Busbar, motor assembly and vehicle

Abstract

The utility model provides a busbar, a motor assembly and a vehicle, and relates to the technical field of motors, the busbar comprises a mounting rack, the mounting rack is provided with a threading hole and a glue injection groove; the threading hole is used for accommodating a winding outgoing line and is communicated with the at least one glue injection groove; the glue injection groove is used for containing glue materials. According to the busbar, the glue injection groove is additionally arranged, on one hand, glue materials can be conveniently added through the glue injection groove, on the other hand, the design of the glue injection groove is beneficial to containing and adding more glue materials, and the reliability of bonding of the busbar and a winding outgoing line can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, and more specifically, to a busbar, a motor assembly and a vehicle. Background Art

[0002] With the rapid development of the electric vehicle industry, flat wire motors have become a popular choice in electric drive systems due to their high power density and high slot fill factor. During installation, to ensure a stable connection between the motor and the controller, the busbar is usually connected to the winding lead-out wire by welding.

[0003] In the prior art, some busbars include an installation bracket and a connection row unit arranged on the installation bracket. The installation bracket is provided with a wire passing hole for the winding lead-out wire to pass through. During the assembly of the busbar and the motor, after the winding lead-out wire passes through the wire passing hole, it is welded and fixed to the pin of the corresponding connection row unit. Sometimes, a colloidal insulating material such as insulating paint and coating material may be filled between the wire passing hole and the winding lead-out wire, and after it solidifies, the strength of the busbar after welding is enhanced.

[0004] However, the inventor has realized that during actual use, due to the small gap between the wire passing hole and the winding lead-out wire, it is difficult or impossible to complete the operation of filling the glue material, resulting in a lack of overall strength of the busbar after assembly. Summary of the Utility Model

[0005] The problem solved by the utility model is how to facilitate the filling of glue material for the busbar.

[0006] In a first aspect, the utility model provides a busbar, including an installation bracket, wherein the installation bracket is provided with a wire passing hole and a glue injection groove; the wire passing hole is used to accommodate the winding lead-out wire and is communicated with at least one of the glue injection grooves; the glue injection groove is used to accommodate the glue material.

[0007] Optionally, there are multiple wire passing holes, and at least two of the wire passing holes are communicated through the glue injection groove.

[0008] Optionally, the wire passing hole is a through-hole structure, and the openings on the same side of at least two of the wire passing holes are communicated through the glue injection groove.

[0009] Optionally, the plane where the opening of the wire passing hole is located is flush with the plane where the notch of the glue injection groove is located.

[0010] Optionally, the glue injection groove is located between two adjacent wire passing holes, and both ends of the glue injection groove are respectively communicated with the two adjacent wire passing holes.

[0011] Optionally, the bus bar further includes a connection bar unit integrally formed with the mounting bracket. At least a part of the pins of the connection bar unit are arranged corresponding to the wire passing holes. One side surface of the pins arranged corresponding to the wire passing holes is exposed in the corresponding wire passing holes, and the remaining side surfaces are covered by the mounting bracket.

[0012] Optionally, one side surface of the pin exposed in the corresponding wire passing hole is adjacent to the communication part of the wire passing hole and the glue injection groove.

[0013] Optionally, a plurality of pins of the connection bar unit are configured to be arranged at intervals along a partial arc of a circle, and at least one pin located at the first segment and at least one pin located at the last segment are respectively arranged corresponding to the wire passing holes.

[0014] In a second aspect, the present invention provides a motor assembly, including a stator and the bus bar as described above. The stator includes a plurality of winding lead-out wires, and at least one of the winding lead-out wires is accommodated in the wire passing hole of the bus bar. There is a glue material in the wire passing hole and the glue injection groove of the bus bar.

[0015] In a third aspect, the present invention provides a vehicle, including the motor assembly as described above.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] During the assembly process of the bus bar and the motor, first, a part of the winding lead-out wire is accommodated in the wire passing hole on the mounting bracket, and then the part of the winding lead-out wire outside the wire passing hole is welded to the bus bar. Subsequently, a glue material, such as insulating paint and coating material, is injected into the glue injection groove on the mounting bracket. Since the wire passing hole is communicated with at least one glue injection groove, the insulating paint and coating material in the glue injection groove will flow into the wire passing hole and contact the winding lead-out wire. After the glue-like insulating paint and coating material solidify, the winding lead-out wire can be connected to the mounting bracket through the solidified insulating paint and coating material. In summary, by adding the glue injection groove, on the one hand, it is convenient to add the glue material by using the glue injection groove, and on the other hand, the design of the glue injection groove is beneficial to accommodating and adding more glue material, which is beneficial to improving the bonding reliability between the bus bar and the winding lead-out wire. Description of the Drawings

[0018] Figure 1 Structural schematic diagram of the bus bar according to the embodiment of the present invention Figure 1 。

[0019] Figure 2 Structural schematic diagram of the bus bar according to the embodiment of the present invention Figure 2 。

[0020] Figure 3 Partial cross-sectional view of the bus bar according to the embodiment of the present invention.

[0021] Figure 4 is Figure 3 The partial enlarged view at position A in

[0022] Figure 5 is the structural schematic diagram of the bus bar of the embodiment of the present utility model Figure 3 .

[0023] Figure 6 is the position schematic diagram of multiple connection row units of the embodiment of the present utility model

[0024] Figure 7 is the assembly schematic diagram of the bus bar of the embodiment of the utility model

[0025] Explanation of reference numerals:

[0026] 1. Mounting frame; 11. Wire passing hole; 12. Glue injection groove; 2. Connection row unit; 21. U-phase copper bar; 22. V-phase copper bar; 23. W-phase copper bar; 24. Star point copper bar; 25. Pin; 3. Stator; 31. Winding lead wire Specific embodiments

[0027] In order to make the above objects, features and advantages of the present utility model more obvious and understandable, the following detailed description of the specific embodiments of the present utility model will be given with reference to the accompanying drawings. Although some embodiments of the present utility model are shown in the drawings, it should be understood that the present utility model can be implemented in various forms and should not be construed as limited to the embodiments described herein. On the contrary, these embodiments are provided to more thoroughly and completely understand the present utility model. It should be understood that the drawings and embodiments of the present utility model are only for exemplary purposes and are not used to limit the protection scope of the present utility model

[0028] In the accompanying drawings, the Z-axis represents the vertical direction, that is, the up and down position, and the positive direction of the Z-axis represents the upper side, and the negative direction of the Z-axis represents the lower side; the X-axis in the accompanying drawings represents the horizontal direction and is specified as the front and back position, and the positive direction of the X-axis represents the front side, and the negative direction of the X-axis represents the back side; the Y-axis in the accompanying drawings represents the left and right position, and the positive direction of the Y-axis represents the left side, and the negative direction of the Y-axis represents the right side. At the same time, it should be noted that the above-mentioned meanings represented by the Z-axis, Y-axis and X-axis are only for facilitating the description of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to the present utility model

[0029] As used herein, the term "comprising" and its variants are open-ended, i.e., "including but not limited to"; the term "based on" means "at least partially based on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments"; the term "optionally" means "optional embodiment". The relevant definitions of other terms will be given in the following description. It should be noted that the concepts such as "first" and "second" mentioned in the present utility model are only used to distinguish different devices, modules or units, and are not used to limit the order or mutual dependence relationship of the functions performed by these devices, modules or units.

[0030] It should be noted that the modifications of "one" and "a plurality" mentioned in the present utility model are illustrative rather than restrictive. Those skilled in the art should understand that unless otherwise clearly specified in the context, it should be understood as "one or more".

[0031] As Figure 1 、 2 As shown, a busbar provided by an embodiment of the present utility model includes a mounting bracket 1. The mounting bracket 1 is provided with a wire threading hole 11 and a glue injection groove 12. The wire threading hole 11 is used to accommodate the winding lead wire 31 and is communicated with at least one glue injection groove 12. The glue injection groove 12 is used to accommodate the glue material.

[0032] Specifically, the mounting bracket 1 is an insulating injection molded part, and its overall shape is similar to an arc. Generally, it is used for injection molding together with the three-phase copper bar and the star point copper bar so that the three-phase copper bar and the star point copper bar are connected into a whole. Moreover, the overall busbar formed by the mounting bracket 1 and the three-phase copper bar and the star point copper bar is also roughly arc-shaped. This busbar is used to be arranged at one end of the stator 3 in the axial direction (the direction where the Z axis is located) and extends along the circumferential direction of the motor stator. The mounting bracket 1 is provided with a wire threading hole 11 in the direction where the Z axis is located. The wire threading hole 11 can be either a through hole structure or a blind hole structure, and its shape matches the shape of the winding lead wire 31. For example, the cross-sectional shape of the wire threading hole 11 and the cross-sectional shape of the winding lead wire 31 are both rectangular, and the horizontal cross-sectional dimension of the wire threading hole 11 is slightly larger than the horizontal cross-sectional dimension of the winding lead wire 31, so as to facilitate the winding lead wire 31 to penetrate or be inserted into the wire threading hole 11. At the same time, the upper surface of the mounting bracket 1, that is, the end face of the mounting bracket 1 away from the stator, is provided with a glue injection groove 12, and the wire threading hole 11 is communicated with at least one glue injection groove 12 to allow the glue material to flow into the wire threading hole 11 when filling the glue material.

[0033] In this embodiment, during the assembly of the bus bar and the motor, first, a part of the winding lead wire 31 is received in the wire passing hole 11 on the mounting bracket 1, and then the part of the winding lead wire 31 outside the wire passing hole 11 is welded to the bus bar. Subsequently, a glue material, such as a colloidal insulating paint and a coating material, is injected into the glue injection groove 12 on the mounting bracket 1. Since the wire passing hole 11 communicates with at least one glue injection groove 12, the insulating paint and the coating material in the glue injection groove 12 will flow into the wire passing hole 11 and come into contact with the winding lead wire 31. After the colloidal insulating paint and the coating material solidify, the winding lead wire 31 can be connected to the mounting bracket 1 through the solidified insulating paint and coating material, thereby enhancing the connection strength between the winding lead wire 31 and the mounting bracket 1. In summary, by adding the glue injection groove 12, on the one hand, it is convenient to add the glue material by using the glue injection groove 12, and on the other hand, the design of the glue injection groove 12 is conducive to accommodating and adding more glue material, which is beneficial to improving the reliability of the bonding between the bus bar and the winding lead wire 31.

[0034] In other embodiments, the shape of the glue injection groove 12 can be arc-shaped, straight-shaped, cross-shaped or other irregular shapes, which are not limited here and are determined according to actual needs.

[0035] Optionally, as Figure 1 , 2 shown, there are multiple wire passing holes 11, and at least two wire passing holes 11 communicate with each other through the glue injection groove 12.

[0036] Specifically, the number of the wire passing holes 11 can be one, two or three, etc., which are not limited here and are determined according to actual needs. For example, as Figure 1 , 2 shown, the number of the wire passing holes 11 is four, and two wire passing holes 11 form a group. In a group of wire passing holes 11, two wire passing holes 11 communicate with each other through one glue injection groove 12.

[0037] In this alternative embodiment, at least two wire passing holes 11 communicate with each other through the glue injection groove 12. Thus, when filling the glue material into the glue injection groove 12, the insulating paint and the coating material can flow towards the two wire passing holes 11 respectively. Compared with each wire passing hole 11 communicating with one glue injection groove 12 respectively, the time for filling the glue material is effectively reduced. At the same time, after the insulating paint and the coating material solidify, the solidified insulating paint and coating material can be connected to the two winding lead wires 31 at the same time, reducing the probability of the two winding lead wires 31 shaking, and further enhancing the overall strength of the bus bar.

[0038] In other embodiments, in a group of wire passing holes 11, two wire passing holes 11 can also communicate with each other through two, three or four glue injection grooves 12, which are not limited here and are determined according to actual needs.

[0039] It should be understood that although the above embodiments disclose an implementation manner in which at least two wire threading holes 11 are connected and communicated through a glue injection groove 12, it does not exclude the case where each wire threading hole 11 is respectively connected and communicated with a glue injection groove 12. For example, as Figure 5 shown, four wire threading holes 11 are respectively connected and communicated with four glue injection grooves 12.

[0040] Optionally, as Figure 3 shown, the wire threading hole 11 is a through hole structure, and the openings on the same side of at least two wire threading holes 11 are connected and communicated through the glue injection groove 12.

[0041] Specifically, the wire threading hole 11 is a through hole structure that penetrates the mounting frame 1 along the direction of the Z axis. As Figure 1 、 3 shown, two wire threading holes 11 form a group. In a group of wire threading holes 11, the two wire threading holes 11 are provided with openings on the upper surface of the mounting frame 1, that is, the end surface away from the stator 3, and are connected and communicated through the glue injection groove 12.

[0042] In this optional embodiment, this design first takes into account the reasonable utilization of space. Through the through hole structure along the Z-axis direction, the wire threading hole 11 can make full use of the height space of the mounting frame 1 and is convenient for the winding lead wire 31 to pass through for welding. Secondly, the two wire threading holes 11 are provided with openings on the upper surface of the mounting frame 1 and are connected and communicated through the glue injection groove 12. Such a layout allows the insulating paint and coating material to flow to the openings of the wire threading holes 11, so that the flow of the insulating paint and coating material can be clearly observed when filling the glue material, so as to make timely adjustments.

[0043] Optionally, as Figure 2 shown, the plane where the opening of the wire threading hole 11 is located is flush with the plane where the notch of the glue injection groove 12 is located.

[0044] Specifically, the wire threading hole 11 is provided with an opening on the upper surface of the mounting frame 1, that is, the end surface away from the stator 3; the glue injection groove 12 is provided with a notch on the upper surface of the mounting frame 1, that is, the end surface away from the stator 3, and the plane where the opening of the mounting frame 1 is located is flush with the plane where the notch of the glue injection groove 12 is located. That is to say, the opening of the wire threading hole 11 on the upper surface of the mounting frame 1 and the notch of the glue injection groove 12 on the upper surface of the mounting frame 1 are located on the same horizontal plane.

[0045] In this optional embodiment, when filling the glue material, since the plane where the opening of the wire threading hole 11 is located is flush with the plane where the notch of the glue injection groove 12 is located, it can not only reduce the probability of the insulating paint and coating material overflowing to the upper surface of the mounting frame 1 when the glue injection groove 12 is not filled, but also help to improve the overall aesthetics.

[0046] Optionally, as Figure 1 、 2As shown, the glue injection groove 12 is located between two adjacent wire threading holes 11, and both ends of the glue injection groove 12 are respectively communicated with two adjacent wire threading holes 11.

[0047] Specifically, two adjacent wire threading holes 11 form a group. In a group of wire threading holes 11, the two wire threading holes 11 are arranged at an interval of about 2 cm to 3 cm. The glue injection groove 12 is located between two adjacent wire threading holes 11, one end of which is communicated with the opening of one wire threading hole 11, and the opposite end is communicated with the opening of the other wire threading hole 11.

[0048] In this optional embodiment, a glue injection groove 12 is provided between two adjacent wire threading holes 11, which can effectively shorten the length of the glue injection groove 12, reduce the distance for the insulating paint and coating material to flow to the wire threading holes 11, and further reduce the time for the insulating paint and coating material to enter the wire threading holes 11.

[0049] It should be noted that although the above embodiment discloses the embodiment where the glue injection groove 12 is located between two adjacent wire threading holes 11, it does not exclude the way that the glue injection groove 12 is not located between two adjacent wire threading holes 11. For example, the glue injection groove 12 is located on the right side of two adjacent wire threading holes 11. The glue injection groove 12 is integrally U-shaped, and both ends of the U-shaped glue injection groove 12 are respectively communicated with two adjacent wire threading holes 11.

[0050] Optionally, as Figure 2 、 3 、shown in FIG. 4, the bus bar further includes a connection bar unit 2. The connection bar unit 2 is integrally formed with the mounting bracket 1. At least part of the pins 25 of the connection bar unit 2 are arranged corresponding to the wire threading holes 11. One side surface of the pins 25 arranged corresponding to the wire threading holes 11 is exposed in the corresponding wire threading holes 11, and the remaining side surfaces are covered by the mounting bracket 1.

[0051] Specifically, the connection bar unit 2 is a copper bar, which may include a U-phase copper bar 21, a V-phase copper bar 22, a W-phase copper bar 23, and a star point copper bar 24. During production, first place the U-phase copper bar 21, the V-phase copper bar 22, the W-phase copper bar 23, and the star point copper bar 24 at appropriate positions in the mold, and then inject the U-phase copper bar 21, the V-phase copper bar 22, the W-phase copper bar 23, and the star point copper bar 24 into a single component by using PPS + 30% injection molding raw materials. At this time, the part other than the U-phase copper bar 21, the V-phase copper bar 22, the W-phase copper bar 23, and the star point copper bar 24 forms the mounting bracket 1. The bus bar is an integral component, which effectively simplifies the welding process of the bus bar compared with welding each connection bar unit 2 separately, and thus improves the work efficiency.

[0052] As Figure 4As shown, the part of the connection row unit 2 except for the head and the pins 25 can be located inside the mounting bracket 1. Part of the pins 25 of the connection row unit 2 pass through the upper surface of the mounting bracket 1 and extend to the outside of the mounting bracket 1, corresponding to the wire passing holes 11. Among them, one side surface of the pins 25 corresponding to the wire passing holes 11 is exposed in the corresponding wire passing holes 11, and the remaining side surfaces are wrapped by the mounting bracket 1. In this way, the surface of part of the pins 25 of the connection row unit 2 exposed in the corresponding wire passing holes 11 can serve as part of the inner wall of the corresponding wire passing holes 11. When the winding lead 31 penetrates or is inserted into the wire passing holes 11, effective contact between the winding lead 31 and the surface of the pins 25 exposed in the corresponding wire passing holes 11 can be achieved.

[0053] Optionally, as Figure 4 shown, one side surface of the pin 25 exposed in the corresponding wire passing hole 11 is adjacent to the communication part of the wire passing hole 11 and the glue injection groove 12.

[0054] Specifically, one side surface of the pin 25 exposed in the corresponding wire passing hole 11 is adjacent to the communication part of the wire passing hole 11 and the glue injection groove 12. The cross-section of the winding lead 31 is generally rectangular, and the cross-section of the wire passing hole 11 can be a rectangle matching the cross-section shape of the winding lead 31, specifically including inner walls on all four sides. The surface of part of the pins 25 is exposed at one inner wall of the corresponding wire passing hole 11 and can serve as this side inner wall of the wire passing hole 11, and there is also one side among the other side inner walls of the wire passing hole 11 for communicating with the glue injection groove 12; in this embodiment, the so-called adjacent means that one inner wall of the wire passing hole 11 where the surface of the pin 25 is located and the inner wall connected to the glue injection groove 12 are adjacent, rather than opposite; in addition, there is an allowable certain distance between one side surface of the pin 25 exposed in the corresponding wire passing hole 11 and the communication part of the wire passing hole 11 and the glue injection groove 12, generally about 1 cm to 2 cm, which is not limited here and is determined according to actual requirements.

[0055] In this optional embodiment, after the winding lead 31 passes through the wire passing hole 11, the winding lead 31 is attached to the pin 25 of the connection row unit 2. Since one side surface of the pin 25 exposed in the corresponding wire passing hole 11 is adjacent to the communication part of the wire passing hole 11 and the glue injection groove 12, when filling the glue material, the insulating paint and the coating material can enter the gap where the pin 25 of the connection row unit 2 and the winding lead 31 are attached (that is, the gap where the two are not welded). After the insulating paint and the coating material solidify, the pin 25 of the connection row unit 2 and the winding lead 31 can be more closely attached, thereby reducing the stress at the solder joint of the bus bar.

[0056] Optionally, as Figure 1 、 6As shown, a plurality of pins 25 of the connection row unit 2 are configured to be arranged at intervals along a partial arc of a circumference, and at least one pin 25 located at the head section and at least one pin 25 located at the tail section are respectively arranged corresponding to the wire passing holes 11.

[0057] Specifically, the connection row unit 2 includes a U-phase copper row 21, a V-phase copper row 22, a W-phase copper row 23, and a star point copper row 24. Among them, the U-phase copper row 21 is provided with two pins 25, and the two pins 25 pass through the mounting bracket 1 and are respectively arranged corresponding to a wire passing hole 11. That is to say, partial surfaces of the two pins 25 can respectively form the inner walls of the corresponding wire passing holes 11. The V-phase copper row 22 and the W-phase copper row 23 are respectively provided with two pins 25 and are located outside the mounting bracket 1. The star point copper row 24 is provided with six pins 25, and two of the pins 25 pass through the mounting bracket 1 and are respectively arranged corresponding to a wire passing hole 11. That is to say, partial surfaces of the two pins 25 can respectively form the inner walls of the corresponding wire passing holes 11; the other four pins 25 of the star point copper row 24 are located outside the mounting bracket 1.

[0058] After the busbar injection molding is completed, all the pins 25 of the U-phase copper row 21, the V-phase copper row 22, the W-phase copper row 23, and the star point copper row 24 are located within the same circumference. That is to say, in a plane perpendicular to the axis of the motor, the horizontal distances from all the pins 25 of the connection row unit 2 to the center O of the motor are equal, as shown in Figure 6 shown; among them, along the arrangement direction of the plurality of pins 25, the two pins 25 of the U-phase copper row 21 located at the head section and the two pins 25 of the star point copper row 24 located at the tail section are respectively arranged corresponding to the four wire passing holes 11. In this way, when the busbar is assembled with the motor, the four wire passing holes 11 can realize the limit of the relative two ends of the busbar, and further promote the positioning and fitting of all the pins 25 of the busbar with the winding lead wires 31, and further facilitate the welding of the pins 25 with the winding lead wires 31.

[0059] A motor assembly provided by an embodiment of the present invention, as shown in Figure 7 shown, includes a stator 3 and the busbar as described above. The stator 3 includes a plurality of winding lead wires 31, and at least one of the winding lead wires 31 is accommodated in the wire passing hole 11 of the busbar, and there is a glue material in the wire passing hole 11 and the glue injection groove 12 of the busbar.

[0060] Specifically, the motor assembly includes a stator 3. The stator 3 is provided with vertical winding lead-out wires 31 along the axial direction. Some of the winding lead-out wires 31 pass through the wire-passing holes 11 of the busbar and are welded to the pins 25 of the connection row unit 2, and some of the winding lead-out wires 31 are directly attached to the pins 25 of the connection row unit 2 and welded and fixed. After welding, a colloidal adhesive material, such as insulating paint and coating material, is injected into the glue injection groove 12 on the mounting bracket 1. After the colloidal insulating paint and coating material solidify, the wire-passing holes 11 of the busbar and the glue injection groove 12 are filled with the solidified adhesive material to achieve a reliable connection between the winding lead-out wires 31 and the busbar.

[0061] The beneficial effects of the motor assembly of this embodiment and the above-mentioned busbar relative to the prior art are the same, so they will not be elaborated here.

[0062] A vehicle provided by an embodiment of the present invention includes the motor assembly as described above.

[0063] The beneficial effects of the vehicle of this embodiment and the above-mentioned busbar relative to the prior art are the same, so they will not be elaborated here.

[0064] Although the present invention is disclosed as above, the protection scope of the present invention is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications will all fall within the protection scope of the present invention.

Claims

1. A busbar, characterized in that: The invention comprises a mounting frame (1), wherein the mounting frame (1) is provided with a threading hole (11) and a glue injection groove (12); the threading hole (11) is used to accommodate a winding lead wire (31) and is connected to at least one of the glue injection grooves (12); and the glue injection groove (12) is used to accommodate glue material.

2. The busbar according to claim 1, characterized in that: There are a plurality of threading holes (11), and at least two of the threading holes (11) are connected via the glue injection groove (12).

3. The busbar according to claim 2, characterized in that: The threading holes (11) are through-hole structures, and the openings on the same side of at least two threading holes (11) are connected via the glue injection groove (12).

4. The busbar according to claim 3, characterized in that: The plane where the opening of the threading hole (11) is located is flush with the plane where the notch of the glue injection groove (12) is located.

5. The busbar according to claim 3, characterized in that: The glue injection groove (12) is located between two adjacent threading holes (11), and two ends of the glue injection groove (12) are respectively connected to the two adjacent threading holes (11).

6. The busbar according to any one of claims 1 to 5, characterized in that: The bus bar further comprises a connection bar unit (2), wherein the connection bar unit (2) and the mounting frame (1) are integrally formed, and at least part of the pins (25) of the connection bar unit (2) are arranged corresponding to the threading holes (11), and one side surface of the pins (25) arranged corresponding to the threading holes (11) is exposed in the corresponding threading holes (11), and the remaining side surfaces are covered by the mounting frame (1).

7. The busbar according to claim 6, characterized in that: The pin (25) is exposed on one side of the surface of the corresponding threading hole (11) adjacent to the connection point between the threading hole (11) and the glue injection groove (12).

8. The busbar according to claim 6, characterized in that: The plurality of pins (25) of the connection row unit (2) are configured to be arranged at intervals along a partial arc of a circle, and at least one of the pins (25) located at the beginning section and at least one of the pins (25) located at the end section are respectively arranged corresponding to the threading holes (11).

9. A motor assembly, characterized in that: The invention comprises a stator (3) and a busbar according to any one of claims 1 to 8, wherein the stator (3) comprises a plurality of winding lead wires (31), at least one of the winding lead wires (31) is accommodated in a threading hole (11) of the busbar, and the threading hole (11) and the glue injection groove (12) of the busbar contain glue material.

10. A vehicle, characterized in that: Comprising the motor assembly as claimed in claim 9.

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