Busbar assembly and motor

Abstract

The utility model provides a busbar assembly and a motor, and relates to the technical field of motor busbars, the busbar assembly is arranged in the motor and is connected with a leading-out terminal of a stator winding of the motor, and the busbar assembly comprises a plurality of phase connection bars and star point connection bars, the plurality of phase connection rows and the star point connection rows are suitable for being arranged in the circumferential direction of the stator winding, the plurality of phase connection rows are located in the same horizontal plane and are spaced apart, and the star point connection rows are suitable for being stacked with one phase connection row in the plurality of phase connection rows in the axial direction of the stator winding and are arranged at intervals. Therefore, the plurality of phase connecting bars in the busbar assembly are located on the same horizontal plane and are spaced apart, and the star point connecting bar and one of the plurality of phase connecting bars are stacked and arranged at intervals, so that the stacking of the connecting bars is reduced, the space occupation of the busbar assembly is reduced, and the busbar assembly is simple in structure.

Description

Technical Field

[0001] The present application relates to the technical field of motor busbars, and more specifically, to a busbar assembly and a motor. Background Art

[0002] Motors have broad application prospects and market potential in the field of new energy vehicles. With the rapid development of lightweight and integrated new energy vehicles, people have put forward higher structural requirements for motors.

[0003] In the related art, the output terminals of the motor armature are usually connected by soft copper braided wire or BUSBAR copper busbar structure. However, the above connection method easily leads to a complex winding connection structure, a large number of copper busbar layers, and a large space occupation. Utility Model Content

[0004] The present application provides a busbar assembly and a motor, wherein a plurality of phase connection bars in the busbar assembly are in the same horizontal plane and are spaced apart, and a star point connection bar and a phase connection bar among the plurality of phase connection bars are stacked and spaced apart, thereby reducing the stacking between the connection bars, which is beneficial to reducing the space occupied by the busbar assembly and has a simple structure.

[0005] In a first aspect, a busbar assembly is provided, wherein the busbar assembly is disposed in a motor and connected to an output terminal of a stator winding of the motor, and the busbar assembly comprises:

[0006] Multiple phase connection rows and star point connection rows, both of which are suitable for being arranged along the circumferential direction of the stator winding, wherein the multiple phase connection rows are in the same horizontal plane and are spaced apart, and the star point connection row is suitable for being stacked and spaced apart with one of the multiple phase connection rows along the axial direction of the stator winding.

[0007] According to the busbar assembly of the embodiment of the utility model, multiple phase connection bars in the busbar assembly are in the same horizontal plane and are spaced apart, and the star point connection bar and one phase connection bar among the multiple phase connection bars are stacked and spaced apart, thereby reducing the stacking between the connection bars, which is beneficial to reducing the space occupied by the busbar assembly and has a simple structure.

[0008] According to some examples of the present invention, the plurality of phase connection bars and the star point connection bar each have a connection bar body extending along the circumferential direction of the stator winding.

[0009] According to some examples of the present invention, along the radial direction of the stator winding, a plurality of phase connection rows and star point connection rows have connection row pins on one side close to the stator winding, and the connection row pins are suitable for connecting to the output terminals of the stator winding.

[0010] According to some examples of the present invention, the connecting row pins are bent and extended in a direction away from the stator winding.

[0011] According to some examples of the present invention, along the axial direction of the stator winding, a plurality of phase connection rows and star point connection rows have connection terminals fixedly connected to the first connection portion on one side away from the stator winding, and the connection terminals are spaced apart from the corresponding connection row body.

[0012] According to some examples of the present invention, the connecting terminal has a connecting end surface, and the connecting terminal is suitable for connecting to a corresponding electrical connecting bar through the connecting end surface.

[0013] According to some examples of the present invention, the connecting terminal has a second connecting portion, the second connecting portion extends in a direction close to the corresponding connecting row body, and the second connecting portion is suitable for being fixedly connected to the corresponding electrical connecting row through a fastener.

[0014] According to some examples of the utility model, it also includes: a shell, which is wrapped around the outer surface of multiple phase connection rows and the outer surface of the star point connection row, and at least part of the connection row pins and at least part of the connection terminals are located outside the shell.

[0015] According to some examples of the present invention, the housing has a plurality of limiting parts arranged corresponding to the connection terminals, the limiting parts have limiting convex ribs, and the limiting convex ribs are suitable for abutting and limiting with the corresponding electrical connection row.

[0016] In a second aspect, an electric motor is provided, comprising a busbar assembly as in the embodiment of the first aspect.

[0017] According to the motor of the embodiment of the utility model, by setting the above-mentioned busbar assembly, the multiple phase connection bars in the busbar assembly are in the same horizontal plane and are spaced apart, and the star point connection bar and one phase connection bar among the multiple phase connection bars are stacked and spaced apart, thereby reducing the stacking between the connection bars, which is beneficial to reducing the space occupied by the busbar assembly and has a simple structure.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of a first phase connection bar, a second phase connection bar, a third phase connection bar and a star point connection bar according to an embodiment of the utility model;

[0020] Figure 2 is a schematic diagram of a first phase connection bar, a second phase connection bar, a third phase connection bar and a star point connection bar according to yet another embodiment of the utility model;

[0021] Figure 3 is a schematic diagram of a busbar assembly according to an embodiment of the utility model;

[0022] Figure 4 is a schematic diagram of a housing according to an embodiment of the utility model;

[0023] Figure 5 It is a schematic diagram of the connection between the stator winding and the busbar assembly according to one embodiment of the utility model;

[0024] Figure 6 The figure is a diagram showing the internal structure of a motor according to an embodiment of the utility model.

[0025] Reference numerals:

[0026] Busbar assembly 10;

[0027] A first phase connecting bar 11; a second phase connecting bar 12; a third phase connecting bar 13;

[0028] Star point connection row 2;

[0029] A first connecting row body 31; a second connecting row body 32; a third connecting row body 33; a fourth connecting row body 34;

[0030] A first connection row of pins 41; a second connection row of pins 42; a third connection row of pins 43; a fourth connection row of pins 44;

[0031] A first connecting portion 5;

[0032] Connecting terminal 6; connecting end surface 61; second connecting portion 62;

[0033] Shell 7; limiting portion 71; limiting rib 711;

[0034] stator winding 20;

[0035] Electrical connection bar 30;

[0036] Terminal block 40;

[0037] Stator core 50;

[0038] Fastener 60;

[0039] Motor 100. DETAILED DESCRIPTION

[0040] The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be construed as limiting the present invention.

[0041] The busbar assembly 10 and the motor 100 according to the embodiments of the present invention will be described below with reference to the accompanying drawings.

[0042] like Figure 1-Figure 6 As shown, the busbar assembly 10 according to the first embodiment of the utility model comprises: a plurality of phase connection bars and a star point connection bar 2 .

[0043] It should be noted that the busbar assembly 10 as an electrical connection structure in the motor 100 needs to be arranged inside the motor 100, wherein Figure 5 As shown, the motor 100 includes a stator core 50 and a stator winding 20. The stator core 50 has an installation space in the middle. The stator winding 20 is wound and arranged in the installation space. Optionally, the winding cable in the stator winding 20 can be a flat wire or a round wire, which is not specifically limited here. Furthermore, the bus assembly 10 is electrically connected to the output terminal of the stator winding 20.

[0044] Specifically, in some embodiments of the present application, the busbar assembly 10 is composed of a plurality of phase connection bars and a star point connection bar 2. It can be understood that the number of phase connection bars is set according to the actual needs of the motor 100, and the material of the phase connection bars and the star point connection bar 2 can be metal copper or metal aluminum, and no specific limitation is made here.

[0045] Furthermore, multiple phase connection rows and star point connection row 2 are suitable for being arranged along the circumferential direction of the stator winding 20, wherein the multiple phase connection rows are in the same horizontal plane and are spaced apart, and the star point connection row 2 is suitable for being stacked and spaced apart with one of the multiple phase connection rows along the axial direction of the stator winding 20, that is, multiple phase connection rows arranged in sequence and spaced apart along the circumferential direction of the stator winding 20 are at the same height, and the star point connection row 2 is stacked and spaced apart with one of the multiple phase connection rows along the axial direction of the stator winding 20 while being arranged with the multiple phase connection rows along the circumferential direction of the stator winding 20, that is, the multiple phase connection rows are at the same height layer, and the star point connection row 2 is at another height layer.

[0046] Further, as a specific example, Figure 1 and Figure 2 As shown, the busbar assembly 10 includes three phase connection bars and a star point connection bar 2 as an example for explanation, the three phase connection bars are respectively a first phase connection bar 11 (such as a W phase connection bar), a second phase connection bar 12 (such as a V phase connection bar) and a third phase connection bar 13 (such as a U phase connection bar), wherein, reference Figure 1 and Figure 5As shown, the first phase connection bar 11, the second phase connection bar 12 and the third phase connection bar 13 are arranged in sequence along the circumferential direction of the stator winding 20, and the first phase connection bar 11, the second phase connection bar 12 and the third phase connection bar 13 are ensured to be in the same horizontal plane, that is, the first phase connection bar 11, the second phase connection bar 12 and the third phase connection bar 13 are ensured to be in the same height layer. Further, along the axial direction of the stator winding 20, the star point connection bar 2 is stacked and spaced with the first phase connection bar 11, that is, the star point connection bar 2 and the first phase connection bar 11 are arranged at different height layers and a certain gap is ensured between the two to prevent short circuit faults between the two when power is turned on. In this way, the first phase connection bar 11, the second phase connection bar 12 and the third phase connection bar 13 are configured as a two-layer arrangement with the star point connection bar 2, thereby reducing the stacking between the connection bars, which is beneficial to reducing the space occupation of the busbar assembly 10, and the structure is simple.

[0047] According to the busbar assembly 10 of the embodiment of the utility model, multiple phase connection bars in the busbar assembly are in the same horizontal plane and are spaced apart, and the star point connection bar 2 is stacked and spaced apart with one of the multiple phase connection bars, thereby reducing the stacking between the connection bars, which is beneficial to reducing the space occupied by the busbar assembly 10 and has a simple structure.

[0048] In some embodiments of the present invention, Figure 1 and Figure 2 As shown, the plurality of phase connection bars and star point connection bars 2 each have a connection bar body extending along the circumferential direction of the stator winding 20 .

[0049] Specifically, the busbar assembly 10 includes three phase connection bars and one star point connection bar 2 as an example for explanation. Figure 1 As shown, the first phase connection row 11 has a first connection row body 31, the second phase connection row 12 has a second connection row body 32, the third phase connection row 13 has a third connection row body 33, and the star point connection row 2 has a fourth connection row body 34, wherein the first connection row body 31, the second connection row body 32, the third connection row body 33 and the fourth connection row body 34 all extend along the circumferential direction of the stator winding 20. Optionally, the first connection row body 31, the second connection row body 32, the third connection row body 33 and the fourth connection row body 34 are all constructed as arc structures extending along the circumferential direction of the stator winding 20. Such an arrangement facilitates the arrangement of multiple phase connection rows and the stacking arrangement with the star point connection row 2, which is beneficial to simplify the mutual positioning and combination process between multiple phase connection rows and the star point connection row 2.

[0050] It should be noted that when multiple phase connection bars and star point connection bars 2 are positioned and combined with each other, it is ensured that the connection bar bodies of the multiple phase connection bars are in the same horizontal plane, and the connection bar body of the star point connection bar 2 is stacked and spaced with one of the connection bar bodies of the multiple phase connection bars. For example, Figure 1 As shown, the fourth connection row body 34 is stacked and spaced apart from the first connection row body 31 , and the first connection row body 31 , the second connection row body 32 , and the third connection row body 33 are in the same horizontal plane.

[0051] In some embodiments of the present invention, Figure 1-Figure 3 As shown, along the radial direction of the stator winding 20 , a plurality of phase connection rows and a star point connection row 2 have connection row pins on one side close to the stator winding 20 , and the connection row pins are suitable for connecting to the outgoing terminals of the stator winding 20 .

[0052] Specifically, the busbar assembly 10 includes three phase connection bars and one star point connection bar 2 as an example for explanation. Figure 2 and Figure 5 As shown, the first phase connection row 11 has a first connection row pin 41, and the first connection row pin 41 is arranged on the side of the first phase connection row 11 close to the stator winding 20, and the second phase connection row 12 has a second connection row pin 42, and the second connection row pin 42 is arranged on the side of the second phase connection row 12 close to the stator winding 20, and the third phase connection row 13 has a third connection row pin 43, and the third connection row pin 43 is arranged on the side of the third phase connection row 13 close to the stator winding 20, and the star point connection row 2 has a fourth connection row pin 44, and the fourth connection row pin 44 is arranged on the side of the star point connection row 2 close to the stator winding 20. In this way, compared with the traditional pins arranged on both sides of the connection row, the present application arranges the connection row pins on the same side close to the stator winding 20, which is more convenient for the connection between the connection row pins and the output terminal of the stator winding 20. The connection method includes but is not limited to welding, etc., and the connection row pins are integrated on the corresponding connection row, which simplifies the structure of multiple phase connection rows and the star point connection row 2, which is conducive to improving the integration level of the connection row.

[0053] In some embodiments of the present invention, Figure 1 and Figure 5 As shown, the connection bar pins are bent and extended in a direction away from the stator winding 20. That is, the busbar assembly 10 including three phase connection bars and one star point connection bar 2 is used as an example for explanation. Figure 1 As shown, the connecting row pins can be constructed as connecting columns that bend and extend in a direction away from the stator winding 20. This arrangement makes it easier to weld the connecting row pins to the output terminals of the stator winding 20, eliminating the need for connection layout and simplifying the connection process.

[0054] In some embodiments of the present invention, Figure 1 and Figure 2 As shown, along the axial direction of the stator winding 20 , a plurality of phase connection bars and star point connection bars 2 have connection terminals 6 fixedly connected to the first connection portion 5 on one side away from the stator winding 20 , and the connection terminals 6 are spaced apart from the corresponding connection bar body.

[0055] Specifically, the busbar assembly 10 includes three phase connection bars and one star point connection bar 2 as an example for explanation. Figure 1 and Figure 2 As shown, the first phase connection bar 11, the second phase connection bar 12, the third phase connection bar 13 and the star point connection bar 2 have a connection terminal 6 fixedly connected to the first connection part 5 on the side away from the stator winding 20, wherein the first connection part 5 is bent and extended in a direction away from the stator winding 20, so that each connection terminal 6 is relatively spaced apart from the corresponding phase connection bar and the star point connection bar 2, that is, the connection terminal 6 of the first phase connection bar 11 is spaced apart from the first connection bar body 31, the connection terminal 6 of the second phase connection bar 12 is spaced apart from the second connection bar body 32, and the connection terminal 6 of the third phase connection bar 13 is spaced apart from the first connection bar body 34. The third connection row body 33 is spaced apart. When the first phase connection row 11 and the star point connection row 2 are stacked and spaced apart, the connection terminal 6 of the star point connection row 2 is spaced apart from the first connection row body 31. Such a setting can prevent the star point connection row 2 and the first phase connection row 11 from short circuiting. At the same time, the connection terminal 6 is integrated on the corresponding connection row, which further simplifies the structure of multiple phase connection rows and the star point connection row 2, and is more conducive to improving the integration level of the connection row. The four connection terminals 6 are arranged in sequence along the circumferential direction of the stator winding 20, which is conducive to reducing the spacing distance between the connection terminals 6 and making it more convenient to output the wires.

[0056] In some embodiments of the present invention, Figure 1 , Figure 2 and Figure 6 As shown, the connecting terminal 6 has a connecting end surface 61 , and the connecting terminal 6 is suitable for being connected to the corresponding electrical connecting bar 30 via the connecting end surface 61 .

[0057] Specifically, the electrical connection bar 30 is connected between the busbar assembly 10 and the terminal block 40. The busbar assembly 10 includes three phase connection bars and one star point connection bar 2. Figure 6As shown, the connection terminals 6 of the first phase connection bar 11, the second phase connection bar 12, the third phase connection bar 13 and the star point connection bar 2 are each electrically connected to an electrical connection bar 30 via a connection end face 61. By setting the connection end face 61, the contact area between the connection terminal 6 and the electrical connection bar 30 can be increased, which is beneficial to avoid the occurrence of poor contact.

[0058] In some embodiments of the present invention, Figure 1 , Figure 2 and Figure 6 As shown, the connecting terminal 6 has a second connecting portion 62 , which extends in a direction close to the corresponding connecting bar body. The second connecting portion 62 is suitable for being fixedly connected to the corresponding electrical connecting bar 30 through a fastener 60 .

[0059] Specifically, Figure 1 As shown, the connecting terminal 6 also includes a second connecting portion 62, which is located on a side of the connecting terminal 6 away from the connecting end surface 61, and the second connecting portion 62 extends in a direction close to the corresponding connecting row body. It can be understood that the second connecting portion 62 can be but is not limited to extending perpendicular to the connecting row body. For example, the second connecting portion 62 can be constructed as a riveted stud, and the fastener 60 can be a bolt. The bolt and the riveted stud are screwed together to achieve a fixed connection between the connecting terminal 6 and the corresponding electrical connection row 30. Such a setting is conducive to improving the connection strength between the phase connection row, the star point connection row 2 and the corresponding electrical connection row 30, thereby improving the stability of the operation of the motor 100.

[0060] It should be noted that when the second connection part 62 extends in the direction close to the corresponding connection row body, it is necessary to ensure that there is a certain gap between the second connection part 62 and the corresponding connection row body to avoid short circuit. For example, the second connection part 62 of the first phase connection row 11 is spaced apart from the first connection row body 31, the second connection part 62 of the second phase connection row 12 is spaced apart from the second connection row body 32, and the second connection part 62 of the third phase connection row 13 is spaced apart from the third connection row body 33. When the first phase connection row 11 and the star point connection row 2 are stacked and spaced apart, the second connection part 62 of the star point connection row 2 is spaced apart from the first connection row body 31.

[0061] In some embodiments of the present invention, Figure 3 and Figure 4 As shown, it also includes: a shell 7, which wraps around the outer surface of multiple phase connection rows and the outer surface of the star point connection row 2, and at least part of the connection row pins and at least part of the connection terminals 6 are located outside the shell 7.

[0062] Specifically, the busbar assembly 10 further includes a housing 7, which is wrapped around the outer surfaces of the plurality of phase connection bars and the outer surface of the star point connection bar 2. The busbar assembly 10 including three phase connection bars and one star point connection bar 2 is further described as an example. Figure 3 As shown, the outer surface of the first phase connection bar 11, the outer surface of the second phase connection bar 12, the outer surface of the third phase connection bar 13 and the outer surface of the star point connection bar 2 are wrapped by the shell 7. It can be understood that when the shell 7 wraps the outer surface of the first phase connection bar 11, the outer surface of the second phase connection bar 12, the outer surface of the third phase connection bar 13 and the outer surface of the star point connection bar 2, the shell 7 can fill the gap between the first phase connection bar 11, the second phase connection bar 12, the third phase connection bar 13 and the star point connection bar 2. For example, the shell 7 and the first phase connection bar 11, the second phase connection bar 12, the third phase connection bar 13 and the star point connection bar 2 are integrally injection molded, and the injection molding material can be selected as PPS / GF30 material. During the integral injection molding process, the injection molding material can fill the gap, thereby realizing the insulation function, preventing the high voltage from breaking down the insulation of the busbar assembly 10, causing the ground short-circuit motor 100 to burn, and at the same time, it is also beneficial to improve the integration level of the busbar assembly 10.

[0063] Furthermore, when the outer shell 7 is wrapped around the outer surface of multiple phase connection rows and the outer surface of the star point connection row 2, it is necessary to ensure that at least part of the connection row pins and at least part of the connection terminals 6 are located outside the outer shell 7, such as making the connection end surface 61 of the connection terminal 6 exposed outside the outer shell 7, etc., so as to facilitate the welding of the connection row pins and the output end of the stator winding 20, and the fixed connection between each connection terminal 6 and the corresponding electrical connection row 30.

[0064] In some embodiments of the present invention, Figure 3 and Figure 4 As shown, the housing 7 has a plurality of limiting portions 71 arranged corresponding to the connection terminals 6 . The limiting portions 71 have limiting ribs 711 . The limiting ribs 711 are suitable for abutting and limiting with the corresponding electrical connection row 30 .

[0065] Specifically, continuing to explain by taking the busbar assembly 10 including three phase connection bars and one star point connection bar 2 as an example, the connection terminals 6 of the first phase connection bar 11, the connection terminals 6 of the second phase connection bar 12, the connection terminals 6 of the third phase connection bar 13 and the connection terminals 6 of the star point connection bar 2 are each provided with a corresponding limiting portion 71, and each limiting portion 71 has a limiting rib 711. For example, the limiting portion 71 is provided with two limiting ribs 711 at intervals. It can be understood that the height of the limiting rib 711 needs to be set to be higher than the connection end surface 61 of the connection terminal 6. With such a setting, when the electrical connection bar 30 is assembled with the corresponding connection terminal 6, the limiting rib 711 can abut against the corresponding electrical connection bar 30 for limiting, thereby preventing the electrical connection bar 30 from rotating when the electrical connection bar 30 is fixedly connected to the corresponding connection terminal 6 (such as tightening bolts, etc.), which is beneficial to improving assembly efficiency.

[0066] The motor 100 according to the second embodiment of the utility model includes the busbar assembly 10 as in the first embodiment.

[0067] According to the motor 100 of the embodiment of the utility model, by setting the above-mentioned busbar assembly 10, multiple phase connection bars in the busbar assembly are in the same horizontal plane and are spaced apart, and the star point connection bar 2 and one phase connection bar among the multiple phase connection bars are stacked and spaced apart, thereby reducing the stacking between the connection bars, which is beneficial to reducing the space occupied by the busbar assembly 10 and has a simple structure.

[0068] In the description of the present utility model, it is necessary to understand that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing 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 understood as a limitation on the present utility model. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0069] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0070] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0071] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A busbar assembly (10), It is characterized in that The busbar assembly (10) is arranged in the motor (100) and connected to the output terminal of the stator winding (20) of the motor (100), and the busbar assembly (10) comprises: A plurality of phase connection rows and a star point connection row (2), wherein the plurality of phase connection rows and the star point connection row (2) are both suitable for being arranged along the circumferential direction of the stator winding (20), wherein the plurality of phase connection rows are located in the same horizontal plane and are spaced apart, and the star point connection row (2) is suitable for being stacked and spaced apart from one of the plurality of phase connection rows along the axial direction of the stator winding (20).

2. The busbar assembly (10) according to claim 1, It is characterized in that The plurality of phase connection bars and the star point connection bar (2) each have a connection bar body extending along the circumferential direction of the stator winding (20).

3. The busbar assembly (10) according to claim 2, It is characterized in that Along the radial direction of the stator winding (20), a plurality of the phase connection rows and the star point connection row (2) have connection row pins on one side close to the stator winding (20), and the connection row pins are suitable for being connected to the output terminal of the stator winding (20).

4. The busbar assembly (10) according to claim 3, It is characterized in that The connecting row pins are bent and extended in a direction away from the stator winding (20).

5. The busbar assembly (10) according to claim 3, It is characterized in that Along the axial direction of the stator winding (20), a plurality of the phase connection bars and the star point connection bar (2) have connection terminals (6) fixedly connected to the first connection portion (5) on a side away from the stator winding (20), and the connection terminals (6) are spaced apart from the corresponding connection bar body.

6. The busbar assembly (10) according to claim 5, It is characterized in that The connecting terminal (6) has a connecting end surface (61), and the connecting terminal (6) is suitable for being connected to a corresponding electrical connecting row (30) via the connecting end surface (61).

7. The busbar assembly (10) according to claim 6, It is characterized in that The connecting terminal (6) has a second connecting portion (62), the second connecting portion (62) extending in a direction close to the corresponding connecting row body, and the second connecting portion (62) is suitable for being fixedly connected to the corresponding electrical connecting row (30) through a fastener (60).

8. The busbar assembly (10) according to claim 6, It is characterized in that Also includes: A shell (7), the shell (7) wraps around the outer surfaces of the plurality of phase connection bars and the outer surface of the star point connection bar (2), and at least part of the connection bar pins and at least part of the connection terminals (6) are located outside the shell (7).

9. The busbar assembly (10) according to claim 8, It is characterized in that The housing (7) has a plurality of limiting portions (71) arranged corresponding to the connection terminals (6), and the limiting portions (71) have limiting convex ribs (711), and the limiting convex ribs (711) are suitable for abutting and limiting with the corresponding electrical connection row (30).

10. An electric motor (100), It is characterized in that It comprises a busbar assembly (10) according to any one of claims 1 to 9.

Images