Stator device, motor and vehicle

Abstract

The utility model discloses a stator device, a motor and a vehicle. The stator device comprises an iron core assembly, a first busbar assembly and a second busbar assembly. The iron core assembly comprises an annular stator iron core and a winding, and the winding is arranged on the stator iron core. A first busbar assembly and a second busbar assembly, the first busbar assembly is arranged in the inner cavity of the stator iron core, and the second busbar assembly is installed at the end part of the iron core assembly in the axial direction; one of the first busbar assembly and the second busbar assembly is connected with the head end of the winding, and the other one is connected with the tail end of the winding. According to the stator device, the first busbar assembly is arranged in the inner cavity of the stator core, and the second busbar assembly is mounted at the axial end part of the core assembly, so that the first busbar assembly can fully utilize the space of the inner cavity of the stator core, and the axial size of the stator device can be reduced; and miniaturization of the stator device and the motor can be realized.

Description

Technical Field

[0001] The present application relates to the technical field of drive equipment, and more specifically, to a stator device, a motor and a vehicle. Background Art

[0002] In the related art, the motor includes a stator device, which includes a stator core and a winding. The winding is usually arranged on the stator teeth of the stator core in a single-tooth winding or a plurality of adjacent teeth of the same phase to improve the motor efficiency. Among them, the same phases of the three-phase winding of the motor need to be bridged by a busbar, which is large in size and is not conducive to the miniaturization of the motor. Utility Model Content

[0003] Embodiments of the present application provide a stator device, a motor, and a vehicle.

[0004] The stator device of the embodiment of the present application includes a core assembly, a first bus assembly and a second bus assembly. The core assembly includes an annular stator core and a winding, and the winding is arranged on the stator core. The first bus assembly and the second bus assembly, the first bus assembly is arranged in the inner cavity of the stator core, and the second bus assembly is installed at the end of the core assembly in the axial direction; one of the first bus assembly and the second bus assembly is connected to the head end of the winding, and the other is connected to the tail end of the winding.

[0005] In some embodiments, the first busbar assembly is connected to the head end of the winding, and the second busbar assembly is connected to the tail end of the winding.

[0006] In some embodiments, the winding includes a multi-phase winding, and the first busbar assembly includes a covering and a plurality of busbars. The covering is disposed in the inner cavity of the stator core. The plurality of busbars are injection molded in the covering to be insulated from each other, and each busbar is used to be connected to the head end of the same-phase winding.

[0007] In certain embodiments, the first busbar assembly further includes a plurality of wire clamping terminals, and the wire clamping terminals are disposed on a side of the covering member away from the core assembly; the wire clamping terminals are used to connect the winding and the busbar.

[0008] In some embodiments, the winding includes a plurality of first phase windings connected in parallel with each other, a plurality of second phase windings connected in parallel with each other, and a plurality of third phase windings connected in parallel with each other. The plurality of the card wire terminals include a plurality of first terminals, a plurality of second terminals, and a plurality of third terminals, the first terminal is used to be connected to the head end of the first phase winding, the second terminal is used to be connected to the head end of the second phase winding, and the third terminal is used to be connected to the head end of the third phase winding. The plurality of the busbars include a first busbar, a second busbar, and a third busbar, the plurality of the first terminals are connected to the first busbar, the plurality of the second terminals are connected to the second busbar, and the plurality of the third terminals are connected to the third busbar.

[0009] In certain embodiments, the first busbar assembly further includes a three-phase terminal, one end of which is electrically connected to the plurality of busbars, respectively, and the other end of which is suitable for being electrically connected to a three-phase power supply.

[0010] In some embodiments, the first busbar assembly further includes a three-phase terminal, which is suitable for being electrically connected to a three-phase power supply. The three-phase terminal includes a first phase terminal, a second phase terminal, and a third phase terminal. The first phase terminal is connected to a first busbar of the busbar. The second phase terminal is connected to a second busbar of the busbar. The third phase terminal is used to be connected to a third busbar of the busbar.

[0011] In some embodiments, the stator device also includes a bracket, which includes a base and a peripheral wall arranged on the base, the peripheral wall passes through the inner cavity of the stator core, the base is provided with a penetrating mounting hole, and the three-phase terminal is electrically connected to the three-phase power supply through the mounting hole.

[0012] In some embodiments, the stator device further includes a bracket, the bracket includes a base and a peripheral wall disposed on the base, the peripheral wall passes through the inner cavity of the stator core, and a first mounting seat is disposed on the inner side of the peripheral wall. The first busbar assembly further includes a second mounting seat, the second mounting seat is disposed on the inner side of the covering member, and the second mounting seat cooperates with the first mounting seat to connect the first busbar assembly to the bracket.

[0013] In certain embodiments, the core assembly further includes an insulating frame, wherein the insulating frame is disposed between the stator core and the winding to insulate the stator core from the winding, and the second busbar assembly is connected to the insulating frame.

[0014] In some embodiments, the second busbar assembly includes a plurality of the busbars, and the plurality of the busbars are arranged at intervals along the circumferential direction.

[0015] In some embodiments, the busbar is provided with a first connecting piece; the insulating frame is provided with a second connecting piece at the axial end, and the second connecting piece cooperates with the first connecting piece to connect the busbar to the insulating frame.

[0016] In some embodiments, one of the first connecting member and the second connecting member is a column, and the other is a mounting hole.

[0017] In some embodiments, the first connecting member and the second connecting member are both mounting holes, and the fasteners pass through the first connecting member in sequence and are locked to the second connecting member.

[0018] In certain embodiments, a wiring notch is provided on the insulating frame, and the tail end of the winding passes through the wiring notch and is electrically connected to the second bus assembly.

[0019] In some embodiments, a mating portion is provided on the inner side of the side wall of the stator core; the stator device also includes a bracket, the bracket includes a base and a peripheral wall arranged on the base, the peripheral wall passes through the inner cavity of the stator core and is connected to the stator core, and a limiting portion is provided on the outer side of the peripheral wall, the limiting portion cooperates with the mating portion to limit the circumferential rotation of the stator core relative to the bracket.

[0020] In some embodiments, the stator core includes a plurality of stator teeth arranged along the circumferential direction, the winding is wound around the stator teeth, and the winding includes a multi-phase winding; a wire is wound around one of the stator teeth, and each phase winding is formed by coils wound around at least two adjacent stator teeth connected in series.

[0021] In some embodiments, the stator core includes a plurality of stator teeth arranged along the circumferential direction, the winding is wound around the stator teeth, and the winding includes a multi-phase winding; each phase winding is formed by a conductive wire continuously wound around at least two of the stator teeth.

[0022] In some embodiments, in the radial direction of the stator core, the second bus bar assembly includes a first side and a second side opposite to each other, and a plurality of wire clamping grooves are provided on the first side of the second bus bar assembly and / or the second side of the second bus bar assembly, and the wire clamping grooves are electrically connected to the tail end of the winding.

[0023] In certain embodiments, the first busbar assembly is a copper busbar, and the second busbar assembly includes a PCB busbar.

[0024] The motor of the embodiment of the present application includes the stator device described in any of the above embodiments.

[0025] In some embodiments, the motor further includes a rotor device, which is disposed outside the stator device and is capable of moving relative to the stator device.

[0026] The vehicle according to the embodiment of the present application includes the motor described in any one of the above embodiments.

[0027] In the stator device, motor and vehicle of the embodiments of the present application, the first bus bar assembly is arranged in the inner cavity of the stator core, the second bus bar assembly is installed at the axial end of the core assembly, one of the first bus bar assembly and the second bus bar assembly is connected to the head end of the winding, and the other is connected to the tail end of the winding. Therefore, the first bus bar assembly can make full use of the space in the inner cavity of the stator core, thereby reducing the axial size of the stator device, which is conducive to the miniaturization of the stator device and the motor.

[0028] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0030] Figure 1 is a schematic diagram of the structure of a vehicle according to some embodiments of the present application;

[0031] Figure 2 yes Figure 1 A three-dimensional schematic diagram of a partial structure of a motor in a vehicle shown;

[0032] Figure 3 yes Figure 2 The enlarged schematic diagram of point III in the middle;

[0033] Figure 4 yes Figure 2 A schematic diagram of the three-dimensional structure of a busbar assembly of a stator device in a motor shown;

[0034] Figure 5 yes Figure 2 A schematic diagram of the three-dimensional structure of a manifold of a stator device in a motor shown;

[0035] Figure 6 yes Figure 2 A schematic diagram of the three-dimensional structure of a bracket of a stator device in the motor shown;

[0036] Figure 7 yes Figure 2 A schematic diagram of the three-dimensional structure of the core assembly of the stator device in the motor shown;

[0037] Figure 8 is a wiring diagram of a stator device in some embodiments of the present application;

[0038] Fig. 9 It is a wiring diagram of the stator device of other embodiments of the present application.

[0039] Description of main component symbols:

[0040] Vehicles 1000;

[0041] Motor 100; vehicle body 200; wheel 300; axial direction X; radial direction Y;

[0042] Stator device 10; three-phase power supply 30, first phase terminal 31, second phase terminal 33, third phase terminal 35;

[0043] Core assembly 11, stator core 111, inner cavity 110, stator teeth 1111, matching portion 1113, winding 113, head end 1131, tail end 1133, insulating frame 115, second connector 1151, wiring gap 1153;

[0044] The first busbar assembly 13, the covering member 131, the busbar 132, the clamping terminal 133, the three-phase terminal 135, the first phase terminal 1351, the second phase terminal 1353, the third phase terminal 1355, and the second mounting seat 137;

[0045] The second busbar assembly 15, the busbar plate 151, the first connector 1511, the first side 153, the second side 155, and the wire clamping groove 157;

[0046] The bracket 17 , the base 171 , the mounting hole 1711 , the peripheral wall 173 , the first mounting seat 175 , and the limiting portion 177 . DETAILED DESCRIPTION

[0047] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0048] In the description of the present application, it should be understood that the terms "center", "length", "up", "down", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to 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 application.

[0049] 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 this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0050] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0051] In the present application, 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”, and “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”, and “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.

[0052] See also Figure 1 The vehicle 1000 of the embodiment of the present application includes a motor 100. The vehicle 1000 includes but is not limited to a passenger vehicle such as a pure electric vehicle and a hybrid vehicle or a large engineering vehicle with not very bad working conditions.

[0053] Furthermore, in some embodiments, the vehicle 1000 further includes a body 200 and a wheel 300, wherein the wheel 300 is disposed on the body 200 and can move relative to the body 200. The motor 100 can be a hub motor, which is disposed on the wheel 300 and can drive the wheel 300 to move relative to the body 200 to achieve movement of the vehicle 1000 (including but not limited to forward, backward or turning, etc.). It is understood that in other embodiments, the motor 100 can also be disposed in the body 200, and the motor 100 can also include but not limited to a linear motor, a rotary motor, a bidirectional motor, etc.

[0054] Among them, since the vehicle 1000 in this embodiment includes the motor 100, it can be understood that the vehicle 1000 at least includes the same beneficial effects as the motor 100. Therefore, for the beneficial effects of the vehicle 1000, please refer to the beneficial effects of the motor 100 described below.

[0055] See also Figure 1 The motor 100 of the embodiment of the present application includes a stator device 10. Since the motor 100 in the present embodiment includes the stator device 10, it can be understood that the motor 100 at least includes the same beneficial effects as the stator device 10. Therefore, the beneficial effects of the motor 100 refer to the beneficial effects of the stator device 10 described below.

[0056] Further, in some embodiments, the motor 100 further includes a rotor device, which can move relative to the stator device 10. Exemplarily, when the motor 100 is a profile motor, the rotor device can be connected to the wheel 300, so that when the rotor device rotates relative to the stator device 10, the rotor device can drive the wheel 300 to rotate. In the embodiment of the present application, the rotor device is arranged outside the stator device 10, that is, the motor 100 is an outer rotor motor.

[0057] See also Figures 1 to 3 The stator device 10 of the embodiment of the present application includes a core assembly 11, a first busbar assembly 13 and a second busbar assembly 15. The core assembly 11 includes an annular stator core 111 and a winding 113, and the winding 113 is arranged in the stator core 111. The first busbar assembly 13 is arranged in the inner cavity 110 of the stator core 111, and the second busbar assembly 15 is installed at the end of the core assembly 11 in the axial direction X. One of the first busbar assembly 13 and the second busbar assembly 15 is connected to the head end 1131 of the winding 113, and the other is connected to the tail end 1133 of the winding 113.

[0058] Among them, the stator core 111 is a structure for constituting the magnetic flux circuit of the motor 100 and the fixed winding 113. In one example, the stator core 111 can be formed by stacking a plurality of silicon steel sheets. In another example, the stator core 111 can be composed of a whole iron core. The cross-sectional shape of the stator core 111 is a circular ring. In some embodiments, the stator core 111 includes a plurality of stator teeth 1111 arranged along the circumferential direction, and the winding 113 is wound around the stator teeth 1111. Among them, the stator teeth 1111 protrude and extend from the outer side of the side wall of the stator core 111 in a direction away from the center line of the stator core 111, and the plurality of stator teeth 1111 are evenly spaced along the circumference of the stator core 111, so that the uniformity of the magnetic field generated by the winding 113 can be ensured.

[0059] The winding 113 is a structure of a coil or a combination of coils wound by an insulated wire. The wire can be made of at least one of copper, aluminum and silver. When the winding 113 is energized, the winding 113 can generate a magnetic field. In some embodiments, the winding 113 includes a multi-phase winding. Specifically, the winding 113 includes a plurality of first-phase windings connected in parallel to each other, a plurality of second-phase windings connected in parallel to each other, and a plurality of third-phase windings connected in parallel to each other. Among them, the phase relationship of the current or voltage of the plurality of first-phase windings is consistent; the phase relationship of the current or voltage of the plurality of second-phase windings is consistent; the phase relationship of the current or voltage of the plurality of third-phase windings is consistent. The phases of the first-phase winding, the second-phase winding and the third-phase winding are different, that is, three-phase currents are respectively passed through the first-phase winding, the second-phase winding and the third-phase winding, and the phase angles of the currents of the three phases are staggered by 120°.

[0060] It is understandable that in some embodiments, the first phase winding may be a U phase winding, the second phase winding may be a V phase winding, and the third phase winding may be a W phase winding. The winding methods and specific structures of the first phase winding, the second phase winding, and the third phase winding are the same, and only differ in phase.

[0061] In some embodiments, the windings 113 are connected in a star connection, which is also called a Y connection. In this connection method, the ends of the three windings 113 are connected together to form a common point, and then three end wires are led out from the beginnings of the three windings 113.

[0062] Specifically, in some embodiments, the tail ends 1133 (ends) of the first phase winding, the second phase winding, and the third phase winding are all electrically connected to a busbar 15, that is, the tail ends 1133 of the first phase winding, the second phase winding, and the third phase winding are connected together to form a common point (star common end); the first end 1131 (starting end) of the first phase winding, the second phase winding, and the third phase winding are respectively electrically connected to the three-phase power supply 30. In the embodiment of the present application, the winding 113 can be divided into multiple groups, and the multiple groups of windings 113 are connected in parallel, and each group of windings 113 includes a first phase winding, a second phase winding, and a third phase winding.

[0063] The first busbar assembly 13 is arranged in the inner cavity 110 of the stator core 111. In this way, the arrangement of the first busbar assembly 13 will not increase the size of the stator device 10 in the axial direction X, and the space of the inner cavity 110 of the stator core 11 is fully utilized. While not interfering with other structures, the size of the stator device 10 in the axial direction X is reduced, which is conducive to miniaturization of the stator device 10 and the motor 100.

[0064] Please combine Figure 4 In some embodiments, the first busbar assembly 13 includes a covering 131 and a plurality of busbars 132. The covering 131 is disposed in the inner cavity 110 of the stator core 111. The plurality of busbars 132 are injection molded in the covering 131 and insulated from each other, and each busbar 132 is used to be connected to the head end 1131 of the same-phase winding 113.

[0065] Specifically, in some embodiments, the covering member 131 may be made of insulating material, which can prevent the current on the busbar 132 from flowing through the stator core 111 and causing a short circuit in the stator device 10, thereby improving the stability and reliability of the stator device 10; on the other hand, it can prevent the current from flowing between the stator core 111 and the busbar 132 and causing unnecessary energy loss, thereby improving the working efficiency of the stator device 10. It should be noted that in some embodiments, the insulating material includes but is not limited to plastic, rubber, glass or mica.

[0066] In some embodiments, the busbar 132 can be formed into an integral structure with the covering member 131 through an injection molding process. For example, first, injection molding is performed to form a basic structure of the covering member 131, and an installation space is reserved at a position corresponding to the busbar 132 on the basic structure; then, the busbar 132 is set in the installation space; then, injection molding is performed again to completely wrap the busbar 132 with the same material as the basic structure, so that the busbar 132 is embedded in the covering member 131. It can be understood that the above-mentioned combination of the busbar 132 and the covering member 131 is only an exemplary description. In other embodiments, the combination of the busbar 132 and the covering member 131 can also be in other forms, which are not illustrated one by one here.

[0067] Furthermore, in some embodiments, the first busbar assembly 13 further includes a plurality of clamping terminals 133 , which are disposed on a side of the covering member 131 away from the core assembly 11 . The clamping terminals 133 are used to connect the winding 113 and the busbar 132 .

[0068] In some embodiments, the first busbar assembly 13 is a copper busbar, which can ensure the current carrying capacity of the first busbar assembly 13, prevent the first busbar assembly 13 from being damaged by overheating, and improve the working stability and reliability of the stator device 10. Specifically, in some embodiments, when the first busbar assembly 13 is a copper busbar, the busbar 132 and / or the clamping terminal 133 can be made of copper busbar or other materials with good conductivity.

[0069] In some embodiments, the busbar 132 and the clamping terminal 133 are an integral structure, that is, the busbar 132 and the clamping terminal 133 are made in an integral molding manner. In other embodiments, the busbar 132 and the clamping terminal 133 are separately arranged, that is, the busbar 132 and the clamping terminal 133 are two different structures, and the busbar 132 and the clamping terminal 133 can be combined together by a detachable connection method or a non-detachable connection method. The detachable connection method includes but is not limited to threaded connection or snap connection, etc.; the non-detachable connection method includes but is not limited to welding or bonding, etc.

[0070] In some embodiments, the second busbar assembly 15 includes a plurality of busbars 151 , and the plurality of busbars 151 are arranged at intervals along the circumferential direction.

[0071] Specifically, multiple busbars 151 are arranged at intervals along the circumferential direction, that is, the busbars 151 are not a complete ring, but multiple busbars 151 are installed together in a ring shape at the end of the core assembly 11 in the axial direction X. This can improve the material utilization rate of the busbars 151 and reduce the material cost of the busbars 151, thereby reducing the production cost of the motor 100 and improving the product competitiveness of the motor 100.

[0072] In some embodiments, the second busbar assembly 15 includes a PCB busbar. Specifically, the busbar 151 can be made of a printed circuit board (PCB), so that the current carrying requirements of the stator device 10 can be met while reducing the size of the stator device 10 in the axial direction X, thereby facilitating the miniaturization of the stator device 10 and the motor 100. It is understandable that the sum of the currents on the multiple busbars 151 is equal to the current on the first busbar assembly 13.

[0073] In some embodiments, the thickness of the busbar 151 in the axial direction X of the stator core 111 is [1.5 mm, 3.0 mm]. Specifically, in some embodiments, in the axial direction X of the stator core 111, the thickness of the busbar 151 can be any one of 1.5 mm, 1.7 mm, 1.9 mm, 2.0 mm, 2.2 mm, 2.4 mm, 2.6 mm, 2.8 mm and 3.0 mm or any value between any two values.

[0074] If the thickness of the busbar 151 is less than 1.5 mm, the current carrying capacity of the busbar 151 is poor. During the operation of the stator device 10, the busbar 151 is easily damaged by overheating, which affects the normal operation of the stator device 10; if the thickness of the busbar 151 is greater than 3.0 mm, the size of the busbar 151 in the axial direction X is large, which will cause the size of the stator device 10 in the axial direction X to be too large, which is not conducive to the miniaturization of the motor 100. In the embodiment of the present application, the thickness of the busbar 151 is [1.5 mm, 3.0 mm], which can ensure the current carrying capacity of the busbar 151 on the one hand, prevent the busbar 151 from being damaged by overheating during the operation of the stator device 10, and ensure the normal operation of the stator device 10; on the other hand, it can reduce the size of the stator device 10 in the axial direction X, which is conducive to the miniaturization of the stator device 10 and the motor 100. In addition, the thickness of the busbar 151 is [1.5 mm, 3.0 mm], which can also ensure the structural strength of the busbar 151 and reduce the possibility of collision damage to the busbar 151 during the operation of the stator device 10, thereby further improving the stability and reliability of the stator device 10.

[0075] In some embodiments, the first busbar assembly 13 is connected to the head end 1131 of the winding 113, and the second busbar assembly 15 is connected to the tail end 1133 of the winding 113. In other embodiments, the first busbar assembly 13 is connected to the tail end 1133 of the winding 113, and the second busbar assembly 15 is connected to the head end 1131 of the winding 113. The embodiments of the present application are described by taking the example that the first busbar assembly 13 is connected to the head end 1131 of the winding 113, and the second busbar assembly 15 is connected to the tail end 1133 of the winding 113.

[0076] In the stator device 10 of the embodiment of the present application, the first bus bar assembly 13 is arranged in the inner cavity 110 of the stator core 111, and the second bus bar assembly 15 is installed at the end of the core assembly 11 in the axial direction X. One of the first bus bar assembly 13 and the second bus bar assembly 15 is connected to the head end 1131 of the winding 113, and the other is connected to the tail end 1133 of the winding 113. Therefore, the first bus bar assembly 13 can make full use of the space of the inner cavity 110 of the stator core 111, so as to reduce the size of the stator device 10 in the axial direction X, which is conducive to the miniaturization of the stator device 10 and the motor 100.

[0077] In addition, when the motor 100 is a contour motor, the setting of the stator device 10 in the embodiment of the present application can also reduce the space size occupied by the motor 100 in the wheel 300, reduce the possibility of interference between the motor 100 and other components, and provide more space for the integrated layout of other components.

[0078] The stator device 10 is further described below with reference to the accompanying drawings.

[0079] See also Figure 2 and Figure 3 In some embodiments, the plurality of card wire terminals 133 include a plurality of first terminals, a plurality of second terminals, and a plurality of third terminals, the first terminal is used to connect to the head end of the first phase winding, the second terminal is used to connect to the head end of the second phase winding, and the third terminal is used to connect to the head end of the third phase winding. The plurality of busbars 132 include a first busbar, a second busbar, and a third busbar, the plurality of first terminals are connected to the first busbar, the plurality of second terminals are connected to the second busbar, and the plurality of third terminals are connected to the third busbar.

[0080] Specifically, in certain embodiments, when the three-phase power supply 30 is electrically connected to a plurality of busbars 132 and the three-phase current of the three-phase power supply 30 is transmitted to the plurality of busbars 132, the first terminal is capable of transmitting the current of the phase corresponding to the first phase winding to the first phase winding through the first busbar, the second terminal is capable of transmitting the current of the phase corresponding to the second phase winding to the second phase winding through the second busbar, and the third terminal is capable of transmitting the current of the phase corresponding to the third phase winding to the third phase winding through the third busbar. In this way, the first phase winding, the second phase winding and the third phase winding can respectively generate magnetic fields and interact with the magnetic field of the rotor device so that the rotor device moves relative to the stator device 10. Exemplarily, when the first phase winding is a U-phase winding, the second phase winding is a V-phase winding, and the third phase winding is a W-phase winding, the first terminal can transmit the U-phase current to the first phase winding through the first bus, the second terminal can transmit the V-phase winding to the second phase winding through the second bus, and the third terminal can transmit the W-phase current to the third phase winding through the third bus.

[0081] Please combine Figure 4 In some embodiments, the first busbar assembly 13 further includes a three-phase terminal 135, one end of which is electrically connected to the plurality of busbars 132, and the other end of which is suitable for being electrically connected to the three-phase power supply 30. It should be noted that in some embodiments, the three-phase terminal 135 can be made of copper busbar or other materials with good conductivity, so that the current carrying capacity of the three-phase terminal 135 can be ensured, the three-phase terminal 135 can be prevented from being damaged by overheating, and the working stability and reliability of the stator device 10 can be improved.

[0082] Specifically, in some embodiments, one end of the three-phase terminal 135 is provided with a covering 131 and electrically connected to the bus 132, and the other end is suitable for being electrically connected to the three-phase power supply 30, so that the three-phase terminal 135 can transmit the three-phase current to the bus 132. In some embodiments, the three-phase terminal 135 and the bus 132 are an integral structure, that is, the three-phase terminal 135 and the bus 132 are made in an integral molding manner. In other embodiments, the three-phase terminal 135 and the bus 132 are separately arranged, that is, the three-phase terminal 135 and the bus 132 are two different structures, and the three-phase terminal 135 and the bus 132 can be combined together by a detachable connection method or a non-detachable connection method. The detachable connection method includes, but is not limited to, a threaded connection or a snap connection, etc.; the non-detachable connection method includes, but is not limited to, welding or bonding, etc.

[0083] Further, in some embodiments, the three-phase terminal 135 includes a first phase terminal 1351, a second phase terminal 1353, and a third phase terminal 1355. The first phase terminal 1351 is connected to the first busbar. The second phase terminal 1353 is connected to the second busbar. The third phase terminal 1355 is connected to the third busbar.

[0084] Specifically, in some embodiments, the three-phase power supply 30 includes a first phase terminal 31, a second phase terminal 33, and a third phase terminal 35. When the first phase terminal 31 is a U-phase terminal, the second phase terminal 33 is a V-phase terminal, and the third phase terminal 35 is a W-phase terminal, the U-phase current can flow to the first phase terminal 1351 through the first phase terminal 31, and flow to the first busbar through the first phase terminal 1351; the V-phase current can flow to the second phase terminal 1353 through the second phase terminal 33, and flow to the second busbar through the second phase terminal 1353; the W-phase current can flow to the third phase terminal 1355 through the third phase terminal 35, and flow to the third busbar through the third phase terminal 1355.

[0085] See also Figure 2 In some embodiments, the stator device 10 may further include a bracket 17 , the bracket 17 includes a base 171 and a peripheral wall 173 disposed on the base 171 , and the peripheral wall 173 penetrates the inner cavity 110 of the stator core 111 .

[0086] Among them, the bracket 17 is a structure for installing the core assembly 11 and the first busbar assembly 13. The material of the bracket 17 includes metal materials and non-metal materials, and the metal materials include but are not limited to aluminum, iron, steel or aluminum alloy, and the non-metal materials include but are not limited to plastic. In one example, the bracket 17 can be made of metal material, which can improve the structural strength of the bracket 17 on the one hand, prevent the bracket 17 from being damaged by collision during the operation of the stator device 10, and improve the stability and reliability of the stator device 10; on the other hand, it can improve the connection strength between the bracket 17 and the stator core 111, and prevent the bracket 17 from separating from the stator core 111. In another example, the bracket 17 can be made of non-metal material, which can make the weight of the bracket 17 lighter, thereby facilitating the lightweight of the stator device 10.

[0087] Furthermore, please combine Figure 6 and Figure 7 In some embodiments, a matching portion 1113 is provided on the inner side of the side wall of the stator core 111. A limiting portion 177 is provided on the outer side of the peripheral wall 173, and the limiting portion 177 cooperates with the matching portion 1113 to limit the rotation of the stator core 111 relative to the bracket 17 along the circumferential direction.

[0088] Specifically, in some embodiments, one of the matching portion 1113 and the limiting portion 177 may be a protrusion, and the other of the matching portion 1113 and the limiting portion 177 may be a groove. When the peripheral wall 173 penetrates the inner cavity 110 of the stator core 111, the protrusion can extend into the groove to limit the rotation of the stator core 111 relative to the bracket 17 in the circumferential direction, thereby ensuring the stability of the stator core 111 installed on the bracket 17, and further ensuring the normal operation of the stator device 10. In some embodiments, the matching portion 1113 includes one, and correspondingly, the limiting portion 177 includes one. In other embodiments, the matching portion 1113 includes at least two, and the at least two matching portions 1113 are distributed at intervals along the circumferential direction on the inner side of the side wall of the stator core 111, and correspondingly, the limiting portion 177 includes at least two, and the at least two limiting portions 177 correspond to the at least two matching portions 1113.

[0089] It is understandable that, in some embodiments, the stator core 111 and the bracket 17 may be connected together in a detachable or non-detachable manner to limit the movement of the stator core 111 relative to the bracket 17 along the axial direction X. The detachable connection includes but is not limited to threaded connection or snap connection, etc.; the non-detachable connection includes but is not limited to welding, bonding or interference connection, etc.

[0090] See also Figure 2 and Figure 6 In some embodiments, the base 171 is provided with a through-mounting hole 1711, and the three-phase terminal 135 is electrically connected to the three-phase power supply 30 through the mounting hole 1711. Therefore, compared with the mounting hole 1711 being provided on the peripheral wall 173, and the three-phase terminal 135 being electrically connected to the three-phase power supply 30 through the mounting hole 1711, the mounting hole 1711 being provided on the base 171 can facilitate the electrical connection between the three-phase terminal 135 and the three-phase power supply 30, thereby ensuring the assembly efficiency of the stator device 10; on the other hand, it can prevent the three-phase power supply 30 from interfering with the core assembly 11, thereby ensuring the normal assembly of the stator device 10.

[0091] In some embodiments, the mounting hole 1711 includes one, and the mounting hole 1711 passes through the base 171, and the three-phase wiring terminals 135 are electrically connected to the three-phase power supply 30 through the mounting hole 1711. In other embodiments, the mounting hole 1711 includes three, and the three mounting holes 1711 pass through the base 171, and the three mounting holes 1711 correspond to the three-phase wiring terminals 135 respectively, and the three-phase wiring terminals 135 are electrically connected to the three-phase power supply 30 through the corresponding mounting holes 1711, thereby preventing the wiring terminals of the three-phase power supply 30 (such as the first phase terminal 31, the second phase terminal 33, and the third phase terminal 35) from being squeezed and worn in the mounting hole 1711 to cause damage, thereby ensuring the stability of the stator device 10.

[0092] Please combine Figure 4 In some embodiments, a first mounting seat 175 is disposed inside the peripheral wall 173. The first busbar assembly 13 further includes a second mounting seat 137 disposed inside the covering member 131, and the second mounting seat 137 cooperates with the first mounting seat 175 to connect the first busbar assembly 13 and the bracket 17.

[0093] Specifically, in some embodiments, the second mounting seat 137 can be disposed on the inner side of the covering member 1313. When the peripheral wall 173 is connected to the stator core 111, the second mounting seat 137 cooperates with the first mounting seat 175 to connect the first busbar assembly 13 and the bracket 17. The second mounting seat 137 and the first mounting seat 175 can be combined together by fasteners (such as screws, etc.) to achieve the connection between the first busbar assembly 13 and the bracket 17.

[0094] In some embodiments, the second mounting seat 137 and the covering member 1313 are integrally formed, that is, the second mounting seat 137 and the covering member 1313 are an integral structure. In other embodiments, the second mounting seat 137 and the covering member 1313 are separated, that is, the second mounting seat 137 and the covering member 1313 are two different structures, and the second mounting seat 137 and the covering member 1313 can be connected together in a detachable connection or a non-detachable connection. The detachable connection includes, but is not limited to, threaded connection or snap connection, etc.; the non-detachable connection includes, but is not limited to, welding or bonding, etc.

[0095] See also Figure 2 and Figure 7 In some embodiments, the core assembly 11 further includes an insulating frame 115, which is disposed between the stator core 111 and the winding 113 to insulate the stator core 111 and the winding 113, and the second bus assembly 15 is connected to the insulating frame 115. It should be noted that, in some embodiments, the insulating frame 115 can be made of insulating materials, including but not limited to plastic, rubber, glass or mica.

[0096] Among them, the setting of the insulating frame 115 can, on the one hand, prevent the current on the winding 113 from flowing through the stator core 111 and causing a short circuit problem in the stator device 10, thereby ensuring the stability and reliability of the stator device 10; on the other hand, it can prevent the current from flowing between the stator core 111 and the winding 113 and causing unnecessary energy loss, thereby improving the working efficiency of the stator device 10.

[0097] Please combine Figure 5In some embodiments, the busbar 15 is provided with a first connector 151 . The end of the insulating frame 115 in the axial direction X is provided with a second connector 1151 , which cooperates with the first connector 151 to connect the busbar 15 to the insulating frame 115 .

[0098] In some embodiments, one of the first connector 151 and the second connector 1151 is a column, and the other is a mounting hole. For example, the first connector 151 is a column, which protrudes and extends from the busbar 15 toward the insulating frame 115, and the second connector 1151 is a mounting hole, which can be a through hole or a blind hole. When the second connector 1151 cooperates with the first connector 151, that is, when the column extends into the mounting hole, the busbar 15 is connected to the insulating frame 115. For another example, the first connector 151 is a mounting hole, which can be a blind hole, and the second connector 1151 is a column, which protrudes and extends from the insulating frame 115 toward the busbar 15. When the second connector 1151 cooperates with the first connector 151, that is, when the column extends into the mounting hole, the busbar 15 is connected to the insulating frame 115.

[0099] In other embodiments, the first connector 151 and the second connector 1151 are both mounting holes, and the fasteners sequentially pass through the first connector 151 and are locked to the second connector 1151. Specifically, in some examples, the fasteners may be bolts or screws, and when the fasteners pass through the first connector 151 and are locked to the second connector 1151, the busbar 15 is connected to the insulating frame 115.

[0100] In some embodiments, a wiring notch 1153 is defined on the insulating frame 115 , and the tail end 1133 of the winding 113 passes through the wiring notch 1153 and is electrically connected to the second bus assembly 15 .

[0101] Specifically, in some embodiments, the wiring notch 1153 can be disposed on the inner side of the insulating frame 115 in the radial direction Y, so that the electrical connection between the tail end 1133 of the winding 113 and the second busbar assembly 15 can be facilitated, thereby improving the assembly efficiency of the stator device 10. In addition, the provision of the wiring notch 1153 can also prevent the insulating frame 115 from interfering with the electrical connection between the winding 113 and the second busbar assembly 15, thereby ensuring the normal assembly of the stator device 10 and ensuring the normal operation of the stator device 10.

[0102] See also Figure 2 In some embodiments, the winding 113 includes a multi-phase winding. In the embodiments of the present application, only the winding 113 including a three-phase winding (ie, a first phase winding, a second phase winding and a third phase winding) is used as an example for description.

[0103] See also Figure 2 and Figure 8 In some embodiments, one wire is wound around one stator tooth 1111 , and each phase winding 113 is formed by coils wound around at least two adjacent stator teeth 1111 connected in series.

[0104] Specifically, in some embodiments, a conductor is wound around a stator tooth 1111, that is, each stator tooth 1111 is wound separately. In this case, the coil on each stator tooth 1111 has two terminals, and the coils wound on at least two adjacent stator teeth 1111 can be connected in series through the second busbar assembly 15 to form a phase winding 113. For example, please combine Figure 8 In the case where a wire is wound around a stator tooth 1111, and each phase winding 113 is formed by three coils wound on the stator teeth 1111 connected in series, the three stator teeth 1111 are stator tooth 1, stator tooth 2 and stator tooth 3 in the circumferential direction, wherein the terminal B of the stator tooth 1 can be used as the head end 1131 of the winding 113, the terminal A of the stator tooth 1 is electrically connected to the terminal C of the stator tooth 2, the terminal D of the stator tooth 2 is electrically connected to the terminal F of the stator tooth 3, and the terminal E of the stator tooth 3 can be used as the tail end 1133 of the winding 113. In this way, the coils wound on the stator teeth 1, the stator teeth 2 and the stator teeth 3 are connected in series to form a phase winding 113.

[0105] Furthermore, in certain embodiments, when a wire is wound around a stator tooth 1111 and each phase winding 113 is formed by coils wound on at least two adjacent stator teeth 1111 connected in series, the second bus assembly is electrically connected to the windings 113 on the adjacent stator teeth 1111 so that the windings 113 on the adjacent stator teeth 1111 are connected in series.

[0106] Specifically, in some embodiments, when a wire is wound around a stator tooth 1111 and each phase winding 113 is formed by three coils wound on the stator teeth 1111 connected in series, the three stator teeth 1111 are stator tooth 1, stator tooth 2 and stator tooth 3 in the circumferential direction, wherein the terminal B of stator tooth 1 can be used as the head end 1131 of the winding 113, the terminal A of stator tooth 1 and the terminal C of stator tooth 2 are electrically connected through a busbar 15, the terminal D of stator tooth 2 and the terminal F of stator tooth 3 are electrically connected through a busbar, and the terminal E of stator tooth 3 can be used as the tail end 1133 of the winding 113, so that the coils wound on stator teeth 1, stator teeth 2 and stator teeth 3 are connected in series to form a phase winding 113.

[0107] Furthermore, please combine Figure 5In some embodiments, in the radial direction Y of the stator core 111, the second busbar assembly 15 includes a first side 153 and a second side 155 opposite to each other, and a wire clamping groove 157 is provided on the first side 153 of the second busbar assembly 15 and the second side 155 of the second busbar assembly 15. The wire clamping groove 157 on the first side 153 of the second busbar assembly 15 is electrically connected to the tail end 1133 of the winding 113, and the wire clamping groove 157 on the second side 155 of the busbar 15 is electrically connected to the winding 113 on at least two adjacent stator teeth 1111.

[0108] Specifically, in some embodiments, the wire clamping slot 157 can be electrically connected to the tail end 1133 of the winding 113 by copper coating, and can be electrically connected to the terminal of the winding 113 on two adjacent stator teeth 1111 by copper coating. As can be seen from the above, when a wire is wound on a stator tooth 1111, and each phase winding 113 is formed by three coils wound on the stator teeth 1111 connected in series, the terminal A of the stator tooth 1 and the terminal C of the stator tooth 2 can be electrically connected through the wire clamping slot 157 on the second side 155 of the second bus assembly 15, and the terminal D of the stator tooth 2 and the terminal F of the stator tooth 3 can be electrically connected through the wire clamping slot 157 on the second side 155 of the second bus assembly 15.

[0109] See also Figure 2 and Fig. 9 In other embodiments, each phase winding 113 is formed by continuously winding a wire around at least two adjacent stator teeth 1111 .

[0110] Specifically, in some embodiments, each phase winding 113 is formed by continuously winding a wire around at least two adjacent stator teeth 1111, that is, each phase winding 113 is a single-wire series winding 113. At this time, the coils on at least two adjacent stator teeth 1111 have a total of two terminal ends (i.e., the tail end 1133 of the winding 113 and the head end 1131 of the winding 113), which can reduce the number of connection terminals and effectively improve the assembly efficiency of the stator device 10.

[0111] Further, in some embodiments, in the radial direction Y of the stator core 111, the second busbar assembly 15 includes a first side 153 and a second side 155 opposite to each other, and a plurality of wire-locking grooves 157 are provided on the first side 153 of the second busbar assembly 15 and / or the second side 155 of the second busbar assembly 15, and the wire-locking grooves 157 are electrically connected to the tail end 1133 of the winding 113. Specifically, in some embodiments, the wire-locking grooves 157 can be electrically connected to the tail end 1133 of the winding 113 in a copper-clad manner. Exemplarily, in the case where one busbar 15 corresponds to one first-phase winding, one second-phase winding, and one third-phase winding, the wire-locking grooves 157 can include three, and the three wire-locking grooves 157 correspond to and are electrically connected to the tail end 1133 of the first-phase winding, the tail end 1133 of the second-phase winding, and the tail end 1133 of the third-phase winding, respectively.

[0112] In some embodiments, a plurality of wire clamping grooves 157 are provided on the first side 153 of the second bus assembly 15 and the second side 155 of the second bus assembly 15. The plurality of wire clamping grooves 157 respectively correspond to and are electrically connected to the tail ends 1133 of the multi-phase windings. This can improve the current carrying capacity of the busbar 15, reduce the heat generated by the busbar 15 during the operation of the stator device 10, and ensure the stability and reliability of the stator device 10.

[0113] The technical features of the above-mentioned embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification. At the same time, other implementation methods can be derived from the above-mentioned embodiments, so that structural and logical replacements and changes can be made without departing from the scope of this disclosure.

[0114] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. A stator device (10), characterized in that: include: An iron core assembly (11), the iron core assembly (11) comprising an annular stator iron core (111) and a winding (113), the winding (113) being arranged on the stator iron core (111); A first busbar assembly (13) and a second busbar assembly (15), wherein the first busbar assembly (13) is arranged in the inner cavity (110) of the stator core (111), and the second busbar assembly (15) is installed at an axial end of the core assembly (11); One of the first busbar component (13) and the second busbar component (15) is connected to the head end (1131) of the winding (113), and the other is connected to the tail end (1133) of the winding (113).

2. The stator device (10) according to claim 1, characterized in that The first busbar assembly (13) is connected to the head end (1131) of the winding (113), and the second busbar assembly (15) is connected to the tail end (1133) of the winding (113).

3. The stator device (10) according to claim 1 or 2, characterized in that: The winding (113) comprises a multi-phase winding, and the first busbar assembly (13) comprises: A covering member (131), the covering member (131) being disposed in the inner cavity (110) of the stator core (111); and A plurality of busbars (132) are injection-molded in the covering member (131) in an insulated manner from one another, and each busbar (132) is used to be connected to a head end (1131) of the same-phase winding (113).

4. The stator device (10) according to claim 3, characterized in that The first busbar assembly (13) further comprises a plurality of wire clamping terminals (133), wherein the wire clamping terminals (133) are arranged on a side of the covering member (131) away from the core assembly (11); The clamping terminal (133) is used to connect the winding (113) and the busbar (132).

5. The stator device (10) according to claim 4, characterized in that The winding (113) comprises a plurality of first phase windings connected in parallel to each other, a plurality of second phase windings connected in parallel to each other, and a plurality of third phase windings connected in parallel to each other; The plurality of clamping wire terminals (133) include a plurality of first terminals, a plurality of second terminals and a plurality of third terminals, wherein the first terminal is used to be connected to the head end of the first phase winding, the second terminal is used to be connected to the head end of the second phase winding, and the third terminal is used to be connected to the head end of the third phase winding; The plurality of busbars (132) include a first busbar, a second busbar and a third busbar, the plurality of the first terminals are connected to the first busbar, the plurality of the second terminals are connected to the second busbar, and the plurality of the third terminals are connected to the third busbar.

6. The stator device (10) according to claim 3, characterized in that The first busbar assembly (13) further comprises: A three-phase wiring terminal (135), one end of which is electrically connected to the plurality of current collectors (132) respectively, and the other end of which is suitable for being electrically connected to a three-phase power source (30).

7. The stator device (10) according to claim 5, characterized in that The first busbar assembly (13) further comprises: A three-phase wiring terminal (135), wherein the three-phase wiring terminal (135) is suitable for being electrically connected to a three-phase power source (30); The three-phase terminal (135) comprises: A first phase connection terminal (1351), the first phase connection terminal (1351) being connected to a first busbar of the busbar (132); A second phase connection terminal (1353), the second phase connection terminal (1353) being connected to a second busbar of the busbar (132); and A third phase terminal (1355), the third phase terminal (1355) is used to connect to the third busbar of the busbar (132).

8. The stator device (10) according to claim 6, characterized in that The stator device (10) further comprises a bracket (17), the bracket (17) comprising a base (171) and a peripheral wall (173) arranged on the base (171), the peripheral wall (173) passing through the inner cavity (110) of the stator core (111), the base (171) being provided with a penetrating mounting hole (1711), and the three-phase terminal (135) being electrically connected to the three-phase power supply (30) via the mounting hole (1711).

9. The stator device (10) according to claim 3, characterized in that The stator device (10) further comprises a bracket (17), the bracket (17) comprising a base (171) and a peripheral wall (173) arranged on the base (171), the peripheral wall (173) passing through the inner cavity (110) of the stator core (111), and a first mounting seat (175) being arranged on the inner side of the peripheral wall (173); the first busbar assembly (13) further comprises: A second mounting seat (137), wherein the second mounting seat (137) is disposed on the inner side of the covering member (131), and the second mounting seat (137) cooperates with the first mounting seat (175) to connect the first busbar assembly (13) and the bracket (17).

10. The stator device (10) according to claim 1, characterized in that The core assembly (11) further comprises: An insulating frame (115) is disposed between the stator core (111) and the winding (113) to insulate the stator core (111) and the winding (113), and the second busbar assembly (15) is connected to the insulating frame (115).

11. The stator device (10) according to claim 10, characterized in that The second busbar assembly (15) comprises a plurality of busbars (151), and the plurality of busbars (151) are arranged at intervals along the circumferential direction.

12. The stator device (10) according to claim 10, characterized in that A first connecting piece (1511) is provided on the busbar (151) of the second busbar assembly (15); a second connecting piece (1151) is provided at the axial end of the insulating frame (115), and the second connecting piece (1151) cooperates with the first connecting piece (1511) to connect the busbar (151) to the insulating frame (115).

13. The stator device (10) according to claim 12, characterized in that One of the first connecting member (1511) and the second connecting member (1151) is a column, and the other is a mounting hole; or The first connecting member (1511) and the second connecting member (1151) are both mounting holes, and the fasteners pass through the first connecting member (1511) in sequence and are locked to the second connecting member (1151).

14. The stator device (10) according to claim 10, characterized in that The insulating frame (115) is provided with a wiring notch (1153), and the tail end (1133) of the winding (113) passes through the wiring notch (1153) and is electrically connected to the second busbar assembly (15).

15. The stator device (10) according to claim 1, characterized in that A matching portion (1113) is provided on the inner side of the side wall of the stator core (111); the stator device (10) further comprises: A bracket (17), the bracket (17) comprising a base (171) and a peripheral wall (173) arranged on the base (171), the peripheral wall (173) passing through an inner cavity (110) of the stator core (111) and connected to the stator core (111), a limiting portion (177) being provided on the outer side of the peripheral wall (173), the limiting portion (177) cooperating with the matching portion (1113) to limit the rotation of the stator core (111) relative to the bracket (17) in the circumferential direction.

16. The stator device (10) according to claim 1, characterized in that The stator core (111) comprises a plurality of stator teeth (1111) arranged in a circumferential direction, the winding (113) is wound around the stator teeth (1111), and the winding (113) comprises a multi-phase winding (113); A conducting wire is wound around one of the stator teeth (1111), and each phase winding (113) is formed by coils wound around at least two adjacent stator teeth (1111) connected in series; or Each phase winding (113) is formed by continuously winding a conducting wire around at least two stator teeth (1111).

17. The stator device (10) according to claim 1, characterized in that In the radial direction of the stator core (111), the second busbar assembly (15) comprises a first side (153) and a second side (155) which are opposite to each other, and a plurality of wire-holding grooves (157) are provided on the first side (153) of the second busbar assembly (15) and / or the second side (155) of the second busbar assembly (15), and the wire-holding grooves (157) are electrically connected to the tail end (1133) of the winding (113).

18. The stator device according to claim 1 or 2, characterized in that: The first busbar assembly (13) is a copper busbar, and the second busbar assembly (15) comprises a PCB busbar.

19. A motor (100), characterized in that: include: A stator device (10) as claimed in any one of claims 1 to 18.

20. The electric machine (100) according to claim 19, characterized in that The motor (100) further comprises: A rotor device is arranged outside the stator device (10) and is capable of moving relative to the stator device (10).

21. A vehicle (1000), characterized in that: include: The electric machine (100) as claimed in claim 19 or 20.

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