Bus bar, bus bar, stator assembly, motor and vehicle

Abstract

The utility model relates to a confluence piece, a busbar, a stator assembly, a motor and a vehicle. The confluence piece comprises a body, a first connecting part and a second connecting part. The body is of an arc-shaped structure. The first connecting part is located on the peripheral side of the body, and at least part of the first connecting part is opposite to the body in the radial direction of the body; two ends of the second connecting part are respectively connected with the body and the first connecting part; the first connecting parts and the second connecting parts are multiple, and the first connecting parts are arranged in the circumferential direction of the body at intervals and correspond to the second connecting parts in a one-to-one mode. According to the technical scheme, at least part of the first connecting part and the body can share the same part of axial space, and then the axial size of the confluence piece can be reduced. Thus, the axial space, occupied by the busbar, of the motor can be reduced, the axial size of the motor is small, and the operability of installation and layout of the motor can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of motors, and in particular, to a busbar component, a busbar, a stator assembly, a motor, and a vehicle. Background Art

[0002] A motor is a device that converts electrical energy into mechanical energy. The stator assembly is one of the important components of the motor. It works together with the rotor of the motor to achieve the conversion between electrical energy and mechanical energy. The stator assembly includes a stator component and a busbar disposed at one end of the stator component. The busbar includes a skeleton and a plurality of busbar components disposed on the skeleton. Generally, the busbar component includes a body, a confluence terminal connected to the body, and a connection terminal. Among them, the connection terminal is connected to the enameled wire in the stator component, the confluence terminal is connected to the motor electronic control board, and the body connects the confluence terminal and the connection terminal to play a role in current collection.

[0003] Currently, along the axial direction of the busbar, the connection terminal is located on one side of the body. This results in a relatively large axial dimension of the busbar component, thereby causing the busbar to occupy a relatively large amount of axial space in the motor, making the axial dimension of the motor relatively large. Thus, it is difficult to install and layout the motor. Utility Model Content

[0004] Embodiments of the present application provide a busbar component, a busbar, a stator assembly, a motor, and a vehicle, which can reduce the size of the axial space occupied by the busbar component in the motor to improve the above technical problems.

[0005] To achieve the above object, according to the first aspect of the present application, there is provided a busbar component, which includes a body and a connection terminal; the connection terminal includes a first connection portion and a second connection portion; the body is in an arc structure; the first connection portion is located on the outer peripheral side of the body and is spaced apart from the body; along the radial direction of the body, at least a part of the first connection portion is disposed opposite to the body; both ends of the second connection portion are respectively connected to the body and the first connection portion, and along the axis of the cylinder where the body is located, the second connection portion is located at one end of the body; wherein, there are a plurality of connection terminals, and the plurality of connection terminals are spaced apart along the circumferential direction of the body.

[0006] Optionally, the second connection portion is in a U-shaped structure, the U-shaped surface of the U-shaped structure is parallel to the axis of the cylinder where the body is located, and both ends of the U-shaped structure are respectively connected to the body and the first connection portion.

[0007] Optionally, a through groove is provided on the side of the first connection portion facing away from the body, and the extending direction of the through groove is parallel to the axis of the cylinder where the body is located.

[0008] Optionally, the through groove is a V-shaped groove.

[0009] Optionally, the included angle between the two side walls of the through groove is D, satisfying: 30° ≤ D ≤ 60°.

[0010] Optionally, a fillet is provided at the connection between the two side walls of the through groove.

[0011] Optionally, along the radial direction of the body, the first connecting portion is entirely disposed opposite to the body.

[0012] Optionally, along the axial direction of the body, the first connecting portion has a height dimension B, and the body has a height dimension B', satisfying: B = B'.

[0013] Optionally, along the radial direction of the body, the minimum distance between the first connecting portion and the body is A, satisfying: 2.0 mm ≤ A ≤ 9.5 mm.

[0014] Optionally, the busbar assembly further includes a confluence terminal, and one end of the confluence terminal is connected to the body.

[0015] According to the second aspect of the present application, a busbar is provided. The busbar includes an insulating skeleton and the aforementioned busbar assembly; the insulating skeleton is in an annular structure; there are multiple busbar assemblies, and the multiple busbar assemblies are arranged on the insulating skeleton at intervals along the radial direction of the insulating skeleton, and the first connecting portion is located on the outer peripheral side of the insulating skeleton; wherein, the minimum distance between the first connecting portion of each busbar assembly and the body is A, and the distances A of the respective busbar assemblies are different.

[0016] Optionally, the first connecting portions of the multiple busbar assemblies are arranged at intervals along the same circumferential line of the insulating skeleton.

[0017] According to the third aspect of the present application, a stator assembly is provided. The stator assembly includes a stator component and the aforementioned busbar, the busbar is coaxially arranged with the stator component, and the enameled wire of the stator component is connected to the first connecting portion.

[0018] Optionally, along the axial direction of the insulating skeleton, the insulating skeleton is inserted into the insulating frame of the stator component.

[0019] Optionally, a limiting block is provided at one end of the insulating skeleton close to the stator component, and a limiting groove is provided on one side of the insulating frame of the stator component close to the insulating skeleton. Along the axial direction of the insulating skeleton, the limiting block is inserted into the limiting groove.

[0020] Optionally, a first positioning groove is provided on the outer peripheral surface of the insulating skeleton, and a second positioning groove is provided on the outer peripheral surface of the stator component. The first positioning groove and the second positioning groove are located on the same radial direction of the insulating skeleton.

[0021] Optionally, a boss is provided at one end of the insulating skeleton close to the stator component. Along the axial direction of the insulating skeleton, the boss abuts against the insulating frame of the stator component, so that the insulating skeleton and the enameled wire package of the stator component are arranged at intervals along the axial direction of the insulating skeleton.

[0022] According to the third aspect of the present application, a motor is provided. The motor includes the aforementioned stator assembly.

[0023] According to a fourth aspect of the present application, a vehicle is provided, which includes the aforementioned motor.

[0024] In the bus bar of the embodiment of the present application, through the above technical solution, at least the following technical effects are obtained:

[0025] In the present application, by disposing the first connecting portion on the outer peripheral side of the body and making at least a part of the first connecting portion disposed opposite to the body, at least a part of the first connecting portion and the body can share the same part of the axial space, thereby reducing the axial dimension of the bus bar. In this way, the axial space of the motor occupied by the bus bar can be reduced, making the axial dimension of the motor smaller, and thus improving the ease of operation of the motor installation layout.

[0026] Other features and advantages of the present application will be described in detail in the subsequent specific implementation part. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can also obtain other drawings based on these drawings without creative efforts.

[0028] In order to more fully understand the present application and its beneficial effects, the following description will be made in conjunction with the drawings, where the same reference numerals in the following description represent the same parts.

[0029] Figure 1 is a schematic diagram of the overall structure of the bus bar provided in an exemplary embodiment of the present disclosure;

[0030] Figure 2 is Figure 1 an enlarged schematic diagram of part A in

[0031] Figure 3 is Figure 1 an enlarged schematic diagram of part B in

[0032] Figure 4 is a top view of the connection terminal provided in an exemplary embodiment of the present disclosure;

[0033] Figure 5 is a height schematic diagram of the first connecting portion and the body provided in an exemplary embodiment of the present disclosure;

[0034] Figure 6 is a schematic diagram of the overall structure of the bus bar provided in an exemplary embodiment of the present disclosure;

[0035] Figure 7It is a schematic diagram of the overall structure of another bus bar provided in an exemplary embodiment of the present disclosure;

[0036] Figure 8 It is a schematic diagram of the overall structure of yet another bus bar provided in an exemplary embodiment of the present disclosure;

[0037] Figure 9 It is a schematic diagram of the layout structure of multiple bus bars provided in an exemplary embodiment of the present disclosure;

[0038] Figure 10 It is a schematic diagram of the overall structure of a stator assembly provided in an exemplary embodiment of the present disclosure;

[0039] Figure 11 It is a schematic diagram of the overall structure of a stator component provided in an exemplary embodiment of the present disclosure;

[0040] Figure 12 It is a side view structure schematic diagram of an insulating skeleton provided in an exemplary embodiment of the present disclosure;

[0041] Figure 13 It is a schematic diagram of the overall structure of an insulating skeleton provided in an exemplary embodiment of the present disclosure;

[0042] Description of reference numerals:

[0043] 1. Stator assembly;

[0044] 10. Bus bar;

[0045] 11. Bus bar; 111. Body; 1111. First end face; 112. First connecting portion; 1121. Second end face; 1122. Through groove; 1123. Chamfer; 113. Second connecting portion; 114. Confluence terminal;

[0046] 12. Insulating skeleton; 121. Limiting block; 122. First positioning groove; 123. Boss;

[0047] 20. Stator component; 201. Insulating frame; 202. Limiting groove; 203. Second positioning groove; 204. Enameled wire. Detailed implementation manners

[0048] Next, the technical solutions in the embodiments of the present application will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present application.

[0049] An embodiment of the present application provides a bus bar 11. Please refer to Figure 1 ,Figure 1 It is a schematic diagram of the overall structure of the bus bar 11 provided in an exemplary embodiment of the present disclosure.

[0050] Meanwhile, referring to Figure 2 and Figure 3 , the bus bar 11 includes a body 111 and connection terminals. The connection terminals include a first connection portion 112 and a second connection portion 113. The body 111 is an arc-shaped structure. The first connection portion 112 is located on the outer peripheral side of the body 111 and is spaced apart from the body 111. Along the radial direction of the body 111, the first connection portion 112 is at least partially disposed opposite to the body 111. Both ends of the second connection portion 113 are respectively connected to the body 111 and the first connection portion 112. Along the axis of the cylinder where the body 111 is located, the second connection portion 113 is located at one end of the body 111. Among them, there are multiple connection terminals. The multiple connection terminals are spaced apart along the circumferential direction of the body 111.

[0051] It can be understood that the bus bar 11 further includes a confluence terminal 114. The confluence terminal 114 is connected to the motor electronic control board. The first connection portion 112 is connected to the enameled wire in the stator assembly 20. The body 111 connects the confluence terminal 114 and the connection terminals, playing a role of current collection.

[0052] Among them, the body 111, the first connection portion 112, and the second connection portion 113 can be connected by welding, or can be formed by stamping a metal plate and then multi-layer bending to respectively form the body 111, the first connection portion 112, and the second connection portion 113.

[0053] The second connection portion 113 can be a bent structure, and it can be one of the following structures: U-shaped structure, S-shaped structure, C-shaped structure, L-shaped structure.

[0054] In addition, the body 111 is an arc-shaped structure, which can be a quasi-arc shape, or the overall contour is arc-shaped, and at the same time, the local part can be a wave structure, a sawtooth structure, or a bent structure.

[0055] In this embodiment, by disposing the first connection portion 112 on the outer peripheral side of the body 111 and making the first connection portion 112 at least partially disposed opposite to the body 111, the first connection portion 112 can at least partially share the same axial space as the body 111, and further, the axial dimension of the bus bar 11 can be reduced. In this way, the axial space of the motor occupied by the bus bar 10 can be reduced, making the axial dimension of the motor smaller, and thus the ease of operation of the motor installation layout can be improved.

[0056] In addition, by spacing the first connecting portion 112 from the body 111 and disposing the second connecting portion 113 at one end of the body 111, a receiving space can be formed between the first connecting portion 112 and the body 111. Thus, when the bus bar member 11 is applied to the bus bar 10, multiple bus bar members 11 can be stacked radially, such that the body 111 of the bus bar member 11 located on the outer side is between the first connecting portion 112 and the body 111 of the bus bar member 11 located on the inner side. In this way, on the one hand, compared with the axially stacked structure, the axial dimension of the bus bar 10 can be reduced in this embodiment. On the other hand, there is no need to configure a structure for insulating adjacent two bus bar members 11 axially, and only a structure for insulating adjacent two bus bar members 11 needs to be configured radially. Thus, while ensuring the conductive area of the bus bar 10, the axial height of the bus bar 10 can be further reduced.

[0057] In some embodiments, refer to Figure 2 , Figure 2 which Figure 1 is an enlarged schematic view of part A in

[0058] Specifically, along the axis of the cylinder where the body 111 is located, the body 111 has a first end face 1111, and the first connecting portion 112 has a second end face 1121. Two ends of the U-shaped structure are respectively connected to the first end face 1111 and the second end face 1121. Among them, the first end face 1111 and the second end face 1121 face the same direction.

[0059] Specifically, one end of the second connecting portion 113 is connected to the first end face 1111, and the other end is bent twice in the same direction. After each 90° bend, a U-shaped structure is formed and connected to the second end face 1121.

[0060] In this embodiment, through the above settings, it is beneficial to form each part of the bus bar member 11 by bending the same metal piece multiple times, thereby improving the integrity and structural reliability of the bus bar member 11 and reducing the difficulty.

[0061] In addition, the distance between the first connecting portion 112 and the body 111 can be adjusted by adjusting the radial dimension of the second connecting portion 113, thereby improving the adjustability of the distance to meet the requirements of different motors.

[0062] In another embodiment, the second connecting portion 113 is a Z-shaped structure. The first end face 1111 and the second end face 1121 are arranged opposite to each other. One end of the second connecting portion 113 is connected to the first end face 1111, and the other end is bent once in each of two opposite directions, and after each 90° bend, a Z-shaped structure is formed and connected to the second end face 1121.

[0063] In some embodiments, please refer to Figure 3 , Figure 3 is Figure 1 an enlarged schematic view of part B in. A through groove 1122 is provided on the side of the first connecting portion 112 facing away from the body 111. The extending direction of the through groove 1122 is parallel to the axis of the cylinder where the body 111 is located.

[0064] It can be understood that when the bus bar 11 is connected to the stator assembly 20, the enameled wire of the stator assembly 20 is located in the through groove 1122.

[0065] In this embodiment, by providing the through groove 1122 on the first connecting portion 112, on the one hand, it is convenient to clamp the enameled wire in the through groove 1122, and more welding materials can be accommodated through the through groove 1122, thereby improving the operability and reliability of the welding between the enameled wire and the first connecting portion 112, and reducing the connection looseness caused by vibration or thermal expansion; on the other hand, a larger contact area can be provided between the enameled wire and the first connecting portion 112, thereby improving the stability of current transmission between the first connecting portion 112 and the enameled wire.

[0066] In some embodiments, please refer to Figure 4 , Figure 4 is a top view of the first connecting portion 112 provided in an exemplary embodiment of the present disclosure. The through groove 1122 is a V-shaped groove, and the width of the groove opening of the through groove 1122 is smaller than the width of the groove bottom of the through groove 1122.

[0067] In this embodiment, by setting the through groove 1122 as a V-shaped groove, the enameled wire can be guided through the larger groove opening of the V-shaped groove, thereby improving the operability of the cooperation between the bus bar 10 and the stator assembly 20; and the enameled wire can be clamped by the smaller groove bottom of the V-shaped groove, thereby improving the operability of the welding between the enameled wire and the first connecting portion 112.

[0068] In some embodiments, please refer to Figure 4 , the included angle between the two side walls of the through groove 1122 is D, satisfying: 30° ≤ D ≤ 60°.

[0069] It can be understood that the included angle D between the two side walls of the through groove 1122 includes but is not limited to 30°, 32°, 33°, 35°, 36°, 37°, 37.6°, 39°, 40°, 42.6°, 43°, 45°, 47°, 49°, 50°, 51°, 52°, 52.3°, 54°, 56°, 58°, 59°, 60°.

[0070] In this embodiment, through the above limitations, it is possible to avoid the included angle being too small and affecting the cooperation between the through groove 1122 and the enameled wire, and also to avoid the included angle being too large and resulting in poor clamping of the through groove 1122 to the enameled wire. In this way, the ease of operation of the cooperation between the through groove 1122 and the enameled wire is improved, which is beneficial to the subsequent smooth welding.

[0071] In some embodiments, please refer to Figure 3 , a fillet 1123 is provided at the connection between the two side walls of the through groove 1122.

[0072] It can be understood that the cross-section of the enameled wire is circular. Based on this, in this embodiment, through the above settings, the contact area between the through groove 1122 and the enameled wire can be increased, thereby improving the stability of current transmission between the first connection portion 112 and the enameled wire.

[0073] In some embodiments, please refer to Figure 1 , along the radial direction of the body 111, the first connection portion 112 is disposed opposite to the body 111 as a whole.

[0074] Among them, along the axial direction of the body 111, the first connection portion 112 has a height dimension B, and the body 111 has a height dimension B', satisfying: B ≤ B'. Optionally, the height dimension B of the bus bar 11 is the same as the height dimension B' of the body 111, as Figure 5 shown, Figure 5 is a schematic diagram of the heights of the first connection portion 112 and the body 111 provided in an exemplary embodiment of the present disclosure.

[0075] In this embodiment, through the above settings, the first connection portion 112 as a whole and the body 111 can share the axial space, thereby further reducing the axial dimension of the bus bar 11. In this way, the axial space of the motor occupied by the bus bar 10 can be further reduced, making the axial dimension of the motor smaller.

[0076] In some embodiments, the current overload capacity of the body 111 is the same as the current overload capacity of the first connection portion 112.

[0077] It can be understood that the area of the current-carrying cross-section of the body 111 is the same as that of the first connecting portion 112. Specifically, the thickness dimension and the width dimension of the body 111 that constitute the current-carrying cross-section are respectively the same as the thickness dimension and the width dimension of the first connecting portion 112 that constitute the current-carrying cross-section.

[0078] In this embodiment, through the above settings, the current-carrying capacity of the first connecting portion 112 can be ensured, thereby improving the reliability of the busbar 11.

[0079] In some embodiments, please refer to Figure 5 , along the radial direction of the body 111, the minimum distance between the first connecting portion 112 and the body 111 is A, satisfying: 2.0 mm ≤ A ≤ 9.5 mm.

[0080] It can be understood that the minimum distance A between the first connecting portion 112 and the body 111 includes but is not limited to 2.0 mm, 3.0 mm, 3.6 mm, 4.0 mm, 4.8 mm, 5.4 mm, 5.9 mm, 6.0 mm, 6.8 mm, 7 mm, 7.3 mm, 7.9 mm, 8.0 mm, 8.5 mm, 8.8 mm, 9.0 mm, 9.2 mm, 9.5 mm.

[0081] In this embodiment, through the above settings, on the one hand, there is enough space for the thickness of the injection-molded skeleton between the first connecting portion 112 and the body 111, so that the injection-molded skeleton at this part can have an appropriate thickness to wrap the body 111; on the other hand, it can be avoided that the radial dimension of the busbar 11 is too large due to too large a distance, so that the radial dimension of the busbar 10 can be controlled, which is beneficial to controlling the radial dimension of the motor.

[0082] In some embodiments, please refer to Figure 1 , the busbar 11 further includes a confluence terminal 114. One end of the confluence terminal 114 is connected to the body 111.

[0083] Among them, the confluence terminal 114 is arranged to extend along the axis of the busbar 11. Specifically, the confluence terminal 114 is located on the side of the body 111 away from the stator assembly 20.

[0084] In this embodiment, by connecting the confluence terminal 114 to the body 111, the confluence terminal 114 and the body 111 are integrated, thereby improving the reliability of current transmission between the confluence terminal 114 and the body 111.

[0085] In some embodiments, the bus bar 11 is an integrally formed part, specifically a bent part. In this way, the problem of local stress concentration caused by welding can be avoided, so as to improve the reliability of the overall structure of the bus bar 11, and the forming efficiency of the bus bar 11 can be improved, and the processing cost of the bus bar 11 can be controlled.

[0086] Correspondingly, an embodiment of the present application further provides a bus bar 10. Please refer to Figure 6 , Figure 6 which is a schematic diagram of the overall structure of the bus bar 10 provided in an exemplary embodiment of the present disclosure.

[0087] The bus bar 10 includes an insulating skeleton 12 and the aforementioned bus bar 11. The insulating skeleton 12 is in a ring structure. There are multiple bus bars 11. The multiple bus bars 11 are arranged on the insulating skeleton 12 at intervals in the radial direction of the insulating skeleton 12. The first connecting portion 112 is located on the outer peripheral side of the insulating skeleton 12. Among them, the minimum distance between the first connecting portion 112 and the body 111 of each bus bar 11 is A, and the distances A of the respective bus bars 11 are different.

[0088] Specifically, the body of the bus bar 11 located on the outer side is located between the first connecting portion 112 and the body 111 of the bus bar 11 located on the inner side.

[0089] Among them, the circumferential positions of the first connecting portions 112 and the merging terminals 114 of the respective bus bars 11 may be different. For example, when the bus bar 10 is applied to a three-phase motor, there may be three bus bars 11, which may be a U-phase bus bar (such as Figure 1 shown), a V-phase bus bar (such as Figure 7 shown, Figure 7 which is a schematic diagram of the overall structure of another bus bar 11 provided in an exemplary embodiment of the present disclosure) and a W-phase bus bar (such as Figure 8 shown, Figure 8 which is a schematic diagram of the overall structure of yet another bus bar 11 provided in an exemplary embodiment of the present disclosure).

[0090] In addition, the insulating skeleton 12 is used to provide a supporting effect on the bus bar 11 and insulate the multiple bus bars 11 from each other, so that the multiple bus bars 11 are electrically insulated from each other. Exemplarily, the insulating skeleton 12 can be formed by an injection molding method.

[0091] In this embodiment, by adopting the aforementioned bus bar 11, the first connecting portion 112 is at least partially disposed opposite to the body 111, so that at least part of the first connecting portion 112 and the body 111 can share the same part of the axial space, and further the axial dimension of the bus bar 11 can be reduced. In this way, the axial space of the motor occupied by the bus bar 10 can be reduced, so that the axial dimension of the motor is smaller, and thus the ease of operation of the motor installation layout can be improved.

[0092] In the above embodiments, a plurality of bus bars 11 are sequentially arranged at intervals along the radial direction of the insulating skeleton 12, such as Figure 9 shown. Figure 9 It is a schematic layout structure diagram of a plurality of bus bars 11 provided in an exemplary embodiment of the present disclosure. Compared with the structure stacked along the axial direction, Figure 9 the layout structure of the plurality of bus bars 11 shown is arranged at intervals in the radial direction, and it does not need to be configured with a structure for insulating two adjacent bus bars 11 in the axial direction, but only needs to be configured with a structure for insulating two adjacent bus bars 11 in the radial direction, so that while ensuring the conductive area of the bus bar 10, the axial height of the bus bar 10 can be reduced.

[0093] In some embodiments, please refer to Figure 6 , the first connection portions 112 of the plurality of bus bars 11 are arranged at intervals along the same circumference of the insulating skeleton 12.

[0094] It can be understood that along the radial direction of the insulating skeleton 12, the second connection portion 113 has a length dimension. When a plurality of bus bars 11 are sequentially arranged at intervals in the radial direction, the length dimension of the second connection portion 113 on the outermost bus bar 11 is the smallest, and along the direction approaching the axis of the insulating skeleton, the length dimensions of the second connection portions 113 on each bus bar 11 increase in sequence.

[0095] In this embodiment, through the above arrangement, the enameled wire 204 can be conveniently placed in the through groove 1122 of the first connection portion 112, and the operation space when the first connection portion 112 is welded to the enameled wire 204 can be increased, so that welding can be more conveniently performed to improve the welding quality.

[0096] In addition, through the above arrangement, on the one hand, the operation process of welding the enameled wire to the first connection portion 112 by an automated production line can be simplified, thereby improving production efficiency; on the other hand, the symmetry of the bus bar 10 can be improved, which helps to reduce the vibration caused by asymmetry when the motor is working, thereby improving the reliability of the motor.

[0097] In some embodiments, please refer to Figure 6 , the first connection portions 112 of the plurality of bus bars 11 are located at the same axial position of the insulating skeleton 12.

[0098] In this embodiment, by unifying the layout of the first connection portions 112, the design and manufacturing process of the bus bar 10 can be simplified.

[0099] In this way, not only the manufacturing efficiency of the bus bar 10 can be improved, but also its maintainability can be improved.

[0100] Correspondingly, the embodiment of the present application further provides a stator assembly 1, please refer to Figure 10 ,Figure 10 It is a schematic diagram of the overall structure of the stator assembly 1 provided in the exemplary embodiment of the present disclosure.

[0101] The stator assembly 1 includes a stator component 20 and the aforementioned bus bar 10. The bus bar 10 is coaxially arranged with the stator component 20. The enameled wire of the stator component 20 is connected to the first connecting portion 112.

[0102] Among them, the bus bar member 11 is a conductor. The bus bar member 11 is used to connect the enameled wires that need to be connected together in multiple windings of the stator component 20, thereby realizing the electrical connection of multiple windings and finally realizing the bus bar function.

[0103] In this embodiment, by adopting the aforementioned bus bar 10, the first connecting portion 112 is at least partially arranged opposite to the main body 111, so that at least part of the first connecting portion 112 and the main body 111 can share the same part of the axial space, and thus the axial dimension of the bus bar member 11 can be reduced. In this way, the axial space of the motor occupied by the stator assembly 1 can be reduced, making the axial dimension of the motor smaller, and thus the ease of operation of the motor installation layout can be improved.

[0104] In some embodiments, along the axial direction of the insulating skeleton 12, the insulating skeleton 12 is inserted into the insulating frame of the stator component 20.

[0105] In this embodiment, by inserting the insulating skeleton 12 into the insulating frame of the stator component 20, the insulating skeleton 12 and the stator component 20 can be quickly positioned and installed, thereby improving the assembly efficiency of the stator assembly 1.

[0106] Specifically, please refer to Figure 11 and Figure 12 , Figure 11 It is a schematic diagram of the overall structure of the stator component 20 provided in the exemplary embodiment of the present disclosure, Figure 12 It is a side view structure schematic diagram of the insulating skeleton 12 provided in the exemplary embodiment of the present disclosure. A limiting block 121 is arranged at one end of the insulating skeleton 12 close to the stator component 20. A limiting groove is arranged on one side of the insulating frame of the stator component 20 close to the insulating skeleton 12. Along the axial direction of the insulating skeleton 12, the limiting block 121 is inserted into the limiting groove.

[0107] In this embodiment, through the above settings, the bus bar 10 and the stator component 20 can be positioned in the circumferential direction to avoid relative rotation between them, which is beneficial to the operability of subsequent welding of the first connecting portion 112 and the enameled wire.

[0108] Moreover, the insertion structure between the bus bar 10 and the stator component 20 is opposite to the stator component 20 in the radial direction, thereby controlling the overall height of the stator assembly 1, which is beneficial to the layout of internal components of the motor and the control of the overall height of the electronics.

[0109] In some embodiments, refer to Figure 11 and Figure 13 , Figure 13 which is a schematic diagram of the overall structure of the insulating skeleton 12 provided in an exemplary embodiment of the present disclosure. A first positioning groove 122 is provided on the outer peripheral surface of the insulating skeleton 12, as shown in Figure 13 . A second positioning groove is provided on the outer peripheral surface of the stator assembly 20, as shown in Figure 11 . The first positioning groove 122 and the second positioning groove are located on the same radial line of the insulating skeleton 12, as shown in Figure 10 .

[0110] In this embodiment, through the above arrangement, when the bus bar 10 is inserted into the stator assembly 20, the relative position between the first positioning groove 122 and the second positioning groove can be used to determine whether the insertion structure between the bus bar 10 and the stator assembly 20 is aligned, thereby improving the ease of operation and accuracy of the insertion of the bus bar 10 into the stator assembly 20.

[0111] In some embodiments, refer to Figure 12 , a boss 123 is provided at one end of the insulating skeleton 12 close to the stator assembly 20. Along the axial direction of the insulating skeleton 12, the boss 123 abuts against the insulating frame of the stator assembly 20, so that the insulating skeleton 12 and the enameled wire coil of the stator assembly 20 are arranged at intervals along the axial direction of the insulating skeleton 12.

[0112] It can be understood that when the insulating skeleton 12 is in direct contact with the enameled wire coil, the bus bar 10 will be lifted axially by the enameled wire; at the same time, the vibration during the operation of the motor will cause the bus bar 10 to damage the insulating film of the enameled wire.

[0113] Based on this, in this embodiment, by arranging the boss 123 to abut against the insulating frame of the stator assembly 20, the insulating skeleton 12 and the enameled wire coil of the stator assembly 20 are arranged at intervals along the axial direction of the insulating skeleton 12, so as to avoid direct contact between the insulating skeleton 12 and the enameled wire coil. In this way, it can not only avoid the bus bar 10 being lifted axially by the enameled wire, but also avoid the insulating film of the enameled wire being damaged by the vibration during the operation of the motor. Finally, the reliability of the motor can be improved.

[0114] In addition, by providing the boss 123, the interval setting between the insulating skeleton 12 and the enameled wire coil can be completed when the bus bar 10 and the stator assembly 20 are assembled, thereby improving the assembly efficiency of the stator assembly 1.

[0115] Among them, according to different types of motors, the cavity size of the injection-molded boss 123 can be adjusted so that the size of the formed boss 123 meets the requirements of the corresponding motor.

[0116] In one embodiment, the boss 123 is located between the insulating skeleton 12 and the limiting block 121. Along the axial direction of the insulating skeleton 12, both sides of the boss 123 are connected to the insulating skeleton 12 and the limiting block 121 respectively, as Figure 12 shown. In this way, the overall layout of the insulating skeleton 12 can be made more compact.

[0117] Correspondingly, an embodiment of the present application further provides a motor, which includes the aforementioned stator assembly 1.

[0118] In this embodiment, by adopting the aforementioned stator assembly 1, the axial space occupied by the stator assembly 1 in the motor is relatively small, so that the axial dimension of the motor can be relatively small. In this way, the ease of operation of the motor installation layout can be improved.

[0119] Correspondingly, an embodiment of the present application further provides a vehicle, which includes the aforementioned motor. In this embodiment, by adopting the aforementioned motor, the space occupied by the motor in the vehicle is relatively small, which is conducive to the arrangement of related vehicle components. In this way, the ease of operation of the installation layout of related vehicle components can be improved.

[0120] In the description of the present application, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more features. In the description of the present application, "a plurality of" means two or more, unless otherwise specifically defined.

[0121] In the above embodiments, the descriptions of the respective embodiments have their own emphases. For the parts not detailed in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.

[0122] The embodiments, implementation manners and related technical features of the present application can be combined and replaced with each other without conflict.

[0123] The above are only the preferred embodiments of the present application, and do not impose any form of limitation on the present application. Although the present application has been described by way of examples, and the descriptions of the respective embodiments have their own emphases, for the parts not detailed in a certain embodiment, reference may be made to the relevant descriptions of other embodiments. However, any brief modifications, equivalent changes and decorations made to the above embodiments based on the technical essence of the present application without departing from the content of the technical solution of the present application still fall within the scope of the technical solution of the present application.

Claims

1. A busbar, characterized in that: include: The main body is an arc-shaped structure; The connecting terminal comprises a first connecting portion and a second connecting portion, wherein the first connecting portion is located at the outer peripheral side of the body and is spaced apart from the body, and along the radial direction of the body, the first connecting portion is at least partially arranged opposite to the body; two ends of the second connecting portion are respectively connected to the body and the first connecting portion, and along the axis of the cylinder where the body is located, the second connecting portion is located at one end of the body; There are a plurality of connecting terminals, and the plurality of connecting terminals are arranged at intervals along the circumference of the body.

2. The busbar according to claim 1, characterized in that: The second connection part is a U-shaped structure, the U-shaped surface of the U-shaped structure is parallel to the axis of the cylinder where the main body is located, and the two ends of the U-shaped structure are respectively connected to the main body and the first connection part.

3. The busbar according to claim 1, characterized in that: A through slot is provided on a side of the first connecting portion facing away from the main body, and an extending direction of the through slot is parallel to the axis of the cylinder where the main body is located.

4. The busbar according to claim 3, characterized in that: The through groove is a V-shaped groove.

5. The busbar according to claim 4, characterized in that: The angle between the groove walls on both sides of the through groove is D, which satisfies: 30°≤D≤60°.

6. The busbar according to claim 4, characterized in that: The connection between the groove walls on both sides of the through groove is provided with a rounded corner.

7. The busbar according to any one of claims 1 to 6, characterized in that: Along the radial direction of the body, the first connecting portion is entirely arranged opposite to the body.

8. The busbar according to any one of claims 1 to 6, characterized in that: Along the radial direction of the body, the minimum distance between the first connecting portion and the body is A, satisfying: 2.0 mm ≤ A ≤ 9.5 mm.

9. The busbar according to claim 8, characterized in that: Along the axial direction of the body, the first connecting portion has a height dimension B, and the body has a height dimension B', satisfying: B=B'.

10. The busbar according to any one of claims 1 to 6, characterized in that: The busbar further includes a merging terminal, one end of which is connected to the body.

11. A busbar, characterized in that: include: The insulating skeleton is a ring structure; And, the busbar as described in any one of claims 1 to 10, there are a plurality of the busbars, the plurality of the busbars are arranged on the insulating frame at intervals along the radial direction of the insulating frame, and the first connecting portion is located on the outer peripheral side of the insulating frame; Wherein, the minimum distance between the first connecting portion of each of the current collectors and the main body is A, and the distance A of each of the current collectors is different.

12. The busbar according to claim 11, characterized in that The first connecting portions of the plurality of current collectors are arranged at intervals along the same circumference of the insulating frame.

13. A stator assembly, characterized in that: include: stator assembly; And, according to the busbar as claimed in claim 11 or 12, the busbar is coaxially arranged with the stator assembly, and the enameled wire of the stator assembly is connected to the first connecting portion.

14. The stator assembly according to claim 13, characterized in that: Along the axial direction of the insulating skeleton, the insulating skeleton is plugged into the insulating frame of the stator assembly.

15. The stator assembly according to claim 14, characterized in that: A limiting block is arranged at one end of the insulating frame close to the stator assembly, and a limiting groove is arranged at one side of the insulating frame of the stator assembly close to the insulating frame. The limiting block is plugged into the limiting groove along the axial direction of the insulating frame.

16. The stator assembly according to claim 14, characterized in that: The outer circumferential surface of the insulating frame is provided with a first positioning groove, and the outer circumferential surface of the stator assembly is provided with a second positioning groove, and the first positioning groove and the second positioning groove are located in the same radial direction of the insulating frame.

17. The stator assembly according to any one of claims 14 to 16, characterized in that: A boss is provided at one end of the insulating skeleton close to the stator assembly, and the boss abuts against the insulating frame of the stator assembly along the axial direction of the insulating skeleton, so that the insulating skeleton and the enameled wire package of the stator assembly are spaced apart along the axial direction of the insulating skeleton.

18. A motor, characterized in that: Comprising the stator assembly as claimed in claim 17.

19. A vehicle, characterized in that: Comprising the motor as claimed in claim 18.

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