment of the invention places the detection module 82 and the control module 84 on the same circuit board, simplifying the circuit board installation structure and reducing assembly difficulty. Secondly, the first circuit board 81 is first fixedly connected to the drive assembly 6, and then installed into the housing 4 along with the drive assembly 6, avoiding the need for the circuit board and drive assembly 6 to be installed from both ends of the housing 4, thus improving assembly efficiency. Furthermore, compared to existing curtain motors that place the circuit board at the tail end of the drive assembly 6, this embodiment of the invention places the first circuit board 81 on the side of the drive assembly 6, not occupying space at the tail end of the drive assembly 6, thus shortening the time required for installation. The length of the curtain drive device 100 in the axial direction is increased. At the same time, the first circuit board 81 is arranged side by side with the drive assembly 6, so that the length of the first circuit board 81 can be increased as much as possible, so as to approach the length of the drive assembly 6, thereby increasing the area of ​​the first circuit board 81 and enabling the first circuit board 81 to integrate more electronic components. Finally, the width of the first circuit board 81 at the corresponding position of the detection module 82 is more than three times the width of the detection module 82, so that electronic components can be arranged on both sides of the detection module 82. The first circuit board 81 can integrate more electronic components, thereby reducing the number of circuit boards and reducing the space occupied by the circuit assembly 8.

[0224] Other technical details of the driving component 6, the first circuit board 81 and the detection module 82 have been described in detail in the first aspect of the above utility model. Please refer to the above description.

[0225] Furthermore, such as Figure 23 and Figure 24 As shown, the first circuit board 81 includes a first side and a second side opposite to the first side. The control module 84 is disposed on the first side, and the detection module 82 is disposed on the second side. The control module 84 projects onto the first side to form a first projection pattern, and the detection module 82 projects onto the first side to form a second projection pattern. The first projection pattern and the second projection pattern have an overlapping area, which makes the electronic components more compact, so as to integrate the electronic components on a single circuit board.

[0226] In some embodiments, such as Figure 23 As shown, the first circuit board 81 carries both high-voltage and low-voltage circuits. A power module 83 is provided on the first circuit board 81, which converts high-voltage electricity into low-voltage electricity to provide power to the control module 84, the detection module 82, and the drive assembly 6. This embodiment of the invention places the detection module 82, the control module 84, and the power module 83 on the same circuit board, simplifying the circuit board installation structure, reducing assembly difficulty, and minimizing the space occupied by the circuit assembly 8.

[0227] Furthermore, such as Figure 27As shown, the drive assembly 6 includes a motor bracket 61 and a motor 62 disposed inside the motor bracket 61. The motor 62 is a brushless motor. The motor 62 is connected to a wire 622. The motor bracket 61 has a through hole 6162. The wire 622 passes through the through hole 6162 and exits the motor bracket 61. The through hole 6162 is located on the side of the motor bracket 61 opposite to the first circuit board 81.

[0228] Other technical details of the motor bracket 61 and the through hole 6162 have been described in detail in the first aspect of this utility model above. Please refer to the above description.

[0229] In some embodiments, the drive assembly 6 includes a clutch 64 that directly or indirectly outputs power to the outside; the clutch 64 is surrounded by a signal trigger ring 648, and the detection module 82 is disposed at one end of the first circuit board 81 near the signal trigger ring 648. The signal trigger ring 648 rotates with the clutch housing 641 and periodically triggers the detection module 82 during rotation.

[0230] Furthermore, Figure 18 , Figure 16 and Figure 24 As shown, the signal triggering ring 648 includes a plurality of light-shielding plates 6481 arranged at intervals along the circumference; the detection module 82 is a photoelectric switch 821, the photoelectric switch 821 is provided with a detection slot, at least one of the light-shielding plates 6481 is located in the detection slot, and the light-shielding plate 6481 periodically blocks the light signal of the photoelectric switch 821 as the clutch 64 rotates.

[0231] Furthermore, such as Figure 19 As shown, the clutch 64 includes a clutch housing 641 for outputting power. The signal trigger ring 648 is integrally formed on the side of the clutch housing 641. The light shield 6481 extends outward from the clutch housing 641 in a radial direction, so that the detection module 82 can be set on the side of the clutch housing 641 instead of at the end of the clutch housing 641, so that the detection module 82 can be integrated into the first circuit board 81.

[0232] Other technical details of the clutch 64 and the signal trigger ring 648 have been described in detail in the first aspect of this utility model above. Please refer to the above description.

[0233] In some embodiments, such as Figures 16-18As shown, the drive assembly 6 includes a motor bracket 61 and a bracket cover 65 installed at the end of the motor bracket 61. The motor bracket 61 houses a motor 62 and a reducer 63, and the bracket cover 65 houses a clutch 64. The first circuit board 81 is installed on the side of the motor bracket 61, and a detection hole 656 is opened on the side of the bracket cover 65. The photoelectric switch 821 extends into the detection hole 656.

[0234] In some embodiments, such as Figure 28 As shown, the signal trigger ring 648 includes multiple first magnetic poles and multiple second magnetic poles; the first and second magnetic poles are arranged alternately in the circumferential direction, and their polarities are opposite; the detection module 82 is a Hall element 822, and the first and second magnetic poles periodically change the magnetic field at the location of the Hall element 822 in response to the rotation of the clutch 64. Further, the signal trigger ring 648 is sleeved on the clutch 64; the number of Hall elements 822 is two, and the arrangement direction of the two Hall elements 822 is perpendicular to the axial direction of the drive assembly 6.

[0235] Other technical details of the Hall element 822 and the signal trigger ring 648 have been described in detail in the first aspect of the present invention above. Please refer to the above description.

[0236] It should also be noted that the above embodiments can be combined with each other. For the same or similar concepts or processes, they may not be described again in some embodiments. That is, the technical solutions disclosed in the later (in the order of the text) embodiments should include the technical solutions described in this embodiment and the technical solutions described in all embodiments before this embodiment.

[0237] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A curtain driving device, characterized in that, include: Driver components; A first circuit board is electrically connected to the drive assembly. The first circuit board is provided with a control module, which is used to control the rotation of the drive assembly. The detection module is located at the corresponding position of the output end of the drive component and is used to detect the rotation parameters of the output end; The first circuit board and the driving component are arranged side by side, the axis of the driving component is parallel to the first circuit board, and the detection module is disposed on the first circuit board; in the fifth direction, the width of the first circuit board at the position corresponding to the detection module is greater than 3 times the width of the detection module, and the fifth direction is perpendicular to the axis of the driving component and parallel to the first circuit board.

2. The curtain driving device according to claim 1, characterized in that, The first circuit board includes a first side and a second side opposite to the first side, the control module is disposed on the first side, and the detection module is disposed on the second side; The control module projects onto the first surface to form a first projected image, and the detection module projects onto the first surface to form a second projected image, wherein the first projected image and the second projected image have an overlapping area.

3. The curtain driving device according to claim 1, characterized in that, The first circuit board carries high-voltage circuits and low-voltage circuits. The first circuit board is equipped with a power module, which is used to convert high voltage into low voltage, thereby providing power to the control module, the detection module and the drive component.

4. The curtain driving device according to claim 3, characterized in that, The drive assembly includes a motor bracket and a motor disposed inside the motor bracket. The motor is a brushless motor and is connected to a wire. The motor bracket has a through hole through which the wire passes out of the motor bracket. The through hole is located on the side of the motor bracket opposite to the first circuit board.

5. The curtain driving device according to claim 1, characterized in that, The drive assembly includes a clutch that directly or indirectly outputs power to the outside. The clutch is surrounded by a signal trigger ring, and the detection module is located at one end of the first circuit board near the signal trigger ring. The signal trigger ring rotates with the clutch housing and periodically triggers the detection module during rotation.

6. The curtain driving device according to claim 5, characterized in that, The signal triggering ring includes a plurality of light-shielding plates arranged at intervals along the circumference; The detection module is a photoelectric switch, which is provided with a detection slot. At least one of the light-shielding plates is located in the detection slot. The light-shielding plate periodically blocks the light signal of the photoelectric switch as the clutch rotates.

7. The curtain driving device according to claim 6, characterized in that, The clutch includes a clutch housing for outputting power, a signal trigger ring integrally formed on the side of the clutch housing, and a light shield extending outward from the clutch housing in a radial direction.

8. The curtain driving device according to claim 6, characterized in that, The drive assembly includes a motor bracket and a bracket cover mounted on the end of the motor bracket. The motor bracket contains a motor and a reducer, and the bracket cover contains the clutch. The first circuit board is mounted on the side of the motor bracket, and a detection hole is opened on the side of the bracket cover, into which the photoelectric switch extends.

9. The curtain driving device according to claim 5, characterized in that, The signal triggering ring includes multiple first magnetic poles and multiple second magnetic poles; The first and second magnetic poles are arranged alternately along the circumference, and their polarities are opposite. The detection module is a Hall element, and the first and second magnetic poles periodically change the magnetic field at the location of the Hall element in response to the rotation of the clutch.

10. The curtain driving device according to claim 9, characterized in that, The signal trigger ring is sleeved on the clutch; The number of Hall elements is two, and the arrangement direction of the two Hall elements is perpendicular to the axis of the drive assembly.

Images