A deceleration permanent magnet synchronous motor
By integrating structural design and using multiple sets of large and small gears for transmission, the problems of large size and low heat dissipation efficiency of geared permanent magnet synchronous motors have been solved, realizing the miniaturization and high-efficiency transmission of the equipment, and enhancing stability and ease of use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO MINGSHENG MOTOR TECH CO LTD
- Filing Date
- 2025-06-10
- Publication Date
- 2026-06-26
AI Technical Summary
Existing geared permanent magnet synchronous motor equipment is large in size, making it inconvenient for use in small equipment, and its heat dissipation efficiency needs to be improved.
It adopts an integrated structural design, including support components, reduction components and connecting components. Through the meshing of multiple sets of gears of different sizes, it enhances stability and transmission efficiency and reduces the size of the equipment.
This has enabled the miniaturization of the equipment, enhanced stability and transmission efficiency, reduced energy loss, and improved mechanical lifespan and ease of use.
Smart Images

Figure CN224418609U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of motors, and in particular to a geared permanent magnet synchronous motor. Background Technology
[0002] A permanent magnet synchronous motor generates torque by the interaction between the rotating magnetic field generated by current flowing through the stator coils and the magnetic field generated by the permanent magnets in the rotor, thereby driving the rotor to rotate synchronously. Existing technology publication number CN220190616U proposes a geared permanent magnet synchronous motor that uses a common shaft that serves as both the motor shaft and the worm gear, replacing the existing connection structure. This avoids the efficiency reduction caused by the connection structure and improves the heat dissipation efficiency of the permanent magnet synchronous motor. However, the device is relatively large, hindering miniaturization and making it inconvenient for use in smaller devices. Utility Model Content
[0003] To solve the above-mentioned technical problems, this utility model provides a geared permanent magnet synchronous motor with enhanced stability, an integrated structure to reduce volume, miniaturization of equipment, and ease of use in small equipment.
[0004] This utility model discloses a geared permanent magnet synchronous motor, comprising a housing, a base plate, a permanent magnet synchronous motor, a support assembly, a reduction gear, and a connecting assembly. The base plate is installed at the bottom of the housing, the permanent magnet synchronous motor is installed inside the housing via the support assembly, the reduction gear is installed between the support assembly and the base plate, and the connecting assembly is installed inside the housing. The connecting assembly is connected to a control device via a control line to transmit control signals and drive the permanent magnet synchronous motor to rotate. The permanent magnet synchronous motor outputs power through the reduction gear, increasing torque. The support assembly increases connection strength and enhances stability. The integrated structure reduces volume, making the equipment miniaturized and convenient for use in small devices.
[0005] Preferably, the support assembly includes a support plate and multiple fixing plates. The support plate is mounted on the inner wall of the housing, and a mounting hole is opened in the middle of the support plate. Multiple fixing plates are axially mounted on the top of the mounting hole. The permanent magnet synchronous motor is located in the mounting hole, and the permanent magnet synchronous motor is supported and fixed by the multiple fixing plates to ensure stability during use.
[0006] Preferably, the reduction gear assembly includes a drive shaft, a primary pinion, a secondary shaft, a secondary large gear, a secondary pinion, a tertiary shaft, a tertiary large gear, a tertiary pinion, a quaternary shaft, a quaternary large gear, a quaternary pinion, and an output component. The drive shaft is connected to the output end of the permanent magnet synchronous motor. A primary pinion is mounted on the outer wall of the drive shaft. One end of the secondary shaft is rotatably mounted on a support plate, and the other end is rotatably mounted on a base plate. A secondary large gear is mounted on the outer wall of the secondary shaft, meshing with the primary pinion. A secondary pinion is coaxially mounted below the secondary large gear. The upper and lower ends of the tertiary shaft are rotatably mounted on the support plate and the base plate. A tertiary large gear is mounted on the tertiary shaft, meshing with the secondary pinion. A tertiary pinion is coaxially mounted above the tertiary large gear. The upper and lower ends of the quaternary shaft are rotatably mounted on the support plate and the base plate. The outer wall of the quaternary shaft... The drive shaft is equipped with a four-stage large gear that meshes with a three-stage small gear. A four-stage small gear is coaxially mounted above the large gear. A permanent magnet synchronous motor drives the drive shaft, which in turn drives a first-stage small gear. This small gear, through a second-stage large gear, drives a second-stage shaft. The second-stage shaft, through a second-stage small gear, drives a third-stage large gear. This third-stage large gear, in turn, drives a third-stage shaft, which in turn drives a third-stage small gear. This process, involving multiple sets of meshing large and small gears, provides high transmission efficiency and mechanical efficiency, significantly reduces energy loss, improves overall transmission efficiency, can withstand large torque and loads, has a simple structure, relatively stable components, a long service life, and low maintenance costs.
[0007] Preferably, the output component includes a five-stage rotating shaft, a five-stage large gear, a five-stage small gear, an output gear, an output shaft, and a support shaft. The upper and lower ends of the five-stage rotating shaft are rotatably mounted on a support plate and a base plate, respectively. A five-stage large gear is coaxially mounted on the five-stage rotating shaft and meshes with a four-stage small gear. A five-stage small gear is coaxially mounted below the five-stage large gear. The support shaft is rotatably mounted on the support plate. An output gear is coaxially mounted below the support shaft and meshes with a five-stage small gear. An output shaft is coaxially mounted at the bottom of the output gear. The output shaft is rotatably mounted on the base plate and extends beyond the base plate. The secondary, tertiary, quaternary, and 5th stage shafts and the support shaft are axially distributed about the drive shaft. When the quaternary pinion rotates, it drives the 5th stage shaft to rotate through the 5th stage gear. The 5th stage shaft drives the output gear to rotate through the 5th stage pinion. The output gear drives the output shaft and the support shaft to rotate, outputting power and increasing torque. The base plate and support plate support the secondary, tertiary, quaternary, 5th stage shafts and the support shaft, increasing connection strength and enhancing stability.
[0008] Preferably, the connecting component includes a wiring connector, which is installed at one end of the support plate and extends outside the housing; the wiring connector can be connected to the control equipment via a control line to transmit control signals and drive the permanent magnet synchronous motor to rotate.
[0009] Preferably, it also includes two mounting plates, which are symmetrically mounted on the outer wall of the housing, and the mounting plates are provided with fixing holes; the mounting plates and fixing holes facilitate the installation and fixing of the equipment, making it convenient to use.
[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: the connecting component is connected to the control device through the control line, transmits control signals, drives the permanent magnet synchronous motor to rotate, the permanent magnet synchronous motor outputs power through the reduction component, increases torque, the support component can increase connection strength and enhance stability, the integrated structure reduces volume, makes the equipment miniaturized, and facilitates the use of small equipment. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the structure of this utility model;
[0012] Figure 2 This is a schematic diagram of the lower three-dimensional structure of this utility model;
[0013] Figure 3 This is a schematic diagram of the internal structure of this utility model;
[0014] Figure 4 This is a schematic diagram of the structure of the support component of this utility model;
[0015] Figure 5 This is a schematic diagram of the structure of the deceleration component of this utility model;
[0016] The following are labels in the attached diagram: 1. Outer shell; 2. Base plate; 3. Support plate; 4. Fixing plate; 5. Permanent magnet synchronous motor; 6. Drive shaft; 7. First stage pinion; 8. Second stage shaft; 9. Second stage large gear; 10. Second stage pinion; 11. Third stage shaft; 12. Third stage large gear; 13. Third stage pinion; 14. Fourth stage shaft; 15. Fourth stage large gear; 16. Fourth stage pinion; 17. Fifth stage shaft; 18. Fifth stage large gear; 19. Fifth stage pinion; 20. Output gear; 21. Output shaft; 22. Support shaft; 23. Wiring connector; 24. Mounting plate. Detailed Implementation
[0017] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.
[0018] like Figures 1 to 5 As shown, the base plate 2 is installed at the bottom of the outer casing 1, and the support plate 3 is installed on the inner wall of the outer casing 1. A mounting hole is opened in the middle of the support plate 3, and multiple fixing plates 4 are axially installed on the top of the mounting hole. The permanent magnet synchronous motor 5 is located inside the mounting hole and is supported and fixed by the multiple fixing plates 4. The drive shaft 6 is connected to the output end of the permanent magnet synchronous motor 5. A primary pinion 7 is installed on the outer wall of the drive shaft 6. One end of the secondary shaft 8 is rotatably mounted on the support plate 3, and the other end of the secondary shaft 8 is rotatably mounted on the base plate 2. A secondary large gear 9 is installed on the outer wall of the 8th stage, meshing with a primary small gear 7. A secondary small gear 10 is coaxially installed below the secondary large gear 9. A tertiary rotating shaft 11 is rotatably mounted on the support plate 3 and the base plate 2 at both ends. A tertiary large gear 12 is installed on the tertiary rotating shaft 11, meshing with the secondary small gear 10. A tertiary small gear 13 is coaxially mounted above the tertiary large gear 12. A quaternary rotating shaft 14 is rotatably mounted on the support plate 3 and the base plate 2 at both ends. The outer wall of the quaternary rotating shaft 14... A fourth-stage large gear 15 is installed, meshing with a third-stage small gear 13. A fourth-stage small gear 16 is coaxially mounted above the fourth-stage large gear 15. A fifth-stage rotating shaft 17 is rotatably mounted on a support plate 3 and a base plate 2 at its upper and lower ends, respectively. A fifth-stage large gear 18 is coaxially mounted on the fifth-stage rotating shaft 17, meshing with the fourth-stage small gear 16. A fifth-stage small gear 19 is coaxially mounted below the fifth-stage large gear 18. A support shaft 22 is rotatably mounted on the support plate 3. A conveyor belt is coaxially mounted below the support shaft 22. The output gear 20 meshes with the fifth-stage pinion 19. The output shaft 21 is coaxially mounted on the bottom of the output gear 20. The output shaft 21 is rotatably mounted on the base plate 2 and extends out of the base plate 2. The second-stage rotating shaft 8, the third-stage rotating shaft 11, the fourth-stage rotating shaft 14, the fifth-stage rotating shaft 17, and the support shaft 22 are axially distributed about the drive shaft 6. The wiring connector 23 is installed at one end of the support plate 3 and extends out of the outer shell 1. The mounting plate 24 is symmetrically mounted on the outer wall of the outer shell 1 and has fixing holes.
[0019] The permanent magnet synchronous motor 5 is located within the mounting hole and is supported and fixed by multiple fixing plates 4 to ensure stability during use. The mounting plate 24 and fixing holes facilitate installation and fixation of the equipment, making it convenient to use. The wiring connector 23 can connect to the control equipment via a control line to transmit control signals and drive the permanent magnet synchronous motor 5 to rotate. The permanent magnet synchronous motor 5 drives the drive shaft 6 to rotate, which in turn drives the first-stage pinion 7. The first-stage pinion 7 drives the second-stage shaft 8 via the second-stage large gear 9. The second-stage shaft 8 drives the third-stage large gear 12 via the second-stage pinion 10. The third-stage large gear 12 drives the third-stage shaft 11 to rotate, which in turn drives the third-stage pinion 13 to rotate. The third-stage pinion 13 drives the fourth-stage large gear 15 to rotate, which in turn drives the fourth-stage shaft 14. The fourth-stage rotating shaft 14 drives the fourth-stage pinion 16 to rotate. When the fourth-stage pinion 16 rotates, it drives the fifth-stage rotating shaft 17 to rotate through the fifth-stage large gear 18. The fifth-stage rotating shaft 17 drives the output gear 20 to rotate through the fifth-stage pinion 19. The output gear 20 drives the output shaft 21 and the support shaft 22 to rotate, outputting power and increasing torque. The base plate 2 and the support plate 3 support the second-stage rotating shaft 8, the third-stage rotating shaft 11, the fourth-stage rotating shaft 14, the fifth-stage rotating shaft 17 and the support shaft 22, increasing the connection strength and enhancing stability. Through the transmission method of multiple sets of large and small gears meshing, it can provide high transmission efficiency, higher mechanical efficiency, significantly reduce energy loss, improve overall transmission efficiency, withstand large torque and load, has a simple structure, relatively stable parts, long service life and low maintenance cost.
[0020] like Figures 1 to 5 As shown, this utility model discloses a geared permanent magnet synchronous motor. During operation, the device is installed and fixed via mounting plate 24 and fixing holes. Wiring connector 23 connects to control equipment via control lines to transmit control signals, driving the permanent magnet synchronous motor 5 to rotate. The permanent magnet synchronous motor 5 drives the drive shaft 6 to rotate, which in turn drives the first-stage pinion 7. The first-stage pinion 7 drives the second-stage shaft 8 via the second-stage large gear 9. The second-stage shaft 8 drives the third-stage large gear 12 via the second-stage pinion 10. The third-stage large gear 12... The rotation of the third-stage shaft 11 causes the third-stage pinion 13 to rotate, which in turn drives the fourth-stage large gear 15 to rotate. The fourth-stage large gear 15 then drives the fourth-stage shaft 14 to rotate, which in turn drives the fourth-stage pinion 16 to rotate. As the fourth-stage pinion 16 rotates, it drives the fifth-stage shaft 17 to rotate via the fifth-stage large gear 18. The fifth-stage shaft 17 then drives the output gear 20 to rotate via the fifth-stage pinion 19. The output gear 20 then drives the output shaft 21 and the support shaft 22 to rotate, thus outputting power and increasing torque.
[0021] The permanent magnet synchronous motor 5 and the wiring connector 23 of the decelerated permanent magnet synchronous motor of this utility model are commercially available. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.
[0022] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A reduced speed permanent magnet synchronous motor, characterized by, The system includes a housing (1), a base plate (2), a permanent magnet synchronous motor (5), a support assembly, a reduction gear, and a connecting component. The base plate (2) is installed at the bottom of the housing (1). The permanent magnet synchronous motor (5) is installed inside the housing (1) via the support assembly. The reduction gear is installed between the support assembly and the base plate (2). The connecting component is installed inside the housing (1). The support assembly includes a support plate (3) and multiple fixing plates (4). The support plate (3) is installed on the inner wall of the housing (1). A mounting hole is provided in the middle of the support plate (3). The top of the mounting hole is axially mounted. It is equipped with multiple fixed plates (4); the reduction components include a drive shaft (6), a first-stage pinion (7), a second-stage shaft (8), a second-stage large gear (9), a second-stage pinion (10), a third-stage shaft (11), a third-stage large gear (12), a third-stage pinion (13), a fourth-stage shaft (14), a fourth-stage large gear (15), a fourth-stage pinion (16), and an output component. The drive shaft (6) is connected to the output end of the permanent magnet synchronous motor (5). A first-stage pinion (7) is installed on the outer wall of the drive shaft (6), and one end of the second-stage shaft (8) rotates. Mounted on the support plate (3), the other end of the secondary shaft (8) is rotatably mounted on the base plate (2). A secondary large gear (9) is mounted on the outer wall of the secondary shaft (8). The secondary large gear (9) meshes with the primary small gear (7). A secondary small gear (10) is coaxially mounted below the secondary large gear (9). The upper and lower ends of the tertiary shaft (11) are rotatably mounted on the support plate (3) and the base plate (2). A tertiary large gear (12) is mounted on the tertiary shaft (11). The tertiary large gear (12) meshes with the secondary small gear (10). A three-stage small gear (13) is coaxially mounted above the gear (12). The upper and lower ends of the four-stage rotating shaft (14) are rotatably mounted on the support plate (3) and the base plate (2). A four-stage large gear (15) is mounted on the outer wall of the four-stage rotating shaft (14). The four-stage large gear (15) meshes with the three-stage small gear (13). A four-stage small gear (16) is coaxially mounted above the four-stage large gear (15). The connecting component includes a wiring connector (23). The wiring connector (23) is mounted at one end of the support plate (3) and extends out of the outer shell (1).
2. The geared permanent magnet synchronous motor as described in claim 1, characterized in that, The output components include a five-stage rotating shaft (17), a five-stage large gear (18), a five-stage small gear (19), an output gear (20), an output shaft (21), and a support shaft (22). The five-stage rotating shaft (17) is rotatably mounted on the support plate (3) and the base plate (2) at its upper and lower ends, respectively. The five-stage large gear (18) is coaxially mounted on the five-stage rotating shaft (17), and the five-stage large gear (18) meshes with the four-stage small gear (16). The five-stage small gear (19) is coaxially mounted below the five-stage large gear (18). The support shaft (21) 22) Rotatably mounted on the support plate (3), the output gear (20) is coaxially mounted below the support shaft (22), the output gear (20) meshes with the fifth-stage pinion (19), the output shaft (21) is coaxially mounted at the bottom of the output gear (20), the output shaft (21) is rotatably mounted on the base plate (2) and extends out of the base plate (2), the second-stage rotating shaft (8), the third-stage rotating shaft (11), the fourth-stage rotating shaft (14), the fifth-stage rotating shaft (17) and the support shaft (22) are axially distributed about the drive shaft (6).
3. The geared permanent magnet synchronous motor as described in claim 1, characterized in that, It also includes two mounting plates (24), which are symmetrically mounted on the outer wall of the outer shell (1), and the mounting plates (24) have fixing holes.