Clutch and intelligent curtain driving system

Abstract

The application discloses a kind of clutch and intelligent curtain driving system.The clutch includes clutch cover and the clutch sleeve axially fixed to one end of clutch cover, clutch cover is rotatably connected with clutch block, and clutch block can be axially moved, first axial through hole is arranged on clutch cover to connect clutch block with external equipment, clutch sleeve is rotatably connected with driving block, second axial through hole is arranged on clutch sleeve to connect driving block with external equipment, elastic member and electromagnetic assembly are arranged between clutch block and driving block.When electromagnetic assembly is powered off, clutch block and driving block are kept apart under the elastic force of elastic member, so that clutch block and driving block move independently.Electromagnetic assembly provides magnetic force to overcome the elastic force of elastic member when it is powered on, so that clutch block is connected to driving block along the axial direction, so that driving block can rotate synchronously with clutch block.The clutch has simple structure, is easy to control, and is conducive to simplifying the structure of driving system and reducing cost.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of smart home equipment, in particular to a clutch and a smart curtain driving system. BACKGROUND

[0002] In a driving system of a smart curtain, a clutch is used to connect a driving motor and a curtain body, so as to drive the curtain body. However, the clutch has a complex structure, which makes the whole driving system complex and high in cost.

[0003] Therefore, how to simplify the structure of the smart curtain driving system and reduce the cost is a technical problem to be solved by those skilled in the art. SUMMARY

[0004] Therefore, the present application aims to provide a clutch which can simplify the structure of the smart curtain driving system and reduce the cost. Another object of the present application is to provide a smart curtain driving system comprising the above clutch, which is simple in structure and low in cost.

[0005] To achieve the above objects, the present application provides the following technical solutions.

[0006] A clutch comprises a clutch cover and a clutch sleeve axially fixed to one end of the clutch cover. The clutch cover is rotationally connected with a clutch block, and the clutch block is axially movable. A first axial through hole is arranged on the clutch cover to connect the clutch block with external equipment. The clutch sleeve is rotationally connected with a driving block. A second axial through hole is arranged on the clutch sleeve to connect the driving block with external equipment. An elastic member and an electromagnetic assembly are arranged between the clutch block and the driving block.

[0007] When the electromagnetic assembly is powered off, the clutch block and the driving block are kept separated under the elastic force of the elastic member, so that the clutch block and the driving block move independently.

[0008] When the electromagnetic assembly is powered on, the electromagnetic assembly provides a magnetic force to overcome the elastic force of the elastic member, so that the clutch block is axially close to and connected to the driving block, so that the driving block can rotate synchronously with the clutch block.

[0009] Preferably, an insertion structure is arranged between the clutch block and the driving block, so that when the electromagnetic assembly is powered on, the clutch block and the driving block are inserted and matched through the insertion structure to rotate synchronously.

[0010] Preferably, the insertion structure comprises a tapered gear structure arranged on the axially close end surfaces of the clutch block and the driving block.

[0011] Preferably, a rotating block is further connected to the first axial through hole in a rotating manner, and the rotating block is fixed in position in the axial direction, the rotating block and the clutch block are arranged in sequence in the axial direction and close to the driving block, and the rotating block is connected to the clutch block in a synchronous rotating manner through a rotating limiting structure, and the clutch block is axially movable relative to the rotating block.

[0012] Preferably, the electromagnetic assembly comprises an electromagnet and a movable baffle that can be magnetically attracted, the electromagnet is arranged in the clutch sleeve, and the movable baffle is connected to the clutch block and axially movable in a synchronous manner.

[0013] Preferably, the electromagnet is a circular ring type electromagnet arranged on the driving block.

[0014] Preferably, the electromagnet is fixedly connected to the clutch sleeve, and the movable baffle is rotatably arranged outside the clutch block, one of the electromagnet and the movable baffle is provided with a guide post, and the other is provided with a guide hole sleeved with the guide post, so that the movable baffle and the electromagnet are circumferentially synchronous, and the movable baffle can be axially moved under the guidance of the guide post.

[0015] Preferably, the clutch block comprises a stepped shaft structure, in the axial direction, the large diameter section and the small diameter section of the stepped shaft structure are arranged in sequence in the direction away from the driving block, the movable baffle is sleeved on the small diameter section, and the movable baffle is limited in the axial direction close to the limit position of the electromagnet by abutting against the shaft shoulder between the small diameter section and the large diameter section.

[0016] A smart window curtain driving system comprises the clutch as above, and further comprises a driving motor and a pulley assembly, a motor output shaft of the driving motor is drivingly connected to the clutch block, and the driving block is drivingly connected to the pulley assembly.

[0017] Preferably, two of the clutches are respectively connected to one of the pulley assemblies, and the two clutches are connected to the same driving motor through a gear assembly.

[0018] Preferably, a system shell is further provided, the system shell is provided with a clutch groove and a motor groove, the clutch is arranged in the clutch groove, the driving motor is arranged in the motor groove, the system shell is provided with a transmission through hole in communication with the clutch groove, and the pulley assembly is connected to the clutch through the transmission through hole.

[0019] Preferably, the system shell comprises an outer box, a protection plate and two fixing sleeves, the two fixing sleeves are buckled and fixed to form an inner box, the transmission through hole, the clutch groove and the motor groove are arranged on the opposite surfaces of the two fixing sleeves, the inner box is inserted and fixed in the outer box through the port of the outer box, the transmission through hole is located at the port, the protection plate is fixed at the port, and the input end of the pulley assembly extends into the installation gap between the protection plate and the inner box.

[0020] Preferably, a control board is further included, and the driving motor and the electromagnetic assembly are communicatively connected to the control board.

[0021] The clutch provided by the application comprises a clutch cover and a clutch sleeve axially fixed to one end of the clutch cover, the clutch cover is rotationally connected with a clutch block, and the clutch block is axially movable, a first axial through hole is arranged on the clutch cover to connect the clutch block with external equipment, the clutch sleeve is rotationally connected with a driving block, a second axial through hole is arranged on the clutch sleeve to connect the driving block with external equipment, and an elastic member and an electromagnetic assembly are arranged between the clutch block and the driving block. When the electromagnetic assembly is powered off, the clutch block and the driving block are kept separated under the elastic force of the elastic member, so that the clutch block and the driving block move independently. When the electromagnetic assembly is powered on, the electromagnetic assembly provides a magnetic force to overcome the elastic force of the elastic member, so that the clutch block is axially close to and connected to the driving block, so that the driving block can rotate synchronously with the clutch block.

[0022] When applied to an intelligent curtain driving system, the clutch block is transmissionally connected to a driving motor, and the driving block is transmissionally connected to a curtain body. In use, if the electromagnetic assembly is powered on, the clutch block can be driven by the magnetic force provided by the electromagnetic assembly to overcome the elastic restoring force of the elastic member until the clutch block is connected to the driving block. At this time, if the driving motor drives the clutch block to rotate, the driving block rotates synchronously with the clutch block, and then drives the curtain body to move to open or close. Conversely, if the electromagnetic assembly is powered off and the magnetism disappears, the clutch block moves away from the driving block under the restoring force of the elastic member, so that the clutch block is disconnected from the driving block, the clutch block and the driving block are separated, and the clutch block cannot drive the driving block to rotate. At this time, whether the driving motor continues to operate or not, the corresponding curtain body will not be driven by the driving block, and the driving motor can control the movement of other curtain bodies.

[0023] In the clutch, only the power-on and power-off control of the electromagnetic assembly can make the clutch block axially move under the action of the electromagnetic assembly and the elastic member, realize the connection and separation of the clutch block and the driving block, and make the load equipment connected to the clutch adaptively driven by the driving motor or not controlled by the driving motor. The structure is simple, easy to control, and conducive to simplifying the structure of the driving system and reducing the cost.

[0024] The intelligent curtain drive system provided by the present invention, which includes the above-mentioned clutch, has a simple structure and can reduce costs. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0026] Figure 1 This is a first-view view of the clutch according to a specific embodiment of the present invention.

[0027] Figure 2 This is a second-view view of a specific embodiment of the clutch provided by the present invention;

[0028] Figure 3 An exploded view of a specific embodiment of the clutch provided by the present invention;

[0029] Figure 4 This is a cross-sectional view of the clutch block and drive block in the connected state in a specific embodiment of the clutch provided by the present invention;

[0030] Figure 5 This is a cross-sectional view of the clutch block and drive block in the separated state in a specific embodiment of the clutch provided by the present invention;

[0031] Figure 6 This is a first-view exploded view of the connection structure between the input structure and the drive block in a specific embodiment of the clutch provided by the present invention;

[0032] Figure 7 This is a second-view exploded view of the connection structure between the input structure and the drive block in a specific embodiment of the clutch provided by the present invention;

[0033] Figure 8 This is a structural diagram of the input structure and drive block connection structure in the elastic compression state of a specific embodiment of the clutch provided by the present invention.

[0034] Figure 9 for Figure 8 Structural diagram after concealing the elastic element;

[0035] Figure 10 This is a structural diagram of the input structure and drive block connection structure of the clutch in a specific embodiment of the present invention after the elastic element has returned to its original position.

[0036] Figure 11 for Figure 10 Structural diagram after concealing the elastic element;

[0037] Figure 12 The explosion view of the first embodiment of the intelligent curtain driving system provided by the present application;

[0038] Figure 13 The appearance view of the first embodiment of the intelligent curtain driving system provided by the present application;

[0039] Figure 14 The appearance view of the first embodiment of the intelligent curtain driving system provided by the present application after hiding the partial structure of the pulley assembly;

[0040] Figure 15 The sectional view of the first embodiment of the intelligent curtain driving system provided by the present application;

[0041] Figure 16 The internal structure view of the first embodiment of the intelligent curtain driving system provided by the present application;

[0042] Figure 17 The sectional view of the first embodiment of the intelligent curtain driving system provided by the present application, the arrow indicating the rotation direction of the corresponding part. Figure 16

[0043] Reference signs:

[0044] Elastic member 1;

[0045] Clutch cover 2, first axial through hole 21;

[0046] Clutch cover 3, second axial through hole 31;

[0047] Input structure 4, tapered gear meshing female end 41, rotating block 42, clutch block 43, shaft shoulder 431, small diameter section 432, large diameter section 433, first snap ring 44, first bearing 45, input structure fastening bolt 46;

[0048] Drive block 5, tapered gear meshing male end 51, second snap ring 52, second bearing 53, drive block fastening bolt 54;

[0049] Electromagnet 6, guide column 61;

[0050] Movable baffle 7, guide hole 71;

[0051] Pulley assembly 8, drive pulley 81, steel wire rope 82, fixed pulley 83;

[0052] System shell 9, clutch groove 91, motor groove 92, transmission through hole 93, fixed sleeve 94, protection plate 95, outer box 96, cover plate 97, installation gap 98, gear groove 99;

[0053] Drive motor 10, driving wheel 101, driven wheel 102;

[0054] Control board 11.​ DETAILED DESCRIPTION

[0055] 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 a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative effort belong to the scope of protection of the present application.

[0056] The core of the present application is to provide a clutch, which can simplify the structure of an intelligent curtain driving system and reduce the cost. Another core of the present application is to provide an intelligent curtain driving system comprising the clutch, which has a simple structure and can reduce the cost.

[0057] In an embodiment of the clutch provided by the present application, as shown in Figures 1 to 11 , the clutch comprises a clutch cover 2 and a clutch sleeve 3 axially fixed to one end of the clutch cover 2.

[0058] The clutch cover 2 is rotationally connected with a clutch block 43, and the clutch block 43 is axially movable. The clutch cover 2 is provided with a first axial through hole 21 to connect the clutch block 43 with external equipment.

[0059] The clutch sleeve 3 is rotationally connected with a driving block 5. The clutch sleeve 3 is provided with a second axial through hole 31 to connect the driving block 5 with external equipment. As shown in Figure 4 , the driving block 5 is rotationally connected to the second axial through hole 31 through a second bearing 53, and the second bearing 53 is axially positioned on the driving block 5 through a second clasp ring 52.

[0060] An elastic member 1 and an electromagnetic assembly are arranged between the clutch block 43 and the driving block 5. Specifically, the elastic member 1 is a compression spring, and its two ends are respectively abutted against corresponding pressing surfaces of the clutch block 43 and the driving block 5. In other embodiments, the elastic member 1 can also be a spring sheet or other elastic structure. Specifically, when the electromagnetic assembly is powered, the magnetic force provided by the electromagnetic assembly is opposite to the elastic force of the elastic member 1 and greater than the elastic force of the elastic member 1, so that the deformation degree of the elastic member 1 can be increased.

[0061] As shown in Figure 5 , Figure 10 , and Figure 11 , when the electromagnetic assembly is powered off, the clutch block 43 and the driving block 5 are kept separated under the action of the elastic force of the elastic member 1, so that the clutch block 43 and the driving block 5 move independently.

[0062] As shown in Figure 4 , Figure 8 , and Figure 9 , when the electromagnetic assembly is powered off, the clutch block 43 and the driving block 5 are kept separated under the action of the elastic force of the elastic member 1, so that the clutch block 43 and the driving block 5 move independently.When the electromagnetic assembly is powered, the electromagnetic assembly provides a magnetic force to overcome the elastic force of the elastic member 1, so that the clutch block 43 is axially close to and connected to the driving block 5, so that the driving block 5 can rotate synchronously with the clutch block 43.

[0063] The clutch in the embodiment is applied to an intelligent curtain driving system, the clutch block 43 is drivingly connected to the driving motor 10, and the driving block 5 is drivingly connected to the curtain body. In use, if the electromagnetic assembly is powered, as shown in Figure 4 the clutch block 43 can be driven by the magnetic force provided thereby to overcome the elastic restoring force of the elastic member 1 until the clutch block 43 is connected together with the driving block 5. At this time, if the driving motor 10 drives the clutch block 43 to rotate, the driving block 5 will rotate synchronously with the clutch block 43, and then drive the curtain body to open or close; conversely, as shown in Figure 5 if the electromagnetic assembly is powered off, the magnetism disappears, the clutch block 43 is away from the driving block 5 under the action of the restoring elastic force of the elastic member 1, so that the clutch block 43 is disconnected from the driving block 5, the clutch block 43 and the driving block 5 are separated, and the clutch block 43 cannot drive the driving block 5 to rotate. At this time, whether the driving motor 10 continues to operate or not, the corresponding curtain body will not be driven by the driving block 5. Of course, in other embodiments, the driving block 5 can be drivingly connected to the driving motor and the clutch block 43 can be connected to the curtain body. In addition, the clutch can also be applied to other devices with clutching requirements.

[0064] The clutch in the embodiment can make the clutch block 43 axially move under the action of the electromagnetic assembly and the elastic member 1 by controlling the power-on and power-off of the electromagnetic assembly, so as to realize the connection and separation of the clutch block 43 and the driving block 5, so that the load device connected by the clutch can be adaptively driven by the driving motor 10 or not controlled by the driving motor 10. The structure is simple, easy to control, and conducive to simplifying the structure of the driving system and reducing the cost.

[0065] Further, a plug-in structure is arranged between the clutch block 43 and the driving block 5, so that when the electromagnetic assembly is powered, the clutch block 43 and the driving block 5 are plug-in matched through the plug-in structure to rotate synchronously. In the embodiment, the plug-in matching is used to limit the rotation freedom degree between the clutch block 43 and the driving block 5, so that the two are kept synchronous rotation. The structure is simple and easy to process.

[0066] Further, as shown in Figure 6 and Figure 7As shown, the plug-in structure includes a bevel gear structure arranged on the axial end faces of the clutch block 43 and the driving block 5. More specifically, the bevel gear structure includes a bevel gear female end 41 arranged on the clutch block 43 and a bevel gear male end 51 arranged on the driving block 5, which can realize the circumferential limiting and synchronous rotation between the clutch block 43 and the driving block 5 through the engagement after the axial plug-in. The bevel gear structure can improve the transmission effect, and the bevel gear has a slope, which can guide the bevel gear male end 51 and the bevel gear female end 41 to automatically adjust the position relationship in the axial movement to engage.

[0067] Of course, in other embodiments, the plug-in structure can also include a plug column arranged on the clutch block 43 and a plug hole arranged on the driving block 5, which can realize the circumferential limiting of the clutch block 43 and the driving block 5 through the plug-in of the plug column and the plug hole. In addition, the clutch block 43 and the driving block 5 can also be connected to realize the circumferential limiting without the plug-in structure, but the friction between them can realize the circumferential limiting.

[0068] Further, as shown in Figure 4 and Figure 5 The clutch further includes a rotating block 42 rotatably connected to the first axial through hole 21, and the rotating block 42 is axially fixed. Specifically, the rotating block 42 can be connected to the first bearing 45 through the first clasp ring 44, and is rotatably connected to the first axial through hole 21 through the first bearing 45. The rotating block 42 and the clutch block 43 are arranged in sequence along the axial direction close to the driving block 5.

[0069] Among them, the clutch block 43 and the rotating block 42 constitute the input structure 4, and the clutch block 43 is connected to the external device such as the driving motor 10 through the rotating block 42. Specifically, as shown in Figure 2 and Figure 4 Part of the structure of the rotating block 42 extends out of the first axial through hole 21 along the axial direction, so as to connect the external device through the input structure fastening bolt 46.

[0070] Among them, the rotating block 42 is connected to the clutch block 43 through the rotation limiting structure and rotates synchronously, and the clutch block 43 can move axially relative to the rotating block 42, wherein the axial movement of the clutch block 43 relative to the rotating block 42 is realized through the driving of the elastic member 1 and the electromagnetic assembly. Specifically, as shown in Figures 5 to 7 The rotation limiting structure includes a square column fixed on the rotating block 42 and a square hole opened on the clutch block 43, which are axially plug-in matched, and the square column can guide the axial movement of the clutch block 43 while limiting the synchronous rotation of the clutch block 43 with the rotating block 42.

[0071] In the embodiment, the axial position of the rotating block 42 is unchanged, which can bring convenience to the connection of the rotating block 42 with external devices. When the rotating block 42 rotates, the clutch block 43 can be driven to rotate synchronously regardless of the axial position relationship between the clutch block 43 and the rotating block 42. Specifically, when the clutch block 43 moves axially to be connected with the driving block 5, the rotating block 42 can drive the clutch block 43 and the driving block 5 to rotate synchronously; and when the clutch block 43 moves axially to be separated from the driving block 5, the rotating block 42 drives the clutch block 43 to rotate but does not drive the driving block 5. Of course, in other embodiments, the rotating block 42 can not be provided, and the clutch block 43 can be directly connected in transmission with the driving motor 10.

[0072] Further, as shown in Figure 4 , the electromagnetic assembly includes an electromagnet 6 and a movable baffle 7 that can be magnetically attracted. Alternatively, the movable baffle 7 is made of a metal piece such as an iron plate that can be magnetically attracted, or the movable baffle 7 is a magnet. The electromagnet 6 is arranged in the clutch cover 3, and the movable baffle 7 is connected to the clutch block 43 and can move axially synchronously. The attraction force of the electromagnet 6 to the movable baffle 7 must be greater than the elastic force of the elastic member 1.

[0073] In the embodiment, the movable baffle 7 is connected to the clutch block 43 and drives the clutch block 43 to move axially, compared with the embodiment in which the electromagnet 6 is connected to the clutch block 43, the structure such as the circuit connected to the electromagnet 6 does not need to move axially, which is beneficial to simplify the device.

[0074] Further, as shown in Figure 3 and Figure 4 , the electromagnet 6 is a circular ring type electromagnet arranged on the driving block 5. Since the electromagnet 6 has a circular ring structure, the electromagnet 6 can support the driving block 5 in cooperation with the second axial through hole 31, thereby improving the stability of the driving block 5. Of course, in other embodiments, the electromagnet 6 can also be a strip-shaped body or other shapes.

[0075] Further, as shown in Figure 4 , the electromagnet 6 is fixedly connected to the clutch cover 3, and the movable baffle 7 is rotatably arranged outside the clutch block 43.

[0076] The electromagnet 6 is provided with a guide column 61, and the movable baffle 7 is provided with a guide hole 71 that is sleeved with the guide column 61, so that the movable baffle 7 and the electromagnet 6 move synchronously in the circumferential direction through the sleeving of the guide column 61 and the guide hole 71. Since the electromagnet 6 remains stationary in the circumferential direction, correspondingly, the movable baffle 7 can remain stationary in the circumferential direction with the electromagnet 6 and will not rotate with the clutch block 43. In addition, the movable baffle 7 can move axially under the guidance of the guide column 61. Of course, in other embodiments, the guide column 61 can be arranged on the movable baffle 7, and the guide hole 71 can be arranged on the electromagnet 6.

[0077] In the embodiment, the electromagnet 6 is fixedly connected with the clutch sleeve 3, and the circuit of the electromagnet 6 can also be kept stationary, facilitating the electrical connection of the electromagnet 6 circuit and the stable transmission of signals. In addition, the guide column 61 is sleeved with the guide hole 71, which can ensure the stability of the axial movement of the movable baffle 7. Furthermore, the movable baffle 7 is circumferentially limited by the electromagnet 6 and cannot rotate with the clutch block 43, which can reduce the number of components that need to rotate in the clutch and reduce the shaking during operation.

[0078] Further, as shown in Figure 4 and Figure 7 , the clutch block 43 comprises a stepped shaft structure. Specifically, in the direction away from the driving block 5 in the axial direction, the clutch block 43 is sequentially provided with the tapered gear meshing female end 41 and the stepped shaft structure. In the axial direction, the large-diameter section 433 and the small-diameter section 432 of the stepped shaft structure are sequentially arranged in the direction away from the driving block 5. The movable baffle 7 is sleeved on the small-diameter section 432, and the movable baffle 7 is specifically a circular ring plate. The movable baffle 7 is limited in the axial direction to approach the limit position of the electromagnet 6 by abutting against the shaft shoulder 431 between the small-diameter section 432 and the large-diameter section 433.

[0079] In the embodiment, the movable baffle 7 is connected to the stepped shaft structure of the clutch block 43, which facilitates assembly and ensures the reliable axial movement of the movable baffle 7 and the clutch block 43. Specifically, when the electromagnet 6 is powered on, the movable baffle 7 is attracted by the electromagnet 6 and presses the shaft shoulder 431 of the stepped shaft structure to drive the clutch block 43 to move towards the driving block 5; when the electromagnet 6 is powered off, the clutch block 43 is driven away from the driving block 5 by the elastic force of the elastic member 1, and the movable baffle 7 is pushed to move synchronously in the axial direction by the shaft shoulder 431 of the stepped shaft.

[0080] The clutch provided in the embodiment has the following working principle: as shown in Figure 4 , the electromagnet 6 is powered on to generate magnetism, which magnetically attracts the movable baffle 7 towards the electromagnet 6, thereby driving the clutch block 43 to move axially, as shown by the dotted line in Figure 4 , so as to be meshed and fixed with the driving block 5. At this time, the elastic member 1 is in a compressed state, and the driving block 5 can be synchronously rotated with the rotating block 42 and the clutch block 43; conversely, as shown in Figure 5 , when the electromagnet 6 is powered off, the magnetism disappears, and the movable baffle 7 and the clutch block 43 are ejected away from the electromagnet 6 and the driving block 5 under the elastic force of the elastic member 1, as shown by the dotted line in Figure 5 , the clutch block 43 is disengaged from the driving block 5, and the two are separated, so that the rotating block 42 and the clutch block 43 no longer drive the driving block 5 to rotate, and the load device connected to the driving block 5 also stops moving.

[0081] The clutch provided by the embodiment can be applied to driving single-track and double-track window curtains, has simple structure, is convenient and flexible to control, and is beneficial to realizing miniaturization, practicality and low cost of the intelligent window curtain driving system.

[0082] In addition to the clutch, the application further provides an intelligent window curtain driving system, which comprises the clutch and can be the clutch provided in any of the above embodiments, and the beneficial effects can be correspondingly referred to the above embodiments.

[0083] Specifically, in the first embodiment of the intelligent window curtain driving system provided by the application, refer to Figures 12 to 17 The intelligent window curtain driving system further comprises a driving motor 10 and a pulley assembly 8. The motor output shaft of the driving motor 10 is drivingly connected to the clutch block 43, and specifically as shown in Figure 15 The clutch block 43 is connected to the driving motor 10 through the rotating block 42. The driving block 5 is drivingly connected to the pulley assembly 8. Specifically, as shown in Figure 13 The pulley assembly 8 comprises a driving pulley 81, a fixed pulley 83 and a steel wire rope 82 drivingly connecting the driving pulley 81 and the fixed pulley 83, the driving pulley 81 is fixed to the driving block 5, and the movement of the steel wire rope 82 drives the window curtain body to move.

[0084] Further, as shown in Figure 13 and 15 Two clutches are connected to one pulley assembly 8 respectively, and the two clutches are connected to the same driving motor 10 through a gear assembly. Specifically, the gear assembly comprises a driving wheel 101 connected to the motor output shaft of the driving motor 10, and two driven wheels 102 in meshing cooperation with the driving wheel 101 for transmission, and the two driven wheels 102 are respectively connected to the rotating blocks 42 in the two clutches. Of course, in other embodiments, the gear assembly can be replaced by a belt transmission assembly or other transmission mechanisms.

[0085] In the embodiment, the intelligent window curtain driving system is applied to a double-track window curtain, each pulley assembly 8 is connected to one window curtain body, and through the on-off state of the two clutches, the movement of the two window curtain bodies can be controlled respectively by means of the same driving motor 10, which has simple structure, can reduce the setting of the driving motor 10, is beneficial to reducing the equipment occupied space and saving cost.

[0086] Further, as shown in Figure 12 and Figure 15As shown, the driving system further comprises a system housing 9. The system housing 9 is provided with a clutch groove 91 and a motor groove 92, the clutch is arranged in the clutch groove 91, and the driving motor 10 is arranged in the motor groove 92. The system housing 9 is provided with a transmission through hole 93 communicating with the clutch groove 91, and the pulley assembly 8 is connected with the clutch through the transmission through hole 93. In addition, the system housing 9 is further provided with a gear groove 99 for positioning the gear assembly.

[0087] In this embodiment, the reliable positioning of the clutch and the driving motor 10 can be realized by the arrangement of the groove structure. In addition, the system housing 9 can protect the internal components, which is beneficial to prolong the service life of the equipment.

[0088] Further, as shown in Figure 12 , Figure 14 and Figure 15 , the system housing 9 comprises an outer box 96, a protection plate 95 and two fixing sleeves 94. The two fixing sleeves 94 are fastened and fixed to form an inner box, the transmission through hole 93, the clutch groove 91 and the motor groove 92 are arranged on the opposite surfaces of the two fixing sleeves 94, the inner box is inserted and fixed in the outer box 96 through the port of the outer box 96, and the transmission through hole 93 is located at the port, the protection plate 95 is fixed at the port, and the input end of the pulley assembly 8 extends into the mounting gap 98 between the protection plate 95 and the inner box. Specifically, the input end of the pulley assembly 8 is the driving pulley 81.

[0089] In this embodiment, since the transmission through hole 93, the clutch groove 91 and the motor groove 92 are arranged on the opposite surfaces of the two fixing sleeves 94, the driving motor 10 and the clutch are convenient to disassemble and assemble, and the outer box 96 is sleeved outside the inner box, so that the structural strength of the inner box can be ensured. In addition, the driving pulley 81 can be protected by the cooperation of the protection plate 95 and the inner box, the exposure degree of the pulley assembly 8 is reduced, and the appearance of the equipment is improved.

[0090] Further, as shown in Figure 12 , the driving system further comprises a control board 11, and the driving motor 10 and the electromagnetic assembly are communicatively connected to the control board 11. Specifically, the control board 11 is fixed between the inner box and the outer box 96, and the circuit of the electromagnet 6 in the clutch passes through the clutch sleeve 3 and the fixing sleeve 94 and is electrically connected to the control board 11.

[0091] In this embodiment, the on-off instruction signal of the electromagnet 6 comes from the circuit software control of the control board 11. By controlling the on-off of the electromagnet 6 in the two clutches, the coupling and transmission of the driven wheel 102 and the corresponding driving pulley 81 can be controlled, and then the opening and closing movement of each curtain body can be controlled. Integrating the control board 11 on the system housing 9 can facilitate the control of the electromagnetic assembly.

[0092] The intelligent curtain driving system provided in this embodiment is applied to double curtains, and the working principle is as follows:

[0093] When the electromagnet 6 in both clutches is instructed to be energized, the driving block 5 in both clutches is connected with the clutch block 43, and the two driven wheels 102 drive the corresponding pulley assembly 8 through the two clutches, thereby driving the two curtain bodies to move;

[0094] When only the electromagnet 6 in one clutch is instructed to be energized, the driving block 5 in the clutch is connected with the clutch block 43, and the corresponding curtain body is controlled to move, and the other curtain body does not move;

[0095] During the movement of each curtain body, when the curtain body is driven to the position, the electromagnet 6 is de-energized under the instruction of the corresponding signal, the driving block 5 in the clutch and the clutch block 43 are separated, the driving pulley 81 is stopped, and the curtain body is also stopped from being driven, so that the opening and closing of the curtain body and the protection of the driving motor 10 can be achieved.

[0096] In addition, in the second specific embodiment of the intelligent curtain driving system provided by the application, only one clutch is arranged in the intelligent curtain driving system, and at this time, the pulley assembly 8 is connected with one curtain body. In use, the clutch is initially in a de-energized state, the driving block 5 in the clutch and the clutch block 43 are separated under the elastic force of the elastic element 1, the movement of the curtain body is not affected by the movement of the driving motor 10, the driving motor 10 can be protected, and manual opening and closing of the curtain body can be realized; when the control panel 11 receives an instruction to control the curtain body to move, the control panel 11 controls the electromagnet 6 of the clutch to be energized, so that the driving block 5 is connected to the clutch block 43, the driving motor 10 can drive the rotating block 42, the clutch block 43 and the driving block 5 to rotate synchronously, and then drive the curtain body to move.

[0097] It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can be intervening elements. When an element is referred to as being “connected” to another element, it can be directly connected to the other element or intervening elements can be present.

[0098] The terms “central”, “upper”, “lower”, “left”, “right”, “vertical”, “horizontal”, “inner”, “outer” 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 application and simplifying the description, and cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the application. In addition, the terms “first”, “second”, “third” are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implying the number of the technical features indicated.

[0099] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0100] Various embodiments are described herein with progressive levels of generality. Each of the various embodiments highlights a different aspect or aspect combination of the application. The same or similar elements in the various embodiments are identified with the same or similar reference numerals.

[0101] The clutch and the intelligent curtain driving system provided by the application are described in detail above. The principles and implementation manners of the application are described by applying specific examples in this paper. The above description of the embodiments is only used to help understand the method of the application and its core idea. It should be pointed out that, for those skilled in the art, some improvements and modifications can be made to the application without departing from the principles of the application, and these improvements and modifications also fall within the protection scope of the claims of the application.

Claims

1. A clutch, characterized by The clutch cover (2) is rotationally connected with a clutch block (43), and the clutch block (43) is axially movable, a first axial through hole (21) is arranged on the clutch cover (2) to connect the clutch block (43) with external equipment, the clutch sleeve (3) is rotationally connected with a driving block (5), a second axial through hole (31) is arranged on the clutch sleeve (3) to connect the driving block (5) with external equipment, and an elastic member (1) and an electromagnetic assembly are arranged between the clutch block (43) and the driving block (5). When the electromagnetic assembly is powered off, the clutch block (43) and the driving block (5) are kept separated under the elastic force of the elastic member (1), so that the clutch block (43) and the driving block (5) independently move respectively. When the electromagnetic assembly is powered on, the electromagnetic assembly provides a magnetic force to overcome the elastic force of the elastic member (1), so that the clutch block (43) is axially close to and connected to the driving block (5), so that the driving block (5) can synchronously rotate with the clutch block (43). The first axial through hole (21) and the clutch block (43) are sequentially arranged in the direction of being axially close to the driving block (5). A rotating block (42) rotationally connected to the first axial through hole (21) is further arranged, and the rotating block (42) is axially position-invariant, the rotating block (42) and the clutch block (43) are sequentially arranged in the direction of being axially close to the driving block (5), the rotating block (42) is connected with the clutch block (43) through a rotation limiting structure and synchronously rotates, and the clutch block (43) can be axially moved relative to the rotating block (42). The electromagnetic assembly includes an electromagnet (6) and a movable baffle (7) that can be magnetically attracted, the electromagnet (6) is arranged in the clutch sleeve (3), and the movable baffle (7) is connected to the clutch block (43) and can synchronously axially move. An insertion structure is arranged between the clutch block (43) and the driving block (5), so that when the electromagnetic assembly is powered on, the clutch block (43) and the driving block (5) are inserted and matched through the insertion structure to synchronously rotate.

2. The clutch of claim 1, wherein The insertion structure includes a conical gear structure arranged on the axially close end surface of the clutch block (43) and the driving block (5).

3. A clutch as claimed in claim 1 or 2, characterised in that, The electromagnet (6) is a circular ring type electromagnet sleeved on the driving block (5).

4. The clutch of claim 1 or 2, wherein The electromagnet (6) is fixedly connected to the clutch sleeve (3), and the movable baffle (7) is rotatably sleeved on the outside of the clutch block (43); one of the electromagnet (6) and the movable baffle (7) is provided with a guide column (61), and the other is provided with a guide hole (71) sleeved with the guide column (61), so that the movable baffle (7) and the electromagnet (6) synchronously move in the circumferential direction through the sleeve of the guide column (61) and the guide hole (71), and the movable baffle (7) can axially move under the guidance of the guide column (61).

5. The clutch of claim 1 or 2, wherein The clutch block (43) comprises a stepped shaft structure, in which a large diameter section (433) and a small diameter section (432) are arranged in sequence in the direction away from the driving block (5) in the axial direction, the movable baffle (7) is sleeved on the small diameter section (432), and the movable baffle (7) is limited to the limit position of approaching the electromagnet (6) in the axial direction by abutting against the shaft shoulder (431) between the small diameter section (432) and the large diameter section (433).

6. An intelligent window shade drive system characterized by, The clutch comprises the clutch according to any one of claims 1 to 5, further comprising a driving motor (10) and a pulley assembly (8), and a motor output shaft of the driving motor (10) is drivingly connected to the clutch block (43), and the driving block (5) is drivingly connected to the pulley assembly (8).

7. The smart window shade drive system of claim 6, wherein, Two of the clutches are respectively connected to one of the pulley assemblies (8), and the two clutches are connected to the same driving motor (10) through a gear assembly.

8. The smart window shade drive system of claim 6, wherein, Further comprising a system shell (9), the system shell (9) is provided with a clutch groove (91) and a motor groove (92), the clutch is arranged in the clutch groove (91), the driving motor (10) is arranged in the motor groove (92), the system shell (9) is provided with a transmission through hole (93) communicating with the clutch groove (91), and the pulley assembly (8) is connected to the clutch through the transmission through hole (93).

9. The smart window shade drive system of claim 8, wherein, The system shell (9) comprises an outer box (96), a protection plate (95) and two fixing sleeves (94), the two fixing sleeves (94) are buckled and fixed to form an inner box, the transmission through hole (93), the clutch groove (91) and the motor groove (92) are arranged on the opposite surfaces of the two fixing sleeves (94); the inner box is inserted and fixed in the outer box (96) through a port of the outer box (96), and the transmission through hole (93) is located at the port; the protection plate (95) is fixed at the port, and an input end of the pulley assembly (8) is inserted into a mounting gap (98) between the protection plate (95) and the inner box.

10. The smart window shade drive system of any of claims 6-9, wherein, Further comprising a control board (11), the driving motor (10) and the electromagnetic assembly are communicatively connected to the control board (11).

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