Driving device

Abstract

The utility model provides a driving device which comprises a tubular shell, and the two ends of the tubular shell are fixedly connected with a first end cover and a second end cover respectively. A driving assembly is arranged in the tubular shell, and one end of the driving assembly is fixedly connected to the first end cover; a second limiting piece and a first circuit board are further arranged in the tubular shell, and the second limiting piece is used for limiting the first circuit board; the driving assembly and the first circuit board are installed from the two ends of the tubular shell respectively. A detection circuit board is arranged between the driving assembly and the first end cover, the detection circuit board is electrically connected to the first circuit board through a flexible connecting piece, the flexible connecting piece deforms to be matched with the driving assembly during assembly, and the conductivity between the detection circuit board and the first circuit board is kept in any form of deformation. The driving device provided by the utility model is low in assembly difficulty and more stable in connection.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric drive technology 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 generally sets the rotation detection module at the output end, and the control circuit board is set at the end away from the output end, so that the distance between the rotation detection module and the control circuit board is far, and the positional relationship of the two does not correspond. This makes the electrical connection structure between the detection circuit board and the first circuit board complex, the assembly difficulty is high, and the connection stability is poor. UTILITY MODEL CONTENTS

[0004] The utility model relates to an electric drive technology field especially relates to a drive device.

[0005] The utility model relates to an electric drive technology field especially relates to a drive device.

[0006] The utility model relates to an electric drive technology field especially relates to a drive device.

[0007] The utility model relates to an electric drive technology field especially relates to a drive device.

[0008] The utility model discloses a drive device, wherein the first limiting piece is sleeved on the driving assembly away from the first end cover, is used for the radial support driving assembly, avoids driving assembly to sway, thereby prevents the columnar motor from impacting the tubular shell.

[0009] The utility model discloses a drive device, wherein the axial displacement of the first limiting piece is limited by the second limiting piece and the driving assembly, and the radial displacement of the first limiting piece is limited by the tubular shell, so that the freedom degree of displacement of the first limiting piece in each direction is limited.

[0010] The utility model discloses a drive device, wherein the extension direction of the axial support wall is towards the first end cover and slightly inclines to the tubular shell side wall, so as to facilitate the first limiting piece to be loaded into the end of the tubular shell along with the driving assembly.

[0011] The utility model discloses a drive device, wherein the axial support wall inclines outward, so that the axial support wall only abuts at the end on the tubular shell side wall, and the axial support wall can ensure that the upper, lower, left and right axial support walls can all abut on the tubular shell side wall through slight elastic deformation, thereby improving the support stability.

[0012] The utility model discloses a drive device, wherein the first wire is clamped into the wire groove from the side of the radial support part, so as to avoid that the first terminal cannot pass through the wire groove, and the wire groove can clamp the first wire, so as to lock the position and bending posture of the first wire, thereby avoiding damage to the first wire.

[0013] The utility model discloses a drive device, wherein the split hole extends to the end of the axial support wall, so as to divide the axial support wall into multiple sections, thereby making the deformation ability of the axial support wall stronger.

[0014] The utility model discloses a drive device, wherein when the drive device falls, the buffer hole and the axial support wall deform at the same time to weaken the impact force, thereby preventing damage to the columnar motor.

[0015] The utility model discloses a drive device, wherein the sleeve joint part is sleeved on the driving assembly through the trumpet mouth, so as to facilitate assembly.

[0016] In order to realize at least one of the above purposes, the utility model provides a kind of driving device, including tubular shell, the tubular shell two ends are respectively fixedly connected with first end cover and second end cover;The driving assembly is arranged in the tubular shell, and one end of the driving assembly is fixedly connected to the first end cover;Second limiting piece and first circuit board are further arranged in the tubular shell, and the first circuit board is electrically connected to the driving assembly;The second limiting piece is arranged in the second end cover, for limiting the first circuit board;The driving assembly and the first circuit board are respectively loaded from the two ends of the tubular shell;Detection circuit board is arranged between the driving assembly and the first end cover, Hall induction piece is arranged on the detection circuit board, and the Hall induction piece is used to detect the rotation parameter of the output end of the driving assembly, and the rotation parameter is used to determine the rotation direction and / or angle of the driving assembly;The detection circuit board is electrically connected to the first circuit board by flexible connecting piece, and the flexible connecting piece is deformed to adapt to driving assembly during assembly, and the conductivity between the detection circuit board and the first circuit board is maintained in any shape of deformation.

[0017] Further, the driving assembly is configured as a long strip structure, one end of which is fixedly connected to the first end cover, and the driving assembly forms a cantilever structure relative to the first end cover;First limiting piece is further arranged in the tubular shell, and the first limiting piece is sleeved on the end of the driving assembly away from the first end cover, for radially supporting the driving assembly;The second limiting piece is fixedly connected to the second end cover, and the axial direction of the first limiting piece is limited by the second limiting piece and the driving assembly.

[0018] Further, the second limiting piece and the first limiting piece are formed separately, the first limiting piece includes a sleeve part and a radial support part arranged around the sleeve part, the sleeve part is sleeved on the driving assembly, and the radial support part abuts against the inner wall of the tubular shell, so that the driving assembly is radially supported by the first limiting piece.

[0019] Further, the radial support part is integrally formed with the sleeve part, the radial support part comprises a radial support wall and an axial support wall, the radial support wall extends radially from the side of the sleeve part, and the axial support wall extends axially from the end of the radial support wall; the second limiting part is arranged in the second direction towards the first limiting part, the axial support wall extends towards the first end cover, and the extending direction is outwardly inclined relative to the second direction, and the included angle between the extending direction and the second direction is less than 10°; the flexible connecting part comprises at least one first wire, and the radial support part is provided with a wire groove for the first wire to pass through; the radial support wall is provided with at least two arc-shaped buffer holes, which provide space for elastic deformation of the radial support wall; and the axial support wall is provided with a plurality of axially extending segmentation holes, which extend to the end of the axial support wall to divide the axial support wall into multiple segments.

[0020] In some embodiments, the first limiting part is provided with a first abutting part towards the second limiting part, the second limiting part abuts against the first abutting part to limit the first limiting part from moving in the first axial direction; the sleeve part of the first limiting part is provided with a second abutting part at the position of the end of the driving assembly, the end of the driving assembly abuts against the second abutting part to limit the first limiting part from moving in the second axial direction, the second axial direction is opposite to the first axial direction; the sleeve part is configured as a sleeve ring, which is sleeved on the driving assembly; the second abutting part is configured as a limiting ring, which abuts against the end of the driving assembly; and the end of the driving assembly is provided with a second wire, which is connected to the first circuit board through the hollow part of the limiting ring.

[0021] In some embodiments, one end of the second limiting part away from the second end cover is provided with a first limiting part, and the first limiting part is integrally formed with the second limiting part; the first limiting part comprises a sleeve part and a radial support part around the sleeve part, the sleeve part is sleeved on the end of the driving assembly, and the radial support part abuts against the inner wall of the tubular shell to radially support the driving assembly by the first limiting part; the sleeve part is provided with a flared opening towards the driving assembly, the opening of the flared opening expands towards the driving assembly, and the sleeve part is sleeved on the driving assembly through the flared opening.

[0022] In some embodiments, the first circuit board is positioned by the second limiting member and the second end cover, the second limiting member is provided with a first slot, the first slot has a first insertion end close to the second end cover and a first stop end away from the second end cover, the first circuit board is inserted into the first slot by the first insertion end, and when the second limiting member is installed on the second end cover, the first circuit board is positioned between the first stop end and the second end cover.

[0023] Further, a second circuit board is further included, the second limiting member is provided with a second slot parallel to the first slot, the second slot has a second insertion end close to the second end cover and a second stop end away from the second end cover, the second circuit board is inserted into the second slot by the second insertion end, and when the second limiting member is installed on the second end cover, the second circuit board is positioned between the second stop end and the second end cover; the second circuit board carries a strong current circuit, the first circuit board carries a weak current circuit, the first circuit board is electrically connected with the second circuit board, and the second limiting member is provided with a partition plate between the first circuit board and the second circuit board.

[0024] In some embodiments, the second limiting member is integrally formed with the second end cover, and the first circuit board is positioned by the second limiting member and the second end cover.

[0025] Further, the second limiting member is provided with a third slot on each side of the first circuit board, an end of the third slot away from the second end cover is a third insertion end, the first circuit board is inserted into the third slot by the third insertion end, and the third insertion end is provided with a first buckle, and each side of the first circuit board is provided with a first clamping port.

[0026] The first circuit board is inserted into the third slot on each side, an end of the first circuit board abuts against the second end cover, and the first buckle is clamped in the first clamping port, so that the first circuit board is positioned by the third slot, the first buckle and the second end cover.

[0027] The tubular shell is further provided with a second circuit board inside, the second limiting member is provided with a fourth slot on each side of the second circuit board, and the fourth slot is parallel to the third slot; an end of the fourth slot away from the second end cover is a fourth insertion end, the second circuit board is inserted into the fourth slot by the fourth insertion end, the fourth insertion end is provided with a second buckle, and each side of the second circuit board is provided with a second clamping port correspondingly.

[0028] The second circuit board is inserted into the fourth slot on both sides, the end of the second circuit board abuts against the second end cover, and the second buckle is buckled to the second clamping port, so that the second circuit board is limited by the fourth slot, the second buckle and the second end cover.

[0029] 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.

[0030] 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

[0031] In order to more clearly illustrate the technical solutions of the embodiments of the utility model 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 utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0032] Figure 1 It is the structure schematic diagram of the driving device of an embodiment of the utility model being installed to the track;

[0033] Figure 2 It is the connection schematic diagram of the driving device and the connecting box of an embodiment of the utility model;

[0034] Figure 3 It is the assembly schematic diagram of the first end cover, the driving assembly, the detection circuit board and the tubular shell of an embodiment of the utility model;

[0035] Figure 4 It is the assembly schematic diagram of the first end cover, the driving assembly, the detection circuit board and the tubular shell of an embodiment of the utility model;

[0036] Figure 5 It is the schematic diagram of the rotating part relative to the end cover support of an embodiment of the utility model;

[0037] Figure 6 It is the 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 utility model;

[0038] Figure 7 It is Figure 6 The enlarged view of A part in Fig. 8;

[0039] Figure 8is the assembly schematic view of the end cover support, the driving assembly, the output shaft and the detection circuit board of one embodiment of the utility model;

[0040] Figure 9 is the assembly schematic view of the first end cover, the driving assembly, the output shaft and the detection circuit board of one embodiment of the utility model;

[0041] Figure 10 is the assembly schematic view of the driving assembly and the rotation detection module of one embodiment of the utility model;

[0042] Figure 11 is the explosion view of the clutch of one embodiment of the utility model;

[0043] Figure 12 is the sectional view of the clutch of one embodiment of the utility model;

[0044] Figure 13 is the explosion view of the driving assembly of one embodiment of the utility model;

[0045] Figure 14 is the assembly schematic view of the driving device of one embodiment of the utility model;

[0046] Figure 15 is the structural schematic view of the second end cover, the second limiting piece and the first circuit board in one embodiment of the utility model;

[0047] Figure 16 is the explosion view of the second end cover, the second limiting piece, the first circuit board, the second circuit board of one embodiment of the utility model;

[0048] Figure 17 is the sectional view of the second end cover, the second limiting piece, the first circuit board, the second circuit board of one embodiment of the utility model;

[0049] Figure 18 is the explosion view of the second end cover, the second limiting piece, the first circuit board, the second circuit board of one embodiment of the utility model;

[0050] Figure 19 is the structural schematic view of the driving assembly, the detection circuit board, the flexible connecting piece of one embodiment of the utility model;

[0051] Figure 20 is the sectional view of the driving assembly, the tubular shell and the flexible connecting piece of one embodiment of the utility model;

[0052] Figure 21 is the assembly schematic view of the driving assembly and the first limiting piece of one embodiment of the utility model;

[0053] Figure 22 is the sectional view of the first limiting piece and the tubular shell of one embodiment of the utility model;

[0054] Figure 23 is a structural schematic view of the driving device after hiding the tubular shell according to an embodiment of the present application;

[0055] Figure 24 is a structural schematic view of the driving device after hiding the tubular shell according to an embodiment of the present application;

[0056] Figure 25 is a sectional view of the first limiting member and the tubular shell according to an embodiment of the present application;

[0057] Figure 26 is a structural schematic view of the first limiting member and the second limiting member according to an embodiment of the present application;

[0058] Figure 27 is a structural schematic view of the second limiting member, the second end cover, the first circuit board and the second circuit board according to an embodiment of the present application;

[0059] Figure 28 is a sectional view of the second limiting member, the second end cover and the second circuit board according to an embodiment of the present application. DETAILED DESCRIPTION

[0060] In the description of the present application, the terms "inner", "outer", "horizontal", "vertical", "upper", "lower", "top", "bottom", "left", "right" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and do not require the present application to be constructed and operated in a particular orientation, therefore should not be understood as a limitation of the present application.

[0061] In the description of the present application, the terms "first", "second" are only for the purpose of description, and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features.

[0062] In the description of the present application, unless otherwise explicitly specified and limited, the terms "connection" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral; it can be mechanical connection, or electrical connection or can communicate with each other; it can be directly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0063] 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 of the technical personnel in the art, and 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 also not within the protection scope required by the present application.

[0064] In the prior art, the positioning structure and the limiting structure of the rotation detection module of the curtain motor have defects, which causes the rotation detection module to be easily damaged during assembly and disassembly, 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, and during assembly, the assembly worker inserts the rotation detection module into the buckle by pressing, which is not only inconvenient for assembly, but also has the risk of damaging the rotation detection module, and the rotation detection module is difficult to disassemble from the end cover and is also easily damaged during disassembly. 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 causes the position precision between the rotation detection module and the driving assembly to be not high, and affects the detection precision of the rotation detection module.

[0065] To solve the above problems, according to the first aspect of the present application, 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.

[0066] In some embodiments, as shown in Figure 1 The driving device 100 is used to drive the curtain to open and close. 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 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 connecting 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.

[0067] As shown in Figure 3 and Figures 8-10As shown, a feasible embodiment of the driving device 100 is given. The driving device 100 comprises a tubular 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 tubular shell 1; the driving assembly 3 is arranged inside the tubular 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 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.

[0068] Wherein, 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 of 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 of 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 mode 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 positioning through other modes.

[0069] 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.

[0070] 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 rotation detection module 4 more convenient to disassemble, and the rotation detection module 4 will not be damaged in the disassembly process.

[0071] It is worth noting that the utility model discloses an embodiment realizes the fixation of detection circuit board 41 through the cooperation of positioning and clamping, guarantees the positioning precision, improves the convenience of assembly, and when the assembly worker assembles, does not need to operate the fixation of detection circuit board 41, only needs to connect driving assembly 3 with first end cover 2, and detection circuit board 41 can be clamped and fixed, and the assembly step is simplified.

[0072] Further, as shown in the drawings, Figures 8-10 The first connecting portion 32 is protruded from the first end surface 33, and the first connecting portion 32 is inserted into the positioning hole 411 to position the detection circuit board 41. In the embodiment of the utility model, 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 set 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, and the detection circuit board 41 is stably and reliably clamped.

[0073] The first connecting portion 32 is protruded from the first end surface 33, and the first connecting portion 32 is inserted into the positioning hole 411 to position the detection circuit board 41. In the embodiment of the utility model, 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 set 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, and the detection circuit board 41 is stably and reliably clamped. Figure 10 The first connecting portion 32 is protruded from the first end surface 33, and the first connecting portion 32 is inserted into the positioning hole 411 to position the detection circuit board 41. In the embodiment of the utility model, 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 set 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, and the detection circuit board 41 is stably and reliably clamped.

[0074] In some embodiments, as shown in the drawings, 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.

[0075] 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.

[0076] 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 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.

[0077] 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.

[0078] 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.

[0079] 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.

[0080] 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.

[0081] 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.

[0082] 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.

[0083] 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 tubular shell 342, and the first connecting part 32 is arranged on the clutch tubular shell 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 tubular shell 342, the clutch tubular shell 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.

[0084] 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 tubular shell 342 is provided with a magnetic sensing window 3421, and the magnetic sensing window 3421 exposes a part of the permanent magnets 343; 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 tubular shell 342 is provided with the magnetic sensing window 3421, which can make the Hall sensor closer to the permanent magnet 343, so that the Hall sensor 42 senses 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.

[0085] The output disk 341 has a second end face 3411 facing the first end cover 2. The second end face 3411 is provided with a magnet mounting groove, and the permanent magnet 343 is embedded in the magnet mounting groove. The end face of the permanent magnet 343 is flush with the second end face 3411. The second end face 3411 is annular, and there are twelve permanent magnets 343, which are evenly arranged on the second end face 3411.

[0086] Furthermore, such as Figure 10 As shown, the first end face 33 is configured as the side of the clutch tubular housing 342 facing the first end cover 2; the Hall sensor 42 is disposed on the second surface of the detection circuit board 41 opposite to the first surface and is embedded in the magnetic sensing window 3421, such that the first end face 33 is in contact with 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 face 33. The Hall sensor 42 is embedded in the magnetic sensing window 3421, which brings the Hall sensor closer to the permanent magnet 343, thereby improving the accuracy of the Hall sensor 42 in sensing the magnetic field. The second surface can be understood as the side of the detection circuit board 41 facing the drive assembly 3, and the second surface is in contact with the first end face 33, so that the detection circuit board 41 is clamped more stably.

[0087] In some embodiments, the distance between two Hall sensors 42 is greater than the distance between two adjacent permanent magnets 343, but less than twice the distance between two adjacent permanent magnets 343.

[0088] In some embodiments, such as Figure 14 As shown, the tubular outer shell 1 is constructed as a tubular structure open at both ends, with the first end cap 2 and the second end cap 5 fixedly connected to both ends respectively. The tubular outer shell 1 also contains a second limiting member 8 and a first circuit board 6, with the first circuit board 6 being limited by the second limiting member 8 to the second end cap 5. The driving assembly 3 and the first circuit board 6 are respectively inserted from both ends of the tubular outer shell 1. The first end cap 2 and the second end cap 5 are detachably fixed to both ends of the tubular outer shell 1. In one embodiment, the tubular outer shell 1 is constructed as a square tube with a square cross-section, and threaded holes are provided at the four corners of the square. Both the first end cap 2 and the second end cap 5 are fixed to the tubular outer shell 1 using long screws 11.

[0089] The second limiting member 8 can be integrally formed with the second end cap 5, snapped onto the second end cap 5, fixed to the second end cap 5 by screws, or connected to the second end cap 5 in other ways. The first circuit board 6 is limited by the second limiting member 8 and the second end cap 5. The drive assembly 3 and the first circuit board 6 are enclosed inside the tubular housing 1 by the first end cap 2 and the second end cap 5.

[0090] In this embodiment of the utility model, the drive assembly 3 and the first circuit board 6 are respectively installed from both ends of the tubular housing 1. This assembly has the following advantages: 1. Improved assembly efficiency; 2. Convenient maintenance and replacement, as both ends of the tubular housing 1 can be disassembled and maintained separately without disassembling the entire device; 3. The first circuit board 6 and the clutch 34 are located at both ends of the tubular housing 1, which avoids electromagnetic interference from the permanent magnet 343 on the clutch tubular housing 342 to the first circuit board 6.

[0091] Furthermore, the detection circuit board 41 transmits the detection signal to the first circuit board 6 via the flexible connector 69, and the first circuit board 6 obtains the rotation parameters of the output disk 341 based on the detection signal. Since the detection circuit board 41 and the first circuit board 6 are respectively installed from both ends of the tubular housing 1, the distance between them changes significantly during assembly. In this embodiment, the flexible connector 69 deforms to compensate for the change in distance between the detection circuit board 41 and the first circuit board 6 during assembly, ensuring a stable connection. Moreover, thanks to the torsion and bending capabilities of the flexible connector 69, the positional design of the detection circuit board 41 and the first circuit board 6 is more flexible.

[0092] The flexible connector 69 can be understood as a flexible, conductive connector, such as a wire or ribbon cable. In one embodiment, the detection circuit board 41 is provided with four first solder holes 414, and the flexible connector 69 includes four first wires. One end of each first wire is soldered to the first solder hole 414, and the other end is inserted into the first connector 61 on the first circuit board 6 through a first terminal 691, thereby enabling the detection circuit board 41 to conduct electricity with the first circuit board 6.

[0093] In some embodiments, such as Figure 14 and Figure 8 As shown, the tubular outer shell 1 is constructed as a tubular structure open at both ends. The drive assembly 3 includes a cylindrical motor 36, a planetary gear reducer 35, and a clutch 34 arranged sequentially along a first direction. The cylindrical motor 36 is located at the end of the drive assembly 3 away from the first end cover 2. The first direction is the direction in which the cylindrical motor 36 faces the first end cover 2. The first direction has already been... Figure 14 The bid was successful.

[0094] like Figure 11As shown, the clutch 34 includes the clutch tubular 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.

[0095] 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.

[0096] 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.

[0097] In this configuration, both magnetic movable parts 345 can be simultaneously engaged in the transmission groove 3413, or only one of them can be engaged in the transmission groove 3413. The blade-shaped input part 344 drives the output disk 341 to rotate via the magnetic movable part 345 to transmit power. When the blade-shaped input part 344 stops rotating, the magnetic attraction force on the magnetic movable part 345 is insufficient to disengage from the transmission groove 3413, and the magnetic movable part 345 remains clamped between the blade-shaped input part 344 and the transmission groove 3413. When the blade-shaped input part 344 reverses by a certain angle or the output disk 341 is subjected to an external force to rotate by a certain angle in the previous direction, a gap is created between the transmission groove 3413 and the magnetic movable part 345. Only then can the magnetic movable part 345 disengage from the transmission groove 3413 under the action of magnetic attraction, thereby cutting off the power between the output disk 341 and the blade-shaped input part 344.

[0098] A plastic friction disc 347 is disposed between the attraction disc 346 and the magnetic movable component 345. The attraction disc 346 is embedded in the side of the friction disc 347 opposite to the magnetic movable component 345. The magnetic movable component 345 is in contact with the friction disc 347 and slides on the surface of the friction disc 347. The surface of the friction disc 347 is relatively smooth, which reduces the frictional resistance of the magnetic movable component 345, thereby allowing the magnetic movable component 345 to detach from the transmission groove 3413 under the attraction of the attraction disc 346.

[0099] like Figure 11 As shown, the planetary gear reducer 35 includes a third reducer tubular housing 354, and a clutch tubular housing 342 is snapped onto the side of the third reducer tubular housing 354. A cylindrical clutch 34 cavity is formed between the clutch tubular housing 342 and the third reducer tubular housing 354. The suction disc 346, friction disc 347, vane-shaped input component 344, magnetic moving component 345, and output disc 341 are all accommodated within the clutch 34 cavity. A ring-shaped connecting wall 3541 extends from the sidewall of the third reducer tubular housing 354 towards the clutch tubular housing 342. The clutch tubular housing 342 is fitted onto the ring-shaped connecting wall 3541, and the output disc 341 is embedded inside the ring-shaped connecting wall 3541. Figure 12 As shown, the clutch tubular housing 342, the third reducer tubular housing 354, and the output disc 341 are nested together. The side of the output disc 341 is radially limited by the annular connecting wall 3541, making the rotation of the output disc 341 more stable.

[0100] like Figure 6 As shown, the friction disc 347 abuts against the tubular housing 354 of the third reducer on the left and against the output disc 341 on the right. 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 tubular housing 354 of the third reducer.

[0101] 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.

[0102] The planetary gear reducer 35 further includes a first reducer tubular housing 352, a second reducer tubular 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.

[0103] The input shaft 351 of the reducer is machined with a first-stage sun gear 3511, and the inner wall of the tubular housing 353 of the second reducer 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 with each other 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.

[0104] 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 tubular housing 354 of the third reducer. 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.

[0105] Furthermore, such as Figure 13As shown, one end of the first reducer tubular housing 352 is fixed to the columnar motor 36 by screws, and the other end is snapped onto the side of the third reducer tubular housing 354. The second reducer tubular housing 353 is disposed inside the first reducer tubular housing 352. An external gear 3531 is provided at the end of the second reducer tubular housing 353 facing the third reducer tubular housing 354. The external gear 3531 is embedded in the second-stage internal gear ring to achieve circumferential positioning between the second reducer tubular housing 353 and the third reducer tubular housing 354.

[0106] Furthermore, such as Figure 6 As shown, the end of the first-stage sun gear 3511 is provided with a first positioning boss, which is inserted into the first positioning groove of the first planetary carrier, making the rotation of the reducer input shaft 351 more stable and preventing tilting. The end of the second-stage sun gear 3551 is provided with a second positioning boss, which is inserted into the second positioning groove of the second planetary carrier, making the first-stage planetary carrier 355 rotate stably.

[0107] Furthermore, such as Figure 11 and Figure 10 As shown, the output disc 341 of the clutch 34 outputs power externally through the output shaft 101. A cross-shaped third keyway 3415 is provided on the side of the output disc 341 facing away from the planetary gear reducer 35. A third key shaft is provided at one end of the output shaft 101, and the third key shaft is embedded in the third keyway 3415 to achieve power transmission between the two. The output disc 341 is provided with an output boss 3414, and the third keyway 3415 is located on the output boss 3414. The clutch tubular housing 342 has a clutch output hole 3422, through which the output boss 3414 passes to output power externally. The clutch output hole 3422 is connected to the magnetic sensing window 3421.

[0108] like Figure 14 As shown, because the drive assembly 3 is elongated and only one end is fixedly connected to the first end cover 2, the drive assembly 3 and the first end cover 2 form a cantilever beam-like structure. However, the heavy columnar motor 36 is located at the end furthest from the first end cover 2, causing the drive assembly 3 to easily sway. When the drive device 100 falls, the drive assembly 3 sways significantly, and the columnar motor 36 may impact the side wall of the tubular outer shell 1, causing damage to the columnar motor 36 or the tubular outer shell 1. To solve this problem, in one embodiment, as... Figure 19 and Figure 20As shown, a flexible buffer ring 362 is fitted onto the side of the cylindrical motor 36. The flexible buffer ring 362 abuts against the side wall of the tubular outer shell 1, providing lateral cushioning for the cylindrical motor 36 and preventing it from impacting the side wall of the tubular outer shell 1, thus avoiding damage to the cylindrical motor 36 or the tubular outer shell 1. The flexible buffer ring 362 is a flexible ring structure and can be made of foam, rubber, silicone, or other flexible materials.

[0109] In one embodiment, the flexible buffer ring 362 is made of foam and is circular in shape with an inner diameter slightly smaller than that of the cylindrical motor 36, so that there is an interference fit between the flexible buffer ring 362 and the cylindrical motor 36 to prevent the flexible buffer ring 362 from falling off.

[0110] Furthermore, such as Figure 20 As shown, the outer diameter of the flexible buffer ring 362 is slightly larger than the width of the inner wall of the tubular outer shell 1, so that there is an interference fit between the two sides of the flexible buffer ring 362 and the tubular outer shell 1, and the buffering effect of the flexible buffer ring 362 is better.

[0111] like Figure 20 and Figure 19 As shown, the cross-section of the inner cavity of the tubular outer shell 1 is rectangular. The inner cavity of the tubular outer shell 1 has wiring space above and below the flexible buffer ring 362, through which the flexible connector 69 passes. Thanks to the flexible buffer ring 362 separating the inner cavity of the tubular outer shell 1 into wiring space, the flexible connector 69 can only route its wiring from the top and bottom sides of the columnar motor 36, and cannot reach the left and right sides of the columnar motor 36. Therefore, when the drive device 100 falls, the left and right swaying of the columnar motor 36 will not squeeze the flexible connector 69, preventing damage to the flexible connector 69. Furthermore, the sufficient space above and below the columnar motor 36 means that the vertical swaying of the columnar motor 36 is insufficient to squeeze the flexible connector 69, thus preventing damage to the flexible connector 69.

[0112] It is worth mentioning that, because the drive assembly 3 and the first end cover 2 form a cantilever beam-like structure, if the drive assembly 3 shakes excessively when the drive device 100 falls, there is a risk of breakage at the connection between the drive assembly 3 and the first end cover 2. The flexible buffer ring 362 reduces the shaking amplitude of the drive assembly 3 to a certain extent, thus lowering the risk of breakage at the connection. Furthermore, as... Figure 9 As shown, the annular positioning wall 211 is sleeved on the connecting post 321, which can enhance the structural strength of the connection and prevent the connection from breaking. Furthermore, the first end cap 2 is provided with multiple reinforcing ribs on the outside of the annular positioning wall 211 to enhance the structural strength of the annular positioning wall 211 and further prevent the connection from breaking.

[0113] Other technical details of the drive device 100 will be described in detail in the drive device 100 provided in the second aspect of this utility model. The drive device 100 provided in the first aspect of this utility model has the same structure as the drive device 100 provided in the second aspect of this utility model.

[0114] In existing curtain motors, the rotation detection module is typically located at the output end, while the control circuit board is located at the end furthest from the output end. This results in a significant distance between the rotation detection module and the control circuit board, and their positions do not correspond. This complicates the electrical connection structure between the detection circuit board and the control circuit board, increases assembly difficulty, and leads to poor connection stability.

[0115] To solve the above problems, according to a second aspect of the present invention, a driving device 100 is provided, such as... Figures 1-28 As shown, the driving device 100 provided by this utility model will be specifically explained. For example... Figure 14 As shown, the driving device 100 includes a tubular outer shell 1, with a first end cap 2 and a second end cap 5 fixedly connected to both ends of the tubular outer shell 1, respectively. A driving assembly 3 is disposed inside the tubular outer shell 1, with one end of the driving assembly fixedly connected to the first end cap 2. A second limiting member 8 and a first circuit board 6 are also disposed inside the tubular outer shell 1, with the first circuit board 6 electrically connected to the driving assembly 3. The second limiting member 8 is disposed on the second end cap 5 and is used to limit the first circuit board 6. The driving assembly 3 and the first circuit board 6 are respectively inserted from both ends of the tubular outer shell 1. The technical details of the tubular outer shell 1, driving assembly 3, first end cap 2, second end cap 5, second limiting member 8, and first circuit board 6 have been described in detail in the driving device 100 provided in the first aspect, and will not be repeated here.

[0116] In this embodiment of the utility model, the drive assembly 3 and the first circuit board 6 are respectively installed from both ends of the tubular housing 1. This assembly has the following advantages: 1. Improved assembly efficiency; 2. Convenient maintenance and replacement, as both ends of the tubular housing 1 can be disassembled and maintained separately without disassembling the entire device; 3. The first circuit board 6 and the clutch 34 are located at both ends of the tubular housing 1, which avoids electromagnetic interference from the permanent magnet 343 on the clutch tubular housing 342 to the first circuit board 6.

[0117] Furthermore, such as Figure 8As shown, a detection circuit board is disposed between the driving component and the first end cover. A Hall effect sensor is disposed on the detection circuit board. The Hall effect sensor is used to detect the rotation parameters at the output end of the driving component. The rotation parameters are used to determine the rotation direction and / or angle of the driving component. The detection circuit board is electrically connected to the first circuit board via a flexible connector. During assembly, the flexible connector adapts to the deformation of the driving component and maintains conductivity between the detection circuit board and the first circuit board under any deformation state. The technical details of the detection circuit board and the Hall effect sensor have been described in detail in the driving device 100 provided in the first aspect, and will not be repeated here.

[0118] The flexible connector 69 can be understood as a flexible, conductive connector, such as a wire or ribbon cable. In one embodiment, the detection circuit board 41 is provided with four first solder holes 414, and the flexible connector 69 includes four first wires. One end of each first wire is soldered to the first solder hole 414, and the other end is inserted into the first connector 61 on the first circuit board 6 through a first terminal 691, thereby enabling the detection circuit board 41 to conduct electricity with the first circuit board 6.

[0119] The deformation of the flexible connector 69 to adapt to the drive assembly 3 can be understood as the flexible connector 69 undergoing torsion, bending, or other deformations along the side of the drive assembly 3. The flexible connector 69 adapts to the changes in the shape of the side of the drive assembly 3, thus solving the problems of high assembly difficulty and poor connection stability caused by the mismatch in the positional relationship between the detection circuit board 41 and the first circuit board 6. Furthermore, even when the positions of the detection circuit board 41 and the first circuit board 6 are mismatched, the flexible connector 69 can torsion and bend to ensure a stable connection between the two, reducing assembly difficulty and making the positional design of the detection circuit board 41 and the first circuit board 6 more flexible.

[0120] In addition, since the detection circuit board 41 and the first circuit board 6 are respectively installed from both ends of the tubular outer shell 1, the distance between them changes significantly during the assembly process. In this embodiment, the flexible connector 69 compensates for the change in the distance between the detection circuit board 41 and the first circuit board 6 during the assembly process by deformation, so as to ensure a stable connection between the two.

[0121] In the following exemplary embodiments, the flexible connector 69 undergoes deformation adapted to the drive assembly 3, specifically as follows:

[0122] In some embodiments, such as Figure 14As 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 tubular outer shell 1. The flexible connector 69 passes through the radial support portion 92 of the first limiting member 9 and then bends upward. The first terminal 691 is inserted into the first connector 61.

[0125] In other embodiments, the flexible connector 69 can undergo other adaptive deformations according to the shape of the drive assembly 3 to ensure a stable connection between the detection circuit board 41 and the first circuit board 6.

[0126] exist Figure 14 In the embodiment shown, the cross-section of the inner cavity of the tubular outer shell 1 is rectangular, and its height in the vertical direction is greater than its width in the horizontal direction. 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 drive device 100 in the first direction.

[0127] like Figure 14 and Figure 15As shown, the first circuit board 6, facing the drive assembly 3, is provided with a first connector 61, a second connector 62, and a third connector 63 arranged sequentially from top to bottom. The flexible connector 69 is plugged into the first connector 61 via a first terminal 691. The tail of the columnar motor 36 is connected to a second terminal 363, which is plugged into the second connector 62. The columnar motor 36 is connected to the first circuit board 6 via the second terminal 363. The tubular housing 1 also contains a second circuit board 7, on which a fourth connector 71 is provided. The fourth connector 71 is connected to the third connector 63 via a third wire 72, thereby enabling the second circuit board 7 to communicate with the first circuit board 6.

[0128] Furthermore, the length of the flexible connector 69 is L1, and the distance between the detection circuit board 41 and the first circuit board 6 is L2. Therefore, L1 / 5 ≤ L1 - L2 ≤ L1 / 2, to accommodate the deformation of the flexible connector 69 during assembly. During assembly, the drive assembly 3 is first installed on the first end cap 2, and then the drive assembly 3 is placed into the tubular housing 1, with the first end cap 2 fixed to the tubular housing 1. Thanks to the length L1 of the flexible connector 69 satisfying L1 - L2 ≥ L1 / 5, the first terminal 691 can pass from one end of the tubular housing 1 to the other, facilitating the insertion of the first terminal 691 into the first socket 61 of the first circuit board 6. Subsequently, the first circuit board 6 and the second limiting member 8 are placed into the tubular housing 1, and finally, the second end cap 5 is installed at the other end of the tubular housing 1. In an exemplary embodiment, the length of the flexible connector 69 is L1 = 235 mm, the distance between the detection circuit board 41 and the first circuit board 6 is L2 = 148 mm, and the length of the tubular shell 1 in the first direction is L3 = 188 mm.

[0129] Furthermore, such as Figures 15-18 The diagram illustrates the structure of the first circuit board 6, the second circuit board 7, the second limiting member 8, and the second end cap 5. Figure 16 As shown, the second limiting member 8 is fixedly connected to the second end cover 5. 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 16The 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.

[0130] 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.

[0131] 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.

[0132] 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.

[0133] 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 17The 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.

[0134] 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.

[0135] 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 tubular outer shell 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 outside of the high-voltage cover 84. The inner wall of the second end cap 5 has end cap buckles 51 at the corresponding positions of the first snap-fit ​​protrusions 85 and the second snap-fit ​​protrusions 86. Each end cap 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 cap 5. Further, after the second limiting member 8 is snapped and fixed to the second end cap 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 cap buckles 51 from loosening.

[0136] In some embodiments, such as Figure 16 As shown, the second end cover 5 is provided with a button 52, and the first circuit board 6 is provided with an electronic switch 68 at the position corresponding to the button 52. 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 light 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.

[0137] The electronic switch 68 and indicator light 64 are disposed at the end of the first circuit board 6, and the trigger portion 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, or a detection switch. In one embodiment, the electronic switch 68 is a tactile switch. The indicator light 64 can be an LED.

[0138] Furthermore, such as Figure 16 As shown, a wireless communication module 65 is provided on the first circuit board 6. The wireless communication module 65 is located at one end near the second end cover 5 to prevent the tubular outer shell 1 from shielding the wireless signal. The first circuit board 6 has a cutout at the position corresponding to the antenna of the wireless communication module 65 to avoid the first circuit board 6 blocking the wireless signal.

[0139] like Figure 14 As shown, the wireless communication module 65 is positioned near the upper side of the first circuit board 6, so that after the drive device 100 is mounted 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, resulting in a stronger wireless signal. Specifically, as... Figure 1 As shown, the connecting box 300 is located at the end of the track 200, generally near the wall. The drive device 100 is connected to the connecting box 300 of the track 200 via a hanging lug 23. The drive device 100 is equipped with an operating lever 24 for controlling the rotation of the hanging lug 23. The operating lever 24 is located on the side near the track 200, such as... Figure 14 As shown, the wireless communication module 65 and the operating lever 24 are offset to the same side, combined with 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 blocked and weakened by the wall.

[0140] Furthermore, such as Figure 14 As shown, the drive assembly 3 is constructed as a long strip structure, with one end fixedly connected to the first end cover 2, forming a cantilever structure between the drive assembly 3 and the first end cover 2. This cantilever structure can be understood as similar to a cantilever beam. This structure is prone to swaying at the end furthest from the first end cover 2. Furthermore, because the heavier columnar motor 36 is located at the end furthest from the first end cover 2, the drive assembly 3 is even more prone to swaying. When the drive device 100 falls, significant swaying of the drive assembly 3 could cause the columnar motor 36 to impact the side wall of the tubular outer shell 1, resulting in damage to either the columnar motor 36 or the tubular outer shell 1. Moreover, if the swaying amplitude of the drive assembly 3 is too large, there is a risk of breakage at the connection point between the drive assembly 3 and the first end cover 2.

[0141] exist Figures 19-20 In the illustrated embodiment, the flexible buffer ring 362 provides lateral cushioning for the cylindrical motor 36, preventing the cylindrical motor 36 from impacting the side wall of the tubular housing 1 and causing damage to the cylindrical motor 36 or the tubular housing 1. Furthermore, the flexible buffer ring 362 reduces the sway amplitude of the drive assembly 3 to a certain extent, lowering the risk of breakage at the connection points.

[0142] In other embodiments, such as Figures 21-26 As shown, two other feasible implementation methods are provided. A first limiting member 9 is provided inside the tubular outer shell 1. The first limiting member 9 is sleeved on the end of the drive assembly 3 furthest from the first end cap 2, and is used to radially support the drive assembly 3, preventing it from shaking and thus preventing the columnar motor 36 from impacting the tubular outer shell 1. Furthermore, the first limiting member 9 reduces the shaking amplitude of the drive assembly 3, preventing breakage of the connection portion to the first end cap 2.

[0143] like Figure 22 and Figure 25 As shown, in these two embodiments, the first limiting member 9 abuts against the inner wall of the tubular outer shell 1 from the top, bottom, left and right, so that the first limiting member 9 provides more stable radial support for the columnar motor 36.

[0144] like Figures 21-23 As shown in the illustration, in a feasible embodiment, the second limiting member 8 is fixedly connected to the second end cap 5, and the axial direction of the first limiting member 9 is jointly limited by the second limiting member 8 and the driving assembly 3. Since the first limiting member 9 is sleeved on the driving assembly 3, the axial direction of the first limiting member 9 can be understood as the axial direction of the driving assembly 3. The axial displacement of the first limiting member 9 is jointly limited by the second limiting member 8 and the driving assembly 3, and the radial displacement of the first limiting member 9 is limited by the tubular outer shell 1, thus restricting the displacement freedom of the first limiting member 9 in all directions. The first limiting member 9 achieves its limiting function through the limiting action between parts, simplifying the limiting structure and improving assembly efficiency.

[0145] Since the drive assembly 3 and the second limiting member 8 are respectively installed from both ends of the tubular outer shell 1, in order to avoid interference in the axial direction of the first limiting member 9, the drive assembly 3, and the second limiting member 8, in some embodiments, such as Figure 23 As shown, the axial direction of the first limiting member 9 is not completely limited, and there is about 1 mm of axial movement space. As long as the first limiting member 9 cannot be disengaged from the drive assembly 3, it is fine.

[0146] Furthermore, such as Figure 21 and Figure 22 As shown, the second limiting member 8 and the first limiting member 9 are separately formed. The first limiting member 9 includes a sleeve portion 91 and a radial support portion 92 disposed around the sleeve portion 91. The sleeve portion 91 is sleeved on the drive assembly 3, and the radial support portion 92 abuts against the inner wall of the tubular outer shell 1, so that the drive assembly 3 is radially supported by the first limiting member 9.

[0147] Furthermore, 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.

[0148] like Figure 23 As shown, the direction of the second limiting member 8 toward the first limiting member 9 is designated as the second direction. The axial support wall 922 extends toward the first end cap 2, and the extension direction is inclined outward relative to the second direction. The angle between the extension direction and the second direction is less than 10°, that is, the extension direction of the axial support wall 922 is toward the first end cap 2 and slightly inclined toward the side wall of the tubular housing 1, so that the first limiting member 9 can be inserted into the tubular housing 1 from the left end along with the driving assembly 3. Figure 22 As shown, the axial support wall 922 is inclined outward so that only its end abuts against the side wall of the tubular 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 tubular outer shell 1, improving support stability. In one embodiment, the second direction is the same as the first direction, and the second direction has already been... Figure 23 The bid was successful.

[0149] Furthermore, such as Figure 22 As shown, the flexible connector 69 includes at least one first conductor, and the radial support portion 92 has a conductor groove 923 for the first conductor to pass through; Figure 23 As 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.

[0150] 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.

[0151] like Figure 22As 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.

[0152] 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.

[0153] 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.

[0154] Furthermore, such as Figure 21 and Figure 23 As 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.

[0155] 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.

[0156] In another feasible embodiment, such as Figures 24-26As 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 is integrally formed with the second limiting member 8. 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 tubular outer shell 1 so that the driving assembly 3 is radially supported by the first limiting member 9.

[0157] Because the first limiting member 9 and the second limiting member 8 are both fixed to the second end cap 5, the first limiting member 9 and the driving assembly 3 are respectively inserted from both ends of the tubular 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.

[0158] 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.

[0159] like Figure 24 As 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 tubular outer shell 1, so that the first limiting member 9 can be inserted into the tubular outer shell 1 from the right end along with the second limiting member 8. The inclination of the axial support wall 922 toward the side wall of the tubular outer shell 1 ensures that only the end of the axial support wall 922 abuts against the side wall of the tubular 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 tubular outer shell 1, thereby improving the support stability.

[0160] 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 16The 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.

[0161] 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.

[0162] 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.

[0163] Furthermore, a first mounting notch 882 is provided between the third slot 88 and the first buckle 881. The first circuit board 6 has a first protrusion 66 on both sides near the second end cover 5. The first protrusion 66 protrudes laterally from the first circuit board 6 and is inserted into the third slot 88 through the first mounting notch 882. A first bevel is provided between the first protrusion 66 and the first card interface 67. During the process of the first circuit board 6 being inserted into the third slot 88, the first buckle 881 is pushed open to both sides by the first bevel. When the first circuit board 6 abuts against the second end cover 5, the first buckle 881 springs back and snaps into the first card interface 67.

[0164] Furthermore, such as Figure 27 and Figure 28As shown, the second limiting member 8 is provided with a fourth slot 89 on both sides of the second circuit board 7, and the fourth slot 89 is parallel to the third slot 88; the end of the fourth slot 89 away from the second end cap 5 is the fourth insertion end, and the second circuit board 7 is inserted into the fourth slot 89 through 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 card interface 74 on both sides; the second circuit board 7 is inserted into the fourth slot 89 on both sides, the end of the second circuit board 7 abuts against the second end cap 5, and the second buckle 891 is engaged with the second card interface 74, so that the second circuit board 7 is limited by the fourth slot 89, the second buckle 891 and the second end cap 5.

[0165] Furthermore, a second mounting notch 892 is provided between the fourth slot 89 and the second buckle 891. A second protrusion 75 is provided on both sides of the second circuit board 7 at one end near the second end cover 5. The second protrusion 75 protrudes laterally from the second circuit board 7 and is inserted into the fourth slot 89 through the second mounting notch 892. A second bevel is provided between the second protrusion 75 and the second card interface 74. During the process of the second circuit board 7 being inserted into the fourth slot 89, the second buckle 891 is pushed open to both sides by the second bevel. When the second circuit board 7 abuts against the second end cover 5, the second buckle 891 springs back and snaps into the second card interface 74.

[0166] In some embodiments, such as Figure 1 and Figure 2 As shown, the drive unit 100 is connected to the connecting box 300 on the curtain track 200. The connecting box 300 contains a pulley, and the track 200 contains a timing belt. The drive unit 100 drives the end 201 of the timing belt to slide on the track 200, thereby opening and closing the curtains. 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 constructed in a flat and elongated shape. The output shaft 101 of the drive device 100 is adapted to 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.

[0167] Two arc-shaped lugs 23 extend from the end of the drive device 100. The position of the lugs 23 corresponds to the arc-shaped connecting groove 302. The two lugs 23 can rotate a certain angle around the output shaft 101. After the output shaft 101 is inserted into the socket 301, the two lugs 23 are inserted into the arc-shaped connecting groove 302. The two lugs 23 rotate a certain angle and hook onto the arc-shaped connecting groove 302, thereby connecting the drive device 100 to the connecting box 300.

[0168] Furthermore, the lower surface of the connecting box 300 is provided with multiple insertion holes 304, and the end of the driving device 100 is provided with two positioning posts 222. The positioning posts 222 are inserted into the insertion holes 304 to achieve positioning of the driving device 100 and the connecting box 300, preventing the driving device 100 from rotating relative to the connecting box 300 and falling off. Furthermore, the end of the driving device 100 extends upward from the edge to form a first positioning wall 213, and 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.

[0169] Furthermore, such as Figure 3 and Figure 4 As shown, the first end cap 2 is fixedly connected to the end of the tubular outer shell 1 by four long screws 11. The first end cap 2 includes an end cap bracket 21 and an end cap sheet 22. The end cap sheet 22 is disposed on the side of the end cap bracket 21 facing away from the tubular outer shell 1. The long screws 11 pass through the end cap sheet 22 and the end cap bracket 21 and are fixedly connected to the tubular outer shell 1. The end cap sheet 22 is embedded in the end cap bracket 21 and is surrounded by the first positioning wall 213 of the end cap bracket 21. The connecting screw 25 passes through the end cap bracket 21 and is fixedly connected to the drive assembly 3. The nut of the connecting screw 25 is hidden on the back of the end cap sheet 22.

[0170] The end cap bracket 21 has a circular boss 214 at a position corresponding to the output shaft 101. The end cap sheet 22 has a mating hole 223 that fits the circular boss 214. The circular boss 214 is inserted into the mating hole 223, and the output shaft 101 passes through the circular boss 214 to output power. A rotating part 27 is sandwiched between the end cap bracket 21 and the end cap sheet 22. The rotating part 27 includes a rotating ring 271 and a lever 272 extending outward from the rotating ring 271. Two lugs 23 are fixed to the rotating ring 271. The end cap sheet 22 has an arc-shaped hole 221, through which the lugs 23 protrude. The rotating ring 271 is fitted onto the circular boss 214 and can rotate based on the circular boss 214. An operating lever 24 is vertically provided at the end of the lever 272. The operating lever 24 passes through the end cover bracket 21. The user can move the lever 272 through the operating lever 24 to drive the rotating ring 271 to rotate, thereby the rotating ring 271 drives the hanging ear 23 to rotate.

[0171] like Figure 5 As shown, the end cap bracket 21 is provided with an arc-shaped operating hole 215 at the 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 the first position. When the operating rod 24 swings to the left end of the arc-shaped operating hole 215, the two hanging ears 23 are in the second position.

[0172] During the installation of the drive device 100 into the connecting box 300, the operating lever 24 is first swung to the right end of the arc-shaped operating hole 215, and the hanging ear 23 is in the first position. Then, the output shaft 101 is inserted into the socket 301 of the connecting box 300, and the hanging ear 23 is inserted into the arc-shaped connecting groove 302 of the connecting box 300. Next, the operating lever 24 is swung to the left end of the arc-shaped operating hole 215, and the hanging ear 23 is rotated from the first position to the second position. At this time, the hanging ear 23 is hooked onto the inner wall of the arc-shaped connecting groove 302, so that the drive device 100 is connected to the connecting box 300.

[0173] During the process of removing the drive unit 100 from the connecting box 300, the operating lever 24 is swung to the right end of the arc-shaped operating hole 215, and the hanging ear 23 is rotated from the second position to the first position. The hanging ear 23 is no longer attached to the arc-shaped connecting groove 302, and then the drive unit 100 can be removed.

[0174] Furthermore, such as Figure 4 and Figure 7 As shown, the operating lever 24 includes a lever sleeve 241, a lever core 242, and a spring 243 disposed between the lever sleeve 241 and the lever core 242. The lever core 242 passes through the spring 243 and the lever sleeve 241 and is riveted to the lever 272.Figure 7 As shown, the end of the rod core 242 away from the lever 272 has a shaft head protruding to the side, and the inner wall of the rod sleeve 241 has a constriction at the end near the lever 272. The spring 243 is limited between the shaft head and the constriction. When the rod sleeve 241 is pulled in a direction away from the lever 272, the constriction compresses the spring 243.

[0175] exist Figure 7 In this configuration, the lever 272 is in a vertical position, and the lever core 242 passes through the arc-shaped operating hole 215 and connects to the lever 272. The width of the arc-shaped operating hole 215 is slightly larger than the diameter of the lever core 242, allowing the lever core 242 to swing within the arc-shaped operating hole 215. The width of the arc-shaped operating hole 215 is smaller than the outer diameter of the lever sleeve 241, preventing the lever sleeve 241 from passing through the arc-shaped operating hole 215. Figure 5 As shown, a circular limiting hole 216 is provided at the left end of the arc-shaped operating hole 215. The diameter of the limiting hole 216 is slightly larger than the diameter of the operating rod 24. When the rod sleeve 241 swings to the position directly opposite the limiting hole 216, the rod sleeve 241 is inserted into the limiting hole 216, thereby limiting the movement of the operating rod 24. The function of the limiting hole 216 is to lock the position of the operating rod 24 when the lug 23 is engaged with the arc-shaped connecting groove 302, preventing the lug 23 from disengaging from the arc-shaped connecting groove 302. Specifically:

[0176] During the process of removing the drive unit 100 from the connecting box 300, the lever sleeve 241 must first be pulled away from the lever 272 so that the lever sleeve 241 disengages from the limiting hole 216. Only then can the operating lever 24 be swung to the right end of the arc-shaped operating hole 215, so that the lug 23 is no longer engaged with the arc-shaped connecting groove 302. During the process of installing the drive unit 100 into the connecting box 300, when the operating lever 24 swings to the left end of the arc-shaped operating hole 215, the lug 23 engages with the arc-shaped connecting groove 302. Under the elastic force of the spring 243, the lever sleeve 241 automatically engages with the limiting hole 216. The limiting hole 216 locks the position of the operating lever 24, thereby preventing the lug 23 from disengaging from the arc-shaped connecting groove 302.

[0177] It should also be noted that the above embodiments can be combined with each other. For the same or similar concepts or processes, they may not be described again in some embodiments. That is, the technical solutions disclosed in the later (in the order of the text) embodiments should include the technical solutions described in this embodiment and the technical solutions described in all embodiments before this embodiment.

[0178] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A driving device, characterized in that, It includes a tubular outer shell, with a first end cap and a second end cap fixedly connected to both ends of the tubular outer shell, respectively; A drive assembly is provided inside the tubular outer shell, and one end of the drive assembly is fixedly connected to the first end cap. The tubular outer shell is further provided with a second limiting member and a first circuit board, the first circuit board being electrically connected to the drive assembly; the second limiting member is disposed on the second end cap and is used to limit the first circuit board; the drive assembly and the first circuit board are respectively installed from both ends of the tubular outer shell; A detection circuit board is provided between the drive component and the first end cover. A Hall sensor is provided on the detection circuit board. The Hall sensor is used to detect the rotation parameters at the output end of the drive component. The rotation parameters are used to determine the rotation direction and / or angle of the drive component. The detection circuit board is electrically connected to the first circuit board via a flexible connector. During assembly, the flexible connector adapts to the deformation of the drive component and maintains conductivity between the detection circuit board and the first circuit board in any deformation state.

2. The driving device according to claim 1, characterized in that, The drive component is constructed as a long strip structure, with one end fixedly connected to the first end cover, and the drive component forms a cantilever structure relative to the first end cover. The tubular outer shell is further provided with a first limiting member, which is sleeved on the end of the drive assembly away from the first end cap and is used to radially support the drive assembly. The second limiting member is fixedly connected to the second end cap, and the axial direction of the first limiting member is limited by the second limiting member and the driving assembly.

3. The driving device according to claim 2, characterized in that, The second limiting member and the first limiting member are separately formed. The first limiting member includes a sleeve portion and a radial support portion disposed around the sleeve portion. The sleeve portion is sleeved on the driving assembly, and the radial support portion abuts against the inner wall of the tubular shell, so that the driving assembly is radially supported by the first limiting member.

4. The driving device according to claim 3, characterized in that, The radial support portion is integrally formed with the sleeve portion. The radial support portion includes a radial support wall and an axial support wall. The radial support wall extends radially from the side of the sleeve portion in all directions, and the axial support wall extends axially from the end of the radial support wall. The direction of the second limiting member toward the first limiting member is set as the second direction, the axial support wall extends toward the first end cover, and the extension direction is inclined outward relative to the second direction, and the angle between the extension direction and the second direction is less than 10°. The flexible connector includes at least one first conductor, and the radial support portion has a conductor groove for the first conductor to pass through. The radial support wall is provided with at least two arc-shaped buffer holes, which provide space for the radial support wall to undergo elastic deformation. The axial support wall has multiple axially extending dividing holes that extend to the end of the axial support wall to divide the axial support wall into multiple segments.

5. The driving device according to claim 3, characterized in that, The first limiting member is provided with a first abutting part facing the second limiting member, and the second limiting member abuts against the first abutting part to restrict the first limiting member from moving toward the first axis; The first limiting member has a sleeve portion with a second abutting portion at the end of the driving component. The end of the driving component abuts against the second abutting portion to restrict the first limiting member from moving toward the second axis, which is opposite to the first axis. The sleeve portion is configured as a sleeve ring, and the sleeve ring is sleeved on the drive assembly; The second abutment portion is constructed as a limiting ring, which abuts against the end of the drive assembly; The end of the drive component is provided with a second wire, which passes through the hollow part of the limiting ring and connects to the first circuit board.

6. The driving device according to claim 1, characterized in that, The second limiting member has a first limiting member at the end away from the second end cap, and the first limiting member and the second limiting member are integrally formed. The first limiting member includes a sleeve portion and a radial support portion located around the sleeve portion. The sleeve portion is sleeved on the end of the drive assembly, and the radial support portion abuts against the inner wall of the tubular shell, so that the drive assembly is radially supported by the first limiting member. The socket portion is provided with a flared opening facing the drive assembly, and the opening of the flared opening is widened towards the drive assembly. The socket portion is fitted onto the drive assembly through the flared opening.

7. The driving device according to any one of claims 2-6, characterized in that, The first circuit board is limited by the second limiting member and the second end cover. The second limiting member is provided with a first slot. The first slot has a first insertion end near the second end cover and a first stop end away from the second end cover. The first circuit board is inserted into the first slot by the first insertion end. When the second limiting member is installed on the second end cover, the first circuit board is limited between the first stop end and the second end cover.

8. The driving device according to claim 7, characterized in that, It also includes a second circuit board, the second limiting member being provided with a second slot parallel to the first slot, the second slot having a second insertion end near the second end cover and a second stop end away from the second end cover, the second circuit board being inserted into the second slot by the second insertion end, and when the second limiting member is installed on the second end cover, the second circuit board is limited between the second stop end and the second end cover; The second circuit board carries a high-voltage circuit, the first circuit board carries a low-voltage circuit, and the first circuit board and the second circuit board are electrically connected; the second limiting member has a partition between the first circuit board and the second circuit board.

9. The driving device according to claim 1, characterized in that, The second limiting member is integrally formed with the second end cap, and the first circuit board is limited by the second limiting member and the second end cap.

10. The driving device according to claim 9, characterized in that, The second limiting member is provided with a third slot on each side of the first circuit board; the end of the third slot away from the second end cover is a third insertion end, and the first circuit board is inserted into the third slot through the third insertion end; the third insertion end is provided with a first buckle, and the first card interface is provided on both sides of the first circuit board; The first circuit board is inserted into the third slot on both sides, and the end of the first circuit board abuts against the second end cover. The first buckle is engaged with the first card interface, so that the first circuit board is limited by the third slot, the first buckle and the second end cover. The tubular outer shell is further provided with a second circuit board. The second limiting member is provided with a fourth slot on each side of the second circuit board. The fourth slot is parallel to the third slot. The end of the fourth slot away from the second end cover is a fourth insertion end. The second circuit board is inserted into the fourth slot through the fourth insertion end. The fourth insertion end is provided with a second buckle. The second card interface is provided on both sides of the second circuit board. The second circuit board is inserted into the fourth slot on both sides, the end of the second circuit board abuts against the second end cover, and the second buckle is engaged with the second card interface, so that the second circuit board is jointly limited by the fourth slot, the second buckle and the second end cover.

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