Laminated core, stator assembly, motor, suspension system and vehicle

Abstract

The utility model discloses a lamination iron core, stator assembly, motor, suspension system and vehicle, the lamination iron core includes: support frame and a plurality of lamination monomers, the periphery of support frame is provided with a first positioning portion, the plurality of lamination monomers are arranged along the circumference of support frame, the first end of each lamination monomer is provided with a second positioning portion, the second end of each lamination monomer is provided with a third positioning portion, and the third positioning portion is provided with a fourth positioning portion. And the second positioning part of each lamination single body is matched with the first positioning part so as to fixedly connect the plurality of lamination single bodies to the support frame. According to the laminated iron core provided by the utility model, the eddy current loss of the laminated iron core is reduced, and the thrust and efficiency of a motor are improved.

Description

[0001] Cross-references to related applications

[0002] This utility model is based on Chinese Patent Application No. 2023118651082, filed on December 29, 2023, and claims priority to that Chinese Patent Application, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This utility model relates to the field of stator core technology, and in particular to a laminated core, stator assembly, motor, suspension system and vehicle. Background Technology

[0004] In related technologies, the existing stator structure is composed of iron discs, but this type of stator structure has high eddy current losses. Utility Model Content

[0005] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a laminated iron core that can reduce eddy current losses and improve the thrust and efficiency of the motor.

[0006] According to an embodiment of the present invention, a laminated iron core includes: a support frame, wherein a first positioning part is provided on the outer periphery of the support frame; a plurality of laminated units, wherein the plurality of laminated units are arranged along the circumferential direction of the support frame, wherein a second positioning part is provided at a first end of each laminated unit, and the second positioning part of each laminated unit cooperates with the first positioning part to connect the plurality of laminated units to the support frame.

[0007] According to the embodiment of the present invention, the laminated iron core has its laminated individual units directly fixedly connected to the support frame through the positioning cooperation of the first positioning part and the second positioning part, which makes its connection structure simpler and helps to reduce costs and achieve lightweighting of the laminated iron core. At the same time, multiple laminated individual units are arranged along the circumference of the support frame to reduce the eddy current loss of the laminated iron core and improve the thrust and efficiency of the motor.

[0008] According to some embodiments of the present invention, in a laminated iron core, the first positioning part is formed as a positioning groove, and the second positioning part is formed as a positioning protrusion, wherein the positioning protrusion is inserted into the positioning groove.

[0009] According to some embodiments of the present invention, in the laminated iron core, the positioning groove is annular, and the positioning groove is inserted into and engaged with the positioning protrusions of a plurality of laminated individual units.

[0010] According to some embodiments of the present invention, in the laminated iron core, adjacent laminated units are insulated from each other.

[0011] According to the lamination core of some embodiments of the utility model, the opposite side walls of each lamination monomer are provided with an insulating material layer.

[0012] According to the lamination core of some embodiments of the utility model, the opposite side walls of each lamination monomer are provided with an insulating material layer.

[0013] According to the lamination core of some embodiments of the utility model, the opposite side walls of each lamination monomer are provided with an insulating material layer.

[0014] According to the lamination core of some embodiments of the utility model, the opposite side walls of each lamination monomer are provided with an insulating material layer.

[0015] According to the lamination core of some embodiments of the utility model, the opposite side walls of each lamination monomer are provided with an insulating material layer.

[0016] The utility model discloses still propose a kind of stator assembly.

[0017] According to the lamination core of some embodiments of the utility model, the opposite side walls of each lamination monomer are provided with an insulating material layer.

[0018] According to the lamination core of some embodiments of the utility model, the opposite side walls of each lamination monomer are provided with an insulating material layer.

[0019] According to the lamination core of some embodiments of the utility model, the opposite side walls of each lamination monomer are provided with an insulating material layer.

[0020] According to the lamination core of some embodiments of the utility model, the opposite side walls of each lamination monomer are provided with an insulating material layer.

[0021] The utility model discloses still propose a kind of motor.

[0022] According to the lamination core of some embodiments of the utility model, the opposite side walls of each lamination monomer are provided with an insulating material layer.

[0023] The utility model discloses still propose a kind of suspension system.

[0024] According to the lamination core of some embodiments of the utility model, the opposite side walls of each lamination monomer are provided with an insulating material layer.

[0025] The utility model discloses still propose a kind of vehicle.

[0026] The vehicle according to the embodiment of the present application comprises the suspension system according to any one of the above embodiments.

[0027] The vehicle, the suspension system, the stator assembly and the laminated core have the same advantages as the prior art, and details are not repeated here.

[0028] The additional aspects and advantages of the present application will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0029] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings in which:

[0030] Figure 1 is a schematic view of the laminated core of some embodiments of the present application;

[0031] Figure 2 is Figure 1 a cross-sectional view of A-A in FIG.

[0032] Figure 3 is Figure 1 a schematic view of the support frame of the laminated core shown in FIG.

[0033] Figure 4 is Figure 1 a schematic view of the laminated monomer of the laminated core shown in FIG.

[0034] Figure 5 is a cross-sectional view of the stator assembly of some embodiments of the present application.

[0035] REFERENCE NUMERALS:

[0036] Stator assembly 100; laminated core 10; center shaft 20; coil winding 30; placement space 40; support frame 1; circumferential direction X of support frame, axial direction Y of support frame; radial direction Z of support frame; first positioning portion 11; second limiting portion 12; laminated monomer 2; second positioning portion 21; wire passing groove 3. DETAILED DESCRIPTION

[0037] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0038] The disclosure below provides many different embodiments or examples for implementing different structures of the present application. In order to simplify the disclosure of the present application, the components and settings of specific examples are described below. Of course, they are only examples and the purpose is not to limit the present application. In addition, the present application can repeatedly refer to numbers and / or letters in different examples. Such repetition is for the purpose of simplification and clarity, which in itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the present application provides examples of various specific processes and materials, but those skilled in the art can realize the applicability of other processes and / or the use of other materials.

[0039] The following description refers to the accompanying drawings of Figures 1-5 The laminated core 10 according to an embodiment of the present application is described.

[0040] The laminated core 10 according to an embodiment of the present application comprises a support frame 1 and a plurality of laminated monomers 2.

[0041] The outer periphery of the support frame 1 is provided with a first positioning part 11, and the plurality of laminated monomers 2 are arranged along the circumferential direction X of the support frame 1. The first end of each laminated monomer 2 is provided with a second positioning part 21, and the second positioning part 21 of each laminated monomer 2 cooperates with the first positioning part 11 to fixedly connect the plurality of laminated monomers 2 to the support frame 1.

[0042] Thus, the arrangement space of the laminated monomer 2 can be reduced to improve the space utilization, and the structure of the laminated core 10 arranged in this way is simpler, which is beneficial to reduce the cost and lightweight design. At the same time, the longer eddy current loop in the prior art can be broken, thereby reducing the eddy current to reduce the eddy current loss and improve the motor efficiency.

[0043] For example Figure 1 As shown, the laminated core 10 comprises a support frame 1 and a plurality of laminated monomers 2.

[0044] Among them, the support frame 1 can be annular or square, or polygonal, which is not limited here.

[0045] The plurality of laminated monomers 2 are arranged along the circumferential direction X of the support frame 1 at the outer periphery of the support frame 1 to form a circular ring-shaped core. In this way, more laminated monomers 2 can be arranged in the arrangement space outside the circumferential direction X of the support frame 1.

[0046] Among them, as Figure 4 shown, the laminated monomer 2 can be configured as a fan-shaped core piece, for example Figure 4 shown, in the radial direction Z of the support frame 1, the thickness of the laminated monomer 2 near one end of the support frame 1 is smaller than the thickness of the laminated monomer 2 away from one end of the support frame 1, that is, the structure of the inside thin and the outside thick is formed, wherein the thickness of the laminated monomer 2 core piece needs to be as thin as possible under the premise of meeting the process, use and other requirements.

[0047] It is worth mentioning that the support frame 1 and the lamination monomer 2 are both selected from a magnetic conductive material, and a material with high resistivity is selected as much as possible to increase the resistance on the eddy current path and reduce the eddy current, thereby reducing the eddy current loss.

[0048] The outer periphery of the support frame 1 is provided with a first positioning part 11, and the first end of the lamination monomer 2 (the end of the lamination monomer 2 facing the support frame 1, i.e. the inner end) is provided with a second positioning part 21, and the first positioning part 11 and the second positioning part 21 are positioned and matched to fix the plurality of lamination monomers 2 to the support frame 1.

[0049] Among them, the positioning and matching mode of the first positioning part 11 and the second positioning part 21 includes but is not limited to bolt connection, or clamping connection, or plug-in connection, etc.

[0050] Therefore, the lamination monomer 2 can be directly fixed on the support frame 1, compared with the fixing mode of setting a splicing frame between adjacent lamination monomers 2 and fixing the splicing frame by a fixing ring, the lamination core 10 of the application can reduce the setting of the splicing frame, thereby reducing the occupation of the arrangement space of the lamination monomer 2, to improve the space utilization, and the structure of the lamination core 10 thus arranged is simpler, which is beneficial to reduce the cost and lightweight design, and at the same time, it is beneficial to reduce the eddy current loss and improve the motor efficiency.

[0051] According to the lamination core 10 of the embodiment of the application, the lamination monomer 2 is directly fixed and connected to the support frame 1 through the positioning and matching of the first positioning part 11 and the second positioning part 21, so that the connection structure is simpler, and it is beneficial to reduce the cost and realize the lightweight of the lamination core 10, and at the same time, the plurality of lamination monomers 2 are arranged along the circumferential direction of the support frame 1, so as to reduce the eddy current loss of the lamination core 10 and improve the thrust and efficiency of the motor.

[0052] In some embodiments, as shown in Figure 3 The first positioning part 11 is formed as a positioning groove, and as shown in Figure 2 and Figure 4 The second positioning part 21 is formed as a positioning protrusion, and the positioning protrusion is plug-in matched with the positioning groove.

[0053] Therefore, by configuring the first positioning part 11 as a positioning groove, the plurality of lamination monomers 2 are respectively plug-in matched with the positioning groove through the positioning protrusions thereof outside the circumferential direction X of the support frame 1, so as to fix the plurality of lamination monomers 2 to the support frame 1 while meeting the arrangement of the plurality of lamination monomers 2 in the circumferential direction X of the support frame 1.

[0054] The structure of the positioning groove and the positioning protrusion is simpler, which is conducive to reducing the setting difficulty and cost. The positioning protrusion is inserted into the positioning groove, so that the positioning groove can limit and support the positioning protrusion, thereby enhancing the connection reliability of the positioning protrusion and the positioning groove, and further enhancing the connection reliability of the lamination monomer 2 and the support frame 1.

[0055] In some embodiments, as shown in Figure 3 The positioning groove is annular, and the positioning groove is inserted into the positioning protrusions of the plurality of lamination monomers 2.

[0056] Therefore, the positioning groove is annular, so that the structure of the positioning groove is simpler, which is conducive to reducing the setting difficulty of the positioning groove. The plurality of lamination monomers 2 can be arranged along the circumference of the annular positioning groove, so that the positioning protrusions of the plurality of lamination monomers 2 are inserted into different positions on the circumference of the annular positioning groove, thereby facilitating the arrangement of the plurality of lamination monomers 2 on the circumference of the support frame 1.

[0057] For example, as shown in Figure 3 The positioning groove is arranged on the outer circumference of the support frame 1, the positioning groove extends along the circumference X of the support frame 1 and opens outward in the radial direction Z of the support frame 1. The positioning protrusion is arranged on the first end of the lamination monomer 2, and the outer end of the positioning protrusion can be provided with a guide slope. When the positioning protrusion is inserted into the positioning groove, the guide slope can guide the assembly, thereby reducing the assembly difficulty and improving the assembly efficiency.

[0058] In some embodiments, the adjacent lamination monomers 2 are insulated.

[0059] Therefore, the adjacent lamination monomers 2 are insulated, which can break the original longer eddy current loop, so that the eddy current can only pass through a smaller cross section in the long loop of each lamination monomer 2, thereby increasing the resistance on the eddy current path and reducing the eddy current to reduce the eddy current loss.

[0060] The insulation arrangement includes but is not limited to arranging insulating resin, or arranging insulating paint, etc.

[0061] In some embodiments, the opposite side walls of each lamination monomer 2 are provided with an insulating material layer.

[0062] Therefore, by arranging the insulating material layer, the insulation design between the adjacent lamination monomers 2 is achieved, and the insulating material layer occupies less arrangement space of the lamination monomer 2 on the outer side of the circumference X of the support frame 1, thereby reducing the occupation of the arrangement space of the lamination monomer 2. The insulating material layer can be an insulating resin layer or an insulating paint, etc.

[0063] In some embodiments, an insulation is arranged between each lamination cell 2 and the support frame 1. In this way, the problem of electric conduction between the lamination cell 2 and the support frame 1 can be avoided. The insulation arrangement includes, but is not limited to, arranging insulating resin, or arranging insulating paint, etc.

[0064] In some embodiments, the adjacent lamination cells 2 are fixedly connected by adhesion.

[0065] In this way, the connection reliability between the adjacent lamination cells 2 can be enhanced, and the adhesion method is simpler, which is conducive to reducing the difficulty of arrangement, and at the same time, the adhesion method can reduce the occupation of the arrangement space of the lamination cell 2, thereby improving the space utilization.

[0066] It should be noted that the adhesive substance for realizing the adhesion and fixed connection of the adjacent lamination cells 2 can be coated on the outer side of the lamination cell 2, and the coating should be as thin as possible while meeting the requirements, so as to reduce the occupation of the arrangement space of the lamination cell 2 and avoid excessive reduction of the magnetic permeability of the lamination core 10.

[0067] Optionally, after the adhesive substance is coated, an insulating material can also be coated. If the adhesive substance meets the insulation requirements, the insulating material can not be coated.

[0068] In some embodiments, the length of a part of the lamination cells 2 is less than the length of the remaining lamination cells 2, so that the lamination core 10 is provided with a wire slot 3. It can be understood that the length of the lamination cell 2 is the extension length of the lamination cell in the radial direction.

[0069] In this way, by arranging the wire slot 3, the winding wiring is facilitated, and the arrangement of the wire slot 3 is simpler, which is conducive to reducing the difficulty and cost of arranging the wire slot 3.

[0070] For example, the wire slot 3 is arranged at the side region of the lamination cell 2 away from the support frame 1, wherein the position, shape and number of the wire slot 3 can be adjusted according to requirements, and the shapes of the plurality of wire slots 3 are recommended to be uniform, which can reduce the specifications of the lamination cell 2.

[0071] In some embodiments, the wire slot 3 is a plurality of and is arranged at uniform intervals in the circumferential direction.

[0072] In this way, the arrangement direction of the wire slot 3 is the same as the distribution direction of the lamination cell 2, and the wire slot 3 is arranged in the circumferential direction, so as to better utilize the different lengths of the plurality of lamination cells 2 to define the wire slot 3.

[0073] It should be noted that since the motor is generally a three-phase motor, the wire slot 3 can be provided with three, but in the present application, for example, Figure 1The wire guide 3 is provided in six slots. The six wire guide slots 3 are provided to provide versatility for the laminated cell 10. For example, since the connection of wires in different layers in the same motor does not necessarily use the wire guide 3 at the same circumferential position, the six wire guide slots 3 are provided so that the laminated cell 10 can be adapted to different types of motors.

[0074] This utility model also proposes a stator assembly 100.

[0075] The stator assembly 100 according to an embodiment of the present utility model includes: a plurality of lamination iron cores 10, wherein the lamination iron cores 10 are lamination iron cores 10 of any of the above embodiments, the plurality of lamination iron cores 10 are stacked, and a placement space 40 for the coil winding 30 is defined between adjacent lamination iron cores 10.

[0076] Therefore, the space between adjacent laminated iron cores 10 can be used to arrange the coil windings 30, thereby improving space utilization and facilitating the miniaturization of the stator assembly 100. Simultaneously, the two adjacent laminated iron cores 10 can provide limiting support for the coil windings 30, enhancing their structural stability.

[0077] It should be noted that since the stator assembly 100 usually requires multiple laminated iron cores 10 to be stacked along its axial direction, the support frame 1 is also used to bear the weight of the upper laminated iron core 10 and the coil winding 30. This arrangement avoids the weight being directly borne by the laminated individual 2, thus improving the reliability of the laminated iron core 10.

[0078] For example Figure 5 As shown, the stator assembly 100 includes two laminated iron cores 10, which are stacked along the axial Y direction of the support frame 1, and a placement space 40 is defined between adjacent laminated iron cores 10. The coil winding 30 is placed within the placement space 40. The laminated iron cores 10 provide support for the coil winding 30 and provide a path for the magnetic field generated by the coil winding 30, and also withstand the interaction force between the magnetic field and the power magnet.

[0079] In one embodiment where multiple laminated iron cores 10 are stacked on the axial Y-axis of the support frame 1, the support frame 1 can be designed as an integral structure or as an upper and lower split structure connected by fasteners, etc., with the integral design preferred.

[0080] In some embodiments, such as Figure 5 As shown, the stator assembly 100 also includes a central shaft 20, which passes through the support frame 1. That is, the axis of the central shaft 20 coincides with the axis of the support frame 1, so that the central shaft 20 can pass through the support frame 1 along the axial direction Y.

[0081] Therefore, when assembling the stator assembly 100, multiple lamination cores 10 can be assembled sequentially along the axial direction of the central shaft 20 to achieve stacking of multiple lamination cores 10 in the axial direction of the central shaft 20. In this way, the central shaft 20 can play a guiding role during assembly, thereby reducing the assembly difficulty of the lamination cores 10 and improving assembly efficiency.

[0082] In some embodiments, the central shaft 20 is provided with a first limiting portion, such as... Figure 1 and Figure 3 As shown, the support frame 1 is provided with a second limiting part 12, and the first limiting part and the second limiting part 12 cooperate to restrict the circumferential rotation of the laminated iron core 10.

[0083] Therefore, by setting the first limiting part and the second limiting part 12, the circumferential rotation of the laminated iron core 10 can be restricted by the cooperation of the first limiting part and the second limiting part 12, thereby enhancing the connection reliability between the laminated iron core 10 and the central shaft 20.

[0084] The first limiting part and the second limiting part 12 can be a plug-in fit or a snap-fit ​​fit, etc., which are not limited here.

[0085] In some embodiments, the first limiting part is a limiting protrusion, and the second limiting part 12 is a limiting groove provided on the inner peripheral wall of the support frame 1. In this way, the structure of the limiting protrusion and the limiting groove is simple, which facilitates the simplification of structural design, and after the limiting protrusion extends into the limiting groove, it will not occupy additional installation space, thereby reducing the impact on the size of the stator assembly 100.

[0086] This utility model also proposes an electric motor.

[0087] The motor according to the present invention includes the stator assembly 100 of any of the above embodiments.

[0088] It is worth noting that when a motor is powered on, the winding coils generate a magnetic field. If the current changes, the magnetic field also changes, and this change causes induced currents, or eddy currents, to be generated inside the iron core. Eddy currents generate heat loss and reduce the motor's operating efficiency.

[0089] In this invention, the iron core is divided into several stacked units 2 along the circumferential direction, and each stacked unit 2 is insulated from the others. This breaks the original long eddy current loop, allowing it to pass through a smaller cross section in the narrow loop of each fan-shaped thin sheet. This increases the resistance in the eddy current loop, reduces the eddy current, and thus reduces eddy current loss.

[0090] According to the motor of the embodiment of the utility model, the lamination monomer 2 of the stator assembly 100 is directly fixedly connected to the support frame 1 through the positioning cooperation of the first positioning part 11 and the second positioning part 21, so that the connecting structure is simpler, and it is beneficial to reduce the cost and realize the lightweight of the lamination core 10; meanwhile, the plurality of lamination monomers 2 are arranged along the circumferential direction of the support frame 1, so as to reduce the eddy current loss of the lamination core 10 and improve the thrust and efficiency of the motor.

[0091] The utility model also proposes a kind of suspension system.

[0092] According to the suspension system of the embodiment of the utility model, the motor is linear motor.

[0093] According to the suspension system of the embodiment of the utility model, the lamination monomer 2 of the stator assembly 100 is directly fixedly connected to the support frame 1 through the positioning cooperation of the first positioning part 11 and the second positioning part 21, so that the connecting structure is simpler, and it is beneficial to reduce the cost and realize the lightweight of the lamination core 10; meanwhile, the plurality of lamination monomers 2 are arranged along the circumferential direction of the support frame 1, so as to reduce the eddy current loss of the lamination core 10 and improve the thrust and efficiency of the motor.

[0094] The utility model also proposes a kind of vehicle.

[0095] According to the vehicle of the embodiment of the utility model, the suspension system of any one embodiment above is included.

[0096] According to the vehicle of the embodiment of the utility model, the lamination monomer 2 of the stator assembly 100 is directly fixedly connected to the support frame 1 through the positioning cooperation of the first positioning part 11 and the second positioning part 21, so that the connecting structure is simpler, and it is beneficial to reduce the cost and realize the lightweight of the lamination core 10; meanwhile, the plurality of lamination monomers 2 are arranged along the circumferential direction of the support frame 1, so as to reduce the eddy current loss of the lamination core 10 and improve the thrust and efficiency of the motor.

[0097] In the description of the utility model, it needs to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" is based on the orientation or positional relationship shown in the drawing, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model.

[0098] In addition, the terms "first", "second", "third", etc. are used only for descriptive purposes and do not connote or imply any relative importance or any meaning pertaining to the quantity of the features being described. Thus, a feature defined with "first", "second", etc. can include one or more of the features implicitly or explicitly. In the description of the present application, the meaning of "a plurality" is two or more, unless specifically defined otherwise.

[0099] In the present application, unless specifically defined and limited otherwise, the terms "mounting", "connecting", "connection", "fixed", and the like should be interpreted broadly, for example, can be fixed connection, can also be detachable connection, or integrated; can be mechanical connection, can also be electrical connection, and can also be communication; can be directly connected, can also be indirectly connected through an intermediate medium, and can be the communication or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0100] In the present application, unless specifically defined and limited otherwise, the first feature "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "under" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0101] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example", 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 application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or features of different embodiments or examples described in the present application without contradiction.

[0102] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A laminated core (10) characterized by, The support frame (1) is provided with a first positioning portion (11) on the outer periphery thereof. A plurality of lamination monomers (2) are arranged along the circumference of the support frame (1), each of the lamination monomers (2) is provided with a second positioning portion (21) at the first end thereof, and the second positioning portion (21) of each of the lamination monomers (2) cooperates with the first positioning portion (11) to connect the plurality of lamination monomers (2) to the support frame (1). The first positioning portion (11) is formed as a positioning groove, and the second positioning portion (21) is formed as a positioning protrusion which is insertedly fitted with the positioning groove.

2. The lamination core (10) according to claim 1, characterized in that The positioning groove is configured as an annular shape and is insertedly fitted with the positioning protrusions of the plurality of lamination monomers (2).

3. The lamination core (10) according to claim 2, characterized in that The adjacent lamination monomers (2) are insulatively arranged.

4. The lamination core (10) according to claim 1, characterized in that The opposite side walls of each of the lamination monomers (2) are provided with a layer of insulating material.

5. The lamination core (10) according to claim 4, characterized in that The adjacent lamination monomers (2) are adhesively fixedly connected.

6. The lamination core (10) according to claim 4, characterized in that The length of a part of the lamination monomers (2) is less than the length of the remaining lamination monomers (2) so that the outer periphery of the lamination core (10) is provided with a wire slot (3).

7. The lamination core (10) according to claim 1, characterized in that The wire slot (3) is a plurality of and is uniformly spaced along the circumference.

8. The lamination core (10) according to any one of claims 1-7, characterized in that The support frame (1) is provided with a first positioning portion (11) on the outer periphery thereof.

9. The lamination core (10) according to claim 8, characterized in that A plurality of lamination monomers (2) are arranged along the circumference of the support frame (1), each of the lamination monomers (2) is provided with a second positioning portion (21) at the first end thereof, and the second positioning portion (21) of each of the lamination monomers (2) cooperates with the first positioning portion (11) to connect the plurality of lamination monomers (2) to the support frame (1).

10. A stator assembly (100) characterized by, The first positioning portion (11) is formed as a positioning groove, and the second positioning portion (21) is formed as a positioning protrusion which is insertedly fitted with the positioning groove. The positioning groove is configured as an annular shape and is insertedly fitted with the positioning protrusions of the plurality of lamination monomers (2).

11. The stator assembly (100) of claim 10, wherein, The adjacent lamination monomers (2) are insulatively arranged.

12. The stator assembly (100) of claim 11, wherein, The opposite side walls of each of the lamination monomers (2) are provided with a layer of insulating material.

13. The stator assembly (100) of claim 12, wherein, The adjacent lamination monomers (2) are adhesively fixedly connected.

14. An electric machine characterized by The length of a part of the lamination monomers (2) is less than the length of the remaining lamination monomers (2) so that the outer periphery of the lamination core (10) is provided with a wire slot (3).

15. A suspension system characterized by, The wire slot (3) is a plurality of and is uniformly spaced along the circumference.

16. A vehicle characterized by comprising: The support frame (1) is provided with a first positioning portion (11) on the outer periphery thereof. A plurality of lamination monomers (2) are arranged along the circumference of the support frame (1), each of the lamination monomers (2) is provided with a second positioning portion (21) at the first end thereof, and the second positioning portion (21) of each of the lamination monomers (2) cooperates with the first positioning portion (11) to connect the plurality of lamination monomers (2) to the support frame (1). The first positioning portion (11) is formed as a positioning groove, and the second positioning portion (21) is formed as a positioning protrusion which is insertedly fitted with the positioning groove. The positioning groove is configured as an annular shape and is insertedly fitted with the positioning protrusions of the plurality of lamination monomers (2). The adjacent lamination monomers (2) are insulatively arranged. The opposite side walls of each of the lamination monomers (2) are provided with a layer of insulating material. The adjacent lamination monomers (2) are adhesively fixedly connected. The length of a part of the lamination monomers (2) is less than the length of the remaining lamination monomers (2) so that the outer periphery of the lamination core (10) is provided with a wire slot (3). The wire slot (3) is a plurality of and is uniformly spaced along the circumference. The support frame (1) is provided with a first positioning portion (11) on the outer periphery thereof. A plurality of lamination monomers (2) are arranged along the circumference of the support frame (1), each of the lamination monomers (2) is provided with a second positioning portion (21) at the first end thereof, and the second positioning portion (21) of each of the lamination monomers (2) cooperates with the first positioning portion (11) to connect the plurality of lamination monomers (2) to the support frame (1). The first positioning portion (11) is formed as a positioning groove, and the second positioning portion (21) is formed as a positioning protrusion which is insertedly fitted with the positioning groove. The positioning groove is configured as an annular shape and is insertedly fitted with the positioning protrusions of the plurality of lamination monomers (2). The adjacent lamination monomers (2) are insulatively arranged. The opposite side walls of each of the lamination monomers (2) are provided with a layer of insulating material. The adjacent lamination monomers (2) are adhesively fixedly connected. The length of a part of the lamination monomers (2) is less than the length of the remaining lamination monomers (2) so that the outer periphery of the lamination core (10) is provided with a wire slot (3). The wire slot (3) is a plurality of and is uniformly spaced along the circumference.

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