Rotor structure of motor

Abstract

A rotor structure of a motor disclosed by the present invention comprises an integrated rotating shaft, coupling rings and a plurality of magnetic rings, the magnetic rings are provided with insertion holes, the integrated rotating shaft penetrates through the insertion holes of the plurality of magnetic rings, two adjacent magnetic rings are connected through the coupling rings, and two opposite sides of the coupling rings are respectively provided with positioning protrusions. The extending direction of the positioning protrusion is the same as the extending direction of the central axis of the integrated rotating shaft. The magnetic ring is provided with a positioning hole matched with the positioning bulge; according to the rotor structure of the motor provided by the invention, a flexible modular design is provided through a combination mode of the integrated rotating shaft and the plurality of magnetic rings, so that the rotor structure can adapt to motors with different sizes and power requirements. According to the design, the requirement for a special production mold is reduced, the production cost is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of motors, and in particular to a rotor structure of a motor. Background Art

[0002] In the field of motor technology, the design of the rotor structure is crucial to the performance, efficiency and reliability of the motor. The existing rotor structure is usually composed of a shaft and a magnetic ring. This design limits its application in motors of different sizes, because motors of different sizes require rotor structures of different sizes, resulting in a single production mold that cannot adapt to the production of rotor structures of various specifications. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a rotor structure of a motor with high size adaptability.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: a rotor structure of a motor, including an integrated rotating shaft, a coupling ring and multiple magnetic rings, the magnetic rings are provided with plug-in holes, the integrated rotating shaft passes through the plug-in holes of the multiple magnetic rings, two adjacent magnetic rings are connected through the coupling ring, and positioning protrusions are respectively provided on opposite sides of the coupling ring, and the extending direction of the positioning protrusions is the same as the extending direction of the central axis of the integrated rotating shaft; the magnetic ring is provided with a positioning hole that cooperates with the positioning protrusion.

[0005] The beneficial effects of the present invention are as follows: the rotor structure of the motor provided by the present invention provides a flexible modular design by combining an integrated rotating shaft with a plurality of magnetic rings, so that the rotor structure can adapt to motors of different sizes and power requirements. This design reduces the need for special production molds, reduces production costs, and improves production efficiency; the through-design of the plug-in hole on the magnetic ring and the integrated rotating shaft, combined with the cooperation between the positioning protrusion on the coupling ring and the positioning hole on the magnetic ring, ensures the position accuracy and alignment of the magnetic ring on the rotating shaft. This precise positioning helps to reduce vibration and noise during rotor operation and improve the operating efficiency and life of the motor; the use of the coupling ring disperses the stress on the rotating shaft to multiple contact points, reduces stress concentration, and thus reduces the risk of rotor structure failure. This design improves the reliability of the rotor structure, especially under high load or high-speed operating conditions; due to the modular design of the magnetic ring and the coupling ring, the assembly and maintenance of the rotor structure become easier. When individual magnetic rings need to be replaced or repaired, there is no need to disassemble the entire rotor, thereby reducing maintenance costs and downtime; the design of the coupling ring not only provides structural stability, but also enhances the overall rigidity and anti-deformation ability of the rotor structure through the cooperation of its positioning protrusions and the positioning holes of the magnetic rings; the rotor structure design allows the number of magnetic rings to be increased or decreased or the design of the coupling ring to be adjusted to adapt to different motor designs and performance requirements, providing a wide range of application adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 It is an assembly diagram of the rotor structure of the motor according to the first embodiment of the present invention; Figure 2 An exploded view of the rotor structure of the motor according to the first embodiment of the present invention; Figure 3 It is a schematic cross-sectional structure diagram of the rotor structure of the motor according to the first embodiment of the present invention.

[0007] Description of labels: 1. Integrated rotating shaft; 2. Magnetic ring; 21. Positioning hole; 22. Injection molded part; 23. Plug hole; 3. Coupling ring; 31. Positioning protrusion. DETAILED DESCRIPTION

[0008] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in combination with the implementation modes and the accompanying drawings.

[0009] Please refer to Figures 1 to 3 A rotor structure of a motor comprises an integrated rotating shaft 1, a coupling ring 3 and a plurality of magnetic rings 2, wherein the magnetic rings 2 are provided with plug-in holes 23, the integrated rotating shaft 1 passes through the plug-in holes 23 of the plurality of magnetic rings 2, two adjacent magnetic rings 2 are connected via the coupling ring 3, and positioning protrusions 31 are respectively provided on opposite sides of the coupling ring 3, and the extending direction of the positioning protrusions 31 is the same as the extending direction of the central axis of the integrated rotating shaft 1; the magnetic ring 2 is provided with a positioning hole 21 cooperating with the positioning protrusion 31.

[0010] From the above description, it can be seen that the beneficial effects of the present invention are: by combining the integrated shaft 1 with multiple magnetic rings 2, a flexible modular design is provided, so that the rotor structure can adapt to motors of different sizes and power requirements. This design reduces the need for special production molds, reduces production costs, and improves production efficiency; the through-design of the plug-in hole 23 on the magnetic ring 2 and the integrated shaft 1, combined with the cooperation of the positioning protrusion 31 on the coupling ring 3 and the positioning hole 21 on the magnetic ring 2, ensures the position accuracy and alignment of the magnetic ring 2 on the shaft. This precise positioning helps to reduce vibration and noise during rotor operation and improve the operating efficiency and life of the motor; the use of the coupling ring 3 disperses the stress on the shaft to multiple contact points, reduces stress concentration, and thus reduces the risk of rotor structure failure. This design improves the reliability of the rotor structure, especially under high load or high-speed operating conditions; due to the modular design of the magnetic ring 2 and the coupling ring 3, the assembly and maintenance of the rotor structure become easier. When individual magnetic rings 2 need to be replaced or repaired, there is no need to disassemble the entire rotor, thereby reducing maintenance costs and downtime; the design of the coupling ring 3 not only provides structural stability, but also enhances the overall rigidity and deformation resistance of the rotor structure through the cooperation between its positioning protrusion 31 and the positioning hole 21 of the magnetic ring 2; the rotor structure design allows the adaptability to different motor designs and performance requirements by increasing or decreasing the number of magnetic rings 2 or adjusting the design of the coupling ring 3, providing a wide range of application adaptability.

[0011] Furthermore, the hardness of the coupling ring 3 is smaller than the hardness of the magnetic ring 2 .

[0012] From the above description, it can be seen that by setting the hardness of the coupling ring 3 to be smaller than the hardness of the magnetic ring 2, the coupling ring 3 can be used as a stress release point when subjected to external force impact, thereby protecting the magnetic ring 2 with higher hardness from damage and extending the service life of the entire rotor structure.

[0013] Furthermore, a plurality of positioning protrusions 31 are respectively provided on opposite sides of the coupling ring 3 .

[0014] From the above description, it can be seen that multiple positioning protrusions 31 are provided on opposite sides of the coupling ring 3, which can increase the contact points between the coupling ring 3 and the magnetic ring 2, improve the stability and reliability of the connection, and also help to disperse stress and reduce stress concentration at a single contact point.

[0015] Furthermore, the plurality of positioning protrusions 31 are centrally symmetrically distributed relative to the central axis of the integrated rotating shaft 1 .

[0016] From the above description, it can be seen that the positioning protrusions 31 are centrally symmetrically distributed relative to the central axis of the integrated rotating shaft 1, which helps to ensure the balance of the rotor structure, reduce vibration and noise caused by asymmetric design, and improve the operating efficiency and stability of the motor.

[0017] Furthermore, an injection molded part 22 is provided on the inner side wall of the magnetic ring 2 , and the plug hole 23 is provided on the injection molded part 22 .

[0018] From the above description, it can be seen that the inner wall of the magnetic ring 2 is provided with an injection molded part 22, and the plug hole 23 is provided on the injection molded part 22. This design can improve the mechanical strength and durability of the magnetic ring 2. At the same time, the injection molded part 22 can serve as a protective layer to reduce the direct friction between the magnetic ring 2 and the rotating shaft and extend the service life.

[0019] Furthermore, a side wall of the positioning protrusion 31 is provided with an air guide groove, and an extending direction of the air guide groove is the same as an extending direction of the positioning protrusion 31 .

[0020] From the above description, it can be seen that the side wall of the positioning protrusion 31 is provided with an air guide groove, which helps to release internal pressure during the assembly or operation of the rotor structure and reduce structural damage caused by pressure accumulation. At the same time, the extension direction of the air guide groove is the same as the extension direction of the positioning protrusion 31, which helps to maintain the symmetry and balance of the rotor structure.

[0021] Furthermore, a blocking protrusion is provided at one end of the air guide groove close to the coupling ring 3 .

[0022] From the above description, it can be seen that a sealing protrusion is provided at one end of the air guide groove close to the coupling ring 3, which can prevent foreign matter from entering or gas leakage after the air guide groove completes the air guide function, thereby protecting the cleanliness and sealing of the inside of the rotor structure.

[0023] Furthermore, the side walls of the coupling ring 3 and / or the magnetic ring 2 are provided with an indicator coating, and when the coupling ring 3 is connected to the magnetic ring 2 , the indicator coating is shielded between the coupling ring 3 and the magnetic ring 2 .

[0024] From the above description, it can be seen that the side walls of the coupling ring 3 and / or the magnetic ring 2 are provided with an indicator coating. When the coupling ring 3 is connected to the magnetic ring 2, the indicator coating is blocked between the two. This design can be used as a visual indication to help quickly identify the assembly status of the rotor structure and improve assembly efficiency and accuracy.

[0025] Furthermore, the indicator coating is made of reflective material.

[0026] As can be seen from the above description, the indicator coating uses reflective material to provide better visibility in low-light environments, which is very useful for motor maintenance and repair in complex or low-light environments.

[0027] Furthermore, the cross-sectional shape of the positioning protrusion 31 is circular, elliptical or regular polygonal.

[0028] As can be seen from the above description, the cross-sectional shape of the positioning protrusion 31 is circular, elliptical or regular polygonal. This diversified design can select the most suitable shape according to different needs and application scenarios to optimize the performance and durability of the rotor structure. For example, a circular protrusion can provide better stress distribution, while a polygonal protrusion may provide stronger connection strength.

[0029] Please refer to Figures 1 to 3 , Embodiment 1 of the present invention is: a rotor structure of a motor, comprising an integrated shaft 1, a coupling ring 3 and a plurality of magnetic rings 2, wherein the magnetic ring 2 is provided with a plug-in hole 23, the integrated shaft 1 penetrates through the plug-in holes 23 of the plurality of magnetic rings 2, two adjacent magnetic rings 2 are connected through the coupling ring 3, and the coupling ring 3 is provided with positioning protrusions 31 on opposite sides, and the extending direction of the positioning protrusions 31 is the same as the extending direction of the central axis of the integrated shaft 1; the magnetic ring 2 is provided with a positioning hole 21 matched with the positioning protrusion 31; it can be understood that, by combining the integrated shaft 1 with the plurality of magnetic rings 2, a flexible modular design is provided, so that the rotor structure can adapt to motors of different sizes and power requirements. This design reduces the need for special production molds, reduces production costs, and improves production efficiency; the through-design of the plug-in hole 23 on the magnetic ring 2 and the integrated shaft 1, combined with the cooperation of the positioning protrusion 31 on the coupling ring 3 and the positioning hole 21 on the magnetic ring 2, ensures the position accuracy and alignment of the magnetic ring 2 on the shaft. This precise positioning helps to reduce vibration and noise during rotor operation and improve the operating efficiency and life of the motor; the use of the coupling ring 3 disperses the stress on the shaft to multiple contact points, reducing stress concentration and thus reducing the risk of rotor structural failure. This design improves the reliability of the rotor structure, especially under high load or high-speed operating conditions; due to the modular design of the magnetic ring 2 and the coupling ring 3, the assembly and maintenance of the rotor structure becomes easier. When individual magnetic rings 2 need to be replaced or repaired, there is no need to disassemble the entire rotor, thereby reducing maintenance costs and downtime; the design of the coupling ring 3 not only provides structural stability, but also enhances the overall rigidity and anti-deformation ability of the rotor structure through the cooperation of its positioning protrusion 31 with the positioning hole 21 of the magnetic ring 2; the rotor structure design allows the number of magnetic rings 2 to be increased or decreased or the design of the coupling ring 3 to be adjusted to adapt to different motor designs and performance requirements, providing a wide range of application adaptability.

[0030] Preferably, the hardness of the coupling ring 3 is smaller than the hardness of the magnetic ring 2. By setting the hardness of the coupling ring 3 to be smaller than the hardness of the magnetic ring 2, the coupling ring 3 can be used as a stress release point when impacted by external force, thereby protecting the magnetic ring 2 with higher hardness from damage and extending the service life of the entire rotor structure.

[0031] Optionally, the number of the positioning protrusions 31 can be set according to actual application requirements; specifically in the present embodiment, a plurality of the positioning protrusions 31 are respectively provided on opposite sides of the coupling ring 3, so that the contact points between the coupling ring 3 and the magnetic ring 2 can be increased, and the stability and reliability of the connection can be improved, while also helping to disperse stress and reduce stress concentration at a single contact point; specifically, the plurality of positioning protrusions 31 are centrally symmetrically distributed relative to the central axis of the integrated rotating shaft 1, so that it helps to ensure the balance of the rotor structure, reduce vibration and noise caused by asymmetric design, and improve the operating efficiency and stability of the motor.

[0032] Preferably, the inner wall of the magnetic ring 2 is provided with an injection molded part 22, and the plug hole 23 is provided on the injection molded part 22. This design can improve the mechanical strength and durability of the magnetic ring 2. At the same time, the injection molded part 22 can serve as a protective layer to reduce the direct friction between the magnetic ring 2 and the rotating shaft and extend the service life.

[0033] Optionally, the side wall of the positioning protrusion 31 is provided with an air guide groove (not shown in the figure), and the extension direction of the air guide groove is the same as the extension direction of the positioning protrusion 31. This helps to release internal pressure during the assembly or operation of the rotor structure and reduce structural damage caused by pressure accumulation. At the same time, the extension direction of the air guide groove is the same as the extension direction of the positioning protrusion 31, which helps to maintain the symmetry and balance of the rotor structure. Further optionally, a sealing protrusion (not shown in the figure) is provided at one end of the air guide groove close to the coupling ring 3. It can be understood that the sealing protrusion is provided at one end of the air guide groove close to the coupling ring 3, which can prevent foreign matter from entering or gas leakage after the air guide groove completes the air guiding function, thereby protecting the cleanliness and sealing of the inside of the rotor structure.

[0034] Optionally, the side walls of the coupling ring 3 and / or the magnetic ring 2 are provided with an indicator coating (not shown). When the coupling ring 3 is connected to the magnetic ring 2, the indicator coating is blocked between the coupling ring 3 and the magnetic ring 2. This design can be used as a visual indication to help quickly identify the assembly status of the rotor structure and improve assembly efficiency and accuracy. Further optionally, the indicator coating is made of reflective material, so that better visibility can be provided in a dimly lit environment, which is very useful for motor maintenance and overhaul in a complex or low-light environment.

[0035] Optionally, the cross-sectional shape of the positioning protrusion 31 is circular (as in this embodiment), elliptical or regular polygonal; this diversified design can select the most suitable shape according to different needs and application scenarios to optimize the performance and durability of the rotor structure. For example, a circular protrusion can provide better stress distribution, while a polygonal protrusion may provide stronger connection strength.

[0036] In summary, the rotor structure of the motor provided by the present invention provides a flexible modular design through the combination of an integrated rotating shaft and multiple magnetic rings, so that the rotor structure can adapt to motors of different sizes and power requirements. This design reduces the need for special production molds, reduces production costs, and improves production efficiency; the through-design of the plug-in hole on the magnetic ring and the integrated rotating shaft, combined with the cooperation of the positioning protrusion on the coupling ring and the positioning hole on the magnetic ring, ensures the position accuracy and alignment of the magnetic ring on the rotating shaft. This precise positioning helps to reduce vibration and noise during rotor operation and improve the operating efficiency and life of the motor; the use of the coupling ring disperses the stress on the rotating shaft to multiple contact points, reduces stress concentration, and thus reduces the risk of rotor structure failure. This design improves the reliability of the rotor structure, especially under high load or high-speed operating conditions; due to the modular design of the magnetic ring and the coupling ring, the assembly and maintenance of the rotor structure become easier. When individual magnetic rings need to be replaced or repaired, there is no need to disassemble the entire rotor, thereby reducing maintenance costs and downtime; the design of the coupling ring not only provides structural stability, but also enhances the overall rigidity and anti-deformation ability of the rotor structure through the cooperation of its positioning protrusions and the positioning holes of the magnetic rings; the rotor structure design allows the number of magnetic rings to be increased or decreased or the design of the coupling ring to be adjusted to adapt to different motor designs and performance requirements, providing a wide range of application adaptability.

[0037] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the present invention's specification and drawings, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A rotor structure of a motor, characterized in that: It includes an integrated rotating shaft, a coupling ring and multiple magnetic rings, the magnetic rings are provided with plug-in holes, the integrated rotating shaft passes through the plug-in holes of the multiple magnetic rings, two adjacent magnetic rings are connected through the coupling ring, and positioning protrusions are respectively provided on opposite sides of the coupling ring, and the extending direction of the positioning protrusions is the same as the extending direction of the central axis of the integrated rotating shaft; the magnetic ring is provided with a positioning hole that cooperates with the positioning protrusion.

2. The rotor structure of the motor according to claim 1, characterized in that: The hardness of the coupling ring is smaller than the hardness of the magnetic ring.

3. The rotor structure of the motor according to claim 1, characterized in that: A plurality of positioning protrusions are respectively arranged on opposite sides of the coupling ring.

4. The rotor structure of the motor according to claim 3, characterized in that: The plurality of positioning protrusions are centrally symmetrically distributed relative to the central axis of the integrated rotating shaft.

5. The rotor structure of the motor according to claim 1, characterized in that: An injection molded part is arranged on the inner side wall of the magnetic ring, and the plug-in hole is arranged on the injection molded part.

6. The rotor structure of the motor according to claim 1, characterized in that: The side wall of the positioning protrusion is provided with an air guide groove, and the extending direction of the air guide groove is the same as the extending direction of the positioning protrusion.

7. The rotor structure of the motor according to claim 6, characterized in that: A blocking protrusion is provided at one end of the air guide groove close to the coupling ring.

8. The rotor structure of the motor according to claim 1, characterized in that: The side walls of the coupling ring and / or the magnetic ring are provided with an indication coating. When the coupling ring is connected to the magnetic ring, the indication coating is shielded between the coupling ring and the magnetic ring.

9. The rotor structure of the motor according to claim 8, characterized in that: The material of the indicating coating is reflective material.

10. The rotor structure of the motor according to claim 1, characterized in that: The cross-sectional shape of the positioning protrusion is circular, elliptical or regular polygonal.

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