Stator assemblies, motors and electromechanical devices

Abstract

The present invention provides a stator assembly, a motor and an electromechanical device. The stator assembly includes: a stator core, including a stator yoke and a stator tooth; the stator yoke has a notch and includes at least one stator yoke segment; the stator tooth includes at least one stator tooth shoe and at least two stator tooth bodies; at least two stator tooth bodies are arranged along the circumference of the stator core; the two ends of any stator tooth body are respectively connected to the stator yoke segment and the stator tooth shoe, any two adjacent stator tooth bodies are connected by the stator tooth shoe or the stator yoke segment, and the stator tooth shoe of the stator tooth part and the stator yoke segment of the stator yoke part are arranged alternately along the circumference of the stator core; a winding coil is wound on the stator tooth body, and the winding coils on the two stator tooth bodies connected by the stator yoke segment are wound in opposite directions; an insulating member is connected to the stator core and is located between the winding coil and the stator core. The present application reduces the weight and production cost of the stator core and can reduce the heat generated by the motor.

Description

Technical Field

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

[0002] The structure of the stator core of an existing motor is usually as follows: a stator tooth portion is arranged on a complete annular stator yoke portion, and the stator tooth portion includes a plurality of stator tooth bodies and stator tooth shoes corresponding to the plurality of stator tooth bodies one by one. The entire stator core is heavy, which is not conducive to the lightweight of the motor and has a high cost. Summary of the invention

[0003] In order to solve at least one of the above technical problems, a first object of the present invention is to provide a stator assembly.

[0004] A second object of the present invention is to provide a motor comprising the above-mentioned stator assembly.

[0005] A third object of the present invention is to provide an electromechanical device comprising the above motor.

[0006] In order to achieve the above-mentioned purpose, the technical solution of the first aspect of the present invention provides a stator assembly, comprising: a stator core, the stator core comprising a stator yoke and a stator tooth portion; the stator yoke portion has a notch, and the stator yoke portion comprises at least one stator yoke segment; the stator tooth portion comprises at least one stator tooth shoe and at least two stator tooth bodies arranged along the circumferential direction of the stator core; wherein the two ends of any stator tooth body are respectively connected to the stator yoke segment and the stator tooth shoe, any two adjacent stator tooth bodies are connected through the stator tooth shoe or the stator yoke segment, and the stator tooth shoe of the stator tooth portion and the stator yoke segment of the stator yoke portion are arranged alternately along the circumferential direction of the stator core; a winding coil, which is wound on the stator tooth body, and the winding coils on the two stator tooth bodies connected by the stator yoke segment are wound in opposite directions; an insulating member, which is connected to the stator core, is located between the winding coil and the stator core, and is used to isolate the winding coil from the stator core.

[0007] The stator assembly provided by the technical solution of the first aspect of the present invention uses stator tooth boots and stator yoke segments that are staggered along the circumference of the stator core to connect multiple stator tooth bodies together, so that the stator yoke and the stator tooth parts are connected as a whole. In other words, any two adjacent stator tooth bodies are connected as a whole only through the stator tooth boots or the stator yoke segments. For any two adjacent stator tooth bodies connected by the stator tooth boots, the ends of the two stator tooth bodies facing the stator yoke are not connected by the stator yoke segments, so the stator yoke is disconnected between the two stator tooth bodies and has a gap. Therefore, the stator yoke in the present application is a non-annular structure. Compared with the annular stator yoke in the prior art, the circumferential size of the stator yoke is reduced, thereby reducing the weight of the stator core, and is also conducive to reducing the size of the insulating parts connected to the stator core, which is conducive to the lightweight of the motor, and also reduces the production cost of the product. In addition, the notch portion of the stator yoke is convenient for airflow to pass through, which is conducive to heat dissipation inside the motor, thereby helping to improve the reliability of the motor.

[0008] In addition, the winding coil is wound on the stator tooth body, and the winding coils on the two stator teeth connected to the same stator yoke segment are wound in opposite directions. Then, one stator yoke segment is equivalent to being connected to two winding coils, and one stator tooth shoe is also equivalent to being connected to two winding coils. Compared with the scheme in which one stator yoke segment or one stator tooth shoe is connected to one winding coil, this scheme increases the number of winding coils, increases the back electromotive force of the motor, and reduces the input current, which can reduce the heat generated by the motor and provide strong protection for the operation of electrical components such as chips inside the motor.

[0009] In addition, the stator assembly in the above technical solution provided by the present invention may also have the following additional technical features:

[0010] In the above technical solution, the stator tooth shoe protrudes from the connected stator tooth body along the circumferential direction of the stator core; and / or the stator yoke segment protrudes from the connected stator tooth body along the circumferential direction of the stator core.

[0011] The stator tooth shoe protrudes from the connected stator tooth body along the circumference of the stator core, which is convenient for connecting adjacent stator tooth bodies and is also beneficial for increasing the area of ​​the stator tooth shoe, thereby improving the matching effect between the stator core and the rotor assembly.

[0012] The stator yoke segments protrude from the connected stator tooth bodies along the circumference of the stator core, which is convenient for connecting adjacent stator tooth bodies and is also beneficial for increasing the circumferential length of the stator yoke, thereby improving the strength and reliability of the stator yoke.

[0013] In any of the above technical solutions, the stator tooth body extends radially along the stator core; and / or the stator tooth shoe extends circumferentially along the stator core; and / or the stator yoke segment is located radially outside or radially inside the stator tooth shoe.

[0014] The stator teeth extend radially along the stator core to form a radial motor.

[0015] The stator tooth shoe extends along the circumference of the stator core, which is convenient for connecting two adjacent stator tooth bodies and is also beneficial for reducing the axial size of the product.

[0016] The stator yoke section is located radially outside the stator tooth shoe, and can cooperate with the rotor assembly to form an inner rotor motor. Since the radius of the stator yoke of the inner rotor motor is relatively large, the solution of the present application is conducive to significantly reducing the circumferential size of the stator yoke, thereby significantly reducing the weight and cost of the motor. Alternatively, the stator yoke section can also be located radially inside the stator tooth shoe, so that the stator core can cooperate with the rotor assembly to form an outer rotor motor, which can also reduce the weight and cost of the outer rotor motor.

[0017] In any of the above technical solutions, the number of the stator yoke segments is at least two, the number of the stator tooth shoes is equal to the number of the stator yoke segments, and the stator yoke segments and the stator tooth shoes are arranged alternately one by one along the circumferential direction of the stator core.

[0018] Multiple stator yoke segments and multiple stator tooth shoes are staggered one by one along the circumference of the stator core to form a regular structure. Compared with the annular yoke in the prior art, the stator yoke is reduced by half, which is beneficial to significantly reduce the weight and cost of the motor.

[0019] In any of the above technical solutions, the stator yoke segment is in an arc shape or a straight line shape; and / or the stator tooth shoe is in an arc shape or a straight line shape.

[0020] The stator yoke section is arc-shaped with a regular structure and is easy to process and shape.

[0021] The stator yoke segment is straight-line in shape and has a regular structure, which is convenient for processing and forming. Compared with the arc-shaped solution, it is beneficial to reduce the radial size of the stator core, thereby reducing the radial size of the motor.

[0022] The stator tooth shoe is in an arc shape or a straight line shape, with a regular structure and easy processing and forming. Moreover, such an arrangement allows the functions of the stator yoke section and the stator tooth shoe to be interchangeable, so that the stator core can be used for both inner rotor motors (the inner side is the stator tooth shoe and the outer side is the stator yoke) and outer rotor motors (the inner side is the stator yoke and the outer side is the stator tooth shoe), thus expanding the application range of the stator core.

[0023] In some technical solutions of the present invention, the stator core is an integrated structure, and the stator core is formed by stacking a plurality of punching sheets.

[0024] The stator core is an integrated structure, which is directly formed by stacking multiple punching sheets. You only need to select suitable punching sheets according to the shape of the stator core, and then stack and hold the multiple punching sheets together by welding or gluing to obtain the stator core. The process is simple and easy to form.

[0025] In the above technical solution, the stator core is an integrated structure formed by welding; the side wall of the stator yoke section is provided with at least one protrusion or recess, and the welding position of the stator core is provided at the protrusion or recess.

[0026] At least one protrusion or recess is provided on the side wall of the stator yoke segment, and the welding position is set at the protrusion or recess. Then, welding is performed directly along the protrusion or recess, so that multiple punching sheets can be welded together. The resulting weld is straighter and more beautiful, and the influence of the weld on the magnetic circuit can be minimized.

[0027] In the above technical solution, the insulating member is connected to the stator core to form an integrated structure, so that the winding coil is suitable for being wound on the stator tooth body after the insulating member and the stator core form the integrated structure.

[0028] The insulator is connected to the stator core to form an integral structure and cannot be separated. During the production process, the insulator must be connected to the stator core as a whole. Specifically, the insulator can be injection molded on the stator core by injection molding, and then the winding operation is performed. This solution can effectively ensure the connection reliability between the insulator and the stator core, thereby improving the reliability of the motor.

[0029] In some other technical solutions of the present invention, the stator core includes at least two splicing parts, and the at least two splicing parts are spliced ​​together to form the stator core, and each of the splicing parts is formed by stacking a plurality of punching sheets.

[0030] The stator core is split into at least two splicing parts, each of which is formed by stacking a plurality of punching sheets. The size of the punching sheets in a single splicing part is small, which is conducive to reducing the amount of waste generated by processing the punching sheets, thereby improving the utilization rate of raw materials and reducing production costs. At the same time, this scheme is also convenient for choosing to wind first and then splice or splice first and then wind according to needs, which is conducive to simplifying the winding process and improving assembly efficiency. Furthermore, for a single splicing part, a protruding part or a recessed part can also be set, and the welding position is set at the protruding part or the recessed part, and a plurality of punching sheets are held together by welding to form a splicing part.

[0031] In the above technical solution, the splicing position of the at least two splicing parts is recorded as the splicing point of the stator core; wherein, the stator tooth body and the stator yoke segment are constructed as a split structure, and the splicing point includes the intersection of the stator tooth body and the stator yoke segment; and / or the stator yoke segment is constructed into at least two yoke segments spliced ​​together along the circumference of the stator core, and the splicing point includes the intersection of the at least two yoke segments; and / or the stator tooth shoe is constructed into at least two tooth shoe segments spliced ​​together along the circumference of the stator core, and the splicing point includes the intersection of the at least two tooth shoe segments.

[0032] The joint of the stator core is also the division of the stator core, that is, the stator core is disconnected along the joint, so that the stator core forms at least two joints. In other words, the stator core is divided and disconnected along at least a part of the junction between the stator tooth body and the stator yoke segment, the stator yoke segment, and the stator tooth shoe to form a split structure.

[0033] The stator tooth body and the stator yoke segment are constructed into a split structure, formed separately, and then spliced ​​together, so that the intersection of the stator tooth body and the stator yoke segment forms at least a part of the splicing. This solution is convenient for selecting the first tooth winding according to needs, and then splicing the stator yoke segment that has completed the winding operation with the stator tooth body, which is conducive to simplifying the winding process and improving assembly efficiency. At the same time, the structure of a single stator yoke segment is relatively regular, and the waste generated during the punching and forming of a single stator yoke segment is also less, which is conducive to further reducing the amount of waste raw materials and further improving the utilization rate of raw materials.

[0034] The stator yoke segment is constructed into at least two yoke segments, and the multiple yoke segments are spliced ​​with each other along the circumference of the stator core, so that the two yoke segments, the two stator tooth bodies and the stator tooth shoes can be designed as a whole according to needs. During assembly, it is only necessary to assemble the adjacent yoke segments along the circumferential direction, which is beneficial to reduce the number of splicing parts and the splicing positions, thereby improving assembly efficiency.

[0035] The stator tooth shoe is constructed into at least two tooth shoe segments, and the multiple tooth shoe segments are spliced ​​with each other along the circumference of the stator core, so that the two tooth shoe segments, the two stator tooth bodies and the stator yoke segment can be designed as a whole according to needs. During assembly, it is only necessary to assemble the adjacent tooth shoe segments along the circumference, which is beneficial to reduce the number of splicing parts and the splicing positions, thereby improving assembly efficiency.

[0036] In the above technical solution, one of the two adjacent splicing parts is provided with a convex part, and the other is provided with a concave part matched with the convex part, and the convex part and the concave part cooperate with each other to splice and connect the two adjacent splicing parts.

[0037] The two adjacent splicing parts are assembled by the cooperation of the convex part and the concave part, which is convenient for assembly and helps to further improve the assembly efficiency.

[0038] In the above technical solution, two circumferential ends of the splicing portion are provided with splicing bosses, the splicing bosses protrude from the splicing portion in the radial direction of the stator core, and the splicing bosses are provided with the convex portion or the concave portion.

[0039] By providing splicing bosses at both circumferential ends of the splicing part, and providing the convex part or the concave part on the splicing bosses, the splicing bosses of the adjacent splicing parts are aligned during assembly so that the convex parts are embedded in the concave parts one by one, thereby realizing the circumferential assembly of multiple splicing parts, and the assembly is convenient and quick. At the same time, since the splicing bosses protrude from the splicing part in the radial direction of the stator core, the circumferential structure of the splicing part will not be affected, which is conducive to ensuring the integrity of the circumferential structure of the splicing part, thereby reducing the impact on the magnetic circuit. For example: for the aforementioned scheme of constructing the stator yoke segment into at least two yoke segments, the two yoke segments, the two stator tooth bodies and the stator tooth boots can be designed as a whole, and splicing bosses are respectively provided at the opposite ends of the two yoke segments, and the multiple splicing parts can be directly connected through the splicing bosses, which is simple and quick.

[0040] In the above technical solution, the insulating part and the stator core are split structures, and the insulating part is a split structure, the insulating part includes at least two insulating parts, and the at least two insulating parts correspond one by one to multiple splicing parts of the stator core, so that: the winding coil is suitable for being wound on the insulating part by a winding tool, and the insulating part is connected to the corresponding splicing part after the winding operation is completed; or the winding coil is suitable for being wound on the splicing part after the insulating part is connected to the corresponding splicing part.

[0041] The insulating part and the stator core are split structures, which are formed separately and then assembled. In addition, the insulating part is also a split structure, which is divided into at least two insulating parts, corresponding to the multiple splicing parts of the stator core. In this way, during the production process, the stator core can be wound first and then spliced ​​and assembled as needed, which is conducive to reducing the difficulty of winding and thus improving the assembly efficiency. Compared with the solution of winding directly on the stator core and then connecting the stator core and the insulating part, this solution can prevent the stator core from being bent and deformed due to excessive force when winding directly on the stator core, which is conducive to improving the stability of the shape of the stator core. Specifically, the insulating part can be first put on the winding tooling, and the winding coil can be wound along the preset direction. After the winding is completed, the insulating part can be installed on the splicing part, and then the multiple splicing parts can be spliced ​​together. Alternatively, the insulating part may be first installed on the splicing part to form an assembly, and then the winding coil may be wound on the assembly formed by the insulating part and the splicing part along a preset direction. After the winding is completed, the multiple splicing parts may be spliced ​​together.

[0042] In any of the above technical solutions, the winding coils on the two stator teeth connected by the stator yoke are connected in series to form a group of windings; or the winding coils on the two stator teeth connected by the stator tooth shoes are connected in parallel to form a group of windings; or the number of the stator tooth bodies is an even number, and the even number of the stator tooth bodies are evenly distributed along the circumference of the stator core, and the winding coils on the two stator teeth that differ by 180° are connected in series or in parallel to form a group of windings.

[0043] The winding coils on the two stator teeth connected by the stator yoke are close to each other. The two winding coils are connected in series to form a group of windings. The connection method is relatively simple and easy to implement.

[0044] The winding coils on the two stator teeth connected by the stator tooth shoes are close to each other. The two winding coils are connected together in parallel to form a group of windings. The connection method is also relatively simple and easy to implement.

[0045] The number of stator tooth bodies is an even number (recorded as 2n, where n is a positive integer), then the number of stator tooth shoes and stator yoke segments is half of the number of stator tooth bodies (i.e., n), and the stator tooth shoes and stator yoke segments are staggered along the circumference of the stator core. In addition, multiple stator tooth bodies are evenly distributed along the circumference of the stator core to form a radial structure, and the even number of stator tooth bodies are opposite to each other (i.e., the two stator tooth bodies in each pair of stator tooth bodies are 180° apart along the circumference of the stator core), and the winding coils on a pair of stator tooth bodies are connected in series or in parallel to form a group of windings. The connection method is also relatively simple and easy to implement.

[0046] In any of the above technical solutions, the winding coil is a single-wire structure or a multi-wire structure. In the specific production process, it can be reasonably selected according to needs.

[0047] In any of the above technical solutions, the connection mode of the winding coils is star or triangle.

[0048] The technical solution of the second aspect of the present invention provides a motor, comprising: a stator assembly as described in the technical solution of the first aspect; and a rotor assembly, which is arranged concentrically with the stator assembly.

[0049] The motor provided by the technical solution of the second aspect of the present invention includes the stator assembly described in the technical solution of the first aspect, and thus has all the beneficial effects of any of the above technical solutions, which will not be repeated here.

[0050] The rotor assembly can be sleeved on the inner side of the stator assembly to form an inner rotor motor, or can be sleeved on the outer side of the stator assembly to form an outer rotor motor.

[0051] In the above technical solution, the number of stator yoke segments of the stator assembly is three, the number of stator tooth shoes of the stator assembly is three, and the number of stator tooth bodies of the stator assembly is six; the rotor assembly includes a permanent magnet ring, the permanent magnet ring is an integrated structure or a split splicing structure, and the permanent magnet ring is a two-pole permanent magnet ring, a four-pole permanent magnet ring, or an eight-pole permanent magnet ring.

[0052] The motor of this solution has a simpler structure, is more commonly used, and has high reliability in use.

[0053] The technical solution of the third aspect of the present invention provides an electromechanical device, comprising: a device body; and the motor as described in the technical solution of the second aspect, which is arranged in the device body.

[0054] The electromechanical device provided by the technical solution of the third aspect of the present invention includes the motor described in the technical solution of the second aspect, and thus has all the beneficial effects of the above technical solutions, which will not be described in detail here.

[0055] In the above technical solution, the electromechanical equipment is household appliances, medical equipment, power generation and energy storage equipment, chemical detection and material wind power equipment or unmanned aerial vehicles.

[0056] Of course, the electromechanical device is not limited to the above-mentioned devices, and may also be other devices using motors.

[0057] Additional aspects and advantages of the present invention will become apparent from the following description or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] 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:

[0059] Figure 1 is a schematic structural diagram of a stator core according to an embodiment of the present invention;

[0060] Figure 2 is a structural schematic diagram of a splicing portion according to an embodiment of the present invention;

[0061] Figure 3 yes Figure 2 A schematic structural diagram of a stator core formed by splicing the splicing parts shown;

[0062] Figure 4 is a schematic structural diagram of two spliced ​​parts of a stator core according to an embodiment of the present invention;

[0063] Figure 5 yes Figure 4 A schematic diagram of the structure of the stator core formed by splicing the structures shown;

[0064] Figure 6 is a schematic structural diagram of two spliced ​​parts of a stator core according to an embodiment of the present invention;

[0065] Figure 7 yes Figure 6 A schematic diagram of the structure of the stator core formed by splicing the structures shown;

[0066] Figure 8 is a structural schematic diagram of a splicing portion of a stator core according to an embodiment of the present invention;

[0067] Fig. 9 yes Figure 8 A schematic diagram of the structure of the stator core formed by splicing the structures shown;

[0068] Fig.10 is a structural schematic diagram of a splicing portion of a stator core according to an embodiment of the present invention;

[0069] Fig.11 yes Fig.10 A schematic diagram of the structure of the stator core formed by splicing the structures shown;

[0070] Fig.12 is a schematic cross-sectional structural diagram of a motor according to an embodiment of the present invention;

[0071] Fig.13 is a schematic cross-sectional view of a stator assembly after decomposition according to an embodiment of the present invention;

[0072] Fig.14 yes Fig.13 A schematic cross-sectional view of a motor formed by assembling a stator assembly and a rotor assembly;

[0073] Fig.15 is a schematic cross-sectional view of a stator assembly after decomposition according to an embodiment of the present invention;

[0074] Fig.16 It is a schematic block diagram of an electromechanical device according to an embodiment of the present invention.

[0075] in, Figures 1 to 16 The corresponding relationship between the reference numerals and component names in the figure is:

[0076] 1 motor;

[0077] 10 stator assembly, 14 rotor assembly;

[0078] 20 stator core, 11 splicing portion, 12 insulating member, 13 winding coil;

[0079] 111 stator yoke, 1111 welding position, 1112 splicing boss, 1113 convex part, 1114 concave part, 1115 stator yoke section, 1116 yoke section, 112 stator tooth, 1121 stator tooth body, 1122 stator tooth shoe, 1123 tooth shoe section;

[0080] 2 Mechanical and electrical equipment, 202 Equipment body. DETAILED DESCRIPTION

[0081] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0082] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0083] Refer to the following Figures 1 to 16 A stator assembly, a motor and an electromechanical device according to some embodiments of the present invention are described.

[0084] The stator assembly 10 provided by the embodiment of the first aspect of the present invention includes: a stator core 20 , a winding coil 13 and an insulating member 12 .

[0085] Specifically, the stator core 20 includes a stator yoke 111 and a stator tooth 112. The stator yoke 111 has a notch, and the stator yoke 111 includes at least one stator yoke segment 1115, such as Figure 2 , Figure 4 , Figure 6 The stator tooth portion 112 includes at least one stator tooth shoe 1122 and at least two stator tooth bodies 1121. Figure 1 , Figure 3 , Figure 5 , Figure 7 , Fig. 9 and Fig.11 At least two stator tooth bodies 1121 are arranged along the circumferential direction of the stator core 20 , and two ends of any stator tooth body 1121 are connected to the stator yoke section 1115 and the stator tooth shoe 1122 respectively.

[0086] Any two adjacent stator tooth bodies 1121 are connected via stator tooth shoes 1122 or stator yoke segments 1115. Figure 1 , Figure 3 , Figure 5 , Figure 7 , Fig. 9 and Fig.11As shown, the stator tooth shoes 1122 of the stator tooth portion 112 and the stator yoke segments 1115 of the stator yoke portion 111 are arranged alternately along the circumferential direction of the stator core 20 .

[0087] The winding coil 13 is wound on the stator tooth body 1121, and the winding coils 13 on the two stator tooth bodies 1121 connected by the stator yoke segment 1115 are wound in opposite directions. Figures 12 to 15 shown.

[0088] The insulating member 12 is connected to the stator core 20 and is located between the winding coil 13 and the stator core 20 , and is used to isolate the winding coil 13 from the stator core 20 .

[0089] The stator assembly 10 provided in the embodiment of the first aspect of the present invention connects a plurality of stator tooth bodies 1121 together by using stator tooth shoes 1122 and stator yoke segments 1115 staggered along the circumference of the stator core 20, so that the stator yoke 111 and the stator tooth 112 are connected as a whole.

[0090] In other words, any two adjacent stator tooth bodies 1121 are connected as a whole only through the stator tooth shoe 1122 or the stator yoke segment 1115. Then, for any two adjacent stator tooth bodies 1121 connected through the stator tooth shoe 1122, the ends of the two stator tooth bodies 1121 facing the stator yoke portion 111 are not connected through the stator yoke segment 1115, so the stator yoke portion 111 is disconnected between the two stator tooth bodies 1121 and has a gap.

[0091] Therefore, the stator yoke 111 in the present application is a non-annular structure. Compared with the annular stator yoke 111 in the prior art, the circumferential size of the stator yoke 111 is reduced, thereby reducing the weight of the stator core 20, and is also beneficial to reducing the size of the insulating part 12 connected to the stator core 20, which is beneficial to the lightweight of the motor 1, and also reduces the production cost of the product.

[0092] In addition, the notch portion of the stator yoke 111 facilitates airflow to pass through, which is beneficial to heat dissipation inside the motor 1 , thereby facilitating improved reliability of the motor 1 .

[0093] In addition, the winding coil 13 is wound on the stator tooth body 1121, and the winding coils 13 on the two stator tooth bodies 1121 connected by the same stator yoke segment 1115 are wound in opposite directions. Then, one stator yoke segment 1115 is equivalent to being connected to two winding coils 13, and one stator tooth shoe 1122 is also equivalent to being connected to two winding coils 13. Compared with the scheme in which one stator yoke segment 1115 or one stator tooth shoe 1122 is connected to one winding coil 13, this scheme increases the number of winding coils 13, thereby increasing the back electromotive force of the motor 1 and reducing the input current, which can reduce the heat generated by the motor 1 and provide strong protection for the operation of electrical components such as chips inside the motor 1.

[0094] In other embodiments of the present invention, the winding coil 13 is wound on the stator yoke 111, and an air duct for air flow is formed between two adjacent stator tooth bodies 1121, which is beneficial to reducing the heat dissipation of the motor 1 and further improving the reliability of electrical components such as chips in the motor 1.

[0095] Among them, the insulating part 12 is usually a frame structure, that is, an insulating frame, which can be connected to the stator core 20 by injection molding; the insulating frame can also be processed separately, buckled on the stator core 20, or inserted and matched with the stator core 20.

[0096] Some embodiments are described below with reference to the accompanying drawings.

[0097] Embodiment 1

[0098] The stator core 20 is an integrated structure. Figure 1 The stator core 20 is formed by laminating a plurality of punching sheets.

[0099] The stator core 20 is an integrated structure, which is directly formed by stacking a plurality of punching sheets. It is only necessary to select suitable punching sheets according to the shape of the stator core 20, and then stack and hold the plurality of punching sheets together by welding or gluing to obtain the stator core 20. The process is simple and easy to form.

[0100] Furthermore, the stator core 20 is an integrated structure formed by welding. The side wall of the stator yoke section 1115 is provided with at least one protrusion or recess, and the welding position 1111 of the stator core 20 is provided at the protrusion or recess, such as Figure 1 shown.

[0101] At least one protrusion or recess is provided on the side wall of the stator yoke segment 1115, and the welding position 1111 is provided at the protrusion (such as Figure 1 If the protrusion or recessed portion is located at a protrusion or recessed portion, welding can be performed directly along the protrusion or recessed portion, so that multiple punching sheets can be welded together. The resulting weld is straighter and more beautiful, and the influence of the weld on the magnetic circuit can be minimized.

[0102] Embodiment 2

[0103] The stator core 20 includes at least two splicing parts 11, such as Figures 2 to 11 At least two splicing parts 11 are spliced ​​together to form the stator core 20. Each splicing part 11 is formed by laminating a plurality of punching sheets.

[0104] The stator core 20 is split into at least two splicing parts 11, and each splicing part 11 is formed by stacking multiple punching sheets. The punching sheet size of a single splicing part 11 is small, which is beneficial to reduce the amount of waste generated by processing the punching sheets, thereby improving the utilization rate of raw materials and reducing production costs.

[0105] At the same time, this solution also facilitates the selection of winding first and then splicing or splicing first and then winding according to needs, which is conducive to simplifying the winding process and improving assembly efficiency.

[0106] Furthermore, for a single splicing portion 11, a protruding portion or a recessed portion may also be provided, and the welding position 1111 is provided at the protruding portion or the recessed portion, such as Figure 2 , Figure 4 , Figure 6 , Figure 8 and Fig.10 As shown, a plurality of punching sheets are held together by welding to form a spliced ​​portion 11 .

[0107] Specifically, the splicing position of at least two splicing parts 11 is recorded as the splicing position of the stator core 20. The stator tooth body 1121 and the stator yoke segment 1115 are constructed as a split structure, such as Figures 4 to 7 The joint includes the junction of the stator tooth body 1121 and the stator yoke segment 1115 .

[0108] The joint of the stator core 20 is also the division of the stator core 20, that is, the stator core 20 is disconnected along the joint, so that the stator core 20 forms at least two joints 11. In other words, the stator core 20 is divided and disconnected along at least a part of the junction between the stator tooth body 1121 and the stator yoke segment 1115, the stator yoke segment 1115, and the stator tooth shoe 1122 to form a split structure.

[0109] The stator tooth body 1121 and the stator yoke segment 1115 are constructed into a split structure, formed separately, and then spliced ​​together, so that the intersection of the stator tooth body 1121 and the stator yoke segment 1115 forms at least a part of the splicing. This solution facilitates the selection of first winding the tooth part according to needs, and then splicing the stator yoke segment 1115 and the stator tooth body 1121 after the winding operation, which is conducive to simplifying the winding process and improving assembly efficiency.

[0110] At the same time, the structure of a single stator yoke segment 1115 is relatively regular, and less waste is generated during the punching and forming of a single stator yoke segment 1115, which is beneficial to further reduce the amount of waste raw materials and further improve the utilization rate of raw materials.

[0111] Embodiment 3

[0112] The difference from the second embodiment is that the stator yoke segment 1115 is constructed into at least two yoke segments 1116 spliced ​​to each other along the circumferential direction of the stator core 20, such as Figures 8 to 11 The splice includes the intersection of at least two yoke sections 1116.

[0113] The stator yoke segment 1115 is constructed into at least two yoke segments 1116, and the multiple yoke segments 1116 are spliced ​​with each other along the circumference of the stator core 20, so that the two yoke segments 1116, the two stator tooth bodies 1121 and the stator tooth shoes 1122 can be designed as a whole according to needs. During assembly, it is only necessary to assemble the adjacent yoke segments 1116 along the circumferential direction, which is beneficial to reduce the number of splicing parts 11 and the splicing positions, thereby improving assembly efficiency.

[0114] Embodiment 4

[0115] The difference from the second embodiment is that the stator tooth shoe 1122 is constructed into at least two tooth shoe segments 1123 spliced ​​together along the circumferential direction of the stator core 20, such as Figure 2 and Figure 3 The joint includes the junction of at least two tooth shoe segments 1123.

[0116] The stator tooth shoe 1122 is constructed into at least two tooth shoe segments 1123, and the multiple tooth shoe segments 1123 are spliced ​​with each other along the circumference of the stator core 20, so that the two tooth shoe segments 1123, the two stator tooth bodies 1121 and the stator yoke segment 1115 can be designed as a whole according to needs. During assembly, it is only necessary to assemble the adjacent tooth shoe segments 1123 along the circumferential direction, which is beneficial to reduce the number of splicing parts 11, reduce the splicing positions, and thus improve the assembly efficiency.

[0117] In the above-mentioned embodiments 2 to 4, further, one of the two adjacent splicing parts 11 is provided with a convex part 1113, and the other is provided with a concave part 1114 adapted to the convex part 1113, such as Figures 2 to 11 As shown, the convex portion 1113 and the concave portion 1114 cooperate with each other to splice and connect two adjacent splicing portions 11 .

[0118] The two adjacent joint parts 11 are assembled by the cooperation between the convex part 1113 and the concave part 1114 , which makes the assembly more convenient and helps to further improve the assembly efficiency.

[0119] Specifically, the shape of the convex portion 1113 can be, but is not limited to: a semicircular shape (such as Figures 4 to 11 As shown), triangle, swallowtail (as Figure 2 and Figure 3 shown) etc.

[0120] Furthermore, two circumferential ends of the splicing portion 11 are provided with splicing bosses 1112, such as Figures 8 to 11 As shown, the splicing boss 1112 protrudes from the splicing portion 11 along the radial direction of the stator core 20 , and the splicing boss 1112 is provided with a convex portion 1113 or a concave portion 1114 .

[0121] Splicing bosses 1112 are provided at both circumferential ends of the splicing portion 11, and the convex portion 1113 or the concave portion 1114 is provided on the splicing bosses 1112. During assembly, the splicing bosses 1112 of adjacent splicing portions 11 are aligned so that the convex portions 1113 are embedded in the concave portions 1114 one by one, thereby realizing circumferential assembly of multiple splicing portions 11, and the assembly is convenient and quick.

[0122] At the same time, since the splicing boss 1112 protrudes from the splicing part 11 in the radial direction of the stator core 20, it will not affect the circumferential structure of the splicing part 11, which is conducive to ensuring the integrity of the circumferential structure of the splicing part 11 and further reducing the impact on the magnetic circuit.

[0123] For example, for the above-mentioned solution of constructing the stator yoke segment 1115 into at least two yoke segments 1116, the two yoke segments 1116, the two stator tooth bodies 1121 and the stator tooth shoes 1122 can be designed as a whole. Figure 8 and Fig.10 As shown, splicing bosses 1112 are respectively provided at the ends of the two yoke sections 1116 that are away from each other, and a plurality of splicing parts 11 can be directly butted together via the splicing bosses 1112 , which is simple and quick.

[0124] In some embodiments of the present invention, further, the stator tooth shoe 1122 protrudes from the connected stator tooth body 1121 along the circumferential direction of the stator core 20 .

[0125] The stator tooth shoe 1122 protrudes from the connected stator tooth body 1121 along the circumferential direction of the stator core 20 , which is convenient for connecting adjacent stator tooth bodies 1121 and is also beneficial for increasing the area of ​​the stator tooth shoe 1122 , thereby improving the coordination effect between the stator core 20 and the rotor assembly 14 .

[0126] In some embodiments of the present invention, further, the stator yoke segment 1115 protrudes from the connected stator tooth body 1121 along the circumferential direction of the stator core 20 .

[0127] The stator yoke segment 1115 protrudes from the connected stator tooth body 1121 along the circumference of the stator core 20 , which is convenient for connecting adjacent stator tooth bodies 1121 and is also beneficial for increasing the circumferential length of the stator yoke portion 111 , thereby improving the strength and reliability of the stator yoke portion 111 .

[0128] In some embodiments of the present invention, further, the stator tooth body 1121 extends radially along the stator core 20 , the stator tooth shoe 1122 extends circumferentially along the stator core 20 , and the stator yoke segment 1115 is located radially outside or radially inside the stator tooth shoe 1122 .

[0129] The stator tooth body 1121 extends in the radial direction of the stator core 20 to form a radial motor 1. Of course, the stator tooth body 1121 can also extend in the axial direction of the stator core 20 to form an axial motor.

[0130] The stator tooth shoe 1122 extends along the circumferential direction of the stator core 20, which is convenient for connecting two adjacent stator tooth bodies 1121 and is also beneficial for reducing the axial size of the product.

[0131] The stator yoke section 1115 is located radially outside the stator tooth shoe 1122, and can cooperate with the rotor assembly 14 to form an inner rotor motor 1. Since the radius of the stator yoke 111 of the inner rotor motor 1 is relatively large, the solution of the present application is conducive to significantly reducing the circumferential size of the stator yoke 111, thereby significantly reducing the weight and cost of the motor 1.

[0132] Alternatively, the stator yoke segment 1115 may also be located radially inward of the stator tooth shoe 1122, so that the stator core 20 can cooperate with the rotor assembly 14 to form an outer rotor motor 1, and the weight and cost of the outer rotor motor can also be reduced.

[0133] In some embodiments of the present invention, the number of stator yoke segments 1115 is at least two, the number of stator tooth shoes 1122 is equal to the number of stator yoke segments 1115, and the stator yoke segments 1115 and the stator tooth shoes 1122 are arranged one by one in a staggered manner along the circumferential direction of the stator core 20, such as Figure 1 , Figure 3 , Figure 5 , Figure 7 , Fig. 9 and Fig.11 shown.

[0134] Multiple stator yoke segments 1115 and multiple stator tooth shoes 1122 are arranged one by one in an alternating manner along the circumference of the stator core 20 to form a regular structure. Compared with the annular yoke in the prior art, the stator yoke 111 is reduced by half, which is beneficial to significantly reduce the weight and cost of the motor 1.

[0135] In some embodiments of the present invention, the stator yoke segment 1115 is arc-shaped, such as Figure 4 , Figure 6 , Figure 8 and Fig.10 shown.

[0136] The stator yoke segment 1115 is arc-shaped and has a regular structure, which is easy to process and shape.

[0137] In other embodiments of the present invention, the stator yoke segment 1115 is in a straight line shape, such as Figure 2 shown.

[0138] The stator yoke segment 1115 is in a straight line shape with a regular structure, which is convenient for processing and forming. Compared with the arc-shaped solution, it is beneficial to reduce the radial size of the stator core 20 and thus reduce the radial size of the motor 1.

[0139] In some embodiments of the present invention, the stator tooth shoe 1122 is in an arc shape (eg Figure 1 shown) or a straight line (not shown).

[0140] The stator tooth shoe 1122 is in an arc shape or a straight line shape, has a regular structure, and is easy to process and shape. In addition, such a configuration allows the functions of the stator yoke section 1115 and the stator tooth shoe 1122 to be interchangeable, so that the stator core 20 can be used for both inner rotor motors (the inner side is the stator tooth shoe 1122, and the outer side is the stator yoke 111, such as Fig.12 , Fig.14 As shown in the figure), it can also be used for an outer rotor motor (the inner side is the stator yoke 111 and the outer side is the stator tooth shoe 1122), which expands the application range of the stator core 20.

[0141] In one embodiment of the present invention, the insulating member 12 is connected to the stator core 20 to form an integrated structure. Fig.12 As shown, the winding coil 13 is suitable for being wound on the stator tooth body 1121 after the insulating member 12 and the stator core 20 form an integrated structure.

[0142] The insulating member 12 is connected to the stator core 20 to form an integral structure and cannot be separated. During the production process, the insulating member 12 and the stator core 20 must be connected as a whole. Specifically, the insulating member 12 can be injection molded on the stator core 20 by injection molding, and then the winding operation is performed. This solution can effectively ensure the connection reliability between the insulating member 12 and the stator core 20, thereby improving the reliability of the motor 1.

[0143] In another embodiment of the present invention, the insulating member 12 and the stator core 20 are split structures, and the insulating member 12 is a split structure, and the insulating member 12 includes at least two insulating parts, and the at least two insulating parts correspond one-to-one to the multiple splicing parts 11 of the stator core 20, so that: the winding coil 13 is suitable for being wound on the insulating part by a winding tool, and the insulating part is connected to the corresponding splicing part 11 after the winding operation is completed.

[0144] In another embodiment of the present invention, the insulating member 12 and the stator core 20 are of a split structure, and the insulating member 12 is of a split structure, and the insulating member 12 includes at least two insulating parts, and the at least two insulating parts correspond to the multiple splicing parts 11 of the stator core 20 one by one, so that: the winding coil 13 is suitable for being wound on the splicing part 11 after the insulating part is connected to the corresponding splicing part 11, such as Fig.13 and Fig.14 shown.

[0145] In the above two embodiments, the insulating member 12 and the stator core 20 are split structures, which are formed separately and then assembled. In addition, the insulating member 12 is also a split structure, which is divided into at least two insulating parts, which correspond one to one with the multiple splicing parts 11 of the stator core 20. In this way, during the production process, the stator core 20 can be spliced ​​and assembled according to needs, which is conducive to reducing the difficulty of winding and thus improving assembly efficiency.

[0146] Compared with the solution of directly winding wire on the stator core 20 and then connecting the stator core 20 and the insulating member 12, this solution can prevent the stator core 20 from being bent and deformed due to excessive force when winding wire directly on the stator core 20, which is beneficial to improving the shape stability of the stator core 20.

[0147] Specifically, the insulating part can be put on the winding tool first, and the winding coil 13 can be wound along a preset direction. After the winding is completed, the insulating part is installed on the splicing part 11, and then multiple splicing parts 11 are spliced ​​together.

[0148] Alternatively, the insulating portion may be first mounted on the splicing portion 11 to form a component, and then the winding coil 13 may be wound on the component formed by the insulating portion and the splicing portion 11 along a preset direction. Fig.13 As shown, multiple splicing parts 11 are spliced ​​together, as shown in FIG. Fig.14 shown.

[0149] In one embodiment of the present invention, the winding coils 13 on the two stator tooth bodies 1121 connected via the stator yoke 111 are connected in series to form a set of windings.

[0150] The winding coils 13 on the two stator tooth bodies 1121 connected by the stator yoke 111 are close to each other. The two winding coils 13 are connected in series to form a group of windings. The connection method is relatively simple and easy to implement.

[0151] In another embodiment of the present invention, the winding coils 13 on the two stator tooth bodies 1121 connected by the stator tooth shoes 1122 are connected in parallel to form a set of windings.

[0152] The winding coils 13 on the two stator tooth bodies 1121 connected by the stator tooth shoes 1122 are close to each other. The two winding coils 13 are connected together in parallel to form a group of windings. The connection method is also relatively simple and easy to implement.

[0153] In another embodiment of the present invention, the number of stator tooth bodies 1121 is an even number, and the even number of stator tooth bodies 1121 are evenly distributed along the circumference of the stator core 20, and the winding coils 13 on two stator tooth bodies 1121 with a difference of 180° are connected in series or in parallel to form a group of windings.

[0154] The number of stator tooth bodies 1121 is an even number (recorded as 2n, where n is a positive integer), and the number of stator tooth shoes 1122 and stator yoke segments 1115 is half of the number of stator tooth bodies 1121 (i.e., n), and the stator tooth shoes 1122 and stator yoke segments 1115 are staggered along the circumference of the stator core 20. Moreover, the multiple stator tooth bodies 1121 are evenly distributed along the circumference of the stator core 20 to form a radial structure, and the even number of stator tooth bodies 1121 are opposite to each other in pairs (i.e., the two stator tooth bodies 1121 in each pair of stator tooth bodies 1121 are 180° apart along the circumference of the stator core 20), and the winding coils 13 on a pair of stator tooth bodies 1121 are connected in series or in parallel to form a group of windings, and the connection method is also relatively simple and easy to implement.

[0155] In any of the above embodiments, the winding coil 13 is a single-wire structure or a multi-wire structure. In the specific production process, it can be reasonably selected according to needs.

[0156] In any of the above embodiments, the connection mode of the winding coil 13 is star-shaped or triangle-shaped, but it is not limited to these two connection modes, and other connection modes are also possible.

[0157] The second aspect of the present invention provides a motor 1, such as Fig.12 , Fig.14 As shown, it includes: a stator assembly 10 and a rotor assembly 14 as in the first aspect embodiment, which is arranged concentrically with the stator assembly 10.

[0158] The motor 1 provided in the embodiment of the second aspect of the present invention includes the stator assembly 10 of the embodiment of the first aspect, and thus has all the beneficial effects of any of the above embodiments, which will not be described in detail here.

[0159] The rotor assembly 14 can be sleeved on the inner side of the stator assembly 10 to form an inner rotor motor 1 , or can be sleeved on the outer side of the stator assembly 10 to form an outer rotor motor 1 .

[0160] In some embodiments of the present invention, the number of stator yoke segments 1115 of the stator assembly 10 is three, the number of stator tooth boots 1122 of the stator assembly 10 is three, and the number of stator tooth bodies 1121 of the stator assembly 10 is six; the rotor assembly 14 includes a permanent magnet ring, which is an integrated structure or a split splicing structure, and is a two-pole permanent magnet ring or a four-pole permanent magnet ring.

[0161] The motor 1 of this solution has a simpler structure, is more commonly used, and has high reliability in use.

[0162] Of course, the number of stator yoke segments 1115, the number of stator tooth shoes 1122, the number of stator tooth bodies 1121 and the number of poles of the permanent magnet ring are not limited to the above scheme and can be adjusted as needed in the actual production process.

[0163] The third aspect of the present invention provides an electromechanical device 2, such as Fig.16 As shown, it includes: a device body 202 and a motor 1 as in the second aspect embodiment, which is arranged in the device body 202.

[0164] The electromechanical device 2 provided in the embodiment of the third aspect of the present invention includes the motor 1 of the embodiment of the second aspect, and thus has all the beneficial effects of the above embodiments, which will not be described in detail here.

[0165] In the above embodiments, the electromechanical device 2 is a household appliance, a medical device, a power generation and energy storage device, a chemical detection and material wind power device or an unmanned aerial vehicle.

[0166] Of course, the electromechanical device 2 is not limited to the above-mentioned device, and may also be other devices using the motor 1 .

[0167] Combine the following Figures 12 to 15 Some specific examples are introduced, and the assembly process of the motor 1 is described in detail.

[0168] A motor 1 includes a stator assembly 10 and a rotor assembly 14. The stator assembly 10 includes a stator core 20, an insulating frame and a winding coil 13. The stator core 20 includes three stator yoke segments 1115 evenly arranged along the circumferential direction, three stator tooth shoes 1122 evenly arranged along the circumferential direction and six stator tooth bodies 1121 evenly arranged along the circumferential direction, any two stator tooth bodies 1121 are connected as a whole only through the stator tooth shoes 1122 or the stator yoke segments 1115, and the three stator yoke segments 1115 and the three stator tooth shoes 1122 are staggered one by one along the circumferential direction. The winding coil 13 is wound on the stator core 20 to form three groups of windings.

[0169] Specific Example 1

[0170] The winding coil is wound on the stator teeth, and the winding coils on the two stator teeth connected by the stator yoke are wound in opposite directions. Fig.12 shown.

[0171] Furthermore, the stator core is an integrated structure, such as Fig.12 As shown, the stator core is an integral structure. After the insulating frame and the stator core are connected, the winding coils are respectively wound on the six stator teeth of the stator core. And the winding coils on the two stator teeth connected by the stator yoke are connected in series or in parallel to form a group of windings, and finally form three groups of windings A, B, and C. Among them, the winding group A includes the A1 winding coil and the A2 winding coil, the winding group B includes the B1 winding coil and the B2 winding coil, and the winding group C includes the C1 winding coil and the C2 winding coil.

[0172] Specific Example 2

[0173] The difference from Example 1 is that: Fig.13 and Fig.14 As shown in FIG. 1 , the stator core is a split structure, including three splicing parts, and the splicing parts are on three stator tooth shoes. The insulating part is also a split structure. The insulating frame is connected to the splicing part of each stator core, and the wires are wound separately (such as Fig.13 As shown) and then assembled into a whole (as shown Fig.14 As shown). In addition, the winding coils on the two stator teeth connected by the stator yoke are connected in series or in parallel to form a group of windings, and finally form three groups of windings A, B, and C. Among them, the winding group A includes the winding coil A1 and the winding coil A2, the winding group B includes the winding coil B1 and the winding coil B2, and the winding group C includes the winding coil C1 and the winding coil C2, and finally form the three winding groups A, B, and C.

[0174] Specific Example 3

[0175] The difference from the specific example 2 is that the splicing point is set at the junction of the stator yoke segment and the stator tooth body, such as Fig.15 shown.

[0176] Specific Example 4 (not shown in the figure)

[0177] The difference from the specific example 3 is that the winding coils on the two stator teeth that are 180° apart are connected in series or in parallel to form a group of windings, and finally form three groups of windings A, B, and C. Among them, the winding group A includes the winding coil A1 and the winding coil A2, the winding group B includes the winding coil B1 and the winding coil B2, and the winding group C includes the winding coil C1 and the winding coil C2, and finally form the three winding groups A, B, and C.

[0178] Specific Example 5 (not shown in the figure)

[0179] The difference from Specific Example 2 is that the stator core is a split structure, including three splicing parts, and the splicing part is at the junction of the stator yoke segment and the stator tooth body. The insulating part is also a split structure. An insulating frame is inserted into the winding tooling, and a plurality of winding coils are wound on the insulating frame along a preset direction. The plurality of insulating frames provided with the winding coils are respectively inserted into the stator yoke segment. After the windings are inserted into all the stator yoke segments, the plurality of splicing parts are connected to finally form three groups of windings A, B, and C. Among them, group A windings include A1 winding coils and A2 winding coils, group B windings include B1 winding coils and B2 winding coils, and group C windings include C1 winding coils and C2 winding coils, and finally form three groups of windings A, B, and C.

[0180] In the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance; the term "plurality" refers to two or more, unless otherwise clearly defined. The terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0181] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by terms such as “upper”, “lower”, “left”, “right”, “front” and “back” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation, and therefore, cannot be understood as a limitation on the present invention.

[0182] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0183] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A stator assembly, characterized in that: include: A stator core, the stator core comprising a stator yoke portion and a stator tooth portion; the stator yoke portion has a notch, and the stator yoke portion comprises at least one stator yoke segment; The stator tooth portion includes at least one stator tooth shoe and at least two stator tooth bodies arranged along the circumferential direction of the stator core; wherein, two ends of any stator tooth body are respectively connected to the stator yoke segment and the stator tooth shoe, any two adjacent stator tooth bodies are connected through the stator tooth shoe or the stator yoke segment, and the stator tooth shoe of the stator tooth portion and the stator yoke segment of the stator yoke portion are arranged alternately along the circumferential direction of the stator core; A winding coil is wound on the stator tooth body, and the winding coils on the two stator tooth bodies connected by the stator yoke segment are wound in opposite directions; An insulating member, connected to the stator core, located between the winding coil and the stator core, and used to isolate the winding coil from the stator core; The stator yoke is interrupted between two stator tooth bodies connected by stator tooth shoes.

2. The stator assembly according to claim 1, characterized in that: The stator tooth shoe protrudes from the connected stator tooth body along the circumferential direction of the stator core; and / or The stator yoke segment protrudes from the connected stator tooth body along the circumferential direction of the stator core.

3. The stator assembly according to claim 1 or 2, characterized in that: The stator tooth body extends in the radial direction of the stator core; and / or The stator tooth shoe extends along the circumference of the stator core; and / or The stator yoke segment is located radially outside or radially outward of the stator tooth shoe.

4. The stator assembly according to claim 1 or 2, characterized in that: The number of the stator yoke segments is at least two, the number of the stator tooth shoes is equal to the number of the stator yoke segments, and the stator yoke segments and the stator tooth shoes are arranged alternately one by one along the circumferential direction of the stator core.

5. The stator assembly according to claim 1 or 2, characterized in that: The stator yoke segment is in an arc shape or a straight line shape; and / or The stator tooth shoe is in an arc shape or a straight line shape.

6. The stator assembly according to claim 1 or 2, characterized in that: The stator core is an integrated structure, and is formed by stacking a plurality of punching sheets.

7. The stator assembly according to claim 6, characterized in that The stator core is an integrated structure formed by welding; The side wall of the stator yoke section is provided with at least one protrusion or recess, and the welding position of the stator core is provided at the protrusion or recess.

8. The stator assembly according to claim 6, characterized in that The insulating member is connected to the stator core to form an integrated structure, so that the winding coil is suitable for being wound on the stator tooth body after the insulating member and the stator core form the integrated structure.

9. The stator assembly according to claim 1 or 2, characterized in that: The stator core comprises at least two splicing parts, the at least two splicing parts are spliced ​​together to form the stator core, and each of the splicing parts is formed by stacking a plurality of punching sheets.

10. The stator assembly according to claim 9, characterized in that Recording the splicing position of the at least two splicing parts as the splicing position of the stator core; Wherein, the stator tooth body and the stator yoke segment are constructed as a split structure, and the splicing portion includes a junction between the stator tooth body and the stator yoke segment; and / or The stator yoke segment is constructed as at least two yoke segments spliced ​​to each other along the circumferential direction of the stator core, and the splicing portion includes a junction of the at least two yoke segments; and / or The stator tooth shoe is constructed of at least two tooth shoe segments spliced ​​together along the circumferential direction of the stator core, and the splicing portion includes a junction of the at least two tooth shoe segments.

11. The stator assembly according to claim 9, characterized in that One of the two adjacent splicing parts is provided with a convex part, and the other is provided with a concave part matched with the convex part, and the convex part and the concave part cooperate with each other to splice and connect the two adjacent splicing parts.

12. The stator assembly according to claim 11, characterized in that Splicing bosses are provided at both ends of the splicing portion in the circumferential direction. The splicing bosses protrude from the splicing portion in the radial direction of the stator core, and the splicing bosses are provided with the convex portion or the concave portion.

13. The stator assembly according to claim 9, characterized in that The insulating member and the stator core are of a split structure, and the insulating member is of a split structure, the insulating member includes at least two insulating parts, and the at least two insulating parts correspond to the multiple splicing parts of the stator core one by one, so that: The winding coil is suitable for being wound on the insulating portion by a winding tool, and the insulating portion is connected to the corresponding splicing portion after the winding operation is completed; or The winding coil is suitable for being wound on the splicing portion after the insulating portion is connected to the corresponding splicing portion.

14. The stator assembly according to claim 1 or 2, characterized in that: The winding coils on the two stator teeth connected by the stator yoke are connected in series to form a set of windings; or The winding coils on the two stator teeth connected by the stator tooth shoes are connected in parallel to form a set of windings; or The number of the stator tooth bodies is an even number, and the plurality of stator tooth bodies are evenly distributed along the circumference of the stator core, and the winding coils on two stator tooth bodies that are 180° apart are connected in series or in parallel to form a group of windings.

15. A motor, characterized in that: include: The stator assembly according to any one of claims 1 to 14; and The rotor assembly is arranged concentrically with the stator assembly.

16. The motor according to claim 15, characterized in that The number of stator yoke segments of the stator assembly is three, the number of stator tooth shoes of the stator assembly is three, and the number of stator tooth bodies of the stator assembly is six; The rotor assembly comprises a permanent magnet ring, which is an integrated structure or a split-type spliced ​​structure, and is a two-pole permanent magnet ring, a four-pole permanent magnet ring, or an eight-pole permanent magnet ring.

17. An electromechanical device, characterized in that: include: Equipment body; and The motor according to claim 15 or 16, is arranged in the device body.

18. The electromechanical device according to claim 17, characterized in that The electromechanical equipment is household appliances, medical equipment, power generation and energy storage equipment, chemical detection and material wind power equipment or unmanned aerial vehicles.

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