Stator core assembly, stator assembly, linear motor, suspension device and vehicle

Abstract

The present invention discloses a stator core assembly, a stator assembly, a linear motor, a suspension device and a vehicle. The stator core assembly of the linear motor comprises: a stator core, along the axial direction of the stator core, at least one side of the stator core is formed with a slot structure, and the slot structure is used to install the winding coil of the linear motor. Thus, at least one side of the stator core is formed with a slot structure, and the winding coil can be installed in the slot structure, so that the winding coil and the stator core are stacked, and the stator assembly can be formed by stacking a plurality of stator core assemblies, which is convenient for processing, and the coil in the stator core assembly can be wound first and then assembled, which is convenient for winding.

Description

Technical Field

[0001] The present invention relates to the technical field of linear motors, and in particular to a stator core assembly, a stator assembly, a linear motor, a suspension device and a vehicle. Background Art

[0002] In the related art, the existing linear motor includes a stator assembly, and the stator assembly includes a stator core provided with a plurality of grooves for winding coils. The existing stator core winding is complicated and difficult to process. 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 purpose of the present invention is to provide a stator core assembly of a linear motor, wherein the stator core assembly and the winding coil are stacked, and the stator assembly can be formed by stacking a plurality of stator core assemblies, which is convenient to process, and the coils in the stator core assembly can be wound first and then assembled, which is convenient for winding.

[0004] The present invention further provides a stator assembly of a linear motor.

[0005] The present invention further proposes a linear motor.

[0006] The present invention further provides a suspension device.

[0007] The present invention further provides a vehicle.

[0008] The stator core assembly of the linear motor according to the present invention comprises:

[0009] A stator core, wherein a slot structure is formed on at least one side of the stator core along the axial direction of the stator core, and the slot structure is used to install the winding coil of the linear motor.

[0010] According to the stator core assembly of the linear motor of the present invention, the stator assembly can be formed by stacking a plurality of stator core assemblies, which is convenient to process, and the coils in the stator core assembly can be wound first and then assembled, which is convenient for winding.

[0011] In some examples of the present invention, the slot structure is formed on both sides of the stator core along the axial direction of the stator core.

[0012] In some examples of the present invention, the stator core includes: a stator body and an outer edge portion, the outer edge portion is arranged on the outer peripheral wall of the stator body, and along the axial direction of the stator core, both sides of the outer edge portion protrude from the stator body to form the slot structure on both sides of the stator core.

[0013] In some examples of the present invention, a central hole is formed on the stator body, and a limiting portion is provided on an inner wall of the central hole.

[0014] In some examples of the present invention, along the axial direction of the central hole, the limiting portion protrudes from the stator body.

[0015] In some examples of the present invention, the stator core of the linear motor further includes: a stator insulation frame, the stator insulation frame is used to install the winding coil, and the stator insulation frame is arranged in the slot structure.

[0016] In some examples of the present invention, the stator insulation skeleton is stacked with the stator core, the circumferential edge of the stator core has a notch structure, the circumferential edge of the stator insulation skeleton has a wiring notch, and along the axial direction of the stator core, the wiring notch corresponds to the notch structure.

[0017] In some examples of the present invention, along the radial direction of the stator core, the wiring gap corresponds to the gap structure.

[0018] In some examples of the present invention, the stator insulation skeleton includes: a skeleton body, the skeleton body is formed with the wiring gap, and along the axial direction of the stator core, the side of the skeleton body away from the stator core is formed with an installation groove for installing the winding coil, and the installation groove is connected to the wiring gap.

[0019] In some examples of the present invention, a wiring groove is formed on the bottom wall of the installation groove, and the wiring notch and the installation groove are both connected to the wiring groove.

[0020] In some examples of the present invention, the bottom wall of the slot structure has an assembly groove, and a boss structure is formed on the surface of the skeleton body facing the stator core, and the boss structure is assembled in the assembly groove.

[0021] In some examples of the present invention, along the axial direction of the stator core, the skeleton body protrudes toward the stator core to form the boss structure and the wiring groove.

[0022] In some examples of the present invention, the stator insulation frame further includes: an insulating portion, the insulating portion is arranged at the outer edge of the frame body, and the wiring notch is arranged on the insulating portion.

[0023] In some examples of the present invention, when the stator insulation skeleton is assembled in the slot structure, the circumferential edge of the stator insulation skeleton extends out of the corresponding slot structure.

[0024] In some examples of the present invention, there are multiple wiring gaps and multiple gap structures, and the multiple wiring gaps and the multiple gap structures correspond one to one.

[0025] In some examples of the present invention, the plurality of connection gaps and the plurality of gap structures are evenly arranged along the circumference of the stator core.

[0026] In some examples of the present invention, the stator insulation skeleton has an assembly hole, and along the axial direction of the central hole of the stator body, the inner edge of the stator insulation skeleton extends out of the slot structure.

[0027] In some examples of the present invention, there are multiple stator cores, and the multiple stator cores are stacked in sequence along the axial direction of the stator core.

[0028] The stator assembly of the linear motor according to the present invention includes an end stator core assembly and a middle stator core assembly. The middle stator core assembly is arranged between the end stator core assemblies. At least one of the end stator core assembly and the middle stator core assembly includes the above-mentioned stator core assembly.

[0029] In some examples of the present invention, the slot structure is formed on one side of the stator core of the end stator core assembly, and the slot structure is formed on both sides of the stator core of the middle stator core assembly.

[0030] In some examples of the present invention, an insulating member is provided between the winding coils of two adjacent stator cores.

[0031] The linear motor according to the present invention comprises the above-mentioned stator assembly.

[0032] The suspension device according to the present invention includes the above-mentioned linear motor.

[0033] A vehicle according to the present invention includes the above-mentioned suspension device.

[0034] 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

[0035] 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:

[0036] Figure 1 is a schematic diagram of a suspension device according to an embodiment of the present invention;

[0037] Figure 2 is a schematic diagram of the assembly of a stator assembly and a winding coil according to an embodiment of the present invention;

[0038] Figure 3 is a cross-sectional view of a stator assembly and a winding coil after assembly according to an embodiment of the present invention;

[0039] Figure 4 is a schematic diagram of a middle stator core of a stator assembly according to an embodiment of the present invention;

[0040] Figure 5 is a schematic diagram of a winding coil according to an embodiment of the present invention;

[0041] Figure 6 is a schematic diagram of assembling a middle stator core and winding coils according to an embodiment of the present invention;

[0042] Figure 7 is an assembly schematic diagram of a stator assembly according to an embodiment of the present invention;

[0043] Figure 8 yes Figure 7 Enlarged view of point A in the middle;

[0044] Fig. 9 is a three-dimensional diagram of a stator insulation frame according to an embodiment of the present invention;

[0045] Fig.10 is a top view of a stator insulation frame according to an embodiment of the present invention;

[0046] Fig.11 is a three-dimensional view from another angle of the stator insulation frame according to an embodiment of the present invention;

[0047] Fig.12 is a side view of a stator insulation frame according to an embodiment of the present invention;

[0048] Fig.13 It is a schematic diagram of assembling a stator insulation frame and a stator core according to an embodiment of the present invention.

[0049] Reference numerals:

[0050] Stator assembly 400;

[0051] stator core 200; notch structure 201; first sub-notch structure 2011; second sub-notch structure 2012; stator body 202; outer edge portion 203; assembly groove 205; groove structure 206; stopper 207; center hole 208;

[0052] Stator insulation frame 100; wiring notch 11; mounting groove 14; wiring groove 15; boss structure 16; assembly hole 17; limiting wall 18; mounting step 19; frame body 10;

[0053] Insulation portion 20; wiring space 21; sub-outer edge portion 23;

[0054] Incision structure 305;

[0055] The middle stator core 40; the end stator core 50;

[0056] Winding coil 300;

[0057] Suspension device 500. DETAILED DESCRIPTION

[0058] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0059] Reference below Figure 1-Figure 13 The stator assembly 400 of the linear motor according to the embodiment of the present invention is described. The linear motor may be a cylindrical three-phase permanent magnet synchronous linear motor. The linear motor includes a stator core 200, a stator insulation frame 100 and a winding coil 300. The stator insulation frame 100 is installed on the stator core 200 of the linear motor. The winding coil 300 of the linear motor is arranged on the stator insulation frame 100. The stator insulation frame 100 is assembled with the corresponding stator core 200 in a stacked manner. When the stator insulation frame 100 and the stator core 200 are assembled, the stator insulation frame 100 is stacked with the stator core 200.

[0060] like Figure 3 , Figure 4 and Figure 8 As shown, the stator core assembly according to an embodiment of the present invention includes: a stator core 200, at least one side of the stator core 200 is formed with a slot structure 206 along the axial direction of the stator core 200, and the slot structure 206 is used to install the winding coil 300 of the linear motor.

[0061] The stator assembly 400 may include an end stator core assembly 50 and a middle stator core assembly 40. The end stator core assembly 50 and the middle stator core assembly 40 are stacked along the axial direction of the stator assembly 400. There may be two end stator core assemblies 50, and the middle stator core assembly 40 is located between the two end stator core assemblies 50. At least one of the end stator core assembly 50 and the middle stator core assembly 40 may include the stator core assembly of the above-mentioned embodiment. The axial direction of the stator assembly 400 is the same as the axial direction of the stator core 200. When the stator assembly 400 is stacked along the axial direction of the stator core 200, the stator core assembly 400 may be stacked along the axial direction of the stator core 200. Figure 3 When placed in the middle direction, the axial direction of the stator core 200 is Figure 3 The Z direction in .

[0062] Along the axial direction of the stator core 200, a slot structure 206 is formed on at least one side of the stator core 200, that is, a slot structure 206 is formed on one side of the stator core 200, or a slot structure 206 is formed on both sides of the stator core 200, and the winding coil 300 is installed in the slot structure 206. By forming the slot structure 206 on at least one side of the stator core 200, a winding coil 300 can be installed in each slot structure 206, so that the winding coil 300 and the stator core 200 are stacked, and one stator core 200 is installed with at least one layer of winding coil 300, thereby improving the space utilization rate and slot fill rate of the stator core 200, and further improving the space utilization rate and slot fill rate of the stator assembly 400.

[0063] Thus, a slot structure 206 is formed on at least one side of the stator core 200, and a winding coil 300 can be installed in each slot structure 206, so that the winding coil 300 and the stator core 200 are stacked, and a stator core 200 is installed with at least one layer of winding coil 300. Compared with an integral core, the stator core is convenient for winding, and the winding is no longer limited to the upper and lower side walls of the groove in the stator core in the prior art, which can improve the space utilization and slot fill rate of the stator core 200 to a certain extent, thereby improving the space utilization and slot fill rate of the stator assembly 400.

[0064] In some embodiments of the present invention, Figure 3 , Figure 4 and Figure 8 As shown, slot structures 206 are formed on both sides of the stator core 200 along the axial direction of the stator core 200. The stator core 200 may be formed with two slot structures 206, and the two slot structures 206 are respectively located on both sides of the stator core 200 along the axial direction of the stator core 200. The slot structures 206 on both sides of the stator core 200 are used to install the winding coils 300 of the linear motor, and the winding coils 300 can be installed in the slot structures 206 through the stator insulation frame 100. By forming the slot structures 206 on both sides of the stator core 200, the winding coils 300 can be installed in each slot structure 206, so as to achieve the effect of installing multiple layers of winding coils 300 on one stator core 200, thereby further improving the space utilization rate and slot fill rate of the stator core 200, and further improving the space utilization rate and slot fill rate of the stator assembly 400.

[0065] In some embodiments of the present invention, Figure 4 and Figure 8 As shown, the stator core 200 may include: a stator body 202 and an outer edge portion 203, wherein the outer edge portion 203 is arranged on the outer peripheral wall of the stator body 202, and along the axial direction of the stator core 200, both sides of the outer edge portion 203 protrude from the stator body 202 to form a slot structure 206 on both sides of the stator core 200.

[0066] The stator body 202 may be a plate-like structure, and the stator body 202 and the outer edge 203 of the stator core 200 may be detachably connected, or the stator body 202 and the outer edge 203 of the stator core 200 may be integrally formed. The outer edge 203 is arranged around the stator body 202 along the circumference of the stator body 202, and along the axial direction of the stator core 200, both sides of the outer edge 203 of the stator core 200 protrude from the stator body 202, and the stator body 202 and the outer edge 203 of the stator core 200 jointly define two slot structures 206, and the slot structures 206 may be formed on both sides of the stator core 200, so that the structural design of the stator core 200 is reasonable.

[0067] In some embodiments of the present invention, Figure 4 and Figure 8 As shown, along the axial direction of the stator core 200 , the stator body 202 is located in the middle of the outer edge portion 203 .

[0068] Among them, along the axial direction of the stator core 200, the stator body 202 of the stator core 200 is assembled at the middle position of the outer edge part 203, for example: the stator body 202 is assembled at the middle position of the outer edge part 203 along the axial direction of the stator core 200. When the outer edge part 203 is installed on the stator body 202, such a setting is conducive to forming a slot structure 206 with the same structural shape on both sides of the stator core 200, thereby improving the structural consistency of the stator core 200.

[0069] In some embodiments of the present invention, Figure 4 As shown, a center hole 208 is formed on the stator body 202 , and a limiting portion 207 is provided on the inner wall of the center hole 208 . It can be understood that the setting of the limiting portion 207 can also form a slot structure between the stator body 202 and the limiting portion 207 .

[0070] Among them, the center hole 208 passes through the stator body 202 along the axial direction of the stator core 200. Along the radial direction of the stator core 200, the inner wall of the center hole 208 is the inner peripheral edge of the stator body 202, that is, the inner wall of the center hole 208 is the inner periphery of the stator body 202, and the outer peripheral wall of the stator body 202 is the outer periphery of the stator body 202. The limiting portion 207 is arranged on the inner wall of the center hole 208. The limiting portion 207 can be arranged around the center hole 208, and the outer edge portion 203 is arranged on the outer peripheral wall of the stator body 202. Along the radial direction of the stator core 200, the limiting portion 207 is spaced apart from the outer edge portion 203, so that the limiting portion 207, the stator body 202 and the outer edge portion 203 jointly define the slot structure 206, and the slot structure 206 is located between the outer edge portion 203 and the limiting portion 207.

[0071] In some embodiments of the present invention, Figure 4 As shown, along the axial direction of the center hole 208, the limiting portion 207 protrudes from the stator body 202. In particular, along the axial direction of the center hole 208, the limiting portion 207 protrudes from at least one side of the stator body 202. When the limiting portion 207 protrudes from one side of the stator body 202, a slot structure 206 is formed on one side of the stator core 200. When the limiting portion 207 protrudes from both sides of the stator body 202, slot structures 206 are formed on both sides of the stator core 200. This application takes the protrusion from both sides of the stator body 202 as an example for description. Along the axial direction of the center hole 208, the limiting portion 207 protrudes from the stator body 202, so as to achieve the effect of forming the slot structure 206 on both sides of the stator core 200.

[0072] In some embodiments of the present invention, Figure 6-Figure 8 As shown, the stator core assembly may further include: a stator insulation frame 100 (the stator insulation frame 100 in the above embodiment), the stator insulation frame 100 is used to install the winding coil 300, and the stator insulation frame 100 is arranged in the slot structure 206. Among them, a stator insulation frame 100 may be arranged in each slot structure 206, and the stator insulation frame 100 is constructed as an insulating part, for example: the stator insulation frame 100 is a plastic part, etc., a stator insulation frame 100 is arranged in each slot structure 206 of the stator core 200, and the winding coil 300 is installed on the stator insulation frame 100, and the stator insulation frame 100 can separate the winding coil 300 and the stator core 200 to achieve an insulation effect.

[0073] In some embodiments of the present invention, Figure 6-Figure 8 As shown, the stator insulation frame 100 and the stator core 200 are stacked, the circumferential edge of the stator core 200 has a notch structure 201, and the circumferential edge of the stator insulation frame 100 has a wiring notch 11. Along the axial direction of the stator core 200, the wiring notch 11 corresponds to the notch structure 201.

[0074] Among them, the stator insulation frame 100 and the stator core 200 are stacked, the circumferential edge of the stator core 200 has a notch structure 201, and the circumferential edge of the stator insulation frame 100 has a wiring notch 11. In other words, along the radial direction of the stator insulation frame 100, the edge of the stator insulation frame 100 has a wiring notch 11, and the wiring notch 11 penetrates the stator insulation frame 100 along the axial direction of the stator core 200. After the stator insulation frame 100 and the stator core 200 are stacked and assembled, along the axial direction of the stator core 200, the wiring notch 11 and the notch structure 201 are correspondingly arranged, and the orthographic projection of the wiring notch 11 and the orthographic projection of the notch structure 201 have an overlapping area. As an example, along the axial direction of the stator core 200, the orthographic projection of the wiring notch 11 is located within the orthographic projection range of the notch structure 201. Or along the axial direction of the stator core 200, the orthographic projection of the wiring notch 11 completely overlaps with the orthographic projection of the notch structure 201.

[0075] Specifically, along the axial direction of the stator core 200, a stator insulation frame 100 is respectively arranged on both sides of the stator core 200, and each stator insulation frame 100 is provided with a winding coil 300. The circumferential edge of the stator insulation frame 100 has a wiring notch 11, and the circumferential edge of the stator core 200 has a notch structure 201. Along the axial direction of the stator core 200, the wiring notch 11 and the notch structure 201 are arranged correspondingly. When the two winding coils 300 located on both sides of the stator core 200 are connected in series, the lead ends of the two winding coils 300 extend into the wiring notch 11 of one stator insulation frame 100, or the lead ends of the two winding coils 300 extend between the two wiring notches 11 of the two stator insulation frames 100, and the lead ends of the winding coils 300 are located at the notch structure 201 of the stator core 200, and then the lead ends of the two winding coils 300 are connected, for example: welding connection. By connecting two winding coils 300 in series at the wiring notch 11, the winding coils 300 are connected in series on the circumferential outside of the stator insulation frame 100, which can increase the wiring operation space, facilitate the wiring between the winding coils 300, facilitate welding and wiring between the winding coils 300, and facilitate operation, thereby helping to improve the production efficiency of the linear motor.

[0076] Thus, by setting the wiring notch 11 and the notch structure 201, it is possible to perform series wiring at the wiring notch 11 and the notch structure 201, so that the winding coil 300 is connected in series outside the circumference of the stator insulation frame 100. Compared with the prior art, there is a larger operating space for wiring, which is convenient for wiring between the winding coils 300, thereby helping to improve the production efficiency of the linear motor. In addition, the stator insulation frame 100 of the present application has a simple structure and is easy to process, which is conducive to mass production. Moreover, the processing technology of the stator insulation frame 100 of the present application is simple, which is conducive to improving production efficiency. At the same time, the stator insulation frame 100 of the present application occupies a small space.

[0077] In some embodiments of the present invention, Figure 6-Figure 8 As shown, along the radial direction of the stator core 200 , the connection gap 11 corresponds to the gap structure 201 .

[0078] Among them, a first sub-gap structure 2011 is formed on the circumferential edge of the stator body 202, and the outer edge portion 203 includes a plurality of sub-outer edge portions 23, and the plurality of sub-outer edge portions 23 are arranged in sequence along the circumference of the stator body 202, and the plurality of sub-outer edge portions 23 are arranged around the stator body 202 along the circumference of the stator body 202, and two adjacent sub-outer edge portions 23 are spaced apart to form a second sub-gap structure 2012 between the two adjacent sub-outer edge portions 23, and the second sub-gap structure 2012 is arranged corresponding to the first sub-gap structure 2011, and the first sub-gap structure 2011 and the second sub-gap structure 2012 are connected, and the first sub-gap structure 2011 and the second sub-gap structure 2012 are constructed as a gap structure 201.

[0079] After the stator insulation frame 100 and the stator core 200 are stacked and assembled, the wiring notch 11 and the second sub-notch structure 2012 are correspondingly arranged along the radial direction of the stator core 200, and the orthographic projection of the wiring notch 11 and the orthographic projection of the second sub-notch structure 2012 have an overlapping area along the radial direction of the stator insulation frame 100, and the orthographic projection of the wiring notch 11 and the orthographic projection of the first sub-notch structure 2011 have an overlapping area along the axial direction of the stator insulation frame 100. By arranging the wiring notch 11 and the notch structure 201 along the radial direction of the stator assembly 400 in correspondence, after the winding coil 300 is installed on the stator insulation frame 100, it is convenient for the lead end of the winding coil 300 to extend into the wiring notch 11, and it is also convenient for the lead end of the winding coil 300 to extend between the two wiring notches 11 of the two stator insulation frames 100.

[0080] In some embodiments of the present invention, Fig. 9 and Fig.10As shown, the stator insulation skeleton 100 may include: a skeleton body 10, the skeleton body 10 is formed with a wiring gap 11, and along the axial direction of the stator core 200, the side of the skeleton body 10 away from the stator core 200 is formed with an installation groove 14 for installing the winding coil 300, and the installation groove 14 is connected to the wiring gap 11.

[0081] Among them, along the axial direction of the stator core 200, after the stator insulation frame 100 is installed on the stator core 200, a mounting groove 14 recessed toward the frame body 10 is formed on the side of the frame body 10 away from the stator core 200, and the mounting groove 14 is used to install the winding coil 300. The winding coil 300 is assembled in the mounting groove 14. The winding coil 300 can be assembled in the mounting groove 14 by winding. The mounting groove 14 can limit the winding coil 300 and reduce the risk of shaking of the winding coil 300. The mounting groove 14 is connected with the wiring gap 11, so that the lead end of the winding coil 300 can be extended into the wiring gap 11.

[0082] In some embodiments of the present invention, Fig. 9 and Fig.10 As shown, the bottom wall of the mounting groove 14 is formed with a wiring groove 15, and the wiring notch 11 and the mounting groove 14 are both connected to the wiring groove 15. The wiring groove 15 is formed on the bottom wall of the mounting groove 14, and the wiring groove 15 can be a strip structure, one end of the wiring groove 15 is connected to the wiring notch 11, and the wiring groove 15 is open toward the end of the mounting groove 14 to communicate with the mounting groove 14. The winding coil 300 is assembled in the mounting groove 14, and the lead end of the winding coil 300 is assembled in the wiring groove 15. The lead end of the winding coil 300 extends into the wiring notch 11 along the wiring groove 15. The wiring groove 15 has a guiding and positioning function for the lead end of the winding coil 300, thereby facilitating the wiring of the lead end of the winding coil 300.

[0083] In some specific embodiments of the present invention, Fig. 9 and Fig.10 As shown, the wiring grooves 15 are arranged radially along the stator insulation frame 100, the winding coil 300 is assembled in the mounting groove 14, and the lead end of the winding coil 300 is assembled in the wiring grooves 15. The wiring grooves 15 are arranged radially along the stator insulation frame 100, so that the lead end of the winding coil 300 can be extended into the wiring gap 11 along the wiring grooves 15, thereby making it easier to route the lead end of the winding coil 300.

[0084] In some embodiments of the present invention, Figure 4 , Fig. 9 , Fig.10 and Fig.11 As shown, the bottom wall of the slot structure 206 has an assembly slot 205 , and a boss structure 16 is formed on the surface of the skeleton body 10 facing the stator core 200 , and the boss structure 16 is assembled in the assembly slot 205 .

[0085] Among them, after the stator insulation frame 100 is installed on the stator core 200, a boss structure 16 is formed on the surface of the frame body 10 facing the stator core 200 along the axial direction of the stator core 200, and the bottom wall of the groove structure 206 has an assembly groove 205. The boss structure 16 is assembled in the assembly groove 205. The boss structure 16 can be embedded in the assembly groove 205 of the stator core 200. The boss structure 16 is limited and matched with the inner wall of the assembly groove 205, so that the stator core 200 and the stator insulation frame 100 are more firm and reliable. In addition, the boss structure 16 is embedded in the assembly groove 205 of the stator core 200, which is beneficial to improve the space utilization and reduce the occupied volume of parts, thereby reducing the volume of the stator insulation frame 100.

[0086] In some specific embodiments of the present invention, Fig. 9 and Fig.11 As shown, along the axial direction of the stator core 200, the skeleton body 10 protrudes toward the direction of the stator core 200 to form a boss structure 16 and a wiring groove 15. Among them, along the axial direction of the stator insulation skeleton 100, that is, along the axial direction of the stator core 200, the boss structure 16 and the wiring groove 15 are arranged correspondingly. The boss structure 16 can be formed by the bottom wall of the mounting groove 14 being recessed toward the stator core 200, so that the boss structure 16 is formed on the side of the skeleton body 10 facing the stator core 200, and the wiring groove 15 is formed on the side of the skeleton body 10 away from the stator core 200, so as to achieve the arrangement effect of the boss structure 16 and the wiring groove 15. The boss structure 16 is embedded in the assembly groove 205 of the stator core 200, which greatly improves the space utilization rate and further reduces the occupied volume of the parts, so that the volume of the stator insulation skeleton 100 can be reduced. The boss structure 16 and the wiring groove 15 can be in the same place, thereby reducing the processing difficulty.

[0087] In some specific embodiments of the present invention, Figure 8 and Fig.11 As shown, the stator insulation frame 100 may further include: an insulation portion 20 , the insulation portion 20 is arranged on the outer edge of the frame body 10 , and the wiring notch 11 is arranged on the insulation portion 20 .

[0088] Among them, along the radial direction of the skeleton body 10, the insulating part 20 is arranged at the circumferential edge of the skeleton body 10, the insulating part 20 defines a wiring gap 11, and the insulating part 20 can be assembled in the gap structure 201. The material of the insulating part 20 and the material of the skeleton body 10 can be the same, for example: the insulating part 20 and the skeleton body 10 are both made of plastic. The insulating part 20 can be bonded to the skeleton body 10, or the insulating part 20 can be clamped to the skeleton body 10. After the stator insulation skeleton 100 is installed on the stator core 200, the insulating part 20 is assembled in the gap structure 201, and the insulating parts 20 of the stator insulation skeletons 100 on both sides of the stator core 200 are assembled in the gap structure 201, and the insulating parts 20 of the two stator insulation skeletons 100 on both sides of the stator core 200 are arranged oppositely, and the insulating parts 20 of the two stator insulation skeletons 100 on both sides of the stator core 200 can be abutted. The wiring gaps 11 of the two insulating parts 20 are butted to form a wiring space 21. When the two winding coils 300 located on both sides of the stator core 200 are connected in series, the lead ends of the two winding coils 300 extend into the wiring space 21 and are connected in the wiring space 21. The insulating part 20 has a specific insulation function. The insulating part 20 is located between the stator core 200 and the winding coil 300, and can isolate the stator core 200 and the winding coil 300, thereby reducing the risk of short circuit caused by contact between the stator core 200 and the winding coil 300.

[0089] In some specific embodiments of the present invention, Figure 8 As shown, the insulating part 20 is suitable for abutting against the inner wall of the notch structure 201. After the stator insulation frame 100 is installed on the stator core 200, the insulating part 20 abuts against the inner wall of the notch structure 201, which can reduce the risk of the stator insulation frame 100 moving relative to the stator core 200 and improve the assembly stability of the stator insulation frame 100 and the stator core 200.

[0090] In some specific embodiments of the present invention, Fig.11 As shown, the insulating part 20 and the skeleton body 10 are integrally formed, for example, the insulating part 20 and the skeleton body 10 are integrally injection molded. By integrally forming the insulating part 20 and the skeleton body 10, the risk of separation of the insulating part 20 and the skeleton body 10 can be reduced, and the risk of short circuit caused by contact between the stator core 200 and the winding coil 300 can be further reduced. In addition, the number of molds for producing the stator insulation skeleton 100 can be reduced, and the production cost of the stator insulation skeleton 100 can be reduced.

[0091] In some specific embodiments of the present invention, Figure 7 As shown, when the stator insulation frame 100 is assembled in the slot structure 206 of the stator core 200 , the circumferential edge of the stator insulation frame 100 extends out of the corresponding slot structure 206 .

[0092] Among them, along the axial direction of the stator core 200, slot structures 206 are formed on both sides of the stator core 200, and the stator insulation skeletons 100 on both sides of the stator core 200 are assembled in the corresponding slot structures 206. When the stator insulation skeleton 100 is assembled in the slot structure 206, along the axial direction of the stator core 200, the circumferential edge of the stator insulation skeleton 100 extends out of the corresponding slot structure 206. It can also be understood that the circumferential edge of the stator insulation skeleton 100 protrudes from the slot structure 206, and the stator insulation skeleton 100 plays an insulating role between the winding coil 300 and the stator core 200, so as to facilitate the arrangement of the stator insulation skeleton 100 and the stator core 200.

[0093] In some specific embodiments of the present invention, Figure 7 , Figure 9-11 As shown, there are multiple wiring gaps 11 and multiple gap structures 201, and the multiple wiring gaps 11 and the multiple gap structures 201 correspond one to one.

[0094] The plurality of connection slots 11 are sequentially arranged along the circumference of the stator insulation frame 100, and the plurality of slot structures 201 are sequentially arranged along the circumference of the stator core 200, with one connection slot 11 and one slot structure 201 being provided correspondingly. The number of connection slots 11 and slot structures 201 may be the same.

[0095] The number of the wiring notches 11 and the notch structures 201 can be two, three, four, five, six, etc., and the plurality of wiring notches 11 are arranged in sequence along the circumference of the stator insulation frame 100, and the wiring groove 15 is connected to one wiring notch 11. When connected to a three-phase power supply, not only the winding coils 300 need to be connected in series inside the stator assembly 400, but also the stator core 200 connected to the same-phase power supply needs to be connected in series. Due to the different phases between the stator cores 200, by setting a plurality of wiring notches 11 and a plurality of notch structures 201, the corresponding stator insulation frame 100 is rotated to facilitate wiring, thereby improving the versatility and utilization rate of the stator insulation frame 100, increasing production efficiency, saving costs, and facilitating the mass production of the stator insulation frame 100. It should be noted that since the wiring groove 15 is connected to a wiring notch 11, assembly and wiring errors can be effectively avoided, thereby improving production efficiency.

[0096] In some specific embodiments of the present invention, Figure 4 , Figure 9-11 As shown, a plurality of connection gaps 11 and a plurality of gap structures 201 are evenly arranged along the circumference of the stator core 200 .

[0097] Among them, the present application takes the example that both the wiring gaps 11 and the gap structures 201 are set to six, the six wiring gaps 11 are evenly arranged along the circumference of the stator insulation frame 100, and the interval between two adjacent wiring gaps 11 is 60°, and the six gap structures 201 are evenly arranged along the circumference of the stator core 200, and the interval between two adjacent gap structures 201 is 60°. Whether it is the spacing angle of the lead end of the winding coil 300 or the spacing angle between the lead end and the outlet end of the winding coil 300, they are multiples of 60°. Therefore, by setting multiple wiring gaps 11 and multiple gap structures 201, the versatility and utilization rate of the stator insulation frame 100 are further improved, the production efficiency can be further increased, the cost can be further saved, and it is conducive to the mass production of the stator insulation frame 100.

[0098] It should be noted that there are multiple insulating parts 20, and the multiple insulating parts 20 and the multiple wiring gaps 11 are arranged in a one-to-one correspondence.

[0099] In some specific embodiments of the present invention, Figure 4 , Fig. 9 and Fig.10 As shown, the skeleton body 10 may have an assembly hole 17 , and along the axial direction of the central hole 208 of the stator body 202 , the inner edge of the stator insulation skeleton 100 extends out of the slot structure 206 .

[0100] The frame body 10 has an assembly hole 17 in the middle thereof, and the assembly hole 17 penetrates the frame body 10 along the axial direction of the stator insulation frame 100. After the stator insulation frame 100 is installed on the stator core 200, the stopper 207 of the stator core 200 is assembled in the assembly hole 17, so that the overall structure of the stator core 200 and the stator insulation frame 100 is compact, which is conducive to reducing the volume of the stator assembly 400.

[0101] like Fig. 9 As shown, the inner wall of the assembly hole 17 is the inner edge of the stator insulation frame 100, and the inner edge of the stator insulation frame 100 has a limiting wall 18, which is arranged around the assembly hole 17, and the limiting wall 18 is configured as the inner side wall of the mounting groove 14, and the limiting wall 18 is the inner edge of the stator insulation frame 100. The mounting groove 14 is an annular structure, and the mounting groove 14 is arranged around the limiting wall 18, and the mounting groove 14 is used to nest the winding coil 300. After the stator insulation frame 100 is installed on the stator core 200, the end of the limiting wall 18 away from the stator core 200 extends out of the slot structure 206. After the winding coil 300 is installed in the mounting groove 14, since the end of the limiting wall 18 away from the stator core 200 extends out of the slot structure 206, the risk of contact between the winding coil 300 and the stator core 200 is reduced, so that the stator insulation frame 100 can better play an insulating role.

[0102] Furthermore, if Fig.13As shown, an installation step 19 is formed at the end of the limiting wall 18, and the installation step 19 is used to install the insulating member.

[0103] Among them, the end of the limiting wall 18 away from the skeleton body 10 is formed with a mounting step 19, and the mounting step 19 is used to install an insulating member, and the insulating member can be an insulating paper or an insulating film, etc. A plurality of stator cores 200 are stacked in sequence, and two adjacent stator cores 200 are separated by insulating members, and the insulating members are nested at the mounting step 19 of the limiting wall 18, so that the structure of the stator assembly 400 can be compact, the material utilization rate is high, and it can also play an insulating role.

[0104] In some specific embodiments of the present invention, Figure 2 and Figure 3 As shown, there may be multiple stator cores 200, and the multiple stator cores 200 are stacked in sequence along the axial direction of the stator core 200. The slot structures 206 on both sides of each stator core 40 are used to install the winding coils 300 of the linear motor, further improving the space utilization and slot fill rate of the stator core 200 and the stator assembly 400.

[0105] It should be noted that the axial direction of the stator insulation frame 100 and the axial direction of the stator core 200 are both Figure 3 In the Z direction, the stator core 200, the stator insulation frame 100, and the winding coil 300 of the present application are designed as independent parts and then assembled when in use. The stator insulation frame 100 comprehensively surpasses the existing stator insulation frame 100 in many aspects such as layout space, production efficiency, processing difficulty, maintenance convenience, structural complexity, and consistency of parts.

[0106] like Figure 1 As shown, the stator assembly 400 according to an embodiment of the present invention includes: an end stator core assembly 50 and a middle stator core assembly 40, the middle stator core assembly 40 is arranged between the end stator core assemblies 50, and at least one of the end stator core assembly 50 and the middle stator core assembly 40 includes the stator core assembly of the above embodiment.

[0107] There are two end stator core assemblies 50, and the two end stator core assemblies 50 are the terminal end core assembly and the starting end core assembly respectively. The middle stator core assembly 40 is located between the two end stator core assemblies 50, and at least one of the end stator core assembly 50 and the middle stator core assembly 40 includes the stator core assembly of the above embodiment. This application is described by taking the middle stator core assembly 40 including the stator core assembly of the above embodiment as an example. A slot structure 206 is formed on at least one side of the stator core 200, and a winding coil 300 can be installed in each slot structure 206, so that the winding coil 300 and the stator core 200 are stacked, and one stator core 200 is installed with at least one layer of winding coil 300, thereby improving the space utilization rate and slot fill rate of the stator core 200, and then improving the space utilization rate and slot fill rate of the stator assembly 400.

[0108] In some specific embodiments of the present invention, Figure 3 As shown, a slot structure 206 is formed on one side of the stator core 200 of the end stator core assembly 50, and a slot structure 206 is formed on both sides of the stator core 200 of the middle stator core assembly 40. In the axial direction of the stator core 200, a slot structure 206 is formed on the surface of the stator core 200 of the end stator core assembly 50 facing the stator core 200 of the middle stator core assembly 40, and the stator core 200 of the end stator core assembly 50 forms one slot structure 206, and the stator core 200 of the middle stator core assembly 40 can form one slot structure 206 on both sides. By forming a slot structure 206 on one side of the stator core 200 of the end stator core assembly 50 and forming a slot structure 206 on both sides of the stator core 200 of the middle stator core assembly 40, the space utilization rate and slot fill rate of the stator core 200 are further improved, and the space utilization rate and slot fill rate of the stator assembly 400 are further improved.

[0109] In some specific embodiments of the present invention, an insulating member is provided between the winding coils 300 of two adjacent stator cores 200. The insulating member may be insulating paper or insulating film, etc. A plurality of stator cores 200 are stacked in sequence, and two adjacent stator cores 200 are separated by the insulating member, and the insulating member separates the two adjacent winding coils 300 to achieve an insulation effect.

[0110] Furthermore, when the stator core 200, the stator insulation frame 100 and the winding coil 300 of the end stator core assembly 50 are assembled, the stator insulation frame 100 is first assembled to the stator core 200 of the end stator core assembly 50, and then the winding coil 300 is assembled to the stator insulation frame 100. By integrally forming the stator body 202 and the outer edge 203 of the stator core 200 of the end stator core assembly 50, the structural strength of the end stator core assembly 50 can be improved.

[0111] The circumferential edges of the stator core 200 of the middle stator core assembly 40 and the stator core 200 of the end stator core assembly 50 may have a notch structure 201. The stator insulation frame 100 is stacked and assembled with the corresponding stator core 200. Along the axial direction of the stator core 200, the wiring notch 11 and the notch structure 201 are correspondingly arranged, and the wiring notch 11 and the notch structure 201 can be connected in series at the wiring notch 11 and the notch structure 201, so that the winding coil 300 can be connected in series outside the circumference of the stator insulation frame 100. Compared with the prior art, there can be a larger operating space for wiring, which is convenient for wiring between the winding coils 300, thereby helping to improve the production efficiency of the linear motor.

[0112] Since the thickness of the end end core and the start end core is relatively thin, the end end core and the start end core are made into a unit module. The end end core and the start end core are an integral module, that is, the stator body 202 and the outer edge 203 of the stator core 200 of the end stator core 50 are integrally formed.

[0113] In some specific embodiments of the present invention, Figure 4 and Figure 6 As shown, the outer peripheral wall of the outer edge portion 203 has a cutout structure 305. By providing the cutout structure 305, the magnetic resistance can be reduced, the negative impact of thrust fluctuation on the linear motor can be reduced, the thrust fluctuation of the linear motor can be reduced, and thus the working performance of the linear motor can be improved. In addition, the weight of the stator core 200 can also be reduced, which is beneficial to the lightweight design of the stator assembly 400.

[0114] In some specific embodiments of the present invention, the stator assembly 400 includes a plurality of middle stator core assemblies 40 and two end stator core assemblies 50, each middle stator core assembly 40 and each end stator core assembly 50 are independent modular units, and the winding coils 300 of the same modular unit are in-phase coils, which are connected by welding, and comprehensively surpass the traditional design in many aspects such as layout space, production efficiency, processing difficulty, maintenance convenience, structural complexity, and consistency of parts.

[0115] In some specific embodiments of the present invention, a plurality of winding coils 300 are disposed on the stator assembly 400 . The plurality of winding coils 300 are three-phase winding coils 300 . The winding coils 300 adopt a flat wire structure, thereby increasing space utilization.

[0116] In some specific embodiments of the present invention, each middle stator core assembly 40 is provided with a double-layer winding coil 300, and the double-layer winding coil 300 is connected in series and welded together. Since each middle stator core assembly 40 and each end stator core assembly 50 are independent modular units, the middle stator core assembly 40 and the two end stator core assemblies 50 are stacked to form a stator assembly 400, and the stacking order is A phase, B phase and C phase from the starting end. The connection between the modular units of the same phase is also in series, and the connection points are still welded, which has good operability, simple process and is conducive to production and processing. Moreover, the welding points are on the outside, which is more intuitive during assembly and welding, which is conducive to avoiding wiring errors and improving production efficiency. This method has a large operating space, is easy to operate, and saves work time.

[0117] The linear motor according to an embodiment of the present invention includes the stator assembly 400 of the above embodiment, and a slot structure 206 is formed on at least one side of the stator core 200. A winding coil 300 can be installed in each slot structure 206, so that the winding coil 300 and the stator core 200 are stacked, and a stator core 200 is installed with at least one layer of winding coil 300, thereby improving the space utilization and slot fill rate of the stator core 200, and further improving the space utilization and slot fill rate of the stator assembly 400.

[0118] According to an embodiment of the present invention, the suspension device 500 includes the linear motor of the above-mentioned embodiment, and a slot structure 206 is formed on at least one side of the stator core 200. A winding coil 300 can be installed in each slot structure 206, so that the winding coil 300 and the stator core 200 are stacked, and a stator core 200 is installed with at least one layer of winding coil 300, thereby improving the space utilization and slot fill rate of the stator core 200, and then improving the space utilization and slot fill rate of the stator assembly 400, improving the working performance of the linear motor, and thus improving the performance of the suspension device 500.

[0119] According to an embodiment of the present invention, the vehicle includes the suspension device 500 of the above embodiment, and a slot structure 206 is formed on at least one side of the stator core 200. A winding coil 300 can be installed in each slot structure 206, so that the winding coil 300 and the stator core 200 are stacked, and a stator core 200 is installed with at least one layer of winding coil 300, thereby improving the space utilization and slot fill rate of the stator core 200, and then improving the space utilization and slot fill rate of the stator assembly 400, improving the working performance of the linear motor, thereby improving the performance of the suspension device 500, and then improving the vehicle performance.

[0120] 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. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0121] 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 stator core assembly of a linear motor, characterized in that: include: A stator core, wherein a slot structure is formed on at least one side of the stator core in the axial direction of the stator core, and the slot structure is used to install the winding coil of the linear motor; A stator insulation frame, the stator insulation frame is used to install the winding coil, and the stator insulation frame is arranged in the slot structure; the stator insulation frame comprises: a frame body, along the axial direction of the stator core, the frame body is formed with a mounting groove for installing the winding coil on a side away from the stator core; The bottom wall of the mounting groove is formed with a wiring groove, the bottom wall of the groove body structure has an assembly groove, and the surface of the skeleton body facing the stator core is formed with a boss structure, and the boss structure is assembled in the assembly groove; along the axial direction of the stator core, the skeleton body protrudes toward the stator core to form the boss structure and the wiring groove.

2. The stator core assembly of the linear motor according to claim 1, characterized in that: The slot structure is formed on both sides of the stator core along the axial direction of the stator core.

3. The stator core assembly of the linear motor according to claim 1, characterized in that: The stator core comprises: a stator body and an outer edge portion, wherein the outer edge portion is arranged on the outer peripheral wall of the stator body, and along the axial direction of the stator core, both sides of the outer edge portion protrude from the stator body to form the slot structure on both sides of the stator core.

4. The stator core assembly of the linear motor according to claim 3, characterized in that: A central hole is formed on the stator body, and a limiting portion is arranged on the inner wall of the central hole.

5. The stator core assembly of the linear motor according to claim 4, characterized in that: Along the axial direction of the central hole, the limiting portion protrudes from the stator body.

6. The stator core assembly of the linear motor according to claim 1, characterized in that: The stator insulation frame and the stator core are stacked, the circumferential edge of the stator core has a notch structure, the circumferential edge of the stator insulation frame has a wiring notch, and along the axial direction of the stator core, the wiring notch corresponds to the notch structure.

7. The stator core assembly of the linear motor according to claim 6, characterized in that: Along the radial direction of the stator core, the connection gap corresponds to the gap structure.

8. The stator core assembly of the linear motor according to claim 6, characterized in that: The frame body is formed with the wiring gap, and the mounting groove is communicated with the wiring gap.

9. The stator core assembly of the linear motor according to claim 8, characterized in that: The wiring notch and the installation groove are both communicated with the wiring groove.

10. The stator core assembly of the linear motor according to claim 8, characterized in that: The stator insulation frame further includes: an insulation part, which is arranged on the outer edge of the frame body, and the wiring notch is arranged on the insulation part.

11. The stator core assembly of the linear motor according to claim 1, characterized in that: When the stator insulation frame is assembled in the slot structure, the circumferential edge of the stator insulation frame extends out of the corresponding slot structure.

12. The stator core assembly of the linear motor according to claim 6, characterized in that: There are multiple wiring gaps and multiple gap structures, and the multiple wiring gaps and the multiple gap structures correspond to each other one by one.

13. The stator core assembly of the linear motor according to claim 12, characterized in that: The plurality of connection gaps and the plurality of gap structures are evenly arranged along the circumference of the stator core.

14. The stator core assembly of the linear motor according to claim 3, characterized in that: The stator insulation frame has an assembly hole, and along the axial direction of the central hole of the stator body, the inner edge of the stator insulation frame extends out of the slot structure.

15. The stator core assembly of the linear motor according to any one of claims 1 to 5, characterized in that: There are a plurality of stator cores, and the plurality of stator cores are stacked in sequence along the axial direction of the stator core.

16. A stator assembly of a linear motor, characterized in that: It comprises an end stator core assembly and a middle stator core assembly, wherein the middle stator core assembly is arranged between the end stator core assemblies, and at least one of the end stator core assembly and the middle stator core assembly comprises the stator core assembly described in any one of claims 1-15.

17. The stator assembly according to claim 16, characterized in that The slot structure is formed on one side of the stator core of the end stator core assembly, and the slot structure is formed on both sides of the stator core of the middle stator core assembly.

18. The stator assembly according to claim 16, characterized in that An insulating member is arranged between the winding coils of two adjacent stator cores.

19. A linear motor, characterized in that: Comprising a stator assembly according to any one of claims 16-18.

20. A suspension device, characterized in that: Comprising a linear motor according to claim 19.

21. A vehicle, characterized in that: Comprising a suspension device according to claim 20.

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