Motor for multi-curtain system
By integrating the motor of the multi-curtain system into a single housing and rationally arranging circuit boards and magnetic rings in the axial and radial spatial layout, the problems of low integration and mutual interference of the multi-curtain system motors are solved, achieving efficient installation and a thinner design for the motor.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LEWU (FOSHAN) HIGH-TECH CO LTD
- Filing Date
- 2025-05-06
- Publication Date
- 2026-04-17
AI Technical Summary
Existing multi-curtain systems have low motor integration, low installation efficiency, and the possibility of mutual interference between motors.
The first and second motors are integrated into one housing and equipped with four gearboxes to achieve four-output control. The shafts of the output ends are on the same plane. The circuit boards and magnetic rings are arranged in a reasonable axial and radial spatial layout to simplify the structure and avoid mutual interference.
It achieves a high degree of motor integration, is compact in size, easy and quick to install, has smooth control, minimizes the size of the casing, and is lightweight and thin overall.
Smart Images

Figure CN224138850U_ABST
Abstract
Description
Technical fields:
[0002] This utility model relates to a motor for a multi-curtain system. Background technology:
[0004] Existing multi-curtain systems, such as those that simultaneously function as day curtains and night curtains, use two separate motors to control the day curtains and night curtains, which are structurally and spatially independent. This results in each motor being installed separately in the track of the multi-curtain system, leading to low integration, low installation efficiency, and the potential for interference between the motors. Summary of the Invention:
[0006] To overcome the problems of low integration, low installation efficiency, and potential interference between motors in existing multi-curtain systems, this utility model provides a motor for multi-curtain systems.
[0007] An electric motor for a multi-curtain system includes a housing, within which a first motor and a second motor are mounted in parallel arrangement. One end of the first motor is connected to a first gearbox, and the other end is connected to a second gearbox. One end of the second motor is connected to a third gearbox, and the other end is connected to a fourth gearbox. The output ends of the first and second gearboxes are used to drive the first curtain, and the output ends of the third and fourth gearboxes are used to drive the second curtain. The axes of the output ends of the first and second gearboxes are collinear, the axes of the output ends of the third and fourth gearboxes are collinear, and the axes of the output ends of the first, second, third, and fourth gearboxes are in the same plane.
[0008] This utility model relates to a motor for multi-curtain systems. It integrates a first motor and a second motor within a single housing and is equipped with four gearboxes, enabling four-output control to manage different first and second curtains. The design is simple, compact, and easy, quick, and efficient to install. Furthermore, the shafts of all output ends are on the same plane, resulting in a rational structural layout that prevents interference between output controls. This also minimizes the size of the housing, leading to a highly integrated four-output motor product that is thinner and lighter overall. Attached image description:
[0010] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0011] Figure 1 This is a schematic diagram of the structure of the motor according to an embodiment of the present utility model. Figure 1 ;
[0012] Figure 2 This is a schematic diagram of the structure of the motor according to an embodiment of the present utility model. Figure 2 ;
[0013] Figure 3 for Figure 1 Structural explosion Figure 1 ;
[0014] Figure 4 This is a cross-sectional view of the motor structure according to an embodiment of the present utility model;
[0015] Figure 5 for Figure 4 AA section view;
[0016] Figure 6 for Figure 4 BB section view;
[0017] Figure 7 for Figure 4 CC section view;
[0018] Figure 8 for Figure 4 DD sectional view;
[0019] Figure 9 A partial structural cross-sectional view of the motor according to an embodiment of this utility model;
[0020] Figure 10 Explosion of the structure of the motor in this embodiment of the utility model Figure 2 . Detailed implementation method:
[0022] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0023] When ordinal numbers such as "first" and "second" are mentioned in the embodiments of this utility model, unless they actually express the meaning of order according to the context, they should be understood as being used only for differentiation.
[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0025] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, a motor for a multi-curtain system includes a housing 1. A first motor 21 and a second motor 22, arranged parallel to each other, are installed inside the housing 1. One end of the first motor 21 is connected to a first gearbox 31, and the other end is connected to a second gearbox 32. One end of the second motor 22 is connected to a third gearbox 33, and the other end is connected to a fourth gearbox 34. The output ends of the first gearbox 31 and the second gearbox 32 are used to drive the first curtain, and the output ends of the third gearbox 33 and the fourth gearbox 34 are used to drive the second curtain. The axes of the output ends of the first gearbox 31 and the second gearbox 32 are on the same straight line, the axes of the output ends of the third gearbox 33 and the fourth gearbox 34 are on the same straight line, and the axes of the output ends of the first gearbox 31, the second gearbox 32, the third gearbox 33, and the fourth gearbox 34 are on the same plane.
[0026] This utility model relates to a motor for multi-curtain systems. It integrates a first motor and a second motor within a single housing and is equipped with four gearboxes, enabling four-output control to manage different first and second curtains. The design is simple, compact, and easy, quick, and efficient to install. Furthermore, the shafts of all output ends are on the same plane, resulting in a rational structural layout that prevents interference between output controls. This also minimizes the size of the housing, leading to a highly integrated four-output motor product that is thinner and lighter overall.
[0027] Furthermore, as a preferred embodiment and not a limitation thereof, such as Figure 3 As shown, one end of the outer casing 1 has a first positioning hole 11 and a third positioning hole 13 arranged vertically, and the other end of the outer casing 1 has a second positioning hole 12 and a fourth positioning hole 14 arranged vertically. The output shaft of the first gearbox 31 is axially aligned with the first positioning hole 11, the output shaft of the second gearbox 32 is axially aligned with the second positioning hole 12, the output shaft of the third gearbox 33 is axially aligned with the third positioning hole 13, and the output shaft of the fourth gearbox 34 is axially aligned with the fourth positioning hole 14. The structure is simple, the motor is highly integrated, the overall design is thinner and lighter, and the controls of each curtain do not interfere with each other, resulting in smoother and more seamless control.
[0028] Furthermore, as a preferred embodiment and not a limitation thereof, such as Figure 3As shown, the first motor 21 and the second gearbox 32 are spaced apart and have a reserved axial first space, while the second motor 22 and the fourth gearbox 34 are also spaced apart and have a reserved axial second space. A second circuit board 42 is provided on one side of both the axial first and axial second spaces. This second circuit board is equipped with a rectifier module and a transformer module. Placing the second circuit board in the reserved axial space makes full use of the axial space, resulting in a reasonable structural layout that is conducive to the high integration and thinning of motor products.
[0029] Furthermore, as a preferred embodiment and not a limitation thereof, such as Figure 3 As shown, the upper left corner of the second circuit board 42 is located at any radial position between the axis of the first motor 21 and the rear vertex of its outer contour; the upper right corner of the second circuit board 42 is located at any radial position between the axis of the second gearbox 32 and the rear vertex of its housing outer contour; the lower left corner of the second circuit board 42 is located at any radial position between the axis of the second motor 22 and the rear vertex of its outer contour; and the lower right corner of the second circuit board 42 is located at any radial position between the axis of the fourth gearbox 34 and the rear vertex of its housing outer contour. This fully and rationally utilizes the first axial space and the second axial space, bringing the second circuit board as close as possible to the axes of the first and second motors to minimize the sensing distance between the Hall sensor and the magnetic ring on the motor output shaft; simultaneously, as... Figure 3 , Figure 4 As shown, relatively large components on the second circuit board, such as the rectifier module and transformer module 421, can be reasonably positioned within the axial space between the first and second motor output shafts, extending radially from the surface of the second circuit board across the axis of the motor output shaft, without any interference or spatial limitations. Figure 7 As shown; the capacitor can be located in the axial space below the output shaft of the second motor, so that the relatively large components on the second circuit board can be arranged scientifically and reasonably, while achieving the effect of minimizing the volume of the outer casing 1.
[0030] Furthermore, as a preferred embodiment rather than a limitation, a first magnetic ring 211 is fitted onto the output shaft between the first motor 21 and the second gearbox 32, and a pair of Hall sensors 420 are respectively provided on the upper and lower sides of the first magnetic ring 211 on the second circuit board 42; a second magnetic ring 222 is fitted onto the output shaft between the second motor 22 and the fourth gearbox 34, and another pair of Hall sensors 420 are respectively provided on the upper and lower sides of the second magnetic ring 222 on the second circuit board 42. The structure is simple and facilitates the control of each motor.
[0031] Furthermore, such as Figure 6As shown, and not as a limitation, in this embodiment, the space between the lower vertex P1 and the rear vertex P2 of the outer contour of the first motor 21, and the space between the upper vertex P3 and the rear vertex P4 of the outer contour of the second motor 22, together form a radial first space; as Figure 5 As shown, the area between the lower vertex P5 and the rear vertex P6 of the outer contour of the first gearbox 31, and the area between the upper vertex P7 and the rear vertex P8 of the outer contour of the third gearbox 33, together form a radial second space. A first circuit board 41 is installed within both the radial first and radial second spaces. This first circuit board 41 is a control board, electrically connected to a second circuit board 42, which in turn is electrically connected to the first motor 21 and the second motor 22. By fully utilizing the radial space on one side of the first gearbox, the third gearbox, the first motor, and the second motor, the second circuit board is positioned within this radial space, not exceeding the vertices of the outer contours of the gearbox and motor housings. This perfectly integrates the first circuit board into the radial space, resulting in a scientific and reasonable layout while simultaneously minimizing the volume of the housing 1.
[0032] Furthermore, as a preferred embodiment and not a limitation thereof, such as Figure 2 As shown, a setting key 10 is provided on the outer casing 1 between the first positioning hole 11 and the third positioning hole 13. The setting key 10 is electrically connected to the first circuit board 41. The structure is simple and the motor setting is convenient and quick.
[0033] Furthermore, as a preferred embodiment and not a limitation thereof, such as Figure 3 As shown, a connecting locking device is also provided inside the housing 1 on one side of the second gearbox 32 and the fourth gearbox 34. The connecting locking device includes a body 5 that can move up and down. The body 5 is provided with an upper locking buckle 51 and a lower locking buckle 52. A first unlocking groove 17 is provided on the housing 1 corresponding to the position of the upper locking buckle 51, and a second unlocking groove 18 is provided on the housing 1 corresponding to the position of the lower locking buckle 52. The upper locking buckle 51 protrudes from the first unlocking groove 17, and the lower locking buckle 52 protrudes from the second unlocking groove 18. A second positioning hole 12 and a fourth positioning hole 14 are provided on the housing. The main body 5 is located between the first unlocking slot 17 and the second unlocking slot 18. A first oblong hole 53 and a second oblong hole 54 are formed between the upper locking buckle 51 and the lower locking buckle 52. The output end of the second gearbox 32 passes through the first oblong hole 53 and axially engages with the second positioning hole 12. The output end of the fourth gearbox 34 passes through the second oblong hole 54 and axially engages with the fourth positioning hole 14. The main body 5 can move up and down within the longitudinal range of the first unlocking slot 17, the second unlocking slot 18, the first oblong hole 53, and the second oblong hole 54. The structure is simple, and when the motor is connected to the load, it can be fixed to the load by the upper locking buckle 51 and the lower locking buckle 52, making connection convenient.
[0034] Furthermore, as a preferred embodiment and not a limitation thereof, such as Figure 9 , Figure 10 As shown, a stop block 55 extends from one side of the main body 5 toward the fourth gearbox 34. A positioning block 19 corresponding to the fourth gearbox 34 is located below the stop block 55 on the rear sidewall of the outer casing 1. A return spring 56, providing power for the main body 5 to automatically move upwards to reset, is located between the stop block 55 and the positioning block 19. The structure is simple, and the reset structure is perfectly integrated into the gap between the fourth gearbox and the positioning block on the rear sidewall of the outer casing. The layout is scientific and reasonable, while simultaneously achieving the effect of minimizing the volume of the outer casing 1.
[0035] Furthermore, as a preferred embodiment and not a limitation thereof, such as Figure 9 , Figure 10 As shown, an unlocking hole 100 is provided on the side wall of the outer casing 1, and an unlocking block 57 protrudes from the main body 5 at the position corresponding to the unlocking hole 100. At least part of the unlocking block 57 protrudes from the unlocking hole 100. In the locked state, the lower end of the unlocking block 57 is basically flush with the lower end of the return spring 56. The structural layout is reasonable and the reset effect is good.
[0036] Furthermore, as a preferred embodiment and not a limitation thereof, such as Figure 8 As shown, a first guide block 101 protrudes above the unlocking hole 100 on the inner wall of the outer casing 1, a second guide block 102 is formed on the inner wall of the unlocking hole 100, and a third guide block 103 protrudes below the unlocking block 57 on the inner wall of the outer casing. The ends of each guide block are basically on the same longitudinal plane, thus facing the side of the main body 5 and forming a sliding guide engagement relationship when the main body 5 moves up and down. The structure is simple and the sliding engagement is smooth.
[0037] Specifically, as a preferred embodiment rather than a limitation, the multi-curtain system described in this embodiment can have a first curtain that can be a day curtain and a second curtain that can be a night curtain.
[0038] More specifically, as a preferred embodiment rather than a limitation, the outer shell 1 includes a front shell 15 and a rear shell 16 that cooperate with each other.
[0039] The above description provides one or more embodiments in conjunction with specific content, and does not imply that the specific implementation of this utility model is limited to these descriptions. Any methods or structures that are similar to or identical to those of this utility model, or any technical deductions or substitutions made based on the concept of this utility model, should be considered within the protection scope of this utility model.
Claims
1. A motor for a multi-shade system comprising a housing, characterized in that, The housing contains a first motor and a second motor arranged in parallel to each other. One end of the first motor is connected to the first gearbox and the other end is connected to the second gearbox. One end of the second motor is connected to the third gearbox and the other end is connected to the fourth gearbox. The output ends of the first and second gearboxes are used to drive the first curtain, and the output ends of the third and fourth gearboxes are used to drive the second curtain; the axes of the output ends of the first and second gearboxes are on the same straight line, the axes of the output ends of the third and fourth gearboxes are on the same straight line, and the axes of the output ends of the first, second, third, and fourth gearboxes are on the same plane.
2. A motor for a multi-shade system as defined in claim 1, wherein, One end of the housing is provided with a first positioning hole and a third positioning hole arranged vertically, and the other end of the housing is provided with a second positioning hole and a fourth positioning hole arranged vertically. The output shaft of the first gearbox is axially aligned with the first positioning hole, the output shaft of the second gearbox is axially aligned with the second positioning hole, the output shaft of the third gearbox is axially aligned with the third positioning hole, and the output shaft of the fourth gearbox is axially aligned with the fourth positioning hole.
3. A motor for a multi-curtain system as claimed in claim 1 or 2, characterized in that, The first motor and the second gearbox are spaced apart and have a reserved first axial space, while the second motor and the fourth gearbox are also spaced apart and have a reserved second axial space. A second circuit board is provided on one side of the first axial space and the second axial space.
4. A motor for a multi-shade system as defined in claim 3, wherein, The upper left corner of the second circuit board is located at any radial position between the axis of the first motor and the rear vertex of its outer contour. The upper right corner of the second circuit board is located at any radial position between the axis of the second gearbox and the rear vertex of its housing outer contour. The lower left corner of the second circuit board is located at any radial position between the axis of the second motor and the rear vertex of its outer contour. The lower right corner of the second circuit board is located at any radial position between the axis of the fourth gearbox and the rear vertex of its housing outer contour.
5. A motor for a multi-curtain system as described in claim 4, characterized in that, A first magnetic ring is fitted on the output shaft between the first motor and the second gearbox, and a pair of Hall sensors are respectively provided on the upper and lower sides of the first magnetic ring on the second circuit board; a second magnetic ring is fitted on the output shaft between the second motor and the fourth gearbox, and another pair of Hall sensors are respectively provided on the upper and lower sides of the second magnetic ring on the second circuit board.
6. A motor for a multi-shade system as defined in claim 4, wherein, The first radial space is formed by the lower and rear vertices of the outer contour of the first motor and the upper and rear vertices of the outer contour of the second motor. The second radial space is formed by the lower and rear vertices of the outer contour of the first gearbox and the upper and rear vertices of the outer contour of the third gearbox. A first circuit board is provided in the first and second radial spaces.
7. A motor for a multi-shade system as defined in claim 6, wherein, A setting key is provided on the outer casing between the first positioning hole and the third positioning hole, and the setting key is electrically connected to the first circuit board.
8. A motor for a multi-shade system as defined in claim 7, wherein, A connection locking device is also provided inside the housing on one side of the second and fourth gearboxes. The connection locking device includes a main body that can move up and down. The main body is provided with an upper lock and a lower lock. A first unlocking groove is provided on the housing corresponding to the position of the upper lock, and a second unlocking groove is provided on the housing corresponding to the position of the lower lock. The upper lock protrudes from the first unlocking groove, and the lower lock protrudes from the second unlocking groove. The second positioning hole and the fourth positioning hole are provided on the outer shell and located between the first unlocking groove and the second unlocking groove. The main body is provided with a first waist-shaped hole and a second waist-shaped hole between the upper latch and the lower latch. The output end of the second gearbox passes through the first waist-shaped hole and is axially engaged with the second positioning hole. The output end of the fourth gearbox passes through the second waist-shaped hole and is axially engaged with the fourth positioning hole. The main body can move up and down within the longitudinal range of the first unlocking slot, the second unlocking slot, the first waist-shaped hole, and the second waist-shaped hole.
9. A motor for a multi-shade system as defined in claim 8, wherein, A stop block extends from one side of the main body toward the fourth gearbox. A positioning block corresponding to the fourth gearbox is provided on the rear side wall of the outer casing below the stop block. A reset spring is provided between the stop block and the positioning block to provide power for the main body to automatically move upward to reset.
10. A motor for a multi-shade system as defined in claim 9, wherein, An unlocking hole is provided on the side wall of the outer casing, and an unlocking block is protruding on the main body at the position corresponding to the unlocking hole. At least part of the unlocking block is exposed from the unlocking hole. In the locked state, the lower end of the unlocking block is basically flush with the lower end of the return spring.
11. A motor for a multi-shade system as defined in claim 10, wherein, A first guide block is provided on the inner sidewall of the outer casing above the unlocking hole, a second guide block is formed on the inner sidewall of the unlocking hole, and a third guide block is provided on the inner sidewall of the outer casing below the unlocking block. The ends of each guide block are basically on the same longitudinal plane, so as to be opposite to the side of the main body and form a sliding guide engagement relationship when the main body moves up and down.