An electric curtain control device and an electric curtain applying the control device

Abstract

The present invention discloses an electric curtain control device, which includes a housing and a pull rod. The housing has a first end and a second end oppositely arranged in a first direction. The pull rod extends along the first direction and can rotate around its own axis. A hanging wheel for cooperating with a track is arranged at the end of the pull rod extending outside the first end of the housing. The hanging wheel can rotate with the pull rod. The control device further includes a mounting bracket arranged inside the housing, a roller for cooperating with the track, and a first motor for driving the roller to rotate. The roller is rotatably arranged on the mounting bracket, and the rotation axis of the roller extends along a second direction. The first direction and the second direction are perpendicular to each other. A clutch device is arranged between the first motor and the roller, so that the connection between the first motor and the roller can be selectively achieved. An electric curtain applying the above control device is also disclosed.

Description

Technical Field

[0001] The present invention relates to an electric curtain, in particular to an electric curtain control device and an electric curtain applied with the control device. Background Art

[0002] Many existing household curtains are still mainly manual, including a track, a hanging wheel and a curtain cloth. Consumers pull the curtain by hand to move it along the track, which is laborious and easy to break the hanging wheel.

[0003] For this reason, there are already electric curtains that can automatically move the curtain to solve the above problems. For example, a super silent intelligent electric curtain disclosed in a Chinese patent with the application number 201620757797.4 includes a curtain body, a motor and a remote control. The curtain body includes an electric rail frame and transmission boxes arranged at both ends of the electric rail frame. The motor is arranged at the bottom of the transmission box. A pulley, a trolley and a buckle are arranged on the electric rail frame; a super silent track for the pulley and the trolley is arranged at the bottom of the electric rail frame. Synchronous belts are arranged on both sides inside the super silent track. The motor is internally provided with a drive module, a control chip and a wireless transceiver module, and the remote control is wirelessly connected to the wireless transceiver module arranged inside the motor.

[0004] However, the above electric curtain is only suitable for new installations. If it is to replace the original manual curtain, the original manual curtain track needs to be removed, replaced and reinstalled, and the replacement cost is relatively high. For this reason, at present, the modification of the manual curtain can be realized by adding a control device. For example, a curtain control device disclosed in a Chinese patent with the application number 201721904169.5 is used to be installed on the curtain track and can move on the curtain track to drive the curtain to open and close. The curtain control device includes a housing assembly, a driving wheel, a driven wheel, a power assembly, a mounting bracket, a control button and a gear-rack transmission pair. The driving wheel is embedded in the housing assembly and partially protrudes above the housing assembly. The power assembly is installed inside the housing assembly and is in transmission connection with the driving wheel. The mounting bracket extends from inside the housing assembly above the housing assembly. The driven wheel is installed at the top of the mounting bracket. The control button is elastically embedded on the housing assembly. The gear-rack transmission pair is arranged inside the housing assembly and is connected between the control button and the mounting bracket.

[0005] However, the above control device does not have a pressing adjustment function. There is only spring tightening, and the pressing force of the contact surface between the roller and the track cannot be adjusted. If the pressing force is too small, it will cause slipping. If the pressing force is too large, the friction force will be too large when the roller rolls, increasing the motor output and reducing the battery life of the control device. In addition, there is no stroke detection function and clutch device. It can only stop running when encountering an obstacle or be remotely controlled by an app to run or stop, and cannot be started by hand. Summary of the Invention

[0006] The first technical problem to be solved by the present invention is to provide an electric curtain control device for the problems existing in the above-mentioned prior art, which can realize hand-pull start, adjust the clamping force, avoid slipping, and maintain a longer battery life.

[0007] The second technical problem to be solved by the present invention is to provide an electric curtain using the above control device.

[0008] The technical solution adopted by the present invention to solve the first technical problem mentioned above is: an electric curtain control device, including a shell and a pull rod, the shell having a first end and a second end arranged opposite to each other in a first direction, the pull rod extending along the first direction and being able to rotate around its own axis, the pull rod extending outside the first end of the shell is provided with a hanging wheel for cooperating with the track of the electric curtain, the hanging wheel can rotate with the pull rod, the control device also includes a mounting bracket arranged in the shell, a roller for cooperating with the track of the electric curtain and a first motor for driving the roller to rotate, the roller is rotatably arranged on the mounting bracket, the rotating axis of the roller extends along the second direction, the first direction and the second direction are perpendicular to each other; it is characterized in that: a clutch device is provided between the first motor and the roller, so that the first motor and the roller are selectively connected.

[0009] To reduce power consumption, a transmission mechanism is provided between the first motor and the roller. The clutch device has an input end connected to the transmission mechanism and an output end connected to the roller. At least the portion of the clutch device between its input end and output end is located inside the roller.

[0010] Preferably, the clutch device includes a first shell arranged in the roller and rotating synchronously with the roller, a second shell arranged in the first shell and rotating synchronously with the first shell, and a cam arranged in the second shell and rotating synchronously with the output end of the transmission mechanism, the cam serves as the input end of the clutch device, the first shell serves as the output end of the clutch device, an outwardly recessed recess is provided on the inner circumferential wall of the second shell, and a ball that cooperates with the cam is also provided in the second shell, and the end of the cam can press the ball into the recess so that the cam and the second shell rotate synchronously, or the ball can disengage from the recess to separate the cam and the second shell.

[0011] To facilitate the control of the travel of the curtain, a magnet is arranged in the first shell, and a first control circuit board for controlling the first motor is also arranged in the shell. A Hall element is arranged on the first control circuit board adjacent to the magnet, and the magnet and the Hall element constitute a travel detection device.

[0012] To facilitate the adjustment of the pressing force, avoid slipping, and maintain a long battery life, a second motor for driving the mounting bracket or the pull rod to linearly move in the first direction is further provided inside the housing. The pull rod passes through the mounting bracket, so that while the pull rod and the mounting bracket linearly move relative to each other in the first direction, the pull rod can rotate relative to the mounting bracket.

[0013] To facilitate the relative linear movement and relative rotation between the pull rod and the mounting bracket, the pull rod is cylindrical, and a guide groove is formed on the outer peripheral wall of the pull rod. The guide groove extends along the axial direction and the circumferential direction of the outer peripheral wall of the pull rod. The two ends of the guide groove are arranged in a circumferential dislocation and an axial dislocation on the outer peripheral wall of the pull rod. A through hole for the pull rod to pass through is formed on the mounting bracket, and a protrusion cooperating with the guide groove is arranged on the inner wall of the through hole.

[0014] According to one aspect of the present invention, the mounting bracket is movably arranged inside the housing, the second motor is fixedly connected to the mounting bracket, a base is fixedly arranged inside the housing, the pull rod is rotatably connected to the base, a threaded sleeve is arranged on the base, and the output end of the second motor is threadedly connected to the threaded sleeve.

[0015] According to another aspect of the present invention, the mounting bracket and the second motor are fixedly arranged inside the housing, a movable transmission bracket is arranged inside the housing, the pull rod is rotatably connected to the transmission bracket, a threaded sleeve is arranged on the transmission bracket, and the output end of the second motor is threadedly connected to the threaded sleeve.

[0016] Preferably, a battery assembly for supplying power to the first motor and the second motor is further provided inside the housing. The battery assembly can be inserted into the housing from the second end of the housing and is detachably connected to the housing. The battery assembly includes a battery case, a battery, a battery bracket, and a button. The battery is a rechargeable battery. The battery is fixedly arranged on the battery bracket, and both the battery and the battery bracket are fixedly arranged inside the battery case. The button can move towards the battery bracket to disengage the battery assembly from the housing, and the button keeps protruding out of the battery case and the housing in a direction away from the battery bracket, so as to keep the battery assembly and the housing connected.

[0017] The technical solution adopted by the present invention to solve the above second technical problem is: an electric curtain applying the control device as described above, including a track, characterized in that: the width direction of the track is the second direction, the length direction of the track is the third direction, the first direction, the second direction, and the third direction are perpendicular to each other in pairs, the hanging wheel can be engaged with the track, and the roller can rollingly cooperate with the bottom surface of the track.

[0018] Compared with the prior art, the advantages of the present invention are as follows: By providing a clutch device, the function of manually pulling the curtain can be realized; by integrating the clutch into the roller, the overall volume is reduced, making the device small and capable of extending the service time; by providing a stroke detection device, the stroke of the curtain can be conveniently controlled by setting the stroke points, and at the same time, in cooperation with the clutch device, the function of starting by manual pulling can be realized without the operation of an external remote controller or app; furthermore, the movement of the pull rod or the mounting bracket is controlled by the second motor, and the pressing force between the roller and the track contact surface can be electrically adjusted, so that the roller can automatically stick to or disengage from the track surface, thereby avoiding slipping due to too small pressing force and excessive friction caused by too large pressing force, ensuring the battery life of the control device, and being convenient and quick for installation and disassembly, more worry-free and labor-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Schematic diagram of the installation state of the first embodiment of the control device of the present invention;

[0020] Figure 2 is Figure 1 sectional view of;

[0021] Figure 3 Schematic diagram of the first embodiment of the control device of the present invention;

[0022] Figure 4 Exploded structural schematic diagram of the first embodiment of the control device of the present invention;

[0023] Figure 5 Exploded structural schematic diagram of the first embodiment of the control device of the present invention with the housing hidden;

[0024] Figure 6 Schematic diagram of the first embodiment of the control device of the present invention with the housing hidden, battery assembly and top cover;

[0025] Figure 7 Schematic diagram of the first embodiment of the control device of the present invention with the housing hidden, battery assembly, mounting bracket and top cover;

[0026] Figure 8 Schematic diagram of the pull rod of the first embodiment of the control device of the present invention;

[0027] Figure 9 Schematic diagram of the mounting bracket of the first embodiment of the control device of the present invention;

[0028] Figure 10 Radial sectional view of the roller, clutch device and stroke detection device of the first embodiment of the control device of the present invention;

[0029] Figure 11Axial sectional view of the roller, clutch device, stroke detection device and part of the transmission mechanism of the first embodiment of the control device of the present invention;

[0030] Figure 12 Exploded structural schematic diagram of the roller, clutch device and stroke detection device of the first embodiment of the control device of the present invention;

[0031] Figure 13 Schematic diagram of the state before installation of the first embodiment of the control device of the present invention;

[0032] Figure 14 Schematic diagram of the state before installation of the first embodiment of the control device of the present invention with the housing, battery assembly and top cover hidden;

[0033] Figure 15 Schematic diagram of the installation state of the second embodiment of the control device of the present invention;

[0034] Figure 16 Schematic diagram of the second embodiment of the control device of the present invention;

[0035] Figure 17 Schematic diagram of the installation state of the third embodiment of the control device of the present invention;

[0036] Figure 18 Schematic diagram of the third embodiment of the control device of the present invention;

[0037] Figure 19 Schematic diagram of the fourth embodiment of the control device of the present invention;

[0038] Figure 20 Schematic diagram of the fourth embodiment of the control device of the present invention with part of the housing and control circuit board hidden;

[0039] Figure 21 Schematic diagram of the fourth embodiment of the control device of the present invention with part of the housing hidden. Detailed Description of the Embodiment

[0040] The embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions.

[0041] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Since the embodiments disclosed in the present invention can be arranged in different directions, these terms indicating directions are only for illustration and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to the directions opposite to or consistent with the direction of gravity. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features.

[0042] Embodiment 1

[0043] See Figure 1 and Figure 2 , an electric curtain, including a control device 1 and a track 2. In this embodiment, the track 2 is the track of an existing ordinary manual curtain, including a hollow track body 21, whose longitudinal section is square. An opening 22 is formed at the bottom of the track body 21, and the opening 22 extends along the length direction of the track body 21.

[0044] See Figures 3 to 5 , the control device 1 includes a housing 111, a top cover 112 movably arranged in the housing 111, a base 113 fixedly arranged in the housing 111, a mounting bracket 114 movably arranged in the housing 111, and a battery assembly 12 detachably arranged in the housing 111. The top cover 112 and the mounting bracket 114 move synchronously. The housing 111 is a hollow cylinder, which has an open first end 1111 and a second end 1112, and the first end 1111 and the second end 1112 are oppositely arranged. The top cover 112 is fixedly arranged at the first end 1111 of the housing 111. The mounting bracket 114 is arranged between the top cover 112 and the base 113. The battery assembly 12 is loaded from the second end 1112 of the housing 111, and the base 113 is located between the mounting bracket 114 and the battery assembly 12. The mounting bracket 114 is of an integral structure, which includes a first bracket 1141 adjacent to the top cover 112 and a second bracket 1142 extending from the first bracket 1141 towards the base 113. For the convenience of description, see Figure 3 , when in the installed state, the up-down direction is the first direction X, the front-rear direction (the width direction of the track 2) is the second direction Y, and the left-right direction (the length direction of the track 2) is the third direction Z. The first end 1111 and the second end 1112 of the housing 111 are oppositely arranged in the first direction X.

[0045] The control device 1 further includes a hanging wheel 13 and a roller 14 for cooperating with the track 2. To facilitate the setting of the hanging wheel 13, the control device 1 further includes a pull rod 15. One end of the pull rod 15 is rotatably connected to the base 113, and the other end passes through the first bracket 1141 of the mounting bracket 114 and the top cover 112 and extends outside the top cover 112. The hanging wheel 13 is provided at the end of the pull rod 15 extending to the first end 1111 of the housing 111. A retaining piece (not shown) can be provided at the position where the pull rod 15 is connected to the base 113 to prevent the pull rod 15 from moving relative to the base 113 in the first direction X, and it can only rotate relative to the base 113 about its own axis. There are two pull rods 15, and each pull rod 15 extends along the first direction X. The two pull rods 15 are spaced apart relative to each other in the third direction Z. There are four hanging wheels 13, and each pull rod 15 has two hanging wheels 13. The two hanging wheels 13 are connected to each other by a connecting rod 151. The connecting rod 151 is in a T shape. The part of the connecting rod 151 extending in the same direction as the pull rod 15 is fixedly connected to the pull rod 15. The connecting rod 151 also has a part extending in the direction perpendicular to the first direction X. Alternatively, the connecting rod 151 only has a part extending in the direction perpendicular to the first direction X. The hanging wheel 13 is rotatably sleeved on this part of the connecting rod 151, so that the two hanging wheels 13 can be arranged opposite to each other in the direction perpendicular to the first direction X.

[0046] The roller 14 is rotatably supported on the first bracket 1141 of the mounting bracket 114. The rotation axis of the roller 14 extends in the second direction Y. A through hole 1121 is provided at the position of the top cover 112 opposite to the roller 14 to facilitate at least part of the roller 14 to be exposed outside the top cover 112. Combining Figure 6 and Figure 7 , to facilitate driving the roller 14 to rotate and move up and down relative to the housing 111, the control device 1 further includes a first motor 161 and a second motor 162 provided in the housing 111. The first motor 161 is fixedly provided on the mounting bracket 114. Preferably, it can be provided on the second bracket 1142. The first motor 161 transmits torque to the roller 14 through a transmission mechanism 163, so that the roller 14 can rotate. Preferably, the transmission mechanism 163 is a gear set. Its primary gear 1631 is connected to the output shaft of the first motor 161, and the final gear 1632 is used to drive the roller 14. The rotation axis of the final gear 1632 is the rotation axis of the roller 14. A first control circuit board 164 is also fixedly provided on the second bracket 1142 for controlling the operation of the first motor 161. A second control circuit board 165 is fixedly provided on the base 113 for controlling the operation of the second motor 162.

[0047] To facilitate manually starting and pulling the curtain and reducing the resistance of pulling the curtain, a clutch device can be provided between the rotation axis of the roller 14 and the transmission mechanism 163 for transmission. See Figures 10 to 12, the clutch device includes a first housing 1661, a second housing 1662, a cam 1663 and a ball 1664 disposed within the roller 14. Among them, both the first housing 1661 and the second housing 1662 are hollow cylinders open towards the final gear 1632 of the transmission mechanism 163. The first housing 1661 is disposed on the outer periphery of the second housing 1662, and the two can rotate synchronously in a tooth-engagement manner. The roller 14 is made of a flexible material and is wrapped around the outer periphery of the first housing 1661 to be able to rotate synchronously with the first housing 1661. The cam 1663 is disposed within the second housing 1662 and is connected to the final gear 1632 of the transmission mechanism 163 to be able to rotate synchronously. In this embodiment, a connecting gear 1667 is integrally formed on the side of the cam 1663 facing the final gear 1632, and the connecting gear 1667 and the final gear 1632 rotate synchronously in a tooth-engagement manner. In addition, the centers of the cam 1663 and the final gear 1632 are also connected by a screw 1665. A gasket 1666 can be disposed on the side of the cam 1663 facing the second housing 1662. The gasket 1666 abuts against the cam 1663, and the screw 1665 passes through the gasket 1666 to thereby define the axial position of the final gear 1632 relative to the cam 1663. The above-mentioned first housing 1661 constitutes the output end of the clutch device, and the above-mentioned cam 1663 constitutes the input end of the clutch device.

[0048] A notch 16621 that radially recesses outward is formed on the inner peripheral wall of the second housing 1662. The above-mentioned ball 1664 is also disposed within the second housing 1662. In this embodiment, there are two notches 16621 arranged at intervals in the circumferential direction, and the central angle between the two notches 16621 can be 180°. There are also two balls 1664. The number of notches 16621 and balls 1664 can also be other even numbers. A retaining ring 1668 is sleeved on the outer periphery of the connecting gear 1667, and its outer diameter is adapted to the inner diameter of the second housing 1662, thereby confining the ball 1664 within the second housing 1662 to prevent the ball 1664 from falling. The cam 1663 is spindle-shaped and is arranged axially symmetrically, with both ends protruding towards the inner peripheral wall of the second housing 1662 and adjacent to each other, thereby dividing the space within the second housing 1662 into two parts, and each ball 1664 is placed in one of the parts.

[0049] The clutch device further includes a neck 16611 extending from the end of the first housing 1661 in a direction away from the final gear 1632. The neck 16611 is integrally formed with the first housing 1661. The outer periphery of the neck 16611 and the mounting bracket 114, and the outer periphery of the final gear 1632 and the mounting bracket 114 are respectively connected by bearings 1669.

[0050] The clutch device is disposed inside the roller 14 at least in a portion between its input end and output end, whereby the volume of the entire control device can be greatly reduced, the weight is reduced accordingly, and when the control device is installed and used, the power required by the two motors is reduced, playing a role in reducing power consumption. In this embodiment, the input end and the output end are also located inside the roller 14.

[0051] When the first motor 161 is in a powered-off state, the control cam 1663 rotates in the reverse direction, and the ball 1664 moves a certain distance along the inclined outer wall of the cam 1663 towards the center of the cam 1663. When pulling the curtain by hand, the roller 14 rotates, thereby driving the first housing 1661 to rotate, and driving the second housing 1662 to rotate through the first housing 1661. At this time, since the ball 1664 does not contact the inner peripheral wall of the second housing 1662, the rotation of the roller 14 will not drive the cam 1663 to rotate, that is, there is no resistance during the rotation process, realizing the hand-pull start function, that is, the "disengagement" function of the clutch.

[0052] When the first motor 161 is in a powered-on state, it drives the final-stage gear 1632 to rotate. The cam 1663 drives the ball 1664 to rotate inside the second housing 1662. During the rotation of the cam 1663, the ball 1664 moves along the inclined outer wall of the cam 1663 towards the end of the cam 1663. Thus, the end of the cam 1663 presses part of the ball 1664 into the notch 16621 on the inner peripheral wall of the second housing 1662 to achieve clamping. Furthermore, the rotation of the cam 1663 can drive the second housing 1662 to rotate, thereby driving the first housing 1661 and the roller 14 to rotate accordingly, and thus driving the curtain to run through the transmission mechanism 163, that is, realizing the "engagement" function of the clutch.

[0053] There are at least two magnets 170 disposed inside the first housing 1661, distributed along the circumferential direction. Two Hall elements 1641 are disposed at intervals on the first control circuit board 164 adjacent to the magnets 170 (see Figure 5 as shown by the dashed line in, that is, it is disposed on the side of the first control circuit board 164 facing the roller 14), whereby the magnet 170 and the Hall element 1641 constitute a stroke detection device.

[0054] A coaxial lead screw 1621 is disposed on the output shaft of the second motor 162, or the output shaft of the second motor 162 is in the form of a lead screw 1621. A threaded sleeve 1131 is disposed on the base 113, and the lead screw 1621 is inserted into the threaded sleeve 1131 to make the two threadedly connected. The second motor 162 is fixed on the second bracket 1142, and the lead screw 1621 extends in the first direction. Thus, when the second motor 162 is started, it can move linearly closer to or away from the base 13, thereby driving the entire mounting bracket 114 to move linearly closer to or away from the base 13 (move linearly along the first direction X).

[0055] See Figure 8 and Figure 9 The pull rod 15 is preferably cylindrical, and a guide groove 152 is formed on its outer peripheral wall. The guide groove 152 extends along the axial direction and the circumferential direction of the outer peripheral wall of the pull rod 15. The two ends of the guide groove 152 are arranged out of alignment in the circumferential direction of the outer peripheral wall of the pull rod 15 and are also arranged out of alignment in the axial direction of the pull rod 15, that is, one end of the guide groove 152 is close to the first end 1111 of the housing 111, and the other end is close to the base 112. At the same time, there is a certain angle between the projections of the two ends of the guide groove 152 on the radial section of the pull rod 15 and the axis of the pull rod 15. A through hole 1143 for the pull rod 15 to pass through is formed on the first support 1141, and a protrusion 1144 that cooperates with the guide groove 152 is arranged on the inner wall of the through hole 1143. The protrusion 1144 can penetrate into the guide groove 152. In this embodiment, for the convenience of stable transmission, there are three guide grooves 152 arranged at intervals in the circumferential direction, and there are three corresponding protrusions 1144 arranged at intervals in the circumferential direction.

[0056] Thus, when the second motor 162 is started, the lead screw 1621 rotates, pushing the second motor 162 to move linearly relative to the base 113, so that the mounting bracket 114 moves linearly relative to the base 113. Thus, through the cooperation of the guide groove 152 and the protrusion 1144, the pull rod 15 can rotate accordingly during the linear movement of the mounting bracket 114, thereby driving the connecting rod 151 to rotate, so that the relative arrangement direction of the two hanging wheels 13 is converted between the third direction Z and the second direction Y.

[0057] A key 18 is also arranged on the housing 111 of the control device 1. The key 18 can be operated from the outside of the housing 111, and the key 18 is electrically connected to the first control circuit board 164 and the second control circuit board 165. The first motor 161 and the second motor 162 can be controlled by pressing the key 18. For example, during installation, when the key 18 is pressed, the second motor 162 is started, so that the pull rod 15 rotates and extends; for example, the stroke can be set: press the key 18 three times (the first stroke point) - the app remotely controls the operation to the second stroke point - press the key 18 three times (the second stroke point). For example, the stroke can be deleted: press the key 18 five times; for example, the disassembly can be controlled: press the key 18 twice, and the second motor 162 flips. In the state of holding the control device 1 by hand, the control device 1 can be safely disengaged from the track 2 to complete the disassembly. After all the above key 18 operations, the operation indicator light will flash and a sound prompt will be issued.

[0058] The battery assembly 12 is detachably connected to the housing 111. The battery assembly 12 includes a battery case 121, a battery 122, a battery bracket 123, a button 124, a battery cover 125, and a third control circuit board 126. The battery 122 is a rechargeable battery and can supply power to the first control circuit board 164 (the first motor 161) and the second control circuit board 165 (the second motor 162). The battery 122 and the third control circuit board 126 are fixedly arranged on the battery bracket 123, and the above three are all arranged inside the battery case 121. The battery cover 125 is arranged at the end of the battery case 121 and can be positioned and aligned with the base 113 and fit. A charging control circuit of the battery 122 is arranged on the third control circuit board 126.

[0059] For the convenience of disassembling and assembling the battery assembly 12, at least part of the button 124 extends out of the battery case 121. A first button hole 1211 is opened at the position of the battery case 121 corresponding to the button 124, and a second button hole 1113 is opened at the position of the housing 111 corresponding to the button 124 for the button 124 to extend out. A retaining edge 1241 is arranged on the part of the button 124 located inside the battery case 121. The retaining edge 1241 extends outward from the periphery of the button 124, so that the size of the retaining edge 1241 is larger than that of the first button hole 1211, thereby preventing the button 124 from detaching from the battery case 121. A return spring 127 is arranged between the end of the button 124 located inside the battery case 121 and the battery bracket 123, so that the button 124 and the battery bracket 123 interact to keep the tendency of extending out of the battery case 121 away from the battery bracket 123. When an external force is applied to the button 124 and the button 124 is pressed into the housing 111, the return spring 127 contracts, and the button 124 penetrates into the housing 111 and disengages from the second button hole 1113 on the housing 111. Thus, the battery assembly 12 is no longer connected to the housing 111, and the battery assembly 12 can be removed. When the battery assembly 12 needs to be installed, the battery assembly 12 is inserted from the second end 1112 of the housing 111. At this time, the button 124 is blocked by the wall of the housing 111, so that the return spring 127 is compressed. When the battery assembly 12 is inserted to align the button 124 with the second button hole 1113 of the housing 111, the button 124 is no longer stressed, the return spring 127 resets, and pushes the button 124 outward of the housing 111. The button 124 passes through the second button hole 1113 of the housing 111, so that the button 124 and the housing 111 are limited, and the installation of the battery assembly 12 and the housing 111 is completed.

[0060] A charging interface 1261 is also opened on the third control circuit board 126. Thus, when the battery 122 needs to be charged, the battery assembly 12 can be disassembled, and the battery 122 can be charged by connecting the charging data cable to the charging interface 1261 and an external power source. The charging interface 1261 can be in contact with the outside of the housing 111.

[0061] Before installation, refer to Figure 13 and Figure 14 . The control device 1 is in an initial state. At this time, the mounting bracket 114 is in a first position close to the base 113, the second motor 162 is close to the base 113, the connecting rod 151 is located outside the first end 1111 of the housing 111, and the two hanging wheels 13 are arranged oppositely in the third direction Z. Refer to Figures 1 to 3 again. During installation, align the hanging wheels 13 with the opening 22 of the track 2. The length direction of the track 2 is the third direction Z, and the width direction of the track 2 is the second direction Y. Then start the second motor 162, so that the lead screw 121 rotates relative to the threaded sleeve 1131 on the base 113, thereby pushing the second motor 162 in a direction away from the base 113 (towards the first end direction close to the housing 111). As a result, the entire mounting bracket 114 is pushed in a direction away from the base 113 and close to the track 2 (the roller 14 moves close to the bottom of the track 2 along with the mounting bracket 114), and the hanging wheels 13 pass through the opening 22 of the track 2 and enter the inside of the track 22. At the same time, through the cooperation of the guide groove 152 of the pull rod 15 and the protrusion 1144 of the mounting bracket 114, the pull rod 15 rotates around its own axis, driving the connecting rod 151 to rotate until the hanging wheels 13 are rotated to be arranged at intervals in the second direction Y, that is, the two hanging wheels 13 on the same pull rod 15 are arranged at intervals in the width direction of the track 2. The hanging wheels 13 are supported on the bottom surfaces of the track body 21 on both sides of the opening 22, and at the same time, the roller 14 abuts against the bottom of the track 2, thereby completing the installation of the control device 1 and the track 2.

[0062] After the installation is completed, start the first motor 161, and the roller 14 rotates relative to the track 2, thereby pushing the curtain fabric to open or close. For the connection relationship and pushing method among the track 2, the control device 1 and the curtain fabric, reference can be made to the Chinese patent with the application number 201721904169.5 of the applicant.

[0063] The first motor 161 and the second motor 162 can be controlled by using a remote control, or by using a wired-connected controller, or by using a smart terminal.

[0064] In this embodiment, the pressing force between the hanging wheels 13 and the track 2 and between the roller 14 and the track 2 can be adjusted by controlling the stroke of the second motor 162. By setting a stroke detection device, the running stroke of the first motor 161 can be controlled. The stroke points can be only the initial point and the end point, or further a third point or more points can be set. At the same time, preferably, the first motor 161 and the second motor 162 can be controlled to stop and start through a remote app during the running process.

[0065] Due to the clutch device, when the manual curtain pulls the control device 1, it will not be affected by the resistance from the first motor (overcoming the internal resistance of the motor). Further, the manual start function can be realized. When the manual curtain drives the control device 1 to move a certain distance in the state where the motor is not working, the stroke detection device detects the displacement and starts the first motor 161, realizing the start of the manual curtain pulling without the need for external remote control or app operation.

[0066] Embodiment 2

[0067] See Figure 15 and Figure 16 , in this embodiment, different from the above Embodiment 1, the track 2 is in the form of a Roman rod, the connecting rod 151 is in the form of an arc and can be sleeved on the outer periphery of the track 2, and the hanging wheels 13 are arranged at intervals along the extending direction of the connecting rod 151 on the connecting rod 151.

[0068] Embodiment 3

[0069] See Figure 17 and Figure 18 , in this embodiment, different from the above Embodiment 1, the track 2 is an I-beam rail, there are two U-shaped connecting rods 151, one arm of the U-shape of each connecting rod 151 is connected to the pull rod 15, and a hanging wheel 13 is arranged on the other arm. The two hanging wheels 13 on each connecting rod 151 respectively abut against the bottom upper surface of the I-beam rail.

[0070] Embodiment 4

[0071] See Figures 19 to 21 , in this embodiment, the difference from the above Embodiment 1 is that the mounting bracket 114 is fixed in the housing 111, the battery 122 is also fixed in the housing 111, and the charging interface 1261 can be in contact with the outside of the housing 111.

[0072] A transmission bracket 17 is also arranged in the housing 111. The transmission bracket 17 is equivalent to the base 113 in Embodiment 1, but the difference is that the transmission bracket 17 is movably arranged in the housing 111, the second motor 162 is fixed in the housing 111, and the pull rod 15 is movably connected to the housing 111. A threaded sleeve 1131 is arranged on the transmission bracket 17, and the transmission bracket 17 is respectively rotatably connected to the pull rod 15. Similarly, the pull rod 15 cannot linearly move relative to the transmission bracket 17 in the first direction X. In Embodiment 1, the roller 14 can be lifted and lowered, while the hanging wheel 13 only rotates with the connecting rod 151. In this embodiment, the roller 14 does not move, and the hanging wheel 13 rotates with the connecting rod 141 while lifting and lowering.

[0073] Thus, when the second motor 162 is started, the drive support 17 can be driven to approach the track 2 in the first direction X, driving the pull rod 15 to approach the track 2, so that the hanging wheel 13 passes through the opening 22 of the track 2 and enters the track 2. Since the mounting bracket 114 is fixed in the housing 111, through the cooperation of the protrusion 1144 of the mounting bracket 1114 and the guide groove 152 of the pull rod 15, the pull rod 152 can rotate relative to the drive support 17 around its own axis, thereby driving the connecting rod 151 to rotate until the hanging wheel 13 is rotated to be arranged at intervals in the second direction Y, completing the installation of the control device 1.

[0074] The matching structure of the track 2 and the hanging wheel 13 in the second embodiment and the third embodiment can also be used in this embodiment.

Claims

1. An electric curtain control device, comprising a housing (111) and a pull rod (15). The housing (111) has a first end (1111) and a second end (1112) oppositely arranged in a first direction (X). The pull rod (15) extends along the first direction (X) and can rotate about its own axis. A hanger wheel (13) for cooperating with the track (2) of the electric curtain is provided at the end of the pull rod (15) extending outside the first end (1111) of the housing (111). The hanger wheel (13) can rotate with the pull rod (15). The control device further includes a mounting bracket (114) arranged in the housing (111), a roller (14) for cooperating with the track (2) of the electric curtain, and a first motor (161) for driving the roller (14) to rotate. The roller (14) is rotatably arranged on the mounting bracket (114). The rotation axis of the roller (14) extends along a second direction (Y). The first direction (X) and the second direction (Y) are perpendicular to each other. It is characterized in that: A clutch device is provided between the first motor (161) and the roller (14) so that the connection between the first motor (161) and the roller (14) can be selectively achieved. A second motor (162) for driving the mounting bracket (114) to linearly move in the first direction (X) is further provided inside the housing (111). The pull rod (15) passes through the mounting bracket (114), so that while the pull rod (15) and the mounting bracket (114) linearly move relative to each other in the first direction (X), the pull rod (15) can rotate relative to the mounting bracket (114). A transmission mechanism (163) is provided between the first motor (161) and the roller (14). The output end of the transmission mechanism (163) is connected to the roller (14) through a clutch device. The clutch device has an input end connected to the transmission mechanism (163) and an output end connected to the roller (14). At least a part between the input end and the output end of the clutch device is located inside the roller (14).

2. The electric curtain control device according to claim 1, wherein: The clutch device includes a first housing (1661) provided inside the roller (14) and rotating synchronously with the roller (14), a second housing (1662) provided inside the first housing (1661) and rotating synchronously with the first housing (1661), and a cam (1663) provided inside the second housing (1662) and rotating synchronously with the output end of the transmission mechanism (163). The cam (1663) serves as the input end of the clutch device, the first housing (1661) serves as the output end of the clutch device. A recessed notch (16621) is provided on the inner peripheral wall of the second housing (1662). A ball (1664) cooperating with the cam (1663) is further provided inside the second housing (1662). The end of the cam (1663) can press the ball (1664) into the notch (16621) so that the cam (1663) and the second housing (1662) rotate synchronously, or the ball (1664) can disengage from the notch (16621) so that the cam (1663) and the second housing (1662) are separated.

3. The electric curtain control device according to claim 2, characterized in that: A magnet (170) is provided inside the first housing (1661). A first control circuit board (164) for controlling the first motor (161) is further provided inside the housing (111). A Hall element (1641) is provided adjacent to the magnet (170) on the first control circuit board (164). The magnet (170) and the Hall element (1641) constitute a stroke detection device.

4. The electric curtain control device according to claim 1, wherein: The pull rod (15) is cylindrical. A guiding groove (152) is formed on the outer peripheral wall of the pull rod (15). The guiding groove (152) extends along the axial direction of the pull rod (15) and the circumferential direction of the outer peripheral wall. The two ends of the guiding groove (152) are arranged in a circumferential dislocation and an axial dislocation on the outer peripheral wall of the pull rod (15). A through hole (1143) for the pull rod (15) to pass through is formed on the mounting bracket (114), and a protrusion (1144) cooperating with the guiding groove (152) is arranged on the inner wall of the through hole (1143).

5. The electric curtain control device according to claim 1 or 4, characterized in that: The mounting bracket (114) is movably arranged in the housing (111). The second motor (162) is fixedly connected to the mounting bracket (114). A base (113) is fixedly arranged in the housing (111). The pull rod (15) is rotatably connected to the base (113). A threaded sleeve (1131) is arranged on the base (113). The output end of the second motor (162) is threadedly connected to the threaded sleeve (1131).

6. The electric curtain control device according to claim 1 or 4, characterized in that: A battery assembly (12) for supplying power to the first motor (161) and the second motor (162) is further arranged in the housing (111). The battery assembly (12) can be inserted into the housing (111) from the second end (1112) of the housing (111) and is detachably connected to the housing (111). The battery assembly (12) includes a battery case (121), a battery (122), a battery bracket (123) and a button (124). The battery (122) is a rechargeable battery. The battery (122) is fixedly arranged on the battery bracket (123), and both the battery (122) and the battery bracket (123) are fixedly arranged in the battery case (121). The button (124) can move towards the battery bracket (123) to disengage the battery assembly (12) from the housing (111), and the button (124) maintains a tendency to protrude out of the battery case (121) and the housing (111) in a direction away from the battery bracket (123) so that the battery assembly (12) and the housing (111) are connected.

7. An electric curtain applying the control device as described in any one of claims 1 to 6, comprising a track (2), characterized in that: The width direction of the track (2) is the second direction (Y), and the length direction of the track (2) is the third direction (Z). The first direction (X), the second direction (Y) and the third direction (Z) are perpendicular to each other pairwise. The hanging wheel (13) can be engaged with the track (2), and the roller (14) can rollingly cooperate with the bottom surface of the track (2).

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