Stator core, stator assembly, motor, motor assembly and vehicle

Abstract

The utility model discloses a stator core, a stator assembly, a motor, a motor assembly and a vehicle, the stator core comprises a plurality of stator modules, each stator module comprises a stator main body iron core and a stator tooth boot, the stator tooth boot is connected with the stator main body iron core, a first matching surface is formed on the stator main body iron core, the first matching surface is a plane, and the stator main body iron core is connected with the stator tooth boot. A second matching surface is formed on the stator tooth boot, the first matching surface extends along a straight line extending in the radial direction of the stator core, and the second matching surface is matched with the first matching surface. According to the stator iron core of the utility model, the first matching surface extending along the straight line extending in the radial direction of the stator iron core is formed on the stator main body iron core, and the first matching surface is a plane, so that the processing difficulty of the first matching surface is reduced, and the production difficulty of the stator main body iron core is reduced at the same time; the accurate alignment between the stator tooth boot and the stator main body iron core can be ensured, and the stator tooth boot and the stator main body iron core can be assembled conveniently.

Description

Technical Field

[0001] This utility model relates to the field of vehicle manufacturing technology, and in particular to a stator core, a stator assembly, a motor, a motor assembly, and a vehicle. Background Technology

[0002] Related technologies indicate that Chinese invention patent publication number "CN118017721A" entitled "Yokeless Stator Teeth and Method Thereof Using Soft Magnetic Composite Materials and Oriented Silicon Steel Sheets" discloses a design method for yokeless stator teeth using soft magnetic composite materials and oriented silicon steel sheets. The stator tooth core is formed by stacking several oriented silicon steel sheets radially; the stator tooth shoe is made of soft magnetic composite material. This solves the problem of reduced motor torque caused by increased leakage flux and decreased main magnetic flux in the stator tooth shoe area due to the low saturation magnetic flux density in the shear direction of the oriented silicon steel sheets when using oriented silicon steel sheets as the stator core to increase torque density in yokeless segmented stator axial flux motors. However, this invention uses a keyway fit between the stator tooth shoe and the stator core body, which is difficult to process and requires high precision.

[0003] In short, although the invention effectively improves the torque density of the motor by combining soft magnetic composite materials with oriented silicon steel sheets and solves the problems of increased leakage flux and reduced main magnetic flux caused by the low saturation magnetic flux density in the shear direction of oriented silicon steel sheets in the stator gear shoe area, the keyway fit between the stator gear shoe and the stator core body in its design has certain limitations, is difficult to process, and requires high fitting accuracy, which may increase manufacturing costs and process complexity. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a stator core that is easy to process, requires low precision in fitting, has low production cost, and has low process complexity.

[0005] This utility model also proposes a stator assembly having the above-mentioned stator core.

[0006] This utility model also proposes a motor having the above-mentioned stator assembly.

[0007] This utility model also proposes a motor assembly having the above-mentioned motor.

[0008] This utility model also proposes a vehicle having the above-mentioned motor assembly.

[0009] According to a first aspect of the present invention, a stator core includes multiple stator modules, each stator module including a stator main core and a stator tooth shoe, the stator tooth shoe being connected to the stator main core, a first mating surface being formed on the stator main core, the first mating surface being a plane, a second mating surface being formed on the stator tooth shoe, the first mating surface extending along a straight line extending in the radial direction of the stator core, and the second mating surface being adapted to the first mating surface.

[0010] According to the stator core of this utility model, a first mating surface is formed on the stator main body core, extending in a straight line along the radial direction of the stator core. The first mating surface is planar, which reduces the processing difficulty of the first mating surface and the production difficulty of the stator main body core, improves the production efficiency of the stator module, and ensures the production quality of the stator main body core by reducing the processing difficulty. This also improves the production accuracy of the stator gear shoe and the stator main body core, thereby helping to ensure the precise alignment between the stator gear shoe and the stator main body core, reducing production costs. In this way, the first mating surface and the second mating surface can fit tightly together, reducing air gaps and improving the transmission efficiency of magnetic flux, thereby enhancing the overall efficiency and performance of the motor.

[0011] In some feasible embodiments, the first mating surface is perpendicular to the width direction of the stator body core.

[0012] In some feasible embodiments, the stator main body core has assembly grooves formed at both ends in the axial direction of the stator main body core, and the two adjacent sides of the assembly groove have open openings. The first mating surface is formed on the side wall of the assembly groove, and the second mating surface is formed on the end face of the stator tooth shoe facing the stator main body core. The first mating surface and the second mating surface are in contact.

[0013] In some feasible embodiments, the stator main body core is provided with the stator tooth shoe on at least one side in the tangential direction of the stator main body core, and the stator main body core includes a plurality of stator chips.

[0014] In some feasible embodiments, a plurality of the stator chips are arranged in the radial direction of the stator core, and the first mating surface extends along the direction perpendicular to the arrangement of the stator chips.

[0015] In some feasible embodiments, a plurality of the stator chips are arranged in the width direction of the stator body core, and the first mating surface extends parallel to the arrangement direction of the stator chips.

[0016] In some feasible embodiments, the stator main body core is provided with stator teeth on both sides of the stator main body core in the width direction, and the stator teeth on both sides in the width direction are symmetrically arranged.

[0017] According to a second aspect of the present invention, a stator assembly includes a stator winding and a stator core according to a first aspect of the present invention, wherein the stator winding is disposed on the stator core.

[0018] According to the stator assembly of this utility model, by setting the stator core of the first aspect mentioned above, the same technical effect is achieved. That is, a first mating surface extending in a straight line along the radial direction of the stator core is formed on the stator body core, and the first mating surface is a plane, which reduces the processing difficulty of the first mating surface and the production difficulty of the stator body core, improves the production efficiency of the stator module, and the low processing difficulty can ensure the production quality of the stator body core, improve the production accuracy of the stator tooth shoe and the stator body core, thereby helping to ensure the precise alignment between the stator tooth shoe and the stator body core, reducing production costs. In this way, the first mating surface and the second mating surface can fit tightly together, reduce air gaps, improve the transmission efficiency of magnetic flux, and thus enhance the overall efficiency and performance of the motor.

[0019] The motor according to the third aspect of the present invention includes the stator assembly according to the second aspect of the present invention.

[0020] According to the present invention, the motor, by setting the stator assembly of the second aspect described above, thus has the same technical effect, namely, a first mating surface extending in a straight line along the radial direction of the stator core is formed on the stator main body core, and the first mating surface is planar, which reduces the processing difficulty of the first mating surface, and at the same time reduces the production difficulty of the stator main body core, improves the production efficiency of the stator module, and the low processing difficulty can ensure the production quality of the stator main body core, improve the production accuracy of the stator tooth shoe and the stator main body core, thereby helping to ensure the precise alignment between the stator tooth shoe and the stator main body core, reducing production costs. In this way, the first mating surface and the second mating surface can fit tightly together, reduce air gaps, improve the transmission efficiency of magnetic flux, thereby enhancing the overall efficiency and performance of the motor.

[0021] The motor assembly according to the fourth aspect of the present invention includes the motor according to the third aspect of the present invention.

[0022] According to the motor assembly of this utility model, by setting the motor of the third aspect mentioned above, it has the same technical effect, that is, a first mating surface extending in a straight line along the radial direction of the stator core is formed on the stator main body iron core, and the first mating surface is a plane, which reduces the processing difficulty of the first mating surface, and at the same time reduces the production difficulty of the stator main body iron core, improves the production efficiency of the stator module, and the low processing difficulty can ensure the production quality of the stator main body iron core, improve the production accuracy of the stator tooth shoe and the stator main body iron core, thereby helping to ensure the precise alignment between the stator tooth shoe and the stator main body iron core, reducing production costs. In this way, the first mating surface and the second mating surface can fit tightly together, reduce air gaps, improve the transmission efficiency of magnetic flux, and thus enhance the overall efficiency and performance of the motor.

[0023] The vehicle according to the fifth aspect of the present invention includes a motor assembly according to the fourth aspect of the present invention.

[0024] The vehicle according to this utility model improves the overall performance of the vehicle by providing the motor assembly described in the fourth aspect above.

[0025] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the stator core according to Embodiment 1 of this utility model;

[0027] Figure 2 yes Figure 1 The diagram shown is an assembly schematic of the stator core according to Embodiment 1 of the present invention.

[0028] Figure 3 This is a schematic diagram of the stator core according to Embodiment 2 of this utility model;

[0029] Figure 4 yes Figure 3 The diagram shown is an assembly schematic of the stator core according to Embodiment 2 of the present invention.

[0030] Figure 5 This is a schematic diagram of the stator core according to Embodiment 3 of this utility model;

[0031] Figure 6 yes Figure 5 The diagram shown is an assembly schematic of the stator core according to Embodiment 3 of this utility model;

[0032] Figure 7 This is a schematic diagram of the stator core according to Embodiment 4 of this utility model;

[0033] Figure 8 yes Figure 7 The diagram shown is an assembly schematic of the stator core according to Embodiment 4 of this utility model.

[0034] Figure label:

[0035] 100. Stator core;

[0036] 1. Stator main body iron core; 11. Stator lamination; 12. Assembly slot; 13. First mating surface;

[0037] 2. Stator toothed shoe; 21. Second mating surface. Detailed Implementation

[0038] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0039] The following is for reference. Figures 1-8 Description of a stator core 100 according to a first aspect embodiment of the present invention.

[0040] like Figures 1-8 As shown, the stator core 100 according to the first aspect of the present invention includes: a plurality of stator modules.

[0041] Specifically, each stator module includes a stator main core 1 and a stator gear shoe 2. The stator gear shoe 2 is connected to the stator main core 1. A first mating surface 13 is formed on the stator main core 1. The first mating surface 13 is planar. A second mating surface 21 is formed on the stator gear shoe 2. The first mating surface 13 extends along a straight line in the radial direction of the stator main core 100. The second mating surface 21 is adapted to the first mating surface 13. Thus, the first mating surface 13 is planar, which facilitates manufacturing and reduces the processing difficulty of the first mating surface 13. Furthermore, the first mating surface 13 extends along a straight line in the radial direction of the stator main core 100 and is located in a plane, which facilitates both processing and assembly of the stator gear shoe 2.

[0042] It is understood that the stator core 100 has multiple stator modules, which are connected end to end in a ring. Each stator module includes a stator main core 1 and a stator gear shoe 2. The stator gear shoe 2 is connected to the stator main core 1. A first mating surface 13 is formed on the stator main core 1. The first mating surface 13 is a plane and extends in a straight line along the radial direction. Here, radial refers to the direction radiating outward from the center of the stator core 100. The structure of the first mating surface 13 is simple, which reduces the processing difficulty of the first mating surface 13 and the production difficulty of the stator main core 1, improves the production efficiency of the stator module, and ensures the production quality of the stator main core 1 due to the low processing difficulty, thereby helping to ensure the quality of the stator gear shoe 2. Precise alignment between the stator and the stator core 1; a second mating surface 21 is formed on the stator tooth shoe 2, the shape of which matches the shape of the first mating surface 13. That is, the first mating surface 13 is a plane extending in a straight line in the radial direction, and the second mating surface 21 is also a plane extending in a straight line in the radial direction, so that the first mating surface 13 and the second mating surface 21 can be precisely mated, which facilitates the assembly of the stator tooth shoe 2 and the stator core 1, reduces the production difficulty of the stator module, improves the production accuracy of the stator tooth shoe 2 and the stator core 1, and allows the first mating surface 13 and the second mating surface 21 to fit tightly, reducing air gaps, improving the transmission efficiency of magnetic flux, thereby enhancing the overall efficiency and performance of the motor.

[0043] According to the stator core 100 of this utility model embodiment, a first mating surface 13 extending in a straight line along the radial direction of the stator core 100 is formed on the stator main body core 1. The first mating surface 13 is planar, which reduces the processing difficulty of the first mating surface 13 and the production difficulty of the stator main body core 1, improves the production efficiency of the stator module, and ensures the production quality of the stator main body core 1 by reducing the processing difficulty. It also improves the production accuracy of the stator gear shoe 2 and the stator main body core 1, thereby helping to ensure the precise alignment between the stator gear shoe 2 and the stator main body core 1 and reducing production costs. In this way, the first mating surface 13 and the second mating surface 21 can fit tightly together, reduce the air gap, improve the transmission efficiency of magnetic flux, and thus enhance the overall efficiency and performance of the motor.

[0044] In some embodiments of this utility model, the first mating surface 13 is perpendicular to the width direction of the stator body core 1. Figure 1As shown, it can be understood that the first mating surface 13 extends along the height and radial directions of the stator core 1 and is perpendicular to the width direction of the stator core 1. In other words, the first mating surface 13 extends along the axial and radial directions of the stator core 100 and is perpendicular to the tangential direction of the stator core 100. This simplifies the structure of the first mating surface 13 and reduces the production difficulty of the first mating surface 13. The simple structure of the first mating surface 13 helps to simplify the positioning and alignment steps in the manufacturing and assembly process, and improves the production accuracy and efficiency of the stator gear shoe 2 and the stator core 1.

[0045] In some embodiments of this utility model, the stator main body core 1 has assembly grooves 12 formed at both ends in the axial direction of the stator core 100. The adjacent sides of the assembly grooves 12 have open openings. A first mating surface 13 is formed on the side wall of the assembly groove 12, and a second mating surface 21 is formed on the end face of the stator tooth shoe 2 facing the stator main body core 1. The first mating surface 13 and the second mating surface 21 are in contact. Figure 1 As shown, the assembly groove 12 has a bottom wall and a side wall. The bottom wall extends along the radial and tangential directions of the stator core 100 and is perpendicular to the axial direction of the stator core 100. The side wall extends along the axial and radial directions of the stator core 100 and is perpendicular to the tangential direction of the stator core 100. The other parts of the assembly groove 12 are formed as open openings. The second mating surface 21 is formed on the end face of the stator tooth shoe 2 facing the stator main body core 1. That is, the second mating surface 21 extends along the axial and radial directions of the stator core 100 and is perpendicular to the tangential direction of the stator core 100. The first mating surface 13 fits against the second mating surface 21, ensuring that the stator tooth shoe 2 and the stator main body core 1 can be in close contact, reducing air gaps, improving the stability of mechanical connection, enhancing the structural strength of the stator module, reducing magnetic leakage, improving magnetic flux transmission efficiency, and thus improving the overall performance of the motor.

[0046] In some embodiments of this utility model, the stator main body core 1 is provided with a stator tooth shoe 2 on at least one side in the tangential direction of the stator core 100, and the stator main body core 1 includes a plurality of stator chips 11. It is understood that, referring to... Figure 1 and Figure 5 As shown, the stator core 1 can have a stator tooth shoe 2 on one side in the tangential direction of the stator core 100. Referring to the figure, the stator core 1 can have stator tooth shoes 2 on both sides in the tangential direction of the stator core 100. Thus, the number and position of the stator tooth shoes 2 can be flexibly adjusted according to the application requirements. For example, if a higher torque output is required, the number of stator tooth shoes 2 can be increased. Furthermore, a properly arranged stator tooth shoe 2 helps to disperse mechanical stress, improve the internal heat distribution of the motor, reduce the risk of hot spots, and extend the service life of the motor.

[0047] In one embodiment of this utility model, a plurality of stator chips 11 are arranged in the radial direction of the stator core 100, and the first mating surface 13 extends along the direction perpendicular to the arrangement direction of the stator chips 11. Figures 1-4 As shown, the stator chips 11 are arranged in the radial direction, and the first mating surface 13 extends along the height direction of the stator chips 11 and the arrangement direction of the stator chips 11, and is perpendicular to the width direction of the stator chips 11, that is, the stacking direction of the stator chips 11 is radial stacking.

[0048] In another embodiment of this utility model, a plurality of stator chips 11 are arranged in the width direction of the stator body core 1, and the first mating surface 13 extends parallel to the arrangement direction of the stator chips 11. Figures 5-8 As shown, the stator chip 11 is arranged along the width direction of the stator body core 1, and the first mating surface 13 extends along the width and height directions of the stator chip 11 and is perpendicular to the thickness direction of the stator chip 11, that is, the stacking direction of the stator chip 11 is tangential stacking.

[0049] In some embodiments of this invention, stator core 1 has stator teeth 2 on both sides of its width direction, and the stator teeth 2 on both sides of the width direction are symmetrically arranged. This helps to optimize the distribution of the internal magnetic field of the motor and improve mechanical stability and electrical performance. It is understood that the symmetrical arrangement of the stator teeth 2 on both sides of the width direction of the stator core 1, i.e., the teeth on both sides are identical in position, shape, and number, helps to ensure the balance of the motor during operation, reduces vibration and noise, and the symmetrical arrangement of the stator teeth 2 can more evenly guide and concentrate the magnetic field, thereby reducing magnetic leakage and improving the overall efficiency of the motor.

[0050] Optionally, the stator chip 11 is made of silicon steel sheet or amorphous material, and the stator tooth shoe 2 can be made of the same material as the stator chip 11 (i.e., the stator main body iron core 1), or the stator tooth shoe 2 can be made of soft magnetic composite material. The material of the stator chip 11 includes, but is not limited to, these.

[0051] A stator assembly according to a second aspect of the present invention includes a stator winding and a stator core 100 according to a first aspect of the present invention, wherein the stator winding is disposed on the stator core 100.

[0052] According to the stator assembly of this utility model embodiment, by setting the stator core 100 of the first aspect embodiment, it has the same technical effect, that is, a first mating surface 13 extending in a straight line along the radial direction of the stator core 100 is formed on the stator main body core 1, and the first mating surface 13 is planar, which reduces the processing difficulty of the first mating surface 13, and at the same time reduces the production difficulty of the stator main body core 1, improves the production efficiency of the stator module, and the low processing difficulty can ensure the production quality of the stator main body core 1, improve the production accuracy of the stator gear shoe 2 and the stator main body core 1, thereby helping to ensure the precise alignment between the stator gear shoe 2 and the stator main body core 1, reducing production costs. In this way, the first mating surface 13 and the second mating surface 21 can fit tightly together, reduce air gap, improve the transmission efficiency of magnetic flux, thereby enhancing the overall efficiency and performance of the motor.

[0053] The motor according to a third aspect of the present invention includes a stator assembly according to a second aspect of the present invention.

[0054] According to the embodiment of the present invention, the motor, by providing the stator assembly of the second aspect embodiment described above, thus has the same technical effect. That is, a first mating surface 13 extending in a straight line along the radial direction of the stator core 100 is formed on the stator main body core 1, and the first mating surface 13 is planar, which reduces the processing difficulty of the first mating surface 13, and at the same time reduces the production difficulty of the stator main body core 1, improves the production efficiency of the stator module, and the low processing difficulty can ensure the production quality of the stator main body core 1, improve the production accuracy of the stator gear shoe 2 and the stator main body core 1, thereby helping to ensure the precise alignment between the stator gear shoe 2 and the stator main body core 1, reducing production costs. In this way, the first mating surface 13 and the second mating surface 21 can fit tightly together, reduce air gaps, improve the transmission efficiency of magnetic flux, thereby enhancing the overall efficiency and performance of the motor.

[0055] Here, the motor can be an axial motor.

[0056] The motor assembly according to a fourth aspect of the present invention includes the motor according to a third aspect of the present invention.

[0057] According to the motor assembly of the present utility model embodiment, by providing the motor of the third aspect embodiment described above, it has the same technical effect, that is, a first mating surface 13 extending in a straight line along the radial direction of the stator core 100 is formed on the stator main body core 1, and the first mating surface 13 is planar, which reduces the processing difficulty of the first mating surface 13, and at the same time reduces the production difficulty of the stator main body core 1, improves the production efficiency of the stator module, and the low processing difficulty can ensure the production quality of the stator main body core 1, improve the production accuracy of the stator gear shoe 2 and the stator main body core 1, thereby helping to ensure the precise alignment between the stator gear shoe 2 and the stator main body core 1, reducing production costs. In this way, the first mating surface 13 and the second mating surface 21 can fit tightly together, reduce air gaps, improve the transmission efficiency of magnetic flux, thereby enhancing the overall efficiency and performance of the motor.

[0058] The vehicle according to a fifth aspect of the present invention includes a motor assembly according to a fourth aspect of the present invention.

[0059] The vehicle according to the present invention improves the overall performance of the vehicle by providing the motor assembly of the fourth aspect embodiment described above.

[0060] The following will refer to Figures 1-8 The stator core 100 according to four specific embodiments of the present invention is described.

[0061] Example 1,

[0062] Reference Figures 1-2 The stator module shown includes a plurality of stator chips 11 arranged in the radial direction of the stator core 100 (i.e., the stator chips 11 are stacked radially).

[0063] Specifically, such as Figures 1-2 As shown, stator core 1 has stator tooth shoes 2 on both sides of the stator core 100 in the tangential direction, that is, there are four stator tooth shoes 2, which are arranged in parallel. The two stator tooth shoes 2 located at the same end of the stator core 1 in the axial direction are located in the same plane. Each stator tooth shoe 2 has a second mating surface 21. The second mating surface 21 extends along the axial and radial directions of the stator core 100 and is perpendicular to the tangential direction of the stator core 100. On both sides of the same end of the stator core 1 in the axial direction, there are assembly grooves 12. The assembly groove 12 has a bottom wall and a side wall. The bottom wall extends along the radial and tangential directions of the stator core 100 and is perpendicular to the axial direction of the stator core 100. The side wall extends along the axial and radial directions of the stator core 100 and is perpendicular to the tangential direction of the stator core 100. The assembly groove 12 is open at other positions. The first mating surface 13 is formed on the bottom wall.

[0064] Both the first mating surface 13 and the second mating surface 21 are planar and extend in a straight line along the radial direction of the stator core 100. This reduces the processing difficulty of the first mating surface 13 and the production difficulty of the stator main body core 1, improves the production efficiency of the stator module, and ensures the production quality of the stator main body core 1 by reducing the processing difficulty. This also improves the production accuracy of the stator gear shoe 2 and the stator main body core 1, thereby helping to ensure the precise alignment between the stator gear shoe 2 and the stator main body core 1, reducing production costs and increasing production speed.

[0065] Example 2,

[0066] like Figures 3-4 As shown, the structure of this embodiment is roughly the same as that of Embodiment 1, with the same components using the same reference numerals. The only difference is that the stacking direction of the stator chip 11 in Embodiment 1 is radial stacking, while the stacking direction of the stator chip 11 in this Embodiment 2 is tangential stacking.

[0067] Reference Figures 3-4 The stator module includes multiple stator chips 11 arranged in the tangential direction of the stator core 100 (i.e., the stacking direction of the stator chips 11 is tangential stacking).

[0068] Specifically, the stator main body core 1 has stator tooth shoes 2 on both sides of the stator core 100 in the tangential direction, that is, there are four stator tooth shoes 2, which are arranged in parallel. The two stator tooth shoes 2 located at the same end in the axial direction of the stator main body core 1 are located in the same plane. Each stator tooth shoe 2 has a second mating surface 21, which extends along the axial and radial directions of the stator core 100 and is perpendicular to the tangential direction of the stator core 100. On both sides of the same end in the axial direction of the stator main body core 1, there are assembly grooves 12. The assembly groove 12 has a bottom wall and a side wall. The bottom wall extends along the radial and tangential directions of the stator core 100 and is perpendicular to the axial direction of the stator core 100. The side wall extends along the axial and radial directions of the stator core 100 and is perpendicular to the tangential direction of the stator core 100. The assembly groove 12 is open at other positions. The first mating surface 13 is formed on the bottom wall.

[0069] Both the first mating surface 13 and the second mating surface 21 are planar and extend in a straight line along the radial direction of the stator core 100. This reduces the processing difficulty of the first mating surface 13 and the production difficulty of the stator main body core 1, improves the production efficiency of the stator module, and ensures the production quality of the stator main body core 1 by reducing the processing difficulty. This also improves the production accuracy of the stator gear shoe 2 and the stator main body core 1, thereby helping to ensure the precise alignment between the stator gear shoe 2 and the stator main body core 1, reducing production costs and increasing production speed.

[0070] Example 3,

[0071] like Figures 5-6 As shown, the structure of this embodiment is roughly the same as that of Embodiment 1, with the same components using the same reference numerals. The only difference is that in Embodiment 1, the stator teeth are located on both sides of the stator body core 1 in the tangential direction of the stator core 100, while in this Embodiment 2, the stator tooth shoe 2 is located on one side of the stator body core 1 in the tangential direction of the stator core 100.

[0072] Reference Figures 5-6 The stator module shown includes a plurality of stator chips 11 arranged in the radial direction of the stator core 100 (i.e., the stator chips 11 are stacked radially).

[0073] Specifically, the stator main body core 1 has a stator tooth shoe 2 on one side of the stator core 100 in the tangential direction. That is, there are two stator tooth shoes 2, which are arranged in parallel. Each stator tooth shoe 2 has a second mating surface 21. The second mating surface 21 extends along the axial and radial directions of the stator core 100 and is perpendicular to the tangential direction of the stator core 100. At the same axial ends on the same side of the thickness direction of the stator main body core 1, there are assembly grooves 12. The assembly groove 12 has a bottom wall and a side wall. The bottom wall extends along the radial and tangential directions of the stator core 100 and is perpendicular to the axial direction of the stator core 100. The side wall extends along the axial and radial directions of the stator core 100 and is perpendicular to the tangential direction of the stator core 100. The other positions of the assembly groove 12 are all open. The first mating surface 13 is formed on the bottom wall.

[0074] Both the first mating surface 13 and the second mating surface 21 are planar and extend in a straight line along the radial direction of the stator core 100. This reduces the processing difficulty of the first mating surface 13 and the production difficulty of the stator main body core 1, improves the production efficiency of the stator module, and ensures the production quality of the stator main body core 1 by reducing the processing difficulty. This also improves the production accuracy of the stator gear shoe 2 and the stator main body core 1, thereby helping to ensure the precise alignment between the stator gear shoe 2 and the stator main body core 1, reducing production costs and increasing production speed.

[0075] Example 4,

[0076] like Figures 7-8 As shown, the structure of this embodiment is roughly the same as that of embodiment three, with the same components using the same reference numerals. The only difference is that the stacking direction of the stator chip 11 in embodiment three is radial stacking, while the stacking direction of the stator chip 11 in this embodiment four is tangential stacking.

[0077] Reference Figures 7-8The stator module shown includes a plurality of stator chips 11 arranged in the tangential direction of the stator core 100 (i.e., the stacking direction of the stator chips 11 is tangential stacking).

[0078] Specifically, the stator main body core 1 has a stator tooth shoe 2 on one side of the stator core 100 in the tangential direction. That is, there are two stator tooth shoes 2, which are arranged in parallel. Each stator tooth shoe 2 has a second mating surface 21. The second mating surface 21 extends along the axial and radial directions of the stator core 100 and is perpendicular to the tangential direction of the stator core 100. At the same axial ends on the same side of the thickness direction of the stator main body core 1, there are assembly grooves 12. The assembly groove 12 has a bottom wall and a side wall. The bottom wall extends along the radial and tangential directions of the stator core 100 and is perpendicular to the axial direction of the stator core 100. The side wall extends along the axial and radial directions of the stator core 100 and is perpendicular to the tangential direction of the stator core 100. The other positions of the assembly groove 12 are all open. The first mating surface 13 is formed on the bottom wall.

[0079] Both the first mating surface 13 and the second mating surface 21 are planar and extend in a straight line along the radial direction of the stator core 100. This reduces the processing difficulty of the first mating surface 13 and the production difficulty of the stator main body core 1, improves the production efficiency of the stator module, and ensures the production quality of the stator main body core 1 by reducing the processing difficulty. This also improves the production accuracy of the stator gear shoe 2 and the stator main body core 1, thereby helping to ensure the precise alignment between the stator gear shoe 2 and the stator main body core 1, reducing production costs and increasing production speed.

[0080] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0081] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0082] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0083] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0084] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A stator core (100), characterized in that, The system includes multiple stator modules, each stator module including a stator main core (1) and a stator gear shoe (2). The stator gear shoe (2) is connected to the stator main core (1). A first mating surface (13) is formed on the stator main core (1). The first mating surface (13) is a plane. A second mating surface (21) is formed on the stator gear shoe (2). The first mating surface (13) extends along a straight line extending in the radial direction of the stator main core (100). The second mating surface (21) is adapted to the stator main core (100).

2. The stator core (100) according to claim 1, characterized in that, The first mating surface (13) is perpendicular to the width direction of the stator body core (1).

3. The stator core (100) according to claim 2, characterized in that, The stator main body core (1) has assembly grooves (12) formed at both ends of the stator core (100) in the axial direction. The two adjacent sides of the assembly groove (12) have open openings. The first mating surface (13) is formed on the side wall of the assembly groove (12), and the second mating surface (21) is formed on the end face of the stator tooth shoe (2) facing the stator main body core (1). The first mating surface (13) and the second mating surface (21) are in contact.

4. The stator core (100) according to claim 3, characterized in that, The stator main body core (1) has the stator tooth shoe (2) provided on at least one side of the stator core (100) in the tangential direction, and the stator main body core (1) includes a plurality of stator chips (11).

5. The stator core (100) according to claim 4, characterized in that, Multiple stator chips (11) are arranged in the radial direction of the stator core (100), and the first mating surface (13) extends in a direction perpendicular to the arrangement direction of the stator chips (11).

6. The stator core (100) according to claim 4, characterized in that, Multiple stator chips (11) are arranged in the width direction of the stator body core (1), and the first mating surface (13) extends in a direction parallel to the arrangement of the stator chips (11).

7. The stator core (100) according to claim 4, characterized in that, The stator main body core (1) is provided with stator tooth shoes (2) on both sides of the width direction of the stator main body core (1), and the stator tooth shoes (2) on both sides of the width direction are symmetrically arranged.

8. A stator assembly, characterized in that, include: The stator winding and the stator core (100) according to any one of claims 1-7, wherein the stator winding is wound on the stator core (100).

9. An electric motor, characterized in that, Includes the stator assembly as described in claim 8.

10. A motor assembly, characterized in that, Includes the motor as described in claim 9.

11. A vehicle, characterized in that, Includes the motor assembly as described in claim 10.

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