Rotor structure, motor and vehicle

Abstract

The invention discloses a rotor structure, a motor and a vehicle. The rotor structure comprises an amorphous alloy rotor iron core and a crystal iron core. The crystal iron cores are arranged on the two sides of the amorphous alloy rotor iron core, and the crystal iron cores are connected with the amorphous alloy rotor iron core. By arranging the crystal iron cores on the two sides of the amorphous alloy rotor iron core, the amorphous alloy rotor iron core can be protected, the amorphous alloy rotor iron core is prevented from being scratched by other structural parts, the crystal iron cores can prevent the amorphous alloy rotor iron core from tilting or cracking in the punching and transporting process of the rotor structure, the structural strength of the rotor structure is improved, and the service life of the rotor structure is prolonged. The protection of the amorphous alloy rotor structure is increased, the reliability of the rotor structure is improved, and the service life of the rotor structure is effectively prolonged. Meanwhile, as the crystal iron core is arranged on the outer side of the amorphous alloy rotor iron core, traceability and the like can be facilitated by performing information marking on the crystal iron core, so that the problem that information cannot be marked on the amorphous alloy rotor iron core is solved.

Description

Technical Field

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

[0002] In the prior art, the rotor structure is composed of a stack of crystal iron cores and a stack of amorphous rotor iron cores. The amorphous alloy rotor core structure has low structural strength, and the amorphous alloy rotor core structure on both sides of the stack is prone to deformation and warping, or cracks, which cannot meet the higher structural strength requirements of the motor rotor, and the reliability of the motor is low. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one object of the present invention is to provide a rotor structure that can improve the reliability of the rotor structure.

[0004] A second object of the present invention is to provide an electric motor, comprising a rotor structure as described in any one of the embodiments of the first aspect above.

[0005] The third object of the present invention is to provide a vehicle, comprising the rotor structure described in any one of the embodiments of the first aspect above, or the motor described in the embodiments of the second aspect above.

[0006] According to the rotor structure of the first aspect of the present invention, the rotor structure includes: an amorphous alloy rotor core and a crystal core, the crystal core is arranged on both sides of the amorphous alloy rotor core, and the crystal core is connected to the amorphous alloy rotor core.

[0007] According to the rotor structure of the embodiment of the present invention, by arranging the crystal core on both sides of the amorphous alloy rotor core, the amorphous alloy rotor core can be protected and prevented from being scratched by other structural parts. During the stamping and transportation of the rotor structure, the crystal core can prevent the amorphous alloy rotor core from warping or cracking, thereby improving the structural strength of the rotor structure, increasing the protection of the amorphous alloy rotor structure, improving the reliability of the rotor structure, and effectively extending the service life of the rotor structure. At the same time, since the crystal core is arranged on the outside of the amorphous alloy rotor core, information marking on the crystal core can be used to facilitate traceability, etc., to solve the problem that information cannot be marked on the amorphous alloy rotor core.

[0008] In some embodiments, the crystalline iron core is a silicon steel core.

[0009] In some embodiments, a first groove is formed on the crystalline core; a second groove is formed on the amorphous alloy rotor core, and the first groove and the second groove are at least partially opposite to each other along the thickness direction of the rotor structure.

[0010] In some embodiments, the first groove includes a first mounting groove and a first magnetic isolation groove, and the first magnetic isolation groove is arranged at both ends of the first mounting groove; the second groove includes a second mounting groove and a second magnetic isolation groove, the first mounting groove and the second mounting groove are opposite to each other along the thickness direction of the rotor structure, the second magnetic isolation groove is arranged at both ends of the second mounting groove, and the width of the first mounting groove is greater than or equal to the width of the second mounting groove.

[0011] In some embodiments, a projection of the second mounting groove in the stacking direction of the amorphous alloy rotor core and the crystalline core is located within a projection of the first mounting groove in the stacking direction of the amorphous alloy rotor core and the crystalline core.

[0012] In some embodiments, the rotor structure further includes: a magnet, which is disposed in the first mounting slot and the second mounting slot, and the magnet is gap-matched with at least part of the side wall of the first mounting slot; the magnet is gap-matched with at least part of the side wall of the second mounting slot.

[0013] In some embodiments, the distance between the magnet and the corresponding side wall of the first mounting groove is L1; the distance between the magnet and the corresponding side wall of the second mounting groove is L2, and L1 and L2 satisfy: L1≥L2.

[0014] In some embodiments, a first magnetic flow groove is formed at the connection between the first mounting groove and the first magnetic isolation groove, and the first magnetic flow groove is formed on a side of the first magnetic isolation groove adjacent to the center of the rotor structure along the radial direction of the rotor structure; a second magnetic flow groove is formed at the connection between the second mounting groove and the second magnetic isolation groove, and the second magnetic flow groove is formed on a side of the second magnetic isolation groove adjacent to the center of the rotor structure along the radial direction of the rotor structure, and along the radial direction of the rotor structure, a side wall of the first magnetic flow groove adjacent to the center of the rotor structure is arranged on a side of the second magnetic flow groove adjacent to the center of the rotor structure facing the center of the rotor structure.

[0015] In some embodiments, there are multiple first grooves, and the multiple first grooves are arranged at intervals along the circumference of the rotor structure, and the distance between two adjacent first grooves tends to increase along the radial direction of the rotor structure; there are multiple second grooves, and the multiple second grooves are arranged at intervals along the circumference of the rotor structure, and the distance between two adjacent second grooves tends to increase along the radial direction of the rotor structure.

[0016] In some embodiments, the rotor structure further includes: an adhesive member, wherein the adhesive member is disposed between the amorphous alloy rotor core and the crystalline core, and the adhesive member is disposed on at least one of the amorphous alloy rotor core and the crystalline core.

[0017] In some embodiments, the rotor structure is formed with a plurality of weight-reducing holes, which are arranged at intervals along the circumference of the rotor structure and penetrate the amorphous alloy rotor core and the crystal core along the thickness direction of the rotor structure.

[0018] In some embodiments, the rotor structure is formed with an axial hole, and the axial hole penetrates the amorphous alloy rotor core and the crystalline core along the thickness direction of the rotor structure.

[0019] In some embodiments, a positioning portion is provided on a side wall of the shaft hole, and the positioning portion extends along the axial direction of the rotor structure.

[0020] In some embodiments, there are a plurality of positioning portions, and the plurality of positioning portions are opposite to each other along the radial direction of the rotor structure.

[0021] The motor according to the second aspect of the present invention comprises the rotor structure described in any one of the embodiments of the first aspect.

[0022] The vehicle according to the third aspect of the present invention comprises the rotor structure described in any one of the first aspect embodiments, or the motor described in the second aspect embodiments.

[0023] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which: Figure 1 is a partial schematic diagram of a viewing angle of an embodiment of the first aspect of the present invention; Figure 2 yes Figure 1 Enlarged schematic diagram of the middle P region; Figure 3 yes Figure 1 Enlarged schematic diagram of the middle Q region; Figure 4 It is a schematic diagram of another viewing angle of the embodiment of the first aspect of the present invention.

[0025] Reference numerals: 100. Rotor structure; 10. amorphous alloy rotor core; 11. second groove; 111. second mounting groove; 112. second magnetic isolation groove; 12. second magnetic flow groove; 20, crystal core; 21, first groove; 211, first mounting groove; 212, first magnetic isolation groove; 22, first magnetic flow groove; 30. Weight-reducing hole; 31. Shaft hole; 311. Positioning portion. DETAILED DESCRIPTION

[0026] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. Figure 1-Figure 4 The rotor structure 100 according to the embodiment of the present invention is described. The rotor structure 100 includes an amorphous alloy rotor core 10 and a crystalline core 20 .

[0027] Specifically, if Figure 1 As shown, the crystalline core 20 is disposed on both sides of the amorphous alloy rotor core 10 , and the crystalline core 20 is connected to the amorphous alloy rotor core 10 .

[0028] That is, the crystal core 20 is respectively connected to the two sides of the amorphous alloy rotor core 10 along the thickness direction of the rotor structure 100, and the crystal core 20 is adapted to the shape of the amorphous alloy rotor core 10, wherein the amorphous alloy rotor core 10 is suitable for fixing the magnet and providing a magnetic flux path, and the crystal core 20 is suitable for protecting the amorphous alloy rotor core 10. In this embodiment, the structure of the crystal core 20 can be adjusted according to the structure of different amorphous alloy rotor cores 10, and the crystal core 20 can be made of ordinary silicon steel sheets, high-strength silicon steel sheets or ultra-thin silicon steel sheets. Among them, a plurality of stacked amorphous alloy rotor cores 10 are arranged between two adjacent crystal cores 20. In this embodiment, the crystal core 20 is a silicon steel core.

[0029] According to the rotor structure 100 of the embodiment of the present invention, by arranging the crystal core 20 on both sides of the amorphous alloy rotor core 10, the amorphous alloy rotor core 10 can be protected and prevented from being scratched by other structural parts. During the stamping and transportation of the rotor structure 100, the crystal core 20 can prevent the amorphous alloy rotor core 10 from warping or cracking, thereby improving the structural strength of the rotor structure 100, increasing the protection of the amorphous alloy rotor structure 100, improving the reliability of the rotor structure 100, and effectively extending the service life of the rotor structure 100. At the same time, since the crystal core 20 is arranged on the outside of the amorphous alloy rotor core 10, information marking can be performed on the crystal core 20 to facilitate traceability, etc., so as to solve the problem that information cannot be marked on the amorphous alloy rotor core 10.

[0030] According to some embodiments of the present invention, Figure 3 As shown, the crystalline core 20 is formed with a first groove 21 ; the amorphous alloy rotor core 10 is formed with a second groove 11 , and the first groove 21 and the second groove 11 are at least partially opposite to each other along the thickness direction of the rotor structure 100 .

[0031] That is, a first groove 21 is formed through the side of the crystal core 20 away from the amorphous alloy rotor core 10 along the thickness direction of the rotor structure 100 toward the side adjacent to the amorphous alloy rotor core 10; a second groove 11 is formed through the side of the amorphous alloy rotor core 10 adjacent to the crystal core 20 along the thickness direction of the rotor structure 100 toward the side away from the crystal core 20, wherein the projection parts of the first groove 21 and the second groove 11 along the thickness direction of the rotor structure 100 on the horizontal projection plane overlap.

[0032] Thus, the first groove 21 and the second groove 11 are at least partially opposite to each other along the thickness direction of the rotor structure 100, which can improve the connection accuracy of the crystalline iron core 20 and the amorphous alloy rotor core 10, provide a guide for the positioning of the crystalline iron core 20 and the amorphous alloy rotor core 10, and provide a larger magnetic flux space to improve the working efficiency of the rotor structure 100. At the same time, it is convenient to limit the magnet in the first groove 21 through the second groove 11.

[0033] According to some embodiments of the present invention, Figure 2 and Figure 4 As shown, the first groove 21 includes a first mounting groove 211 and a first magnetic isolation groove 212, and the first magnetic isolation groove 212 is arranged at both ends of the first mounting groove 211; the second groove 11 includes a second mounting groove 111 and a second magnetic isolation groove 112, the first mounting groove 211 and the second mounting groove 111 are opposite to each other along the thickness direction of the rotor structure 100, the second magnetic isolation groove 112 is arranged at both ends of the second mounting groove 111, and the width of the first mounting groove 211 is greater than or equal to the width of the second mounting groove 111.

[0034] That is, the first magnetic isolation groove 212 is disposed at both ends of the first mounting groove 211 along the length direction of the first mounting groove 211; the second magnetic isolation groove 112 is disposed at both ends of the second mounting groove 111 along the length direction of the second mounting groove 111. The lengths of the first mounting groove 211 and the second mounting groove 111 are greater than the corresponding widths of the first mounting groove 211 and the second mounting groove 111. Among them, the first mounting groove 211 and the second mounting groove 111 are opposite to each other along the thickness direction of the rotor structure 100, and multiple first mounting grooves 211 and multiple second mounting grooves 111 are opposite to each other respectively. Among them, in the first mounting groove 211 and the second mounting groove 111 that are opposite to each other along the thickness direction of the rotor structure 100, the width of the first mounting groove 211 is greater than or equal to the width of the second mounting groove 111, that is, the first mounting groove 211 and the second mounting groove 111 are suitable for installing magnets, and the movable space of the magnet in the first mounting groove 211 is larger than the movable space of the magnet in the second mounting groove 111, which facilitates the second mounting groove 111 set on the amorphous alloy rotor structure 100 to limit the magnet in the first mounting groove 211 and avoid the magnet in the first mounting groove 211 from contacting the side wall of the first mounting groove 211.

[0035] Therefore, the first mounting groove 211 and the second mounting groove 111 are opposite to each other along the thickness direction of the rotor structure 100, the second magnetic isolation groove 112 is arranged at both ends of the second mounting groove 111, and the width of the first mounting groove 211 is greater than or equal to the width of the second mounting groove 111. When the rotor structure 100 is in high-speed centrifugation, the magnet arranged in the first mounting groove 211 can be avoided from contacting the two sides of the first mounting groove 211 along the width direction, thereby avoiding the crystal core 20 from being subjected to the extrusion force of the magnet, extending the service life of the crystal core 20, and improving the reliability of the rotor structure 100.

[0036] According to some embodiments of the present invention, Figure 4 As shown, the projection of the second installation groove 111 in the stacking direction of the amorphous alloy rotor core 10 and the crystalline core 20 is located within the projection of the first installation groove 211 in the stacking direction of the amorphous alloy rotor core 10 and the crystalline core 20 .

[0037] That is, the projection of the second installation groove 111 of the amorphous alloy rotor core 10 along the thickness direction of the rotor structure 100, that is, the stacking direction of the amorphous alloy rotor core 10 and the crystalline core 20, is covered by the projection of the first installation groove 211 of the crystalline core 20 in the stacking direction of the amorphous alloy rotor core 10 and the crystalline core 20. Therefore, the projection of the second installation groove 111 in the stacking direction of the amorphous alloy rotor core 10 and the crystalline core 20 is located within the projection of the first installation groove 211 in the stacking direction of the amorphous alloy rotor core 10 and the crystalline core 20, which can ensure that the cross-sectional area of ​​the first installation groove 211 is greater than or equal to the cross-sectional area of ​​the second installation groove 111, ensure that the magnet cannot contact the two sides of the first installation groove 211 along the width direction, avoid the crystalline core 20 from being squeezed by the magnet, and improve the structural strength and reliability of the crystalline core 20.

[0038] According to some embodiments of the present invention, the rotor structure 100 further includes: a magnet, which is disposed in the first mounting groove 211 and the second mounting groove 111 , and the magnet is gap-matched with at least part of the side wall of the first mounting groove 211 , and the magnet is gap-matched with at least part of the side wall of the second mounting groove 111 .

[0039] That is, the magnet forms a clearance fit with the first installation groove 211 and the second groove 11 along the length direction of the first groove 21 and the second groove 11. The magnet is suitable for generating a magnetic field to make the rotor structure 100 rotate.

[0040] Thus, the magnet is matched with at least part of the side wall gap of the installation groove, and when the rotor structure 100 is in high-speed centrifugation, the magnet can be prevented from squeezing the crystal core 20, effectively improving the structural strength of the crystal core 20, and extending the service life of the crystal core 20 and the amorphous alloy rotor core 10. At the same time, the magnetic field is made to flow away from the first magnetic isolation groove 212 and the second magnetic isolation groove 112, reducing the magnetic leakage coefficient of the rotor structure 100, improving the utilization rate of the magnet, and improving the magnetic isolation effect of the rotor structure 100.

[0041] According to some embodiments of the present invention, the interval between the magnet and the corresponding side wall of the first installation groove 211 is L1; the interval between the magnet and the corresponding side wall of the second installation groove 111 is L2, and L1 and L2 satisfy: L1≥L2.

[0042] In this embodiment, the distance between the magnet and the corresponding side wall of the first mounting groove 211 is greater than or equal to the distance between the magnet and the corresponding side wall of the second mounting groove 111. When the rotor structure 100 rotates at high speed, the second mounting groove 111 can be stopped and limited by the magnet due to its smaller width, thereby preventing the first mounting groove 211 from contacting the magnet and being squeezed by the magnet, thereby improving the safety and stability of the rotor structure 100.

[0043] According to some embodiments of the present invention, Figure 2 and Figure 4 As shown, a first magnetic flow groove 22 is formed at the connection between the first mounting groove 211 and the first magnetic isolation groove 212, and the first magnetic flow groove 22 is formed on a side of the first magnetic isolation groove 212 adjacent to the center of the rotor structure 100 along the radial direction of the rotor structure 100; a second magnetic flow groove 12 is formed at the connection between the second mounting groove 111 and the second magnetic isolation groove 112, and the second magnetic flow groove 12 is formed on a side of the second magnetic isolation groove 112 adjacent to the center of the rotor structure 100 along the radial direction of the rotor structure 100, and along the radial direction of the rotor structure 100, a side wall of the first magnetic flow groove 22 adjacent to the center of the rotor structure 100 is arranged on a side wall of the second magnetic flow groove 12 adjacent to the center of the rotor structure 100 facing the center of the rotor structure 100.

[0044] That is, the first magnetic flow groove 22 is arranged between the first installation groove 211 and the first magnetic isolation groove 212, and the first magnetic flow groove 22 is arranged on the side of the first groove 21 adjacent to the center of the rotor structure 100 along the radial direction of the rotor structure 100; the second magnetic flow groove 12 is arranged between the second installation groove 111 and the second magnetic isolation groove 112, and the second magnetic flow groove 12 is arranged on the side of the second groove 11 adjacent to the center of the rotor structure 100 along the radial direction of the rotor structure 100, wherein the first magnetic flow groove 22 and the second magnetic flow groove 12 are suitable for providing a flow path for the magnetic field, and the first magnetic flow groove 22 and the second magnetic flow groove 12 are aligned along the thickness direction of the rotor center, that is, the stacking direction of the amorphous alloy rotor core 10 and the crystal core 20, and along the radial direction of the rotor structure 100, the side wall of the first magnetic flow groove 22 adjacent to the center of the rotor structure 100 is closer to the center of the rotor structure 100 than the side wall of the second magnetic flow groove 12 adjacent to the center of the rotor structure 100.

[0045] Thus, the first magnetic flow slot 22 is formed along the radial direction of the rotor structure 100 on the side of the first magnetic isolation slot 212 adjacent to the center of the rotor structure 100, and the second magnetic flow slot 12 is formed along the radial direction of the rotor structure 100 on the side of the second magnetic isolation slot 112 adjacent to the center of the rotor structure 100. Along the radial direction of the rotor structure 100, the side wall of the first magnetic flow slot 22 adjacent to the center of the rotor structure 100 is arranged on the side of the side wall of the second magnetic flow slot 12 adjacent to the center of the rotor structure 100 facing the center of the rotor structure 100. The width of the second groove 11 corresponding to the second magnetic flow slot 12 is greater than the width of the first groove 21 corresponding to the first magnetic flow slot 22, thereby increasing the magnetic field flow at the first magnetic flow slot 22, reducing the influence of the magnetic field on the silicon steel chip, avoiding the magnet from generating an extrusion force on the crystal core 20, and improving the reliability of the crystal core 20.

[0046] According to some embodiments of the present invention, Figure 2 and Figure 4 As shown, there are multiple first grooves 21, which are arranged at intervals along the circumference of the rotor structure 100, and the distance between two adjacent first grooves 21 tends to increase along the radial direction of the rotor structure 100; there are multiple second grooves 11, which are arranged at intervals along the circumference of the rotor structure 100, and the distance between two adjacent second grooves 11 tends to increase along the radial direction of the rotor structure 100.

[0047] In this embodiment, the spacing between two adjacent first grooves 21 gradually increases in the direction away from the center of the rotor structure 100, and the spacing between two adjacent second grooves 11 gradually increases in the direction away from the center of the rotor structure 100. Therefore, the spacing between two adjacent first grooves 21 increases in the radial direction of the rotor structure 100, and the spacing between two adjacent second grooves 11 increases in the radial direction of the rotor structure 100. By increasing the angle between the magnets in the radial direction of the rotor structure 100, the output torque of the rotor structure 100 can be increased, the torque pulsation can be weakened, and the stability and safety of the motor operation can be improved.

[0048] According to some embodiments of the present invention, the rotor structure 100 further includes: an adhesive member disposed between the amorphous alloy rotor core 10 and the crystalline core 20 , and the adhesive member is disposed on at least one of the amorphous alloy rotor core 10 and the crystalline core 20 .

[0049] The adhesive is disposed on the amorphous alloy rotor core 10 or the crystalline core 20 along the thickness direction of the rotor structure 100, and the adhesive is suitable for bonding the amorphous alloy rotor core 10 and the crystalline core 20. In this embodiment, the adhesive can be a single-component epoxy resin structural adhesive with high bonding strength.

[0050] Therefore, the adhesive is arranged between the amorphous alloy rotor core 10 and the crystalline core 20, and the adhesive is arranged on at least one of the amorphous alloy rotor core 10 and the crystalline core 20, which can improve the connection strength between the amorphous alloy rotor core 10 and the crystalline core 20, avoid relative displacement between the amorphous alloy rotor core 10 and the crystalline core 20, and improve the structural strength and reliability of the rotor structure 100.

[0051] According to some embodiments of the present invention, Figure 4 As shown, the rotor structure 100 is formed with a plurality of weight-reducing holes 30 , which are arranged at intervals along the circumference of the rotor structure 100 , and penetrate the amorphous alloy rotor core 10 and the crystalline core 20 along the thickness direction of the rotor structure 100 .

[0052] That is, along the radial direction of the rotor structure 100, the plurality of weight-reducing holes 30 are adjacent to the central area of ​​the rotor structure 100 compared to the first groove 21 and the second groove 11, and both the amorphous alloy rotor core 10 and the crystal core 20 have weight-reducing holes 30. In this embodiment, the cross-sectional shape of the plurality of weight-reducing holes 30 may be circular or polygonal. Thus, the plurality of weight-reducing holes 30 are arranged on the amorphous alloy rotor core 10 and the crystal core 20 at intervals along the circumferential direction of the rotor structure 100, which can reduce the weight of the amorphous alloy rotor core 10 and the crystal core 20, increase the rotation speed of the rotor structure 100, and realize the lightweight design of the rotor structure 100, thereby reducing the production cost.

[0053] According to some embodiments of the present invention, Figure 4 As shown, the rotor structure 100 is formed with an axial hole 31 , and the axial hole 31 penetrates the amorphous alloy rotor core 10 and the crystalline core 20 along the thickness direction of the rotor structure 100 .

[0054] That is, in the central area of ​​the rotor structure 100, an axial hole 31 is formed by respectively penetrating the amorphous alloy rotor core 10 and the crystal core 20 along the thickness direction of the rotor structure 100, and the axial hole 31 is suitable for matching with the motor shaft on the motor. Thus, the rotor structure 100 is formed with the axial hole 31, and the axial hole 31 penetrates the amorphous alloy rotor core 10 and the crystal core 20 along the thickness direction of the rotor structure 100, which can facilitate the fixing of the rotor structure 100 on the motor and the transmission of the output torque of the rotor structure 100 to the motor.

[0055] According to some embodiments of the present invention, Figure 4 As shown, a positioning portion 311 is provided on the side wall of the shaft hole 31 , and the positioning portion 311 extends along the axial direction of the rotor structure 100 .

[0056] That is, a positioning portion 311 is provided on the side wall of the shaft hole 31 along the thickness direction of the rotor structure 100, and one side of the positioning portion 311 along the thickness direction of the rotor structure 100 is connected to the side wall of the shaft hole 31, and the other side extends along the radial direction of the rotor structure 100 toward the center of the rotor structure 100. Therefore, the positioning portion 311 is provided on the side wall of the shaft hole 31, and the positioning portion 311 extends along the axial direction of the rotor structure 100, which is convenient for positioning the rotor structure 100 on the motor shaft, and at the same time, provides a guiding effect for the positioning of the shaft hole 31 on the motor shaft, improves the structural strength of the shaft hole 31, avoids the shaft hole 31 from breaking when the motor shaft is matched, prolongs the service life of the rotor structure 100, and improves the reliability of the connection between the rotor structure 100 and the motor shaft.

[0057] According to some embodiments of the present invention, Figure 4 As shown, there are a plurality of positioning portions 311 , and the plurality of positioning portions 311 are opposite to each other along the radial direction of the rotor structure 100 .

[0058] In this embodiment, two positioning portions 311 are provided on the side wall of the shaft hole 31. The two positioning portions 311 are opposite to each other along the radial direction of the rotor structure 100, which can further improve the connection strength and connection accuracy between the rotor structure 100 and the motor shaft. At the same time, the structural strength of the rotor structure 100 is improved, the service life of the rotor structure 100 is extended, and the connection efficiency between the rotor structure 100 and the motor shaft is improved.

[0059] The motor according to the second aspect of the present invention comprises the rotor structure 100 of any one of the above-mentioned first aspect of the embodiments.

[0060] In this embodiment, the multi-layer amorphous alloy rotor core 10 is stacked along the thickness direction of the rotor structure 100, and the rotor structure 100 cooperates with the motor shaft through the shaft hole 31. The magnetic field generated by the magnets on the amorphous alloy rotor core 10 and the crystal core 20 interacts with the rotor structure 100 to generate an output torque, which is transmitted to the motor through the motor shaft, thereby making the motor run. By bonding the crystal core 20 to both sides of the amorphous alloy rotor core 10, the amorphous alloy rotor core 10 can be effectively protected, and the high-speed reliability requirements of the motor can be met while improving the stability of the rotor structure 100, thereby improving the stability and reliability of the motor.

[0061] The vehicle according to the third aspect of the present invention comprises the rotor structure 100 of any one of the first aspect of the present invention or the motor of the second aspect of the present invention.

[0062] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0063] In the description of the present invention, "first feature" and "second feature" may include one or more of the features. In the description of the present invention, "plurality" means two or more. In the description of the present invention, a first feature "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. In the description of the present invention, a first feature "above", "above" and "above" a second feature may include the first feature being directly above and obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature.

[0064] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example.

[0065] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A rotor structure (100), characterized in that: include: Amorphous alloy rotor core (10); A crystal iron core (20), wherein the crystal iron core (20) is arranged on both sides of the amorphous alloy rotor iron core (10), and the crystal iron core (20) is connected to the amorphous alloy rotor iron core (10).

2. The rotor structure (100) according to claim 1, characterized in that: The crystal iron core (20) is a silicon steel core.

3. The rotor structure (100) according to claim 1, characterized in that: The crystal core (20) is formed with a first groove (21); A second groove (11) is formed on the amorphous alloy rotor core (10), and the first groove (21) and the second groove (11) are at least partially opposite to each other along the thickness direction of the rotor structure (100).

4. The rotor structure (100) according to claim 3, characterized in that: The first groove (21) comprises a first mounting groove (211) and a first magnetic isolation groove (212), wherein the first magnetic isolation groove (212) is arranged at two ends of the first mounting groove (211); The second groove (11) comprises a second mounting groove (111) and a second magnetic isolation groove (112); the first mounting groove (211) and the second mounting groove (111) are opposite to each other along the thickness direction of the rotor structure (100); the second magnetic isolation groove (112) is arranged at both ends of the second mounting groove (111); and the width of the first mounting groove (211) is greater than or equal to the width of the second mounting groove (111).

5. The rotor structure (100) according to claim 4, characterized in that: A projection of the second installation groove (111) in the stacking direction of the amorphous alloy rotor core (10) and the crystalline core (20) is located within a projection of the first installation groove (211) in the stacking direction of the amorphous alloy rotor core (10) and the crystalline core (20).

6. The rotor structure (100) according to claim 4, characterized in that: The rotor structure (100) further comprises: A magnet, the magnet being arranged in the first mounting groove (211) and the second mounting groove (111), the magnet being in clearance fit with at least part of the side wall of the first mounting groove (211); the magnet being in clearance fit with at least part of the side wall of the second mounting groove (111).

7. The rotor structure (100) according to claim 6, characterized in that: The distance between the magnet and the corresponding side wall of the first installation groove (211) is L1; The interval between the magnet and the corresponding side wall of the second installation groove (111) is L2, and L1 and L2 satisfy: L1≥L2.

8. The rotor structure (100) according to claim 4, characterized in that: A first magnetic flow groove (22) is formed at the connection between the first mounting groove (211) and the first magnetic isolation groove (212), and the first magnetic flow groove (22) is formed on a side of the first magnetic isolation groove (212) adjacent to the center of the rotor structure (100) along the radial direction of the rotor structure (100); A second magnetic flow groove (12) is formed at the connection between the second mounting groove (111) and the second magnetic isolation groove (112); the second magnetic flow groove (12) is formed on a side of the second magnetic isolation groove (112) adjacent to the center of the rotor structure (100) along the radial direction of the rotor structure (100); along the radial direction of the rotor structure (100), a side wall of the first magnetic flow groove (22) adjacent to the center of the rotor structure (100) is arranged on a side of the side wall of the second magnetic flow groove (12) adjacent to the center of the rotor structure (100) facing the center of the rotor structure (100).

9. The rotor structure (100) according to claim 3, characterized in that: There are a plurality of first grooves (21), the plurality of first grooves (21) are arranged at intervals along the circumference of the rotor structure (100), and the spacing between two adjacent first grooves (21) increases along the radial direction of the rotor structure (100); There are a plurality of second grooves (11), the plurality of second grooves (11) are arranged at intervals along the circumference of the rotor structure (100), and the spacing between two adjacent second grooves (11) tends to increase along the radial direction of the rotor structure (100).

10. The rotor structure (100) according to claim 1, characterized in that It also comprises: an adhesive member, the adhesive member being arranged between the amorphous alloy rotor core (10) and the crystalline core (20), the adhesive member being arranged on at least one of the amorphous alloy rotor core (10) and the crystalline core (20).

11. The rotor structure (100) according to any one of claims 1 to 10, characterized in that: The rotor structure (100) is formed with a plurality of weight-reducing holes (30), the plurality of weight-reducing holes (30) being arranged at intervals along the circumference of the rotor structure (100), and the plurality of weight-reducing holes (30) penetrating the amorphous alloy rotor core (10) and the crystalline core (20) along the thickness direction of the rotor structure (100).

12. The rotor structure (100) according to any one of claims 1 to 10, characterized in that: The rotor structure (100) is formed with an axial hole (31), and the axial hole (31) penetrates the amorphous alloy rotor core (10) and the crystalline core (20) along the thickness direction of the rotor structure (100).

13. The rotor structure (100) according to claim 12, characterized in that: A positioning portion (311) is provided on the side wall of the shaft hole (31), and the positioning portion (311) extends along the axial direction of the rotor structure (100).

14. The rotor structure (100) according to claim 13, characterized in that There are a plurality of positioning portions (311), and the plurality of positioning portions (311) are opposite to each other along the radial direction of the rotor structure (100).

15. A motor, characterized in that: Comprising a rotor structure (100) according to any one of claims 1 to 14.

16. A vehicle, characterized in that: The invention comprises a rotor structure (100) according to any one of claims 1 to 14, or an electric machine according to claim 15.

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