Driving device

Abstract

The utility model provides a driving device. The driving device comprises a shell, the first end cover is fixedly connected to the end part of the shell; the driving assembly is arranged in the shell and fixedly connected to the first end cover, the driving assembly is connected with an output shaft, and the output shaft penetrates through the first end cover to output power outwards; the rotation detection module is used for detecting rotation parameters of the output end of the driving assembly; the rotation detection module comprises a detection circuit board, the detection circuit board is positioned by the driving assembly to limit the movement freedom degree and the rotation freedom degree of the detection circuit board on the plane where the first surface is located, and the first surface is the surface, facing the first end cover, of the detection circuit board; the detection circuit board is clamped and fixed by the driving assembly and the first end cover. According to the driving device provided by the utility model, the position precision between the detection circuit board and the driving assembly is higher, and the rotation detection module is not easy to damage.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric drive technical field especially relates to a drive device. BACKGROUND

[0002] With the development of smart home, daily necessities are gradually becoming intelligent, gradually liberating people's hands and improving people's life quality. Electric curtain is a kind of curtain form driven by motor, which drives the curtain opening and closing through curtain motor, without manually opening and closing the curtain, convenient and fast. Electric curtain can also automatically control opening and closing according to time change, and can be linked with other intelligent devices to realize intelligent scene.

[0003] The existing curtain motor is limited by the positioning structure and the limiting structure of the rotation detection module, which has defects, resulting in that the rotation detection module is easily damaged in the process of assembly and disassembly, and the position accuracy between the rotation detection module and the driving assembly is not high. UTILITY MODEL CONTENTS

[0004] The utility model provides a kind of drive device, wherein detection circuit board is directly positioned by driving assembly, improve the position accuracy between detection circuit board and driving assembly, it is favorable to improve the detection accuracy of rotation detection module.

[0005] Another purpose of the utility model is to provide a kind of drive device, wherein compared with traditional clamping fixation, the detection circuit board provided by the utility model is clamped and fixed, avoids the action of pressing and clamping during assembly, can prevent detection module from being pressed and damaged during assembly;And compared with clamping fixation, clamping fixation makes the detection module disassembly more convenient, and the detection module will not be damaged during disassembly.

[0006] Another purpose of the utility model is to provide a kind of drive device, wherein detection circuit board is fixed by the way of positioning and clamping cooperation, which guarantees positioning accuracy and improves assembly convenience, assembly worker need not the operation of fixing detection circuit board when assembling, only need to connect driving assembly with first end cover, detection circuit board can be clamped and fixed, simplify assembly step.

[0007] Another purpose of the utility model is to provide a kind of drive device, wherein first connecting part is not only used to connect first end cover, but also cooperates with positioning hole, positions detection circuit board, so that driving assembly need not additional positioning structure to position detection circuit board, structure is simplified;And positioning structure and connecting structure are same structure, guarantee that detection circuit board is clamped stably and reliably.

[0008] The utility model discloses another purpose lies in providing a kind of driving device, wherein through the positioning detection circuit board of two connecting columns can not only improve positioning accuracy, and connecting column can be conveniently inserted in positioning hole, to facilitate assembly detection circuit board.

[0009] The utility model discloses another purpose lies in providing a kind of driving device, wherein annular positioning wall is not only used to position between first end cover and connecting column, and also be used to abut detection circuit board, realize detection circuit board clamping and fixing, so that structure is more simplified, assembly step is simplified.

[0010] The utility model discloses another purpose lies in providing a kind of driving device, wherein annular positioning wall abuts detection circuit board, so that abutment part is close to connecting column, first end cover is supported by connecting column, avoid because connecting screw is too big or too small and lead to abutment force change too much, guarantee that abutment force meets the requirement.

[0011] The utility model discloses another purpose lies in providing a kind of driving device, wherein connecting column can not only position detection circuit board, but also position first end cover, so that the positional relationship between detection circuit board and first end cover is accurate.

[0012] The utility model discloses another purpose lies in providing a kind of driving device, wherein annular positioning wall is sleeved in connecting column, so that annular positioning wall plays lateral supporting effect to connecting column, can enhance the connecting strength of connecting column and first end cover, avoid connecting part fracture.

[0013] The utility model discloses another purpose lies in providing a kind of driving device, wherein second board is protruded from the outer side of driving assembly, so that flexible connecting piece has enough space to connect second board, and flexible connecting piece will not be blocked by driving assembly.

[0014] The utility model discloses another purpose lies in providing a kind of driving device, wherein positioning hole is arranged at both ends of first plate, so that positioning accuracy can be improved.

[0015] The utility model discloses another purpose lies in providing a kind of driving device, wherein abutment wall and annular positioning wall abut detection circuit board together, so that detection circuit board is clamped more stably.

[0016] The utility model discloses another purpose lies in providing a kind of driving device, wherein clutch housing is provided with magnetic sensing window, and Hall inductive piece is embedded in magnetic sensing window, so that Hall sensor is closer to permanent magnet, to improve the inductive magnetic field accuracy of Hall inductive piece.

[0017] The utility model discloses a drive device, wherein the drive assembly is assembled into one end of the shell with the first end cover, the first circuit board and the second limiting piece are assembled into the other end of the shell with the second end cover, so that the assembly has the following beneficial effects: 1, improve the assembly efficiency; 2, convenient to maintain and replace, the both ends of the shell 1 can be respectively disassembled and maintained, without disassembling the whole equipment; 3, the first circuit board and the clutch are respectively located at the both ends of the shell, avoiding the electromagnetic interference of the permanent magnet on the clutch shell to the first circuit board.

[0018] The utility model discloses a drive device, wherein the flexible connecting piece compensates the spacing change between the detection circuit board and the first circuit board in the assembly process through deformation, ensuring the stable connection of the two.

[0019] The utility model discloses a drive device, wherein the flexible connecting piece can be twisted and bent, making the position design of the detection circuit board and the first circuit board more flexible.

[0020] The utility model discloses a drive device, wherein the flexible buffer ring provides lateral buffering for the columnar motor, avoiding the damage of the columnar motor or the shell caused by the impact of the columnar motor on the shell side wall.

[0021] The utility model discloses a drive device, wherein the flexible buffer ring reduces the shaking amplitude of the drive assembly to a certain extent, reducing the risk of fracture of the part connecting the drive assembly and the first end cover.

[0022] In order to realize at least one of the above purposes, the utility model provides a drive device, which comprises a shell, a first end cover and a drive assembly, the first end cover is fixedly connected to the end of the shell, the drive assembly is arranged in the shell and is fixedly connected to the first end cover, the drive assembly is connected with an output shaft, the output shaft passes through the first end cover and outputs power to the outside, wherein, a rotation detection module is further included, which is used for detecting the rotation parameters of the output end of the drive assembly, the rotation detection module comprises a detection circuit board, the detection circuit board is positioned by the drive assembly to limit the movement degree of freedom and the rotation degree of freedom of the detection circuit board in the plane of the first surface, the first surface is the surface of the detection circuit board facing the first end cover, and the detection circuit board is clamped and fixed by the drive assembly and the first end cover.

[0023] Further, the driving assembly is provided with a first connecting portion protruding from a first end surface of the driving assembly, the first end surface being a surface of the driving assembly facing the first end cover; the first connecting portion is a threaded connecting portion, and the first end cover is fixedly connected to the first connecting portion by a connecting screw; the detection circuit board is provided with a positioning hole, and the first connecting portion is inserted into the positioning hole to position the detection circuit board.

[0024] Further, the first connecting portion includes a plurality of connecting columns, and the first end cover is fixedly connected to each connecting column by a connecting screw; the number of the positioning holes is two, and each positioning hole is positioned by a connecting column to limit the movement and rotation degrees of the detection circuit board in the plane of the first surface.

[0025] In some embodiments, the first connecting portion includes a plurality of connecting columns, and the first end cover is provided with a ring-shaped positioning wall at a position corresponding to each connecting column, the ring-shaped positioning wall is sleeved on the corresponding connecting column to position the first end cover and the driving assembly; the first end cover is fixedly connected to each connecting column by a connecting screw; the end of the ring-shaped positioning wall abuts against the detection circuit board, and the detection circuit board is clamped and fixed by the ring-shaped positioning wall and the driving assembly.

[0026] In some embodiments, the detection circuit board includes a first plate and a second plate, the first plate is used to be clamped and fixed by the driving assembly and the first end cover; the second plate is integrally formed on the first plate and protrudes from the outer side of the driving assembly; the driving device further includes a first circuit board for electrically connecting the driving assembly to control the driving assembly; wherein the first circuit board is connected to the second plate by a flexible connecting member to receive the detection signal transmitted by the detection circuit board.

[0027] Further, the first end surface is configured as a ring-shaped surface, the first plate includes a semi-ring-shaped plate to match the first end surface; the number of the positioning holes is two, and each positioning hole is located at the two ends of the first plate; the first end cover is provided with an abutting wall facing the detection circuit board, the abutting wall abuts against the detection circuit board, and the detection circuit board is clamped and fixed by the abutting wall and the first end surface.

[0028] In some embodiments, the driving assembly comprises an output disc connected with the output shaft, an outer clutch shell covering the outside of the output disc, and the first connecting part arranged in the outer clutch shell; wherein the output disc is uniformly arranged with a plurality of permanent magnets in the circumferential direction, the outer clutch shell is provided with a magnetic sensing window, and the magnetic sensing window exposes a part of the permanent magnets; the rotation detection module comprises two Hall sensors, and the two Hall sensors are arranged at positions corresponding to the magnetic sensing window to convert the magnetic field parameters into detection signals.

[0029] Further, the first end face is arranged as a face of the outer clutch shell facing the first end cover; the Hall sensor is arranged on a second surface of the detection circuit board facing away from the first surface, and is embedded in the magnetic sensing window, so that the first end face is attached to the detection circuit board, and the detection circuit board is clamped and fixed by the first end cover and the first end face.

[0030] In some embodiments, the shell is configured as a tubular structure with both ends open, and the first end cover and the second end cover are fixedly connected to the two ends of the shell respectively; the shell is further provided with a second limiting part and a first circuit board, and the first circuit board is limited by the second limiting part to the second end cover; the driving assembly and the first circuit board are loaded into the shell from the two ends of the shell respectively; the detection circuit board transmits the detection signals to the first circuit board through a flexible connecting part, and the first circuit board obtains the rotation parameters of the output disc based on the detection signals.

[0031] In some embodiments, the shell is configured as a tubular structure with both ends open, and the driving assembly comprises a cylindrical motor, a planetary gear reducer and a clutch arranged in sequence in a first direction; the cylindrical motor is arranged at an end of the driving assembly away from the first end cover, and the first direction is the direction of the cylindrical motor towards the first end cover; a flexible buffer ring is sleeved on the side of the cylindrical motor, and the flexible buffer ring abuts against the side wall of the shell.

[0032] The clutch comprises the outer clutch shell, the output disc, a leaf-shaped input part, a magnetic movable part and an attracting disc; the input end of the clutch is connected to the leaf-shaped input part; the output disc is provided with a rotation space; the leaf-shaped input part and the magnetic movable part are arranged inside the rotation space; and the output disc is provided with a transmission groove on the side wall of the rotation space.

[0033] When the leaf-shaped input part rotates in the rotation space, the leaf-shaped input part pushes the magnetic movable part to be clamped into the transmission groove, and the power of the leaf-shaped input part is transmitted to the output disc through the magnetic movable part.

[0034] When the push force of the leaf-shaped input member is removed, the attracting disc attracts the magnetic movable member to separate from the transmission groove, so that the power between the output disc and the leaf-shaped input member is cut off.

[0035] The output end of the cylindrical motor is connected to the input end of the planetary gear reducer, the output end of the planetary gear reducer is connected to the input end of the clutch, and the output disc of the clutch is externally output through the output shaft.

[0036] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the utility model. The above utility model contents can be combined arbitrarily, and these and other purposes of the utility model will be fully embodied through the following detailed description and drawings.

[0037] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0038] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0039] Figure 1 It is a structure schematic view of the driving device of an embodiment of the present application installed to the track;

[0040] Figure 2 It is a connection schematic view of the driving device and the connection box of an embodiment of the present application;

[0041] Figure 3 It is an assembly schematic view of the first end cover, the driving assembly, the detection circuit board and the shell of an embodiment of the present application;

[0042] Figure 4 It is an assembly schematic view of the first end cover, the driving assembly, the detection circuit board and the shell of an embodiment of the present application;

[0043] Figure 5 It is a schematic view of the rotating part relative to the end cover support in an embodiment of the present application;

[0044] Figure 6 It is a sectional view of the driving assembly, the output shaft, the first end cover, the rotating detection module and other structures of an embodiment of the present application;

[0045] Figure 7is Figure 6 Enlarged view of middle A part;

[0046] Figure 8 is the assembly schematic view of the end cover support, the driving assembly, the output shaft and the detection circuit board of an embodiment of the utility model;

[0047] Figure 9 is the assembly schematic view of the first end cover, the driving assembly, the output shaft and the detection circuit board of an embodiment of the utility model;

[0048] Figure 10 is the assembly schematic view of the driving assembly and the rotation detection module of an embodiment of the utility model;

[0049] Figure 11 is the exploded view of the clutch of an embodiment of the utility model;

[0050] Figure 12 is the sectional view of the clutch of an embodiment of the utility model;

[0051] Figure 13 is the exploded view of the driving assembly of an embodiment of the utility model;

[0052] Figure 14 is the assembly schematic view of the driving device of an embodiment of the utility model;

[0053] Figure 15 is the structural schematic view of the second end cover, the second limiting piece and the first circuit board in an embodiment of the utility model;

[0054] Figure 16 is the exploded view of the second end cover, the second limiting piece, the first circuit board and the second circuit board of an embodiment of the utility model;

[0055] Figure 17 is the sectional view of the second end cover, the second limiting piece, the first circuit board and the second circuit board of an embodiment of the utility model;

[0056] Figure 18 is the exploded view of the second end cover, the second limiting piece, the first circuit board and the second circuit board of an embodiment of the utility model;

[0057] Figure 19 is the structural schematic view of the driving assembly, the detection circuit board and the flexible connecting piece of an embodiment of the utility model;

[0058] Figure 20 is the sectional view of the driving assembly, the shell and the flexible connecting piece of an embodiment of the utility model;

[0059] Figure 21 is the assembly schematic view of the driving assembly and the first limiting piece of an embodiment of the utility model;

[0060] Figure 22 is the sectional view of the first limiting piece and the shell of one embodiment of the utility model;

[0061] Figure 23 is the structural schematic view of the driving device hidden shell of one embodiment of the utility model;

[0062] Figure 24 is the structural schematic view of the driving device hidden shell of one embodiment of the utility model;

[0063] Figure 25 is the three-dimensional sectional view of the first limiting piece and the shell in one embodiment of the utility model;

[0064] Figure 26 is the structural schematic view of the first limiting piece and the second limiting piece of one embodiment of the utility model;

[0065] Figure 27 is the structural schematic view of the second limiting piece, the second end cover, the first circuit board and the second circuit board of one embodiment of the utility model;

[0066] Figure 28 is the sectional view of the second limiting piece, the second end cover and the second circuit board of one embodiment of the utility model. DETAILED DESCRIPTION

[0067] In the description of the utility model, the orientation or position relation indicated by the terms "in", "out", "horizontal", "vertical", "upper", "lower", "top", "bottom", "left", "right" and the like is the orientation or position relation shown in the drawings, and is only for the convenience of describing the utility model and does not require the utility model to be necessarily constructed and operated in a particular orientation, therefore should not be understood as a limitation on the utility model.

[0068] In the description of the utility model specification, the terms "first", "second" are only for the purpose of description, and can not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features.

[0069] In the description of the utility model specification, unless otherwise explicitly specified and limited, the terms "connection" and the like should be understood in a broad sense, for example, can be fixedly connected, can be detachably connected, or integrated; can be mechanically connected, or electrically connected or can communicate with each other; can be directly connected, or indirectly connected through an intermediate medium, can be the communication or interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0070] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. The technical solutions of the various embodiments can be combined with each other, but the combination of the technical solutions must be based on the realization by a person skilled in the art. When the combination of the technical solutions is contradictory or unachievable, it should be considered that the combination of the technical solutions does not exist and is not within the protection scope of the present application.

[0071] In the prior art, the positioning structure and the limiting structure of the rotation detection module of the curtain motor have defects, which leads to the fact that the rotation detection module is easily damaged in the assembly and disassembly process, and the position precision between the rotation detection module and the driving assembly is not high. Specifically, in the prior art, the end cover is generally provided with buckles on both sides of the rotation detection module. In the assembly process, the assembly worker inserts the rotation detection module into the buckle by pressing. This not only is not convenient for assembly, but also has the risk of damaging the rotation detection module. In addition, the rotation detection module is difficult to disassemble from the end cover, and the rotation detection module is also easily damaged in the disassembly process. Since the rotation detection module is clamped on the end cover, there is no direct positioning relationship between the rotation detection module and the driving assembly, which leads to the fact that the position precision between the rotation detection module and the driving assembly is not high, and the detection precision of the rotation detection module is affected.

[0072] To solve the above problems, please refer to Figures 1-28 The present application provides a plurality of embodiments of the driving device 100. The driving device 100 can be understood as an electric driving device in the field of smart home, such as a curtain motor, a window opener, a door opener, etc. The present application takes the curtain motor as an example for detailed description, but the protection scope of the present application is not limited to the curtain motor.

[0073] In some embodiments, as Figure 1 shown, the driving device 100 is used to drive the opening and closing of the curtain. The driving device 100 is connected with the connection box 300 on the curtain rail 200. The connection box 300 is internally provided with a belt wheel connected with the output shaft 101 of the driving device 100. The rail 200 is internally provided with a synchronous belt matched with the belt wheel. The synchronous belt is connected with the end head 201. The driving device 100 drives the end head 201 to slide on the rail 200 through the synchronous belt. A plurality of slidable hanging rings 202 are arranged between the end head 201 and the connection box 300. The curtain is hung on the end head 201 and the hanging rings 202. The end head 201 drives the curtain to open and close.

[0074] As Figure 3 and Figures 8-10As shown, a feasible embodiment of the driving device 100 is given. The driving device 100 comprises a shell 1, a first end cover 2 and a driving assembly 3, the first end cover 2 is fixedly connected to the end of the shell 1; the driving assembly 3 is arranged inside the shell 1 and is fixedly connected to the first end cover 2, the driving assembly 3 is connected with an output shaft 101, the output shaft 101 penetrates through the first end cover 2 to output power externally; wherein, a rotation detection module 4 is further included for detecting the rotation parameter of the output end of the driving assembly 3; the rotation detection module 4 comprises a detection circuit board 41, the detection circuit board 41 is positioned by the driving assembly 3 to limit the movement freedom degree and the rotation freedom degree of the detection circuit board 41 in the plane of the first surface, the first surface is the surface of the detection circuit board 41 facing the first end cover 2; the detection circuit board 41 is clamped and fixed by the driving assembly 3 and the first end cover 2.

[0075] The rotation parameter can be rotation speed, rotation direction or rotation angle, etc. The rotation detection module 4 can be a Hall detection module or other modules capable of detecting the rotation parameter. The movement freedom degree in the plane of the first surface can be understood as the freedom degree of movement in the direction parallel to the first surface; the rotation freedom degree in the plane of the first surface can be understood as the rotation freedom degree of the rotation axis perpendicular to the first surface. The positioning manner between the detection circuit board 41 and the driving assembly 3 includes but is not limited to positioning through the cooperation of positioning columns and positioning holes, positioning through abutting against the edge of the detection circuit board 41 or other positioning manners.

[0076] In the embodiment of the utility model, the driving assembly 3 positions the detection circuit board 41, so that the two movement freedom degrees of the detection circuit board 41 parallel to the first surface and the rotation freedom degree of the rotation axis perpendicular to the first surface are limited. And the detection circuit board 41 is clamped by the driving assembly 3 and the first end cover 2, so that the movement freedom degree of the detection circuit board 41 perpendicular to the first surface and the two rotation freedom degrees of the rotation axis parallel to the first surface are limited. At this time, the six freedom degrees of the detection circuit board 41 are all limited, so that the detection circuit board 41 is fixed. Since the detection circuit board 41 is directly positioned by the driving assembly 3, the position accuracy between the detection circuit board 41 and the driving assembly 3 is improved, which is beneficial to improving the detection accuracy of the rotation detection module 4.

[0077] Compared with the traditional clamping fixation, the detection circuit board 41 provided by the utility model adopts clamping fixation, so that the pressing and clamping action in the assembly process is avoided, and the rotation detection module 4 can be prevented from being damaged in the assembly process; and compared with the clamping fixation, the clamping fixation makes the disassembly of the rotation detection module 4 more convenient, and the rotation detection module 4 will not be damaged in the disassembly process.

[0078] Thus, the drive device 100 provided by the utility model has solved the technical problems of the curtain motor in the prior art.

[0079] It is worth noting that the utility model embodiment realizes the fixation of the detection circuit board 41 in a manner of positioning and clamping cooperation, which not only ensures positioning accuracy, but also improves assembly convenience. When assembling, an assembly worker does not need to perform the operation of fixing the detection circuit board 41, but only needs to connect the driving assembly 3 and the first end cover 2, and the detection circuit board 41 can be clamped and fixed, thereby simplifying the assembly steps.

[0080] Further, as shown in the figure, Figures 8-10 The first connecting portion 32 is a connecting portion with threads, and the first end cover 2 is fixedly connected to the first connecting portion 32 through a connecting screw 25. The detection circuit board 41 is provided with a positioning hole 411, and the first connecting portion 32 is inserted into the positioning hole 411 to position the detection circuit board 41. In the utility model embodiment, the first connecting portion 32 is not only used for connecting the first end cover 2, but also cooperates with the positioning hole 411 to position the detection circuit board 41, so that the driving assembly 3 does not need to additionally provide a positioning structure to position the detection circuit board 41, and the structure is simplified. Moreover, the positioning structure and the connecting structure are the same structure, which ensures that the detection circuit board 41 is stably and reliably clamped.

[0081] The first connecting portion 32 protrudes from the first end face 33, so that the first connecting portion 32 can be inserted into the positioning hole 411 to realize the positioning function. The first connecting portion 32 can be a connecting column, a connecting block or the like. In an embodiment, as shown in the figure, Figure 10 The first connecting portion 32 includes a plurality of connecting columns 321, and the first end cover 2 is fixedly connected to each connecting column 321 through a connecting screw 25. The number of the positioning holes 411 is two, and the two positioning holes 411 are respectively positioned by the connecting columns 321 to limit the movement freedom and rotation freedom of the detection circuit board 41 in the plane where the first surface is located. In this way, the positioning accuracy of the detection circuit board 41 is improved, and the connecting columns 321 can be conveniently inserted into the positioning holes 411 to facilitate the assembly of the detection circuit board 41.

[0082] In some embodiments, as shown in the figure, Figure 9As shown, the first connecting portion 32 comprises a plurality of connecting columns 321, and the first end cover 2 is provided with annular positioning walls 211 at positions corresponding to the connecting columns 321, the annular positioning walls 211 are sleeved on the corresponding connecting columns 321 to realize positioning between the first end cover 2 and the driving assembly 3; the first end cover 2 is fixedly connected to each connecting column 321 by connecting screws 25; the ends of the annular positioning walls 211 abut against the detection circuit board 41, and the detection circuit board 41 is clamped and fixed by the annular positioning walls 211 and the driving assembly 3. Wherein, by abutting the annular positioning walls 211 against the detection circuit board 41, the abutting part is close to the connecting column 321, and the first end cover 2 is supported by the connecting column 321, avoiding that the abutting force changes too much due to too large or too small tightening force of the connecting screws 25, and ensuring that the abutting force meets the requirements. Furthermore, the connecting column 321 can not only position the detection circuit board 41, but also position the first end cover 2, so that the positional relationship between the detection circuit board 41 and the first end cover 2 is accurate.

[0083] It is worth mentioning that the annular positioning walls 211 are not only used for positioning between the first end cover 2 and the connecting column 321, but also used for abutting against the detection circuit board 41 to realize clamping and fixing of the detection circuit board 41, so that the structure is simplified and the assembly steps are simplified. In addition, the annular positioning walls 211 are sleeved on the connecting column 321, so that the annular positioning walls 211 laterally support the connecting column 321, which can enhance the connection strength between the connecting column 321 and the first end cover 2, avoiding breakage of the connecting part.

[0084] The annular positioning wall 211 can be understood as a ring structure or a structure similar to a ring, which can be a complete ring, or a ring structure composed of a plurality of intermittently arranged ribs, which can be a circular ring, a square ring, or an irregularly shaped ring. In an embodiment, as shown in the drawings, Figure 9 As shown, the number of the annular positioning walls 211 is four, wherein the lower two annular positioning walls 211 are complete circular ring structures, the upper two annular positioning walls 211 are circular ring structures with notches, and the four annular positioning walls 211 are distributed in a rectangular shape.

[0085] In an embodiment, the detection circuit board 41 is attached to the first end surface 33 of the driving assembly 3, and the detection circuit board 41 is clamped and fixed by the annular positioning walls 211 and the first end surface 33. In another embodiment, the first end surface 33 can also be provided with a supporting protrusion, the supporting protrusion abuts against the detection circuit board 41, and the detection circuit board 41 is clamped and fixed by the annular positioning walls 211 and the supporting protrusion.

[0086] Further, as shown in the drawings, Figure 8As shown, the connecting columns 321 are configured as cylinders, the number of the connecting columns 321 is four, and the four connecting columns 321 are distributed in a rectangular shape. The connecting columns 321 are provided with threaded holes, the first end cover 2 is provided with connecting holes 217 at positions corresponding to the connecting columns 321, the annular positioning wall 211 surrounds the connecting holes 217, and the connecting screws 25 are arranged in the connecting holes 217 from the side of the first end cover 2 away from the driving assembly 3 and connected to the threaded holes.

[0087] In some embodiments, as shown in Figure 9 and Figure 10 As shown, the detection circuit board 41 includes a first plate 412 for being clamped and fixed by the driving assembly 3 and the first end cover 2, and a second plate 413 integrally formed on the first plate 412 and protruding from the outer side of the driving assembly 3. The driving device 100 further includes a first circuit board 6 for electrically connecting the driving assembly 3 to control the driving assembly 3 to act. The first circuit board 6 is connected to the second plate 413 through a flexible connecting piece 69 to receive the detection signal transmitted by the detection circuit board 41. The second plate 413 protruding from the outer side of the driving assembly 3 provides sufficient space for the flexible connecting piece 69 to connect the second plate 413, and the flexible connecting piece 69 is not blocked by the driving assembly 3. In an embodiment, the second plate 413 is provided with four first welding holes 414, and the flexible connecting piece 69 is inserted into the first welding holes 414 and welded and fixed. The first circuit board 6 can be understood as a control circuit board, which is provided with a control module for receiving the detection signal and controlling the driving assembly 3 to rotate.

[0088] Further, as shown in Figure 10 and Figure 9 As shown, the first end surface 33 is configured as an annular surface, and the first plate 412 includes a semi-annular plate to fit the first end surface 33. The number of the positioning holes 411 is two, and the two positioning holes 411 are respectively located at two ends of the first plate 412. The positioning holes 411 arranged at the two ends of the first plate 412 can improve the positioning accuracy. The annular surface includes a surface similar to an annular surface, such as an irregular annular surface, etc. The semi-annular plate can be understood as a plate with a shape similar to a semi-annular plate, which can be a semi-circular annular plate, a semi-square annular plate, or other semi-annular plates.

[0089] In an embodiment, the first end surface 33 adopts an annular surface, a center of the first end surface 33 is provided with an output hole, an inside of the output hole is provided with a rotatable output boss 3414, the output boss 3414 is provided with a cross-shaped third key groove 3415, an end of the output shaft 101 is provided with a third key shaft matched with the third key groove 3415, the third key shaft is seamlessly inserted into the third key groove 3415, so that power of the output boss 3414 is transmitted to the output shaft 101.

[0090] As shown in Figure 9 , the first end cover 2 is provided with an abutting wall 212 facing the detection circuit board 41, the abutting wall 212 abuts against the detection circuit board 41, and the detection circuit board 41 is clamped and fixed by the abutting wall 212 and the first end surface 33. Wherein, the abutting wall 212 and the annular positioning wall 211 jointly abut against the detection circuit board 41, so that the detection circuit board 41 is clamped more stably. In an embodiment, the number of the abutting wall 212 is two.

[0091] In some embodiments, as shown in Figure 11 , the driving assembly 3 includes an output disc 341 connected with the output shaft 101, an outside of the output disc 341 is covered with a clutch housing 342, and the first connecting part 32 is arranged on the clutch housing 342; wherein, the output boss 3414 is integrally formed on the output disc 341, the first end surface 33 is arranged as an end surface of the clutch housing 342, the clutch housing 342 is provided with the output hole, and the output boss 3414 passes through the output hole and protrudes from the first end surface 33.

[0092] As shown in Figure 11 and Figure 10 , the output disc 341 is uniformly arranged with a plurality of permanent magnets 343 in the circumferential direction, the clutch housing 342 is provided with a magnetic sensing window 3421, and a part of the permanent magnets 343 are exposed through the magnetic sensing window 3421; the rotation detection module 4 includes two Hall sensors 42, and the two Hall sensors 42 are arranged at positions corresponding to the magnetic sensing window 3421, for converting a magnetic field parameter into a detection signal. Wherein, the clutch housing 342 is provided with the magnetic sensing window 3421, so that the Hall sensor is closer to the permanent magnet 343, and the Hall sensor 42 can sense more accurately. Two Hall sensors 42 can obtain forward and reverse rotation information of the output disc 341 through phase change of a magnetic field. The detection signal is an electric signal, which can be a digital signal or an analog signal. In an embodiment, the Hall sensor 42 adopts a patch type Hall sensor and is welded on the detection circuit board 41.

[0093] The output disc 341 has a second end surface 3411 facing the first end cover 2, and the second end surface 3411 is provided with a magnet mounting groove, and the permanent magnet 343 is embeddedly mounted in the magnet mounting groove, and the end surface of the permanent magnet 343 is flush with the second end surface 3411. The second end surface 3411 is a circular ring surface, and the number of the permanent magnets 343 is twelve, and each permanent magnet 343 is uniformly arranged on the second end surface 3411.

[0094] Further, as shown in Figure 10 The first end surface 33 is arranged as a surface of the clutch housing 342 facing the first end cover 2; the Hall sensing element 42 is arranged on a second surface of the detection circuit board 41 facing away from the first surface, and is embedded in the magnetic sensing window 3421, so that the first end surface 33 is attached to the detection circuit board 41, and the detection circuit board 41 is clamped and fixed by the first end cover 2 and the first end surface 33. Wherein, the embedding of the Hall sensing element 42 in the magnetic sensing window 3421 makes the Hall sensor closer to the permanent magnet 343, so as to improve the accuracy of the Hall sensing element 42 sensing the magnetic field. The second surface can be understood as a surface of the detection circuit board 41 facing the driving assembly 3, and the second surface is attached to the first end surface 33, so that the clamping of the detection circuit board 41 is more stable.

[0095] In some embodiments, the distance between the two Hall sensing elements 42 is greater than the distance between two adjacent permanent magnets 343, but less than twice the distance between two adjacent permanent magnets 343.

[0096] In some embodiments, as shown in Figure 14 The housing 1 is configured as a tubular structure with both ends open, and the first end cover 2 and the second end cover 5 are fixedly connected to the two ends of the housing 1 respectively; the housing 1 is further provided with a second limiting piece 8 and a first circuit board 6, and the first circuit board 6 is limited by the second limiting piece 8 to the second end cover 5; the driving assembly 3 and the first circuit board 6 are respectively loaded from the two ends of the housing 1. Wherein, the first end cover 2 and the second end cover 5 are detachably fixedly connected to the two ends of the housing 1, and in an embodiment, the housing 1 is configured as a square tube structure, and the cross section is square, and the four corners of the square are respectively provided with threaded holes, and the first end cover 2 and the second end cover 5 are fixed to the housing 1 by long screws 11.

[0097] The second limiting piece 8 can be integrally formed on the second end cover 5, can be clamped on the second end cover 5, can be fixed on the second end cover 5 by screws, or can be connected to the second end cover 5 in other ways. The first circuit board 6 is limited by the second limiting piece 8 and the second end cover 5. The driving assembly 3 and the first circuit board 6 are enclosed in the housing 1 by the first end cover 2 and the second end cover 5.

[0098] The utility model embodiment installs drive assembly 3 from one end of shell 1 with first end cover 2, first circuit board 6 and second limit piece 8 install from the other end of shell 1 with second end cover 5, and this assembly has the following beneficial effects: 1, improve assembly efficiency, 2, convenient to maintain and replace, and the both ends of shell 1 can be respectively detached and maintained, without disassembling the whole equipment, 3, first circuit board 6 and clutch 34 are respectively located at the both ends of shell 1, avoid the permanent magnet 343 on clutch shell 342 to first circuit board 6 produce electromagnetic interference.

[0099] Further, the detection circuit board 41 transmits the detection signal to the first circuit board 6 through the flexible connecting piece 69, and the first circuit board 6 obtains the rotation parameter of the output disc 341 based on the detection signal. Wherein, since the detection circuit board 41 and the first circuit board 6 are installed from the both ends of the shell 1 respectively, the distance between them changes greatly during assembly, and the flexible connecting piece 69 of the embodiment compensates for the distance change between the detection circuit board 41 and the first circuit board 6 during assembly by deforming, to ensure stable connection between them. And, thanks to the flexible connecting piece 69 that can be twisted and bent, the position design of the detection circuit board 41 and the first circuit board 6 is more flexible.

[0100] The flexible connecting piece 69 can be understood as a flexible conductive connecting piece, such as a wire, a flat cable, etc. In an embodiment, the detection circuit board 41 is provided with four first welding holes 414, and the flexible connecting piece 69 includes four first wires, one end of the first wire is welded to the first welding hole 414, and the other end is inserted into the first plug-in seat 61 on the first circuit board 6 through the first wiring terminal 691, so that the detection circuit board 41 and the first circuit board 6 are conductive.

[0101] In some embodiments, as shown in Figure 14 and Figure 8 The shell 1 is configured as a tubular structure with both ends open, the drive assembly 3 includes a cylindrical motor 36, a planetary gear reducer 35 and a clutch 34 arranged in sequence along a first direction, the cylindrical motor 36 is arranged at one end of the drive assembly 3 away from the first end cover 2, the first direction is the direction of the cylindrical motor 36 towards the first end cover 2, and the first direction has been marked in Figure 14 .

[0102] As shown in Figure 11As shown, the clutch 34 includes the clutch housing 342, the output disc 341, the vane-shaped input component 344, the magnetic movable component 345, and the suction disc 346. The input end of the clutch 34 is connected to the vane-shaped input component 344. The output disc 341 is provided with a rotation space 3412. The vane-shaped input component 344 and the magnetic movable component 345 are both disposed inside the rotation space 3412. The output disc 341 is provided with a transmission groove 3413 on the side wall of the rotation space 3412.

[0103] The rotation space 3412 is constructed as a recessed space open on one side and closed on the other, opening towards the input end of the clutch 34. The suction disk 346 is disposed on the open side of the rotation space 3412. The magnetic movable component 345 is a permanent magnet, cylindrical or spherical in shape, and is movable within the rotation space 3412. In one embodiment, as... Figure 12 As shown, the magnetic movable component 345 is cylindrical, with its end attracted by the attraction disk 346 and kept perpendicular to it. Compared to a spherical magnetic movable component 345, the cylindrical magnetic movable component 345 used in this embodiment has a higher load-bearing capacity. The leaf-shaped input component 344 is a leaf-shaped stretched body with one of the magnetic movable components 345 placed on each side. The leaf-shaped input component 344 is made of plastic and can push the magnetic movable component 345 outward when rotating, locking the magnetic movable component 345 into the transmission groove 3413. The thickness of the leaf-shaped input component 344 is slightly greater than the height of the magnetic movable component 345. The attraction disk 346 is made of iron and can attract the magnetic movable component 345. The transmission groove 3413 is an arc-shaped groove with a radius slightly smaller than the radius of the magnetic movable component 345.

[0104] like Figure 12 As shown, when the leaf-shaped input component 344 rotates within the rotation space 3412, the leaf-shaped input component 344 pushes the magnetic movable component 345 into the transmission groove 3413, and the power of the leaf-shaped input component 344 is transmitted to the output disk 341 through the magnetic movable component 345; when the thrust of the leaf-shaped input component 344 on the magnetic movable component 345 is removed, the attraction disk 346 attracts the magnetic movable component 345 to disengage from the transmission groove 3413, thereby cutting off the power between the output disk 341 and the leaf-shaped input component 344.

[0105] Two magnetic movable members 345 can be simultaneously clamped into the transmission groove 3413, or only one of them can be clamped into the transmission groove 3413. The leaf-shaped input member 344 drives the output disc 341 to rotate by pushing the magnetic movable member 345. When the leaf-shaped input member 344 stops rotating, the magnetic attraction force acting on the magnetic movable member 345 is not enough to disengage the transmission groove 3413, and the magnetic movable member 345 is still clamped between the leaf-shaped input member 344 and the transmission groove 3413. When the leaf-shaped input member 344 reverses a certain angle or the output disc 341 is driven to rotate a certain angle in the previous direction, a gap is formed between the transmission groove 3413 and the magnetic movable member 345, and the magnetic movable member 345 can be disengaged from the transmission groove 3413 under the action of the magnetic attraction force, so that the power between the output disc 341 and the leaf-shaped input member 344 is cut off.

[0106] A friction disc 347 made of plastic is arranged between the suction disc 346 and the magnetic movable member 345. The suction disc 346 is embedded in the side of the friction disc 347 away from the magnetic movable member 345, the magnetic movable member 345 is attached to the friction disc 347 and slides on the surface of the friction disc 347. The surface of the friction disc 347 is relatively smooth, so that the frictional resistance of the magnetic movable member 345 sliding is small, and the magnetic movable member 345 can be disengaged from the transmission groove 3413 under the action of the suction disc 346.

[0107] As shown in Figure 11 The planetary gear reducer 35 includes a third reducer housing 354, the clutch housing 342 is clamped on the side of the third reducer housing 354, and a cylindrical clutch 34 cavity is formed between the clutch housing 342 and the third reducer housing 354. The suction disc 346, the friction disc 347, the leaf-shaped input member 344, the magnetic movable member 345 and the output disc 341 are all contained in the clutch 34 cavity. The side wall of the third reducer housing 354 extends an annular connecting wall 3541 towards the clutch housing 342, the clutch housing 342 is sleeved on the annular connecting wall 3541, and the output disc 341 is embedded in the inner side of the annular connecting wall 3541, as shown in Figure 12 The clutch housing 342, the third reducer housing 354 and the output disc 341 are nested with each other, and the side of the output disc 341 is radially limited by the annular connecting wall 3541, so that the output disc 341 rotates more stably.

[0108] As shown in Figure 6 The friction disc 347 abuts against the third reducer housing 354 on the left side and abuts against the output disc 341 on the right side, and the side is limited by the annular connecting wall 3541. The suction disc 346 is embedded in the friction disc 347 and is limited between the friction disc 347 and the third reducer housing 354.

[0109] In some embodiments, such as Figure 13 and Figure 6 As shown, the output end of the cylindrical motor 36 is connected to the input end of the planetary gear reducer 35, and the output end of the planetary gear reducer 35 is connected to the input end of the clutch 34. A transmission wheel 361 with external splines is provided at the output end of the cylindrical motor 36. The planetary gear reducer 35 includes a reducer input shaft 351, one end of which has a spline groove. The transmission wheel 361 is embedded in the spline groove to achieve power transmission between the cylindrical motor 36 and the planetary gear reducer 35.

[0110] The planetary gear reducer 35 further includes a first reducer housing 352, a second reducer housing 353, a first-stage planetary carrier 355, a second-stage planetary carrier 356, three first-stage planetary gears 357, and three second-stage planetary gears 358. The first-stage planetary carrier 355 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 357 are rotatably mounted on the three first-stage planetary shafts. The second-stage planetary carrier 356 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 358 are rotatably mounted on the three second-stage planetary shafts.

[0111] The input shaft 351 of the reducer is machined with a first-stage sun gear 3511, and the inner wall of the second reducer housing 353 is machined with a first-stage internal gear ring. The first-stage sun gear 3511, the first-stage planetary gears 357, and the first-stage internal gear ring cooperate to form a first-stage planetary gear reducer 35. The first-stage sun gear 3511 and the first-stage planetary gears 357 are both helical gears, and the first-stage internal gear ring is a helical gear ring.

[0112] A second-stage sun gear 3551 is machined on the end of the first-stage planetary carrier 355 away from the first-stage planetary shaft. A second-stage internal gear ring is machined on the inner wall of the third reducer housing 354. The second-stage sun gear 3551, the second-stage planetary gears 358, and the second-stage internal gear ring cooperate to form a second-stage planetary gear reducer 35. The second-stage planetary carrier 356 serves as the output end of the planetary gear reducer 35. A second keyway is provided on the end of the second-stage planetary carrier 356 away from the second-stage planetary shaft. A second key shaft is integrally formed on the vane-shaped input component 344 of the clutch 34. The second key shaft is embedded in the second keyway to realize power transmission between the planetary gear reducer 35 and the clutch 34.

[0113] Furthermore, such as Figure 13As shown, one end of the first speed reducer housing 352 is fixed to the cylindrical motor 36 by screws, and the other end is clamped to the side of the third speed reducer housing 354. The second speed reducer housing 353 is arranged inside the first speed reducer housing 352. The end of the second speed reducer housing 353 facing the third speed reducer housing 354 is provided with an external gear 3531 which is embedded in the second-stage inner ring gear to achieve circumferential positioning between the second speed reducer housing 353 and the third speed reducer housing 354.

[0114] Further, as shown in Figure 6 The end of the first-stage sun gear 3511 is provided with a first positioning boss which is inserted into a first positioning groove provided in the first carrier, so that the rotation of the speed reducer input shaft 351 is more stable and is prevented from tilting. The end of the second-stage sun gear 3551 is provided with a second positioning boss which is inserted into a second positioning groove provided in the second carrier, so that the first-stage carrier 355 rotates stably.

[0115] Further, as shown in Figure 11 and Figure 10 The output disc 341 of the clutch 34 outputs power externally through the output shaft 101. The side of the output disc 341 facing away from the planetary gear speed reducer 35 is provided with a cross-shaped third key groove 3415. One end of the output shaft 101 is provided with a third key shaft which is embedded in the third key groove 3415 to achieve power transmission between the two. The output disc 341 is provided with the output boss 3414, and the third key groove 3415 is arranged in the output boss 3414. The clutch housing 342 is provided with a clutch output hole 3422, and the output boss 3414 passes through the clutch output hole 3422 to output power externally. The clutch output hole 3422 is communicated with the magnetic sensing window 3421.

[0116] As shown in Figure 14 Since the driving assembly 3 is long and only one end of the driving assembly 3 is fixedly connected to the first end cover 2, the driving assembly 3 and the first end cover 2 form a structure similar to a cantilever beam. However, the heavy cylindrical motor 36 is located at the end far from the first end cover 2, which causes the driving assembly 3 to easily shake. When the driving device 100 falls, the driving assembly 3 shakes greatly, and the cylindrical motor 36 will hit the side wall of the shell 1, causing damage to the cylindrical motor 36 or the shell 1. To solve this problem, in an embodiment, as shown in Figure 19 and Figure 20As shown, the cylindrical motor 36 is sleeved with a flexible buffer ring 362 on the side, which abuts against the side wall of the shell 1. The flexible buffer ring 362 provides lateral buffering for the cylindrical motor 36, avoiding the cylindrical motor 36 from impacting the side wall of the shell 1 and causing damage to the cylindrical motor 36 or the shell 1. The flexible buffer ring 362 is a flexible ring structure, which can be made of foam, rubber, silica gel or other flexible materials.

[0117] In an embodiment, the flexible buffer ring 362 is made of foam and has a circular ring shape, with an inner diameter slightly smaller than the diameter of the cylindrical motor 36, so that there is an interference between the flexible buffer ring 362 and the cylindrical motor 36, avoiding the flexible buffer ring 362 from falling off.

[0118] Further, as shown, Figure 20 the outer diameter of the flexible buffer ring 362 is slightly larger than the width of the inner wall of the shell 1, so that there is an interference between the two sides of the flexible buffer ring 362 and the shell 1, and the buffering effect of the flexible buffer ring 362 is better.

[0119] As shown, Figure 20 and Figure 19 the cross section of the inner cavity of the shell 1 is rectangular, and the inner cavity of the shell 1 leaves a wiring space above and below the flexible buffer ring 362, and the flexible connecting piece 69 passes through the wiring space. Thanks to the flexible buffer ring 362, the inner cavity of the shell 1 is divided into a wiring space, so that the flexible connecting piece 69 can only be wired from the upper and lower sides of the cylindrical motor 36, but cannot reach the left and right sides of the cylindrical motor 36. Therefore, when the driving device 100 falls, the shaking of the cylindrical motor 36 to the left and right sides will not squeeze the flexible connecting piece 69, avoiding damage to the flexible connecting piece 69; and there is sufficient space above and below the cylindrical motor 36, and the shaking of the cylindrical motor 36 is not enough to squeeze the flexible connecting piece 69, avoiding damage to the flexible connecting piece 69.

[0120] It is worth mentioning that, since the driving assembly 3 and the first end cover 2 form a structure similar to a cantilever beam, when the driving device 100 falls, if the driving assembly 3 shakes too much, there is a risk of breaking the connection between the driving assembly 3 and the first end cover 2. The flexible buffer ring 362 reduces the shaking amplitude of the driving assembly 3 to some extent, reducing the risk of breaking the connection. Further, as shown, Figure 9 the annular positioning wall 211 is sleeved on the connecting column 321, which can enhance the structural strength of the connection and prevent the connection from breaking. In addition, the first end cover 2 is provided with a plurality of reinforcing ribs outside the annular positioning wall 211, which are used to enhance the structural strength of the annular positioning wall 211 and further prevent the connection from breaking.

[0121] Because the detection circuit board 41 and the first circuit board 6 are respectively installed from both ends of the housing 1, the spacing between the detection circuit board 41 and the first circuit board 6 varies greatly during assembly, and their positions do not correspond, making the assembly of the detection circuit board 41 and the first circuit board 6 difficult and resulting in poor connection stability. To solve this problem, in some embodiments, such as Figure 14 , Figure 19 , Figure 23 as well as Figure 24 As shown, the detection circuit board 41 is electrically connected to the first circuit board 6 via the flexible connector 69. During assembly, the flexible connector 69 deforms to adapt to the driving component 3, maintaining conductivity between the detection circuit board 41 and the first circuit board 6 regardless of the deformation. This deformation of the flexible connector 69 to adapt to the driving component 3 can be understood as the flexible connector 69 undergoing twisting, bending, or other deformations along the side of the driving component 3. The flexible connector 69 adapts to changes in the shape of the side of the driving component 3 to compensate for changes in the spacing between the detection circuit board 41 and the first circuit board 6, ensuring a stable connection. Furthermore, even when the positions of the detection circuit board 41 and the first circuit board 6 do not correspond, the flexible connector 69 can twist and bend to ensure a stable connection, making the positional design of the detection circuit board 41 and the first circuit board 6 more flexible and reducing assembly difficulty.

[0122] In some embodiments, such as Figure 14 As shown, the drive assembly 3 is a cylindrical elongated structure. The first welding hole 414 is located on the second plate 413 of the detection circuit board 41. The second plate 413 protrudes downward from the drive assembly 3. The end of the flexible connector 69 is provided with a first terminal 691. The flexible connector 69 bends from bottom to top along the side of the drive assembly 3. The first terminal 691 is inserted into the first socket 61 of the first circuit board 6.

[0123] In other embodiments, such as Figure 19 and Figure 20 As shown, a flexible buffer ring 362 is sleeved on the side of the columnar motor 36, and the flexible connector 69 passes through the space below the flexible buffer ring 362 and then bends upward. The first terminal 691 is inserted into the first connector 61.

[0124] In other embodiments, such as Figure 23 and Figure 24 As shown, the tail end of the columnar motor 36 is fitted with a first limiting member 9. The side of the first limiting member 9 abuts against the inner wall of the outer shell 1. The flexible connector 69 passes through the first limiting member 9 and then bends upward. The first terminal 691 is inserted into the first connector 61.

[0125] exist Figure 14In the shown embodiment, the cross section of the inner cavity of the housing 1 is rectangular, the height in the vertical direction is greater than the width in the horizontal direction, and the first circuit board 6 is arranged in the vertical direction, so that the width of the first circuit board 6 in the vertical direction is wider, which is beneficial to shorten the length of the first circuit board 6 in the first direction, thereby shortening the overall length of the driving device 100 in the first direction.

[0126] As shown in Figure 14 and Figure 15 , one end of the first circuit board 6 facing the driving assembly 3 is sequentially provided with a first socket 61, a second socket 62 and a third socket 63 from top to bottom, and the flexible connecting piece 69 is inserted into the first socket 61 through a first connecting terminal 691. The tail of the cylindrical motor 36 is connected with a second connecting terminal 363, the second connecting terminal 363 is inserted into the second socket 62, and the cylindrical motor 36 is connected to the first circuit board 6 through the second connecting terminal 363. The inside of the housing 1 is further provided with a second circuit board 7, and the second circuit board 7 is provided with a fourth socket 71, and the fourth socket 71 is connected to the third socket 63 through a third wire 72, so as to realize the conduction between the second circuit board 7 and the first circuit board 6.

[0127] Further, the length of the flexible connecting piece 69 is L1, the distance between the detection circuit board 41 and the first circuit board 6 is L2, and L1 / 5≤L1-L2≤L1 / 2, so as to adapt to the deformation of the flexible connecting piece 69 during assembly. During assembly, the driving assembly 3 is first installed on the first end cover 2, and then the driving assembly 3 is put into the housing 1, and the first end cover 2 is fixed to the housing 1. Thanks to the length L1 of the flexible connecting piece 69 satisfying L1-L2≥L1 / 5, the first connecting terminal 691 can pass from one end of the housing 1 to the other end, so as to be inserted into the first socket 61 of the first circuit board 6. Then the first circuit board 6 and the second limiting piece 8 are put into the housing 1, and finally the second end cover 5 is installed on the other end of the housing 1. In an exemplary embodiment, the length L1 of the flexible connecting piece 69 is 235 mm, the distance L2 between the detection circuit board 41 and the first circuit board 6 is 148 mm, and the length L3 of the housing 1 in the first direction is 188 mm.

[0128] In some embodiments, as shown in Figures 15-18 , the structure of the first circuit board 6, the second circuit board 7, the second limiting piece 8 and the second end cover 5 is shown. As shown in Figure 16As shown, the first circuit board 6 is jointly limited by the second limiting member 8 and the second end cover 5. The second limiting member 8 is provided with a first slot 81. The first slot 81 has a first insertion end near the second end cover 5 and a first stop end away from the second end cover 5. The first circuit board 6 is inserted into the first slot 81 through the first insertion end. When the second limiting member 8 is installed on the second end cover 5, the first circuit board 6 is limited between the first stop end and the second end cover 5. The first insertion end is... Figure 16 The right end of the first slot 81, the first stop end is... Figure 16 The first end of the first slot 81 is located at the left end. The first stop end is provided with a stop block, a stop plate, or other structure capable of preventing the first circuit board 6 from moving to the left. The second end cover 5 prevents the first circuit board 6 from moving to the right. The first slot 81 restricts the vertical movement of the first circuit board 6, thereby limiting the position of the first circuit board 6. In one embodiment, as shown... Figure 16 As shown, the first stop end is provided with a first baffle plate 811.

[0129] like Figure 16 As shown, the second limiting member 8 is provided with a second slot 82 parallel to the first slot 81. The second slot 82 has a second insertion end near the second end cover 5 and a second stop end away from the second end cover 5. The second circuit board 7 is inserted into the second slot 82 through the second insertion end. When the second limiting member 8 is installed on the second end cover 5, the second circuit board 7 is limited between the second stop end and the second end cover 5. The second insertion end is... Figure 16 The right end of the second slot 82, the second stop end is... Figure 16 The second stop end is located at the left end of the second slot 82. The second stop end is provided with a stop block, a stop plate, or other structure capable of preventing the second circuit board 7 from moving to the left. The second end cover 5 prevents the second circuit board 7 from moving to the right, and the second slot 82 restricts the vertical movement of the second circuit board 7, thereby limiting the position of the second circuit board 7. In one embodiment, as... Figure 18 As shown, the second stop end is provided with a second baffle plate 821.

[0130] Furthermore, the second limiting member 8 is provided with the first slot 81 on both sides of the first circuit board 6, and the first circuit board 6 is inserted into the first slot 81 on both sides. The second limiting member 8 is provided with the second slot 82 on both sides of the second circuit board 7, and the second circuit board 7 is inserted into the second slot 82 on both sides.

[0131] During assembly, the first circuit board 6 and the second circuit board 7 are first inserted into the first slot 81 and the second slot 82 respectively, and then the second limiting member 8 is installed on the second end cover 5, thereby limiting the position of the first circuit board 6 and the second circuit board 7 by the second limiting member 8 and the second end cover 5.

[0132] Furthermore, such as Figure 15 and Figure 17 As shown, where, Figure 17 This is a cross-sectional view of the second limiting member 8, the first circuit board 6, and the second circuit board 7. Figure 17 The electronic components on the first circuit board 6 and the second circuit board 7 are not shown. The second circuit board 7 carries high-voltage circuitry, and the first circuit board 6 carries low-voltage circuitry; the first circuit board 6 and the second circuit board 7 are electrically connected. The second limiting member 8 provides a partition 83 between the first circuit board 6 and the second circuit board 7. The partition 83 serves as electrical isolation, and its size is sufficient to cover the second circuit board 7, thus improving the isolation between the first circuit board 6 and the second circuit board 7.

[0133] like Figure 18 and Figure 15 As shown, most of the electronic components on the second circuit board 7 are located on the side opposite to the first circuit board 6, and most of the electronic components on the first circuit board 6 are located on the side opposite to the second circuit board 7.

[0134] Furthermore, such as Figure 17 and Figure 18 As shown, the second limiting member 8 also includes an integrally formed high-voltage cover 84. The high-voltage cover 84 and the partition 83 surround the second circuit board 7, and the high-voltage cover 84 is used for electrical isolation between the second circuit board 7 and the outer casing 1. The second limiting member 8 has first snap-fit ​​protrusions 85 on both sides of the partition 83 and second snap-fit ​​protrusions 86 on the outer side of the high-voltage cover 84. The inner wall of the second end cover 5 has end cover buckles 51 at the corresponding positions of the first snap-fit ​​protrusions 85 and the second snap-fit ​​protrusions 86. Each end cover buckle 51 snaps into the first snap-fit ​​protrusion 85 and the second snap-fit ​​protrusion 86, so that the second limiting member 8 is snapped and fixed to the second end cover 5. Further, after the second limiting member 8 is snapped and fixed to the second end cover 5, glue is applied to the positions of the first snap-fit ​​protrusions 85 and the second snap-fit ​​protrusions 86 to prevent the end cover buckles 51 from loosening.

[0135] In some embodiments, such as Figure 16As shown, the second end cover 5 is provided with a button 52, the first circuit board 6 is provided with an electronic switch 68 at the position corresponding to the button 52, and the button 52 is used to trigger the electronic switch 68; the second end cover 5 is provided with a light guide hole 53, and the first circuit board 6 is provided with an indicator lamp 64 at the position corresponding to the light guide hole 53; the second end cover 5 is provided with a power interface 54, and the second circuit board 7 is provided with a power terminal 73 at the position corresponding to the power interface 54.

[0136] Further, as shown in the figures, the electronic switch 68 and the indicator lamp 64 are arranged at the end of the first circuit board 6, and the trigger part of the electronic switch 68 protrudes from the first circuit board 6, so that the button 52 triggers the electronic switch 68. The electronic switch 68 can be, for example, a tactile switch, a micro switch, a detection switch, etc. In an embodiment, the electronic switch 68 is a tactile switch. The indicator lamp 64 can be an LED lamp bead.

[0137] Further, as shown in the figures, Figure 16 The first circuit board 6 is provided with a wireless communication module 65, which is arranged at one end close to the second end cover 5 to prevent the shell 1 from shielding the wireless signal. The first circuit board 6 is hollowed out at the position corresponding to the antenna of the wireless communication module 65 to avoid the first circuit board 6 from blocking the wireless signal.

[0138] As shown in the figures, Figure 14 The wireless communication module 65 is arranged at the position close to the upper side of the first circuit board 6, so that after the drive device 100 is installed on the track 200, the wireless communication module 65 can be located on the side of the first circuit board 6 away from the wall, so that the strength of the wireless signal is higher. Specifically, as shown in the figures, Figure 1 The connecting box 300 is arranged at the end of the track 200, generally close to the wall, and the drive device 100 is connected to the connecting box 300 of the track 200 through the hanging ear 23. The drive device 100 is provided with an operating rod 24 for controlling the rotation of the hanging ear 23, and the operating rod 24 is arranged at the side close to the track 200, as shown in the figures, Figure 14 The wireless communication module 65 is deviated to the same side as the operating rod 24, as shown in the figures, Figure 14 and Figure 1 It can be seen that after the drive device 100 is installed on the track 200, the wireless communication module 65 can be located on the side of the first circuit board 6 away from the wall, so as to avoid the wireless signal being weakened by being blocked by the wall.

[0139] Further, as shown in the figures, Figure 14As shown, the driving assembly 3 is configured as a long strip structure, and one end of the driving assembly 3 is fixedly connected to the first end cover 2, so that the driving assembly 3 and the first end cover 2 form a cantilever structure, which can be understood as a structure similar to a cantilever beam. Such a structure is easy to sway at the end far away from the first end cover 2, and since the heavy cylindrical motor 36 is located at the end far away from the first end cover 2, the driving assembly 3 is more likely to sway. When the driving device 100 falls, the driving assembly 3 sways greatly, which causes the cylindrical motor 36 or the shell 1 to be damaged. Moreover, if the driving assembly 3 sways too much, the connecting part of the driving assembly 3 and the first end cover 2 is at risk of breaking.

[0140] In Figures 19-20 In the embodiment shown, the flexible buffer ring 362 is used to provide lateral buffering for the cylindrical motor 36, so as to avoid the cylindrical motor 36 from hitting the side wall of the shell 1 and causing the cylindrical motor 36 or the shell 1 to be damaged. Moreover, the flexible buffer ring 362 reduces the amplitude of the driving assembly 3 swaying to a certain extent, thereby reducing the risk of the connecting part breaking.

[0141] In other embodiments, as Figures 21-26 shown, two other feasible implementations are given. The shell 1 is internally provided with a first limiting piece 9, which is sleeved on the end of the driving assembly 3 far away from the first end cover 2, and is used to radially support the driving assembly 3, so as to avoid the driving assembly 3 from swaying and thereby prevent the cylindrical motor 36 from hitting the shell 1. Moreover, the first limiting piece 9 reduces the amplitude of the driving assembly 3 swaying, thereby avoiding the connecting part connected to the first end cover 2 from breaking.

[0142] As Figure 22 and Figure 25 shown, in the two embodiments, the upper, lower, left and right of the first limiting piece 9 abut against the inner wall of the shell 1, so that the first limiting piece 9 provides more stable radial support for the cylindrical motor 36.

[0143] As Figures 21-23 shown, in a feasible embodiment, the second limiting piece 8 is fixedly connected to the second end cover 5, and the axial direction of the first limiting piece 9 is jointly limited by the second limiting piece 8 and the driving assembly 3. Since the first limiting piece 9 is sleeved on the driving assembly 3, the axial direction of the first limiting piece 9 can be understood as the axial direction of the driving assembly 3. The axial displacement of the first limiting piece 9 is jointly limited by the second limiting piece 8 and the driving assembly 3, and the radial displacement of the first limiting piece 9 is limited by the shell 1, so that the freedom degree of displacement of the first limiting piece 9 in each direction is limited. The first limiting piece 9 relies on the limiting action between parts to achieve limiting, which simplifies the limiting structure and improves the assembly efficiency.

[0144] Wherein, as the driving assembly 3 and the second limiting member 8 are respectively installed from both ends of the shell 1, in order to avoid the first limiting member 9, the driving assembly 3 and the second limiting member 8 from generating an interference in the axial direction, in some embodiments, as shown in Figure 23 , the axial direction of the first limiting member 9 is not completely limited, and there is an activity space of about 1mm in the axial direction, as long as the first limiting member 9 cannot be separated from the driving assembly 3.

[0145] Further, as shown in Figure 21 and Figure 22 , the second limiting member 8 is formed separately from the first limiting member 9, the first limiting member 9 includes a sleeve part 91 and a radial support part 92 arranged around the sleeve part 91, the sleeve part 91 is sleeved on the driving assembly 3, and the radial support part 92 abuts against the inner wall of the shell 1, so that the driving assembly 3 is radially supported by the first limiting member 9.

[0146] Further, the radial support part 92 is integrally formed with the sleeve part 91, the radial support part 92 includes a radial support wall 921 and an axial support wall 922, the radial support wall 921 extends radially around from the side of the sleeve part 91, and the axial support wall 922 extends axially from the end of the radial support wall 921.

[0147] As shown in Figure 23 , the second direction of the second limiting member 8 is towards the first limiting member 9, the axial support wall 922 extends towards the first end cover 2, and the extending direction is outwardly inclined relative to the second direction, the included angle between the extending direction and the second direction is less than 10°, that is, the extending direction of the axial support wall 922 is slightly inclined towards the first end cover 2 and the side wall of the shell 1, so as to facilitate the first limiting member 9 to be installed from the left end of the shell 1 along with the driving assembly 3, as shown in Figure 22 , the outward inclination of the axial support wall 922 makes the axial support wall 922 abut against the side wall of the shell 1 only at the end, and the axial support wall 922 can ensure that the upper, lower, left and right axial support walls 922 can all abut against the side wall of the shell 1 through slight elastic deformation, thereby improving the support stability. In an embodiment, the second direction is the same as the first direction, which has been indicated in Figure 23 .

[0148] Further, as shown in Figure 22 , the flexible connecting member 69 includes at least one first wire, and the radial support part 92 is provided with a wire groove 923 for the first wire to pass through; as shown in Figure 23As shown, the flexible connector 69 includes four first wires and a first terminal 691 disposed at the end of the first wires. The first terminal 691 is connected to the first circuit board 6. The wire groove 923 is connected to the side of the radial support 92. The first wires are inserted into the wire groove 923 from the side of the radial support 92 to prevent the first terminal 691 from being unable to pass through the wire groove 923.

[0149] The wire groove 923 is elongated and its width is adapted to the diameter of the first wire, so that the wire groove 923 can clamp the first wire to lock the position and bending posture of the first wire to avoid damage to the first wire.

[0150] like Figure 22 As shown, the radial support wall 921 has at least two arc-shaped buffer holes 924, which provide space for elastic deformation of the radial support wall 921; the axial support wall 922 has multiple axially extending segmented holes 925, which extend to the end of the axial support wall 922 to divide the axial support wall 922 into multiple segments, thereby increasing the deformation capacity of the axial support wall 922. When the drive device 100 falls, the buffer holes 924 and the axial support wall 922 deform simultaneously to reduce the impact force and prevent damage to the columnar motor 36.

[0151] In some embodiments, such as Figure 21 and Figure 23 As shown, the first limiting member 9 has a first abutting portion 93 facing the second limiting member 8, and the second limiting member 8 abuts against the first abutting portion 93 to restrict the first limiting member 9 from moving towards the first axis. The sleeve portion 91 of the first limiting member 9 has a second abutting portion 911 at the end of the driving assembly 3, and the end of the driving assembly 3 abuts against the second abutting portion 911 to restrict the first limiting member 9 from moving towards the second axis, which is opposite to the first axis. The first axis can be understood as the direction of the first limiting member 9 towards the second limiting member 8, and the second axis can be understood as the direction of the first limiting member 9 towards the first end cap 2.

[0152] Furthermore, the sleeve portion 91 is configured as a sleeve ring, which is sleeved on the drive assembly 3; the second abutment portion 911 is configured as a limiting ring, which abuts against the end of the drive assembly 3.

[0153] Furthermore, such as Figure 21 and Figure 23As shown, the end of the drive assembly 3 is provided with a second wire 365, which passes through the hollow part of the limiting ring and connects to the first circuit board 6. The second wire 365 is connected to a second terminal block 363, which is inserted into the second connector 62. The columnar motor 36 is connected to the first circuit board 6 through the second terminal block 363.

[0154] Furthermore, the tail end of the columnar motor 36 is provided with two conductive clamps 364, which clamp the second wire 365 and conduct electricity. In some embodiments, the conductive clamps 364 are fitted with insulating sleeves.

[0155] In another feasible embodiment, such as Figures 24-26 As shown, a first limiting member 9 is provided at the end of the second limiting member 8 away from the second end cap 5. The first limiting member 9 and the second limiting member 8 are integrally formed. The first limiting member 9 includes a sleeve portion 91 and a radial support portion 92 located around the sleeve portion 91. The sleeve portion 91 is sleeved on the end of the driving assembly 3, and the radial support portion 92 abuts against the inner wall of the outer shell 1 so that the driving assembly 3 is radially supported by the first limiting member 9.

[0156] Because the first limiting member 9 and the second limiting member 8 are both fixed to the second end cover 5, the first limiting member 9 and the driving assembly 3 are respectively inserted from both ends of the outer shell 1, making it difficult for the driving assembly 3 to be accurately inserted into the sleeve portion 91. Therefore, as Figure 24 and Figure 25 As shown, the socket 91 is provided with a flared opening facing the drive assembly 3, and the opening of the flared opening is widened towards the drive assembly 3. The socket 91 is fitted onto the drive assembly 3 through the flared opening for easy assembly.

[0157] Furthermore, such as Figure 24 and Figure 26 As shown, the radial support portion 92 is integrally formed with the sleeve portion 91. The radial support portion 92 includes a radial support wall 921 and an axial support wall 922. The radial support wall 921 extends radially from the side of the sleeve portion 91 in all directions, and the axial support wall 922 extends axially from the end of the radial support wall 921.

[0158] like Figure 24As shown, with the opposite direction of the second direction designated as the third direction, the axial support wall 922 extends toward the second end cap 5, and the extension direction is inclined outward relative to the third direction. The angle between the extension direction and the third direction is less than 10°, that is, the extension direction of the axial support wall 922 is toward the second end cap 5 and slightly inclined toward the side wall of the outer shell 1, so that the first limiting member 9 can be inserted into the outer shell 1 from the right end along with the second limiting member 8. The axial support wall 922 is inclined toward the side wall of the outer shell 1 so that only the end of the axial support wall 922 abuts against the side wall of the outer shell 1. The axial support wall 922 can be slightly elastically deformed to ensure that the upper, lower, left, and right axial support walls 922 can all abut against the side wall of the outer shell 1, thereby improving the support stability.

[0159] Compared to Figure 16 The illustrated embodiment, in Figures 24-26 In one embodiment, the second limiting member 8 is integrally formed with the first limiting member 9. In addition, in Figures 24-26 In the embodiments, other technical details of the second limiting member 8 are the same as those in the embodiments. Figure 16 The embodiments shown are the same, and the technical details of the second limiting member 8 have been described in detail above, so they will not be repeated here.

[0160] In another embodiment of this utility model, such as Figure 27 and Figure 28 As shown in the figure, electronic components are not displayed. The second limiting member 8 is integrally formed with the second end cover 5, and the first circuit board 6 is jointly limited by the second limiting member 8 and the second end cover 5.

[0161] Furthermore, such as Figure 27 As shown, the second limiting member 8 is provided with a third slot 88 on both sides of the first circuit board 6; the end of the third slot 88 away from the second end cover 5 is a third insertion end, and the first circuit board 6 is inserted into the third slot 88 through the third insertion end; the third insertion end is provided with a first buckle 881, and the first card interface 67 is provided on both sides of the first circuit board 6; the two sides of the first circuit board 6 are respectively inserted into the third slot 88, the end of the first circuit board 6 abuts against the second end cover 5, and the first buckle 881 is engaged with the first card interface 67, so that the first circuit board 6 is limited by the third slot 88, the first buckle 881 and the second end cover 5.

[0162] Further, the third slot 88 is provided with a first installation gap 882 between the third slot 88 and the first buckle 881, the first protruding part 66 is provided on one end of the first circuit board 6 close to the second end cover 5, the first protruding part 66 protrudes laterally from the first circuit board 6, and the first protruding part 66 is inserted into the third slot 88 through the first installation gap 882; a first bevel is provided between the first protruding part 66 and the first clamping interface 67, in the process of inserting the first circuit board 6 into the third slot 88, the first buckle 881 is opened to both sides by the first bevel, and when the first circuit board 6 abuts against the second end cover 5, the first buckle 881 rebounds and is clamped into the first clamping interface 67.

[0163] Further, as shown in Figure 27 and Figure 28 the fourth slot 89 is provided on both sides of the second circuit board 7, the fourth slot 89 is parallel to the third slot 88; one end of the fourth slot 89 away from the second end cover 5 is a fourth insertion end, the second circuit board 7 is inserted into the fourth slot 89 from the fourth insertion end; the fourth insertion end is provided with a second buckle 891, and the second circuit board 7 is provided with a second clamping interface 74 on both sides; the second circuit board 7 is inserted into the fourth slot 89 on both sides respectively, the end of the second circuit board 7 abuts against the second end cover 5, and the second buckle 891 is clamped into the second clamping interface 74, so that the second circuit board 7 is limited by the fourth slot 89, the second buckle 891 and the second end cover 5.

[0164] Further, the fourth slot 89 is provided with a second installation gap 892 between the fourth slot 89 and the second buckle 891, the second protruding part 75 is provided on one end of the second circuit board 7 close to the second end cover 5, the second protruding part 75 protrudes laterally from the second circuit board 7, and the second protruding part 75 is inserted into the fourth slot 89 through the second installation gap 892; a second bevel is provided between the second protruding part 75 and the second clamping interface 74, in the process of inserting the second circuit board 7 into the fourth slot 89, the second buckle 891 is opened to both sides by the second bevel, and when the second circuit board 7 abuts against the second end cover 5, the second buckle 891 rebounds and is clamped into the second clamping interface 74.

[0165] In some embodiments, as shown in Figure 1 and Figure 2As shown, the driving device 100 is connected with the connecting box 300 on the curtain rail 200, the connecting box 300 is internally provided with a pulley, the rail 200 is internally provided with a synchronous belt, the driving device 100 drives the end head 201 to slide on the rail 200 through the synchronous belt, thereby driving the curtain to open and close. Figure 2 As shown, the lower surface of the connecting box 300 is provided with a socket 301 and two arc-shaped connecting grooves 302 arranged around the socket 301, the two arc-shaped connecting grooves 302 are symmetrically arranged with the socket 301 as the center. The socket 301 is configured as an oblong shape, the output shaft 101 of the driving device 100 is shaped to fit the shape of the socket 301, the output shaft 101 is inserted into the socket 301, and power is transmitted to the pulley through the socket 301.

[0166] The end of the driving device 100 protrudes two arc-shaped lugs 23, the positions of the lugs 23 correspond to the arc-shaped connecting grooves 302, the two lugs 23 can rotate a certain angle with the output shaft 101 as the center, when the output shaft 101 is inserted into the socket 301, the two lugs 23 are inserted into the arc-shaped connecting grooves 302, the two lugs 23 are hung on the arc-shaped connecting grooves 302 by rotating a certain angle, thereby connecting the driving device 100 on the connecting box 300.

[0167] Further, the lower surface of the connecting box 300 is further provided with a plurality of insertion holes 304, the end of the driving device 100 protrudes two positioning columns 222, the positioning columns 222 are inserted into the insertion holes 304, to realize the positioning of the driving device 100 and the connecting box 300, and prevent the driving device 100 from falling off due to rotation relative to the connecting box 300. Further, the end of the driving device 100 extends a first positioning wall 213 upward around the edge, the lower surface of the connecting box 300 is provided with a second positioning wall 303, the second positioning wall 303 is embedded inside the first positioning wall 213, to improve the positioning reliability between the driving device 100 and the connecting box 300.

[0168] Further, as shown in Figure 3 and Figure 4 The first end cover 2 is fixedly connected to the end of the shell 1 by four long screws 11. The first end cover 2 includes an end cover bracket 21 and an end cover iron sheet 22, the end cover iron sheet 22 is arranged on the side of the end cover bracket 21 away from the shell 1, the long screws 11 pass through the end cover iron sheet 22 and the end cover bracket 21 to be fixedly connected to the shell 1. The end cover iron sheet 22 is embedded in the end cover bracket 21 and surrounded by the first positioning wall 213 of the end cover bracket 21. The connecting screw 25 passes through the end cover bracket 21 to be fixedly connected to the driving assembly 3, and the nut of the connecting screw 25 is hidden on the back of the end cover iron sheet 22.

[0169] The end cover support 21 is provided with a circular boss 214 at a position corresponding to the output shaft 101, and the end cover iron sheet 22 is provided with a matching hole 223 adapted to the circular boss 214, the circular boss 214 is embedded in the matching hole 223, and the output shaft 101 passes through the circular boss 214 to output power externally. A rotating part 27 is clamped between the end cover support 21 and the end cover iron sheet 22, the rotating part 27 includes a rotating ring 271 and a lever 272 extending outwardly from the rotating ring 271, two hanging ears 23 are fixed to the rotating ring 271, the end cover iron sheet 22 is provided with an arc-shaped hole 221, and the hanging ears 23 pass through the arc-shaped hole 221. The rotating ring 271 is sleeved on the circular boss 214 and can rotate based on the circular boss 214. The lever 272 is provided with an operating rod 24 perpendicularly at an end portion, the operating rod 24 passes through the end cover support 21, and a user can rotate the lever 272 by operating the operating rod 24 to drive the rotating ring 271 to rotate, so that the rotating ring 271 drives the hanging ears 23 to rotate.

[0170] As shown in Figure 5 , the end cover support 21 is provided with an arc-shaped operating hole 215 at a position corresponding to the operating rod 24, the operating rod 24 passes through the arc-shaped operating hole 215 and swings within the range of the arc-shaped operating hole 215. When the operating rod 24 swings to the right end of the arc-shaped operating hole 215, the two hanging ears 23 are in a first position, and when the operating rod 24 swings to the left end of the arc-shaped operating hole 215, the two hanging ears 23 are in a second position.

[0171] In the process of installing the driving device 100 to the connecting box 300, first, the operating rod 24 is swung to the right end of the arc-shaped operating hole 215, the hanging ears 23 are in the first position, then the output shaft 101 is inserted into the socket 301 of the connecting box 300, and the hanging ears 23 are inserted into the arc-shaped connecting groove 302 of the connecting box 300; next, the operating rod 24 is swung to the left end of the arc-shaped operating hole 215, the hanging ears 23 are rotated from the first position to the second position, at this time, the hanging ears 23 are hung on the inner wall of the arc-shaped connecting groove 302, so that the driving device 100 is connected to the connecting box 300.

[0172] In the process of dismounting the driving device 100 from the connecting box 300, the operating rod 24 is swung to the right end of the arc-shaped operating hole 215, the hanging ears 23 are rotated from the second position to the first position, the hanging ears 23 are no longer hung on the arc-shaped connecting groove 302, and then the driving device 100 can be dismounted.

[0173] Further, as shown in Figure 4 and Figure 7 , the operating rod 24 includes a rod sleeve 241, a rod core 242, and a spring 243 arranged between the rod sleeve 241 and the rod core 242, the rod core 242 passes through the spring 243 and the rod sleeve 241 and is riveted to the lever 272. AsFigure 7 As shown, the end of the rod core 242 away from the lever 272 is provided with a shaft head protruding to the side, and the inner wall of the rod sleeve 241 is provided with a collection opening near the end of the lever 272, and the spring 243 is limited between the shaft head and the collection opening. When the rod sleeve 241 is pulled away from the lever 272, the collection opening compresses the spring 243.

[0174] In Figure 7 , at this time, the lever 272 is in a vertical state, the rod core 242 is connected to the lever 272 through the arc-shaped operation hole 215, and the width of the arc-shaped operation hole 215 is slightly larger than the diameter of the rod core 242, so that the rod core 242 can swing in the arc-shaped operation hole 215. The width of the arc-shaped operation hole 215 is smaller than the outer diameter of the rod sleeve 241, so that the rod sleeve 241 cannot pass through the arc-shaped operation hole 215. As Figure 5 shown, the left end of the arc-shaped operation hole 215 is provided with a circular limiting hole 216, and the diameter of the limiting hole 216 is slightly larger than the diameter of the operating lever 24. When the rod sleeve 241 swings to the position opposite to the limiting hole 216, the rod sleeve 241 is embedded in the limiting hole 216, so that the limiting hole 216 limits the movement of the operating lever 24. The limiting hole 216 functions to lock the position of the operating lever 24 when the lug 23 is hung on the arc-shaped connecting groove 302, so as to avoid the lug 23 from being separated from the arc-shaped connecting groove 302. Specifically:

[0175] In the process of disassembling the driving device 100 from the connecting box 300, the rod sleeve 241 needs to be pulled away from the lever 272 first, so that the rod sleeve 241 is separated from the limiting hole 216, and then the operating lever 24 is swung to the right end of the arc-shaped operation hole 215, so that the lug 23 is no longer hung on the arc-shaped connecting groove 302. In the process of installing the driving device 100 on the connecting box 300, when the operating lever 24 is swung to the left end of the arc-shaped operation hole 215, the lug 23 is hung on the arc-shaped connecting groove 302, and the rod sleeve 241 is automatically clamped into the limiting hole 216 under the elastic force of the spring 243, and the limiting hole 216 locks the position of the operating lever 24, so as to avoid the lug 23 from being separated from the arc-shaped connecting groove 302.

[0176] In addition, it should be noted that the above-mentioned embodiments can be combined with each other, and the same or similar concepts or processes may not be described in some embodiments, that is, the technical solutions disclosed in the later embodiments (in the order of the text) should include the technical solutions disclosed in this embodiment and all the technical solutions in the previous embodiments.

[0177] Finally, it should be noted that: the above embodiments are used to illustrate the technical solutions of the present application, but not limited to them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A driving device, characterized in that, include: shell; The first end cap is fixedly connected to the end of the outer shell; A drive assembly is disposed inside the housing and fixedly connected to the first end cover. The drive assembly is connected to an output shaft, which passes through the first end cover to output power to the outside. The system also includes a rotation detection module for detecting rotation parameters at the output of the drive component. The rotation detection module includes a detection circuit board, which is positioned by the drive component to limit the degree of freedom of movement and rotation of the detection circuit board on the plane of the first surface, where the first surface is the surface of the detection circuit board facing the first end cover. The detection circuit board is clamped and fixed by the drive component and the first end cover.

2. The driving device according to claim 1, characterized in that, The drive assembly is provided with a first connecting portion facing the first end cover. The first connecting portion protrudes from the first end face of the drive assembly. The first end face is the surface of the drive assembly facing the first end cover. Wherein, the first connecting part is a threaded connecting part, and the first end cap is fixedly connected to the first connecting part by connecting screws; The detection circuit board has a positioning hole, and the first connecting part is inserted into the positioning hole to position the detection circuit board.

3. The driving device according to claim 2, characterized in that, The first connecting part includes multiple connecting posts, and the first end cap is fixedly connected to each of the connecting posts by connecting screws; The number of positioning holes is two, and the two positioning holes are respectively positioned by the connecting post to limit the degree of freedom of movement and rotation of the detection circuit board on the plane where the first surface is located.

4. The driving device according to claim 2, characterized in that, The first connecting part includes multiple connecting posts. The first end cap has an annular positioning wall protruding at the corresponding position of each connecting post. The annular positioning wall is sleeved on the corresponding connecting post to realize the positioning between the first end cap and the driving component. The first end cap is fixedly connected to each connecting post by connecting screws. The end of the annular positioning wall abuts against the detection circuit board, and the detection circuit board is clamped and fixed by the annular positioning wall and the driving assembly.

5. The driving device according to claim 2, characterized in that, The detection circuit board includes: The first plate is used to be clamped and fixed by the drive assembly and the first end cap; The second plate is integrally formed on the first plate and protrudes from the outer side of the drive assembly; The driving device further includes a first circuit board for electrically connecting the driving component to control the operation of the driving component; The first circuit board is connected to the second board via a flexible connector to receive the detection signal transmitted by the detection circuit board.

6. The driving device according to claim 5, characterized in that, The first end face is constructed as an annular surface, and the first plate includes a semi-annular plate to fit the first end face; The number of positioning holes is two, and the two positioning holes are respectively located at both ends of the first plate; the first end cover has an abutment wall protruding towards the detection circuit board, the abutment wall abuts against the detection circuit board, and the detection circuit board is clamped and fixed by the abutment wall and the first end face.

7. The driving device according to any one of claims 2-6, characterized in that, The drive assembly includes an output disc connected to the output shaft, and a clutch housing is provided on the outer side of the output disc. The first connecting part is disposed in the clutch housing. The output disk has multiple permanent magnets evenly arranged circumferentially, and the clutch housing has a magnetic sensing window that exposes a portion of the permanent magnets. The rotation detection module includes two Hall sensors, which are positioned at corresponding positions of the magnetic sensing window to convert magnetic field parameters into detection signals.

8. The driving device according to claim 7, characterized in that, The first end face is configured as the side of the clutch housing facing the first end cover; The Hall sensor is disposed on the second surface of the detection circuit board opposite to the first surface and is embedded in the magnetic sensing window, such that the first end face is attached to the detection circuit board, and the detection circuit board is clamped and fixed by the first end cover and the first end face.

9. The driving device according to claim 7, characterized in that, The outer shell is a tubular structure with open ends, and the first end cap and the second end cap are fixedly connected to the two ends respectively. The housing is further provided with a second limiting member and a first circuit board, the first circuit board being limited by the second limiting member to the second end cover; the drive assembly and the first circuit board are respectively installed from both ends of the housing; The detection circuit board transmits the detection signal to the first circuit board through a flexible connector, and the first circuit board obtains the rotation parameters of the output disk based on the detection signal.

10. The driving device according to claim 7, characterized in that, The outer casing is a tubular structure open at both ends. The drive assembly includes a columnar motor, a planetary gear reducer and a clutch arranged sequentially along a first direction. The columnar motor is located at the end of the drive assembly away from the first end cover. The first direction is the direction in which the columnar motor faces the first end cover. The cylindrical motor is fitted with a flexible buffer ring on its side, and the flexible buffer ring abuts against the side wall of the outer shell; The clutch includes a clutch housing, an output disc, a vane-shaped input component, a magnetic movable component, and an attraction disc. The input end of the clutch is connected to the vane-shaped input component. The output disc is provided with a rotation space. The vane-shaped input component and the magnetic movable component are both disposed inside the rotation space. The output disc is provided with a transmission groove on the side wall of the rotation space. When the leaf-shaped input component rotates within the rotation space, the leaf-shaped input component pushes the magnetic movable component to engage in the transmission groove, and the power of the leaf-shaped input component is transmitted to the output disk through the magnetic movable component; When the thrust exerted by the blade-shaped input component on the magnetic movable component is removed, the attraction disk attracts the magnetic movable component away from the transmission groove, thereby cutting off the power between the output disk and the blade-shaped input component. The output end of the cylindrical motor is connected to the input end of the planetary gear reducer, the output end of the planetary gear reducer is connected to the input end of the clutch, and the output disc of the clutch outputs power to the outside through the output shaft.

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