Low noise energy saving synchronous motor

By employing helical gear transmission and heat dissipation components in the synchronous motor, noise reduction and heat dissipation issues are resolved, the motor's output torque and reliability are improved, and low-noise and energy-saving effects are achieved.

CN224355964UActive Publication Date: 2026-06-12NINGBO MINGSHENG MOTOR TECH CO LTD

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
2026-06-12

AI Technical Summary

Technical Problem

Existing synchronous motors have poor noise reduction and heat dissipation effects, which affect their reliability and durability.

Method used

It adopts a helical gear transmission structure and heat dissipation components. The large overlap of the helical gears and the meshing of multiple pairs of gear teeth buffer and reduce vibration, increase the output torque and reduce thermal expansion wear. At the same time, the heat dissipation components are used to dissipate heat and cool down.

🎯Benefits of technology

It improves noise reduction, enhances durability and reliability, reduces wear caused by thermal expansion, and improves the overall performance of the motor.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224355964U_ABST
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Abstract

The utility model relates to the technical field of synchronous motor, especially a kind of low-noise energy-saving synchronous motor, it increases output torque, improves low-noise effect, improves use intensity and reliability simultaneously, reduces thermal expansion and increases abrasion, improves use effect;Shell and motor body, motor body is installed on the outer lateral wall of shell;It further includes heat dissipation component, output component, pivot, first helical gear and second helical gear, pivot rotation is installed on the inner lateral wall of shell, motor body output end is concentric with pivot connection, first helical gear is installed on the outer lateral wall of pivot, second helical gear rotation is installed on the inner lateral wall of shell, second helical gear is engaged with first helical gear, and the diameter of second helical gear is greater than the diameter of first helical gear, heat dissipation component is arranged in shell, heat dissipation component is used to heat dissipation cooling in shell, output component is concentric with second helical gear connection, and output component is used for power output.
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Description

Technical Field

[0001] This utility model relates to the technical field of synchronous motors, and in particular to a low-noise, energy-saving synchronous motor. Background Technology

[0002] Permanent magnet synchronous motors are widely used in many fields due to their high efficiency, high power density, and low noise. Their working principle is based on the interaction between the rotating magnetic field generated by the stator current and the magnetic field of the rotor permanent magnet, eliminating the need for additional excitation current and thus improving energy conversion efficiency.

[0003] For example, the existing technology authorization announcement number CN203674871U discloses a synchronous motor, including a motor body. The motor body includes a motor housing and a main shaft. The motor housing has a front end cover and a rear end cover at both ends. The motor housing has a mounting plate inside. The mounting plate and the front end cover have a mounting part. The main shaft has an output gear. The mounting part has a transmission device. The transmission device includes a transmission gear and an output shaft.

[0004] However, it was found during the use of this motor that its noise reduction effect was poor and its heat dissipation and cooling effect was poor, which reduced its reliability. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a low-noise energy-saving synchronous motor that increases output torque, improves low-noise performance, enhances strength and reliability, reduces thermal expansion and wear, and improves overall performance.

[0006] This utility model discloses a low-noise, energy-saving synchronous motor, comprising a housing and a motor body, with the motor body mounted on the outer wall of the housing. It also includes a heat dissipation assembly, an output assembly, a rotating shaft, a first helical gear, and a second helical gear. The rotating shaft is rotatably mounted on the inner wall of the housing. The output end of the motor body is concentrically connected to the rotating shaft. The first helical gear is mounted on the outer wall of the rotating shaft, and the second helical gear is rotatably mounted on the inner wall of the housing. The second helical gear meshes with the first helical gear, and the diameter of the second helical gear is larger than that of the first helical gear. A heat dissipation assembly is provided inside the housing for cooling the interior. The output assembly is concentrically connected to the second helical gear. The component is used for power output; the motor body drives the shaft to rotate, which in turn drives the first helical gear to rotate. The first helical gear then drives the second helical gear to rotate, and the second helical gear outputs power through the output component. By setting the first and second helical gears, the output torque of the motor body is increased, and the impact and vibration during gear meshing are reduced. In addition, the large overlap of the helical gears and the simultaneous meshing of multiple pairs of gears also play a role in buffering and vibration reduction, improving the low noise effect, while also improving the strength and reliability of use. The heat dissipation component cools the first and second helical gears, reducing thermal expansion and wear, and improving the performance.

[0007] Preferably, the output assembly includes a sleeve, a first magnetic block, an output shaft, a second magnetic block, and a protective sleeve. The sleeve is rotatably mounted on the outer wall of the housing. A second helical gear is concentrically connected to the sleeve. Multiple sets of first magnetic blocks are circumferentially arranged on the inner wall of the sleeve. The output shaft extends into the sleeve. Multiple sets of second magnetic blocks are circumferentially arranged on the outer wall of the output shaft, with a distance maintained between the multiple sets of second magnetic blocks and the multiple sets of first magnetic blocks. The protective sleeve is mounted on the outer wall of the output shaft and rotatably fits over the sleeve. The second helical gear drives the sleeve to rotate, causing the sleeve to drive the output shaft to rotate through the magnetic coupling of the multiple sets of first and second magnetic blocks. This allows the output shaft to provide output power to the outside, improving the flexible start-up effect and avoiding the impact load caused by sudden start-up in traditional mechanical transmission, thereby reducing the stretching and wear on external transmission components such as belts.

[0008] Preferably, the heat dissipation assembly includes fan blades, air inlets, and exhaust ports. The fan blades are mounted on the outer wall of the rotating shaft, and multiple sets of air inlets and exhaust ports are respectively arranged on the outer wall of the housing. After the rotating shaft rotates, it drives the fan blades to rotate. After the fan blades rotate, outdoor air is transported into the housing through multiple sets of air inlets. Subsequently, the air in the housing is discharged through multiple sets of exhaust ports, thereby achieving airflow within the housing and improving the heat dissipation and cooling effect of the internal components.

[0009] Preferably, it also includes a bracket and a shaft seat, with the bracket mounted on the outer wall of the housing, the shaft seat mounted on the bracket, and the output shaft rotatably mounted on the shaft seat; thus improving the rotational stability of the output shaft.

[0010] Preferably, it also includes a first protective net and a second protective net, both of which are installed on the inner sidewall of the shell. The first protective net is installed on multiple sets of air inlets, and the second protective net is installed on multiple sets of exhaust outlets, thereby improving the shielding and protection effect of the multiple sets of air inlets and exhaust outlets.

[0011] Preferably, it also includes a through hole, which is provided on the output shaft; this improves the convenience of connecting and fixing the output shaft to external devices.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: the motor body drives the rotating shaft to rotate, which in turn drives the first helical gear to rotate. After the first helical gear rotates, it drives the second helical gear to rotate, and the second helical gear outputs power through the output component. By setting the first and second helical gears, the output torque of the motor body is increased, and the impact and vibration during gear meshing are reduced. In addition, the large overlap of the helical gears and the simultaneous meshing of multiple pairs of gears also play a role in buffering and vibration reduction, improving the low noise effect, while improving the strength and reliability of use. The heat dissipation component cools the first and second helical gears, reduces thermal expansion and wear, and improves the performance. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the isometric structure of this utility model;

[0014] Figure 2 This is an isometric structural diagram showing the connection between the housing and the motor body, etc.

[0015] Figure 3 This is a partial isometric structural diagram showing the connection between the housing and the rotating shaft, etc.

[0016] Figure 4 It is an isometric schematic diagram of the casing and air inlet and other structures.

[0017] The following are labels in the attached diagram: 1. Housing; 2. Motor body; 3. Shaft; 4. First helical gear; 5. Second helical gear; 6. Sleeve; 7. First magnet; 8. Output shaft; 9. Second magnet; 10. Protective sleeve; 11. Fan blade; 12. Air inlet; 13. Exhaust outlet; 14. Bracket; 15. Shaft seat; 16. First protective mesh; 17. Second protective mesh; 18. Through hole. Detailed Implementation

[0018] 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. Example 1

[0019] like Figures 1 to 4As shown, this utility model discloses a low-noise energy-saving synchronous motor, comprising a housing 1 and a motor body 2, with the motor body 2 mounted on the outer wall of the housing 1; it also includes a heat dissipation assembly, an output assembly, a rotating shaft 3, a first helical gear 4, and a second helical gear 5. The rotating shaft 3 is rotatably mounted on the inner wall of the housing 1, and the output end of the motor body 2 is concentrically connected to the rotating shaft 3. The first helical gear 4 is mounted on the outer wall of the rotating shaft 3, and the second helical gear 5 is rotatably mounted on the inner wall of the housing 1. The second helical gear 5 meshes with the first helical gear 4, and the diameter of the second helical gear 5 is larger than the diameter of the first helical gear 4. A heat dissipation assembly is provided inside the housing 1 for cooling the interior of the housing 1. The output assembly is concentrically connected to the second helical gear 5 and is used for power output.

[0020] like Figure 2 As shown, the output assembly includes a sleeve 6, a first magnetic block 7, an output shaft 8, a second magnetic block 9, and a protective sleeve 10. The sleeve 6 is rotatably mounted on the outer wall of the housing 1. The second helical gear 5 is concentrically connected to the sleeve 6. Multiple sets of first magnetic blocks 7 are circumferentially arranged on the inner wall of the sleeve 6. The output shaft 8 extends into the sleeve 6. Multiple sets of second magnetic blocks 9 are circumferentially arranged on the outer wall of the output shaft 8. The multiple sets of second magnetic blocks 9 and the multiple sets of first magnetic blocks 7 maintain a distance between them. The protective sleeve 10 is mounted on the outer wall of the output shaft 8 and is rotatably fitted onto the outside of the sleeve 6.

[0021] In this embodiment, the motor body 2 drives the rotating shaft 3 to rotate, which in turn drives the first helical gear 4 to rotate. The first helical gear 4 then drives the second helical gear 5 to rotate, which in turn outputs power through the output component. By setting the first helical gear 4 and the second helical gear 5, the output torque of the motor body 2 is increased, and the impact and vibration during gear meshing are reduced. In addition, the large overlap of the helical gears and the simultaneous meshing of multiple pairs of gears also play a role in buffering and vibration reduction, improving the low noise effect, while also improving the strength and reliability of use. The heat dissipation component cools the first helical gear 4 and the second helical gear 5, reducing thermal expansion and wear, and improving the performance. Example 2

[0022] Based on Example 1, such as Figure 3 and Figure 4 As shown, this utility model discloses a low-noise energy-saving synchronous motor. The heat dissipation component includes a fan blade 11, an air inlet 12, and an exhaust port 13. The fan blade 11 is installed on the outer wall of the rotating shaft 3, and multiple sets of air inlets 12 and multiple sets of exhaust ports 13 are respectively arranged on the outer wall of the housing 1.

[0023] like Figure 1 As shown, it also includes a bracket 14 and a bearing seat 15. The bracket 14 is mounted on the outer wall of the housing 1, the bearing seat 15 is mounted on the bracket 14, and the output shaft 8 is rotatably mounted on the bearing seat 15.

[0024] like Figure 3 As shown, it also includes a first protective net 16 and a second protective net 17. Both the first protective net 16 and the second protective net 17 are installed on the inner side wall of the housing 1. The first protective net 16 is installed on multiple sets of air inlets 12, and the second protective net 17 is installed on multiple sets of exhaust outlets 13.

[0025] like Figure 2 As shown, it also includes a through hole 18, which is disposed on the output shaft 8;

[0026] In this embodiment, the second helical gear 5 drives the sleeve 6 to rotate, and the sleeve 6 drives the output shaft 8 to rotate through the magnetic coupling of multiple sets of first magnetic blocks 7 and multiple sets of second magnetic blocks 9. This allows the output shaft 8 to provide output power to the outside, improve the flexible start-up effect, and avoid the impact load caused by sudden start-up in traditional mechanical transmission. This reduces the stretching and wear on external transmission components such as belts. After the shaft 3 rotates, it drives the fan blade 11 to rotate. After the fan blade 11 rotates, it delivers outdoor air to the housing 1 through multiple sets of air inlets 12. Then, the air in the housing 1 is discharged through multiple sets of exhaust holes 13, realizing the air flow effect in the housing 1 and improving the heat dissipation and cooling effect of the components inside the housing 1.

[0027] This utility model discloses a low-noise energy-saving synchronous motor. When it is working, the motor body 2 drives the rotating shaft 3 to rotate, which in turn drives the first helical gear 4 to rotate. After the first helical gear 4 rotates, it drives the second helical gear 5 to rotate, which in turn outputs power through the output component and cools the first helical gear 4 and the second helical gear 5 through the heat dissipation component.

[0028] The motor body 2 of the low-noise energy-saving synchronous motor of this utility model is purchased from the market. Technical personnel in this industry only need to install and operate it according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0029] 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 low-noise, energy-saving synchronous motor, comprising a housing (1) and a motor body (2), wherein the motor body (2) is mounted on the outer wall of the housing (1); characterized in that, It also includes a heat dissipation component, an output component, a rotating shaft (3), a first helical gear (4) and a second helical gear (5). The rotating shaft (3) is rotatably mounted on the inner wall of the housing (1). The output end of the motor body (2) is concentrically connected to the rotating shaft (3). The first helical gear (4) is mounted on the outer wall of the rotating shaft (3). The second helical gear (5) is rotatably mounted on the inner wall of the housing (1). The second helical gear (5) meshes with the first helical gear (4), and the diameter of the second helical gear (5) is larger than the diameter of the first helical gear (4). A heat dissipation component is provided inside the housing (1) for dissipating heat and cooling inside the housing (1). The output component is concentrically connected to the second helical gear (5) for power output.

2. The low-noise energy-saving synchronous motor as described in claim 1, characterized in that, The output assembly includes a sleeve (6), a first magnetic block (7), an output shaft (8), a second magnetic block (9), and a protective sleeve (10). The sleeve (6) is rotatably mounted on the outer wall of the housing (1). The second helical gear (5) is concentrically connected to the sleeve (6). Multiple sets of first magnetic blocks (7) are circumferentially arranged on the inner wall of the sleeve (6). The output shaft (8) extends into the sleeve (6). Multiple sets of second magnetic blocks (9) are circumferentially arranged on the outer wall of the output shaft (8). The multiple sets of second magnetic blocks (9) and the multiple sets of first magnetic blocks (7) maintain a distance. The protective sleeve (10) is mounted on the outer wall of the output shaft (8) and is rotatably fitted onto the outside of the sleeve (6).

3. The low-noise energy-saving synchronous motor as described in claim 1, characterized in that, The heat dissipation assembly includes a fan blade (11), an air inlet (12) and an exhaust port (13). The fan blade (11) is installed on the outer wall of the rotating shaft (3), and multiple sets of air inlets (12) and multiple sets of exhaust ports (13) are respectively arranged on the outer wall of the housing (1).

4. A low-noise, energy-saving synchronous motor as described in claim 2, characterized in that, It also includes a bracket (14) and a bearing seat (15). The bracket (14) is mounted on the outer wall of the housing (1), and the bearing seat (15) is mounted on the bracket (14). The output shaft (8) is rotatably mounted on the bearing seat (15).

5. A low-noise, energy-saving synchronous motor as described in claim 3, characterized in that, It also includes a first protective net (16) and a second protective net (17). The first protective net (16) and the second protective net (17) are both installed on the inner side wall of the shell (1). The first protective net (16) is installed on multiple sets of air inlets (12), and the second protective net (17) is installed on multiple sets of exhaust holes (13).

6. A low-noise, energy-saving synchronous motor as described in claim 2, characterized in that, It also includes a through hole (18), which is provided on the output shaft (8).