Stator assembly and motor

Abstract

The utility model discloses a stator assembly and a motor, the stator assembly comprises a stator iron core and a contact pin, and the contact pin is connected with the end face of the stator iron core and is electrically connected with the stator iron core. According to the stator assembly provided by the embodiment of the utility model, the contact pin of the stator assembly is arranged on the end face of the stator iron core, so that the radial distance of the stator iron core can be reduced, and the radial size of the stator assembly can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of electric drive, in particular to a stator assembly and a motor comprising the stator assembly. Background Art

[0002] When the motor is running, if the stator core is not grounded, it may cause electrical corrosion of the motor and damage the equipment. In addition, grounding the stator core can also reduce electromagnetic interference and improve the anti-interference ability of the motor, thereby ensuring the stable operation of the motor. Therefore, in the motor manufacturing process, in order to ensure the normal and reliable operation of the motor, a stator grounding structure must be set.

[0003] In the related art, the stator core grounding structure is mostly installed close to the outer circumference of the stator. This installation method will make the stator core redundant, increase the space required for installation, and is not conducive to the installation of other components. If the motor is an outer rotor motor, the grounding pin cannot be installed on the outer circumference of the stator, otherwise it will increase the air gap of the motor and seriously affect the performance of the motor. Utility Model Content

[0004] One purpose of the utility model is to provide a stator assembly, wherein the pins of the stator assembly are arranged on the end surface of the stator core, so as to reduce the radial distance of the stator core and the radial size of the stator assembly.

[0005] Another object of the present invention is to provide a motor, which includes the aforementioned stator assembly.

[0006] The stator assembly according to the embodiment of the utility model includes a stator core and a pin, wherein the pin is connected to the end surface of the stator core and is electrically connected to the stator core.

[0007] According to the stator assembly of the embodiment of the utility model, the pins of the stator assembly are arranged on the end surface of the stator core, which can reduce the radial distance of the stator core and reduce the radial size of the stator assembly.

[0008] In addition, the stator assembly according to the above embodiment of the utility model may also have the following additional technical features:

[0009] In some embodiments, the stator assembly further includes a positioning member, which is connected to the stator core and relatively stationary, and has a slot, one end of which is open and the other end extends to the end surface of the stator core, and the pin is inserted into the slot.

[0010] In some embodiments, the stator assembly includes an insulating frame, which wraps the stator core, and the insulating frame has a hollow area. The positioning member is fixedly connected to the insulating frame or is integrally injection molded, and the slot is opposite to and connected to the hollow area.

[0011] In some embodiments, the positioning member includes a first part, a second part and a connecting part, the connecting part is connected between the first part and the second part, the first part has a first groove part, the second part has a second groove part, the first groove part and the second groove part are opposite to each other and constitute the slot, and the two sides of the pin are respectively inserted into the first groove part and the second groove part.

[0012] In some embodiments, a locking portion is provided on the side edge or side of the pin, the locking portion protrudes from the surface of the pin and abuts against the inner side surface of the slot; and / or the pin and the slot are interference fit.

[0013] In some embodiments, an insulating frame is further included, wherein the insulating frame wraps the stator core, the insulating frame has a hollow area, the pins are arranged in the hollow area, and are electrically connected to corresponding areas on the stator core.

[0014] In some embodiments, the pin extends along the axial direction of the stator assembly; and / or the pin is configured as a sheet extending along the circumferential direction of the stator assembly; and / or the pin is in a sheet shape and has a hollow groove on its surface, and the hollow groove is configured to penetrate the pin or not penetrate the pin along the thickness direction.

[0015] In some embodiments, the pin includes a main body portion and a welding portion, wherein the welding portion is connected to the main body portion and welded to the stator core.

[0016] In some embodiments, the main body extends along the axial direction of the stator core, the welding portion is connected to the pin body and bent in a direction perpendicular to the axis, and the welding portion is stacked and welded to connect the stator core.

[0017] In some embodiments, the pin includes a terminal configured to be connected to an electronic device or to be grounded.

[0018] The motor according to the embodiment of the utility model includes: a rotor assembly; according to the aforementioned stator assembly, the stator assembly cooperates with the rotor assembly and is configured to drive the rotor assembly.

[0019] In some embodiments, at least a portion of the stator assembly is mounted radially inward of the rotor assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of a stator assembly of an embodiment of the utility model.

[0021] Figure 2 It is a cross-sectional view of a stator assembly according to an embodiment of the utility model.

[0022] Figure 3 It is a schematic diagram of the cooperation between the stator core and the pins in one embodiment of the utility model.

[0023] Figure 4 It is an exploded schematic diagram of the cooperation between the stator core and the pins of one embodiment of the utility model.

[0024] Figure 5 It is a schematic diagram of a positioning member according to an embodiment of the utility model.

[0025] Figure 6 It is a schematic diagram of a pin of an embodiment of the utility model.

[0026] Figure 7 It is a schematic diagram of a pin according to another embodiment of the utility model.

[0027] Figure 8 It is a cross-sectional view of a motor according to an embodiment of the utility model.

[0028] Figure markings: motor 100, stator assembly 10, support frame 11, sleeve 111, first flange 112, second flange 113, core assembly 12, stator core 121, inner end 1211, outer end 1212, pin 13, main body 131, welding portion 132, terminal 133, hollow groove 134, positioning member 14, slot 1401, first part 141, second part 142, connecting portion 143, first groove portion 1402, second groove portion 1403, rotor assembly 20, rotor core 21, rotor shaft 22, bearing 30. DETAILED DESCRIPTION

[0029] In the motors of related technologies, the grounding structure of the stator core is mostly installed close to the outer circumference of the stator. This installation method will make the stator core redundant, increase the space required for the installation of the stator assembly, and is not conducive to the installation of other components. In addition, if the motor is an outer rotor motor (at least a part of the stator assembly is radially arranged inside the rotor assembly), the grounding pin cannot be installed on the outer circumference of the stator, otherwise it will cause a series of problems such as an increase in the air gap of the motor, which will seriously affect the performance of the motor.

[0030] To this end, the utility model provides a stator assembly, in which a pin is arranged on the end face of the stator core, so that the radial dimension of the stator assembly can be reduced, and it can be applicable to an outer rotor motor to optimize the performance of the outer rotor motor. Among them, the pin in the utility model is preferably a grounding pin of the motor. Of course, the pin can also be other pins in the motor. The utility model is mainly explained by taking the grounding pin as an example, which is not a limitation on the protection scope of the utility model.

[0031] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0032] like Figures 1 to 3 According to the stator assembly 10 of the embodiment of the utility model, it includes a stator core 121 and a pin 13, and the pin 13 is connected to the end face of the stator core 121 and is electrically connected to the stator core 121. Through the electrical connection between the pin 13 and the stator core 121, the stator core 121 can be connected to other electronic devices or grounded, meeting the stability or wiring requirements of the stator assembly 10. By connecting the pin 13 to the end face of the stator core 121, it is possible to avoid the radial size and outer peripheral shape of the stator core 121 affected by the setting of the pin 13 and the outer peripheral surface of the stator core 121, thereby improving space utilization. When the stator assembly 10 is applied to the outer rotor motor 100, it is possible to avoid adverse effects on the air gap between the stator assembly 10 and the rotor assembly 20, thereby improving the performance of the motor 100.

[0033] According to the stator assembly 10 of the embodiment of the utility model, the pins 13 of the stator assembly 10 are arranged on the end surface of the stator core 121, which can reduce the radial distance of the stator core 121 and reduce the radial size of the stator assembly 10. In addition, the stator assembly 10 is particularly suitable for the outer rotor motor 100, which can prevent the pins 13 from affecting the performance of the outer rotor motor 100.

[0034] In addition, in the related art, an insulating layer is attached to the outer surface of the stator core 121. In order to facilitate the electrical connection between the pin 13 and the stator core 121, the insulating layer can be removed from a local area of ​​the outer surface of the stator core 121, and the pin 13 can be electrically connected to the portion where the insulating layer is removed. Alternatively, a conductive structure can be provided on the end surface of the stator core 121, and the pin 13 can be electrically connected through the conductive structure to achieve electrical connection between the pin 13 and the stator core 121. The insulating layer on the surface of the stator core 121 can be an insulating coating, or an insulating structure formed by injection molding, for example, an insulating frame is wrapped around the stator core 121. The utility model design proposes a stator assembly, which is welded to the surface of the core after the insulating layer is partially removed from the surface of the core, and then connected to the ground wire to achieve grounding of the stator core. The utility model design has the technical advantages of reducing the electrical corrosion of the motor, improving the operating reliability and life of the motor, etc.

[0035] In some embodiments of the utility model, an insulating frame (not shown in the figure) is also included, the insulating frame wraps the stator core 121, the insulating frame has a hollow area, the pin 13 is arranged in the hollow area, and is electrically connected to the corresponding area on the stator core 121. By providing an insulating frame, the stator core 121 can be wrapped to achieve insulation of the stator core 121 to protect the stator assembly 10. In addition, a hollow area is provided on the insulating frame to facilitate the fixation and electrical connection of the pin 13 to the stator core 121. Among them, the aforementioned insulating frame can be arranged to be formed on the outer surface of the stator core 121 by injection molding, or it can be formed in other ways. In combination with the above, the positioning member 14 and the insulating frame can be integrally formed or assembled together after being formed separately.

[0036] In addition, the pin 13 in the present invention is fixedly connected to the stator core 121, wherein the pin 13 can be connected to the stator core 121 by welding, snap connection, plug-in, etc. Figures 3 to 5 In some embodiments of the present invention, the stator assembly 10 further includes a positioning member 14, which is connected to the stator core 121 and relatively stationary. The positioning member 14 has a slot 1401, one end of which is open and the other end of which extends to the end surface of the stator core 121. The pin 13 is inserted into the slot 1401 and is electrically connected to the stator core 121. Through the plug-in connection, a stable connection between the pin 13 and the positioning member 14 can be achieved, and through the relatively stationary cooperation between the positioning member 14 and the stator core 121, a stable cooperation between the pin 13 and the stator core 121 can be achieved, which effectively improves the stable electrical connection between the pin 13 and the stator core 121, and improves the stability of the stator assembly 10 and the motor 100 including the stator assembly 10. In addition, by plugging and fitting the plug pin 13 with the positioning member 14 , the plug pin 13 and the positioning member 14 can be quickly installed, thereby improving the assembly efficiency of the stator assembly 10 and reducing the production cost of the motor 100 .

[0037] In combination with the above-mentioned embodiments, in some embodiments of the present invention, the stator assembly 10 includes an insulating frame, the insulating frame wraps the stator core 121, the insulating frame has a hollow area, the positioning member 14 is fixedly connected to the insulating frame, and the slot 1401 is opposite to and connected to the hollow area. The stator core 121 can be wrapped by the insulating frame to achieve insulation of the stator core 121, and the positioning member 14 is connected to the insulating frame to achieve relative stillness of the positioning member 14 and the stator core 121. In addition, a hollow area is provided on the insulating frame, and when the plug pin 13 is plugged and connected to the positioning member 14, the plug pin 13 can be opposite to the hollow area on the insulating frame and connected to the part of the stator core 121 opposite to the hollow area, thereby achieving electrical connection between the plug pin 13 and the stator core 121 and improving the stability of the electrical connection between the plug pin 13 and the stator core 121.

[0038] In addition, the positioning member 14 and the insulating frame may be integrally injection molded, thereby increasing the connection strength between the positioning member 14 and the insulating frame and improving the stability and service life of the stator assembly 10 .

[0039] Combination Figures 3 to 5 The positioning member 14 includes a first portion 141, a second portion 142 and a connecting portion 143. The connecting portion 143 is connected between the first portion 141 and the second portion 142. The first portion 141 has a first slot 1402, and the second portion 142 has a second slot 1403. The first slot 1402 and the second slot 1403 are opposite to each other and form a slot 1401. Both sides of the pin 13 are respectively plugged into the first slot 1402 and the second slot 1403. The connecting portion 143 can realize a stable connection between the first portion 141 and the second portion 142, thereby improving the structural strength and stability of the positioning member 14. The first portion 141 and the second portion 142 are opposite to each other along a first direction (for example, the circumferential direction of the stator core 121, refer to A-A' in the attached drawings), and the connecting portion 143 connects the first portion 141 along a second direction (for example, the radial direction of the stator core 121, refer to the attached drawings). Figure 2 B-B' or Figures 3 to 5 In other words, the connection portion 143 is disposed on one side of the slot 1401, so that the positioning member 14 can be configured to be closed on one side along the second direction and open on the other side. While ensuring the connection strength between the first portion 141 and the second portion 142, the positioning member 14 can have a certain elastic deformation ability, which facilitates the stable connection of the pin 13 to the positioning member 14. Figures 3 to 5 The connecting portion 143 is arranged on the inner side of the slot 1401 in the radial direction, so as to facilitate the matching between the pin 13 and the positioning member 14.

[0040] In order to achieve stable fit between the pin 13 and the positioning piece 14, the pin 13 and the slot 1401 can be set to an interference fit or a transition fit, and a locking structure can be set on the pin 13 or the positioning piece 14. The locking structure can be used to achieve locking between the pin 13 and the positioning piece 14, thereby improving the stability and structural strength of the fit between the pin 13 and the positioning piece 14. In some embodiments of the utility model, a locking portion is provided on the side or side of the plug pin 13, the locking portion protrudes from the surface of the plug pin 13 and abuts against the inner side of the slot 1401, and the locking portion can improve the damping of the plug pin 13 from the positioning member 14, and improve the stability and structural strength of the cooperation between the plug pin 13 and the locking portion. In combination with the above-mentioned embodiment, one side of the plug pin 13 is plugged into the first groove 1402, and the locking portion is provided on the side of the plug pin 13. When the plug pin 13 is plugged into the slot 1401, the locking portion of the one side of the plug pin 13 abuts against the inner surface of the first groove 1402, thereby increasing the locking force between the plug pin 13 and the first part 141; In addition, the other side of the plug pin 13 can be inserted into the second groove 1403, and a locking part is provided on the side of the plug pin 13. When the plug pin 13 is inserted into the slot 1401, the locking part on the other side of the plug pin 13 abuts against the inner surface of the second groove 1403, thereby increasing the locking force between the plug pin 13 and the second part 142; in addition, the side of the plug pin 13 can be opposite to the connecting part 143, and a locking part is provided on the side of the plug pin 13. When the plug pin 13 is inserted into the slot 1401, the locking part on the side of the plug pin 13 abuts against the inner surface of the connecting part 143, thereby increasing the locking force between the plug pin 13 and the connecting part 143. Of course, the above description of the location of the locking part is only some embodiments of the utility model, and is not a limitation on the protection scope of the utility model. The combination and expansion of the above different technical solutions can obtain other technical solutions of the present application, which are all within the protection scope of the present application.

[0041] The locking portion can be set as a boss protruding relative to the plug pin 13, and the boss can be set in a triangular shape, a spherical shape, an arc shape, etc. Taking the boss set as a triangle as an example, the surface of the boss can be divided into a first surface and a second surface along the plug-in direction of the plug pin 13 (refer to the direction C→C' in the figure), wherein the protrusion height of the first surface in the plug-in direction gradually decreases, and the protrusion height of the second surface in the plug-in direction gradually increases, and the first surface and the second surface are connected, so that the plug pin 13 can be easily installed on the positioning member 14, and the matching structural strength between the plug pin 13 and the positioning member 14 can be improved. In addition, the slope or slope of the first surface can be set to be smaller than the slope of the second surface, so that the plug-in portion can be easily locked after being plugged into the slot 1401.

[0042] Of course, a locking portion may also be provided on the inner side surface of the slot 1401 , the locking portion protruding from the inner side surface of the slot 1401 and abutting against the pin 13 .

[0043] In addition, the plug pin 13 of the present invention can be interference fit with the slot 1401, which can also achieve stable fit between the plug pin 13 and the positioning member 14.

[0044] In addition, a groove may be provided on the pin 13 or the slot 1401. The groove may be provided on the pin 13 and may or may not penetrate the pin 13 in the thickness direction. The groove may also be provided on the positioning member 14 and may or may not penetrate the positioning member 14. For example, the groove may be provided on the aforementioned first part 141, the second part 142 or the connecting part 143.

[0045] like Figures 3 to 7 In some embodiments of the present invention, the plug pin 13 extends along the axial direction of the stator assembly 10 (refer to the third direction C-C' in the accompanying drawings). This can improve the assembly stability of the plug pin 13 and the stator core 121, and reduce the space occupied by the plug pin 13. In addition, the plug pin 13 can also be configured as a sheet extending along the circumferential direction of the stator assembly 10. This can facilitate the molding of the plug pin 13, facilitate the positioning of the plug pin 13, improve the installation efficiency of the plug pin 13, and reduce costs.

[0046] In addition, the plug pin 13 can be provided in a sheet shape, and a hollow groove 134 can be provided on the surface of the plug pin 13. The hollow groove 134 is configured to penetrate the plug pin 13 or not penetrate the plug pin 13 along the thickness direction. In this way, the material used for the plug pin 13 can be reduced, the cost can be reduced, and the material can be saved. In addition, the assembly of the plug pin 13 and the stator core 121 can be facilitated. For example, when the plug pin 13 is plugged into the aforementioned positioning member 14, the hollow groove 134 can be used to check the matching state of the plug pin 13 and the positioning member 14. In addition, a structure corresponding to the hollow groove 134 can be provided on the positioning member 14 (for example, the aforementioned connecting portion 143) to achieve the positioning of the plug pin 13.

[0047] In addition, in order to improve the connection stability between the plug pin 13 and the stator core 121, the plug pin 13 can be connected to the stator core 121 by welding. In some embodiments of the utility model, the plug pin 13 includes a body portion 131 and a welding portion 132. The welding portion 132 is connected to the body portion 131 and welded to the stator core 121. Through the welding connection, the connection stability between the plug pin 13 and the stator core 121 can be improved, and the stable electrical connection between the plug pin 13 and the stator core 121 can be achieved.

[0048] Combination Figures 3 to 7The main body 131 extends along the axis direction of the stator core 121, the welding part 132 is connected to the main body of the pin 13 and is bent in a direction perpendicular to the axis, and the welding part 132 is stacked and welded to the stator core 121. By providing the bent welding part 132, the matching area between the welding part 132 and the stator core 121 can be increased, thereby improving the structural strength of the welding between the stator core 121 and the welding part 132.

[0049] Combination Figures 3 to 7 In some embodiments of the present invention, the pin 13 includes a terminal 133, which is configured to connect an electronic device or ground. The stator core 121 can be grounded or connected to other electronic devices through the pin 13 to meet the wiring requirements of the motor 100. The present invention mainly uses the grounding of the pin 13 as an example, but this does not limit the scope of protection of the present invention.

[0050] Combination Figures 1 to 8 According to the embodiment of the utility model, the motor 100 includes: a rotor assembly 20; according to the aforementioned stator assembly 10, the stator assembly 10 cooperates with the rotor assembly 20 and is configured to drive the rotor assembly 20. The pins 13 of the stator assembly 10 of the motor 100 are arranged on the end face of the stator core 121, which can reduce the radial distance of the motor 100 and reduce the radial size of the stator assembly 10. The problem of redundant stator shape of the motor 100 caused by the pins 13 in the related art is solved, and the installation space is saved. At the same time, it solves a series of problems that the pins 13 cannot be installed on the circumferential surface of the outer rotor motor 100, otherwise the air gap will increase, which will seriously affect the performance of the motor 100.

[0051] In some embodiments, at least a portion of the stator assembly 10 is assembled radially inward of the rotor assembly 20. That is, the motor 100 is an outer rotor motor 100, and the outer rotor motor 100 uses the aforementioned stator assembly 10, which can improve the structural stability of the motor 100 and facilitate assembly.

[0052] Combination Figures 1 to 8 The motor 100 may include a stator assembly 10 and a rotor assembly 20. The stator assembly 10 may include a support frame 11 and a core assembly 12. The support frame 11 may include a sleeve 111. A first flange 112 is provided on the outer circumferential surface of the sleeve 111. The core assembly 12 is set to be positioned on the outer circumferential surface of the sleeve 111, and the core assembly 12 is adjacent to the first flange 112 along the axial direction of the support frame 11. The first flange 112 can facilitate the stable connection between the core assembly 12 and the sleeve 111. In addition, the first flange 112 can locate the position of the core assembly 12, improve the positioning accuracy of the positioning core, and ensure the yield and energy efficiency of the motor 100. Among them, one end of the core assembly 12 along the axial direction can be abutted and matched with the first flange 112.

[0053] The rotor assembly 20 may include a rotor core 21 and a rotor shaft 22, wherein the rotor shaft 22 is connected to the rotor core 21, at least a portion of the support frame 11 is radially disposed inside the rotor core 21, and the rotor shaft 22 is rotatably inserted into the support frame 11, wherein bearings 30 are disposed on opposite sides of the second flange 113, and the rotor shaft 22 is inserted into the bearings 30, and the bearings 30 are disposed inside the support frame 11. The second flange 113 facilitates stable matching of the dual bearings 30 and the support frame 11.

[0054] In some embodiments of the present invention, the stator assembly 10 includes a stator core 121, an insulating frame, a positioning member 14, and a plug pin 13, wherein the positioning member 14 can be arranged along the circumference of the motor 100, and the plug pin 13 can also be arranged along the circumference of the motor 100. A slot 1401 is provided on the positioning member 14, and the positioning member 14 is fixedly connected or integrally formed with the insulating frame, and the plug pin 13 is plugged and matched with the slot 1401, so that the plug pin 13 is fixedly connected and electrically connected to the stator core 121. The plug pin 13 may include a body 131, a terminal 133, a locking portion, and a welding portion 132, wherein the terminal 133 may have a wire hole. The main body 131 can be arranged to extend along the axial direction of the motor 100 or the stator assembly 10, and one end of the main body 131 close to the stator core 121 is connected to the welding portion 132, and one end away from the stator core 121 is connected to the terminal 133. In addition, locking portions can be arranged on both sides or sides of the main body 131 in a direction perpendicular to the axial direction. The slot 1401 is arranged on the insulating frame, and the extension direction is the same as the axial direction of the motor 100. One end of the slot 1401 is connected to the insulating frame, and the other end is open, and fixed positions are arranged on both sides. The pin 13 can be inserted and positioned in the slot 1401, and after the pin 13 is inserted into the slot 1401, the welding portion 132 of the pin 13 will abut against the stator core 121, and can be connected to the stator core 121 by welding, and the locking portion on the pin 13 will cooperate with the positioning member 14 to achieve the locking of the pin 13.

[0055] Among them, for the matching structure between the pin 13 and the slot 1401, in order to ensure the matching stability, the pin 13 and the slot 1401 are interference fit, and locking parts are provided on both sides of the pin 13. In order to improve the smoothness and stability of the matching, a chamfered structure is provided on the back. In addition, for the contact and matching between the pin 13 and the stator core 121, in order to ensure the safe operation of the motor 100, the pin 13 and the stator core 121 must be tightly matched. In order to improve the stability of the matching structure formed by the two, a welding part 132 is provided at the bottom of the pin 13. After the insulating layer on the surface of the stator core 121 is partially removed, the bottom of the pin 13 is welded to the surface of the stator core 121. For the connection between the pin 13 and the external ground wire, a circular wire hole is provided at the upper end of the pin 13 to facilitate the ground wire to pass through the wire hole and be welded to the pin 13. The pin 13 can be made of conductive material, including but not limited to brass with bright tin plating.

[0056] In addition, if Figure 1 to Figure 2 The stator assembly 10 of the utility model includes: a support frame 11 and a core assembly 12, wherein the core assembly 12 includes a plurality of stator cores 121, the plurality of stator cores 121 are connected to form a long strip, the core assembly 12 is wound on the support frame 11 along the circumference of the support frame 11, and when the core assembly 12 is wound on the support frame 11, the plurality of stator cores 121 are arranged along the circumference of the support frame 11. By winding the core assembly 12 on the support frame 11, the stable assembly of the support frame 11 and the core assembly 12 can be facilitated, and the assembly efficiency of the stator assembly 10 can be improved. By winding the core assembly 12 in a long strip shape on the support frame 11 to form the stator assembly 10, the structure of the stator assembly 10 can be simplified, and the forming efficiency of the stator assembly 10 can be improved. The utility model ensures a high winding slot full rate of the stator assembly 10, while having low cost, and ensures the roundness accuracy of the stator assembly 10 through the support frame 11.

[0057] like Figure 1 and Figure 2In some embodiments, the stator core 121 has an inner end 1211 and an outer end 1212. The inner ends 1211 of the multiple stator cores 121 are connected in sequence to form a long strip. When the core assembly 12 is wound on the support frame 11, the inner end 1211 of the stator core 121 is closer to the support frame 11 than the outer end 1212. The stator core 121 can be arranged to extend along the radial direction of the support frame 11. One of the adjacent stator cores 121 can rotate relative to the other around the support frame 11, so that the long strip core assembly 12 can be bent into an arc. By connecting the inner ends 1211 of the multiple stator cores 121 and winding them on the support frame 11, the forming efficiency of the core assembly 12 can be improved. When the core assembly 12 is wound on the support frame 11, the stable installation of the core assembly 12 and the support frame 11 can be improved, and the assembly efficiency and stability of the stator assembly 10 can be improved. In addition, the winding on the core assembly 12 can be completed before being wound on the support frame 11, which can simplify the forming of the winding and improve the installation efficiency of the winding.

[0058] The stator core 121 can be configured as a long strip, including an inner end 1211, an outer end 1212, and a middle section, wherein the middle section extends radially along the stator assembly 10, and one end of the middle section is connected to the inner end 1211, and the other end is connected to the outer end 1212, wherein the outer peripheral surface of the support frame 11 can be configured as an arc surface, the inner side surface of the inner end 1211 can be configured as an arc structure, and the outer side surface of the outer end 1212 can also be configured as an arc structure, and after the stator core 121 is manufactured, the appearance of the stator assembly 10 is generally circular. Of course, the outer peripheral surface of the support frame 11 can also be other shapes, so that the inner side surface of the inner end 1211 can be configured as a corresponding shape; the inner peripheral surface of the support frame 11 can be configured as a multi-segment surface shape; the inner side surface of the inner end 1211 can also be configured as a multi-segment surface; the outer side surface of the outer end 1212 can also be configured as a multi-segment surface. The pin 13 in the present invention can be connected to the end surface of the inner end 1211, the end surface of the outer end 1212 or the end surface of the middle section.

[0059] In addition, the inner end 1211 can extend out of the two sides of the middle section along the circumference of the stator assembly 10, and the outer end 1212 can extend out of the two sides of the middle section along the circumference of the stator assembly 10. At this time, the stator core 121 is configured to be substantially in the shape of an I. In addition, a plurality of notched grooves are provided on the stator core 121 for positioning and assembling the stator core 121. The notched grooves can be provided on both the inner end 1211 and the outer end 1212.

[0060] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0061] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0062] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0063] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0064] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" 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 utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0065] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A stator assembly (10), characterized in that: It comprises a stator core (121) and a plug pin (13), wherein the plug pin (13) is connected to the end surface of the stator core (121) and is electrically connected to the stator core (121); The stator assembly (10) further comprises a positioning member (14), wherein the positioning member (14) is connected to the stator core (121) and is relatively stationary, the positioning member (14) having a slot (1401), one end of the slot (1401) being open and the other end extending to the end surface of the stator core (121), and the pin (13) is inserted into the slot (1401).

2. The stator assembly (10) according to claim 1, characterized in that: The stator assembly (10) comprises an insulating frame, the insulating frame wraps the stator core (121), the insulating frame has a hollow area, the positioning member (14) is fixedly connected to the insulating frame or is integrally injection-molded, and the slot (1401) is opposite to and connected to the hollow area.

3. The stator assembly (10) according to claim 1, characterized in that: The positioning member (14) comprises a first part (141), a second part (142) and a connecting part (143); the connecting part (143) is connected between the first part (141) and the second part (142); the first part (141) has a first groove part (1402); the second part (142) has a second groove part (1403); the first groove part (1402) and the second groove part (1403) are opposite to each other and form the slot (1401); the two sides of the pin (13) are respectively plugged into the first groove part (1402) and the second groove part (1403).

4. The stator assembly (10) according to claim 1, characterized in that: A locking portion is provided on the side or side of the plug pin (13), the locking portion protrudes from the surface of the plug pin (13) and abuts against the inner side surface of the slot (1401); or, the plug pin (13) and the slot (1401) are interference fit; or, a locking portion is provided on the inner side surface of the slot (1401), the locking portion protrudes from the inner side surface of the slot (1401) and abuts against the plug pin (13).

5. The stator assembly (10) according to claim 1, characterized in that: It also comprises an insulating frame, the insulating frame wrapping the stator core (121), the insulating frame having a hollow area, the plug pin (13) being arranged in the hollow area and electrically connected to a corresponding area on the stator core (121).

6. The stator assembly (10) according to any one of claims 1 to 5, characterized in that: The plug pin (13) extends in the axial direction of the stator assembly (10); and / or the plug pin (13) is configured to be in the form of a sheet extending in the circumferential direction of the stator assembly (10); and / or the plug pin (13) is in the form of a sheet and has a hollow groove (134) on its surface, and the hollow groove (134) is configured to penetrate the plug pin (13) in the thickness direction or not penetrate the plug pin (13).

7. The stator assembly (10) according to any one of claims 1 to 5, characterized in that: The plug pin (13) comprises a main body portion (131) and a welding portion (132); the welding portion (132) is connected to the main body portion (131) and welded to the stator core (121).

8. The stator assembly (10) according to claim 7, characterized in that: The main body (131) extends along the axial direction of the stator core (121), the welding portion (132) is connected to the pin (13) body and is bent in a direction perpendicular to the axial direction, and the welding portion (132) is stacked and welded to connect the stator core (121).

9. The stator assembly (10) according to any one of claims 1 to 5, characterized in that: The plug pin (13) comprises a terminal (133), and the terminal (133) is configured to be used for connecting an electronic device or grounding.

10. A motor (100), characterized in that: include: Rotor assembly (20); According to the stator assembly (10) according to any one of claims 1 to 9, the stator assembly (10) cooperates with the rotor assembly (20) and is configured to drive the rotor assembly (20).

11. The electric machine (100) according to claim 10, characterized in that At least a portion of the stator assembly (10) is mounted radially inside the rotor assembly (20).

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