Motor partitioning structure

Abstract

The invention discloses a motor block structure, and aims to solve the problems that in a conventional block motor, a stator or a rotor is divided into a plurality of blocks and then assembled into the whole stator or rotor, the structure consistency cannot be guaranteed, and the motor performance is affected. In the motor block structure, a second block is connected to the inner side of a first block, the first block is provided with a plurality of first tooth parts, the second block is provided with a plurality of second tooth parts, a winding assembly comprises a plurality of first windings and a plurality of second windings, the number of the first windings is smaller than or equal to the number of the first tooth parts, and the number of the second windings is smaller than or equal to the number of the second tooth parts. The number of the second windings is smaller than or equal to that of the second tooth parts, the first windings are wound on the corresponding first tooth parts, and the second windings are wound on the corresponding second tooth parts. The stator or the rotor of the motor is divided into the first sub-block and the second sub-block, and the second sub-block is connected to the inner side of the first sub-block, so that compared with a conventional manner of circumferentially splicing a plurality of sub-blocks, the splicing consistency of the motor is improved, the performance of the motor is further improved, and meanwhile, the cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of motors, and in particular to a motor block structure. Background Art

[0002] Winding is an indispensable part of the motor. Winding is usually wound on the stator teeth or rotor teeth. For concentrated winding, the winding form is simple and usually uses machine winding, which greatly reduces the labor cost. However, some small-sized motors still use manual winding. However, for the whole stator or rotor, the batch-to-batch consistency of manual winding is not high due to the size factors such as slot width, stator or rotor slot type, etc., and the slot fill rate usually cannot reach the limit, and manual winding is time-consuming and labor-intensive. The emergence of block stators or rotors solves the limitations of machine winding and the complexity of manual winding.

[0003] Conventional block motors are divided into several blocks according to the number of stator or rotor teeth. Taking the stator as an example, the stator yoke is usually disconnected for block division. The stator connection after block division is provided with a dovetail groove structure for subsequent assembly. Generally, there is a dovetail groove structure in the yoke to facilitate assembly into the entire stator after winding.

[0004] The existing conventional block motors can achieve machine wire embedding during winding, and improve the slot fill rate to a certain extent. However, since the number of blocks is related to the number of teeth (generally the same as the number of teeth), the number of blocks is large. Due to the inevitable influence of dimensional tolerances in actual production, the consistency between batches of the stator as a whole cannot be guaranteed after overall splicing. Such as roundness consistency or cylindricity consistency, this will affect the air gap size of the motor and thus affect the motor performance, especially for small motors with small air gap sizes, the impact is greater. And it is very likely that the splicing will be unqualified or deformed after long-term storage. Generally, in this case, the choice is to disassemble and re-splice, which not only wastes manpower and material resources, but also may cause insulation damage after multiple splicing, and ultimately lead to the scrapping of the entire stator. In addition, tooling and fixtures are required during the splicing process, which increases the manufacturing cost. Summary of the invention

[0005] The purpose of the present invention is to provide a motor block structure, aiming to solve the problems that in conventional block motors, the stator or rotor is divided into several blocks and then assembled into a whole stator or rotor, which cannot ensure structural consistency and affects motor performance.

[0006] To solve the above problems, the present invention provides a motor block structure, the motor block structure includes: a first block, a second block and a winding assembly, the second block is connected to the inner side of the first block, the first block is provided with a plurality of first teeth, the second block is provided with a plurality of second teeth, the winding assembly includes a plurality of first windings and a plurality of second windings, the number of the first windings is less than or equal to the number of the first teeth, the number of the second windings is less than or equal to the number of the second teeth, the first winding is wound on the corresponding first teeth, and the second winding is wound on the corresponding second teeth.

[0007] Through such a setting, the stator or rotor of the motor is divided into a first block and a second block, and the second block is connected to the inner side of the first block. Compared with the conventional circumferential assembly of multiple blocks, the integrity of the motor is better. During the winding process of the winding assembly, the first winding is wound on the first tooth portion of the first block, and the second winding is wound on the second tooth portion of the second block. After the winding is completed, the first block and the second block are assembled into an integrated rotor or stator. The full slot rate of the winding is improved, the assembly process is simplified, installation and later maintenance are facilitated, efficiency is improved, and costs are saved.

[0008] Preferably, the first block and the second block form an annular space, a plurality of first teeth are arranged in an annular manner on the first block and are located in the annular space, a plurality of second teeth are arranged in an annular manner on the second block and are located in the annular space, and the first teeth and the second teeth are arranged alternately in the annular space.

[0009] By arranging the first tooth portion and the second tooth portion in the annular space in this way, the compactness of the structure can be improved, the volume of the motor can be greatly saved, and the motor can be applied to a small motor. The first tooth portion and the second tooth portion are arranged alternately, which is conducive to increasing the winding operation space of the first winding and the second winding, facilitating the winding work and the subsequent assembly operation of the first block and the second block.

[0010] Preferably, when viewed from the circumference of the annular space, all the first tooth portions and all the second tooth portions are arranged in a staggered manner, one first tooth portion and one second tooth portion are arranged in sequence; or,

[0011] All first teeth are divided into multiple groups according to the number of equal groups, the number of first teeth in each group is greater than or equal to two, and when viewed from the circumference of the annular space, all first teeth and all second teeth are arranged in a staggered manner such that one group of first teeth and one second tooth are arranged in sequence; or,

[0012] All the second teeth are divided into a plurality of groups according to the number of the second teeth, the number of the second teeth in each group is greater than or equal to two, and when viewed from the circumference of the annular space, the arrangement of all the first teeth and all the second teeth is that one first tooth and one group of second teeth are alternately arranged in sequence; or,

[0013] All first teeth are divided into multiple groups according to their equal number, and the number of first teeth in each group is greater than or equal to two. All second teeth are divided into multiple groups according to their equal number, and the number of second teeth in each group is greater than or equal to two. When observed from the circumferential direction of the annular space, all first teeth and all second teeth are arranged in a manner that a group of first teeth and a group of second teeth are arranged alternately in sequence.

[0014] Through such a setting, the arrangement of the first tooth portion and the second tooth portion can be determined according to the processing requirements of the motor and the winding space requirements of the winding assembly. Different arrangement methods correspond to different winding sizes of the first winding and the second winding, which is beneficial to ensure the slot fill rate and reduce the air gap size in the motor under different circumstances.

[0015] Preferably, when all the first tooth portions and all the second tooth portions are arranged in a staggered manner, a plurality of first tooth portions are evenly arranged along the circumference of the first block, and a plurality of second tooth portions are evenly arranged along the circumference of the second block;

[0016] In a case where the arrangement of all the first teeth and all the second teeth is that a group of first teeth and a second tooth are arranged alternately in sequence, the plurality of groups of first teeth are evenly arranged along the circumference of the first block, and the plurality of second teeth are evenly arranged along the circumference of the second block;

[0017] In the case where the arrangement of all the first teeth and all the second teeth is that one first tooth and one group of second teeth are arranged alternately in sequence, the plurality of first teeth are evenly arranged along the circumference of the first block, and the plurality of groups of second teeth are evenly arranged along the circumference of the second block;

[0018] When all the first teeth and all the second teeth are arranged in a staggered manner, a group of first teeth and a group of second teeth are arranged in sequence, multiple groups of first teeth are evenly arranged along the circumference of the first block, and multiple groups of second teeth are evenly arranged along the circumference of the second block.

[0019] Through such an arrangement, the first teeth or the first teeth group in different arrangements are evenly arranged along the circumference of the first block, and the second teeth or the second teeth group are evenly arranged along the circumference of the second block, so that the geometric centers and rotational centers of the first block and the second block coincide after assembly, thereby improving the stability of the motor operation; through the uniform circumferential arrangement, the first block and the second block are more flexible during the assembly process, that is, the second block can be rotated to multiple angles along the center of the annular space to complete the splicing with the first block.

[0020] Preferably, a first limiting portion is provided at the end of the first tooth portion, and a second limiting portion is provided on the second block, and the first limiting portion is connected to the second limiting portion in a one-to-one correspondence;

[0021] A third limiting portion is provided on the first block, a fourth limiting portion is provided at the end of the second tooth portion, and the third limiting portion is connected to the fourth limiting portion in a one-to-one correspondence.

[0022] Through such an arrangement, the end of the first tooth portion is connected to the second block, so that the first tooth portion can better support the first winding during the rotation of the motor. The end of the second tooth portion is connected to the first block, so that the second tooth portion can better support the second winding during the rotation of the motor, thereby improving the overall stability of the first block and the second block after assembly.

[0023] Preferably, the first block and the second block form an annular space, a plurality of first teeth are arranged in an annular manner on the first block and are located in the annular space, a plurality of second teeth are arranged in an annular manner on the second block and are located in the annular space, a plurality of first teeth are located on a first ring line, a plurality of second teeth are located on a second ring line, the first ring line is located outside the second ring line, and in the radial direction of the motor, the ends of the first teeth are connected one-to-one with the ends of the second teeth.

[0024] Through such an arrangement, the first tooth portion is arranged on the first loop line, and the second tooth portion is arranged on the second loop line. At this time, the first winding is wound on the first loop line, and the second winding is wound on the second loop line. During the assembly process of the first block and the second block, the first winding and the second winding are not staggered on the same loop line, making the assembly operation of the first block and the second block simpler.

[0025] Preferably, the first windings are wound on the first teeth in a one-to-one correspondence, and the second windings are wound on the second teeth in a one-to-one correspondence, and in the radial direction of the motor, the first windings and the second windings are arranged in alignment one by one.

[0026] Through such an arrangement, a first winding is wound on each first tooth portion, and a second winding is wound on each second tooth portion. The first tooth portions and the second tooth portions are connected one-to-one, so that the first winding and the second winding are arranged correspondingly in the radial direction of the motor, thereby improving the full slot rate of the motor.

[0027] Preferably, the first winding is wound on the first tooth portion in an intermittent arrangement, and the second winding is wound on the second tooth portion in an intermittent arrangement. In the radial direction of the motor, the first winding and the second winding are staggered.

[0028] By such an arrangement, the winding space of the first winding on the first tooth portion and the winding space of the second winding on the second tooth portion are large, which is convenient for winding operation. At the same time, when other components such as Hall elements need to be arranged in the motor, the first winding and the second winding are arranged in an intermittent manner to form a winding assembly that is not wound on part of the first tooth portion and the second tooth portion, and at this time, other components such as Hall elements can be arranged on the unwound first tooth portion or the second tooth portion.

[0029] Preferably, the plurality of first teeth are evenly arranged along the circumference of the first block, and the plurality of second teeth are evenly arranged along the circumference of the second block.

[0030] Through such an arrangement, the first tooth portions and the second tooth portions are evenly arranged, so that the distance between two adjacent first tooth portions is consistent, the winding space of the first winding is the same, and then the size of the first winding is the same, the distance between two adjacent second tooth portions is consistent, the winding space of the second winding is the same, and then the size of the second winding is the same, which is convenient for winding the first winding and the second winding; the first tooth portions and the second tooth portions are evenly arranged and connected one by one, so that the first block and the second block are more flexible during the assembly process, that is, the second block can be rotated to multiple angles along the center of the annular space to complete the splicing with the first block.

[0031] Preferably, a first limiting portion is provided at the end of the first tooth portion, and a fourth limiting portion is provided at the end of the second tooth portion, and the first limiting portion is connected to the fourth limiting portion in a one-to-one correspondence.

[0032] Through such an arrangement, a first limiting portion is arranged at the end of the first tooth portion, and a fourth limiting portion is arranged at the end of the second tooth portion, so as to ensure the connection effect between the first block and the second block; the first limiting portion and the second limiting portion are arranged correspondingly, so that the second block can be rotated to multiple directions inside the first block and connected with the first block, which is more convenient for the assembly operation of the first block and the second block when multiple first tooth portions and second tooth portions are arranged. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 is a schematic structural diagram of a motor block structure after the first block and the second block are assembled according to the first embodiment of the present invention;

[0034] Figure 2 is a schematic diagram of a first block structure of a motor block structure according to a first embodiment of the present invention;

[0035] Figure 3 is a schematic diagram of a second block structure of the motor block structure according to the first embodiment of the present invention;

[0036] Figure 4 is a schematic diagram of the overall structure of the motor block structure according to the first embodiment of the present invention;

[0037] Figure 5 is an exploded schematic diagram of a motor block structure according to a first embodiment of the present invention;

[0038] Figure 6 is a schematic structural diagram of a motor block structure after the first block and the second block are assembled according to a second embodiment of the present invention;

[0039] Figure 7 is a schematic diagram of a first block structure of a motor block structure according to a second embodiment of the present invention;

[0040] Figure 8 is a schematic diagram of a second block structure of a motor block structure according to a second embodiment of the present invention;

[0041] Fig. 9 is a schematic structural diagram of a motor block structure after the first block and the second block are assembled according to the first embodiment of the present invention;

[0042] Fig.10 is a schematic diagram of a first block structure of a motor block structure according to a third embodiment of the present invention;

[0043] Fig.11 is a schematic diagram of a second block structure of a motor block structure according to a third embodiment of the present invention;

[0044] Fig.12 is a schematic diagram of the overall structure of a motor block structure according to a third embodiment of the present invention;

[0045] Fig.13 is an exploded schematic diagram of a motor block structure according to a third embodiment of the present invention;

[0046] Fig.14 is a schematic diagram of the overall structure of a motor block structure according to a fourth embodiment of the present invention;

[0047] Fig.15 Schematic diagram of an exploded view of a motor block structure according to a fourth embodiment of the present invention.

[0048] Reference numerals:

[0049] 1. first block; 11. first tooth portion; 12. first limiting portion; 13. third limiting portion;

[0050] 2. second block; 21. second tooth portion; 22. second limiting portion; 23. fourth limiting portion;

[0051] 3. Winding assembly; 31. First winding; 32. Second winding. DETAILED DESCRIPTION

[0052] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present invention.

[0053] The accompanying drawings show schematic diagrams of layer structures according to embodiments of the present invention. These figures are not drawn to scale, and some details are magnified and some details may be omitted for the purpose of clarity. The shapes of various regions and layers shown in the figures and the relative sizes and positional relationships therebetween are only exemplary, and may deviate in practice due to manufacturing tolerances or technical limitations, and those skilled in the art may additionally design regions / layers with different shapes, sizes, and relative positions according to actual needs.

[0054] Combination Figures 1 to 5 The present invention provides a motor block structure, which includes: a first block 1, a second block 2 and a winding assembly 3, the second block 2 is connected to the inner side of the first block 1, the first block 1 is provided with a plurality of first tooth portions 11, the second block 2 is provided with a plurality of second tooth portions 21, the winding assembly 3 includes a plurality of first windings 31 and a plurality of second windings 32, the number of the first windings 31 is less than or equal to the number of the first tooth portions 11, the number of the second windings 32 is less than or equal to the number of the second tooth portions 21, the first windings 31 are wound on the corresponding first tooth portions 11, and the second windings 32 are wound on the corresponding second tooth portions 21. It should be noted that the specific shapes of the cross sections of the first block 1 and the second block 2 are not limited here, and can be polygonal or circular, etc. The second block 2 is arranged on the inner side of the first block 1, and the first winding 31 is wound on the first tooth portion 11, and the second winding 32 is wound on the second tooth portion 21. The first block 1 wound with the first winding 31 and the second block 2 wound with the second winding 32 are assembled into a whole. Compared with the conventional method of dividing the motor into several blocks, the present invention is divided into the first block 1 and the second block 2, which reduces the number of blocks and simplifies the assembly process. At the same time, the first block 1 and the second block 2 split inside and outside can also realize the winding installation of the winding assembly 3, thereby achieving the effect of improving the full slot rate. The reduction in the number of blocks also promotes the improvement of the integrity of the motor, reduces the difficulty of assembly and subsequent maintenance of the block motor, improves the assembly accuracy, reduces the motor defect rate, and saves costs. In addition, through such an arrangement of the winding assembly 3, the winding consistency is better, and the performance of the motor is improved.

[0055] Embodiment 1

[0056] In a motor block structure, a first block 1 and a second block 2 form an annular space, a plurality of first teeth 11 are arranged in an annular manner on the first block 1 and are located in the annular space, and a plurality of second teeth 21 are arranged in an annular manner on the second block 2 and are located in the annular space. Figures 1 to 5In this embodiment, when observed from the circumference of the annular space, all the first tooth portions 11 and all the second tooth portions 21 are arranged in a staggered manner, with one first tooth portion 11 and one second tooth portion 21 arranged alternately in sequence. The first tooth portion 11 and the second tooth portion 21 are staggered in the annular space, which can improve the compactness of the structure, greatly save the volume of the motor, and can be used in small motors. It is beneficial to increase the winding operation space of the first winding 31 and the second winding 32, and facilitate the winding work and the subsequent assembly operation of the first block 1 and the second block 2. The specific size of the annular space in the motor is not limited here. The first winding 31 can be wound on the first tooth portion 11 and the second winding 32 can be wound on the second tooth portion 21, and during the block winding process, the first winding 31 and the second winding 32 only need to have enough winding space.

[0057] It should be noted that the spacing between the first teeth 11 of the plurality of first teeth 11 on the first block 1 and the spacing between the second teeth 21 on the second block 2 are not limited here, and the spacing between the second teeth 21 of the plurality of first teeth 11 on the first block 1 and the second block 2 can be satisfied as long as the first block 1 and the second block 2 can be precisely assembled. In a preferred case, the plurality of first teeth 11 are evenly arranged along the circumference of the first block 1, and the plurality of second teeth 21 are evenly arranged along the circumference of the second block 2. Furthermore, after the first block 1 and the second block 2 are assembled, the spacing between each first tooth 11 and the second tooth 21 is the same. Through such an arrangement, the first tooth portions 11 or the first tooth portions 11 groups in different arrangements are uniformly arranged along the circumference of the first block 1, and the second tooth portions 21 or the second tooth portions 21 groups are uniformly arranged along the circumference of the second block 2, so that the geometric centers and rotational centers of the first block 1 and the second block 2 coincide after assembly, thereby improving the stability of the motor operation; through the uniform circumferential arrangement, the spacing between all the first tooth portions 11 and the second tooth portions 21 is the same, so that the structural form and winding method of the first winding 31 and the second winding 32 are the same, and thus the first block 1 and the second block 2 are more flexible during the assembly process, that is, the second block 2 can be rotated to multiple angles along the center of the annular space to complete the splicing with the first block 1.

[0058] Combination Figures 1 to 3 , a first limiting portion 12 is provided at the end of the first tooth portion 11, a second limiting portion 22 is provided on the second block 2, and the first limiting portion 12 is connected to the second limiting portion 22 in a one-to-one correspondence; a third limiting portion 13 is provided on the first block 1, a fourth limiting portion 23 is provided at the end of the second tooth portion 21, and the third limiting portion 13 is connected to the fourth limiting portion 23 in a one-to-one correspondence. Through such a setting, the end of the first tooth portion 11 is connected to the second block 2, so that the first tooth portion 11 has a better supporting effect on the first winding 31 during the rotation of the motor, and the end of the second tooth portion 21 is connected to the first block 1, so that the second tooth portion 21 has a better supporting effect on the second winding 32 during the rotation of the motor, thereby improving the overall stability of the first block 1 and the second block 2 after assembly.

[0059] It should be noted that the structural form of the first limiting portion 12 and the second limiting portion 22 is not limited here. Optionally, the first limiting portion 12 and the second limiting portion 22 are correspondingly arranged dovetail groove structures, which are used to connect the first limiting portion 12 and the second limiting portion 22 to complete the assembly of the first block 1 and the second block 2; other card-joining forms can also be used to connect the first limiting portion 12 and the second limiting portion 22. Similarly, the structural form and connection method of the third limiting portion 13 and the fourth limiting portion 23 are the same as those of the first limiting portion 12 and the second limiting portion 22. A first limiting portion 12 is provided at the end of the first tooth portion 11, and the first limiting portion 12 is connected to the second limiting portion 22 on the second block 2, so that the winding of the first winding 31 on the first limiting portion 12 is more stable. At the same time, during the rotation of the motor, the end of the first tooth portion 11 obtains a supporting effect in the second block 2, so that the operation of the motor is more stable. Similarly, a fourth limiting portion 23 is provided at the end of the second tooth portion 21, and the fourth limiting portion 23 is connected to the third limiting portion 13 on the first block 1, so that the winding of the second winding 32 on the second limiting portion 22 is more stable. At the same time, during the rotation of the motor, the end of the second tooth portion 21 obtains a supporting effect in the first block 1, further improving the integrity and assembly accuracy of the motor and improving the running stability of the motor.

[0060] Combination Figure 4 and Figure 5 In this embodiment, the first winding 31 and the second winding 32 are arranged at intervals in the annular space. When the first tooth portions 11 are evenly arranged along the circumference of the first block 1 and the second tooth portions 21 are evenly arranged along the circumference of the second block 2, it is preferred that the spacing between all the first tooth portions 11 and the second tooth portions 21 are the same, so that the first winding 31 and the second winding 32 have the same size and winding method, and the second block 2 can be assembled in multiple axial directions inside the first block 1, which is conducive to ensuring flexible assembly and assembly accuracy of the motor.

[0061] Embodiment 2

[0062] In a motor block structure, a first block 1 and a second block 2 form an annular space, a plurality of first teeth 11 are arranged in an annular manner on the first block 1 and are located in the annular space, and a plurality of second teeth 21 are arranged in an annular manner on the second block 2 and are located in the annular space. Figures 6 to 8In this embodiment, all the second teeth 21 are divided into multiple groups according to the number, and the number of the second teeth 21 in each group is greater than or equal to two. When observed from the circumference of the annular space, the arrangement of all the first teeth 11 and all the second teeth 21 is that one first tooth 11 and one group of second teeth 21 are arranged alternately in sequence. In a preferred case, multiple first teeth 11 are evenly arranged along the circumference of the first block 1, and multiple groups of second teeth 21 are evenly arranged along the circumference of the second block 2. Through such an arrangement, the first block 1 and the second block 2 can be assembled in multiple assembly directions, which promotes the flexibility and assembly efficiency of the motor block transfer. Under this motor block structure, for a motor with a relatively small volume, the winding space of the first winding 31 on the first block 1 is limited. By corresponding one first tooth 11 to a group of second teeth 21, the winding space of the first winding 31 on the first block 1 can be expanded, and multiple groups of second teeth 21 can also meet the slot full rate in the motor without affecting the motor performance.

[0063] In a preferred case, a first limiting portion 12 is provided at the end of the first tooth portion 11, a second limiting portion 22 is provided on the second block 2, and the first limiting portion 12 is connected to the second limiting portion 22 in a one-to-one correspondence; a third limiting portion 13 is provided on the first block 1, a fourth limiting portion 23 is provided at the end of the second tooth portion 21, and the third limiting portion 13 is connected to the fourth limiting portion 23 in a one-to-one correspondence.

[0064] It should be noted that, in an optional case, when the first block 1 and the second block 2 of the motor have enough space to meet the winding of the winding assembly 3, all the first teeth 11 are divided into multiple groups according to the number, and the number of the first teeth 11 in each group is greater than or equal to two. When observed from the circumference of the annular space, the arrangement of all the first teeth 11 and all the second teeth 21 is that one group of first teeth 11 and one second tooth 21 are arranged alternately in sequence. Further, multiple groups of first teeth 11 are evenly arranged along the circumference of the first block 1, and multiple second teeth 21 are evenly arranged along the circumference of the second block 2. In another optional case, all the first teeth 11 are divided into multiple groups according to the number, and the number of the first teeth 11 in each group is greater than or equal to two, and all the second teeth 21 are divided into multiple groups according to the number, and the number of the second teeth 21 in each group is greater than or equal to two. When observed from the circumference of the annular space, the arrangement of all the first teeth 11 and all the second teeth 21 is that one group of first teeth 11 and one group of second teeth 21 are arranged alternately in sequence. Further, multiple groups of first teeth 11 are evenly arranged along the circumference of the first block 1, and multiple groups of second teeth 21 are evenly arranged along the circumference of the second block 2. Through such a setting, the arrangement of the first teeth 11 and the second teeth 21 can be determined according to the processing requirements of the motor and the winding space requirements of the winding assembly 3. Different arrangements correspond to different winding sizes of the first winding 31 and the second winding 32, which is conducive to ensuring the slot full rate and reducing the air gap size in the motor under different conditions. The first teeth 11 or the first teeth 11 group under different arrangements are evenly arranged along the circumference of the first block 1, and the second teeth 21 or the second teeth 21 group are evenly arranged along the circumference of the second block 2, so that the geometric center and the rotation center of gravity of the first block 1 and the second block 2 coincide after assembly, thereby improving the stability of the motor operation; through the uniform circumferential arrangement, the first block 1 and the second block 2 are more flexible during the assembly process, that is, the second block 2 can be rotated to multiple angles along the center of the annular space to complete the splicing with the first block 1. The configuration and beneficial effects of the first limiting portion 12 , the second limiting portion 22 , the third limiting portion 13 and the fourth limiting portion 23 are the same as those in the first embodiment and will not be described in detail herein.

[0065] Embodiment 3

[0066] In a motor block structure, a first block 1 and a second block 2 form an annular space, a plurality of first teeth 11 are arranged in an annular manner on the first block 1 and are located in the annular space, a plurality of second teeth 21 are arranged in an annular manner on the second block 2 and are located in the annular space, a plurality of first teeth 11 are located on a first loop line, a plurality of second teeth 21 are located on a second loop line, the first loop line is located outside the second loop line, and in the radial direction of the motor, the ends of the first teeth 11 are connected to the ends of the second teeth 21 in a one-to-one correspondence. Figures 9 to 13, the first tooth portion 11 and the second tooth portion 21 are butted, in a preferred case, the first winding 31 is wound on the first tooth portion 11 in a one-to-one correspondence, and the second winding 32 is wound on the second tooth portion 21 in a one-to-one correspondence, and in the radial direction of the motor, the first winding 31 and the second winding 32 are arranged in alignment. It should be noted that the winding length of the first winding 31 along the radial direction where the first tooth portion 11 is located is less than or equal to the length of the first tooth portion 11, and the winding length of the second winding 32 along the radial direction where the second tooth portion 21 is located is less than or equal to the length of the second tooth portion 21. Through such a setting, the first tooth portion 11 is set on the first loop line, and the second tooth portion 21 is set on the second loop line. At this time, the first winding 31 is wound on the first loop line, and the second winding 32 is wound on the second loop line. During the assembly process of the first block 1 and the second block 2, the first winding 31 and the second winding 32 are not staggered on the same loop line, making the assembly operation of the first block 1 and the second block 2 simpler. A first winding 31 is wound on each first tooth portion 11, and a second winding 32 is wound on each second tooth portion 21. The first tooth portions 11 and the second tooth portions 21 are connected one-to-one, so that the first winding 31 and the second winding 32 are arranged correspondingly in the radial direction of the motor, and the concentrated windings are layered, so that the number of turns and the number of branches of the motor are more flexible and easy to design.

[0067] In a preferred case, a plurality of first teeth 11 are evenly arranged along the circumference of the first block 1, and a plurality of second teeth 21 are evenly arranged along the circumference of the second block 2. The evenly arranged first teeth 11 and second teeth 21 make the distance between two adjacent first teeth 11 consistent, the winding space of the first winding 31 the same, and thus the size of the first winding 31 the same, the distance between two adjacent second teeth 21 consistent, the winding space of the second winding 32 the same, and thus the size of the second winding 32 the same, which facilitates the winding of the first winding 31 and the second winding 32; the first teeth 11 and the second teeth 21 are evenly arranged and connected one by one, making the first block 1 and the second block 2 more flexible during the assembly process, that is, the second block 2 can be rotated to multiple angles along the center of the annular space to complete the assembly with the first block 1. In addition, the first tooth portions 11 and the second tooth portions 21 are evenly arranged in the circumferential direction, so that the sizes and winding methods of all the first windings 31 are consistent, and the sizes and winding methods of all the second windings 32 are consistent, which is conducive to standardized winding processing, improves the efficiency of motor block processing, and reduces the dimensional error of processing and improves assembly accuracy.

[0068] Combination Figures 9 to 11In a preferred case, a first limiting portion 12 is provided at the end of the first tooth portion 11, and a fourth limiting portion 23 is provided at the end of the second tooth portion 21, and the first limiting portion 12 is connected to the fourth limiting portion 23 in a one-to-one correspondence. By such a configuration, the first limiting portion 12 is provided at the end of the first tooth portion 11, and the fourth limiting portion 23 is provided at the end of the second tooth portion 21, so as to ensure the connection effect between the first block 1 and the second block 2; the first limiting portion 12 and the second limiting portion 22 are provided in correspondence, so that the second block 2 can be rotated to multiple directions inside the first block 1 and connected to the first block 1, which is more convenient for the assembly operation of the first block 1 and the second block 2 when multiple first tooth portions 11 and second tooth portions 21 are provided. In addition, the first limiting portion 12 is provided on each first tooth portion 11, and the fourth limiting portion 23 is provided on the second tooth portion 21, so that the connection between the first block 1 and the second block 2 is more firm and the operation is more stable.

[0069] It should be noted that the specific lengths of the first tooth portion 11 and the second tooth portion 21 are not limited here, and the size of the annular space is set according to the model requirements of the motor, and the radial dimensions of the first loop wire and the second loop wire are not limited, and the radial dimensions of the first loop wire and the second loop wire are adaptively adjusted according to the size of the annular space. The axial winding lengths of the corresponding first winding 31 and the second winding 32 in the annular space can also be adjusted according to the first tooth portion 11 and the second tooth portion 21.

[0070] Embodiment 4

[0071] In a motor block structure, the layout of the first tooth portion 11 and the second tooth portion 21 is consistent with that of the third embodiment. The difference between this embodiment and the third embodiment is that the first winding 31 is wound on the first tooth portion 11 in an intermittent arrangement, and the second winding 32 is wound on the second tooth portion 21 in an intermittent arrangement. In the radial direction of the motor, the first winding 31 and the second winding 32 are staggered. Through such an arrangement, the winding space of the first winding 31 on the first tooth portion 11 and the winding space of the second winding 32 on the second tooth portion 21 are large, which is convenient for the winding operation. At the same time, when other components such as Hall elements need to be set in the motor, the intermittent arrangement of the first winding 31 and the second winding 32 can form a winding assembly 3 that is not wound on part of the first tooth portion 11 and the second tooth portion 21. At this time, other components such as Hall elements can be set on the unwound first tooth portion 11 or the second tooth portion 21. The arrangement of the remaining annular space, the first tooth portion 11 and the second tooth portion 21 , the first limiting portion 12 and the fourth limiting portion 23 in this embodiment is consistent with that in the third embodiment and will not be described in detail here.

[0072] It should be noted that in the above embodiments, the number of the first tooth portion 11 and the second tooth portion 21 is not limited. The number of the first tooth portion 11 and the second tooth portion 21 is adjusted according to the model requirements of the motor, which can facilitate the winding process of the winding assembly 3 and the assembly of the first block 1 and the second block 2. In the motor, according to the actual structure of the motor, the blocks assembled can be stators or rotors, and there is no limitation here. In addition, optionally, the cross-sectional shape of the first block 1 and the second block 2 can be polygonal or circular. Preferably, the center of the interface shape of the second block 2 is set to be circular or a circular auxiliary groove structure is opened, so that the pulsation is smaller when the motor is running.

[0073] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the appended claims of the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the appended claims, or the equivalent forms of such scope and boundaries.

Claims

1. A motor block structure, characterized in that: The motor block structure comprises: a first block (1), a second block (2) and a winding assembly (3), wherein the second block (2) is connected to the inner side of the first block (1), the first block (1) is provided with a plurality of first tooth portions (11), the second block (2) is provided with a plurality of second tooth portions (21), the winding assembly (3) comprises a plurality of first windings (31) and a plurality of second windings (32), the number of the first windings (31) is less than or equal to the number of the first tooth portions (11), the number of the second windings (32) is less than or equal to the number of the second tooth portions (21), the first winding (31) is wound on the corresponding first tooth portion (11), and the second winding (32) is wound on the corresponding second tooth portion (21).

2. The motor block structure according to claim 1, characterized in that: The first block (1) and the second block (2) form an annular space, a plurality of the first teeth (11) are arranged in an annular manner on the first block (1) and are located in the annular space, a plurality of the second teeth (21) are arranged in an annular manner on the second block (2) and are located in the annular space, and the first teeth (11) and the second teeth (21) are arranged alternately in the annular space.

3. The motor block structure according to claim 2, characterized in that: Observed from the circumference of the annular space, all the first tooth portions (11) and all the second tooth portions (21) are arranged in such a manner that one first tooth portion (11) and one second tooth portion (21) are alternately arranged in sequence; or, All the first teeth (11) are divided into a plurality of groups according to the number of the first teeth (11), the number of the first teeth (11) in each group is greater than or equal to two, and when viewed from the circumference of the annular space, all the first teeth (11) and all the second teeth (21) are arranged in a staggered manner: one group of the first teeth (11) and one second tooth (21) are arranged in sequence; or, All the second teeth (21) are divided into a plurality of groups according to the number of the second teeth (21), the number of the second teeth (21) in each group is greater than or equal to two, and when viewed from the circumference of the annular space, all the first teeth (11) and all the second teeth (21) are arranged in a staggered manner: one first tooth (11) and one group of the second teeth (21) are arranged in sequence; or, All the first teeth (11) are divided into a plurality of groups in equal numbers, and the number of the first teeth (11) in each group is greater than or equal to two; all the second teeth (21) are divided into a plurality of groups in equal numbers, and the number of the second teeth (21) in each group is greater than or equal to two; and when observed from the circumference of the annular space, all the first teeth (11) and all the second teeth (21) are arranged in such a manner that a group of the first teeth (11) and a group of the second teeth (21) are arranged alternately in sequence.

4. The motor block structure according to claim 3, characterized in that: In a case where the arrangement of all the first tooth portions (11) and all the second tooth portions (21) is that one first tooth portion (11) and one second tooth portion (21) are arranged alternately in sequence, a plurality of the first tooth portions (11) are evenly arranged along the circumference of the first block (1), and a plurality of the second tooth portions (21) are evenly arranged along the circumference of the second block (2); In a case where the arrangement of all the first tooth portions (11) and all the second tooth portions (21) is that a group of the first tooth portions (11) and one of the second tooth portions (21) are arranged alternately in sequence, a plurality of groups of the first tooth portions (11) are evenly arranged along the circumference of the first block (1), and a plurality of the second tooth portions (21) are evenly arranged along the circumference of the second block (2); In a case where the arrangement of all the first tooth portions (11) and all the second tooth portions (21) is that one first tooth portion (11) and a group of the second tooth portions (21) are arranged alternately in sequence, a plurality of the first tooth portions (11) are evenly arranged along the circumference of the first block (1), and a plurality of groups of the second tooth portions (21) are evenly arranged along the circumference of the second block (2); In a case where the arrangement of all the first tooth portions (11) and all the second tooth portions (21) is such that a group of the first tooth portions (11) and a group of the second tooth portions (21) are arranged alternately in sequence, a plurality of groups of the first tooth portions (11) are evenly arranged along the circumference of the first block (1), and a plurality of groups of the second tooth portions (21) are evenly arranged along the circumference of the second block (2).

5. The motor block structure according to any one of claims 1 to 4, characterized in that: A first limiting portion (12) is provided at the end of the first tooth portion (11), a second limiting portion (22) is provided on the second block (2), and the first limiting portion (12) and the second limiting portion (22) are connected in a one-to-one correspondence; The first block (1) is provided with a third limiting portion (13), the end of the second tooth portion (21) is provided with a fourth limiting portion (23), and the third limiting portion (13) and the fourth limiting portion (23) are connected in a one-to-one correspondence.

6. The motor block structure according to claim 1, characterized in that: The first block (1) and the second block (2) form an annular space, a plurality of the first teeth (11) are arranged in an annular manner on the first block (1) and are located in the annular space, a plurality of the second teeth (21) are arranged in an annular manner on the second block (2) and are located in the annular space, a plurality of the first teeth (11) are located on a first ring line, a plurality of the second teeth (21) are located on a second ring line, the first ring line is located outside the second ring line, and in the radial direction of the motor, the ends of the first teeth (11) are connected to the ends of the second teeth (21) in a one-to-one correspondence.

7. The motor block structure according to claim 6, characterized in that: The first windings (31) are wound on the first tooth portions (11) in a one-to-one correspondence, and the second windings (32) are wound on the second tooth portions (21) in a one-to-one correspondence. In the radial direction of the motor, the first windings (31) and the second windings (32) are arranged in a one-to-one alignment.

8. The motor block structure according to claim 6, characterized in that: The first winding (31) is wound on the first tooth portion (11) in an intermittent arrangement, and the second winding (32) is wound on the second tooth portion (21) in an intermittent arrangement. In the radial direction of the motor, the first winding (31) and the second winding (32) are staggered.

9. The motor block structure according to claim 6, characterized in that: A plurality of the first tooth portions (11) are evenly arranged along the circumference of the first block (1), and a plurality of the second tooth portions (21) are evenly arranged along the circumference of the second block (2).

10. The motor block structure according to any one of claims 6 to 9, characterized in that: A first limiting portion (12) is provided at the end of the first tooth portion (11), and a fourth limiting portion (23) is provided at the end of the second tooth portion (21); the first limiting portion (12) and the fourth limiting portion (23) are connected in a one-to-one correspondence.

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