A magnetic yoke fixing assembly of a magnetic levitation motor stator, a stator and a magnetic levitation motor

Abstract

This invention provides a yoke fixing assembly for a magnetic levitation motor stator, a stator, and a magnetic levitation motor. The yoke fixing assembly includes a yoke fixing seat and a yoke fixing structure. The yoke fixing seat has an mounting slot and a snap-fit ​​platform. The yoke to be fixed can pass through the mounting slot and snap-fit ​​with the snap-fit ​​platform, thereby limiting and fixing the yoke in the radial direction. The yoke fixing structure covers the top of the yoke to be fixed and is fixedly connected to the yoke fixing seat. In this way, the axial direction of the yoke to be fixed can be limited and fixed. Therefore, through the cooperation of the yoke fixing seat and the yoke fixing structure, the radial and axial directions of the yoke to be fixed can be limited and fixed, improving the installation stability of the yoke to be fixed, optimizing the magnetic flux path, and enabling the motor stator to be assembled and debugged outside the motor housing.

Description

Technical Field

[0001] This application relates to the field of magnetic levitation motor technology, and in particular to a magnetic yoke fixing assembly for a magnetic levitation motor stator, a stator, and a magnetic levitation motor. Background Technology

[0002] The magnetic yoke is the core component of the magnetic conductor in a magnetic levitation motor. Its fixing method affects the stability of the magnetic field, the motor's performance, and the efficiency of its debugging and maintenance. In existing technologies, the magnetic yoke typically relies on the motor housing for positioning and fixation. Therefore, the motor stator needs to be directly installed and fixed inside the motor housing, making it impossible to assemble and debug the stator outside the housing. This leads to difficulties in wiring adjustments and limitations in sensor adjustments during subsequent debugging and maintenance, making the installation, debugging, and maintenance of the motor stator cumbersome and time-consuming. Utility Model Content

[0003] To address the aforementioned technical problems, this application provides a locking clamp and clamping system.

[0004] In a first aspect, this application provides a magnetic yoke fixing assembly for a stator of a magnetic levitation motor, including a magnetic yoke fixing base and a magnetic yoke fixing structure;

[0005] The magnetic yoke fixing base has an installation through groove and a snap-fit ​​platform;

[0006] The magnetic yoke to be fixed is inserted into the mounting slot and engaged with the locking platform;

[0007] The magnetic yoke fixing structure covers the top of the magnetic yoke and is fixedly connected to the magnetic yoke fixing seat.

[0008] In some embodiments of this application, the magnetic yoke fixing structure includes multiple magnetic yoke fixing units, each magnetic yoke fixing unit fixing a magnetic yoke.

[0009] In some embodiments of this application, the magnetic yoke fixing unit includes a fixing part and a mounting part, with the mounting part connected to both ends of the fixing part; the fixing part and the mounting part are integrally formed.

[0010] In some embodiments of this application, the mounting portion extends toward the axis, a snap-fit ​​groove is formed between the mounting portion and the fixing portion, and the magnetic yoke engages with the snap-fit ​​groove.

[0011] In some embodiments of this application, the magnetic yoke fixing structure is ring-shaped, which can fix multiple magnetic yokes at the same time.

[0012] In some embodiments of this application, the magnetic yoke fixing structure is made of a non-magnetic material.

[0013] In some embodiments of this application, there are multiple mounting slots, and the multiple mounting slots are evenly distributed along the circumference.

[0014] In some embodiments of this application, a potting groove is provided around the mounting groove, which extends in the same direction as and is connected to the mounting groove.

[0015] In some embodiments of this application, the magnetic yoke fixing seat includes a first fixing seat and a second fixing seat disposed on the top surface of the first fixing seat; the top of the second fixing seat has a third top surface, and the periphery of the third top surface is recessed to form a fourth top surface.

[0016] In some embodiments of this application, between every two mounting slots, the outer periphery of the second fixing seat is recessed in the radial direction to form a sensor mounting slot; a sensor mounting hole extending in the radial direction and penetrating the second fixing seat is formed on the inner wall surface of the sensor mounting slot.

[0017] In a second aspect, this application provides a stator, including the magnetic yoke fixing assembly, magnetic yoke, coil assembly, sensor, circuit board, second magnetic yoke, fixing plate, and connecting support structure of the above-described magnetic levitation motor stator;

[0018] One end of the magnetic yoke is inserted into and fixed in the magnetic yoke fixing assembly, and the other end extends into the magnetic yoke mounting hole of the second magnetic yoke; the circuit board is disposed below the magnetic yoke fixing base; the sensor is disposed on the magnetic yoke fixing base;

[0019] The coil assembly is sleeved on the magnetic yoke and located between the magnetic yoke fixing seat and the second magnetic yoke; the fixing plate is disposed at the bottom of the second magnetic yoke; one end of the connecting support structure is inserted into the second magnetic yoke and connected to the fixing plate, and the other end is connected to the magnetic yoke fixing seat.

[0020] In some embodiments of this application, the magnetic yoke includes a radially disposed first segment and a second segment extending axially from one end of the first segment; a first top surface is formed on the top of the first segment, and a second top surface is formed by an inwardly recessed periphery of the first top surface.

[0021] In some embodiments of this application, the end face of the second segment of the magnetic yoke facing the axis is an arc surface.

[0022] In some embodiments of this application, the second magnetic yoke is provided with a plurality of cut-off through slots, which are interconnected with the magnetic yoke mounting holes.

[0023] A third aspect of this application provides a magnetic levitation motor, including the aforementioned stator and a motor housing, wherein the stator is disposed within the motor housing.

[0024] Compared with the prior art, the present invention has the following advantages and beneficial effects: The magnetic yoke fixing assembly of the magnetic levitation motor stator of this application includes a magnetic yoke fixing seat and a magnetic yoke fixing structure. The magnetic yoke fixing seat has an installation through slot and a snap-fit ​​platform. The magnetic yoke to be fixed can pass through the installation through slot and snap-fit ​​with the snap-fit ​​platform, which can realize the radial direction limiting and fixing of the magnetic yoke to be fixed. The magnetic yoke fixing structure covers the top of the magnetic yoke to be fixed and is fixedly connected to the magnetic yoke fixing seat. In this way, the axial direction of the magnetic yoke to be fixed can be limited and fixed. Therefore, through the cooperation of the magnetic yoke fixing seat and the magnetic yoke fixing structure, the radial and axial directions of the magnetic yoke to be fixed can be limited and fixed, which improves the installation stability of the magnetic yoke to be fixed, optimizes the magnetic flux path, and enables the motor stator to be assembled and debugged outside the motor housing.

[0025] It should be understood that the above general description and the following detailed description are merely exemplary and explanatory, and do not limit this document. Attached Figure Description

[0026] The accompanying drawings, which form part of this document, are used to provide a further understanding of the document. The illustrative embodiments and descriptions herein are used to explain the document and do not constitute an undue limitation thereof. In the drawings:

[0027] Figure 1 This is a schematic diagram of the structure of the magnetic yoke fixing assembly of the stator of a magnetic levitation motor provided in an exemplary embodiment of this application;

[0028] Figure 2 This is an exploded view of the magnetic yoke fixing assembly of the stator of a magnetic levitation motor provided in an exemplary embodiment of this application;

[0029] Figure 3 This is an exploded view of the stator provided in an exemplary embodiment of this application;

[0030] Figure 4 This is a schematic diagram of the stator structure provided in an exemplary embodiment of this application;

[0031] Figure 5 This is a front view of the stator provided in an exemplary embodiment of this application;

[0032] Figure 6 yes Figure 5 Sectional view at point AA;

[0033] Figure 7 This is a top view of the stator of a magnetic levitation motor provided in an exemplary embodiment of this application;

[0034] Figure 8 This is an exploded view of the magnetic yoke and coil assembly to be fixed provided in an exemplary embodiment of this application;

[0035] Figure 9This is an exploded view of the stator and housing of a magnetic levitation motor provided in an exemplary embodiment of this application.

[0036] In the picture:

[0037] 10. Motor housing; 20. Motor stator;

[0038] 201. Magnetic yoke fixing seat; 2011. First fixing seat; 2012. Second fixing seat; 2013. Mounting through slot; 2014. Third top surface; 2015. Fourth top surface; 2016. Sensor mounting slot; 2017. Sensor mounting hole; 2018. Snap-fit ​​platform; 202. Magnetic yoke; 2021. First section; 2021A. First top surface; 2021B. Second top surface; 2021C. Arc surface; 2022. Second section; 203. Magnetic yoke fixing structure; 2 031. Mounting part; 2032. Fixing part; 2033. Snap-fit ​​groove; 204. Coil assembly; 2041. Coil fixing sleeve; 2041A. Fixing sleeve body; 2041B. Annular coil partition; 2042. First coil; 2043. Second coil; 205. Sensor; 206. Circuit board; 207. Second magnetic yoke; 2071. Magnetic yoke mounting hole; 2072. Cut-off through groove; 208. Fixing plate; 210. Connecting support structure; 211. Glue potting tank. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be arbitrarily combined with each other.

[0040] The magnetic yoke is the core component of the magnetic conductor in a magnetic levitation motor. Its fixing method affects the stability of the magnetic field, the motor's performance, and the efficiency of its debugging and maintenance. In existing technologies, the magnetic yoke typically relies on the motor housing for positioning and fixation. Therefore, the motor stator needs to be directly installed and fixed inside the motor housing, making it impossible to assemble and debug the stator outside the housing. This leads to difficulties in wiring adjustments and limitations in sensor adjustments during subsequent debugging and maintenance, making the installation, debugging, and maintenance of the motor stator cumbersome and time-consuming.

[0041] Based on this, an exemplary embodiment of this application provides a magnetic yoke fixing assembly for a magnetic levitation motor stator, a stator, and a magnetic levitation motor. The magnetic yoke fixing assembly for the magnetic levitation motor stator includes a magnetic yoke fixing seat and a magnetic yoke fixing structure. The magnetic yoke fixing seat has an mounting slot and a snap-fit ​​platform. The magnetic yoke to be fixed can pass through the mounting slot and snap-fit ​​with the snap-fit ​​platform, thereby achieving radial positioning and fixing of the magnetic yoke. The magnetic yoke fixing structure covers the top of the magnetic yoke and is fixedly connected to the magnetic yoke fixing seat. In this way, the axial positioning and fixing of the magnetic yoke can be achieved. Therefore, the cooperation of the magnetic yoke fixing seat and the magnetic yoke fixing structure can achieve radial and axial positioning and fixing of the magnetic yoke, improve the installation stability of the magnetic yoke, optimize the magnetic flux path, and enable the motor stator to be assembled and debugged outside the motor housing.

[0042] Example 1:

[0043] An exemplary embodiment of this application provides a magnetic yoke fixing assembly for the stator of a magnetic levitation motor, such as... Figure 1 and 2 As shown, the magnetic yoke fixing assembly includes a magnetic yoke fixing seat 201 and a magnetic yoke fixing structure 203. The magnetic yoke fixing seat 201 has an installation through groove 2013 and a snap-fit ​​platform 2018. The magnetic yoke 202 to be fixed can pass through the installation through groove 2013 and snap-fit ​​with the snap-fit ​​platform 2018. The magnetic yoke fixing structure 203 covers the top of the magnetic yoke 202 to be fixed and is fixedly connected to the magnetic yoke fixing seat 201 by fasteners. In this way, the cooperation between the magnetic yoke fixing seat 201 and the magnetic yoke fixing structure 203 can realize the limiting and fixing of the magnetic yoke 202 in the radial and axial directions, improve the installation stability of the magnetic yoke 202, and enable the motor stator to be assembled and debugged outside the motor housing 10.

[0044] The magnetic yoke 202 to be fixed on the stator of a magnetic levitation motor is typically an inverted L-shaped yoke, such as... Figure 8 As shown, the magnetic yoke 202 includes a first segment 2021 arranged radially and a second segment 2022 extending axially from one end of the first segment 2021.

[0045] like Figure 1 and 2As shown, the magnetic yoke fixing seat 201 includes a first fixing seat 2011 and a second fixing seat 2012 disposed on the top surface of the first fixing seat 2011; the second fixing seat 2012 protrudes axially from the first fixing seat 2011; the first fixing seat 2011 is provided with a plurality of mounting holes evenly distributed along the circumference around the second fixing seat 2012, the mounting holes being used to realize the connection with the connection support structure 210 of the motor stator; the second fixing seat 2012 is formed with a plurality of axially extending mounting slots 2013, and a snap-fit ​​platform 2018 is formed on the side of the mounting slots 2013 facing the axis. The shape of the mounting slot 2013 is adapted to the cross-sectional shape of the second segment 2022 of the magnetic yoke 202 to be fixed. For example, the cross-sectional shape of the second segment 2022 of the magnetic yoke 202 in this application is rectangular, so the shape of the mounting slot 2013 is a rectangle that is adapted to it. The second segment 2022 of the magnetic yoke 202 to be fixed can be inserted into the magnetic yoke fixing seat 201, and the first segment 2021 can be snapped onto the snap-fit ​​platform 2018 to achieve radial limiting and fixing of the magnetic yoke 202. Preferably, the multiple mounting slots 2013 are evenly distributed circumferentially, so that the multiple magnetic yokes 202 are evenly distributed circumferentially, which can ensure uniform magnetic field distribution and improve the stability of the magnetic field.

[0046] Preferably, to facilitate glue dispensing, a glue dispensing groove 211 is provided around the mounting groove 2013, extending in the same direction as and communicating with the mounting groove 2013. For example... Figure 1 As shown, each of the four corners of the mounting slot 2013 is provided with a glue-filling groove 211 to fill the glue-filling groove 211 and achieve uniform and stable fixation of the magnetic yoke 202.

[0047] To facilitate the installation and fixing of the magnetic yoke fixing structure 203, a third top surface 2014 is formed on the top of the second fixing seat 2012, and a fourth top surface 2015 is formed by the inward concavity of the outer periphery of the third top surface 2014. Both the magnetic yoke fixing structure 203 and the magnetic yoke fixing seat 201 are provided with threaded holes, and the positions of the threaded holes are mutually adapted. When the magnetic yoke fixing structure 203 is covered on the magnetic yoke 202, the magnetic yoke fixing structure 203 can be fixed by fasteners, thereby limiting the axial and radial movement of the magnetic yoke 202 and preventing the magnetic yoke 202 from coming out of the magnetic yoke fixing seat 201. This can improve the installation stability of the magnetic yoke 202. In this way, the magnetic flux path can be optimized. When the stator of the magnetic levitation motor is being checked or the motor is working, the stability of the magnetic field can be maintained, the magnetic field distortion can be reduced, the anti-interference performance of the magnetic field can be improved, the accuracy of the motor stator check can be improved, and the risk of dynamic offset when the rotor is levitated during motor operation can be reduced.

[0048] Preferably, to match the structure of the second fixing seat 2012 and improve the stability of the magnetic yoke 202, the top of the magnetic yoke 202 to be fixed has a first top surface 2021A, and the outer periphery of the first top surface 2021A is recessed to form a second top surface 2021B. When the magnetic yoke 202 to be fixed is installed in the mounting slot 2013, the third top surface 2014 is flush with the first top surface 2021A, and the fourth top surface 2015 is flush with the second top surface 2021B. In this way, the magnetic yoke fixing structure 203 can be covered on the second fixing seat 2012 and fixed by fasteners. The bottom surface of the magnetic yoke fixing structure 203 presses against the fourth top surface 2015 of the second fixing seat 2012 and the second top surface 2021B of the first magnetic flux, thereby limiting and fixing the axial and radial directions of the magnetic yoke 202 and preventing the magnetic yoke 202 from moving in the circumferential and radial directions.

[0049] like Figure 1 and 2 As shown, a sensor mounting groove 2016 and a sensor mounting hole 2017 are formed between every two mounting through grooves 2013 on the second fixing base 2012; the sensor mounting groove 2016 and the sensor mounting hole 2017 are interconnected; the sensor mounting hole 2017 extends radially and penetrates the second fixing base 2012.

[0050] For example, the magnetic yoke fixing structure 203 includes multiple magnetic yoke fixing units, each fixing a magnetic yoke 202 to be fixed. The magnetic yoke fixing units are sheet-like structures, and each unit is not interconnected to provide space for the installation and adjustment of the sensor 205. Each magnetic yoke fixing unit includes a fixing part 2032 and a mounting part 2031, with the mounting part 2031 connected to both ends of the fixing part 2032; the fixing part 2032 and the mounting part 2031 are integrally formed. The mounting part 2031 extends axially, forming a snap-fit ​​groove 2033 between the mounting part 2031 and the fixing part 2032, whereby the magnetic yoke 202 to be fixed engages with the snap-fit ​​groove 2033. When the magnetic yoke fixing unit is installed on the magnetic yoke fixing seat 201, the magnetic yoke 202 to be fixed can be snapped into the snap-fit ​​groove 2033, thus restricting the axial direction and movement of the magnetic yoke 202.

[0051] Preferably, the magnetic yoke fixing structure 203 is made of a non-magnetic material, which does not affect the distribution of the magnetic field and has a small thickness. After being installed on the magnetic yoke fixing base 201, the top surface of the magnetic yoke fixing structure 203 is flush with or lower than the third top surface 2014 of the magnetic yoke fixing base 201. For example, the magnetic yoke fixing structure 203 can be made of steel, which allows the magnetic yoke fixing structure 203 to have high strength while having a small thickness.

[0052] Example 2:

[0053] An exemplary embodiment of this application provides a magnetic yoke fixing assembly for the stator of a magnetic levitation motor. Based on Embodiment 1 described above, the main difference between this embodiment and Embodiment 1 is that the magnetic yoke fixing structure 203 is annular, and multiple evenly distributed snap-fit ​​grooves 2033 facing the axis are provided on the magnetic yoke fixing structure 203. The shape of the snap-fit ​​grooves 2033 is adapted to the shape of the magnetic yokes 202 to be fixed, allowing the magnetic yoke fixing structure 203 to simultaneously fix multiple magnetic yokes 202 to be fixed. When the motor is small, such as a small motor or a micro motor, to save installation space, after debugging and before potting the stator in the motor housing 10, the magnetic yoke fixing structure 203 can be removed from the stator before potting. In this case, the magnetic yoke fixing structure 203 serves as a tooling for fixing the magnetic yokes 202 to be fixed and can be reused for assembling other magnetic yokes. When the magnetic yoke fixing structure 203 is used as a tooling to fix the magnetic yoke 202, the magnetic yoke fixing structure 203 can have a large thickness in order to increase its structural strength.

[0054] Example 3:

[0055] An exemplary embodiment of this application provides a stator for a magnetic levitation motor, such as... Figures 3 to 7 As shown, the stator of the magnetic levitation motor includes the magnetic yoke fixing assembly in embodiment 1 or 2, as well as the magnetic yoke 202 to be fixed, coil assembly 204, sensor 205, circuit board 206, second magnetic yoke 207, fixing plate 208, and connecting support structure 210; the second section 2022 of the magnetic yoke 202 can be inserted into the magnetic yoke fixing seat 201, and the end of the second section 2022 of the magnetic yoke 202 extends into the magnetic yoke mounting hole 2071 of the second magnetic yoke 207, so that both ends of the magnetic yoke 202 are positioned and fixed.

[0056] Preferably, the end face of the second segment 2022 of the magnetic yoke 202 facing the shaft is an arc surface 2021C. In this way, the distance between the rotor and the arc surface 2021C of the magnetic yoke 202 is uniform, which makes the magnetic gap of the magnetic field uniform, thereby improving the running stability of the rotor and the overall stability of the motor.

[0057] The circuit board 206 is located below the magnetic yoke fixing seat 201; the circuit board 206 has through holes that match the cross-sectional shape of the second section 2022 of the magnetic yoke 202, so that the magnetic yoke 202 can pass through.

[0058] The outer ring of sensor 205 has an external thread that matches the internal thread of sensor mounting hole 2017, enabling the installation of sensor 205. The sensor mounting slot 2016 allows for convenient real-time adjustment of the distance between the sensor 205 detection end and the axis during debugging, improving the convenience of debugging and the accuracy of stator calibration.

[0059] like Figures 2 to 4 As shown, the coil assembly 204 is sleeved on the second section 2022 of the yoke 202, and is located between the yoke fixing seat 201 and the second yoke 207; as Figure 8 As shown, the coil assembly 204 includes a coil fixing sleeve 2041, a first coil 2042, and a second coil 2043; the first coil 2042 and the second coil 2043 are evenly wound on the coil fixing sleeve 2041. The coil fixing sleeve 2041 is preferably made of a non-conductive and non-magnetic material, such as rubber, to prevent damage to the coil. The coil assembly 204 adopts a modular design. Before assembling the stator, the coil assembly 204 can be fabricated first, and then installed with other stator components. This not only facilitates stator assembly and improves assembly efficiency, but also facilitates subsequent stator maintenance and makes it easy to replace the coil assembly 204.

[0060] The coil fixing sleeve 2041 includes a hollow fixing sleeve body 2041A and an annular coil partition 2041B. The annular coil partition 2041B is disposed at both ends and the middle of the fixing sleeve body 2041A, forming a winding space for a first coil 2042 and a winding space for a second coil 2043. The first coil 2042 is wound in the first coil 2042 winding space, and the second coil 2043 is wound in the second coil 2043 winding space. For example, the first coil 2042 can be a levitation coil, which can provide levitation force for the rotor, and the second coil 2043 can be a rotating coil, which can provide rotational force for the rotor. To facilitate glue filling, a glue filling groove 211 is provided around the inner hole of the coil fixing sleeve 2041, extending in the same direction as the inner hole and communicating with it.

[0061] like Figure 3 As shown, the top and bottom surfaces of the second magnetic yoke 207 are parallel to each other. The second magnetic yoke 207 is a planar magnetic yoke, and multiple cut-off slots 2072 are formed on the second magnetic yoke 207. Each cut-off slot 2072 is interconnected with a corresponding magnetic yoke mounting hole 2071. The cut-off slots 2072 can cut off the eddy currents generated on the second magnetic yoke 207 and surrounding the magnetic yoke mounting hole 2071, so as to reduce the heat generated by the eddy currents and reduce the energy loss of the motor. Preferably, the cut-off slots 2072 are located on the side of the second magnetic yoke 207 away from the axis. The cut-off slots 2072 penetrate through the top and bottom of the second magnetic yoke 207 and are relatively narrow, so as to ensure the installation stability of the magnetic yoke 202 while cutting off the eddy currents. In order to facilitate glue filling, glue filling grooves 211 are provided around the magnetic yoke mounting hole 2071 and are interconnected with each other in the same extending direction as the magnetic yoke mounting hole 2071.

[0062] One end of the connecting support structure 210 is inserted into the second magnetic yoke 207 and connected to the fixing plate 208, and the other end is connected to the magnetic yoke fixing seat 201. Preferably, the connecting support structure 210 is a connecting nut column. The fixing plate 208 is set at the bottom of the second magnetic yoke 207 and is connected and fixed to the connecting support structure 210 by fasteners.

[0063] Example 4:

[0064] An exemplary embodiment of this application provides a magnetic levitation motor, such as Figure 9 As shown, the magnetic levitation motor includes the magnetic levitation motor stator 20 of Embodiment 3 and the motor housing 10, with the magnetic levitation motor stator 20 disposed inside the motor housing 10.

[0065] In this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that an article or device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such an article or device. Without further limitation, an element defined by the phrase "comprising..." does not exclude the presence of other identical elements in the article or device that includes said element.

[0066] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0067] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if these modifications and variations fall within the scope of the claims of this application and their equivalents, the intent of this application also includes these modifications and variations.

Claims

1. A magnetic yoke fixing assembly of a magnetic levitation motor stator, characterized in that, Includes a magnetic yoke fixing seat (201) and a magnetic yoke fixing structure (203); The magnetic yoke fixing base (201) has an installation through groove (2013) and a snap-fit ​​platform (2018). The magnetic yoke (202) to be fixed is inserted into the mounting slot (2013) and engaged with the locking platform (2018); The magnetic yoke fixing structure (203) covers the top of the magnetic yoke (202) and is fixedly connected to the magnetic yoke fixing seat (201).

2. The magnet yoke fixation assembly of the magnetic levitation motor stator according to claim 1, characterized in that, The magnetic yoke fixing structure (203) includes multiple magnetic yoke fixing units, each of which fixes a magnetic yoke (202).

3. The magnet yoke fixation assembly of the magnetic levitation motor stator according to claim 2, characterized in that, The magnetic yoke fixing unit includes a fixing part (2032) and a mounting part (2031), with the mounting part (2031) connected to both ends of the fixing part (2032); the fixing part (2032) and the mounting part (2031) are integrally formed.

4. The magnet yoke fixation assembly of the magnetic levitation motor stator according to claim 3, characterized in that, The mounting part (2031) extends toward the axis, and a snap-fit ​​groove (2033) is formed between the mounting part (2031) and the fixing part (2032), and the magnetic yoke (202) engages with the snap-fit ​​groove (2033).

5. The magnet yoke fixation assembly of the magnetic levitation motor stator according to claim 1, characterized in that, The magnetic yoke fixing structure (203) is ring-shaped and can fix multiple magnetic yokes (202) at the same time.

6. The magnet yoke fixation assembly of the magnetic levitation motor stator according to any one of claims 1 to 5, characterized in that, The magnetic yoke fixing structure (203) is made of non-magnetic material.

7. The magnet yoke fixation assembly of the magnetic levitation motor stator according to claim 1, characterized in that, There are multiple mounting slots (2013), and the multiple mounting slots (2013) are evenly distributed in the circumferential direction.

8. The magnet yoke fixation assembly of the magnetic levitation motor stator according to claim 1, characterized in that, The mounting channel (2013) is surrounded by a glue-filling channel (211) that extends in the same direction as and is connected to the mounting channel (2013).

9. The magnet yoke fixation assembly of the magnetic levitation motor stator according to claim 1, characterized in that, The magnetic yoke fixing seat (201) includes a first fixing seat (2011) and a second fixing seat (2012) disposed on the top surface of the first fixing seat (2011); a third top surface (2014) is formed on the top of the second fixing seat (2012), and a fourth top surface (2015) is formed by the inward concavity of the outer periphery of the third top surface (2014).

10. The magnet yoke fixation assembly of the magnetic levitation motor stator according to claim 9, characterized in that, Between every two mounting slots (2013), the outer periphery of the second fixing seat (2012) is recessed in the radial direction to form a sensor mounting slot (2016); a sensor mounting hole (2017) extending in the radial direction and penetrating the second fixing seat (2012) is formed on the inner wall surface of the sensor mounting slot (2016).

11. A stator characterized by, It includes a magnetic yoke fixing assembly, a magnetic yoke (202), a coil assembly (204), a sensor (205), a circuit board (206), a second magnetic yoke (207), a fixing plate (208), and a connecting support structure (210) for a magnetic levitation motor stator as described in any one of claims 1 to 10. One end of the magnetic yoke (202) is inserted into the magnetic yoke fixing assembly and fixed, and the other end extends into the magnetic yoke mounting hole (2071) of the second magnetic yoke (207); the circuit board (206) is disposed below the magnetic yoke fixing seat (201); the sensor (205) is disposed on the magnetic yoke fixing seat (201); The coil assembly (204) is sleeved on the magnetic yoke (202) and located between the magnetic yoke fixing seat (201) and the second magnetic yoke (207); the fixing plate (208) is disposed at the bottom of the second magnetic yoke (207); one end of the connecting support structure (210) is inserted into the second magnetic yoke (207) and connected to the fixing plate (208), and the other end is connected to the magnetic yoke fixing seat (201).

12. The stator of claim 11, wherein, The magnetic yoke (202) includes a radially arranged first segment (2021) and a second segment (2022) extending axially from one end of the first segment (2021); a first top surface (2021A) is formed on the top of the first segment (2021), and a second top surface (2021B) is formed by the inward concavity of the periphery of the first top surface (2021A).

13. The stator of claim 12, characterized in that, The end face of the second segment (2022) of the magnetic yoke (202) facing the axis is an arc surface (2021C).

14. The stator of claim 11, wherein, The second magnetic yoke (207) has a plurality of cut-off through slots (2072), which are connected to the magnetic yoke mounting holes (2071).

15. A magnetic levitation motor, characterized by, Includes a stator (20) as described in any one of claims 11 to 14 and a motor housing (10), wherein the stator (20) is disposed within the motor housing (10).

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