A motor mover structure and a magnetic levitation motor

Abstract

This utility model relates to the field of motor technology, specifically to a motor mover structure and a magnetic levitation motor. The motor mover structure includes a spindle, a mover assembly, and a magnet assembly. The mover assembly is movably sleeved on the outer surface of the spindle, and has a first magnetic pole and a second magnetic pole arranged axially. The magnet assembly includes a first magnet and a second magnet. The first magnet is connected to a first end of the spindle, and the second magnet is connected to a second end of the spindle. The first magnet and the first magnetic pole are adjacent to each other and mutually exclusive, as are the second magnet and the second magnetic pole. Through the repulsive force between the first magnet, the second magnet, and the mover assembly, direct contact and friction between the mover assembly and the magnet assembly and stator assembly are avoided, thereby reducing noise and wear, and improving the motor's working efficiency and service life.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, specifically to a motor mover structure and a magnetic levitation motor. Background Technology

[0002] A magnetic levitation motor is a high-performance drive device that combines magnetic levitation and electric motor technologies. Its working principle involves using a magnetic field to levitate and drive the rotor, achieving frictionless, high-speed, low-noise, and high-precision operation. The main components of a magnetic levitation motor include a rotor, a stator, and a control system. The rotor is responsible for levitation and rotation, the stator generates a magnetic field to drive the rotor's rotation, and the control system adjusts the magnetic field in real time to maintain stable levitation and precise rotation of the rotor. With its advantages of frictionlessness, high speed, low noise, and high precision, magnetic levitation motors have shown broad application prospects in various fields such as industry, medicine, and aerospace. However, magnetic levitation motors still face technical challenges such as high manufacturing costs and complex control systems, but with continuous technological advancements, their application potential is expected to further increase.

[0003] In existing technologies, linear vibration motors are another common type of drive device. The oscillator in a linear vibration motor is connected to a spring via laser welding, resulting in a linear reciprocating motion. However, this structure has the following problems:

[0004] Friction and noise issues: During reciprocating motion, the oscillator is prone to friction and collision with the upper and lower housings and side walls, causing motor noise and affecting vibration performance. This friction not only reduces motor efficiency but may also shorten the equipment's lifespan.

[0005] Spring manufacturing issues: The manufacturing process of springs requires high precision and it is difficult to accurately control the fixed frequency F0, resulting in a large frequency deviation and affecting the performance stability of the motor.

[0006] Complex assembly process: The assembly process of linear vibration motors is complex, which further increases manufacturing costs and difficulty, and also affects product reliability and user experience.

[0007] The aforementioned problems severely limit the performance and lifespan of linear vibration motors, and also reduce the user experience. Utility Model Content

[0008] In view of the above problems, this utility model provides a motor mover structure that has the advantages of reducing friction and noise, improving frequency control accuracy, and simplifying the assembly process.

[0009] Firstly,

[0010] This utility model provides a motor mover structure, including:

[0011] mandrel;

[0012] A moving part assembly is movably sleeved on the outer surface of the spindle, and the moving part assembly is provided with a first magnetic pole and a second magnetic pole along the axial direction;

[0013] The magnetic steel assembly includes a first magnet and a second magnet, wherein the first magnet is connected to a first end of the mandrel, the second magnet is connected to a second end of the mandrel, the first magnet is disposed adjacent to the first magnetic pole so that the first magnet and the mover assembly are mutually exclusive, and the second magnet is disposed adjacent to the second magnetic pole so that the second magnet and the mover assembly are mutually exclusive.

[0014] In some alternative embodiments, the mover assembly includes a first mover magnet and a bearing, the first mover magnet being sleeved on the outer surface of the mandrel via the bearing; the first magnetic pole and the second magnetic pole are respectively arranged axially on both sides of the first mover magnet.

[0015] In some alternative embodiments, the mover assembly includes at least a first mover magnet, a second mover magnet, a counterweight, and a bearing. The first mover magnet, the counterweight, and the second mover magnet are arranged sequentially along the axial direction, and the first mover magnet and the second mover magnet are movably connected to the spindle via bearings. The first magnetic pole is disposed on the outer surface of the first mover magnet, and the second magnetic pole is disposed on the outer surface of the second mover magnet.

[0016] In some alternative embodiments, a buffer pad is also included, which is disposed at any one or more of the first magnet, the second magnet, and the mover assembly to prevent the mover assembly from impacting the first magnet or the second magnet during operation.

[0017] Secondly, this utility model also provides a magnetic levitation motor, including a stator assembly and the aforementioned motor mover structure, wherein the motor mover structure is disposed inside the stator assembly; the mover assembly of the motor mover structure moves along the spindle under the action of the magnetic field of the stator assembly and the magnet assembly.

[0018] In some alternative embodiments, the stator assembly includes a main housing, a first end cover, a second end cover, and a coil assembly. The coil assembly is axially disposed on the inner wall of the main housing. The first end cover and the second end cover are respectively disposed at both ends of the main housing. The first magnet of the magnet assembly is fixed inside the first end cover, the second magnet of the magnet assembly is fixed inside the second end cover, and the mover assembly is located inside the coil assembly.

[0019] In some alternative configurations, the distance between the moving part assembly and the coil assembly is greater than 0.1 mm.

[0020] In some alternative embodiments, the coil assembly includes at least one coil, and when there are multiple coils, the multiple coils are wound individually or collinearly, and the winding methods between adjacent coils are opposite.

[0021] In some alternative embodiments, the coil assembly includes a first coil and a second coil; the main housing is provided with a first mounting cavity and a second mounting cavity spaced apart, the first coil is disposed in the first mounting cavity, and the second coil is disposed in the second mounting cavity; the main housing is provided with at least two connecting holes penetrating the main housing, the first wire end of the first coil and the second wire segment of the second coil are respectively led out from the two connecting holes, and the first wire end and the second wire end are respectively connected to the pads located on the outer surface of the main housing.

[0022] In some alternative embodiments, both the first end cap and the second end cap are provided with a first connecting groove, and a second connecting groove is provided inside the first connecting groove; the first connecting groove is sleeved on the connecting protrusion at the end of the main housing, and the first magnet and the second magnet are fixed inside the second connecting groove.

[0023] This invention provides a motor mover structure and a magnetic levitation motor. Compared with the prior art, its advantages are as follows: The motor mover structure of this invention includes a spindle, a mover assembly, and a magnet assembly; the mover assembly is movably sleeved on the outer surface of the spindle, and the mover assembly has a first magnetic pole and a second magnetic pole arranged axially; and the magnet assembly includes a first magnet and a second magnet, the first magnet being connected to a first end of the spindle, and the second magnet being connected to a second end of the spindle, the first magnet being adjacent to and mutually repelling the first magnetic pole, and the second magnet being adjacent to and mutually repelling the second magnetic pole. Through the repulsive force between the first magnet, the second magnet, and the mover assembly, direct contact and friction between the mover assembly and the magnet assembly and stator assembly are avoided, thereby reducing noise and wear, and improving the motor's working efficiency and service life.

[0024] The above description is merely an overview of the technical solutions of the present utility model embodiments. In order to better understand the technical means of the present utility model embodiments and to implement them in accordance with the contents of the specification, and to make the above and other objects, features and advantages of the present utility model embodiments more obvious and understandable, specific embodiments of the present utility model are described below. Attached Figure Description

[0025] The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0026] Figure 1A schematic diagram of the motor actuator structure provided in Embodiment 1 of this utility model is shown;

[0027] Figure 2 A cross-sectional schematic diagram of the motor mover structure provided in Embodiment 1 of this utility model is shown;

[0028] Figure 3 A cross-sectional schematic diagram of the motor mover structure provided in Embodiment 2 of this utility model is shown;

[0029] Figure 4 A schematic diagram of the structure of the magnetic levitation motor provided in Embodiment 3 of this utility model is shown;

[0030] Figure 5 An exploded schematic diagram of the magnetic levitation motor provided in Embodiment 3 of this utility model is shown.

[0031] in,

[0032] 10. Motor mover structure; 11. Spindle; 12. Mover assembly; 121. First mover magnet; 122. Bearing; 123. Second mover magnet; 124. Counterweight; 13. Magnet assembly; 14. First magnet; 15. Second magnet; 16. Buffer pad;

[0033] 20. Stator assembly; 21. Main housing; 22. First end cover; 23. Second end cover; 231. First connecting groove; 232. Second connecting groove; 24. Coil assembly; 241. First coil; 242. Second coil; 25. Solder pad. Detailed Implementation

[0034] Exemplary embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein.

[0035] Example 1:

[0036] Figures 1-2 This invention illustrates a motor mover structure 10, including a spindle 11, a mover assembly 12, and a magnet assembly 13. The motor mover structure 10 of this invention, by incorporating the magnet assembly 13, ensures that the mover assembly 12 experiences a repulsive force from the magnet assembly 13 in the direction of motion. This prevents direct contact and friction between the mover assembly 12 and the magnet assembly 13 and stator assembly 20 during operation, thereby reducing noise and wear, and improving the motor's efficiency and service life.

[0037] The stator 11 is located inside the stator assembly 20 and serves as a guide shaft for the movement of the mover assembly 12, ensuring that the mover assembly 12 reciprocates along the axial direction. The mover assembly 12 is movably sleeved on the outer surface of the stator 11 and has a first magnetic pole and a second magnetic pole arranged along the axial direction. The mover assembly 12 can reciprocate along the stator 11 under the action of the stator assembly 20. The magnet assembly 13 includes a first magnet 14 and a second magnet 15. The first magnet 14 is connected to the first end of the stator 11, and the second magnet 15 is connected to the second end of the stator 11. The first magnet 14 is arranged adjacent to the first magnetic pole to repel the mover assembly, and the second magnet 15 is arranged adjacent to the second magnetic pole to repel the mover assembly. By positioning the first magnet 14 and the second magnet 15 at both ends of the mandrel 11, the stator assembly 20, when moving to the position of the first magnet 14, experiences repulsion between the first magnet 14 and the first magnetic pole, thereby weakening or canceling the kinetic force of the rotor assembly 12 and preventing collision between the rotor assembly 12 and the first magnet 14. Similarly, when the stator assembly 20 moves to the position of the second magnet 15, the second magnet 15 repels the second magnetic pole.

[0038] In some alternative embodiments, a buffer pad 16 is also included, which is disposed at any one or more of the first magnet, the second magnet, and the moving part assembly to prevent the moving part assembly from impacting the first magnet or the second magnet during operation. In this embodiment, see [reference needed]. Figure 2 The buffer pads can be disposed on the outer surface of the S pole of the first magnet, the outer surface of the S pole of the first moving magnet, the outer surface of the N pole of the second magnet, and the outer surface of the N pole of the first moving magnet. When there are two buffer pads, they can be disposed on the surfaces between the first magnet and the first moving magnet, and on the surfaces between the second magnet and the first moving magnet, respectively, to prevent the moving assembly from colliding with the first magnet or the second magnet during operation.

[0039] The function of the buffer pad 16 is to reduce the direct contact between the mover assembly 12 and the first magnet 14 and the second magnet 15, thereby avoiding wear and noise problems caused by direct contact. By setting the buffer pad 16, the lifespan of the mover assembly 12 can be effectively increased and noise reduced, thereby improving the performance of the magnetic levitation motor and the user experience.

[0040] Specifically, the buffer pad 16 can be made of polymer materials such as polytetrafluoroethylene, rubber, or other materials with good elasticity and wear resistance. These materials can form a flexible contact between the mover assembly 12 and the first magnet 14 and the second magnet 15, absorbing some of the impact force generated during the movement of the mover and reducing friction and noise. In addition, the thickness and hardness of the buffer pad 16 can be adjusted according to the specific application scenario to ensure optimal shock absorption and noise reduction effects.

[0041] Therefore, by providing buffer pads 16 on the surfaces of the first magnet 14 and the second magnet 15 adjacent to the mover assembly 12, the direct contact problem between the mover assembly 12 and the first magnet 14 and the second magnet 15 can be effectively solved, avoiding wear and noise problems, and improving the operational stability and service life of the magnetic levitation motor. Compared with the prior art, this technical solution significantly improves the performance of the magnetic levitation motor, enabling it to perform better in applications requiring high precision and low noise.

[0042] In some alternative methods, see Figure 2 The mover assembly 12 includes a first mover magnet 121 and a bearing 122. The first mover magnet 121 is sleeved on the outer surface of the spindle 11 via the bearing 122. A first magnetic pole and a second magnetic pole are respectively arranged axially on both sides of the first mover magnet. In this embodiment, the mover magnet of this application can be a single magnet with axial poles, and the two poles of the magnet repel the first magnet 14 and the second magnet 15, respectively. Figure 2 In the specific example shown, the S pole of the first magnet is arranged adjacent to the moving magnet, and the N pole of the second magnet is arranged adjacent to the moving magnet. The first magnet is the S pole of the first moving magnet, and the second magnet is the N pole of the first moving magnet; thus, the two poles of the magnets repel the first magnet 14 and the second magnet 15, respectively. In this example, the bearing is composed of a copper-tin alloy and oil; specifically, the bearing consists of 73% copper, 9% tin, and 18% oil, resulting in better wear resistance and lubrication. Example 2:

[0043] In some alternative embodiments, based on embodiment 1, the motor actuator structure 10 of this invention, see [reference needed]. Figure 3 The motor mover structure 10 includes a spindle 11, a mover assembly 12, and a magnet assembly 13. Unlike Embodiment 1, see [link to Embodiment 1]. Figure 1 , Figure 3The mover assembly 12 includes at least a first mover magnet 121, a second mover magnet 123, a counterweight 124, and a bearing 122. The first mover magnet 121, the counterweight 124, and the second mover magnet 123 are arranged sequentially along the axial direction, and the first mover magnet 121 and the second mover magnet 123 are movably connected to the spindle 11 via the bearing 122. A first magnetic pole is located on the outer surface of the first mover magnet 121, and a second magnetic pole is located on the outer surface of the second mover magnet 123. The mover magnet can consist of two or more magnets, with four or more poles arranged axially. A counterweight is placed between adjacent mover magnets. Each magnet has two magnetic poles. The outermost first magnetic pole is positioned to repel the first magnet 123, and the outermost second magnetic pole, located in the opposite direction to the first magnetic pole, is positioned to repel the second magnet 123. Figure 2 In the specific example shown, the S pole of the first magnet is arranged adjacent to the moving part assembly, and the N pole of the second magnet is arranged adjacent to the moving part assembly. The first magnet is the S pole of the first moving part magnet, and the second magnet is the N pole of the second moving part magnet. This achieves that the two poles of the magnets repel the first magnet 14 and the second magnet 15, respectively.

[0044] Furthermore, in this embodiment, the counterweight is a tungsten-nickel-cobalt alloy, specifically, it consists of 96%-98% tungsten, 3.5%-1.5% nickel, and 0.5% cobalt. By making the counterweight a tungsten-nickel-cobalt alloy, it possesses the following characteristics: high density, with a high tungsten content, making its density close to that of pure tungsten; high strength and hardness, exhibiting excellent strength and hardness, suitable for high-stress and wear-resistant environments; good corrosion resistance, performing excellently in various corrosive environments; maintaining strength and stability at high temperatures, suitable for high-temperature environments; good machinability, capable of being formed through powder metallurgy and machining; and good electrical and thermal conductivity, facilitating its use in electronics and thermal management. The bearing is composed of a copper-tin alloy and oil, specifically, it consists of 73% copper, 9% tin, and 18% oil, resulting in better wear resistance and lubrication.

[0045] Example 3:

[0046] See Figures 4-5 The present invention also provides a magnetic levitation motor, including a stator assembly 20 and a motor mover structure 10 of embodiment 1 or embodiment 2, wherein the motor mover structure 10 is disposed inside the stator assembly 20; the mover assembly 12 of the motor mover structure 10 moves along the spindle 11 under the action of the magnetic field of the stator assembly 20 and the magnet assembly 13.

[0047] Specifically, the stator assembly 20 generates a magnetic field after being energized, driving the mover assembly 12 to reciprocate along the spindle 11. The first magnet 14 and the second magnet 15 are respectively fixed inside the first end cover 22 and the second end cover 23 of the stator assembly 20, and repel the magnetic poles of the mover assembly 12. This design enables the mover assembly 12 to reciprocate stably at a fixed frequency. In this way, the performance instability problems caused by the complex spring manufacturing process and frequency deviation in traditional linear vibration motors are solved.

[0048] Through magnetic levitation technology, the mover assembly 12, under the repulsive action of the first magnet 14 and the second magnet 15, can reciprocate stably at a fixed frequency, avoiding the high manufacturing requirements and frequency deviation problems of traditional springs. The magnetic field generated by the stator assembly 20 after energization drives the mover assembly 12 to reciprocate along the spindle 11, solving the problem of friction and collision between the mover assembly 12 and the housing and side walls during reciprocating motion. The design of the stator assembly 20 simplifies the assembly process and improves product reliability and user experience. In this way, the magnetic levitation motor not only solves the friction and noise problems of existing technologies but also overcomes the challenges of complex spring manufacturing and assembly processes.

[0049] In some alternative configurations, the stator assembly 20 includes a main housing 21, a first end cover 22, a second end cover 23, and a coil assembly 24. The coil assembly 24 is axially disposed on the inner wall of the main housing 21. The first end cover 22 and the second end cover 23 are respectively disposed at the two ends of the main housing 21. The first magnet 14 of the magnet assembly 13 is fixed inside the first end cover 22, and the second magnet 15 of the magnet assembly 13 is fixed inside the second end cover 23. The mover assembly 12 is located inside the coil assembly 24. Compared to traditional linear vibration motors, magnetic levitation motors effectively avoid friction and collisions between the vibrator and the housing and sidewalls during movement through magnetic levitation technology, thereby greatly reducing noise and improving work efficiency. In addition, the assembly process of magnetic levitation motors is relatively simple. The design of the main housing 21, end covers, and coils of the stator assembly 20 simplifies the assembly process, improving product reliability and user experience.

[0050] In some alternative configurations, the distance between the mover assembly 12 and the coil assembly 24 is greater than 0.1 mm.

[0051] The distance between the mover assembly 12 and the coil assembly 24 is set to be greater than 0.1 mm. The smaller the distance between the magnet and the coil, the stronger the generated electromagnetic field, which enhances the motor's response time and vibration, thus improving the user experience. If the distance between the mover assembly 12 and the coil is too large, the magnetic field strength will be insufficient, affecting the motor's response time and vibration. Therefore, by setting the distance to be greater than 0.1 mm, sufficient magnetic field strength can be ensured, thereby increasing the motor's electromagnetic force, improving the motor's driving force, and giving the motor a faster response speed and better vibration effect. Preferably, the distance between the mover assembly 12 and the coil assembly 24 can be set to 0.1 mm, 0.2 mm, 0.3 mm, 0.4 mm, etc.

[0052] Specifically, the distance between the mover assembly 12 and the coil assembly 24 can be achieved through precision machining and assembly processes. For example, a high-precision winding fixture can be used to machine the mover assembly 12 and the coil to ensure that their distance meets the design requirements. Furthermore, during assembly, specialized fixtures and tools can be used to ensure that the distance between the mover assembly 12 and the coil is precisely controlled within a range greater than 0.1 mm. As a preferred embodiment, an adjustment mechanism can be provided between the mover assembly 12 and the coil to allow for fine-tuning after assembly to ensure that the distance meets the design requirements.

[0053] The technical feature of setting the distance between the mover assembly 12 and the coil assembly 24 to be greater than 0.1mm solves the problem of insufficient magnetic field strength and slow motor response time caused by excessive distance between the mover assembly 12 and the coil. Compared with the prior art, this invention optimizes the distance between the mover assembly 12 and the coil to ensure sufficient magnetic field strength, thereby improving the enhanced electromagnetic force of the motor, increasing the motor driving force, and enabling the motor to have a faster response speed and better vibration effect, thus improving the user experience. Therefore, this invention has significant technical advantages in solving the problem of excessive distance between the mover assembly 12 and the coil.

[0054] In some alternative configurations, the coil assembly 24 includes at least one coil. When there are multiple coils, they can be wound individually or collinearly with opposite winding patterns between adjacent coils. In this embodiment, multiple coils can be wound individually or collinearly with opposite winding patterns between adjacent coils. For example, one coil in an adjacent coil can be wound clockwise, while the other can be wound counterclockwise. This winding method is simple and easy to implement, and effectively solves the problem of inconsistent magnetic field directions. This can be achieved through different winding processes. For example, manual winding, mechanical winding, or automated equipment can be used. Manual winding is suitable for small-batch production, mechanical winding is suitable for medium-batch production, and automated equipment is suitable for large-scale production. Each winding method has its advantages and applicable scope, and the specific choice can be determined based on production needs and actual conditions.

[0055] In some alternative configurations, the coil assembly 24 includes a first coil 241 and a second coil 242. The main housing 21 has a first mounting cavity and a second mounting cavity spaced apart. The first coil 241 is disposed in the first mounting cavity, and the second coil 242 is disposed in the second mounting cavity. The main housing 21 has at least two through-holes. The first end of the first coil 241 and the second segment of the second coil 242 are respectively led out from the two through-holes, and the first and second ends are respectively connected to pads 25 located on the outer surface of the main housing 21. Alternatively, the first coil 241 and the second coil 242 can be wound separately, i.e., the first coil 241 is wound clockwise and the second coil 242 is wound counterclockwise, and led out through different through-holes in the main housing 21. This allows for independent control of the first coil 241 and the second coil 242, resulting in higher control precision for the magnetic levitation motor.

[0056] Compared with existing technologies, this invention solves the problem of the influence of the winding direction of the first coil 241 and the second coil 242 on the formation of the magnetic field through a specific winding method, ensuring the stability of the magnetic field, improving the operating efficiency and accuracy of the mover magnet assembly 13, and reducing friction and energy loss during movement. Therefore, this invention has significant technical advantages in improving the performance of magnetic levitation motors.

[0057] The arrangement of the first and second mounting cavities allows the first coil 241 and the second coil 242 to be installed in different positions within the main housing 21, thus avoiding mutual interference between the coils. The connecting hole penetrating the main housing 21 allows the coil leads to be smoothly led out and connected to the solder pads 25 on the outer surface, ensuring reliable electrical connections. This design solves the problems of coil installation and lead wiring, simplifies the installation process, and improves the overall performance and reliability of the motor.

[0058] Specifically, the separation between the first and second mounting cavities can be achieved by installing a partition on the inner wall of the main housing 21. This effectively separates the two coils, preventing electromagnetic interference during operation. The connection holes can be positioned at different locations on the main housing 21 to ensure that the leads can be smoothly led out and connected to the external pads 25. The pads 25 can be designed using conventional electrical connection methods, such as soldering or other conductive materials, to ensure the stability and reliability of the connection.

[0059] Therefore, this invention solves the installation and wiring problems of the first coil 241 and the second coil 242 by providing spaced mounting cavities within the main housing 21 and connecting holes penetrating the main housing 21. Compared with the prior art, the design of this invention simplifies the coil installation process, reduces interference between coils, and improves the reliability of electrical connections, thereby enhancing the overall performance and reliability of the motor.

[0060] In some alternative configurations, both the first end cap 22 and the second end cap 23 are provided with a first connecting groove 231, and a second connecting groove 232 is provided inside the first connecting groove 231; the first connecting groove 231 is sleeved on the connecting protrusion at the end of the main housing 21, and the first magnet 14 and the second magnet 15 are fixed inside the second connecting groove 232.

[0061] In this invention, both the first end cap 22 and the second end cap 23 are provided with a first connecting groove 231, and a second connecting groove 232 is also provided within the first connecting groove 231. The first connecting groove 231 is sleeved on the connecting protrusion at the end of the main housing 21, thereby achieving a fixed connection between the main housing 21 and the first end cap 22 and the second end cap 23. Simultaneously, the first magnet 14 and the second magnet 15 are fixed within the second connecting groove 232 to fix the mover assembly 12 to the first end cap 22 and the second end cap 23. These technical features, through mutual cooperation, ensure the stability of the connection between the end cap and the main housing 21, while simultaneously guaranteeing the fixation of the magnet assembly 13, thus solving the stability problem of the connection between the end cap and the main housing 21 of the magnetic levitation motor.

[0062] Specifically, the design of the first connecting groove 231 and the second connecting groove 232 can be implemented in various ways. For example, the first connecting groove 231 can be an annular groove, and the second connecting groove 232 can be a smaller annular groove disposed within the first connecting groove 231. The size and shape of the first connecting groove 231 should match the connecting protrusion at the end of the main housing 21 to ensure a tight fit and stable connection. The size and shape of the second connecting groove 232 should match the first magnet 14 and the second magnet 15 to ensure their secure fixation. Furthermore, the material selection for the first connecting groove 231 and the second connecting groove 232 is also very important. It is recommended to use materials with high strength and corrosion resistance, such as stainless steel or high-strength plastics, to improve the reliability and durability of the connection.

[0063] This invention achieves a stable connection between the end caps and the main housing 21, and fixes the magnet assembly 13, by providing a first connecting groove 231 and a second connecting groove 232 on the first end cap 22 and the second end cap 23, and by fitting the first connecting groove 231 onto the connecting protrusion at the end of the main housing 21, while simultaneously fixing the first magnet 14 and the second magnet 15 within the second connecting groove 232. Compared with the prior art, the design of this invention not only improves the overall structural stability of the magnetic levitation motor, but also simplifies the installation process, reduces manufacturing costs, and improves product reliability and service life.

[0064] The algorithms or displays provided herein are not inherently related to any particular computer, virtual system, or other device. Furthermore, the embodiments of this invention are not directed to any particular programming language.

[0065] Numerous specific details are set forth in the specification provided herein. However, it will be understood that embodiments of the present invention may be practiced without these specific details. Similarly, for the sake of brevity and to aid in understanding one or more aspects of the invention, in the above description of exemplary embodiments of the invention, various features of the embodiments of the invention are sometimes grouped together in a single embodiment, figure, or description thereof. The claims, which follow the detailed description, are hereby expressly incorporated into that detailed description, wherein each claim itself constitutes a separate embodiment of the invention.

[0066] Those skilled in the art will understand that the modules in the device of the embodiment can be adaptively changed and placed in one or more devices different from that embodiment. Modules, units, or components in the embodiment can be combined into a single module, unit, or component, and further, they can be divided into multiple sub-modules, sub-units, or sub-components, except that at least some of such features and / or processes or units are mutually exclusive.

[0067] It should be noted that the above embodiments are illustrative of the present invention and not restrictive of it, and those skilled in the art can devise alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses should not be construed as limiting the claims. The word "comprising" does not exclude the presence of elements or steps not listed in the claims. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The present invention can be implemented by means of hardware comprising several different elements and by means of a suitably programmed computer. In the unit claims listing several means, several of these means may be embodied by the same item of hardware. The use of the words first, second, and third, etc., does not indicate any order. These words can be interpreted as names. The steps in the above embodiments, unless otherwise specified, should not be construed as limiting the order of execution.

Claims

1. A rotor structure, characterized by, include: mandrel (11); The moving part assembly (12) is movably sleeved on the outer surface of the spindle (11), and the moving part assembly (12) is provided with a first magnetic pole and a second magnetic pole along the axial direction; The magnet assembly (13) includes a first magnet (14) and a second magnet (15), wherein the first magnet (14) is connected to a first end of the mandrel (11), and the second magnet (15) is connected to a second end of the mandrel (11). The first magnet (14) is arranged adjacent to the first magnetic pole so that the first magnet and the mover assembly are mutually exclusive, and the second magnet (15) is arranged adjacent to the second magnetic pole so that the second magnet and the mover assembly are mutually exclusive.

2. The motor mover structure according to claim 1, characterized in that, The mover assembly (12) includes a first mover magnet (121) and a bearing (122). The first mover magnet (121) is sleeved on the outer surface of the mandrel (11) through the bearing (122). The first magnetic pole and the second magnetic pole are respectively arranged on both sides of the first mover magnet along the axial direction.

3. The motor mover structure according to claim 1, characterized in that, The mover assembly (12) includes at least a first mover magnet (121), a second mover magnet (123), a counterweight (124), and a bearing (122). The first mover magnet (121), the counterweight (124), and the second mover magnet (123) are arranged sequentially along the axial direction, and the first mover magnet (121) and the second mover magnet (123) are movably connected to the spindle (11) through the bearing (122). The first magnetic pole is disposed on the outer side of the first mover magnet (121), and the second magnetic pole is disposed on the outer side of the second mover magnet (123).

4. The motor mover structure according to claim 2 or 3, characterized in that, It also includes a buffer pad, which is disposed at any one or more of the first magnet (14), the second magnet (15) and the moving part assembly to prevent the moving part assembly from impacting the first magnet or the second magnet during operation.

5. A magnetic levitation motor, characterized in that, It includes a stator assembly (20) and a motor mover structure (10) as described in any one of claims 1-4, wherein the motor mover structure (10) is disposed inside the stator assembly (20); the mover assembly (12) of the motor mover structure (10) moves along the spindle (11) under the action of the magnetic field of the stator assembly (20) and the magnet assembly (13).

6. The magnetic levitation motor according to claim 5, characterized in that, The stator assembly (20) includes a main housing (21), a first end cover (22), a second end cover (23), and a coil assembly (24). The coil assembly (24) is axially disposed on the inner wall of the main housing (21). The first end cover (22) and the second end cover (23) are respectively disposed on both ends of the main housing (21). The first magnet (14) of the magnet assembly (13) is fixed inside the first end cover (22), and the second magnet (15) of the magnet assembly (13) is fixed inside the second end cover (23). The mover assembly (12) is located inside the coil assembly (24).

7. The magnetic levitation motor according to claim 6, characterized in that, The distance between the moving part assembly (12) and the coil assembly (24) is greater than 0.1 mm.

8. The magnetic levitation motor according to claim 6, characterized in that, The coil assembly (24) includes at least one coil. When there are multiple coils, the multiple coils are wound individually or co-linearly and the winding methods between adjacent coils are opposite.

9. The magnetic levitation motor according to claim 6, characterized in that, The coil assembly (24) includes a first coil (241) and a second coil (242); the main housing (21) is provided with a first mounting cavity and a second mounting cavity arranged at intervals, the first coil (241) is disposed in the first mounting cavity, and the second coil (242) is disposed in the second mounting cavity; the main housing (21) is provided with at least two connecting holes penetrating the main housing (21), the first wire end of the first coil (241) and the second wire segment of the second coil (242) are respectively led out from the two connecting holes, and the first wire end and the second wire end are respectively connected to the pads (25) located on the outer surface of the main housing (21).

10. The magnetic levitation motor according to claim 9, characterized in that, The first end cap (22) and the second end cap (23) are both provided with a first connecting groove (231), and a second connecting groove (232) is provided in the first connecting groove (231); the first connecting groove (231) is sleeved on the connecting protrusion at the end of the main housing (21), and the first magnet (14) and the second magnet (15) are fixed in the second connecting groove (232).

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