CN117895676A - Stator core, stator assembly, linear motor, suspension device and vehicle - Google Patents

Abstract

The invention discloses a stator core, a stator assembly, a linear motor, a suspension device and a vehicle, wherein the stator core of the linear motor comprises: and the stator core is axially provided with a groove body structure at least on one side, and the groove body structure is used for installing a winding coil of the linear motor. From this, be formed with the cell body structure through stator core's at least one side, can install winding coil in the cell body structure, make winding coil and stator core range upon range of setting, stator module can be piled up by a plurality of stator cores and form, and processing is convenient, and the coil in the stator core can accomplish the wire winding earlier, assembles again, and the wire winding is convenient.

Description

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

Technical Field

The invention relates to the technical field of linear motors, in particular to a stator core, a stator assembly, a linear motor, a suspension device and a vehicle.

Background

In the related art, the existing linear motor comprises a stator assembly, the stator assembly comprises a plurality of grooves used for winding coils and arranged on a stator core, the winding of the existing stator core is complex, and the processing difficulty is high. .

Disclosure of Invention

The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, an object of the present invention is to provide a stator core of a linear motor, in which the stator core and winding coils are stacked, the stator assembly can be formed by stacking a plurality of stator cores, the processing is convenient, and the coils in the stator core can be wound first and then assembled, so that the winding is convenient.

The invention further provides a stator assembly of the linear motor.

The invention further provides a linear motor.

The invention further provides a suspension device.

The invention further proposes a vehicle.

The stator core of the linear motor according to the present invention includes:

and the stator core is axially provided with a groove body structure at least on one side, and the groove body structure is used for installing a winding coil of the linear motor.

According to the stator core of the linear motor, the stator assembly can be formed by stacking a plurality of stator cores, the processing is convenient, and the coils in the stator cores can be wound firstly and then assembled, so that the winding is convenient.

In some examples of the present invention, the slot structures are formed on both sides of the stator core in an axial direction of the stator core.

In some examples of the invention, the stator core includes: the stator comprises a stator body and an outer edge part, wherein the outer edge part is arranged on the outer peripheral wall of the stator body, the two sides of the outer edge part are protruded out of the stator body along the axial direction of the stator core, and the groove body structures are formed on the two sides of the stator core.

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

In some examples of the invention, the limit portion protrudes from the stator body in an axial direction of the center hole.

In some examples of the present invention, the stator core of the linear motor further includes: the stator insulation framework is used for installing the winding coil and is arranged in the groove body structure.

In some examples of the present invention, the stator insulating frame is stacked with the stator core, a circumferential edge of the stator core has a notch structure, a circumferential edge of the stator insulating frame has a wiring notch, and the wiring notch corresponds to the notch structure along an axial direction of the stator core.

In some examples of the present invention, the wiring notch corresponds to the notch structure in a radial direction of the stator core.

In some examples of the invention, the stator insulation skeleton includes: the framework body, the framework body is formed with the wiring breach, follows stator core's axial, the framework body deviates from stator core's one side is formed with and is used for the installation winding coil's mounting groove, the mounting groove with the wiring breach intercommunication.

In some examples of the present invention, the bottom wall of the mounting groove is formed with a wiring groove, and the wiring notch and the mounting groove are both communicated with the wiring groove.

In some examples of the present invention, the bottom wall of the slot body structure has an assembling groove, and a surface of the backbone body facing the stator core is formed with a boss structure assembled to the assembling groove.

In some examples of the present invention, the skeleton body is protruded in a direction toward the stator core in an axial direction of the stator core to form the boss structure and the wiring groove.

In some examples of the invention, the stator insulation skeleton further comprises: the insulation part is arranged at the outer side edge of the framework body, and the wiring notch is arranged on the insulation part.

In some examples of the invention, the circumferential edges of the stator insulation framework extend beyond the respective slot structures when the stator insulation framework is assembled within the slot structures.

In some examples of the present invention, the wiring notch and the notch structure are plural, and the wiring notch and the notch structure are plural in one-to-one correspondence.

In some examples of the present invention, the plurality of wiring notches and the plurality of notch structures are uniformly arranged along the circumferential direction of the stator core.

In some examples of the invention, the stator insulating skeleton has a fitting hole, and an inner edge of the stator insulating skeleton protrudes from the groove structure in an axial direction of the center hole of the stator body.

In some examples of the present invention, the stator core is a plurality of stator cores, and the plurality of stator cores are stacked in order along an axial direction of the stator core.

The stator assembly of the linear motor comprises end stator cores and a middle stator core, wherein the middle stator core is arranged between the end stator cores, and at least one of the end stator cores and the middle stator core comprises the stator core.

In some examples of the present invention, the slot structures are formed on one side of the end stator core and the slot structures are formed on both sides of the middle stator core.

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

The linear motor comprises the stator assembly.

The suspension device according to the present invention includes the above-described linear motor.

The vehicle according to the present invention includes the suspension device described above.

Additional aspects and advantages of the 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.

Drawings

The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic view of a suspension apparatus according to an embodiment of the present invention;

FIG. 2 is a schematic illustration of a stator assembly and winding coil assembly according to an embodiment of the present invention;

FIG. 3 is an assembled cross-sectional view of a stator assembly and winding coil in accordance with an embodiment of the present invention;

FIG. 4 is a schematic view of a central stator core of a stator assembly according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of a winding coil according to an embodiment of the invention;

fig. 6 is a schematic diagram of a middle stator core and winding coil assembly according to an embodiment of the invention;

FIG. 7 is an assembled schematic view of a stator assembly according to an embodiment of the invention;

FIG. 8 is an enlarged view at A in FIG. 7;

fig. 9 is a perspective view of a stator insulation frame according to an embodiment of the present invention;

fig. 10 is a top view of a stator insulation framework according to an embodiment of the present invention;

fig. 11 is another angular perspective view of a stator insulation frame according to an embodiment of the present invention;

fig. 12 is a side view of a stator insulation backbone according to an embodiment of the present invention;

fig. 13 is an assembly schematic diagram of a stator insulating frame and a stator core according to an embodiment of the present invention.

Reference numerals:

a stator assembly 400;

a stator core 200; a notch structure 201; a first sub-notch structure 2011; a second sub-notch structure 2012; a stator body 202; an outer edge portion 203; a fitting groove 205; a channel structure 206; a stopper 207; a central bore 208;

a stator insulation frame 100; a wiring notch 11; a mounting groove 14; a wiring groove 15; a boss structure 16; a fitting hole 17; a limiting wall 18; a mounting step 19; a skeleton body 10;

an insulating portion 20; a wiring space 21; a sub-outer edge portion 23;

A cut-out structure 305;

a middle stator core 40; an end stator core 50;

a winding coil 300;

suspension apparatus 500.

Detailed Description

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.

Referring to fig. 1 to 13, a stator assembly 400 of a linear motor according to an embodiment of the present invention is described, and 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 bobbin 100 and a winding coil 300, the stator insulation bobbin 100 is mounted to the stator core 200 of the linear motor, and the winding coil 300 of the linear motor is disposed to the stator insulation bobbin 100. The stator insulation frame 100 is stacked with the corresponding stator core 200, and 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.

As shown in fig. 3, 4 and 8, the stator core 200 according to the embodiment of the present invention includes: the stator core 200 has a slot structure 206 formed on at least one side of the stator core 200 in an axial direction of the stator core 200, the slot structure 206 being used for mounting a winding coil 300 of a linear motor.

The stator assembly 400 may include an end stator core 50 and a middle stator core 40, where the end stator core 50 and the middle stator core 40 are stacked along an axial direction of the stator assembly 400, the end stator core 50 may be two, the middle stator core 40 is located between the two end stator cores 50, and at least one of the end stator core 50 and the middle stator core 40 may include the stator core 200 of the above embodiment. The axial direction of the stator assembly 400 is the same as the axial direction of the stator core 200, and when the stator assembly 400 is placed in the direction of fig. 3, the axial direction of the stator core 200 is the Z direction of fig. 3.

In the axial direction of the stator core 200, a slot structure 206 is formed at least one side of the stator core 200, that is, a slot structure 206 is formed at one side of the stator core 200, or a slot structure 206 is formed at both sides of the stator core 200, and the winding coil 300 is mounted to the slot structure 206. Through being formed with cell body structure 206 in at least one side of stator core 200, can all install winding coil 300 in every cell body structure 206, make winding coil 300 and stator core 200 range upon range of setting, one stator core 200 installs at least one deck winding coil 300 to promote stator core 200's space utilization and groove full rate, and then promote stator module 400's space utilization and groove full rate.

From this, be formed with cell body structure 206 through at least one side of stator core 200, all can install winding coil 300 in every cell body structure 206, make winding coil 300 and stator core 200 range upon range of setting, at least one deck winding coil 300 is installed to a stator core 200, compare in integral iron core, this stator core wire winding is convenient, and the wire winding no longer is limited by the upper and lower lateral wall of recess in the stator core among the prior art, can promote the space utilization and the groove full rate of stator core 200 to a certain extent, and then promote the space utilization and the groove full rate of stator module 400.

In some embodiments of the present invention, as shown in fig. 3, 4 and 8, a slot structure 206 is formed at both sides of the stator core 200 in 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 located at two 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 mount the winding coil 300 of the linear motor, and the winding coil 300 may be mounted to the slot structures 206 through the stator insulation frame 100. Through all being formed with cell body structure 206 in the both sides of stator core 200, all can install winding coil 300 in every cell body structure 206, realize the effect that a stator core 200 installs multilayer winding coil 300 to further promote stator core 200's space utilization and groove full rate, and then further promote stator module 400's space utilization and groove full rate.

In some embodiments of the present invention, as shown in fig. 4 and 8, the stator core 200 may include: the stator body 202 and the outer edge 203, the outer edge 203 is provided on the outer peripheral wall of the stator body 202, and both sides of the outer edge 203 protrude from the stator body 202 along the axial direction of the stator core 200 to form a groove structure 206 on both sides of the stator core 200.

The stator body 202 may have 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 disposed around the stator body 202 along the circumference of the stator body 202, along the axial direction of the stator core 200, both sides of the outer edge 203 of the stator core 200 protrude out of the stator body 202, the stator body 202 and the outer edge 203 of the stator core 200 together define two slot structures 206, and the slot structures 206 can be formed on both sides of the stator core 200, so that the structural design of the stator core 200 is reasonable.

In some embodiments of the present invention, as shown in fig. 4 and 8, the stator body 202 is located in the middle of the outer edge portion 203 in the axial direction of the stator core 200.

In the axial direction of the stator core 200, the stator body 202 of the stator core 200 is assembled at a middle position of the outer edge 203, for example: the stator body 202 is assembled at a position right in the middle of the outer edge 203 along the axial direction of the stator core 200, and when the outer edge 203 is mounted on the stator body 202, the groove body structure 206 with the same structural shape is formed on two sides of the stator core 200, so that the structural consistency of the stator core 200 is improved.

In some embodiments of the present invention, as shown in fig. 4, a central hole 208 is formed on the stator body 202, and a limiting portion 207 is disposed on an inner wall of the central hole 208, it is understood that the limiting portion 207 may be disposed between the stator body 202 and the limiting portion 207 to form a slot structure.

The central hole 208 penetrates 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 central hole 208 is the inner peripheral edge of the stator body 202, that is, the inner wall of the central hole 208 is the inner periphery of the stator body 202, the outer peripheral wall of the stator body 202 is the outer periphery of the stator body 202, the limiting part 207 is arranged on the inner wall of the central hole 208, the limiting part 207 can be arranged around the central hole 208, the outer edge part 203 is arranged on the outer peripheral wall of the stator body 202, and the limiting part 207 is arranged at intervals with the outer edge part 203 along the radial direction of the stator core 200, so that the limiting part 207, the stator body 202 and the outer edge part 203 jointly define a groove body structure 206, and the groove body structure 206 is arranged between the outer edge part 203 and the limiting part 207.

In some embodiments of the present invention, as shown in fig. 4, the limiting portion 207 protrudes from the stator body 202 along the axial direction of the central hole 208. The limiting portion 207 protrudes from at least one side of the stator body 202 along the axial direction of the central hole 208, and 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, and when the limiting portion protrudes from two sides of the stator body 202, a slot structure 206 is formed on two sides of the stator core 200. The limiting portion 207 protrudes from the stator body 202 in the axial direction of the center hole 208, so that the groove structure 206 is formed on both sides of the stator core 200.

In some embodiments of the present invention, as shown in fig. 6 to 8, the stator core 200 may further include: the stator insulation bobbin 100 (the stator insulation bobbin 100 in the above embodiment), the stator insulation bobbin 100 is used for mounting the winding coil 300, and the stator insulation bobbin 100 is provided in the slot structure 206. Wherein, each slot body structure 206 may be provided therein with a stator insulation skeleton 100, and the stator insulation skeleton 100 is configured as an insulation member, for example: the stator insulation framework 100 is a plastic piece, and each slot body structure 206 of the stator core 200 is internally provided with one stator insulation framework 100, the winding coil 300 is mounted on the stator insulation framework 100, and the stator insulation framework 100 can separate the winding coil 300 from the stator core 200 to play an insulation effect.

In some embodiments of the present invention, as shown in fig. 6 to 8, the stator insulation frame 100 is stacked with the stator core 200, the circumferential edge of the stator core 200 has a notch structure 201, the circumferential edge of the stator insulation frame 100 has a wiring notch 11, and the wiring notch 11 corresponds to the notch structure 201 along the axial direction of the stator core 200.

The stator insulation framework 100 and the stator core 200 are stacked, a gap structure 201 is provided at a circumferential edge of the stator core 200, a wiring gap 11 is provided at a circumferential edge of the stator insulation framework 100, in other words, the wiring gap 11 is provided at an edge of the stator insulation framework 100 along a radial direction of the stator insulation framework 100, the wiring gap 11 penetrates through the stator insulation framework 100 along an axial direction of the stator core 200, after the stator insulation framework 100 and the stator core 200 are stacked and assembled, the wiring gap 11 and the gap structure 201 are correspondingly provided along an axial direction of the stator core 200, and an orthographic projection of the wiring gap 11 and an orthographic projection of the gap structure 201 have overlapping areas. As an example, in 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 the orthographic projection of the wiring notch 11 and the orthographic projection of the notch structure 201 completely coincide along the axial direction of the stator core 200.

Specifically, one stator insulation bobbin 100 is provided at both sides of the stator core 200 along the axial direction of the stator core 200, respectively, and each stator insulation bobbin 100 is provided with a winding coil 300. The circumferential edge of the stator insulation framework 100 is provided with a wiring notch 11, the circumferential edge of the stator core 200 is provided with a notch structure 201, and the wiring notch 11 and the notch structure 201 are correspondingly arranged along the axial direction of the stator core 200. When two winding coils 300 located at both sides of the stator core 200 are connected in series, the lead ends of the two winding coils 300 extend into the connection notch 11 of one stator insulation frame 100, or the lead ends of the two winding coils 300 extend between the two connection notches 11 of the two stator insulation frames 100, 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: and (5) welding connection. Through carrying out the series connection of two winding coils 300 in wiring breach 11 department, make winding coil 300 carry out the series connection in the circumference outside of stator insulation skeleton 100, can increase wiring operation space, be convenient for the wiring between winding coil 300, be favorable to welding wiring between the winding coil 300, be convenient for operate to be favorable to promoting linear electric motor's production efficiency.

Therefore, by arranging the wiring notch 11 and the notch structure 201, serial connection can be performed at the positions of the wiring notch 11 and the notch structure 201, so that the winding coil 300 is connected in series at the peripheral outer part of the stator insulation framework 100. In addition, the stator insulation framework 100 of this application simple structure, easily processing are favorable to batch production to, the stator insulation framework 100 processing technology of this application is simple, is favorable to improving production efficiency, simultaneously, the stator insulation framework 100 occupation space of this application is small.

In some embodiments of the present invention, as shown in fig. 6 to 8, the wire notch 11 corresponds to the notch structure 201 in the radial direction of the stator core 200.

The circumferential edge of the stator body 202 is formed with a first sub-notch structure 2011, the outer edge 203 includes a plurality of sub-outer edge portions 23, the plurality of sub-outer edge portions 23 are sequentially arranged along the circumferential direction of the stator body 202, the plurality of sub-outer edge portions 23 are arranged around the stator body 202 along the circumferential direction of the stator body 202, two adjacent sub-outer edge portions 23 are spaced apart to form a second sub-notch structure 2012 between the two adjacent sub-outer edge portions 23, the second sub-notch structure 2012 is correspondingly arranged with the first sub-notch structure 2011, the first sub-notch structure 2011 and the second sub-notch structure 2012 are communicated, and the first sub-notch structure 2011 and the second sub-notch structure 2012 are configured as the notch structure 201.

After the stator insulating framework 100 and the stator core 200 are assembled in a stacked manner, the wiring notch 11 and the second sub-notch structure 2012 are correspondingly arranged along the radial direction of the stator core 200, the orthographic projection of the wiring notch 11 and the orthographic projection of the second sub-notch structure 2012 along the radial direction of the stator insulating framework 100 have overlapping areas, and the orthographic projection of the wiring notch 11 and the orthographic projection of the first sub-notch structure 2011 along the axial direction of the stator insulating framework 100 have overlapping areas. By arranging the radial wiring gaps 11 and the gap structures 201 along the stator assembly 400, the winding coil 300 is mounted on the stator insulation frameworks 100, which is beneficial for the lead ends of the winding coil 300 to extend into the wiring gaps 11 and the lead ends of the winding coil 300 to extend between the two wiring gaps 11 of the two stator insulation frameworks 100.

In some embodiments of the present invention, as shown in fig. 9 and 10, the stator insulation frame 100 may include: the framework body 10, the framework body 10 is formed with the wiring breach 11, along the axial of stator core 200, and the side that the framework body 10 deviates from stator core 200 is formed with the mounting groove 14 that is used for installing winding coil 300, and the mounting groove 14 communicates with wiring breach 11.

Wherein, along the axial direction of stator core 200, after stator insulation skeleton 100 installs in stator core 200, skeleton body 10 is formed with towards the sunken mounting groove 14 in the skeleton body 10 in the side of leaving away from stator core 200, and mounting groove 14 is used for installing winding coil 300, and winding coil 300 assembles in mounting groove 14, and winding coil 300 can assemble in mounting groove 14 through the wire winding mode, and mounting groove 14 can be spacing winding coil 300, can reduce winding coil 300 and rock the risk. The lead end of the winding coil 300 can be made to extend into the wiring notch 11 by communicating the mounting groove 14 with the wiring notch 11.

In some embodiments of the present invention, as shown in fig. 9 and 10, 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 in communication with the wiring groove 15. The wiring groove 15 is formed on the bottom wall of the mounting groove 14, the wiring groove 15 may be in a strip structure, one end of the wiring groove 15 is communicated with the wiring notch 11, and the end of the wiring groove 15 facing the mounting groove 14 is opened to be communicated with the mounting groove 14. The winding coil 300 is assembled in the mounting groove 14, 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, and the wiring groove 15 has guiding and positioning functions on the lead end of the winding coil 300, so that the lead end of the winding coil 300 is convenient to wire.

In some embodiments of the present invention, as shown in fig. 9 and 10, the wire grooves 15 are arranged along the radial direction of the stator insulation frame 100, the winding coil 300 is assembled in the mounting groove 14, the lead ends of the winding coil 300 are assembled in the wire grooves 15, and the wire grooves 15 are arranged along the radial direction of the stator insulation frame 100, so that the lead ends of the winding coil 300 extend into the wire gaps 11 along the wire grooves 15, and the lead end wires of the winding coil 300 are more convenient to wire.

In some embodiments of the present invention, as shown in fig. 4, 9, 10 and 11, the bottom wall of the slot body structure 206 has a fitting groove 205, and the surface of the backbone body 10 facing the stator core 200 is formed with a boss structure 16, and the boss structure 16 is fitted in the fitting groove 205.

Wherein, after stator insulation skeleton 100 installs in stator core 200, along stator core 200's axial direction, skeleton body 10 is formed with boss structure 16 towards stator core 200's surface, the diapire of cell body structure 206 has fitting groove 205, boss structure 16 assembles in fitting groove 205, boss structure 16 can inlay the fitting groove 205 of locating stator core 200, spacing cooperation with the inner wall of fitting groove 205 through boss structure 16, thereby make stator core 200 and stator insulation skeleton 100 more firm, reliable, and, boss structure 16 inlays the fitting groove 205 of locating stator core 200, be favorable to improving space utilization, reduce the occupation volume of part, consequently, can reduce stator insulation skeleton 100's volume.

In some embodiments of the present invention, as shown in fig. 9 and 11, the backbone body 10 is protruded toward the stator core 200 along the axial direction of the stator core 200 to form the boss structure 16 and the wiring groove 15. The boss structure 16 is disposed corresponding to the wiring groove 15 along the axial direction of the stator insulating frame 100, that is, along the axial direction of the stator core 200. The boss structure 16 may be concavely formed by the bottom wall of the mounting groove 14 toward the stator core 200, so that the boss structure 16 is formed on one side of the skeleton body 10 facing the stator core 200, and the wiring groove 15 is formed on one side of the skeleton body 10 facing 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, so that the space utilization rate is greatly improved, and the occupied volume of parts is further reduced, so that the volume of the stator insulation framework 100 can be reduced. The boss structure 16 and the wiring groove 15 can be the same, so that the processing difficulty is reduced.

In some embodiments of the present invention, as shown in fig. 8 and 11, the stator insulation frame 100 may further include: the insulation part 20, insulation part 20 sets up in the outside edge of skeleton body 10, and wiring breach 11 sets up on insulation part 20.

The insulating portion 20 is disposed at a circumferential edge of the skeleton body 10 along a radial direction of the skeleton body 10, the insulating portion 20 defines a wiring gap 11, and the insulating portion 20 may be assembled to the gap structure 201. The material of the insulating portion 20 and the material of the skeleton body 10 may be the same, for example: the insulating part 20 and the skeletal body 10 are both made of plastic. The insulating portion 20 may be adhered to the skeleton body 10, or the insulating portion 20 may be clamped to the skeleton body 10. After the stator insulating frame 100 is mounted on the stator core 200, the insulating parts 20 are assembled in the notch structure 201, the insulating parts 20 of the stator insulating frames 100 positioned at two sides of the stator core 200 are all assembled in the notch structure 201, the insulating parts 20 of the two stator insulating frames 100 positioned at two sides of the stator core 200 are oppositely arranged, and the insulating parts 20 of the two stator insulating frames 100 positioned at two 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 two winding coils 300 positioned at 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 insulation part 20 has specific insulation function, and the insulation part 20 is positioned between the stator core 200 and the winding coil 300, so that the stator core 200 and the winding coil 300 can be isolated, and the risk of short circuit caused by contact between the stator core 200 and the winding coil 300 is reduced.

In some embodiments of the present invention, as shown in fig. 8, the insulating portion 20 is adapted to abut against the inner wall of the notch structure 201. After the stator insulating framework 100 is mounted on the stator core 200, the insulating portion 20 abuts against the inner wall of the notch structure 201, so that the moving risk of the stator insulating framework 100 relative to the stator core 200 can be reduced, and the assembling stability of the stator insulating framework 100 and the stator core 200 can be improved.

In some embodiments of the present invention, as shown in fig. 11, the insulating portion 20 and the skeletal body 10 are integrally formed, for example: the insulating portion 20 and the skeleton body 10 are integrally injection-molded. Through insulating part 20 and skeleton body 10 integrated into one piece, can reduce insulating part 20 and skeleton body 10 separation risk, further reduce stator core 200 and winding coil 300 contact and take place the short circuit risk to, can reduce the mould quantity of producing stator insulation skeleton 100, can reduce stator insulation skeleton 100 manufacturing cost.

In some embodiments of the present invention, as shown in fig. 7, when the stator insulating frame 100 is assembled in the slot structure 206 of the stator core 200, the circumferential edge of the stator insulating frame 100 protrudes from the corresponding slot structure 206.

The slot body structures 206 are formed on two sides of the stator core 200 along the axial direction of the stator core 200, the stator insulating frameworks 100 on two sides of the stator core 200 are assembled in the corresponding slot body structures 206, when the stator insulating frameworks 100 are assembled in the slot body structures 206, the corresponding slot body structures 206 extend out of the circumferential edges of the stator insulating frameworks 100 along the axial direction of the stator core 200, and it can be understood that the circumferential edges of the stator insulating frameworks 100 protrude out of the slot body structures 206, and the stator insulating frameworks 100 play an insulating role between the winding coil 300 and the stator core 200 so as to realize arrangement of the stator insulating frameworks 100 and the stator core 200.

In some embodiments of the present invention, as shown in fig. 7 and fig. 9-11, the wiring notch 11 and the notch structure 201 are plural, and the plural wiring notches 11 and the plural notch structures 201 are in one-to-one correspondence.

Wherein, a plurality of wiring breach 11 are arranged in proper order along the circumference of stator insulation skeleton 100, and a plurality of breach structures 201 are arranged in proper order along the circumference of stator core 200, and a wiring breach 11 and a breach structure 201 correspond the setting. The number of wire notches 11 and notch structures 201 may be the same.

The wiring gaps 11 and the gap structures 201 can be two, three, four, five, six and the like, the wiring gaps 11 are sequentially arranged at intervals along the circumferential direction of the stator insulation framework 100, and the wiring groove 15 is communicated with one wiring gap 11. When the three-phase power supply is connected, not only is the series connection wiring between the winding coils 300 needed inside the stator assembly 400, but also the series connection wiring is needed for the stator core 200 connected with the in-phase power supply, and because the phases among the stator cores 200 are different, the corresponding stator insulation frameworks 100 are rotated by arranging a plurality of wiring gaps 11 and a plurality of gap structures 201, so that the wiring is convenient, the universality and the utilization rate of the stator insulation frameworks 100 are improved, the production efficiency can be increased, the cost is saved, and the mass production of the stator insulation frameworks 100 is facilitated. It should be noted that, since the wiring groove 15 is communicated with one wiring notch 11, assembly and wiring errors can be effectively avoided, and production efficiency is improved.

In some embodiments of the present invention, as shown in fig. 4 and 9-11, the plurality of wire connection notches 11 and the plurality of notch structures 201 are uniformly arranged along the circumferential direction of the stator core 200.

The present application describes that the wiring gaps 11 and the gap structures 201 are all set to six as examples, the six wiring gaps 11 are uniformly arranged along the circumferential direction of the stator insulation framework 100, the interval between two adjacent wiring gaps 11 is 60 °, the six gap structures 201 are uniformly arranged along the circumferential direction of the stator core 200, and the interval between two adjacent gap structures 201 is 60 °. The spacing angle of the lead ends of the winding coil 300 or the spacing angle of the lead ends and the lead-out ends of the winding coil 300 is a multiple of 60 degrees, so that the universality and the utilization rate of the stator insulation framework 100 are further improved by arranging a plurality of wiring gaps 11 and a plurality of gap structures 201, the production efficiency can be further increased, the cost is further saved, and the mass production of the stator insulation framework 100 is facilitated.

The number of the insulating portions 20 is plural, and the plurality of insulating portions 20 and the plurality of wiring notches 11 are provided in one-to-one correspondence.

In some embodiments of the present invention, as shown in fig. 4, 9 and 10, the backbone body 10 may have a fitting hole 17 extending from an inner edge of the stator insulation backbone 100 to the slot structure 206 along an axial direction of a center hole 208 of the stator body 202.

The middle part of the skeleton body 10 is provided with an assembly hole 17, and the assembly hole 17 penetrates through the skeleton body 10 along the axial direction of the stator insulation skeleton 100. After the stator insulating frame 100 is mounted on the stator core 200, the limiting portion 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 insulating frame 100 is compact, and the size of the stator assembly 400 is reduced.

As shown in fig. 9, the inner wall of the assembly hole 17 is the inner edge of the stator insulation frame 100, the inner edge of the stator insulation frame 100 has a limiting wall 18, the limiting wall 18 is disposed around the assembly hole 17, the limiting wall 18 is configured as the inner wall of the mounting groove 14, and the limiting wall 18 is the inner edge of the stator insulation frame 100. The mounting slot 14 is of annular configuration, the mounting slot 14 being disposed about the retaining wall 18, the mounting slot 14 being configured to nest the winding coil 300. After the stator insulating framework 100 is mounted on the stator core 200, the end portion of the limiting wall 18, which is away from the stator core 200, extends out of the slot structure 206. After the winding coil 300 is mounted in the mounting slot 14, the end of the limiting wall 18, which is away from the stator core 200, extends out of the slot body structure 206, so that the contact risk between the winding coil 300 and the stator core 200 is reduced, and the stator insulation framework 100 plays a better role in insulation.

Further, as shown in fig. 13, the end of the stopper wall 18 forms a mounting step 19, and the mounting step 19 is used for mounting the insulator.

Wherein, the end of the limiting wall 18 far away from the skeleton body 10 is formed with a mounting step 19, and the mounting step 19 is used for mounting an insulating member, which may be insulating paper or insulating film, etc. The stator cores 200 are sequentially stacked, two adjacent stator cores 200 are separated by an insulating piece, the insulating piece is nested at the mounting step 19 of the limiting wall 18, the stator assembly 400 can be compact in structure, the utilization rate of materials is high, and the insulating effect can be achieved.

In some embodiments of the present invention, as shown in fig. 2 and 3, the stator core 200 may be plural, and plural stator cores 200 are sequentially stacked in the axial direction of the stator core 200. The slot structures 206 on both sides of each stator core 40 are used for installing the winding coils 300 of the linear motor, so that the space utilization and the slot filling rate of the stator cores 200 and the stator assemblies 400 are further improved.

The axial direction of the stator insulating frame 100 and the axial direction of the stator core 200 are both Z-directions in fig. 3, and the stator core 200, the stator insulating frame 100, and the winding coil 300 of the present application are all designed as independent components, and are assembled when in use. The stator insulation framework 100 comprehensively surpasses the existing stator insulation framework 100 in the aspects of arrangement space, production efficiency, processing difficulty, convenient maintenance, structural complexity, consistency of parts and the like.

As shown in fig. 1, a stator assembly 400 according to an embodiment of the present invention includes: the end stator core 50 and the middle stator core 40, the middle stator core 40 is disposed between the end stator cores 50, and at least one of the end stator core 50 and the middle stator core 40 includes the stator core 200 of the above-described embodiment.

The number of the end stator cores 50 is two, and the two end stator cores 50 are respectively a terminal end core and a starting end core. The middle stator core 40 is located between the two end stator cores 50, and at least one of the end stator cores 50 and the middle stator core 40 includes the stator core 200 of the above embodiment, and the present application describes taking the middle stator core 40 including the stator core 200 of the above embodiment as an example. Through the at least one side of stator core 200 being formed with cell body structure 206, can all install winding coil 300 in every cell body structure 206, make winding coil 300 and stator core 200 range upon range of setting, at least one deck winding coil 300 is installed to a stator core 200 to promote stator core 200's space utilization and groove full rate, and then promote stator module 400's space utilization and groove full rate.

In some embodiments of the present invention, as shown in fig. 3, one side of the end stator core 50 is formed with a slot structure 206, and both sides of the middle stator core 40 are formed with slot structures 206. In the axial direction of the stator core 200, a slot structure 206 is formed on a surface of the end stator core 50 facing the middle stator core 40, the end stator core 50 forms a slot structure 206, and two sides of the middle stator core 40 may respectively form a slot structure 206. The slot body structure 206 is formed on one side of the end stator core 50, and the slot body structure 206 is formed on both sides of the middle stator core 40, so that the space utilization rate and the slot filling rate of the stator core 200 are further improved, and the space utilization rate and the slot filling rate of the stator assembly 400 are further improved.

In some embodiments of the present invention, an insulating member is provided between the winding coils 300 of the adjacent two stator cores 200. The insulating member may be insulating paper, insulating film, or the like. The plurality of stator cores 200 are sequentially stacked, two adjacent stator cores 200 are separated by an insulating member, and two adjacent winding coils 300 are separated by the insulating member, so that an insulating effect is achieved.

Further, when the end stator core 50, the stator insulating bobbin 100, and the winding coil 300 are assembled, the stator insulating bobbin 100 is assembled to the end stator core 50, and then the winding coil 300 is assembled to the stator insulating bobbin 100. The stator body 202 and the outer edge 203 of the end stator core 50 are integrally formed, so that the structural strength of the end stator core 50 can be improved.

The circumferential edges of the middle stator core 40 and the end stator cores 50 may each have a notch structure 201. The stator insulating framework 100 is assembled with the corresponding stator core 200 in a superposition way, the wiring notch 11 and the notch structure 201 are correspondingly arranged along the axial direction of the stator core 200, and the wiring notch 11 and the notch structure 201 can be connected in series, so that the winding coil 300 is connected in series outside the circumferential direction of the stator insulating framework 100.

Since the thicknesses of the distal end core and the initial end core are thin, the distal end core and the initial end core are fabricated as a unit module. The distal end core and the initial end core are one integral module, i.e., the stator body 202 and the outer rim 203 of the end stator core 50 are integrally formed.

In some embodiments of the present invention, as shown in fig. 4 and 6, the outer peripheral wall of the outer edge portion 203 has a cutout structure 305. Through setting up incision structure 305, can reduce the detent force, reduce thrust fluctuation and bring the negative effect to linear electric motor, can reduce linear electric motor's thrust fluctuation to promote linear electric motor's working property, and also can reduce stator core 200's weight, be favorable to stator module 400's lightweight design.

In some embodiments of the present invention, the stator assembly 400 includes a plurality of middle stator cores 40 and two end stator cores 50, each middle stator core 40 and each end stator core 50 are independent modular units, the winding coils 300 of the same modular unit are in-phase coils, and the in-phase winding coils 300 are wired in a welding manner, so that the conventional design is comprehensively surpassed in various aspects of arrangement space, production efficiency, processing difficulty, maintenance convenience, structural complexity, consistency of parts and the like.

In some embodiments of the present invention, a plurality of winding coils 300 are provided on the stator assembly 400, the plurality of winding coils 300 are three-phase winding coils 300, respectively, and the winding coils 300 are in a flat wire structure, thereby increasing space utilization.

In some embodiments of the present invention, each of the middle stator cores 40 is provided with double-layer winding coils 300, and the double-layer winding coils 300 are connected in series and by welding. Because each middle stator core 40 and each end stator core 50 are independent modularized units, the middle stator core 40 and the two end stator cores 50 are stacked to form the stator assembly 400, the stacking sequence of the stator assembly 400 is to be A phase, B phase and C phase sequentially from the initial end, the modular units in the same phase are connected in series, the connection point is still welded, the operability is good, and the process is simple and is beneficial to production and processing. And the welding spots are more visual in the outside, assembly and welding, so that wiring errors can be avoided, and production efficiency can be improved. The operation space of this kind of mode is big, convenient operation practices thrift man-hour.

According to the linear motor according to the embodiment of the invention, the stator assembly 400 includes the above embodiment, the slot body structures 206 are formed on at least one side of the stator core 200, and the winding coils 300 can be installed in each slot body structure 206, so that the winding coils 300 and the stator core 200 are stacked, and at least one layer of winding coils 300 is installed on one stator core 200, thereby improving the space utilization and the slot filling rate of the stator core 200, and further improving the space utilization and the slot filling rate of the stator assembly 400.

According to the suspension device 500 of the embodiment of the present invention, the linear motor of the above embodiment includes the slot body structures 206 formed on at least one side of the stator core 200, and the winding coil 300 may be installed in each slot body structure 206, so that the winding coil 300 and the stator core 200 are stacked, and at least one layer of winding coil 300 is installed on one stator core 200, thereby improving the space utilization and the slot filling rate of the stator core 200, further improving the space utilization and the slot filling rate of the stator assembly 400, and improving the working performance of the linear motor, so as to improve the performance of the suspension device 500.

According to the vehicle according to the embodiment of the invention, the suspension device 500 includes the above embodiment, the slot body structures 206 are formed on at least one side of the stator core 200, and the winding coil 300 can be installed in each slot body structure 206, so that the winding coil 300 and the stator core 200 are stacked, and at least one layer of winding coil 300 is installed on one stator core 200, thereby improving the space utilization and the slot filling rate of the stator core 200, further improving the space utilization and the slot filling rate of the stator assembly 400, and improving the working performance of the linear motor, further improving the performance of the suspension device 500, and further improving the vehicle performance.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.

Claims (24)

1. A stator core of a linear motor, comprising:

and the stator core is axially provided with a groove body structure at least on one side, and the groove body structure is used for installing a winding coil of the linear motor.

2. The stator core of a linear motor according to claim 1, wherein the groove structures are formed on both sides of the stator core in an axial direction of the stator core.

3. The stator core of a linear motor according to claim 1, wherein the stator core includes: the stator comprises a stator body and an outer edge part, wherein the outer edge part is arranged on the outer peripheral wall of the stator body, the two sides of the outer edge part are protruded out of the stator body along the axial direction of the stator core, and the groove body structures are formed on the two sides of the stator core.

4. The stator core of a linear motor according to claim 1, wherein a center hole is formed in the stator body, and an inner wall of the center hole is provided with a limit portion.

5. The stator core of a linear motor according to claim 4, wherein the limit portion protrudes from the stator body in an axial direction of the center hole.

6. The stator core of a linear motor according to any one of claims 1 to 5, further comprising: the stator insulation framework is used for installing the winding coil and is arranged in the groove body structure.

7. The stator core of claim 6, wherein the stator insulating frame is stacked with the stator core, a circumferential edge of the stator core has a notch structure, a circumferential edge of the stator insulating frame has a wiring notch, and the wiring notch corresponds to the notch structure along an axial direction of the stator core.

8. The stator core of a linear motor of claim 7, wherein the wire gap corresponds to the gap structure in a radial direction of the stator core.

9. The stator core of a linear motor according to claim 7, wherein the stator insulation frame comprises: the framework body, the framework body is formed with the wiring breach, follows stator core's axial, the framework body deviates from stator core's one side is formed with and is used for the installation winding coil's mounting groove, the mounting groove with the wiring breach intercommunication.

10. The stator core of claim 9, wherein the bottom wall of the mounting slot is formed with a wiring slot, and the wiring notch and the mounting slot are both in communication with the wiring slot.

11. The stator core of a linear motor according to claim 10, wherein the bottom wall of the slot structure has an assembling groove, and a boss structure is formed on a surface of the backbone body facing the stator core, the boss structure being assembled to the assembling groove.

12. The stator core of a linear motor according to claim 11, wherein the skeleton body is protruded in a direction toward the stator core in an axial direction of the stator core to form the boss structure and the wiring groove.

13. The stator core of a linear motor of claim 9, wherein the stator insulation frame further comprises: the insulation part is arranged at the outer side edge of the framework body, and the wiring notch is arranged on the insulation part.

14. The stator core of a linear motor of claim 6, wherein a circumferential edge of the stator insulation frame extends beyond the respective slot structure when the stator insulation frame is assembled within the slot structure.

15. The stator core of a linear motor according to claim 7, wherein the wiring gap and the gap structure are plural, and plural wiring gaps and plural gap structures are in one-to-one correspondence.

16. The stator core of a linear motor according to claim 15, wherein the plurality of wiring notches and the plurality of notch structures are uniformly arranged along the circumferential direction of the stator core.

17. The stator core of a linear motor according to claim 6, wherein the stator insulation frame has an assembly hole, and an inner edge of the stator insulation frame protrudes from the slot structure in an axial direction of the center hole of the stator body.

18. The stator core of a linear motor according to any one of claims 1 to 5, wherein a plurality of the stator cores are stacked in order in an axial direction of the stator core.

19. A stator assembly of a linear motor comprising end stator cores and a middle stator core, the middle stator core being disposed between the end stator cores, at least one of the end stator cores and the middle stator core comprising the stator core of any one of claims 1-18.

20. The stator assembly of claim 19, wherein the slot structure is formed on one side of the end stator core and the slot structure is formed on both sides of the middle stator core.

21. The stator assembly of claim 19, wherein insulation is provided between winding coils of adjacent two of the stator cores.

22. A linear motor comprising a stator assembly according to any one of claims 19-21.

23. A suspension device comprising the linear motor according to claim 22.

24. A vehicle comprising the suspension device according to claim 23.