Primary assembly, linear motor, electromagnetic suspension and vehicle

Abstract

The utility model discloses a primary assembly, a linear motor, an electromagnetic suspension and a vehicle. The primary assembly comprises a stator iron core, a stator winding and an insulation framework. The stator iron core is provided with a plurality of stator grooves which are arranged along the axial direction, and the stator grooves extend along the circumferential direction of the stator iron core to form a ring shape; the insulation framework comprises a framework body, the framework body is arranged in the stator groove and extends in the circumferential direction of the stator iron core to form a ring shape, a wire groove for containing the stator winding is formed in the framework body, a baffle extending to the outer circumferential wall of the stator iron core is arranged on the framework body, and the baffle isolates an outgoing line of the stator winding from the stator iron core. According to the primary assembly provided by the utility model, the primary assembly can prevent the stator winding from being in contact with the stator iron core to cause short circuit, increase the creepage distance and enhance the insulating property, and meanwhile can protect the outgoing line from being scratched by the stator iron core, so that the safety and the reliability are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a primary component, a linear motor, an electromagnetic suspension and a vehicle. Background Art

[0002] In the related art, the primary components used in linear motors generally include a stator core and a stator winding. The stator core and the stator winding cannot be in direct contact, otherwise a short circuit or damage will occur. The existing stator core is usually enclosed in a layer of skeleton by injection molding to achieve the purpose of insulation. However, the insulating skeleton has a simple structure and insufficient reliability, and cannot protect the stator core. How to effectively and reliably isolate the electrical contact between the stator winding and the stator core and protect the stator core has become a problem. In addition, the insulation performance of the traditional insulating skeleton is also difficult to meet the growing market demand, and it is easy to have insufficient creepage distance, which seriously affects the insulation effect and product reliability. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a primary assembly, which can prevent the stator winding from short-circuiting due to contact with the stator core, increase the creepage distance and enhance the insulation performance, and at the same time protect the lead wire from being scratched by the stator core, thereby improving safety and reliability.

[0004] The utility model also provides a linear motor, which comprises the above-mentioned primary component.

[0005] The utility model also provides an electromagnetic suspension, which includes the above-mentioned linear motor.

[0006] The utility model also provides a vehicle, which comprises the electromagnetic suspension mentioned above.

[0007] According to the primary component of the embodiment of the utility model, it includes: a stator core, a stator winding and an insulating frame. The stator core has a plurality of stator slots arranged along the axial direction, and the stator slots extend in a ring shape along the circumferential direction of the stator core; the insulating frame includes a frame body, the frame body is arranged in the stator slots and extends in a ring shape along the circumferential direction of the stator core, the frame body has wire slots for accommodating the stator winding, and the frame body is provided with a baffle extending to the outer peripheral wall of the stator core, and the baffle isolates the lead wires of the stator winding from the stator core.

[0008] According to the primary assembly of the embodiment of the utility model, by setting the insulating frame arranged in the stator slot of the stator core as a frame body extending in a ring shape along the circumferential direction of the stator core, and providing the wire slots for accommodating the stator winding in the frame body, the stator winding can be wound around the stator core in the wire slots and effectively isolate the electrical contact between the stator winding and the stator core, thereby preventing short circuit or damage caused by current leakage. By providing a baffle extending to the outer peripheral wall of the stator core on the frame body, the contact short circuit between the lead wire and the stator core can be prevented, the creepage distance can be increased, the insulation performance can be enhanced, and the lead wire can be protected from being scratched by the stator core, thereby enhancing the safety and reliability of the primary assembly.

[0009] According to some embodiments of the utility model, the outer peripheral wall of the skeleton body has a plurality of recessed portions arranged at intervals along the circumferential direction of the stator core, the recessed portions penetrate the skeleton body in the axial direction of the skeleton body, at least one of the two sides of the recessed portion along the axial direction of the stator core is provided with the baffle, and the baffle is located radially outside the stator core.

[0010] In some embodiments of the utility model, the skeleton body includes a first skeleton and a second skeleton. The first skeleton is annular, and is provided with a first wire slot and a plurality of first wire openings connected to the first wire slot; the second skeleton is annular, and is provided with a second wire slot and a plurality of second wire openings connected to the second wire slot, the first skeleton and the second skeleton are arranged and connected in the axial direction of the stator core, the first wire slot and the second wire slot are opposite and connected to form the wire slot, and the recessed portion passes through the first skeleton and the second skeleton in the axial direction of the skeleton body.

[0011] In some embodiments of the utility model, the baffle includes a first baffle and a second baffle, the number of the recessed portions is n, and a wire passing opening connected to the wire slot is provided on the bottom wall of at least one of the recessed portions, and the first skeleton is provided with the first baffle extending in a direction away from the second skeleton on a side of one of the wire passing openings facing away from the second skeleton, and the second skeleton is provided with the second baffle extending in a direction away from the first skeleton on a side of n-1 of the recessed portions facing away from the first skeleton, wherein at least one of the n-1 recessed portions has the wire passing opening provided on its bottom wall, and the lead wires of the stator winding in the wire slot are led out from the wire passing opening having both the first baffle and the second baffle.

[0012] In some embodiments of the present invention, a groove is provided on the side of the second skeleton facing away from the first skeleton, and the groove is arranged opposite to the recessed portion of the second skeleton where the second baffle is not provided, and the groove is used to cooperate with the free end of the first baffle on the first skeleton.

[0013] In some embodiments of the utility model, a first boss is provided at the radial inner end of the first skeleton on the side facing the second skeleton, and the first boss extends in a ring shape along the circumferential direction of the first skeleton; a second boss is provided at the radial inner end of the second skeleton on the side facing the first skeleton, and the second boss extends in a ring shape along the circumferential direction of the second skeleton; the first boss and the second boss are stacked in the radial direction of the stator core.

[0014] In some embodiments of the present invention, the second boss is located radially outside the first boss, and the free end of the second boss abuts against the first skeleton; or, the first boss is located radially outside the second boss, and the free end of the first boss abuts against the second skeleton.

[0015] In some embodiments of the utility model, a third boss is provided at the radial outer end of the first skeleton on the side facing the second skeleton, and the third boss extends in a ring shape along the circumferential direction of the first skeleton; a fourth boss is provided at the radial outer end of the second skeleton on the side facing the first skeleton, and the fourth boss extends in a ring shape along the circumferential direction of the second skeleton; the recessed portion is formed on the third boss and the fourth boss, and the third boss and the fourth boss are stacked in the radial direction of the stator core.

[0016] In some embodiments of the present invention, the second boss and the fourth boss are located between the first boss and the third boss or the first boss and the third boss are located between the second boss and the fourth boss, wherein the fourth boss and the third boss are snap-connected and / or the first boss and the second boss are snap-connected.

[0017] In some embodiments of the present invention, in the projection of a plane perpendicular to the axial direction of the stator core, the baffle is a curved plate protruding toward the axial direction of the stator core.

[0018] In some embodiments of the present invention, the lead wire of the stator winding located on the radial outer side of the stator core is located in the recessed portion and is introduced into the wire slot at the position of the recessed portion or led out from the wire slot.

[0019] According to some embodiments of the utility model, the two ends of the insulating skeleton along the axial direction of the stator core respectively abut against the opposite side walls of the stator slot; and / or the radial inner end surface of the insulating skeleton abuts against the bottom wall of the stator slot.

[0020] A linear motor according to an embodiment of the utility model includes: the above-mentioned stator assembly.

[0021] According to the linear motor of the embodiment of the utility model, by using a primary assembly provided with an insulating skeleton, and by providing a skeleton body having wire slots for accommodating stator windings in the stator slots of the stator core and providing a baffle extending to the outer peripheral wall of the stator core on the skeleton body, the electrical contact between the stator winding and the stator core can be effectively isolated to prevent short circuit or damage caused by current leakage. The baffle also increases the creepage distance, can enhance the insulation performance, and can also protect the lead wire from being scratched by the stator core, thereby enhancing the safety and reliability of the primary assembly, and then enhancing the safety and reliability of the linear motor, so that the product quality of the linear motor is guaranteed.

[0022] The electromagnetic suspension according to the embodiment of the utility model includes: the above-mentioned linear motor.

[0023] According to the electromagnetic suspension of the embodiment of the utility model, by using a linear motor provided with a primary assembly having the above-mentioned insulating skeleton, and by providing a skeleton body having wire slots for accommodating stator windings in the stator slots of the stator core and providing a baffle extending to the outer peripheral wall of the stator core on the skeleton body, the electrical contact between the stator winding and the stator core can be effectively isolated to prevent short circuit or damage caused by current leakage. The baffle also increases the creepage distance, can enhance the insulation performance, and can also protect the lead wire from being scratched by the stator core, thereby enhancing the safety and reliability of the linear motor, and then enhancing the safety and reliability of the electromagnetic suspension, so that the product quality of the electromagnetic suspension is guaranteed.

[0024] A vehicle according to an embodiment of the utility model includes: the above-mentioned electromagnetic suspension.

[0025] According to the vehicle of the embodiment of the utility model, by providing a primary component having the above-mentioned insulating skeleton in the linear motor of the electromagnetic suspension, and by providing a skeleton body having a wire slot that can accommodate the stator winding in the stator slot of the stator core and providing a baffle extending to the outer peripheral wall of the stator core on the skeleton body, the electrical contact between the stator winding and the stator core can be effectively isolated to prevent short circuit or damage caused by current leakage. The baffle also increases the creepage distance, can enhance the insulation performance, and can also protect the lead wire from being scratched by the stator core, thereby enhancing the safety and reliability of the electromagnetic suspension, and then enhancing the safety and reliability of the vehicle, so that the product quality of the vehicle is guaranteed.

[0026] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] 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:

[0028] Figure 1 is a front view of a primary assembly according to an embodiment of the utility model;

[0029] Figure 2 is a cross-sectional view of a primary assembly according to an embodiment of the utility model;

[0030] Figure 3 yes Figure 2 The enlarged view of point B in the middle;

[0031] Figure 4 is a three-dimensional diagram of an insulating frame of a primary assembly according to an embodiment of the utility model;

[0032] Figure 5 is a cross-sectional view of an insulating skeleton of a primary assembly according to an embodiment of the utility model;

[0033] Figure 6 yes Figure 4 Enlarged view of point C in the middle;

[0034] Figure 7 is a three-dimensional view of a first frame of an insulating frame of a primary assembly according to an embodiment of the utility model;

[0035] Figure 8 is a stereoscopic view of the first frame of the insulating frame of the primary assembly according to an embodiment of the utility model from another perspective;

[0036] Fig. 9 is a perspective view of a second frame of the insulating frame of the primary assembly according to an embodiment of the utility model;

[0037] Fig.10 is a stereoscopic view of the second frame of the insulating frame of the primary assembly according to an embodiment of the utility model from another perspective;

[0038] Fig.11 is a partial assembly schematic diagram of a primary assembly according to an embodiment of the utility model;

[0039] Fig.12 yes Fig.10 Enlarged view of point D in the middle.

[0040] Reference numerals:

[0041] 100. Primary components;

[0042] 1. Insulating frame; 11. Frame body; 11a. Frame body No. 1; 11b. Frame body No. 2; 11c. Frame body No. 3; 111. Wire slot; 112. Baffle; 113. Recessed portion; 114. Wire opening; 114a. Wire opening No. 1; 114b. Wire opening No. 2; 114c. Wire opening No. 3;

[0043] 2. first frame; 21. first wire slot; 22. first baffle; 23. first boss; 24. third boss; 241. first buckle;

[0044] 3. second frame; 31. second wire slot; 32. second baffle; 33. groove; 34. second boss; 35. fourth boss; 351. second buckle;

[0045] 4. stator core; 41. stator slot; 42. stator core stack; 43. step;

[0046] 5. stator winding; 51. lead wire; 52. coil. DETAILED DESCRIPTION

[0047] The embodiments of the present invention are described in detail below, and examples of the embodiments 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.

[0048] In the description of the present utility model, it is necessary to understand that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0049] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0050] Reference below Figure 1-Figure 12 A primary assembly 100 according to an embodiment of the present invention is described.

[0051] like Figure 4 As shown, the primary component 100 according to the embodiment of the present utility model includes a stator core 4 , a stator winding 5 and an insulating frame 1 .

[0052] Specifically, Figure 1 , Figure 2 and Figure 3 As shown, the stator core 4 has a plurality of stator slots 41 arranged along the axial direction, and the stator slots 41 extend in a ring shape along the circumferential direction of the stator core 4. The stator winding 5 is wound along the circumferential direction of the stator core 4, as shown in FIG. Figure 2 and Figure 3 In the example shown, the stator core 4 can adopt an axial segmented structure, and can be assembled by assembling a plurality of stator core blocks 42 with substantially the same axial thickness to form the stator core 4 as a whole, thereby facilitating the assembly of the stator core 4 and the stator winding 5. The stator core block 42 can be configured in a disc shape, and a boss can be provided on one side of the stator core block 42 in the thickness direction, and two adjacent stator core blocks 42 define a stator slot 41, so that the stator winding 5 can be wound in the annular stator slot 41 along the circumference of the stator core 4, and the structural design is reasonable.

[0053] Furthermore, if Figure 2 , Figure 3 and Figure 4As shown, the insulating skeleton 1 includes a skeleton body 11, which is arranged in the stator slot 41 and extends in a ring shape along the circumferential direction of the stator core 4. The skeleton body 11 has a wire slot 111 for accommodating the stator winding 5. The stator slot 41 is a plurality of wire slots 111 arranged at intervals along the axial direction of the stator core 4. The skeleton body 11 is a plurality of wire slots 111 corresponding to the stator slot 41. The skeleton body 11 can be arranged in each stator slot 41. The skeleton body 11 and the wire slot 111 are in a ring shape, which is conducive to the stator winding 5 winding around the stator core 4 in the wire slot 111. By providing the skeleton body 11 that can accommodate the stator winding 5, the stator core 4 and the stator winding 5 can be effectively separated. The skeleton body 11 can be made of insulating material, which can effectively isolate the electrical contact between the stator winding 5 and the stator core 4, prevent short circuit or damage caused by current leakage, and enhance the safety and reliability of the primary component 100.

[0054] Furthermore, the frame body 11 is provided with a baffle 112 extending to the outer peripheral wall of the stator core 4, and the baffle 112 isolates the lead wire 51 of the stator winding 5 from the stator core 4. The stator winding 5 includes a coil 52 and a lead wire 51, the coil 52 is wound around the axis of the stator core 4 in the wire slot 111, the lead wire 51 is the part of the stator winding 5 extending out of the wire slot 111, and the two ends of the lead wire 51 are respectively connected to the coil 52 in different frame bodies 11. The baffle 112 extends to the outer peripheral wall of the stator core 4, so that the baffle 112 can separate the lead wire 51 from the stator core 4, effectively isolating the electrical contact between the lead wire 51 and the stator core 4, and the baffle 112 also increases the creepage distance, which can enhance the insulation performance of the insulating frame 1 and the primary assembly 100, and also protect the lead wire 51 from being scratched by the stator core 4, thereby enhancing the safety and reliability of the primary assembly 100.

[0055] In addition, the lead wire 51 extends along the extension direction of the baffle 112. The baffle 112 can guide the direction of the lead wire 51 to a certain extent, which is beneficial for connecting the lead wire 51 with the coils 52 in different skeleton bodies 11, and can avoid the lead wire 51 from being scattered randomly outside the stator slot 41, thereby ensuring the reliability of the primary component 100.

[0056] According to the primary component 100 of the embodiment of the utility model, by setting the insulating skeleton 1 arranged in the stator slot 41 of the stator core 4 as a skeleton body 11 extending in a ring shape along the circumferential direction of the stator core 4, and providing a wire slot 111 that can accommodate the stator winding 5 in the skeleton body 11, the stator winding 5 can be wound around the stator core 4 in the wire slot 111 and effectively isolate the electrical contact between the stator winding 5 and the stator core 4, thereby preventing short circuit or damage caused by current leakage. By providing a baffle 112 extending to the outer peripheral wall of the stator core 4 on the skeleton body 11, the contact short circuit between the lead wire 51 and the stator core 4 can be prevented, and the creepage distance can be increased, the insulation performance can be enhanced, and the lead wire 51 can be protected from being scratched by the stator core 4, thereby enhancing the safety and reliability of the primary component 100.

[0057] In some embodiments of the present invention, Figure 4 , Fig.11 and Fig.12 As shown, the outer peripheral wall of the skeleton body 11 has a plurality of recessed portions 113 arranged at intervals along the circumferential direction of the stator core 4, and the recessed portions 113 penetrate the skeleton body 11 in the axial direction of the skeleton body 11, and at least one of the two sides of at least one recessed portion 113 along the axial direction of the stator core 4 is provided with a baffle 112, and the baffle 112 is located on the radial outer side of the stator core 4. The recessed portions 113 arranged on the outer peripheral wall of the skeleton body 11 and penetrating the skeleton body 11 in the axial direction can avoid the passage for the lead wire 51 to extend, prevent the lead wire 51 from protruding outside, and reduce the risk of the lead wire 51 being hit and scratched by foreign objects. In addition, the recessed portions 113 allow the lead wire 51 to extend along the inner wall of the recessed portions 113, which plays a role in blocking and gathering the lead wire 51 to a certain extent.

[0058] exist Figure 4 and Fig.11 In the example shown, each skeleton body 11 is provided with three recessed portions 113, and the primary component 100 has a three-phase stator winding 5. The three recessed portions 113 correspond one-to-one to the three-phase lead-out wires 51, so that the three-phase lead-out wires 51 can respectively extend in the extension channels formed by the corresponding recessed portions 113, thereby effectively separating the three-phase lead-out wires 51 and avoiding mutual entanglement and contact between the lead-out wires 51, thereby greatly reducing the risk of short circuit and improving the safety and reliability of the primary component 100.

[0059] It is understandable that at least one of the recessed portions 113 is provided with a baffle 112 located on the radially outer side of the stator core 4, so as to cooperate with the recessed portion 113 to guide the direction of the lead wire 51. At the same time, the baffle 112 is located on the radially outer side of the stator core 4, which can isolate the lead wire 51 and the stator core 4, play an insulating and protective role, prevent the lead wire 51 from short-circuiting due to contact with the stator core 4, and prevent the lead wire 51 from being scratched by the stator core 4. Among them, the baffle 112 can be provided on one of the two sides of the recessed portion 113 along the axial direction of the stator core 4, and of course, the baffle 112 can also be provided on both sides of the recessed portion 113 along the axial direction of the stator core 4.

[0060] In some embodiments of the present invention, Figure 4 , Figure 7 and Fig. 9 As shown, the skeleton body 11 includes: a first skeleton 2 and a second skeleton 3. The first skeleton 2 is annular, and a first wire slot 21 is provided on the first skeleton 2; the second skeleton 3 is annular, and a second wire slot 31 is provided on the second skeleton 3. The first skeleton 2 and the second skeleton 3 are arranged and connected in the axial direction of the stator core 4. The first wire slot 21 and the second wire slot 31 are opposite and connected to form a wire slot 111, and the recessed portion 113 passes through the first skeleton 2 and the second skeleton 3 in the axial direction of the skeleton body 11. It can be understood that the first skeleton 2 and the second skeleton 3 are annular, which is conducive to the coil 52 of the stator winding 5 being wound around the stator core 4 in the annular first wire slot 21 and the second wire slot 31. By setting the skeleton body 11 as the first skeleton 2 and the second skeleton 3, it is convenient to assemble the stator winding 5 into the skeleton body 11, which is convenient for operation and processing.

[0061] In some embodiments of the present invention, Figure 4 As shown, combined Figure 7 , Figure 8 , Fig. 9 and Fig.10 The baffle 112 includes a first baffle 22 and a second baffle 32. The number of the recessed parts 113 is n. The bottom wall of at least one recessed part 113 is provided with a wire opening 114 connected with the wire slot 111. The first frame 2 is provided with a first baffle 22 extending in a direction away from the second frame 3 on one of the wire openings 114 away from the second frame 3. The second frame 3 is provided with a second baffle 32 extending in a direction away from the first frame 2 on the side away from the first frame 2 of the n-1 recessed parts 113. The wire opening 114 connected with the wire slot 111 is provided on the bottom wall of the recessed part 113, so that the lead wire 51 can extend from or into the wire slot 111 at the wire opening 114, so that the two ends of the lead wire 51 are connected with the coils 52 of the same phase stator winding 5 in different frame bodies 11, respectively, to ensure the performance of the primary assembly 100.

[0062] It should be noted that the first skeleton 2 is provided with a recessed portion 113 with a wire-passing opening 114 having a first baffle 22, and the position of the recessed portion 113 of the second skeleton 3 without a second baffle 32 is not opposite to each other. Therefore, when the first skeleton 2 and the second skeleton 3 are assembled, one of the recessed portions 113 with a wire-passing opening 114 is provided with a first baffle 22 and a second baffle 32 on both sides along the axial direction of the stator core 4, respectively, and one of the recessed portions 113 is not provided with a baffle 112 on both sides along the axial direction of the stator core 4, and the other n-2 recessed portions 113 are provided with a second baffle 32 on one of the two sides along the axial direction of the stator core 4. By setting the baffle 112 in the above-mentioned manner, the lead wire 51 can be guided to be connected to the coils 52 in different skeleton bodies 11 under the mutual correspondence and cooperation of the skeleton bodies 11 in multiple stator slots 41, and the multi-phase stator winding 5 can be separated to prevent the multi-phase stator winding 5 from being entangled, contacted and short-circuited. The structural design is reasonable and the reliability of the primary component 100 can be improved.

[0063] For example, Figure 4 and Fig.11 In the example shown, each frame body 11 is provided with three recessed portions 113, and the bottom walls of the three recessed portions 113 are provided with wire openings 114 connected to the wire slots 111, and the first frame 2 is provided with a first baffle 22, and the second frame 3 is provided with two second baffles 32. At this time, the frame body 11 has a first wire opening 114a, a second wire opening 114b, and a third wire opening 114c. The first wire opening 114a is provided with a first baffle 22 and a second baffle 32 on both sides along the axial direction of the stator core 4, respectively, the second wire opening 114b is provided with a second baffle 32 on one of the two sides along the axial direction of the stator core 4, and the third wire opening 114c is not provided with baffles 112 on both sides along the axial direction of the stator core 4.

[0064] like Fig.11 and Fig.12In the example shown, a plurality of skeleton bodies 11 are stacked along the axial direction of the stator core 4, and the recessed portions 113 on each skeleton body 11 are arranged opposite to each other. The skeleton body 11 includes a first skeleton body 11a, a second skeleton body 11b, and a third skeleton body 11c. The first wire opening 114a on the first skeleton body 11a, the second wire opening 114b on the second skeleton body 11b, and the third wire opening 114c on the third skeleton body 11c are opposite to each other in the axial direction of the stator core 4. The lead wire 51 is at the No. 1 wire opening 114a on the No. 1 frame body 11a, and is guided by the first baffle 22 from above to enter the No. 1 wire opening 114a on the No. 1 frame body 11a and is connected to the coil 52 in the wire slot 111. The coil 52 is wound layer by layer into a pancake shape around the axis of the stator core 4 in the wire slot 111, and then extends from the No. 1 wire opening 114a on the No. 1 frame body 11a. The lead wire 51 is at the No. 1 wire opening 114a on the No. 1 frame body 11a, and is guided by the second baffle 32 to pass along the axis of the stator core 4. The lead-out wire 51 extends toward the No. 2 wire passing opening 114b of the No. 2 frame body 11b in the axial direction, and continues to extend in the axial direction of the stator core 4 under the guidance of the second baffle plate 32 at the No. 2 wire passing opening 114b of the No. 2 frame body 11b and passes through the No. 3 wire passing opening 114c of the No. 3 frame body 11c, and then enters the No. 1 wire passing opening 114a of the No. 1 frame body 11a under the guidance of the first baffle plate 22 at the No. 1 wire passing opening 114a of the No. 1 frame body 11a and is connected with the coil 52 in the wire slot 111, and the cycle is repeated.

[0065] In some embodiments of the present invention, Fig.10 , Fig.11 and Fig.12 As shown, a groove 33 is provided on the side of the second frame 3 facing away from the first frame 2. The groove 33 is arranged opposite to the recessed portion 113 on the second frame 3 where the second baffle 32 is not provided. The groove 33 is used to cooperate with the free end of the first baffle 22 on the first frame 2. The free end of the first baffle 22 can extend into the groove 33, thereby increasing the length of the first baffle 22, thereby increasing the creepage distance and enhancing the insulation performance. Fig.12 As shown, taking the above-mentioned No. 1 wire opening 114a, No. 2 wire opening 114b and No. 3 wire opening 114c as examples, the free end of the first baffle 22 at the No. 1 wire opening 114a can extend into the groove 33 at the No. 3 wire opening 114c, thereby increasing the creepage distance and enhancing the insulation performance.

[0066] In some embodiments of the present invention, Figure 5 and Figure 6 As shown, combined Figure 7 , Figure 8 , Fig. 9 and Fig.10A first boss 23 is provided at the radial inner end of the first skeleton 2 on the side facing the second skeleton 3, and the first boss 23 extends in a ring shape along the circumferential direction of the first skeleton 2. A second boss 34 is provided at the radial inner end of the second skeleton 3 on the side facing the first skeleton 2, and the second boss 34 extends in a ring shape along the circumferential direction of the second skeleton 3. The first boss 23 and the second boss 34 are stacked in the radial direction of the stator core 4.

[0067] It can be understood that the first boss 23 can form the radial inner wall of the first wire slot 21, and the second boss 34 can form the radial inner wall of the second wire slot 31. The first boss 23 and the second boss 34 can separate the stator winding 5 from the stator core 4 in the radial direction of the stator core 4, preventing the stator winding 5 from short-circuiting with the stator core 4 in the wire slot 111, thereby ensuring the insulation performance of the skeleton body 11 and enhancing the safety and reliability of the primary assembly 100. The first boss 23 and the second boss 34 are stacked so that the first boss 23 and the second boss 34 fit together, which can increase the creepage distance of the skeleton body 11, thereby improving the insulation performance of the insulating skeleton 1, and further enhancing the safety and reliability of the primary assembly 100.

[0068] In some embodiments of the present invention, Figure 5 and Figure 6 As shown, combined Figure 7 , Figure 8 , Fig. 9 and Fig.10 The second boss 34 is located radially outward of the first boss 23, and the free end of the second boss 34 abuts against the first skeleton 2, so that a supporting force can be generated between the first skeleton 2 and the free end of the second boss 34, which is beneficial to enhancing the connection stability between the first skeleton 2 and the second skeleton 3.

[0069] In another embodiment of the utility model, the first boss 23 is located radially outside the second boss 34, and the free end of the first boss 23 abuts against the second skeleton 3, so that a supporting force can be generated between the second skeleton 3 and the free end of the first boss 23, which is beneficial to enhance the connection stability between the first skeleton 2 and the second skeleton 3.

[0070] In some embodiments of the present invention, Figure 5 and Figure 6 As shown, combined Figure 7 , Figure 8 , Fig. 9 and Fig.10A third boss 24 is provided at the radial outer end of the first skeleton 2 on the side facing the second skeleton 3, and the third boss 24 extends in a ring shape along the circumferential direction of the first skeleton 2. A fourth boss 35 is provided at the radial outer end of the second skeleton 3 on the side facing the first skeleton 2, and the fourth boss 35 extends in a ring shape along the circumferential direction of the second skeleton 3. A recessed portion 113 is formed on the third boss 24 and the fourth boss 35, and the third boss 24 and the fourth boss 35 are stacked in the radial direction of the stator core 4.

[0071] It can be understood that the third boss 24 can form the radial outer wall of the first wire slot 21, and the fourth boss 35 can form the radial outer wall of the second wire slot 31. The third boss 24 and the fourth boss 35 can limit the stator winding 5 at the radial outer end of the skeleton body 11 to prevent the stator winding 5 from protruding from the wire slot 111 and contacting the stator core 4 to short-circuit. At the same time, the third boss 24 and the fourth boss 35 can protect the stator winding 5 in the wire slot 111 in an annular shape to prevent the stator winding 5 from being collided and worn by foreign objects. At the same time, the recessed portion 113 is formed on the third boss 24 and the fourth boss 35, and the recessed portion 113 passes through the third boss 24 and the fourth boss 35 in the axial direction of the skeleton body 11, which is convenient for processing and conducive to assembly. Among them, the third boss 24 and the fourth boss 35 are stacked so that the third boss 24 and the fourth boss 35 fit together, which can increase the creepage distance of the skeleton body 11, thereby improving the insulation performance of the insulating skeleton 1, and further enhancing the safety and reliability of the primary component 100.

[0072] In some embodiments of the present invention, Figure 4 , Figure 5 and Figure 6 As shown, the second boss 34 and the fourth boss 35 are located between the first boss 23 and the third boss 24 or the first boss 23 and the third boss 24 are located between the second boss 34 and the fourth boss 35, wherein the fourth boss 35 and the third boss 24 are snap-connected and / or the first boss 23 and the second boss 34 are snap-connected. The second boss 34 and the fourth boss 35 are located between the first boss 23 and the third boss 24, which is convenient for operators to assemble the second boss 34 and the fourth boss 35 of the second skeleton 3 into the first wire groove 21 of the first skeleton 2. The first boss 23 and the third boss 24 are located between the second boss 34 and the fourth boss 35, which is convenient for operators to assemble the first boss 23 and the third boss 24 of the first skeleton 2 into the second wire groove 31 of the second skeleton 3. The operation is convenient and the connection stability of the first skeleton 2 and the second skeleton 3 can be ensured.

[0073] Among them, the snap-fit ​​connection between the first boss 23 and the second boss 34 can realize the fixed connection between the radial inner ends of the first skeleton 2 and the second skeleton 3, and the snap-fit ​​connection between the fourth boss 35 and the third boss 24 can realize the fixed connection between the radial outer ends of the first skeleton 2 and the second skeleton 3, which is convenient for assembly and disassembly, and is convenient for later maintenance.

[0074] For example, Figure 6 , Figure 7 and Fig. 9 In the example shown, the second boss 34 and the fourth boss 35 are located between the first boss 23 and the third boss 24, the inner circumferential wall of the third boss 24 is provided with a plurality of first clips 241 protruding toward the axial direction of the stator core 4, and the plurality of first clips 241 are arranged at intervals along the circumferential direction of the third boss 24, the outer circumferential wall of the fourth boss 35 is provided with a plurality of second clips 351 protruding away from the axial direction of the stator core 4, and the plurality of second clips 351 are arranged at intervals along the circumferential direction of the fourth boss 35, the number and positions of the first clips 241 and the second clips 351 correspond to each other, and the fourth boss 35 and the third boss 24 can be snap-connected by cooperation with the first clips 241 and the second clips 351, thereby achieving a fixed connection between the first skeleton 2 and the second skeleton 3, and the structure is simple and easy to assemble.

[0075] In some embodiments of the present invention, Figure 4 and Fig.11 As shown, in the projection of the plane perpendicular to the axial direction of the stator core 4, the baffle 112 is a curved plate protruding toward the axial direction of the stator core 4. The projections of the baffle 112 and the recessed portion 113 in the plane perpendicular to the axial direction of the stator core 4 are the same, so that the baffle 112 can cooperate with the recessed portion 113 to avoid the channel for the lead wire 51 to extend, prevent the lead wire 51 from protruding outside, and reduce the risk of the lead wire 51 being hit and scratched by foreign objects. At the same time, the baffle 112 can also better guide and gather the lead wire 51, thereby ensuring the performance and reliability of the primary assembly 100.

[0076] In some embodiments of the present invention, Figure 1 and Fig.11As shown, the lead wire 51 of the stator winding 5 located radially outside the stator core 4 is located in the recessed portion 113 and is introduced into the wire slot 111 at the position of the recessed portion 113 or is led out from the wire slot 111. The stator winding 5 includes a coil 52 and a lead wire 51. The coil 52 is wound into a pancake shape around the axis of the stator core 4 in the wire slot 111. The lead wire 51 is the part of the stator winding 5 extending out of the wire slot 111. The two ends of the lead wire 51 are respectively connected to the coil 52 in different skeleton bodies 11. The lead wire 51 is located radially outside the stator core 4 and is routed in the recessed portion 113. At the recessed portion 113 where the wire passing opening 114 with the first baffle 22 and the second baffle 32 is provided, the lead wire 51 enters the wire slot 111 under the guidance of the first baffle 22 and is led out of the wire slot 111 by the second baffle 32. The two ends of the lead wire 51 are respectively connected to the same-phase coils 52 in different skeleton bodies 11 , thereby completing the routing of the stator winding 5 in the primary component 100 and ensuring the performance of the primary component 100 .

[0077] In some embodiments of the present invention, Figure 2 and Figure 3 As shown, the two ends of the insulating skeleton 1 along the axial direction of the stator core 4 are respectively in contact with the two opposite side walls of the stator slot 41, and the insulating skeleton 1 can be limited in the axial direction of the stator core 4. At the same time, the radial inner end surface of the insulating skeleton 1 is in contact with the bottom wall of the stator slot 41, and the radial outer end of the stator core 4 can be provided with a step 43, which extends in a ring shape along the circumferential direction of the stator core 4. The radial outer end surface of the insulating skeleton 1 is in contact with the radial inner side wall of the step 43, and the insulating skeleton 1 can be limited in the radial direction of the stator core 4, thereby increasing the slot filling rate of the stator slot 41, and further enhancing the tightness and stability of the connection between the stator core 4 and the insulating skeleton 1.

[0078] The linear motor according to the embodiment of the present invention includes the primary component 100 mentioned above.

[0079] According to the linear motor of the embodiment of the utility model, by using the primary component 100 provided with the insulating skeleton 1, and by providing the skeleton body 11 having the wire slots 111 that can accommodate the stator winding 5 in the stator slots 41 of the stator core 4 and providing the baffle 112 extending to the outer peripheral wall of the stator core 4 on the skeleton body 11, the electrical contact between the stator winding 5 and the stator core 4 can be effectively isolated to prevent short circuit or damage caused by current leakage. The baffle 112 also increases the creepage distance, which can enhance the insulation performance, and can also protect the lead wire 51 from being scratched by the stator core 4, thereby enhancing the safety and reliability of the primary component 100, and then enhancing the safety and reliability of the linear motor, so that the product quality of the linear motor is guaranteed.

[0080] The electromagnetic suspension according to the embodiment of the utility model includes the above-mentioned linear motor.

[0081] According to the electromagnetic suspension of the embodiment of the utility model, by using a linear motor provided with a primary component 100 having the above-mentioned insulating skeleton 1, and by providing a skeleton body 11 having a wire slot 111 that can accommodate the stator winding 5 in the stator slot 41 of the stator core 4 and providing a baffle 112 extending to the outer peripheral wall of the stator core 4 on the skeleton body 11, the electrical contact between the stator winding 5 and the stator core 4 can be effectively isolated to prevent short circuit or damage caused by current leakage. The baffle 112 also increases the creepage distance, which can enhance the insulation performance, and can also protect the lead wire 51 from being scratched by the stator core 4, thereby enhancing the safety and reliability of the linear motor, and then enhancing the safety and reliability of the electromagnetic suspension, so that the product quality of the electromagnetic suspension is guaranteed.

[0082] A vehicle according to an embodiment of the utility model includes the above-mentioned electromagnetic suspension.

[0083] According to the vehicle of the embodiment of the utility model, by providing a primary component 100 having the above-mentioned insulating skeleton 1 in the linear motor of the electromagnetic suspension, and by providing a skeleton body 11 having a wire slot 111 that can accommodate the stator winding 5 in the stator slot 41 of the stator core 4 and providing a baffle 112 extending to the outer peripheral wall of the stator core 4 on the skeleton body 11, the electrical contact between the stator winding 5 and the stator core 4 can be effectively isolated to prevent short circuit or damage caused by current leakage. The baffle 112 also increases the creepage distance, can enhance the insulation performance, and can also protect the lead wire 51 from being scratched by the stator core 4, thereby enhancing the safety and reliability of the electromagnetic suspension, and then enhancing the safety and reliability of the vehicle, so that the product quality of the vehicle is guaranteed.

[0084] The linear motor, electromagnetic suspension and other structures and operations of the vehicle according to the embodiments of the present invention are well known to those skilled in the art and will not be described in detail here.

[0085] 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 utility model. 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 can be combined in any one or more embodiments or examples in a suitable manner.

[0086] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate 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 primary component, characterized in that include: A stator core (4) and a stator winding (5), wherein the stator core (4) has a plurality of stator slots (41) arranged along the axial direction, and the stator slots (41) extend in a ring shape along the circumferential direction of the stator core (4): An insulating skeleton (1), the insulating skeleton (1) comprising a skeleton body (11), the skeleton body (11) being arranged in the stator slot (41) and extending in a ring shape along the circumferential direction of the stator core (4), the skeleton body (11) having a wire slot (111) for accommodating the stator winding (5), the skeleton body (11) being provided with a baffle (112) extending to the outer peripheral wall of the stator core (4), the baffle (112) isolating the lead wire (51) of the stator winding (5) from the stator core (4).

2. The primary component according to claim 1, characterized in that The outer peripheral wall of the skeleton body (11) has a plurality of recessed portions (113) arranged at intervals along the circumferential direction of the stator core (4); the recessed portions (113) penetrate the skeleton body (11) in the axial direction of the skeleton body (11); at least one of the two sides of at least one of the recessed portions (113) along the axial direction of the stator core (4) is provided with a baffle (112); the baffle (112) is located radially outside the stator core (4).

3. The primary component according to claim 2, characterized in that The skeleton body (11) comprises: A first frame (2), the first frame (2) is annular, and a first wire groove (21) is provided on the first frame (2); A second skeleton (3), the second skeleton (3) is annular, and a second wire slot (31) is provided on the second skeleton (3); the first skeleton (2) and the second skeleton (3) are arranged and connected in the axial direction of the stator core (4); the first wire slot (21) and the second wire slot (31) are opposite and connected to each other to form the wire slot (111); and the recessed portion (113) passes through the first skeleton (2) and the second skeleton (3) in the axial direction of the skeleton body (11).

4. The primary component according to claim 3, characterized in that The baffle (112) comprises a first baffle (22) and a second baffle (32); the number of the recessed portions (113) is n; a wire passage opening (114) communicating with the wire groove (111) is provided on the bottom wall of at least one of the recessed portions (113); the first frame (2) is provided with the first baffle (22) extending in a direction away from the second frame (3) on a side of one of the wire passage openings (114) away from the second frame (3); and the second frame (3) is provided with the first baffle (22) on the side of the first wire passage opening (114) away from the second frame (3); The side of the recessed portion (113) facing away from the first frame (2) is provided with the second baffle (32) extending in a direction away from the first frame (2), wherein the bottom wall of at least one of the n-1 recessed portions (113) is provided with the wire passing opening (114), and the lead wire (51) of the stator winding (5) in the wire slot (111) is led out from the wire passing opening (114) having both the first baffle (22) and the second baffle (32).

5. The primary assembly according to claim 4, characterized in that A groove (33) is provided on a side of the second frame (3) facing away from the first frame (2); the groove (33) is arranged opposite to the recessed portion (113) on the second frame (3) where the second baffle (32) is not provided; the groove (33) is used to cooperate with the free end of the first baffle (22) on the first frame (2).

6. The primary assembly according to claim 3, characterized in that A first boss (23) is provided at the radial inner end of the first frame (2) on the side facing the second frame (3), and the first boss (23) extends in a ring shape along the circumferential direction of the first frame (2). A second boss (34) is provided at the radial inner end of the second skeleton (3) on the side facing the first skeleton (2), and the second boss (34) extends in a ring shape along the circumferential direction of the second skeleton (3). The first boss (23) and the second boss (34) are stacked in the radial direction of the stator core (4).

7. The primary assembly according to claim 6, characterized in that The second boss (34) is located radially outside the first boss (23), and the free end of the second boss (34) abuts against the first frame (2); Alternatively, the first boss (23) is located radially outside the second boss (34), and the free end of the first boss (23) abuts against the second frame (3).

8. The primary assembly according to claim 6, characterized in that A third boss (24) is provided at the radial outer end of the first frame (2) on the side facing the second frame (3), and the third boss (24) extends in a ring shape along the circumferential direction of the first frame (2). A fourth boss (35) is provided at the radial outer end of the second frame (3) on the side facing the first frame (2), and the fourth boss (35) extends in a ring shape along the circumferential direction of the second frame (3). The recessed portion (113) is formed on the third boss (24) and the fourth boss (35). The third boss (24) and the fourth boss (35) are stacked in a radial direction of the stator core (4).

9. The primary assembly according to claim 8, characterized in that The second boss (34) and the fourth boss (35) are located between the first boss (23) and the third boss (24), or the first boss (23) and the third boss (24) are located between the second boss (34) and the fourth boss (35), Wherein, the fourth boss (35) and the third boss (24) are snap-connected and / or the first boss (23) and the second boss (34) are snap-connected.

10. The primary assembly according to claim 2, characterized in that In the projection of a plane perpendicular to the axial direction of the stator core (4), the baffle (112) is a curved plate protruding toward the axial direction of the stator core (4).

11. The primary assembly according to claim 2, characterized in that The lead wire (51) of the stator winding (5) located radially outside the stator core (4) is located in the recessed portion (113) and is introduced into the wire slot (111) or led out from the wire slot (111) at the position of the recessed portion (113).

12. The primary assembly according to claim 1, characterized in that Two ends of the insulating frame (1) along the axial direction of the stator core (4) are respectively in contact with two opposite side walls of the stator slot (41); And / or, the radial inner end surface of the insulating frame (1) abuts against the bottom wall of the stator slot (41).

13. A linear motor, characterized in that: Comprising a primary assembly (100) according to claim 12.

14. An electromagnetic suspension, characterized in that: Comprising a linear motor according to claim 13.

15. A vehicle, characterized in that: Comprising the electromagnetic suspension according to claim 14.

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