Stator and rotor mechanism and motor

Abstract

The utility model relates to the technical field of motors, in particular to a stator-rotor mechanism and a motor, comprising a rotor assembly, a stator assembly and a wiring board, the rotor assembly comprises a rotor support, a rotor magnetic shoe and a rotating shaft, the rotating shaft is arranged at the axis of the rotor support, and the rotor support is provided with a plurality of mounting grooves. One end of each mounting groove extends towards the rotating shaft, and the rotor magnetic shoes are arranged on the mounting grooves; the stator assembly comprises a stator framework and a stator winding, the stator framework is arranged on the periphery of the rotor support, the stator framework is provided with a plurality of stator winding grooves, the stator winding is arranged on the stator winding grooves, and the stator winding is opposite to the rotor magnetic shoe; the wiring board is arranged on the stator framework and is connected with the stator winding; according to the utility model, the rotor magnetic shoes in the rotor assembly are accurately installed in the installation grooves of the rotor support, so that the magnetic shoes can stably provide a uniform magnetic field in the rotation process of the rotor, and effective electromagnetic interaction is formed between the magnetic shoes and the stator winding in the stator assembly.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, and in particular to a stator-rotor mechanism and a motor. Background Technology

[0002] A brushless motor is a type of motor, also known as a brushless DC motor or an electronically controlled speed motor. Compared to traditional brushed DC motors, brushless motors do not require brushes and slip rings for commutation, thus offering higher efficiency, longer lifespan, and lower maintenance requirements. The working principle of a brushless motor is to use an electronic controller to switch the current in real time, thereby driving the motor rotor to rotate. It typically consists of a stator and a rotor. The stator contains several coils that generate a rotating magnetic field through current switching. The rotor is equipped with permanent magnets or magnetic coils, which rotate under the influence of the rotating magnetic field.

[0003] The stator and rotor mechanism of an electric motor is a major component of the motor. The existing stator and rotor mechanism of an electric motor has poor magnetic field stability during rotation, which affects the energy conversion of the motor. Therefore, it is necessary to make new improvements to the existing stator and rotor mechanism of an electric motor. Utility Model Content

[0004] To solve the above problems, the rotor magnets in the rotor assembly of this utility model are precisely installed in the mounting slots of the rotor bracket, ensuring that the magnets can stably provide a uniform magnetic field during rotor rotation, forming an effective electromagnetic interaction with the stator windings in the stator assembly, thereby significantly improving the energy conversion efficiency of the motor and reducing energy loss in the stator-rotor mechanism and motor.

[0005] The technical solution adopted by this utility model is as follows: a rotor-stator mechanism, including a rotor assembly, a stator assembly, and a terminal block. The rotor assembly includes a rotor support, rotor magnets, and a rotating shaft. The rotating shaft is located at the center of the rotor support. The rotor support has multiple mounting slots, one end of which extends toward the rotating shaft. The rotor magnets are mounted on the mounting slots. The stator assembly includes a stator frame and a stator winding. The stator frame is located on the outer periphery of the rotor support. The stator frame has multiple stator winding slots, and the stator windings are mounted on the stator winding slots, opposite to the rotor magnets. The terminal block is located on the stator frame and connected to the stator windings.

[0006] A further improvement to the above scheme is that multiple mounting slots are evenly distributed in a circumferential direction on the rotor support, and a fan-shaped fixing block is formed between two adjacent mounting slots.

[0007] A further improvement to the above scheme is that the rotor support is provided with a fixing ring, the fixing ring is used to connect the rotating shaft, and the mounting groove is provided with an expansion groove at one end near the fixing ring, the width of the expansion groove being greater than the width of the mounting groove.

[0008] A further improvement to the above scheme is that a mounting buckle is provided at one end of the mounting groove near the stator assembly, and a limiting block is provided on the fixing ring. The limiting block and the mounting buckle are respectively used to abut against both ends of the rotor magnet.

[0009] A further improvement to the above scheme is that the stator frame is formed by splicing multiple I-shaped frames into a ring, and splicing grooves and splicing bosses are respectively provided on both sides of the I-shaped frame. Adjacent I-shaped frames are spliced ​​together through splicing grooves and splicing bosses.

[0010] A further improvement to the above scheme is that an insulating fixing frame is provided on the I-shaped frame, and the stator winding is disposed on the insulating fixing frame.

[0011] A further improvement to the above solution is that the insulating fixing frame includes an upper shell and a lower shell, which are respectively fastened to the upper and lower sides of the I-shaped frame.

[0012] A further improvement to the above scheme is that the I-shaped frame is provided with a connecting column, the upper shell is provided with an upper slot, and the lower shell is provided with a lower slot. The upper slot and the lower slot are respectively inserted into the upper and lower sides of the connecting column.

[0013] A further improvement to the above scheme is that one end of the I-shaped frame extends to a contact platform, and the wiring board is disposed on the contact platform.

[0014] An electric motor, comprising the aforementioned stator and rotor mechanism.

[0015] The beneficial effects of this utility model are:

[0016] Compared to existing electronic stator-rotor mechanisms, the rotor magnets in this invention are precisely installed in the mounting slots of the rotor bracket, ensuring that the magnets can stably provide a uniform magnetic field during rotor rotation. This forms an effective electromagnetic interaction with the stator windings in the stator assembly, significantly improving the motor's energy conversion efficiency and reducing energy loss. The stator frame, as the component supporting the stator windings, is arranged around the outer periphery of the rotor bracket. This not only enhances the overall structural stability but also, through precise stator winding slot design, allows for accurate stator winding arrangement, effectively avoiding electromagnetic interference between windings and ensuring the motor's stability and reliability at high speeds. The terminal block is directly mounted on the stator frame and easily connected to the stator windings. This simplifies the layout of the motor's internal wiring, allowing for direct operation via the terminal block, reducing maintenance costs and improving maintenance efficiency. The compact layout design maximizes the use of limited space, achieving high power density output. This is particularly important for space-constrained applications. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the stator and rotor mechanism of this utility model;

[0018] Figure 2 for Figure 1 Exploded view of the stator-rotor mechanism;

[0019] Figure 3 for Figure 1 Top view of the stator-rotor mechanism;

[0020] Figure 4 for Figure 3 Sectional view of AA;

[0021] Figure 5 for Figure 1 Side view of the stator-rotor mechanism;

[0022] Figure 6 for Figure 5 Sectional view of BB;

[0023] Figure 7 for Figure 6 Enlarged diagram of point A in the diagram;

[0024] Figure 8 for Figure 1 A schematic diagram of the stator assembly of the rotor-stator mechanism.

[0025] Explanation of reference numerals in the attached drawings: Rotor assembly 1, Rotor bracket 11, Mounting groove 111, Fan-shaped fixing block 112, Fixing ring 113, Expansion groove 114, Mounting buckle 115, Limiting pressure block 116, Rotor magnet 12, Rotating shaft 13, Stator assembly 2, Stator frame 21, Stator winding slot 211, Stator winding 22, I-shaped frame 23, Splicing groove 231, Splicing boss 232, Insulation fixing frame 233, Upper housing 234, Upper slot 2341, Lower housing 235, Lower slot 2351, Connecting post 236, Abutment platform 237, Terminal block 3. Detailed Implementation

[0026] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, 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 provide a more thorough and complete understanding of the disclosure of this utility model.

[0027] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Figures 1-8 As shown, in one embodiment of this utility model, a rotor-stator mechanism is disclosed, including a rotor assembly 1, a stator assembly 2, and a terminal block 3. The rotor assembly 1 includes a rotor support 11, rotor magnets 12, and a rotating shaft 13. The rotating shaft 13 is disposed at the axis of the rotor support 11. The rotor support 11 is provided with a plurality of mounting slots 111, one end of which extends toward the rotating shaft 13. The rotor magnets 12 are disposed on the mounting slots 111. The stator assembly 2 includes a stator frame 21 and a stator winding 22. The stator frame 21 is disposed on the outer periphery of the rotor support 11. The stator frame 21 is provided with a plurality of stator winding slots 211. The stator winding 22 is disposed on the stator winding slots 211 and is opposite to the rotor magnets 12. The terminal block 3 is disposed on the stator frame 21 and connected to the stator winding 22. In this embodiment, the rotor magnets 12 in rotor assembly 1 are precisely installed in the mounting slots 111 of rotor bracket 11, ensuring that the magnets can stably provide a uniform magnetic field during rotor rotation, forming an effective electromagnetic interaction with the stator windings 22 in stator assembly 2. This significantly improves the energy conversion efficiency of the motor and reduces energy loss. The stator frame 21, as a component supporting the stator windings 22, is arranged around the outer periphery of rotor bracket 11. This not only enhances the overall structural stability but also, through the precise design of the stator winding slots 211, allows for the accurate arrangement of the stator windings 22, effectively avoiding electromagnetic interference between windings and ensuring the stability and reliability of the motor under high-speed rotation. The terminal block 3 is directly mounted on the stator frame 21 and easily connected to the stator windings 22. This simplifies the layout of the internal wiring of the motor and allows for direct operation via the terminal block 3, reducing maintenance costs and improving maintenance efficiency. The compact layout design maximizes the use of limited space, achieving high power density output. This is particularly important for space-constrained applications.

[0029] Multiple mounting slots 111 are evenly distributed circumferentially on the rotor support 11, with a fan-shaped fixing block 112 formed between adjacent mounting slots 111. In this embodiment, not only is space utilization optimized and unnecessary material consumption reduced, but also the uniformly distributed load transfer effectively reduces rotor vibration and noise during high-speed rotation. The fan-shaped fixing block 112 formed between adjacent mounting slots 111, as a naturally reinforcing structural element, enhances the overall rigidity of the rotor support 11 and improves its resistance to deformation under complex working conditions. Each mounting slot 111 can work independently or collaboratively, providing a reliable foundation for the precise assembly of internal motor components such as permanent magnets and sensors. Simultaneously, the presence of the fan-shaped fixing block 112 facilitates thermal management, promoting uniform heat distribution and rapid dissipation, which helps improve the motor's thermal efficiency and long-term operational reliability. The design of the fan-shaped fixing block 112 can serve as part of the magnetic flux path, guiding the magnetic field through the rotor more efficiently, reducing magnetic leakage, and improving the motor's torque density and efficiency.

[0030] See Figures 6-7 As shown, the rotor support 11 is provided with a fixing ring 113, which is used to connect the rotating shaft 13. The mounting groove 111 has an expansion groove 114 at one end near the fixing ring 113, and the width of the expansion groove 114 is greater than the width of the mounting groove 111. Specifically, the mounting groove 111 has a mounting buckle 115 at one end near the stator assembly 2, and the fixing ring 113 has a limiting block 116. The limiting block 116 and the mounting buckle 115 are respectively used to abut the two ends of the rotor magnet 12. In this embodiment, the fixing ring 113 serves as the connection point of the rotating shaft 13, and its structural design also optimizes the overall mechanical performance of the rotor. In particular, the expansion groove 114 allows for a certain amount of elastic space during installation, facilitating precise alignment and rapid assembly of the rotor assembly 1, while reducing assembly stress and protecting precision components from damage. In addition, the mounting buckle 115 at one end of the mounting slot 111 works in conjunction with the limiting pressure block 116 on the fixing ring 113 to form a precise clamping and positioning of both ends of the rotor magnet 12, effectively preventing the magnet from loosening or shifting during high-speed rotation, and ensuring the stability and efficiency of the motor operation.

[0031] See Figure 8As shown, the stator frame 21 is formed by splicing multiple I-shaped frames 23 into a ring. Each I-shaped frame 23 has a splicing groove 231 and a splicing boss 232 on both sides. Adjacent I-shaped frames 23 are spliced ​​together via the splicing groove 231 and the splicing boss 232. Specifically, an insulating fixing frame 233 is provided on the I-shaped frame 23, and the stator winding 22 is mounted on the insulating fixing frame 233. In this embodiment, the ring-shaped stator frame 21 is precisely spliced ​​from the I-shaped frames 23, which not only simplifies the assembly process but also enhances the overall mechanical strength and stability of the stator. The ingenious combination of the splicing groove 231 and the boss ensures high-precision docking between the frames, reduces assembly errors, and improves the smoothness of motor operation. The insulating fixing frame 233 effectively isolates the electrical conductivity path between the stator winding 22 and the frame, enhancing electrical insulation performance and ensuring the safe operation of the motor. Furthermore, this structure facilitates the installation and maintenance of the stator winding 22, improving the maintainability of the motor.

[0032] The insulating fixing frame 233 includes an upper housing 234 and a lower housing 235, which are respectively fastened to the upper and lower sides of the I-shaped frame 23. Specifically, the I-shaped frame 23 is provided with a connecting post 236, the upper housing 234 is provided with an upper slot 2341, and the lower housing 235 is provided with a lower slot 2351. The upper slot 2341 and the lower slot 2351 are respectively inserted into the upper and lower sides of the connecting post 236. In this embodiment, the insulating fixing frame 233, through its unique upper housing 234 and lower housing 235 design, tightly fastens to the upper and lower sides of the I-shaped frame 23, effectively providing stable support for key internal components of the motor. Furthermore, through its insulating properties, it isolates electromagnetic interference, ensuring the purity and stability of the motor's operation. In particular, its innovative slot and connecting post 236 mating mechanism ensures that the upper slot 2341 and lower slot 2351 are precisely inserted into both sides of the connecting post 236, simplifying the assembly process and enhancing the structural rigidity and shock resistance. The use of insulating materials further ensures the safety of the motor during operation, reduces the potential risks caused by electrical faults, and provides a solid guarantee for the efficient and stable operation of the motor's stator and rotor mechanism. In addition, the introduction of the insulating fixing frame 233 also optimizes the heat dissipation effect inside the motor.

[0033] One end of the I-beam frame 23 extends to a contact platform 237, on which the terminal block 3 is mounted. In this embodiment, the presence of the contact platform 237 not only provides a solid support platform for the terminal block 3, ensuring the reliability of the electrical connection, but also reduces the impact of external vibrations on the electrical connection points through optimized layout, thereby extending the service life of the motor. Furthermore, the I-beam frame 23 itself possesses excellent structural strength and rigidity, effectively dispersing the stress generated during motor operation, protecting the integrity and precision of the stator and rotor structure, and reducing the risk of deformation due to long-term operation.

[0034] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A stator-rotor mechanism, characterized in that: The system includes a rotor assembly, a stator assembly, and a terminal block. The rotor assembly includes a rotor support, rotor magnets, and a rotating shaft. The rotating shaft is located at the center of the rotor support, which has multiple mounting slots, one end of which extends toward the rotating shaft. The rotor magnets are mounted on the mounting slots. The stator assembly includes a stator frame and stator windings. The stator frame is located on the outer periphery of the rotor support and has multiple stator winding slots. The stator windings are mounted on these slots and are opposite to the rotor magnets. The terminal block is located on the stator frame and connected to the stator windings.

2. The stator-rotor mechanism according to claim 1, characterized in that: Multiple mounting slots are evenly distributed in a circumferential direction on the rotor support, and a fan-shaped fixing block is formed between two adjacent mounting slots.

3. The stator-rotor mechanism according to claim 1, characterized in that: The rotor support is provided with a fixing ring for connecting the rotating shaft. The mounting groove is provided with an expansion groove at one end near the fixing ring, and the width of the expansion groove is greater than the width of the mounting groove.

4. The stator-rotor mechanism according to claim 3, characterized in that: The mounting slot is provided with a mounting buckle at one end near the stator assembly, and the fixing ring is provided with a limiting block. The limiting block and the mounting buckle are respectively used to abut the two ends of the rotor magnet.

5. The stator-rotor mechanism according to claim 1, characterized in that: The stator frame is formed by splicing multiple I-shaped frames into a ring. The two sides of the I-shaped frame are respectively provided with splicing grooves and splicing bosses. Adjacent I-shaped frames are spliced ​​together through splicing grooves and splicing bosses.

6. The stator-rotor mechanism according to claim 5, characterized in that: An insulating fixing frame is provided on the I-shaped frame, and the stator winding is disposed on the insulating fixing frame.

7. The stator-rotor mechanism according to claim 6, characterized in that: The insulating fixing frame includes an upper shell and a lower shell, which are respectively fastened to the upper and lower sides of the I-shaped frame.

8. The stator-rotor mechanism according to claim 7, characterized in that: The I-shaped frame is provided with connecting columns, the upper shell is provided with an upper slot, and the lower shell is provided with a lower slot. The upper slot and the lower slot are respectively inserted into the upper and lower sides of the connecting column.

9. The stator-rotor mechanism according to claim 8, characterized in that: One end of the I-shaped frame extends to a contact platform, and the wiring board is disposed on the contact platform.

10. An electric motor, characterized in that: Includes the stator and rotor mechanism as described in any one of claims 1 to 9.

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