Dual-output motor

Abstract

The utility model relates to a dual-output motor. The dual-output motor comprises a casing, a power mechanism and an output mechanism, wherein the power mechanism and the output mechanism are mounted on the casing. The power mechanism comprises a driving assembly and a speed reduction assembly connected with the driving assembly. The output mechanism comprises a transmission shaft and a positioning piece fixedly connected with one end of the transmission shaft, the positioning piece is in driving connection with the speed reduction assembly, the positioning piece rotates relative to the machine shell, and the transmission shaft and / or the positioning piece form a first output end. The other end of the transmission shaft penetrates through the speed reduction assembly and the driving assembly and extends towards the other end of the machine shell to form a second output end. The dual-output motor adopts a single power mechanism to realize a dual-output function, so that the assembly matching of the driving assembly and the speed reducing assembly is simplified, and the overall mounting space is reduced. Two output ends are achieved through the same transmission shaft, and the output consistency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, in particular to a dual-output motor. Background Art

[0002] With the continuous advancement of smart home technology, electric curtains, as a typical application, are becoming increasingly popular. Users can easily control the automatic opening and closing of curtains through terminal devices such as smartphones and remote controls, which not only improves convenience but also increases the comfort and safety of the living environment. In electric curtain systems, the drive device is one of the key components to realize its functions.

[0003] The motor in the drive unit is the core of the entire system, providing power. The motor's selection is crucial to the overall system's performance, including its power, efficiency, and lifespan. The reducer in the drive unit converts the high-speed rotation generated by the motor into a speed more suitable for raising and lowering the curtains. By using a two-stage reduction gear, torque output is effectively increased, enabling the curtains to rise and fall smoothly.

[0004] For example, a dual-output motor and a curtain driving device using the dual-output motor are provided in a Chinese public document with publication number CN208094471U. The dual-output motor includes a motor and a control circuit board, and the motor includes a first motor and a second motor.

[0005] Existing dual-output motors utilize a dual-motor structure, or a dual-reducer structure with a single motor. These two types of dual-output motors suffer from complex overall drive mechanisms, numerous assembly parts, and difficulty adapting to the different axial length requirements of dual-output functions. Therefore, improvements are needed. Utility Model Content

[0006] In order to overcome the problems existing in the related art, an embodiment of the present invention provides a dual-output motor to solve the technical problems of the dual-output motor having a complex structure and occupying a large space.

[0007] According to a first aspect of an embodiment of the present utility model, there is provided a dual-output motor, the dual-output motor comprising a housing, a power mechanism mounted on the housing, and an output mechanism;

[0008] The power mechanism includes a driving assembly and a reduction assembly connected to the driving assembly;

[0009] The output mechanism includes a transmission shaft and a positioning member fixedly connected to one end of the transmission shaft, the positioning member is drivingly connected to the reduction assembly, and the positioning member rotates relative to the housing, and the transmission shaft and / or the positioning member constitute a first output end;

[0010] The other end of the transmission shaft passes through the reduction assembly and the driving assembly and extends to the other end of the housing to form a second output end.

[0011] In one embodiment, the output mechanism includes a fixing member installed on the housing and / or the reduction assembly, an accommodating cavity is formed between the fixing member and the reduction assembly, and the positioning member is rotationally limited to the accommodating cavity.

[0012] In one embodiment, the output mechanism includes a rotating member fixedly connected to the transmission shaft, the power mechanism is located between the rotating member and the positioning member, and the rotating member and / or the transmission shaft constitute the second output end.

[0013] In one embodiment, the output mechanism further includes a support member mounted on the housing, the support member is located between the rotating member and the power mechanism, and the transmission shaft is rotatably connected to the support member.

[0014] In one embodiment, the output mechanism further includes a limiting member, which is connected to the support member or the housing. A limiting cavity is formed between the limiting member and the support member, and the rotating member is rotatable and confined in the limiting cavity.

[0015] In one embodiment, the positioning member is meshedly connected with the reduction assembly gear.

[0016] In one embodiment, the reduction assembly includes at least one stage reduction gear set, the reduction gear set includes a central gear, a gear rack, at least one planetary gear mounted on the gear rack, and a sun gear arranged on the housing, and the planetary gears are respectively meshed with the central gear and the sun gear.

[0017] In one embodiment, in the reduction gear set connected to the driving assembly, the central gear, the planetary gears and the sun gear all use matching helical teeth.

[0018] In one embodiment, the reduction gear set is provided with two or more stages, the sun gear in the reduction assembly is integrally formed, the central gear of the second stage and above, the planetary gears and the sun gear all use matching straight teeth, and the positioning member constitutes the gear rack in the final stage reduction gear set.

[0019] In one embodiment, the driving assembly and the reduction assembly are provided with a central through hole, the transmission shaft passes through the central through hole, and the rotation axis of the transmission shaft coincides with the axis of the central through hole.

[0020] The technical solutions provided by the embodiments of the present invention can achieve the following beneficial effects: A dual-output motor utilizes a single power mechanism to achieve dual output functionality, simplifying the assembly of the drive and reduction components and reducing overall installation space. A single drive shaft provides both outputs, resulting in high output consistency. The extended length of the drive shaft is adjustable to accommodate dual-output motors of varying specifications, allowing for flexible size adjustment.

[0021] It should be understood that the above general description and the following detailed description are merely exemplary and explanatory and are not restrictive of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present invention, and together with the description, serve to explain the principles of the present invention.

[0023] Figure 1 FIG1 is a schematic structural diagram showing a dual-output motor according to an embodiment.

[0024] Figure 2 The figure shows a cross-sectional structural diagram of a dual-output motor according to one embodiment.

[0025] Figure 3 yes Figure 2 A local enlarged schematic diagram of point A in the middle.

[0026] Figure 4 The figure shows an exploded structural diagram of a dual-output motor according to an embodiment.

[0027] Figure 5 FIG1 is a schematic diagram showing the cross-sectional structure of a dual-output motor according to an embodiment.

[0028] In the figure, the housing 10; the outlet hole 11; the power mechanism 20; the drive assembly 21; the central through hole 211; the reduction assembly 22; the reduction gear set 23; the sun gear 231; the gear rack 232; the planetary gears 233; the central gear 234; the output mechanism 30; the transmission shaft 31; the positioning member 32; the rotating member 33; the fixing member 34; the limiting member 35; the supporting member 36; and the bearing 37. DETAILED DESCRIPTION

[0029] Among them, the accompanying drawings are only for illustrative purposes and represent only schematic diagrams rather than actual pictures, and should not be understood as limiting the present invention. In order to better illustrate the embodiments of the present invention, some parts of the accompanying drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions may be omitted in the accompanying drawings.

[0030] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inside", "outside" and the like indicate directions or positional relationships, they are based on the directions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0031] In the description of this utility model, unless otherwise expressly specified or limited, when the term "connection" or the like appears to indicate a connection relationship between components, such term should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be internal communication between two components or an interaction relationship between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances.

[0032] like Figures 1 to 5 As shown, the present invention provides a dual-output motor comprising a housing 10, a power mechanism 20 mounted on the housing 10, and an output mechanism 30. The power mechanism 20 comprises a drive assembly 21 and a reduction assembly 22 connected to the drive assembly 21. The drive assembly 21 can be configured as an electric motor or a motor module to output power when energized. Preferably, the housing 10 is configured as a tubular structure with a threading hole formed therein to guide the wires of the power mechanism 20.

[0033] Preferably, the reduction gear assembly 22 includes at least one reduction gear set 23, each of which adjusts the torque and speed of the drive assembly 21. Preferably, the reduction gear set 23 can be configured as one, two, or three stages. Multi-stage speed change can provide a wider range of speed changes.

[0034] The output shaft of the drive assembly 21 is connected to the reduction assembly 22 to adjust the torque and speed output by the drive assembly 21. Preferably, the output shaft of the drive assembly 21 is pluggably connected to the reduction assembly 22 to enable quick plug-and-unplug transmission between the two. Specifically, the output shaft of the drive assembly 21 and the first-stage reduction gear set 23 of the reduction assembly 22 have a convex shaft and groove structure that plugs and fits together. For example, the output shaft of the drive assembly 21 may be provided with a convex shaft structure such as a rectangular shaft, a hexagonal shaft, or a chamfered shaft, and the first-stage reduction gear set 23 may be provided with a matching groove structure to facilitate power transmission.

[0035] The output mechanism 30 includes a transmission shaft 31 and a positioning member 32 fixed to one end of the transmission shaft 31. The positioning member 32 is drivingly connected to the reduction assembly 22 and rotates relative to the housing 10. The transmission shaft 31 and / or the positioning member 32 constitute a first output end. The transmission shaft 31 is a shaft-shaped structural member, and the positioning member 32 is fixedly integrated with the transmission shaft 31. The positioning member 32 is located at one end of the transmission shaft 31 and can both stabilize the position of the transmission shaft 31 and transmit torque to the transmission shaft 31. The positioning member 32 is connected to the reduction assembly 22 to transmit torque and the corresponding speed.

[0036] The transmission shaft 31 is fixed to the positioning member 32, and can synchronously transmit torque and rotational speed. Optionally, when the positioning member 32 serves as a support structure for supporting and limiting the transmission shaft 31, the transmission shaft 31 serves as a power output portion. Optionally, when the positioning member 32 serves as a power output portion, the transmission shaft 31 transmits and outputs the torque through the positioning member 32. When the positioning member 32 serves as a power output portion, the length of the transmission shaft 31 can be shortened, and its structure and transmission method can be flexibly adjusted according to different application scenarios. For example, the positioning member 32 is provided with a groove structure, and the connecting part of the curtain can be inserted into the positioning member 32 by plugging. Alternatively, the positioning member 32 is provided with a convex shaft structure, and the convex shaft structure is plugged into the connecting part of the curtain. Wherein, the groove or the convex shaft is provided with a transmission surface.

[0037] The other end of the transmission shaft 31 passes through the reduction assembly 22 and the drive assembly 21 and extends to the other end of the housing 10 to form a second output end. The transmission shaft 31 passes through the hole area of ​​the reduction assembly 22 and the drive assembly 21 to form a second output end, thereby constructing a dual-output motor.

[0038] Therefore, the dual-output motor utilizes a single power mechanism 20 to achieve dual output functionality, simplifying the assembly of the drive assembly 21 and reduction assembly 22 and reducing overall installation space. The same drive shaft 31 provides both outputs, ensuring high output consistency. The extended length of the drive shaft 31 is adjustable to accommodate dual-output motors of varying specifications, allowing for flexible sizing.

[0039] In one embodiment, the output mechanism 30 includes a fixing member 34 mounted to the housing 10 and / or the reduction assembly 22. A receiving cavity is formed between the fixing member 34 and the reduction assembly 22, and the rotation of the positioning member 32 is confined within the receiving cavity. The fixing member 34 is used to define the axial and radial movement space of the positioning member 32, thereby limiting the range of motion of the positioning member 32. Preferably, the fixing member 34 and the reduction assembly 22 are connected by a snap-fit ​​connection to form a quick-disconnect connection.

[0040] In one embodiment, the output mechanism 30 includes a rotating member 33 fixedly connected to the drive shaft 31. The power mechanism 20 is located between the rotating member 33 and the positioning member 32. The rotating member 33 and / or the drive shaft 31 constitute the second output end. The rotating member 33 and the positioning member 32 are located at either end of the drive shaft 31, jointly supporting and restraining the drive shaft 31 to further maintain the smooth rotation of the drive shaft 31. Optionally, when the rotating member 33 serves as a support structure to support and restrain the drive shaft 31, the drive shaft 31 serves as the power output location. Alternatively, when the rotating member 33 serves as the power output location, the drive shaft 31 transmits torque through the rotating member 33. The structure and transmission method of the rotating member 33 as the power output location can be flexibly adjusted to suit different application scenarios. For example, the rotating member 33 can be provided with a groove structure, and the curtain connection portion can be plugged into the rotating member 33. Alternatively, the rotating member 33 can be provided with a protruding shaft structure, which plugs into the curtain connection portion. Both the groove and the protruding shaft are provided with a transmission surface.

[0041] More preferably, the rotating member 33 and the positioning member 32 are symmetrical structures to form arbitrary end assembly and power output.

[0042] In one embodiment, the output mechanism 30 further includes a support member 36 mounted on the housing 10. The support member 36 is positioned between the rotating member 33 and the power mechanism 20, and the transmission shaft 31 is rotatably connected to the support member 36. The support member 36 is fixedly connected to the housing 10 and divides the space within the housing 10. The transmission shaft 31 passes through the support member 36 and is connected to the rotating member 33. Optionally, the support member 36 is provided with a rotation hole, and the transmission shaft 31 is rotatably connected to the rotation hole. Preferably, the support member 36 is mounted with a bearing 37, and the transmission shaft 31 is connected to the bearing 37 to enhance rotational flexibility.

[0043] Furthermore, the output mechanism 30 includes a stopper 35, which is a sleeve, cover, or hole-shaped structure. The stopper 35 is connected to the support member 36 or the housing 10. A limit cavity is formed between the stopper 35 and the support member 36, and the rotating member 33 is rotatably confined within the limit cavity. The cavity wall defines the outer circumference and end surface of the rotating member 33, thereby preventing radial and axial movement of the rotating member 33.

[0044] Preferably, the stopper 35 is snap-fitted to the support member 36. The support member 36 is provided with a plurality of spaced-apart plug-in bosses and snap-fit ​​grooves distributed between the plug-in bosses. The stopper 35 is provided with mating bosses and snap-fit ​​ribs. The mating bosses are plugged and complementary to the plug-in bosses, and the snap-fit ​​ribs are elastically snap-fitted to the snap-fit ​​grooves. The snap-fit ​​connection between the stopper 35 and the support member 36 forms a flush tubular structure that quickly limits the rotational member 33 and improves assembly convenience.

[0045] In one embodiment, the reduction assembly 22 and the positioning member 32 are connected to transmit torque, and the two can be plugged into each other to transmit torque; or the positioning member 32 and the reduction assembly 22 are connected by gear meshing to transmit torque.

[0046] like Figures 2 to 5 As shown, the reduction assembly 22 is composed of one or more reduction gear groups 23, thereby forming a rich torque and speed adjustment method. Among them, the reduction gear group 23 includes a central gear 234, a gear frame 232, at least one planetary gear 233 installed on the gear frame 232, and a sun gear 231 provided on the housing 10, and the planetary gears 233 are respectively engaged with the central gear 234 and the sun gear 231. The reduction gear group 23 constitutes a planetary gear mechanism to form a reduction transmission. Preferably, the gear frame 232 is equipped with three planetary gears 233, each of which is engaged with the sun gear 231 and the central gear 234 to form a smooth rotation, and the torque and speed output by the gear frame 232 are stable.

[0047] It is worth mentioning that when the reduction assembly 22 is provided with two or more stages, the central gear 234 of the next stage is fixed to the gear rack 232 of the previous stage, and the central gear 234 of the first stage is fixed to the driving assembly 21. The central gear 234 and the planetary gear 233 can adopt straight tooth meshing or helical tooth meshing.

[0048] Further preferably, in the reduction gear set 23 connected to the drive assembly 21, the central gear 234, the planetary gears 233 and the sun gear 231 all use matching helical teeth. That is, the first-stage reduction gear set 23 uses helical gear meshing transmission to reduce noise.

[0049] Preferably, the reduction gear set 23 has two or more stages. The sun gear 231 in the reduction assembly 22 is integrally formed, and the central gear 234, planetary gears 233, and sun gear 231 of the second and subsequent stages all utilize mating spur teeth. The integral formation of the sun gear 231 achieves balanced force distribution throughout the meshing transmission, improving assembly convenience. The second and subsequent stages of the reduction gear set 23 all utilize spur teeth, allowing for a wide range of reduction stages, enabling high torque and low speed output, and highly controllable output torque and speed.

[0050] Preferably, the positioning member 32 constitutes the gear carrier 232 in the final reduction gear set 23. The positioning member 32 serves as an adapter connecting the reduction assembly 22 and the transmission shaft 31. The planetary gears 233 are mounted on the positioning member 32 and mesh with the central gear 234 of the previous stage. This not only makes rotation more stable, but also allows for controllable axial and radial movable positions of the positioning member 32, and the installation position space is controllable.

[0051] Preferably, a torque hole is provided at the center of the positioning member 32, and the torque hole is provided with at least one torque surface for transmitting power. The transmission shaft 31 is provided with a transmission surface that matches the torque hole to achieve matching transmission.

[0052] In a preferred embodiment, the drive assembly 21 and the reduction assembly 22 are provided with a central through-hole 211, through which the transmission shaft 31 passes. The axis of rotation of the transmission shaft 31 coincides with the axis of the central through-hole 211. The drive assembly 21 is configured as a motor, with the central through-hole 211 provided on the shaft portion. The gear rack 232 and the center gear 234 of the reduction assembly 22 are coaxially provided with the central through-hole 211. The diameter of the central through-hole 211 is larger than the diameter of the transmission shaft 31. The transmission shaft 31 passes through the drive assembly 21 and the reduction assembly 22, thereby forming a single-motor dual-drive output, and the position of the dual-drive output can be flexibly adjusted.

[0053] Those skilled in the art will readily envision other embodiments of the present invention after considering the specification and practicing the disclosure herein. This application is intended to cover any variations, uses, or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered as exemplary only, with the true scope and spirit of the present invention being indicated by the following claims.

[0054] It should be understood that the present invention is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. A dual output motor, characterized in that: The dual-output motor includes a housing, a power mechanism and an output mechanism mounted on the housing; The power mechanism includes a driving assembly and a reduction assembly connected to the driving assembly; The output mechanism includes a transmission shaft and a positioning member fixedly connected to one end of the transmission shaft, the positioning member is drivingly connected to the reduction assembly, and the positioning member rotates relative to the housing, and the transmission shaft and / or the positioning member constitute a first output end; The other end of the transmission shaft passes through the reduction assembly and the driving assembly and extends to the other end of the housing to form a second output end.

2. The dual-output motor according to claim 1, characterized in that: The output mechanism includes a fixing member installed on the housing and / or the reduction assembly. An accommodating cavity is formed between the fixing member and the reduction assembly. The rotation of the positioning member is limited to the accommodating cavity.

3. The dual-output motor according to claim 1, characterized in that: The output mechanism includes a rotating member fixedly connected to the transmission shaft, the power mechanism is located between the rotating member and the positioning member, and the rotating member and / or the transmission shaft constitute the second output end.

4. The dual-output motor according to claim 3, characterized in that: The output mechanism further includes a support member installed on the housing, the support member is located between the rotating member and the power mechanism, and the transmission shaft is rotatably connected to the support member.

5. The dual-output motor according to claim 4, characterized in that: The output mechanism further includes a limiting member, which is connected to the supporting member or the housing. A limiting cavity is formed between the limiting member and the supporting member, and the rotating member is rotatably limited in the limiting cavity.

6. The dual-output motor according to claim 1, characterized in that: The positioning member is meshedly connected with the gear of the reduction assembly.

7. The dual-output motor according to claim 1, characterized in that: The reduction assembly includes at least one stage reduction gear set, and the reduction gear set includes a central gear, a gear rack, at least one planetary gear mounted on the gear rack, and a sun gear arranged on the housing, and the planetary gears are respectively meshed with the central gear and the sun gear.

8. The dual-output motor according to claim 7, characterized in that: In the reduction gear set connected to the driving assembly, the central gear, the planetary gears and the sun gear all use matching helical teeth.

9. The dual-output motor according to claim 7, characterized in that: The reduction gear set is provided with two or more stages, the sun gear in the reduction assembly is integrally formed, the central gear of the second stage and above, the planetary gears and the sun gear all use matching straight teeth, and the positioning member constitutes the gear rack in the final stage reduction gear set.

10. The dual-output motor according to claim 1, characterized in that: The driving assembly and the reduction assembly are provided with a central through hole, the transmission shaft passes through the central through hole, and the rotation axis of the transmission shaft coincides with the axis of the central through hole.

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