Stator assemblies, motors and electromechanical equipment

Abstract

This invention provides a stator assembly, a motor, and electromechanical equipment. The stator assembly includes: a stator core, which includes a stator yoke and a stator tooth section; the stator yoke includes at least one strip-shaped stator yoke segment; the stator tooth section includes at least one stator tooth shoe and at least two stator tooth bodies; the at least two stator tooth bodies are arranged circumferentially along the stator core; both ends of any stator tooth body are respectively connected to the stator yoke segment and the stator tooth shoe, and any two adjacent stator tooth bodies share a stator tooth shoe or a stator yoke segment, and the stator tooth shoe of the stator tooth section and the stator yoke segment of the stator yoke are arranged alternately along the circumferential direction of the stator core; a winding coil wound on the stator yoke; and an insulating member connected to the stator core and located between the winding coil and the stator core, used to isolate the winding coil from the stator core. This application reduces the weight and production cost of the stator core and is beneficial for motor heat dissipation.

Description

Technical Field

[0001] This invention relates to the field of motor technology, and more specifically, to a stator assembly, a motor, and electromechanical equipment. Background Technology

[0002] The existing motors typically have a stator core structure consisting of stator teeth on a complete annular stator yoke. The stator teeth include multiple stator teeth and stator shoe corresponding to each stator tooth. The entire stator core is quite heavy, which is not conducive to the lightweighting of the motor and results in high costs. Summary of the Invention

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

[0004] A second objective of the present invention is to provide an electric motor including the stator assembly described above.

[0005] A third objective of the present invention is to provide an electromechanical device including the aforementioned motor.

[0006] To achieve the above objectives, the first aspect of the present invention provides a stator assembly, comprising: a stator core, the stator core including a stator yoke and a stator tooth portion; an insulating member connected to the stator core and located between the winding coil and the stator core, for isolating the winding coil and the stator core; wherein the stator yoke includes at least one strip-shaped stator yoke segment; the stator tooth portion includes at least one stator tooth shoe and at least two stator tooth bodies arranged circumferentially along the stator core; both 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 share one stator tooth shoe or share one 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.

[0007] The stator assembly provided by the first aspect of the present invention connects multiple stator teeth together using stator tooth shoes and stator yoke segments arranged circumferentially along the stator core, making the stator yoke and stator teeth a whole. In other words, any two adjacent stator teeth are connected as a whole only by stator tooth shoes or stator yoke segments. For any two adjacent stator teeth connected by stator tooth shoes, the ends of these two stator teeth facing the stator yoke are not connected by the stator yoke segments. Therefore, the stator yoke is disconnected and has a gap between these two stator teeth. Thus, the stator yoke in this application is a non-annular structure. Compared with the annular stator yoke in the prior art, the circumferential dimension of the stator yoke is reduced, thereby reducing the weight of the stator core. It also helps to reduce the size of the insulating parts connected to the stator core, which is beneficial for the weight reduction of the motor and also reduces the production cost of the product. In addition, the gap in the stator yoke facilitates airflow and heat dissipation inside the motor, thereby improving the reliability of the motor.

[0008] Furthermore, the winding coil is wound on the stator yoke to form a ring winding, which creates an airflow channel between two adjacent stator teeth, which is beneficial for motor heat dissipation and thus improves the reliability of electrical components such as chips inside the motor.

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

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

[0011] The stator tooth shoe protrudes circumferentially from the stator core along the connected stator tooth body, which facilitates the connection of adjacent stator tooth bodies and also helps to increase the area of ​​the stator tooth shoe, thereby improving the fit between the stator core and the rotor assembly.

[0012] The stator yoke protrudes circumferentially from the connected stator teeth along the stator core, which facilitates the connection of adjacent stator teeth and also helps to increase 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, forming a radial motor.

[0015] The stator tooth shoe extends circumferentially along the stator core, which facilitates the connection of two adjacent stator teeth and also helps to reduce the axial dimension of the product.

[0016] The stator yoke section is located radially outside the stator tooth shoe and can mate with the rotor assembly to form an inner rotor motor. Since the stator yoke radius of the inner rotor motor is relatively large, the solution of this application significantly reduces the circumferential dimension of the stator yoke, thereby significantly reducing the motor weight and cost. Alternatively, the stator yoke section can also be located radially inside the stator tooth shoe, in which case the stator core can mate with the rotor assembly to form an outer rotor motor, also reducing the weight and cost of the outer rotor motor.

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

[0018] Multiple stator yoke segments and multiple stator toothed shoes are arranged alternately 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 helps to significantly reduce the weight and cost of the motor.

[0019] In any of the above technical solutions, the stator yoke segment is arc-shaped or straight-shaped; and / or the stator tooth shoe is arc-shaped or straight-shaped.

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

[0021] The stator yoke section is straight, with a regular structure, which is easy to process and shape. Compared with the arc-shaped design, it is beneficial to reduce the radial dimension of the stator core, thereby reducing the radial dimension of the motor.

[0022] The stator teeth are curved or straight, with a regular structure that facilitates machining and forming. Furthermore, this design allows the stator yoke and stator teeth to function interchangeably, enabling the stator core to be used in both internal rotor motors (with the stator teeth on the inside and the stator yoke on the outside) and external rotor motors (with the stator yoke on the inside and the stator teeth on the outside), thus expanding the application range of the stator core.

[0023] In some technical solutions of the present invention, the stator core is an integral structure, and the stator core is formed by stacking multiple laminations.

[0024] The stator core is an integral structure, directly formed by stacking multiple laminations. Therefore, it is only necessary to select the appropriate laminations according to the shape of the stator core, and then use welding or gluing to stack and hold the multiple laminations together to obtain the stator core. The process is simple and easy to form.

[0025] In the above technical solution, the stator core is a welded integral structure; 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 located at the protrusion or recess.

[0026] At least one protrusion or recess is provided on the side wall of the stator yoke section. The welding position is set at the protrusion or recess. During welding, welding can be carried out directly along the protrusion or recess, and multiple laminations can be welded together. The resulting weld is straighter and more aesthetically pleasing, and the influence of the weld on the magnetic circuit can be minimized.

[0027] In the above technical solution, the insulating component is connected to the stator core to form an integral structure, so that the winding coil is adapted to be wound on the stator yoke after the insulating component and the stator core form the integral structure.

[0028] The insulating component is integrated with the stator core to form a single, inseparable structure. During production, the insulating component and stator core must first be connected as a single unit. Specifically, this can be achieved by injection molding the insulating component onto the stator core, followed by winding. This method effectively ensures the reliability of the connection between the insulating component and the stator core, thereby improving the reliability of the motor.

[0029] In other technical solutions of the present invention, the stator core includes at least two splicing parts, which are spliced ​​together to form the stator core, and each splicing part is formed by stacking multiple laminations.

[0030] By dividing the stator core into at least two splicing sections, each spliced ​​section is formed by stacking multiple laminations. This results in smaller lamination sizes for each splice, reducing waste from lamination processing and improving raw material utilization, thereby lowering production costs. Furthermore, this design allows for flexible selection of winding before or after splicing, simplifying the winding process and improving assembly efficiency. Additionally, each splice section can be designed with protrusions or recesses, with welding points located at these points to hold multiple laminations together and form the splice.

[0031] In the above technical solution, the splicing position of the at least two splicing parts is denoted 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 as 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 as 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 joints of the stator core are also the divisions of the stator core, that is: the stator core is broken along the joints, so that the stator core forms at least two joints. In other words, the stator core is divided along at least a portion of the junction of the stator tooth body and the stator yoke, the stator yoke, and the stator tooth shoe, forming a split structure.

[0033] By constructing the stator tooth body and stator yoke segment as separate structures, molding them individually, and then splicing them together, the junction between the stator tooth body and the stator yoke segment forms at least part of the splicing joint. For products with yoke winding, this solution allows for selecting to wind the yoke first, and then splicing the completed stator yoke segment with the stator tooth body, simplifying the winding process and improving assembly efficiency. Simultaneously, the structure of a single stator yoke segment is relatively regular, and less waste is generated during the stamping and forming of a single stator yoke segment, further reducing raw material waste and improving raw material utilization.

[0034] The stator yoke segment is constructed into at least two yoke segments, and multiple yoke segments are spliced ​​together along the circumference of the stator core. This makes it easy to design two yoke segments, two stator teeth and stator tooth shoes as a whole as needed. During assembly, only adjacent yoke segments need to be assembled along the circumference, which helps to reduce the number of splicing parts and splicing positions, thereby improving assembly efficiency.

[0035] The stator tooth shoe is constructed into at least two tooth shoe segments, and multiple tooth shoe segments are spliced ​​together along the circumference of the stator core. This makes it easy to design two tooth shoe segments, two stator tooth bodies, and stator yoke segments as a whole as needed. During assembly, only adjacent tooth shoe segments need to be assembled along the circumference, which helps to reduce the number of splicing parts and splicing positions, thereby improving assembly efficiency.

[0036] In the above technical solution, one of the two adjacent splicing parts is provided with a protrusion, and the other is provided with a concave part that matches the protrusion. The protrusion and the concave part are in a convex-concave fit to connect the two adjacent splicing parts.

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

[0038] In the above technical solution, splicing bosses are provided at both ends of the splicing part in the circumferential direction. The splicing bosses protrude from the splicing part in the radial direction along the stator core. The splicing bosses are provided with the protrusion or the recess.

[0039] By setting splicing bosses at both ends of the splicing section and placing the protrusions or recesses on the splicing bosses, the splicing bosses of adjacent splicing sections can be aligned during assembly, allowing the protrusions to be inserted into the recesses one by one, thus achieving circumferential assembly of multiple splicing sections. This assembly method is convenient and quick. Furthermore, since the splicing bosses protrude radially from the splicing section along the stator core, they do not affect the circumferential structure of the splicing section, which helps to ensure the integrity of the circumferential structure of the splicing section and thus reduces the impact on the magnetic circuit.

[0040] In the above technical solution, the insulating component and the stator core are separate structures, and the insulating component includes at least two insulating parts, which correspond one-to-one with multiple splicing parts of the stator core, so that: the winding coil is adapted to be wound on the insulating part by a winding fixture, and the insulating part is connected to the corresponding splicing part after the winding operation is completed; or the winding coil is adapted to be wound on the splicing part after the insulating part is connected to the corresponding splicing part.

[0041] The insulation component and stator core are separate structures, molded separately and then assembled. Furthermore, the insulation component is also a separate structure, divided into at least two insulating parts, each corresponding to one of the multiple splicing parts of the stator core. This allows for pre-winding and subsequent assembly of the stator core during production, reducing winding difficulty and improving assembly efficiency. Compared to directly winding the stator core and then connecting it to the insulation component, this method prevents excessive stress on the stator core during direct winding, thus improving the stability of the stator core's shape. Specifically, the insulation component can be first fitted onto a winding fixture, and the winding coil can be wound along a predetermined direction. After winding, the insulation component is installed on the splicing part, and then the multiple splicing parts are joined together. Alternatively, the insulating part can be installed on the splicing part to form a component. Then, a winding coil can be wound on the component formed by the insulating part and the splicing part in a preset direction. After the winding is completed, multiple splicing parts can be spliced ​​together.

[0042] In any of the above technical solutions, the winding coil can be a single-wire structure or a multi-wire structure. In specific production processes, the appropriate choice can be made according to needs.

[0043] In any of the above technical solutions, the winding coils are connected in a star or delta configuration. However, this is not limited to these two configurations; other connection methods are also possible.

[0044] The second aspect of the present invention provides an electric motor, comprising: a stator assembly as described in the first aspect; and a rotor assembly arranged concentrically with the stator assembly.

[0045] The motor provided by the second aspect of the present invention, since it includes the stator assembly described in the first aspect, has all the beneficial effects of any of the above-mentioned technical solutions, which will not be repeated here.

[0046] The rotor assembly can be fitted inside the stator assembly to form an inner rotor motor, or it can be fitted outside the stator assembly to form an outer rotor motor.

[0047] In the above technical solution, the stator assembly has three stator yoke segments, three stator tooth shoes, and six stator teeth; the rotor assembly includes a permanent magnet ring, which is either an integral structure or a split splicing structure, and is a two-pole permanent magnet ring, a four-pole permanent magnet ring, or an eight-pole permanent magnet ring.

[0048] The motor in this design has a relatively simple structure, is commonly used, and has high reliability.

[0049] The third aspect of the present invention provides an electromechanical device, comprising: a device body; and a motor as described in the second aspect, disposed in the device body.

[0050] The electromechanical equipment provided by the third aspect of the present invention includes the motor described in the second aspect of the present invention, and therefore has all the beneficial effects of the above-mentioned technical solutions, which will not be repeated here.

[0051] In the above technical solution, the electromechanical equipment is a household appliance, medical device, power generation and energy storage equipment, chemical detection and material wind power equipment, or unmanned aerial vehicle.

[0052] Of course, electromechanical equipment is not limited to the above-mentioned equipment; it can also be other equipment that uses motors.

[0053] Additional aspects and advantages of the invention will become apparent in the following description or may be learned by practice of the invention. Attached Figure Description

[0054] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0055] Figure 1 This is a schematic diagram of the stator core structure according to one embodiment of the present invention;

[0056] Figure 2 This is a schematic diagram of the splicing part according to an embodiment of the present invention;

[0057] Figure 3 yes Figure 2 A schematic diagram of the stator core formed by splicing the splicing parts shown;

[0058] Figure 4 This is a schematic diagram of the structure of two splicing parts of the stator core according to an embodiment of the present invention;

[0059] Figure 5 yes Figure 4 A schematic diagram of the stator core formed by splicing the structures shown;

[0060] Figure 6 This is a schematic diagram of the structure of two splicing parts of the stator core according to an embodiment of the present invention;

[0061] Figure 7 yes Figure 6 A schematic diagram of the stator core formed by splicing the structures shown;

[0062] Figure 8 This is a schematic diagram of the structure of the splicing part of the stator core according to an embodiment of the present invention;

[0063] Figure 9 yes Figure 8 A schematic diagram of the stator core formed by splicing the structures shown;

[0064] Figure 10 This is a schematic diagram of the structure of the splicing part of the stator core according to an embodiment of the present invention;

[0065] Figure 11 yes Figure 10 A schematic diagram of the stator core formed by splicing the structures shown;

[0066] Figure 12 This is a schematic diagram of the structure of a motor according to an embodiment of the present invention;

[0067] Figure 13 This is a schematic diagram of the disassembled structure of the stator assembly according to an embodiment of the present invention;

[0068] Figure 14 yes Figure 13 The diagram shows the structure of the motor formed by assembling the stator assembly and the rotor assembly.

[0069] Figure 15 This is a schematic diagram of the disassembled structure of the stator assembly according to an embodiment of the present invention;

[0070] Figure 16 yes Figure 15 The diagram shows the structure of the motor formed by assembling the stator assembly and the rotor assembly.

[0071] Figure 17 This is a schematic block diagram of an electromechanical device according to an embodiment of the present invention.

[0072] in, Figures 1 to 17 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0073] 1. Motor;

[0074] 10 stator assemblies, 14 rotor assemblies;

[0075] 20 Stator core, 11 Splicing section, 12 Insulation component, 13 Winding coil;

[0076] 111 Stator yoke, 1111 Welding position, 1112 Splicing boss, 1113 Protrusion, 1114 Recess, 1115 Stator yoke section, 1116 Yoke section, 112 Stator tooth, 1121 Stator tooth body, 1122 Stator tooth shoe, 1123 Tooth shoe section.

[0077] 2. Mechanical and electrical equipment, 202. Equipment body. Detailed Implementation

[0078] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0079] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0080] The following reference Figures 1 to 17 Describes stator assemblies, motors, and electromechanical devices according to some embodiments of the present invention.

[0081] The stator assembly 10 provided in the first aspect of the present invention includes: a stator core 20, a winding coil 13, and an insulator 12.

[0082] Specifically, the stator core 20 includes a stator yoke 111 and a stator tooth portion 112. The stator yoke 111 includes at least one strip-shaped stator yoke segment 1115, such as... Figure 2 , Figure 4 , Figure 6 As shown. The stator tooth portion 112 includes at least one stator tooth shoe 1122 and at least two stator tooth bodies 1121, as... Figure 1 , Figure 3 , Figure 5 , Figure 7 , Figure 9 and Figure 11As shown. At least two stator teeth 1121 are arranged circumferentially along the stator core 20, and the two ends of any stator tooth 1121 are connected to the stator yoke section 1115 and the stator tooth shoe 1122, respectively.

[0083] Wherein, any two adjacent stator tooth bodies 1121 share a stator tooth shoe 1122 or a stator yoke segment 1115 (or, any two adjacent stator tooth bodies 1121 are connected through a stator tooth shoe 1122 or a stator yoke segment 1115), such as Figure 1 , Figure 3 , Figure 5 , Figure 7 , Figure 9 and Figure 11 As shown, the stator tooth shoe 1122 of the stator tooth portion 112 and the stator yoke segment 1115 of the stator yoke portion 111 are arranged alternately along the circumference of the stator core 20.

[0084] The winding coil 13 is wound on the stator yoke 111, such as Figures 12 to 16 As shown.

[0085] The insulating component 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.

[0086] The stator assembly 10 provided in the first aspect of the present invention connects multiple stator teeth 1121 together by stator tooth shoes 1122 and stator yoke segments 1115 arranged circumferentially along the stator core 20, so that the stator yoke 111 and stator tooth segments 112 are connected as a whole.

[0087] In other words, any two adjacent stator teeth 1121 are connected as a whole only through stator tooth shoe 1122 or stator yoke segment 1115. Therefore, for any two adjacent stator teeth 1121 connected by stator tooth shoe 1122, the ends of these two stator teeth 1121 facing the stator yoke 111 are not connected by the stator yoke segment 1115. Thus, the stator yoke 111 is disconnected and has a gap between these two stator teeth 1121.

[0088] Therefore, the stator yoke 111 in this application is a non-ring structure. Compared with the ring stator yoke 111 in the prior art, the circumferential dimension of the stator yoke 111 is reduced, thereby reducing the weight of the stator core 20. It also helps to reduce the size of the insulation component 12 connected to the stator core 20, which is beneficial to the lightweighting of the motor 1 and also reduces the production cost of the product.

[0089] In addition, the notch in the stator yoke 111 facilitates airflow and promotes heat dissipation inside the motor 1, thereby improving the reliability of the motor 1.

[0090] Furthermore, the winding coil 13 is wound on the stator yoke 111, such as... Figure 12 , Figure 14 and Figure 16 As shown, an air duct is formed between two adjacent stator teeth 1121 for airflow, which helps to reduce heat dissipation of motor 1 and thus improve the reliability of electrical components such as chips inside motor 1.

[0091] In other embodiments of the present invention, the winding coil 13 may also be wound on the stator tooth body 1121, so as to facilitate the selection of the winding position and quantity as needed.

[0092] Among them, the insulating component 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 and fastened to the stator core 20, or inserted into the stator core 20.

[0093] Some embodiments are described below with reference to the accompanying drawings.

[0094] Example 1

[0095] The stator core 20 is a one-piece structure, such as Figure 1 As shown. The stator core 20 is formed by stacking multiple laminations.

[0096] The stator core 20 is an integral structure, directly formed by stacking multiple laminations. Therefore, it is only necessary to select suitable laminations according to the shape of the stator core 20, and then stack and hold the multiple laminations together by welding or gluing to obtain the stator core 20. The process is simple and easy to form.

[0097] Furthermore, the stator core 20 is a welded, integral structure. The sidewall of the stator yoke section 1115 has at least one protrusion or recess, and the welding position 1111 of the stator core 20 is located at the protrusion or recess, such as... Figure 1 As shown.

[0098] At least one protrusion or recess is provided on the side wall of the stator yoke section 1115, and the welding position 1111 is located at the protrusion (e.g., Figure 1 If the protrusion or depression is located at the point shown, welding can be performed directly along the protrusion or depression to weld multiple pieces together. This results in a straighter and more aesthetically pleasing weld, which also minimizes the impact of the weld on the magnetic circuit.

[0099] Example 2

[0100] The stator core 20 includes at least two splicing parts 11, such as Figures 2 to 11 As shown. At least two splicing parts 11 are spliced ​​together to form a stator core 20. Each splicing part 11 is formed by stacking multiple laminations.

[0101] The stator core 20 is divided into at least two splicing parts 11, each splicing part 11 is formed by stacking multiple laminations. The lamination size of a single splicing part 11 is smaller, which helps to reduce the amount of waste generated during lamination processing, thereby improving the utilization rate of raw materials and reducing production costs.

[0102] At the same time, this solution also allows for the selection of winding first and then splicing or splicing first and then winding, which helps to simplify the winding process and improve assembly efficiency.

[0103] Furthermore, for a single splicing part 11, a protrusion or a recess can also be provided, and the welding position 1111 is located at the protrusion or recess, such as... Figure 2 , Figure 4 , Figure 6 , Figure 8 and Figure 10 As shown, multiple laminations are held together by welding to form a splice 11.

[0104] Specifically, the splicing positions of at least two splicing parts 11 are designated as the splicing points of the stator core 20. The stator tooth body 1121 and the stator yoke section 1115 are constructed as a split structure, such as... Figures 4 to 7 As shown. The splicing point includes the junction of the stator tooth body 1121 and the stator yoke section 1115.

[0105] The splicing point of the stator core 20 is also the dividing point of the stator core 20, that is: the stator core 20 is broken along the splicing point, so that the stator core 20 forms at least two splicing parts 11. In other words, the stator core 20 is divided along at least a portion of the junction of the stator tooth body 1121 and the stator yoke section 1115, the stator yoke section 1115, and the stator tooth shoe 1122, forming a split structure.

[0106] The stator tooth body 1121 and the stator yoke segment 1115 are constructed as separate structures, molded individually, and then spliced ​​together. The junction between the stator tooth body 1121 and the stator yoke segment 1115 forms at least a portion of the splicing joint. For products with yoke winding, this design facilitates selecting the yoke winding first (e.g., ...) as needed. Figure 15 and Figure 16 (As shown), the stator yoke section 1115, which has completed the winding operation, is then spliced ​​together with the stator tooth body 1121, which helps to simplify the winding process and improve assembly efficiency.

[0107] Meanwhile, the structure of a single stator yoke segment 1115 is relatively regular, and less waste is generated during the stamping and forming of a single stator yoke segment 1115, which helps to further reduce the amount of waste from raw materials and further improve the utilization rate of raw materials.

[0108] Example 3

[0109] The difference from Embodiment 2 is that the stator yoke segment 1115 is constructed as at least two yoke segments 1116 spliced ​​together circumferentially along the stator core 20, such as... Figures 8 to 11 As shown. The splice includes the junction of at least two yoke segments 1116.

[0110] The stator yoke segment 1115 is constructed into at least two yoke segments 1116. Multiple yoke segments 1116 are spliced ​​together along the circumference of the stator core 20. This makes it easy to design the two yoke segments 1116, the two stator tooth bodies 1121, and the stator tooth shoe 1122 into a whole as needed. During assembly, only adjacent yoke segments 1116 need to be assembled along the circumference, which helps to reduce the number of splicing parts 11 and the number of splicing positions, thereby improving assembly efficiency.

[0111] Example 4

[0112] The difference from Embodiment 2 is that the stator toothed shoe 1122 is constructed as at least two toothed shoe segments 1123 spliced ​​together circumferentially along the stator core 20, such as... Figure 2 and Figure 3 As shown. The joint includes the junction of at least two toothed shoe segments 1123.

[0113] The stator tooth shoe 1122 is constructed as at least two tooth shoe segments 1123. Multiple tooth shoe segments 1123 are spliced ​​together along the circumference of the stator core 20. This makes it easy to design two tooth shoe segments 1123, two stator tooth bodies 1121 and stator yoke segments 1115 as a whole as needed. During assembly, only adjacent tooth shoe segments 1123 need to be assembled along the circumference, which helps to reduce the number of splicing parts 11 and the number of splicing positions, thereby improving assembly efficiency.

[0114] In embodiments two to four above, further, one of the two adjacent splicing portions 11 is provided with a protrusion 1113, and the other is provided with a recess 1114 adapted to the protrusion 1113, such as... Figures 2 to 11 As shown, the convex part 1113 and the concave part 1114 are engaged to connect two adjacent splicing parts 11.

[0115] The two adjacent splicing parts 11 are assembled by the cooperation of the protrusion 1113 and the concave part 1114, which makes the assembly more convenient and helps to further improve the assembly efficiency.

[0116] Specifically, the shape of the protrusion 1113 can be, but is not limited to, a semi-circle (e.g., ...). Figures 4 to 11 (as shown), triangle, swallowtail (as shown) Figure 2 and Figure 3 (as shown in the image) etc.

[0117] Furthermore, splicing bosses 1112 are provided at both circumferential ends of the splicing part 11, such as... Figures 8 to 11As shown, the splicing boss 1112 protrudes from the splicing part 11 along the radial direction of the stator core 20, and the splicing boss 1112 is provided with a protrusion 1113 or a recess 1114.

[0118] By setting splicing bosses 1112 at both ends of the splicing part 11 in the circumferential direction, and setting protrusions 1113 or recesses 1114 on the splicing bosses 1112, the splicing bosses 1112 of adjacent splicing parts 11 are aligned during assembly, so that the protrusions 1113 are inserted into the recesses 1114 one by one, and the circumferential assembly of multiple splicing parts 11 can be realized, making the assembly convenient and quick.

[0119] Meanwhile, since the splicing boss 1112 protrudes radially from the splicing part 11 along the stator core 20, it will not affect the circumferential structure of the splicing part 11, which helps to ensure the integrity of the circumferential structure of the splicing part 11 and thus reduces the impact on the magnetic circuit.

[0120] For example, regarding the aforementioned scheme of constructing the stator yoke segment 1115 as at least two yoke segments 1116, the two yoke segments 1116, the two stator tooth bodies 1121, and the stator tooth shoe 1122 can be designed as a single unit, such as... Figure 8 and Figure 10 As shown, splicing bosses 1112 are provided at the opposite ends of the two yoke sections 1116, and multiple splicing parts 11 can be directly connected through the splicing bosses 1112, which is simple and quick.

[0121] In some embodiments of the present invention, the stator tooth shoe 1122 further protrudes circumferentially from the connected stator tooth body 1121 along the stator core 20.

[0122] The stator tooth shoe 1122 protrudes circumferentially from the stator tooth body 1121 connected to the stator core 20, which facilitates the connection of adjacent stator tooth bodies 1121 and also helps to increase the area of ​​the stator tooth shoe 1122, thereby improving the fit between the stator core 20 and the rotor assembly 14.

[0123] In some embodiments of the present invention, the stator yoke segment 1115 further protrudes circumferentially from the connected stator tooth body 1121 along the stator core 20.

[0124] The stator yoke section 1115 protrudes circumferentially from the stator core 20 and is connected to the stator tooth body 1121, which facilitates the connection of adjacent stator tooth bodies 1121 and also helps to increase the circumferential length of the stator yoke 111, thereby improving the strength and reliability of the stator yoke 111.

[0125] In some embodiments of the present invention, 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.

[0126] The stator tooth body 1121 extends radially along the stator core 20 to form a radial motor 1. Of course, the stator tooth body 1121 can also extend axially along the stator core 20 to form an axial motor.

[0127] The stator tooth shoe 1122 extends circumferentially along the stator core 20, which facilitates the connection of two adjacent stator tooth bodies 1121 and also helps to reduce the axial dimension of the product.

[0128] 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 stator yoke section 111 of the inner rotor motor 1 has a large radius, the solution of this application is beneficial to significantly reduce the circumferential dimension of the stator yoke section 111, thereby significantly reducing the weight and cost of the motor 1.

[0129] Alternatively, the stator yoke 1115 can be located radially inside the stator tooth shoe 1122, so that the stator core 20 can cooperate with the rotor assembly 14 to form an external rotor motor 1, which can also reduce the weight and cost of the external rotor motor.

[0130] In some embodiments of the present invention, the number of stator yoke segments 1115 is at least two, and the number of stator toothed shoes 1122 is equal to the number of stator yoke segments 1115. The stator yoke segments 1115 and stator toothed shoes 1122 are arranged alternately along the circumference of the stator core 20, such as... Figure 1 , Figure 3 , Figure 5 , Figure 7 , Figure 9 and Figure 11 As shown.

[0131] Multiple stator yoke segments 1115 and multiple stator toothed shoes 1122 are arranged alternately 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.

[0132] In some embodiments of the present invention, the stator yoke segment 1115 is arc-shaped, such as... Figure 4 , Figure 6 , Figure 8 and Figure 10 As shown.

[0133] The stator yoke section 1115 is arc-shaped, with a regular structure, making it easy to process and shape.

[0134] In other embodiments of the invention, the stator yoke segment 1115 is straight, such as... Figure 2 As shown.

[0135] The stator yoke section 1115 is straight, with a regular structure, which is easy to process and form. Compared with the arc-shaped scheme, it is beneficial to reduce the radial dimension of the stator core 20, thereby reducing the radial dimension of the motor 1.

[0136] In some embodiments of the present invention, the stator tooth shoe 1122 is arc-shaped (e.g., ...). Figure 1 (as shown) or a straight line (not shown in the figure).

[0137] The stator toothed shoe 1122 is arc-shaped or straight-shaped, with a regular structure that facilitates machining and forming. Furthermore, this arrangement allows the stator yoke section 1115 and the stator toothed shoe 1122 to be interchangeable, thus enabling the stator core 20 to be used in both internal rotor motors (where the inner side is the stator toothed shoe 1122 and the outer side is the stator yoke 111, as shown in the image) and external rotor motors. Figure 12 , Figure 14 , Figure 16 As shown), it can also be used in external rotor motors (with the inner side being the stator yoke 111 and the outer side being the stator gear shoe 1122), thus expanding the application range of the stator core 20.

[0138] In one embodiment of the present invention (e.g.) Figure 12 As shown), the insulating component 12 is connected to the stator core 20 to form an integrated structure, as shown. Figure 12 As shown, the winding coil 13 is adapted to be wound on the stator yoke 111 after the insulator 12 and the stator core 20 form an integral structure.

[0139] The insulating component 12 is connected to the stator core 20 to form an integral structure that cannot be separated. During the production process, the insulating component 12 and the stator core 20 must first be connected as a whole. Specifically, the insulating component 12 can be injection molded onto the stator core 20, and then the winding operation is performed. This solution can effectively ensure the reliability of the connection between the insulating component 12 and the stator core 20, thereby improving the reliability of the motor 1 in use.

[0140] In another embodiment of the present invention, the insulating member 12 and the stator core 20 are separate structures, and the insulating member 12 is a separate structure. The insulating member 12 includes at least two insulating parts, and the at least two insulating parts correspond one-to-one with a plurality of splicing parts 11 of the stator core 20, so that the winding coil 13 is adapted to be wound on the insulating part by a winding fixture, and the insulating part is connected to the corresponding splicing part 11 after the winding operation is completed.

[0141] In another embodiment of the present invention, the insulating member 12 and the stator core 20 are separate structures, and the insulating member 12 includes at least two insulating portions, which correspond one-to-one with a plurality of splicing portions 11 of the stator core 20, so that the winding coil 13 is adapted to be wound on the splicing portion 11 after the insulating portion is connected to the corresponding splicing portion 11, such as... Figures 13 to 16As shown.

[0142] In the two embodiments described above, the insulating component 12 and the stator core 20 are separate structures, formed separately and then assembled. Furthermore, the insulating component 12 is also a separate structure, divided into at least two insulating parts, each corresponding to one of the multiple splicing parts 11 of the stator core 20. This allows for winding the stator core 20 before assembly as needed during production, reducing winding difficulty and improving assembly efficiency.

[0143] Compared to the method of directly winding wires on the stator core 20 and then connecting the stator core 20 to the insulation component 12, this method can prevent the stator core 20 from being subjected to excessive force and bending deformation during the direct winding operation, which is beneficial to improving the shape stability of the stator core 20.

[0144] Specifically, the insulating part can be placed on the winding fixture first, and the winding coil 13 can be wound in a preset direction. After the winding is completed, the insulating part can be installed on the splicing part 11, and then multiple splicing parts 11 can be spliced ​​together.

[0145] Alternatively, the insulating part can be installed on the splicing part 11 first to form an assembly, and then the winding coil 13 can be wound on the assembly formed by the insulating part and the splicing part 11 in a preset direction. After the winding is completed, as shown in the figure... Figure 13 and Figure 15 As shown, the multiple splicing parts 11 are then spliced ​​together, as follows: Figure 14 and Figure 16 As shown.

[0146] In any of the above embodiments, the winding coil 13 can be a single-wire structure or a multi-wire structure. The appropriate choice can be made according to needs during the actual production process.

[0147] In any of the above embodiments, the winding coil 13 is connected in a star or delta configuration. However, it is not limited to these two configurations and can also be other configurations.

[0148] A second aspect of the present invention provides a motor 1, such as Figure 12 , Figure 14 , Figure 16 This includes: a stator assembly 10 and a rotor assembly 14 as described in the first aspect embodiment, arranged concentrically with the stator assembly 10.

[0149] The motor 1 provided in the second aspect of the present invention includes the stator assembly 10 of the first aspect embodiment, and therefore has all the beneficial effects of any of the above embodiments, which will not be repeated here.

[0150] The rotor assembly 14 can be sleeved inside the stator assembly 10 to form an inner rotor motor 1, or it can be sleeved outside the stator assembly 10 to form an outer rotor motor 1.

[0151] In some embodiments of the present invention, the number of stator yoke segments 1115 of stator assembly 10 is three, the number of stator tooth shoes 1122 of stator assembly 10 is three, and the number of stator tooth bodies 1121 of stator assembly 10 is six; the rotor assembly 14 includes a permanent magnet ring, which is an integral 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.

[0152] The structure of motor 1 in this scheme is relatively simple, commonly used, and highly reliable.

[0153] Of course, the number of stator yoke segments 1115, stator tooth shoes 1122, stator tooth bodies 1121, and the number of permanent magnet ring poles are not limited to the above schemes and can be adjusted as needed in actual production.

[0154] A third aspect of the present invention provides an electromechanical device 2, such as... Figure 17 As shown, it includes: a device body 202 and a motor 1 as described in the second aspect embodiment, which is disposed in the device body 202.

[0155] The electromechanical device 2 provided in the third aspect of the present invention includes the motor 1 of the second aspect embodiment, and therefore has all the beneficial effects of the above embodiments, which will not be repeated here.

[0156] In the above embodiments, the electromechanical equipment 2 is a household appliance, medical device, power generation and energy storage equipment, chemical detection and material wind power equipment, or unmanned aerial vehicle.

[0157] Of course, the electromechanical equipment 2 is not limited to the above-mentioned equipment, and can also be other equipment that uses the motor 1.

[0158] The following is combined Figures 12 to 16 Some specific examples are introduced, and the assembly process of motor 1 is described in detail.

[0159] An electric 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 winding coils 13. The stator core 20 includes three stator yoke segments 1115 evenly arranged circumferentially, three stator tooth shoes 1122 evenly arranged circumferentially, and six stator tooth bodies 1121 evenly arranged circumferentially. Any two stator tooth bodies 1121 are connected as a whole only through stator tooth shoes 1122 or stator yoke segments 1115. The three stator yoke segments 1115 and the three stator tooth shoes 1122 are arranged alternately circumferentially. The winding coils 13 are wound on the stator core 20 to form three sets of windings.

[0160] Specific Example 1

[0161] The winding coil 13 is wound on the stator yoke 111.

[0162] Furthermore, the stator core is a one-piece structure, such as... Figure 12 As shown, the stator core is an integral structure. After connecting the insulating frame and the stator core, the winding coils are wound onto the three stator yoke segments of the stator yoke, ultimately forming three sets of windings, A, B, and C.

[0163] Specific Example 2

[0164] The difference from specific example 1 is that: Figure 13 and Figure 14 As shown, the stator core has a split structure, including three splicing parts, which are located on the three stator teeth. The insulation component also has a split structure. The insulation frame is connected to the splicing parts of each stator core, and then wound separately (as shown in the image). Figure 13 (As shown) then pieced together into a whole (as shown) Figure 14 As shown in the figure, this ultimately forms three sets of windings: A, B, and C.

[0165] Specific Example 3

[0166] The difference from specific example 1 is that: Figure 15 and Figure 16 As shown, the stator core has a split structure, including three splicing parts, with the splicing points located at the junction of the stator yoke and the stator tooth body. The insulation components also have a split structure. An insulation frame is fitted onto the winding fixture, and multiple winding coils (such as...) are wound onto the insulation frame along a predetermined direction. Figure 15 As shown), multiple insulating frames with winding coils are inserted into the stator yoke sections respectively. After the windings are fitted onto all stator yoke sections, the multiple splicing parts are connected together (as shown). Figure 16 As shown in the figure, this ultimately forms three sets of windings: A, B, and C.

[0167] In this invention, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "install," "connect," "link," and "fix" should be interpreted broadly. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "link" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0168] In the description of this invention, it should be understood that the terms "upper," "lower," "left," "right," "front," "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0169] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0170] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A stator assembly, characterized in that, include: A stator core, the stator core comprising a stator yoke and a stator tooth; The winding coil is wound on the stator yoke; An insulating component, which is a frame structure, is connected to the stator core and is located between the winding coil and the stator core, for isolating the winding coil from the stator core; The stator yoke includes at least one strip-shaped stator yoke segment; the insulating member includes at least two insulating portions, each corresponding to one of the stator yoke segments, so that the winding coil is wound on the stator yoke segment and the insulating portion; the stator tooth includes at least one stator tooth shoe and at least two stator tooth bodies arranged circumferentially along the stator core; both ends of any stator tooth body are connected to the stator yoke segment and the stator tooth shoe respectively, any two adjacent stator tooth bodies share one stator tooth shoe or share one stator yoke segment, any two adjacent stator tooth bodies connected by the stator tooth shoe have their ends facing the stator yoke not connected by the stator yoke segment, and the stator tooth shoe of the stator tooth and the stator yoke segment of the stator yoke are arranged alternately along the circumferential direction of the stator core; The stator teeth extend radially along the stator core; The stator yoke segment is arc-shaped or straight; and / or the stator tooth shoe is arc-shaped or straight; The stator core can be used in both internal rotor motors and external rotor motors; The stator core includes at least two splicing parts, which are spliced ​​together to form the stator core. Splicing bosses are provided at both ends of the splicing parts in the circumferential direction. The stator yoke segment is constructed as at least two yoke segments. The two yoke segments, the two stator tooth bodies, and the stator tooth shoe are an integral structure. The splicing boss is provided at the opposite ends of the two yoke segments, and the multiple splicing parts are connected through the splicing boss.

2. The stator assembly according to claim 1, characterized in that, The stator tooth shoe protrudes circumferentially from the connected stator tooth body along the stator core; and / or The stator yoke protrudes circumferentially from the connected stator teeth along the stator core.

3. The stator assembly according to claim 1 or 2, characterized in that, The stator tooth shoe extends circumferentially along the stator core; and / or The stator yoke is located on the radially outer or radially inner side of the stator toothed shoe.

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

5. The stator assembly according to claim 1 or 2, characterized in that, The stator core is an integral structure, formed by stacking multiple laminations.

6. The stator assembly according to claim 5, characterized in that, The stator core is a welded, one-piece structure; The sidewall of the stator yoke section is provided with at least one protrusion or recess, and the welding position of the stator core is located at the protrusion or recess.

7. The stator assembly according to claim 5, characterized in that, The insulating component is connected to the stator core to form an integral structure, so that the winding coil is adapted to be wound on the stator yoke after the insulating component and the stator core form the integral structure.

8. The stator assembly according to claim 1 or 2, characterized in that, Each of the splicing parts is formed by stacking multiple stamped pieces.

9. The stator assembly according to claim 8, characterized in that, 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 separate structure, and the splicing point includes the junction of the stator tooth body and the stator yoke segment; and / or The stator yoke segment is configured as at least two yoke segments spliced ​​together circumferentially along the stator core, the splicing point including the junction of the at least two yoke segments; and / or The stator tooth shoe is configured as at least two tooth shoe segments spliced ​​together circumferentially along the stator core, the splicing point including the junction of the at least two tooth shoe segments.

10. The stator assembly according to claim 8, characterized in that, One of the two adjacent splicing parts is provided with a protrusion, and the other is provided with a concave part that matches the protrusion. The protrusion and the concave part are fitted together to connect the two adjacent splicing parts.

11. The stator assembly according to claim 10, characterized in that, The splicing boss protrudes radially from the splicing portion along the stator core, and the splicing boss is provided with the protrusion or the recess.

12. The stator assembly according to claim 8, characterized in that, The insulating component and the stator core are separate structures, and the insulating component includes at least two insulating parts, each of which corresponds one-to-one with a plurality of splicing parts of the stator core, so that: The winding coil is adapted to be wound on the insulating part by a winding fixture, and the insulating part is connected to the corresponding splicing part after the winding operation is completed; or The winding coil is adapted to be wound on the splice portion after the insulating portion is connected to the corresponding splice portion.

13. An electric motor, characterized in that, include: Stator assembly as claimed in any one of claims 1 to 12; and The rotor assembly is arranged concentrically with the stator assembly.

14. The motor according to claim 13, characterized in that, The stator assembly has three stator yoke segments, three stator tooth shoes, and six stator teeth. The rotor assembly includes a permanent magnet ring, which can be an integral structure or a split splicing structure, and can be a two-pole permanent magnet ring, a four-pole permanent magnet ring, or an eight-pole permanent magnet ring.

15. An electromechanical device, characterized in that, include: Equipment body; and The motor as described in claim 13 or 14 is disposed in the main body of the device.

16. The electromechanical equipment according to claim 15, characterized in that, The electromechanical equipment mentioned includes household appliances, medical devices, power generation and energy storage equipment, chemical detection and material wind power equipment, or unmanned aerial vehicles.

Images