A rotor

Abstract

The application discloses a rotor, and the rotor provided by the application is characterized in that single and double reinforcing ribs are alternately arranged, so that the mechanical strength of the blade area is ensured, and the magnetic resistance effect is reduced through the slender reinforcing ribs, thereby reducing the magnetic leakage phenomenon. Through optimization of the reinforcing rib layout, the mechanical strength is ensured, the magnetic performance is improved, the motor provided with the rotor can be applied to a high-speed running scene, the power density and running stability of the motor are improved, and the practicability of the rotor is improved.

Description

Technical Field

[0001] This application relates to the field of permanent magnet motor technology, and in particular to a rotor. Background Technology

[0002] Spoke-type (straight-line) permanent magnet motors utilize a tangential magnetization structure to achieve a localized magnetization effect, effectively improving the air gap magnetic flux density. However, while pursuing magnetic performance, this structure severely sacrifices the mechanical reliability of the rotor. The slots in the rotor core for embedding permanent magnets make critical load-bearing components (such as magnetic bridges) very weak, resulting in insufficient overall structural strength and difficulty in withstanding centrifugal forces at high speeds, thus limiting its reliable application in high-speed applications.

[0003] Furthermore, this motor suffers from inherent defects such as significant magnetic leakage and poor torque performance. A large amount of magnetic flux fails to participate in effective energy conversion, resulting in magnetic leakage, which reduces magnet utilization and power density, affecting control accuracy and stability. Due to these dual limitations in strength and performance, existing Spoke-type motors are mostly used in low-to-medium speed, low-performance applications. Therefore, innovative design of the rotor lamination shape to overcome these challenges has become crucial for enhancing the competitiveness of this model. Utility Model Content

[0004] To solve the above-mentioned technical problems, this application provides a rotor, including a plurality of rotor laminations stacked sequentially, wherein each rotor lamination includes a fixed ring and a plurality of blades, and each blade is connected to the fixed ring;

[0005] The plurality of blades includes a plurality of first blades and a plurality of second blades, wherein the first blades and the second blades are arranged sequentially at intervals along the outer circumference of the fixed ring;

[0006] Each of the first blades is connected to the fixing ring via a first reinforcing rib, the first reinforcing rib extending radially along the first blade and located at the middle of the inner surface of the first blade; each of the second blades is connected to the fixing ring via a second reinforcing rib and a third reinforcing rib, the second reinforcing rib and the third reinforcing rib extending radially along the second blade and located at opposite ends of the inner surface of the second blade.

[0007] The width of the first reinforcing rib is greater than the sum of the widths of the second and third reinforcing ribs.

[0008] Both the first blade and the second blade are fan-shaped and are concentrically arranged, and the first blade and the second blade have the same shape.

[0009] An accommodating space for accommodating a magnet is formed between any two adjacent first and second blades.

[0010] The first blade on the rotor lamination and the second blade on the adjacent stacked rotor lamination are spaced apart along the axial direction of the rotor.

[0011] The plurality of rotor laminations includes a plurality of first laminations and a plurality of second laminations, wherein the plurality of first laminations are stacked along the axial direction of the rotor, and the second laminations are stacked at least on the upper and lower sides of the plurality of first laminations along the axial direction of the rotor.

[0012] Wherein, the outer end of the blade on the second lamination is connected to the outer end of the adjacent blade.

[0013] Wherein, the first surface of the blade of the rotor lamination is provided with a fixing groove, and the second surface of the blade of the rotor lamination is provided with a protrusion. The first surface and the second surface are two opposing surfaces of the blade, and the fixing groove is provided corresponding to the protrusion.

[0014] When the plurality of rotor laminations are stacked, the protrusions on the blades of the rotor laminations are located in the fixing grooves on the blades of the adjacent rotor laminations.

[0015] The fixed ring is provided with a plurality of first abutting members, which are arranged sequentially at intervals along the outer circumference of the fixed ring, and each first abutting member is located between any adjacent first blade and second blade.

[0016] The first lamination has a second abutment, which is located at the end of the blade away from the fixing ring. The second abutment is also located within the accommodating space.

[0017] The second lamination is provided with a third abutment, which is located at the connection between two adjacent blades on the second lamination and is located within the accommodating space.

[0018] The rotor also includes multiple magnets, which are respectively disposed in corresponding accommodating spaces, and any two adjacent magnets have opposite magnetic poles.

[0019] The beneficial effects of this application are as follows: Unlike the prior art, the rotor provided in this application includes multiple rotor laminations stacked sequentially. Each rotor lamination includes a fixed ring and multiple blades, with each blade connected to the fixed ring. The multiple blades include multiple first blades and multiple second blades, which are sequentially spaced along the outer ring of the fixed ring. Each first blade is connected to the fixed ring via a first reinforcing rib, which extends radially along the first blade and is located at the center of its inner surface. Each second blade is connected to the fixed ring via second and third reinforcing ribs, which extend radially along the second blade and are located at opposite ends of its inner surface. In the rotor provided in this application, the alternating arrangement of single and double reinforcing ribs ensures the mechanical strength of the blade area while reducing magnetic reluctance through the slender reinforcing ribs, thereby reducing magnetic leakage. By optimizing the reinforcing rib layout, the magnetic properties are improved while maintaining mechanical strength, making the motor equipped with the rotor provided in this application suitable for high-speed operation scenarios, increasing the motor's power density and operational stability, and enhancing the rotor's practicality. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] in:

[0022] Figure 1 This is a schematic diagram of the structure of the first embodiment of the rotor of this application;

[0023] Figure 2 This is a schematic diagram of the structure of an embodiment of the rotor lamination of this application;

[0024] Figure 3 yes Figure 1 A schematic diagram of the central rotor from another perspective;

[0025] Figure 4 This is a schematic diagram of another embodiment of the rotor lamination of this application;

[0026] Figure 5 This is a schematic diagram of the structure of the second embodiment of the rotor of this application;

[0027] Figure 6 This is a schematic diagram of the structure of the third embodiment of the rotor in this application;

[0028] Figure 7 This is a partial structural schematic diagram of an embodiment of the first lamination of this application;

[0029] Figure 8 This is a partial structural schematic diagram of an embodiment of the second lamination of this application.

[0030] Reference numerals in the attached figures: 1. Rotor; 11. Rotor lamination; 111. Fixing ring; 1111. First abutment; 112. First blade; 113. Second blade; 114. First reinforcing rib; 115. Second reinforcing rib; 116. Third reinforcing rib; 12. First lamination; 121. Second abutment; 13. Second lamination; 131. Third abutment. Detailed Implementation

[0031] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0032] In the following description, specific details such as particular system architectures, interfaces, and technologies are presented for illustrative purposes rather than for limiting purposes, in order to provide a thorough understanding of this application.

[0033] In this application, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0034] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A alone, A and B simultaneously, and B alone. Additionally, the character " / " generally indicates that the preceding and following related objects are in an "or" relationship. Furthermore, "many" in this application means two or more. Moreover, the term "at least one" in this application means any combination of at least two of any one or more of a plurality of objects. For example, including at least one of A, B, and C can mean including any one or more elements selected from the set consisting of A, B, and C. Furthermore, the terms "first," "second," and "third" in this application are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features.

[0035] Please see Figure 1 and Figure 2 The rotor 1 provided in this application embodiment includes a plurality of rotor laminations 11 stacked sequentially, wherein each rotor lamination 11 includes a fixed ring 111 and a plurality of blades, and each blade is connected to the fixed ring 111.

[0036] Specifically, the multiple blades include multiple first blades 112 and multiple second blades 113, which are arranged sequentially at intervals along the outer circumference of the fixing ring 111. Each first blade 112 is connected to the fixing ring 111 by a first reinforcing rib 114, which extends radially along the first blade 112 and is located at the center of the inner surface of the first blade 112. Each second blade 113 is connected to the fixing ring 111 by a second reinforcing rib 115 and a third reinforcing rib 116, which extend radially along the second blade 113 and are located at opposite ends of the inner surface of the second blade 113.

[0037] Among them, such as Figure 2 In this embodiment, the first blade 112 and the second blade 113 are alternately distributed on the fixing ring 111 of the rotor lamination 11. The first blade 112 is connected to the fixing ring 111 via a first reinforcing rib 114, and the second blade 113 is connected to the fixing ring 111 via a second reinforcing rib 115 and a third reinforcing rib 116. That is, single and double reinforcing ribs are alternately arranged to connect to the blades. In one embodiment, the second reinforcing rib 115 and the third reinforcing rib 116 can be reinforcing ribs of the same specification.

[0038] This embodiment, by alternating between single and double reinforcing ribs, ensures the mechanical strength of the blade area while reducing magnetic resistance through slender reinforcing ribs, thereby reducing magnetic leakage. It improves magnetic properties while ensuring mechanical strength, thus enhancing the practicality of rotor 1.

[0039] Optionally, the width of the first reinforcing rib 114 is greater than the sum of the widths of the second reinforcing rib 115 and the third reinforcing rib 116.

[0040] Specifically, in this embodiment, the width of the first reinforcing rib 114 is designed to be greater than the sum of the widths of the second reinforcing rib 115 and the third reinforcing rib 116. This design aims to enhance the local structural strength while ensuring the magnetic circuit conduction efficiency by adjusting the size ratio of the reinforcing ribs at different positions.

[0041] In this embodiment, by setting the width of the first reinforcing rib 114 to exceed the sum of the widths of the second reinforcing rib 115 and the third reinforcing rib 116, the overall strength of the rotor 1 can be improved while reducing magnetic leakage. The wider rib structure enhances the local resistance to deformation, making the rotor 1 more adaptable to high-speed operating conditions, reducing the risk of deformation caused by centrifugal force, optimizing the magnetic flux path distribution, reducing cogging force and torque fluctuation, and improving the practicality of the rotor 1.

[0042] Optionally, both the first blade 112 and the second blade 113 are fan-shaped and are concentrically arranged, with the first blade 112 and the second blade 113 having the same shape; an accommodating space for accommodating a magnet is formed between any adjacent first blade 112 and second blade 113.

[0043] The first blade 112 and the second blade 113 both have a fan-shaped annular structure, arranged in the same shape along the same central axis. The first blade 112 and the second blade 113 form independent spaces through staggered distribution, which are used to embed magnets. The fan-shaped annular design of the first blade 112 and the second blade 113 ensures that the installation position of the magnet is adapted to the blade structure, and the concentric arrangement ensures that the magnet maintains a stable magnetic field distribution during rotation. The uniformity of the blade shape ensures the balance of structural forces, while the space between adjacent first blades 112 and second blades 113 satisfies the magnet installation requirements while avoiding mutual interference between adjacent blade structures. Furthermore, the fan-shaped annular design of the first blade 112 and the second blade 113, through optimization of the blade's curvature, further reduces cogging force and torque fluctuations.

[0044] This embodiment utilizes a fan-shaped annular structure design for the first blade 112 and the second blade 113 to create a synergistic effect between the magnet mounting position and the blade support structure, thereby enhancing the overall mechanical strength of the rotor 1. The concentrically positioned first blade 112 and second blade 113 generate a symmetrical magnetic field distribution during rotation, effectively reducing cogging force and torque fluctuations. The space between adjacent first blades 112 and second blades 113 not only provides precise magnet positioning but also reduces magnetic circuit coupling losses through structural separation, thus minimizing magnetic leakage. This design optimizes magnetic performance while ensuring structural strength, enabling the motor to adapt to higher speed conditions, while simplifying the magnet mounting process and improving the practicality of the rotor 1.

[0045] Optionally, in the plurality of rotor laminations 11 stacked sequentially, the first blade 112 on the rotor lamination 11 and the second blade 113 on the adjacent rotor laminations 11 are spaced apart along the axial direction of the rotor 1.

[0046] For details, please continue reading. Figure 3 This spacing is achieved by offsetting the first blade 112 and the second blade 113 of different rotor laminations 11 along the axial direction. During stacking, the rotor laminations 11 are rotated by a specific angle relative to adjacent rotor laminations 11, causing the first blade 112 and the second blade 113 of adjacent rotor laminations to be offset. This results in the blades with single or double reinforcing ribs being alternately distributed axially, enhancing the mechanical strength of the rotor 1. In one embodiment, the specific angle of rotation of the rotor laminations 11 can be 360 / P°, where P is the number of magnets.

[0047] In this embodiment, by setting the first blade 112 and the second blade 113 to be spaced apart along the axial direction of the rotor 1, the stress points of the first blade 112 and the second blade 113 in the axial direction are dispersed, thereby enhancing the overall structural strength of the rotor 1 and enabling it to withstand the centrifugal force brought about by higher rotational speeds. Furthermore, the spaced structure effectively disrupts the continuity of the magnetic circuit, reducing the direct coupling of magnetic flux in the axial direction, thus reducing magnetic leakage.

[0048] Optionally, please refer to Figure 1 , Figure 2 and Figure 4 The rotor 1 has a plurality of rotor laminations 11 stacked sequentially, including a plurality of first laminations 12 and second laminations 13. The plurality of first laminations 12 are stacked along the axial direction of the rotor 1, and the second laminations 13 are stacked at least on the upper and lower sides of the plurality of first laminations 12 along the axial direction of the rotor 1.

[0049] in, Figure 2 This can be a structural schematic diagram of the first lamination 12. Figure 4 This can be a schematic diagram of the structure of the second lamination 13. Compared with the structure of the first lamination 12, the outer end of the blade on the second lamination 13 is connected to the outer end of the adjacent blade to form a continuous structure, thereby enhancing the stability between adjacent blades.

[0050] Furthermore, since the second lamination 13 is stacked on the upper and lower sides of the plurality of first laminations 12 along the axial direction of the rotor 1, the structural strength of the rotor 1 is optimized.

[0051] In one embodiment, such as Figure 5 and Figure 6 As shown, the second lamination 13 can also be disposed between the stacked first laminations 12. This application does not limit the specific number of the first laminations 12 and the second laminations 13. As long as the second laminations 13 are disposed at least on the upper and lower sides of the stacked first laminations 12, the specific placement of the remaining second laminations 13 is not specifically limited, so as to form a rotor 1 containing a number of rotor laminations 11 to meet the actual needs of users.

[0052] This embodiment effectively improves the overall rigidity of the rotor 1 and reduces the risk of deformation during high-speed operation by connecting the outer end of the blade of the second lamination 13 to the adjacent blade to form a continuous structure. Furthermore, the hybrid stacking design of the first lamination 12 and the second lamination 13 increases the material thickness of key parts, thereby improving the structural strength without significantly increasing the weight and enhancing the practicality of the rotor 1.

[0053] Optionally, the first surface of the blade of the rotor lamination 11 is provided with a fixing groove (not shown), and the second surface of the blade of the rotor lamination 11 is provided with a protrusion (not shown). The first surface and the second surface are two opposing surfaces of the blade, and the fixing groove and the protrusion are provided correspondingly.

[0054] Furthermore, when multiple rotor laminations 11 are stacked, the protrusions on the blades of the rotor laminations 11 are located in the fixed grooves on the blades of adjacent rotor laminations 11.

[0055] Specifically, the fixing groove and the protrusion can be respectively set on the first surface and the second surface of the same blade. Then, during the process of stacking rotor laminations 11 to form rotor 1, the protrusion on the blade of rotor lamination 11 will be embedded in the fixing groove on the blade of adjacent rotor lamination 11, so as to realize the positioning between blades and improve the stability of rotor laminations 11 when stacked.

[0056] In one embodiment, the fixing groove and the protrusion can be alternately disposed on the blade. For example, the fixing groove is disposed on the first surface of the first blade 112, and the protrusion is disposed on the second surface of the second blade 113. Then, when the rotor laminations 11 are stacked, as is known above, the first blade 112 on the rotor laminations 11 and the second blade 113 on the adjacent rotor laminations 11 are spaced apart along the axial direction of the rotor 1. Therefore, the fixing groove on the first blade 112 will cooperate with the protrusion on the second blade 113 to achieve the stability of the rotor laminations 11 when stacked.

[0057] In another embodiment, a fixing groove may be provided on the first surface of the second blade 113, and a protrusion may be provided on the second surface of the first blade 112. Thus, when the rotor laminations 11 are stacked, the protrusion on the first blade 112 will be embedded in the fixing groove on the second blade 113, thereby achieving stability when the rotor laminations 11 are stacked.

[0058] In this embodiment, the fitting structure of the fixed groove and the protrusion makes the positioning between the blades more precise during stacking, effectively improving the overall structural stability of the rotor 1 and thus enhancing its mechanical strength during high-speed operation. At the same time, the connection structure formed by the protrusion embedded in the fixed groove can disperse stress concentration, reduce the risk of deformation caused by vibration or centrifugal force, and improve the practicality of the rotor 1.

[0059] Optionally, please refer back to the previous section. Figure 2 A plurality of first abutting members 1111 are provided on the fixed ring 111. The plurality of first abutting members 1111 are arranged sequentially at intervals along the outer circumference of the fixed ring 111, and each first abutting member 1111 is located between any adjacent first blade 112 and second blade 113.

[0060] The first abutting member 1111 can extend outward in a radial direction relative to the central axis of the fixed ring 111. As is known from the previous text, a receiving space for accommodating the magnet is formed between the first blade 112 and the second blade 113. The first abutting member 1111 is disposed between the first blade 112 and the second blade 113, which can abut against the magnet disposed between the first blade 112 and the second blade 113, restrict the magnet, prevent the magnet from being displaced due to vibration or centrifugal force, and improve the stability of the magnet.

[0061] In this embodiment, by setting the first abutting member 1111, the magnet disposed between the first blade 112 and the second blade 113 can be abutted, ensuring the stability of the magnet installation and improving the practicality of the rotor 1.

[0062] Optionally, please refer to Figure 7 The first punch 12 is provided with a second abutment 121, which is located at the end of the blade away from the fixed ring 111 and is located within the accommodating space.

[0063] The second abutting member 121 can abut against the magnet disposed in the accommodating space. Specifically, the first abutting member 1111 abuts against the first end of the magnet, and the second abutting member 121 abuts against the second end of the magnet. The first end and the second end of the magnet are the two opposite ends of the magnet, thereby fixing the magnet in the accommodating space, preventing the magnet from being displaced due to vibration or centrifugal force, improving the stability of the magnet and improving the practicality of the rotor 1.

[0064] Optionally, please refer to Figure 8 The second punch 13 is provided with a third abutment 131, which is located at the connection between two adjacent blades on the second punch 13 and is located within the accommodating space.

[0065] The third abutment 131 can extend inward along the radial direction of the central axis of the fixed ring 111. That is, the extension direction of the first abutment 1111 located in the same accommodating space is parallel to the extension direction of the third abutment 131. Thus, the third abutment 131 can abut against the second end of the magnet disposed in the accommodating space, while the first abutment 1111 abuts against the first end of the magnet, thereby fixing the magnet and preventing the magnet from being displaced due to vibration or centrifugal force, improving the stability of the magnet and the practicality of the rotor 1.

[0066] In summary, by providing a second abutment 121 on the first lamination 12 and / or a third abutment 131 on the second lamination 13, a synergistic effect can be achieved with the magnet fixing structure, improving the reliability of magnet installation and reducing magnetic leakage. Furthermore, it effectively disperses the centrifugal force borne by the blades, preventing blade deformation during high-speed operation. This contributes to enhancing the overall mechanical stability of the rotor 1 and reducing vibration and noise caused by structural weakness. While ensuring structural strength, it also optimizes the mechanical distribution of the rotor 1, helping to reduce cogging force and torque fluctuations, enabling the motor to maintain a more stable operating state under high-speed conditions.

[0067] Optionally, the rotor 1 also includes a plurality of magnets (not shown), each of which is disposed in a corresponding accommodating space, and any two adjacent magnets have opposite magnetic poles.

[0068] In this arrangement, the magnetic poles of adjacent magnets are in opposite directions; that is, the N pole of one magnet is opposite the S pole of the adjacent magnet. This alternating arrangement of magnetic poles can be achieved by adjusting the physical position of the magnets, for example, by embedding magnets in the slots of the rotor laminations 11 in order of polarity. The magnets can be regular or irregular protruding structures to facilitate matching with the slots when the rotor laminations 11 are stacked. Alternatively, a combination of separate magnets can be used, and the alternating magnetic poles can be achieved by adjusting the arrangement angle or number of magnets.

[0069] In this embodiment, the opposite arrangement of magnetic poles can effectively cancel the magnetic flux interference between adjacent magnets, thereby reducing magnetic leakage during rotor 1 operation, making the magnetic circuit more balanced, reducing cogging torque fluctuations, and improving the smoothness of rotor 1 operation. At the same time, the magnetic field distribution generated by the alternating magnetic poles is more uniform, which helps to improve the output torque density of the motor equipped with the rotor 1 provided in this application, and improves the practicality of rotor 1.

[0070] In summary, the rotor 1 provided in this application, through the alternating arrangement of single and double reinforcing ribs, ensures both the mechanical strength of the blade area and reduces magnetic reluctance through slender reinforcing ribs, thereby reducing magnetic leakage. The hybrid stacking design of the first lamination 12 and the second lamination 13 results in a more uniform stress distribution, and the combination of the fixing groove and protruding snap-fit ​​structure enhances the overall structural rigidity, enabling it to withstand higher centrifugal forces. Furthermore, the optimized blade arc shape effectively weakens cogging forces and reduces torque fluctuations. The protruding structure within the magnet slot improves the magnet positioning accuracy and enhances magnetic circuit coupling efficiency. This design improves magnetic performance while ensuring mechanical strength, making the rotor 1 suitable for motors operating at high speeds, while also improving the motor's power density and operational stability. By optimizing the reinforcing rib layout and the combination of rotor laminations 11, a balance between structural strength and electromagnetic performance is achieved, solving the reliability issues of traditional Spoke-type motors in high-speed applications.

[0071] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A rotor, characterized in that, It includes multiple rotor laminations stacked sequentially, wherein each rotor lamination includes a fixed ring and multiple blades, and each blade is connected to the fixed ring; The plurality of blades includes a plurality of first blades and a plurality of second blades, wherein the first blades and the second blades are arranged sequentially at intervals along the outer circumference of the fixed ring; Each of the first blades is connected to the fixing ring via a first reinforcing rib, the first reinforcing rib extending radially along the first blade and located at the middle of the inner surface of the first blade; each of the second blades is connected to the fixing ring via a second reinforcing rib and a third reinforcing rib, the second reinforcing rib and the third reinforcing rib extending radially along the second blade and located at opposite ends of the inner surface of the second blade.

2. The rotor according to claim 1, characterized in that, The width of the first reinforcing rib is greater than the sum of the widths of the second and third reinforcing ribs.

3. The rotor according to claim 1, characterized in that, Both the first blade and the second blade are fan-shaped and are concentrically arranged, and the first blade and the second blade have the same shape; An accommodating space for accommodating a magnet is formed between any two adjacent first and second blades.

4. The rotor according to claim 1, characterized in that, The first blade on the rotor lamination and the second blade on the stacked adjacent rotor lamination are spaced apart along the axial direction of the rotor.

5. The rotor according to claim 3, characterized in that, The plurality of rotor laminations include a plurality of first laminations and a plurality of second laminations, the plurality of first laminations being stacked along the axial direction of the rotor, and the second laminations being stacked at least above and below the plurality of first laminations along the axial direction of the rotor. Wherein, the outer end of the blade on the second lamination is connected to the outer end of the adjacent blade.

6. The rotor according to claim 1, characterized in that, The first surface of the blade of the rotor lamination is provided with a fixing groove, and the second surface of the blade of the rotor lamination is provided with a protrusion. The first surface and the second surface are two opposing surfaces of the blade, and the fixing groove is provided corresponding to the protrusion. When the plurality of rotor laminations are stacked, the protrusions on the blades of the rotor laminations are located in the fixing grooves on the blades of the adjacent rotor laminations.

7. The rotor according to claim 1, characterized in that, The fixed ring is provided with a plurality of first abutting members, which are arranged sequentially at intervals along the outer circumference of the fixed ring, and each first abutting member is located between any adjacent first blade and second blade.

8. The rotor according to claim 5, characterized in that, The first lamination is provided with a second abutment, which is located at the end of the blade away from the fixed ring and is located within the accommodating space.

9. The rotor according to claim 5, characterized in that, The second lamination is provided with a third abutment, which is located at the connection between two adjacent blades on the second lamination and is located within the accommodating space.

10. The rotor according to claim 3, characterized in that, The rotor also includes multiple magnets, which are respectively disposed in corresponding accommodating spaces, and any two adjacent magnets have opposite magnetic poles.

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