Motor and vehicle

Abstract

The invention relates to the technical field of vehicle production and manufacturing, in particular to a motor and a vehicle. When the stator block is inserted, the plurality of main body parts are mutually spliced in the circumferential direction of the outer stator to form at least one annular stator, and after the first annular stator is spliced, the first annular stator is sequentially spliced to form a second annular stator; and the stator teeth in the adjacent stator blocks are overlapped in the axial direction of the outer stator, so that the windings are positioned on the same straight line until all the stator blocks splice at least one annular stator in the axial direction. The stator block includes a main body portion and stator teeth, and the stator teeth are inserted into the winding gap from the outside in the radial direction of the outer stator so that the winding is located between the stator teeth. The winding is fixed when the stator teeth are inserted, and thrust is applied to the stator from the outer side to the inner side, so that the deformation risk of the winding is reduced, and the damage to the winding is further reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle production and manufacturing, and in particular to a motor and a vehicle. Background Art

[0002] The current motor windings are mostly continuous wave windings, which is to arrange adjacent coils in sequence, and each coil is bent in an "S" shape. The motor windings are mostly flat wire windings. Compared with round wire windings, the cross-sectional shape of flat wire windings is closer to a rectangle, which can better fill the space of the stator slots, improve the compactness of the windings and the wire filling rate, and thus allow for greater current. However, since the windings are formed in one piece with flat wires, the original wire insertion process cannot be used, but the wire expansion process. The wire expansion process is to apply pressure to the windings from the inside to the outside in the radial direction, thereby pushing the windings to be embedded in the stator slots of the outer stator. However, during the embedding process of the windings, due to the flexible nature of the flat wires, their fixed shape is easily deformed when subjected to force and collides and rubs against the stator slots, increasing the chance of winding damage. Summary of the invention

[0003] The purpose of the present application is to provide a motor and a vehicle.

[0004] The present application provides a motor, comprising an inner stator; a winding, wherein the winding has a plurality of winding gaps; and an outer stator, wherein the outer stator comprises a plurality of stator blocks, wherein the stator blocks comprise a main body and stator teeth, wherein the stator teeth are arranged on the inner side of the main body in the radial direction of the outer stator, and the stator teeth are inserted into the winding gaps, wherein a plurality of the main bodies are spliced ​​together to form an annular stator in the circumferential direction of the outer stator, wherein the inner stator is arranged on a side of the stator teeth away from the annular stator in the radial direction of the outer stator, wherein the number of the annular stators is at least one, wherein at least one annular stator is spliced ​​together in the axial direction of the outer stator, and the stator teeth in adjacent stator blocks in the axial direction of the outer stator overlap.

[0005] In an exemplary embodiment of the present application, the stator blocks of the annular stators adjacent to each other in the axial direction of the outer stator are staggered, the number of the stator teeth is at least two, and at least one stator tooth in the stator blocks adjacent to each other in the axial direction of the outer stator overlaps.

[0006] In an exemplary embodiment of the present application, the stator teeth include first stator teeth and second stator teeth, and the first stator teeth of one of the adjacent stator blocks in the axial direction of the outer stator overlap with the second stator teeth of the other adjacent stator blocks.

[0007] In an exemplary embodiment of the present application, a first slot structure is provided between the first stator tooth and the second stator tooth, a first half-slot structure is formed on the side of the first stator tooth away from the slot structure, and a second half-slot structure is formed on the side of the second stator tooth away from the slot structure, the first half-slot structure and the second half-slot structure of adjacent stator blocks in the circumferential direction of the outer stator are connected to each other to form a second slot structure, the first slot structure and the second slot structure of adjacent stator blocks in the axial direction of the outer stator are connected, and the winding is arranged in the first slot structure and the second slot structure.

[0008] In an exemplary embodiment of the present application, in the circumferential direction of the outer stator, the winding includes an insertion wire segment and a cross-wire segment, the cross-wire segment is arranged on both sides of the insertion wire segment, the insertion wire segment is arranged in the first slot structure and the second slot structure, and the width of the first slot structure and the width of the second slot structure are greater than the width of the insertion wire segment.

[0009] In an exemplary embodiment of the present application, in the circumferential direction of the outer stator, a positioning groove is formed on one side of the main body, a positioning protrusion is formed on the other side of the main body, and the positioning protrusion of one of the adjacent stator blocks is inserted into the positioning groove of the other one.

[0010] In an exemplary embodiment of the present application, the positioning groove and the positioning protrusion are arranged on both sides of the main body in the circumferential direction of the outer stator.

[0011] In an exemplary embodiment of the present application, in the radial direction of the outer stator, the width of the main body portion and the width of the stator teeth gradually decrease from the outer side to the side.

[0012] In an exemplary embodiment of the present application, the inner stator is a stator column, the stator teeth have an inner arc surface, and the circumferential surface of the stator column abuts against the inner arc surface.

[0013] The present application also provides a vehicle, comprising the motor.

[0014] A motor and a vehicle of the present application scheme have the following beneficial effects: a winding gap is reserved during the arrangement of the winding, and after the winding is formed, the inner stator is arranged on the inner side of the winding in the radial direction of the winding, and then the stator block is inserted into the winding gap from the outside to the inside in the radial direction of the winding. When the stator block is inserted, multiple main bodies are spliced ​​together in the circumferential direction of the outer stator to form at least one annular stator. After the first annular stator is spliced, the second annular stator is spliced ​​on the first annular stator in sequence, and the stator teeth in the adjacent stator blocks are overlapped in the axial direction of the outer stator so that the winding is located on the same straight line, and until all stator blocks are spliced ​​together in the axial direction. At least one annular stator. The stator block includes a main body and stator teeth, and the stator teeth are inserted into the winding gap from the outside in the radial direction of the outer stator so that the winding is located between the stator teeth. Since the winding is fixed when the stator teeth are inserted, the deformation risk of the winding is reduced by applying a thrust from the outside to the inside of the stator, thereby reducing the damage to the winding.

[0015] Other features and advantages of the present application will become apparent from the following detailed description, or may be learned in part by the practice of the present application.

[0016] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings herein are incorporated into the specification and constitute a part of the specification, illustrate embodiments consistent with the present application, and together with the specification are used to explain the principles of the present application. Obviously, the drawings described below are only some embodiments of the present application, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 is a schematic diagram of a click structure in an embodiment of the present invention;

[0019] Figure 2 Schematic diagram of the structure of the matching of internal and external stators and windings in an embodiment of the present invention;

[0020] Figure 3 is a schematic structural diagram of a stator block in an embodiment of the present invention;

[0021] Figure 4 Schematic diagram of the structure of the internal and external stators in an embodiment of the present invention;

[0022] Figure 5 is a schematic diagram of the structure of the winding in an embodiment of the present invention;

[0023] Figure 6 Schematic diagram of the structure of the matching of the outer stator and the inner stator in an embodiment of the present invention;

[0024] Figure 7 yes Figure 6 A magnified schematic diagram of center A.

[0025] Description of reference numerals:

[0026] 10. Inner stator; 11. Fixing protrusion; 20. Winding; 21. Winding gap; 22. Insertion section; 23. Cross-line section; 24. First lead-out section; 25. Second lead-out section; 30. Outer stator; 31. Stator block; 311. Main body; 3111. Positioning groove; 3112. Positioning protrusion; 312. Stator tooth; 3121. First stator tooth; 3122. Second stator tooth; 313. First slot structure; 314. First half slot structure; 315. Second half slot structure; 316. Second slot structure; 317. Inner arc surface; 3171. Fixing slot; 32. Annular stator; 321. Hole. DETAILED DESCRIPTION

[0027] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this application will be more comprehensive and complete and fully convey the concept of example embodiments to those skilled in the art.

[0028] In addition, described feature, structure or characteristic can be combined in one or more embodiments in any suitable manner. In the following description, many specific details are provided to provide a full understanding of the embodiments of the present application. However, those skilled in the art will appreciate that the technical scheme of the present application can be put into practice without one or more of the specific details, or other methods, components, devices, steps, etc. can be adopted. In other cases, known methods, devices, realizations or operations are not shown or described in detail to avoid blurring the various aspects of the application.

[0029] The present application is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the technical features involved in the various embodiments of the present application described below can be combined with each other as long as they do not conflict with each other. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be understood as limiting the present application.

[0030] It should be noted that the "multiple" mentioned in this article refers to two or more. "And / or" describes the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the associated objects before and after are in an "or" relationship.

[0031] The motor consists of a stator and a rotor. The stator is used to generate a rotating magnetic field. The frame is used to fix the stator core and play a role in protection and heat dissipation. The rotor is the rotating part of the motor, including the rotor core and the rotor winding. The rotor winding generates induced electromotive force and current by cutting the stator rotating magnetic field, forming an electromagnetic torque, thereby rotating the motor. The rotor can be constructed in a squirrel cage or wound type. The former is usually used for small asynchronous motors, and the latter is used for equipment that requires smooth speed regulation. In addition, the motor also includes other components such as end covers and bearings. The end covers are used to support the rotor and the frame, and the bearings connect the rotating and stationary parts of the motor to ensure the smooth operation of the motor.

[0032] The current motor windings are mostly continuous wave windings, which is to arrange adjacent coils in sequence, and each coil is bent in an "S" shape. The motor windings are mostly flat wire windings. Compared with round wire windings, the cross-sectional shape of flat wire windings is closer to a rectangle, which can better fill the space of the stator slots, improve the compactness of the windings and the wire filling rate, and thus allow for greater current. However, since the windings are formed in one piece with flat wires, the original wire insertion process cannot be used, but the wire expansion process. The wire expansion process is to apply pressure to the windings from the inside to the outside in the radial direction, thereby pushing the windings to be embedded in the stator slots of the stator. However, during the embedding process of the windings, due to the flexible nature of the flat wires, their fixed shape is easily deformed when subjected to force and collides and rubs against the stator slots, increasing the chance of winding damage.

[0033] In order to solve the above technical problems, the present application provides a motor, referring to Figure 1 and Figure 2 As shown, it includes an inner stator 10, a winding 20 and an outer stator 30, the winding 20 has a plurality of winding gaps 21; the outer stator 30 includes a plurality of stator blocks 31, the stator block 31 includes a main body 311 and stator teeth 312, the stator teeth 312 are arranged on the inner side of the main body 311 in the radial direction of the outer stator 30, and the stator teeth 312 are inserted into the winding gaps 21, and a plurality of main bodies 311 are spliced ​​together to form an annular stator 32 in the circumferential direction of the outer stator 30, the inner stator 10 is arranged on the side of the stator teeth 312 away from the annular stator 32 in the radial direction of the outer stator 30, the number of the annular stator 32 is at least one, at least one annular stator 32 is spliced ​​together in the axial direction of the outer stator 30, and the stator teeth 312 in adjacent stator blocks 31 overlap in the axial direction of the outer stator 30.

[0034] In some embodiments, a winding gap 21 is reserved during the arrangement of the winding 20. After the winding 20 is formed, the inner stator 10 is arranged on the inner side of the winding 20 in the radial direction of the winding 20, and then the stator block 31 is inserted into the winding gap 21 from the outside to the inside in the radial direction of the winding 20. When the stator block 31 is inserted, multiple main body parts 311 are spliced ​​together in the circumferential direction of the outer stator 30 to form at least one annular stator 32. After the first annular stator 32 is spliced, the second annular stator 32 is spliced ​​on the first annular stator 32 in sequence, and the stator teeth 312 in adjacent stator blocks 31 are overlapped in the axial direction of the outer stator 30 so that the winding 20 is located on the same straight line, and until all stator blocks 31 are spliced ​​together in the axial direction with at least one annular stator 32. The stator block 31 includes a main body 311 and stator teeth 312. The stator teeth 312 are inserted from the outside into the winding gap 21 in the radial direction of the outer stator 30 so that the winding 20 is located between the stator teeth 312. Since the winding 20 is fixed when the stator teeth 312 are inserted, the risk of deformation of the winding 20 is reduced by applying a thrust force from the outside to the inside of the stator, thereby reducing damage to the winding 20.

[0035] In some embodiments, reference Figure 2 As shown in the figure, the radial direction refers to the direction passing through the axis in the radial plane. The axial direction is the direction of the central axis of the cylinder, that is, the direction common to the central axis. The circumferential direction refers to the "circumferential direction", that is, the direction around the axis of the cylinder. The circumferential direction, the axial direction, and the radial direction together constitute the three orthogonal directions of the cylindrical coordinates.

[0036] In some embodiments, after the stator block 31 is spliced ​​into the annular stator 32, it can be fixed by glue and then placed inside the stator shell. Since the heat generated during the operation of the motor causes the stator block 31 to expand thermally, a tight fit is formed between the stator blocks 31 and between the stator blocks 31 and the shell.

[0037] In some embodiments, reference Figure 2 and Figure 3 As shown, in the radial direction of the outer stator 30, the width of the main body 311 and the width of the stator teeth 312 gradually decrease from the outside to the side, so that an annular stator 32 can be formed after splicing. The annular stator 32 is a general term for the collection of stator blocks 31 in the circumferential direction. The stator blocks 31 are connected to each other in the circumferential direction to form a closed ring, and a hole 321 for accommodating the inner stator 10 is formed on the inner side along the axial direction of the outer stator 30.

[0038] In some embodiments, the number of annular stators 32 is set according to actual needs. The annular stator 32 determines the height of the outer stator 30 in the axial direction, which is closely related to the volume and performance requirements of the motor. The more annular stators 32 there are, the greater the motor power will be, in combination with parameters such as the number of slots in the winding 20. The motor can be applied to cooling systems, drive systems, etc. according to its power.

[0039] In some embodiments, reference Figure 2 and Figure 3 As shown, the stator blocks 31 of adjacent annular stators 32 in the axial direction of the outer stator 30 are staggered, the number of stator teeth 312 is at least two, and at least one stator tooth 312 in adjacent stator blocks 31 in the axial direction of the outer stator 30 overlaps. For example, the number of annular stators 32 in the axial direction of the outer stator 30 is 5, the number of stator teeth 312 is two, the staggered angle of each annular stator 32 is the same, the edge of the stator block 31 in the first annular stator 32 is located on the center line of the stator block 31 in the second annular stator 32, and overlaps in sequence to the fifth, so that one stator tooth 312 in adjacent stator blocks 31 in the axial direction overlaps.

[0040] Further, see Figure 2 and Figure 3 As shown, the stator teeth 312 include a first stator tooth 3121 and a second stator tooth 3122. In the axial direction of the outer stator 30, the first stator tooth 3121 of one of the adjacent stator blocks 31 overlaps with the second stator tooth 3122 of the other. Figure 4 As shown, a first slot structure 313 is provided between the first stator tooth 3121 and the second stator tooth 3122, a first half slot structure 314 is formed on the side of the first stator tooth 3121 away from the first slot structure 313, a second half slot structure 315 is formed on the side of the second stator tooth 3122 away from the first slot structure 313, the first half slot structures 314 and the second half slot structures 315 of adjacent stator blocks 31 in the circumferential direction of the outer stator 30 are connected to each other to form a second slot structure 316, the first slot structures 313 and the second slot structures 316 of adjacent stator blocks 31 in the axial direction of the outer stator 30 are connected, and the winding 20 is arranged in the first slot structure 313 and the second slot structure 316. Such a design can stagger the first stator tooth 3121 and the second stator tooth 3122, thereby connecting the first slot structure 313 and the second slot structure 316 in adjacent annular stators 32. Since the joint surfaces of the stator blocks 31 in the annular stators 32 in the circumferential direction are discontinuous between adjacent annular stators 32 in the axial direction, the risk of movement of the stator blocks 31 in the axial direction is reduced, thereby improving the stability between the stator blocks 31.

[0041] In some embodiments, the stator blocks 31 of adjacent annular stators 32 in the axial direction of the outer stator 30 are located on the same plane, the number of stator teeth 312 is at least two, and the stator teeth 312 in adjacent stator blocks 31 in the axial direction of the outer stator 30 overlap. The number of annular stators 32 in the axial direction of the outer stator 30 is five, the number of stator teeth 312 is two, each annular stator 32 is not staggered, the edge of the stator block 31 in the first annular stator 32 and the edge of the stator block 31 in the second annular stator 32 are on the same plane, and overlap in sequence to the fifth, so that the stator teeth 312 in adjacent stator blocks 31 in the axial direction overlap. Compared with stator blocks 31 being staggered, such a design can reduce the difficulty of assembly.

[0042] In some embodiments, reference Figure 4 and Figure 5 As shown, in the circumferential direction of the outer stator 30, the winding 20 includes an inserting wire segment 22 and a crossing wire segment 23, the crossing wire segment 23 is arranged on both sides of the inserting wire segment 22, the inserting wire segment 22 is arranged in the first slot structure 313 and the second slot structure 316, and the width of the first slot structure 313 and the width of the second slot structure 316 are greater than the width of the crossing wire segment 23. The winding 20 includes a plurality of continuously wave-wound flat wires, the flat wires are stacked in multiple layers in the radial direction, each flat wire includes a plurality of inserting wire segments 22 and a plurality of crossing wire segments 23, the inserting wire segment 22 is located in the outer stator 30, and each inserting wire segment 22 is arranged between adjacent stator teeth 312; the crossing wire segment 23 is exposed on the end surface of the outer stator 30; the pitch of each crossing wire segment 23 is equal to the number of winding slots divided by the number of pole pairs of the stator winding 20. Each flat wire also includes at least two lead-out sections, and a plurality of insertion sections 22 and a plurality of cross-line sections 23 are distributed between the at least two lead-out sections, and are used to lead out the insertion sections 22 and the cross-line sections 23 for welding with external workpieces, so only welding points are required in the lead-out sections, and no welding points are required between the insertion sections 22 and the cross-line sections 23. When inserted into the stator block 31, since the width of the first slot structure 313 and the width of the second slot structure 316 are greater than the width of the cross-line section 23, the tooth wall of the stator tooth 312 can be further prevented from damaging the winding 20.

[0043] In some embodiments, reference Figure 4 and Figure 5As shown, winding slots are formed between the stator teeth 312, namely, the first slot structure 313 and the second slot structure 316, and the winding 20 includes a plurality of inserted wire segments 22 arranged at intervals, and the plurality of inserted wire segments 22 arranged at intervals will be accommodated in the same winding slot. Along the radial direction of the outer stator 30, a plurality of inserted wire segments 22 in the same winding slot are stacked, a layer close to the outer peripheral surface of the outer stator 30 is the first layer, and a layer close to the axis of the outer stator 30 is the nth layer, where n is an even number greater than or equal to 2. Exemplarily, the motor is a 6-pole 54-slot motor, and 6 layers of inserted wire segments 22 are stacked in each winding slot. Along the radial direction of the outer stator 30, from the outer peripheral surface of the outer stator 30 to the axis of the outer stator 30, the layers where the 6 inserted wire segments 22 are located are the first layer, the second layer, the third layer, the fourth layer, the fifth layer, and the sixth layer, respectively. With reference to the structure of the winding slot, the first layer is the innermost layer close to the bottom of the slot, and the sixth layer is the outermost layer close to the slot opening.

[0044] In some embodiments, reference Figure 4 and Figure 5 As shown, the insertion wire segment 22 is in a straight line shape, and its length direction is parallel to the axial direction of the stator. When the stator block 31 is inserted into the flat wire, each insertion wire segment 22 is located in a winding slot of the outer stator 30 (i.e. Figure 2 The structure shown). Each winding slot of the stator core can accommodate multiple plug-in wire segments 22. In the same winding slot, multiple plug-in wire segments 22 are stacked in sequence along the radial direction of the stator, and the stacking direction is also the thickness direction of the plug-in wire segment 22. Each cross-line segment 23 is connected by the plug-in wire segment 22, and the cross-line segment 23 and the plug-in wire segment 22 are an integral structure, and the cross-line segment 23 exposes two end faces in the axial direction of the outer stator 30. The two ends of the flat wire are the first lead-out segment 24 and the second lead-out segment 25, respectively, and the first lead-out segment 24 and the second lead-out segment 25 are used to connect the above-mentioned confluence structure. Among them, the first lead-out segment 24 can be regarded as the head of the flat wire, and the second lead-out segment 25 can be regarded as the tail of the flat wire. The plug-in wire segment 22 and the cross-line segment 23 are distributed between the first lead-out segment 24 and the second lead-out segment 25, and the first lead-out segment 24 and the second lead-out segment 25 are located on the same end face of the outer stator. It should be understood that only the insertion line segment 22, the cross-line segment 23, the first lead-out segment 24 and the second lead-out segment 25 of the flat wire are shown, but it is not limited to direct connection between any two connected line segments, that is, there can be other connection structures between any two connected line segments. The insertion line segment 22, the cross-line segment 23, the first lead-out segment 24 and the second lead-out segment 25 are just the concepts and definitions proposed for more conveniently describing the winding shape of the flat wire relative to the outer stator 30.

[0045] In some embodiments, an insulating layer is provided outside the flat wire to insulate adjacent flat wires. The width of the flat wire is set according to actual needs, and the winding gap 21 between the corresponding stator teeth 312 also needs to be set according to the width of the flat wire.

[0046] In some embodiments, the motor can be applied to 6-pole 54-slot three-phase motors, 8-pole 48-slot three-phase motors, and 8-pole 72-slot three-phase motors commonly used in the electric vehicle industry. The winding 20 can be applied to winding motors with different pole slot combinations and winding layers through different winding methods. The winding 20 can include one slot four wires, one slot six wires, and one slot eight wires of flat wire layers.

[0047] In some embodiments, reference Figure 6 As shown, in the circumferential direction of the outer stator 30, a positioning groove 3111 is formed on one side of the main body 311, and a positioning protrusion 3112 is formed on the other side of the main body 311. The positioning protrusion 3112 of one of the adjacent stator blocks 31 is inserted into the positioning groove 3111 of the other. After the stator block 31 is inserted into the winding gap 21, the positioning protrusion 3112 and the positioning groove 3111 play a preliminary positioning role. After assembling one stator block 31, the positioning protrusion 3112 of the previous stator block 31 of another stator block 31 cooperates with the positioning groove 3111 of the next stator block 31, and so on.

[0048] In some embodiments, reference Figure 6 As shown, the positioning groove 3111 and the positioning protrusion 3112 are provided on both sides of the main body 311 in the circumferential direction of the outer stator 30. Since the stator teeth 312 are provided with the first half slot structure 314 and the second half slot structure 315 on both sides, it is difficult to play a positioning role by providing the positioning groove 3111 and the positioning protrusion 3112 on the first half slot structure 314 and the second half slot structure 315, so the positioning groove 3111 and the positioning protrusion 3112 are provided on the main body 311, and the main body 311 has a greater weight, so it has better stability after being positioned.

[0049] In some embodiments, reference Figure 7 As shown, the inner stator 10 is a stator column, and the stator tooth 312 has an inner arc surface 317, and the circumference of the stator column abuts against the inner arc surface 317. The inner arc surface 317 of the stator tooth 312 is on the side away from the main body 311, and the inner arc surface 317 is provided with a fixing groove 3171, and the width of the fixing groove 3171 gradually decreases from the outside to the inside in the radial direction. The inner stator 10 includes a fixing protrusion 11, and the width of the fixing protrusion 11 gradually decreases from the outside to the inside in the radial direction. The fixing protrusion 11 is clamped in the fixing groove 3171. After the assembly is completed, the inner arc surface 317 abuts against the circumference of the stator column, which can further fix the winding and maintain the stability of the winding 20.

[0050] In the present application, the stator teeth 312 are inserted into the winding gap 21 of the outer stator 30 from the outside in the radial direction so that the winding 20 is located between the stator teeth 312. Compared with applying pressure to the winding from the inside to the outside in the radial direction to push the winding 20 to be embedded in the stator slot of the outer stator 30, since the winding 20 is fixed when the stator teeth 312 are inserted, the thrust is applied to the stator from the outside to the inside, thereby reducing the risk of deformation of the winding 20, thereby reducing damage to the winding 20.

[0051] The present application also provides a vehicle, comprising the above-mentioned motor.

[0052] In this application, unless otherwise clearly specified and limited, the terms "disposed (provided with)", "connected" and the like 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0053] In the description of this specification, the description of reference terms such as "some embodiments" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment are included in at least one embodiment of the present application. 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. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0054] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application. Therefore, any changes or modifications made in accordance with the claims and description of the present application should fall within the scope of the patent of this application.

Claims

1. A motor, characterized in that: include: inner stator; A winding having a plurality of winding gaps; An outer stator, the outer stator includes a plurality of stator blocks, the stator blocks include a main body and stator teeth, the stator teeth are arranged on the inner side of the main body in the radial direction of the outer stator, the stator teeth are inserted into the winding gap, a plurality of the main bodies are spliced ​​together in the circumferential direction of the outer stator to form an annular stator, the inner stator is arranged on the side of the stator teeth away from the annular stator in the radial direction of the outer stator, the number of the annular stators is at least one, at least one annular stator is spliced ​​together in the axial direction of the outer stator, and the stator teeth in adjacent stator blocks overlap in the axial direction of the outer stator.

2. The motor according to claim 1, characterized in that The stator blocks of the annular stators adjacent to each other in the axial direction of the outer stator are staggered, the number of the stator teeth is at least two, and at least one stator tooth of the stator blocks adjacent to each other in the axial direction of the outer stator overlaps.

3. The motor according to claim 2, characterized in that The stator teeth include first stator teeth and second stator teeth, and the first stator teeth of one of the adjacent stator blocks in the axial direction of the outer stator overlap with the second stator teeth of the other adjacent stator blocks.

4. The motor according to claim 3, characterized in that A first slot structure is provided between the first stator tooth and the second stator tooth, a first half slot structure is formed on the side of the first stator tooth away from the first slot structure, a second half slot structure is formed on the side of the second stator tooth away from the first slot structure, the first half slot structure and the second half slot structure of adjacent stator blocks in the circumferential direction of the outer stator are connected to each other to form a second slot structure, the first slot structure and the second slot structure of adjacent stator blocks in the axial direction of the outer stator are connected, and the winding is arranged in the first slot structure and the second slot structure.

5. The motor according to claim 4, characterized in that In the circumferential direction of the outer stator, the winding includes an insertion wire segment and a cross-wire segment, the cross-wire segment is arranged on both sides of the insertion wire segment, the insertion wire segment is arranged in the first slot structure and the second slot structure, and the width of the first slot structure and the width of the second slot structure are greater than the width of the insertion wire segment.

6. The motor according to any one of claims 1 to 5, characterized in that: In the circumferential direction of the outer stator, a positioning groove is formed on one side of the main body, a positioning protrusion is formed on the other side of the main body, and the positioning protrusion of one of the adjacent stator blocks is inserted into the positioning groove of the other stator block.

7. The motor according to claim 6, characterized in that The positioning groove and the positioning protrusion are arranged on both sides of the main body in the circumferential direction of the outer stator.

8. The motor according to claim 1, characterized in that In the radial direction of the outer stator, the width of the main body portion and the width of the stator teeth gradually decrease from the outer side to the side.

9. The motor according to claim 1, characterized in that The inner stator is a stator column, the stator teeth have an inner arc surface, and the circumferential surface of the stator column abuts against the inner arc surface.

10. A vehicle, characterized in that: A motor comprising any one of claims 1 to 9.

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