Busbar assembly, electrical device module, motor controller, and vehicle

Abstract

This disclosure relates to a busbar assembly, an electrical component module, a motor controller, and a vehicle. The busbar assembly includes a positive busbar and a negative busbar, which are at least partially opposite and spaced apart. The positive busbar is used to electrically connect a first positive terminal of a first electrical component and a second positive terminal of a second electrical component. The negative busbar is used to electrically connect a first negative terminal of the first electrical component and a second negative terminal of the second electrical component. The positive busbar has at least one first positioning part for positioning and cooperating with the first and / or second electrical components; and / or, the negative busbar has at least one second positioning part for positioning and cooperating with the first and / or second electrical components. The aforementioned first and / or second positioning parts provide positioning functionality, eliminating the need for separate tooling for positioning, improving assembly convenience, reducing costs, and lowering production line requirements.

Description

Technical Field

[0001] This disclosure relates to the field of vehicle component technology, specifically to a busbar assembly, an electrical component module, a motor controller, and a vehicle. Background Technology

[0002] In motor controllers, capacitors and IGBT (Insulated Gate Bipolar Transistor) modules are the two most critical components. When making electrical connections, the positive terminal of the capacitor needs to be connected to the positive terminal of the IGBT module, and the negative terminal of the capacitor needs to be connected to the negative terminal of the IGBT module.

[0003] In related technologies, capacitors or IGBT modules are often integrated into the busbar. When connecting them, tooling is often required for positioning, which is inconvenient to assemble, costly, and places high demands on the production line. Utility Model Content

[0004] To overcome the problems existing in the related technologies, this disclosure provides a connection component, a steering mechanism, and a vehicle.

[0005] According to a first aspect of the present disclosure, a busbar assembly is provided, the busbar assembly including a positive busbar and a negative busbar that are independent of each other;

[0006] The positive busbar and the negative busbar are at least partially opposite to each other and spaced apart;

[0007] The positive busbar is used to electrically connect the first positive terminal of the first electrical device and the second positive terminal of the second electrical device;

[0008] The negative busbar is used to electrically connect the first negative terminal of the first electrical device and the second negative terminal of the second electrical device;

[0009] The positive busbar is provided with at least one first positioning part, which is used to position and cooperate with the first electrical component and / or the second electrical component; and / or, the negative busbar is provided with at least one second positioning part, which is used to position and cooperate with the first electrical component and / or the second electrical component.

[0010] By providing at least one first positioning part on the positive busbar and / or at least one second positioning part on the negative busbar, the positive busbar and / or negative busbar can be positioned during assembly without the need for separate tooling, thereby improving assembly convenience, reducing costs, and lowering requirements on the production line.

[0011] In some embodiments, the positive busbar includes a positive busbar body, at least one first positive connection portion and at least one second positive connection portion, wherein the first positive connection portion and the second positive connection portion are disposed on the positive busbar body;

[0012] The first positive terminal connection is used to electrically connect to the first positive terminal of the first electrical device, and the second positive terminal connection is used to electrically connect to the second positive terminal of the second electrical device;

[0013] Wherein, at least one of the first positive electrode connection portions is provided with the first positioning portion; and / or, at least one of the second positive electrode connection portions is provided with the first positioning portion.

[0014] The system includes a first positive terminal connection for easy electrical connection to the first positive terminal of a first electrical device, and a second positive terminal connection for easy electrical connection to the second positive terminal of a second electrical device. The first positive terminal connection may include a first positioning part for positioning and engaging with the first positive terminal of the first electrical device, improving the ease and accuracy of assembly with the first electrical device. Similarly, the second positive terminal connection may also include a first positioning part for positioning and engaging with the second positive terminal of the second electrical device, improving the ease and accuracy of assembly with the second electrical device.

[0015] In some embodiments, the positive busbar body extends along a first direction;

[0016] The first positive electrode connection part is configured as multiple parts, and the multiple first positive electrode connection parts are arranged on one side of the positive electrode busbar body along the second direction and are spaced apart in pairs along the first direction;

[0017] The second positive electrode connection part is configured as multiple parts, and the multiple second positive electrode connection parts are arranged on the other side of the positive electrode busbar body along the second direction and are spaced apart in pairs along the first direction;

[0018] The first positioning part is provided on each of the two first positive electrode connection portions located on both sides of the first direction; and / or, the first positioning part is provided on each of the two second positive electrode connection portions located on both sides of the first direction; the first direction and the second direction are intersecting.

[0019] The first and second directions are arranged intersecting, resulting in a matrix distribution of the first and second positive electrode connections, which disperses the current paths and avoids excessively high local current density. Furthermore, the aforementioned first and second positive electrode connections are arranged on both sides of the positive busbar body, making full use of the space on both sides of the positive busbar body in the second direction. However, this disclosure does not limit the specific arrangement of the positive busbar body, the first positive electrode connection, and the second positive electrode connection.

[0020] In some embodiments, the positive busbar body, the first positive connection portion, the second positive connection portion, and the first positioning portion are constructed as an integral structure; and the first positioning portion is disposed at an angle on the first positive connection portion and / or the second positive connection portion.

[0021] One-piece molding eliminates welded or riveted joints, reducing stress concentration points and improving tensile strength. For example, the positive busbar body, the first positive connection part, the second positive connection part, and the first positioning part can be formed by stamping copper busbars. The first positioning part can be constructed as a first positioning hook, which is constructed in the form of a flange and is connected at an angle to the edge of the first positive connection part and / or the edge of the second positive connection part.

[0022] In some embodiments, the first positive terminal connection includes a first bending section and a first connecting section. The first bending section is connected at an angle to the positive busbar body and is connected to the first connecting section. The first connecting section is used to electrically connect to the first positive terminal of the first electrical device.

[0023] Firstly, the design of the first bending section can change the current path direction, reduce the loop area between parallel conductors, and suppress magnetic flux coupling. Secondly, by setting the first bending section and the first connecting section, it can ensure greater flexibility in physical spatial layout and facilitate electrical connection. In addition, the design of the first bending section can also absorb vibration and impact to a certain extent, reduce the stress directly acting on the electrical connection point, reduce the risk of loosening caused by long-term vibration, and improve safety performance.

[0024] The second positive terminal connection includes a second bending section and a second connecting section. The second bending section is connected at an angle to the positive busbar body and is connected to the second connecting section. The second connecting section is used to electrically connect to the second positive terminal of the second electrical device.

[0025] Firstly, the design of the second bend can change the current path direction, reduce the loop area between parallel conductors, and suppress magnetic flux coupling. Secondly, by setting the second bend and the second connection section, it can ensure greater flexibility in physical spatial layout and facilitate electrical connection. In addition, the design of the second bend can also absorb vibration and impact to a certain extent, reduce the stress directly acting on the electrical connection point, reduce the risk of loosening caused by long-term vibration, and improve safety performance.

[0026] In some embodiments, the busbar assembly further includes a first insulating layer disposed on the surfaces of the positive busbar body, the first bent section, and the second bent section on a first side along the thickness direction; and / or, the busbar assembly further includes a second insulating layer disposed on the surfaces of the positive busbar body, the first bent section, and the second bent section on a second side along the thickness direction.

[0027] By covering the positive busbar body and the two sides of its bent section with an insulating layer, accidental contact with the negative busbar or other conductive components can be effectively avoided, thereby greatly reducing the risk of short circuit.

[0028] In some embodiments, the thickness of the first insulating layer and / or the second insulating layer is between 0.1 mm and 0.5 mm.

[0029] By limiting the thickness of the first insulating layer and / or the second insulating layer, it is possible to effectively avoid the positive busbar from being too thick and occupying more space due to the setting of the first and second insulating layers, which would be inconvenient for compact arrangement in small spaces.

[0030] In some embodiments, the first connecting segment is used to connect to the first positive terminal of the first electrical device by laser welding; and / or, the second connecting segment is used to connect to the second positive terminal of the second electrical device by laser welding.

[0031] Among them, the laser welding method is used to connect the parts, which is stable and requires little space, making it easy to miniaturize and lighten the layout. This effectively solves the problem of large volume caused by fasteners such as bolts.

[0032] In some embodiments, the negative busbar includes a negative busbar body and at least one negative connection portion, wherein the negative connection portion is disposed on the negative busbar body;

[0033] The negative terminal connection is used to electrically connect with the first negative terminal of the first electrical device, and the negative busbar body is used to electrically connect with the second negative terminal of the second electrical device.

[0034] Wherein, at least one of the negative electrode connection portions is provided with the second positioning portion; and / or, the negative electrode busbar body is provided with the second positioning portion.

[0035] By setting a second positioning part, it can be ensured that the negative busbar can be accurately aligned to the predetermined position during the assembly process. This helps to reduce poor contact problems caused by assembly errors, ensure the stability and reliability of electrical connections, and also reduce costs and production line requirements.

[0036] In some embodiments, the negative busbar body extends along a first direction;

[0037] The negative electrode connection part is configured as a plurality of such negative electrode connection parts, which are arranged on one side of the negative electrode busbar body along the second direction and spaced apart in pairs along the first direction.

[0038] The second positioning part is configured as two parts, which are respectively disposed on both sides of the negative busbar body along the first direction, for positioning and cooperating with the second electrical component;

[0039] The first direction and the second direction are intersecting.

[0040] By providing second positioning parts on both sides of the negative busbar body along the first direction, it can be ensured that the negative busbar can be accurately aligned and fixed with the second electrical component, thereby guaranteeing the accuracy and reliability of the electrical connection. Furthermore, the two second positioning parts, located on both sides of the negative busbar body along the first direction, help provide stable support and fixation at multiple points, reducing displacement or loosening caused by vibration or other external forces, and enhancing the mechanical strength of the entire structure.

[0041] In some embodiments, the negative busbar body, the negative connection portion, and the second positioning portion are constructed as an integrally formed structure; and the second positioning portion is disposed at an angle on the negative busbar body and / or the negative connection portion.

[0042] One-piece molding eliminates welded or riveted joints, reducing stress concentration points and improving tensile strength. For example, the negative busbar body, negative connection part, and second positioning part can be formed by stamping copper busbars. The second positioning part can be constructed as a second positioning hook, which is constructed in the form of a flange and is connected at an angle to the edge of the negative busbar body and / or the edge of the negative connection part.

[0043] In some embodiments, the busbar assembly further includes a third insulating layer disposed on at least a portion of the surface of the negative busbar body on a first side along the thickness direction; and / or, the busbar assembly further includes a fourth insulating layer disposed on at least a portion of the surface of the negative busbar body on a second side along the thickness direction.

[0044] By providing a third insulating layer in at least a portion of the first side surface of the negative busbar body and / or a fourth insulating layer in at least a portion of the second side surface, accidental contact with the positive busbar or other conductive components can be effectively avoided, thereby greatly reducing the risk of short circuit.

[0045] In some embodiments, the negative busbar body includes at least one first body segment and at least one second body segment, wherein the first body segment and the negative connection portion are disposed opposite to each other in a second direction, and the second body segment is disposed offset from the negative connection portion in a second direction.

[0046] In this embodiment, at least one of the second body segments is provided with the third insulating layer and the fourth insulating layer on both sides along its thickness direction, and the third insulating layer and the fourth insulating layer are connected to each other.

[0047] By arranging a third and fourth insulating layer on both sides of the second body section and connecting them to each other, accidental contact with the positive busbar or other conductive components can be effectively prevented, thereby greatly reducing the risk of short circuits. The first body section and the negative connection part are arranged opposite each other in the second direction, while the second body section and the negative connection part are arranged staggered in the second direction. This design makes the overall structure more compact and facilitates the arrangement of the third and fourth insulating layers.

[0048] In some embodiments, the positive busbar includes a positive busbar body, and at least two first positive connection portions and at least two second positive connection portions disposed on the positive busbar body, wherein the first positive connection portions are disposed at intervals between each other, and the second positive connection portions are disposed at intervals between each other.

[0049] Wherein, at least a portion of the negative electrode connection is located between two adjacent first positive electrode connections, and the negative electrode connection is arranged flush with the first positive electrode connection; or, at least a portion of the negative electrode connection is located between two adjacent second positive electrode connections, and the negative electrode connection is arranged flush with the second positive electrode connection.

[0050] By placing the negative electrode connection between two adjacent first positive electrode connections or between two adjacent second positive electrode connections, and arranging them flush, a more compact design can be achieved within a limited space. This layout effectively utilizes available space and reduces the overall volume.

[0051] In some embodiments, the positive busbar body and the negative busbar body are positioned opposite each other and spaced apart in a third direction;

[0052] The distance between the positive busbar body and the negative busbar body in the third direction is between 1.5 mm and 3 mm.

[0053] By limiting the distance as described above, while ensuring the insulation interval, the positive busbar body and the negative busbar body can be brought as close as possible, thereby shortening the current path and making the magnetic field cancellation stronger, thus reducing ESL.

[0054] In some embodiments, the thickness of the positive busbar is between 0.4 mm and 0.8 mm; and / or, the thickness of the negative busbar is between 0.4 mm and 0.8 mm.

[0055] The above-mentioned limitations prevent the negative busbar from being too thick, which is conducive to the design of thinner, smaller and lighter components.

[0056] According to a second aspect of the present disclosure, an electrical component module is also provided, the electrical component module including a first electrical component, a second electrical component, and the busbar assembly.

[0057] In some embodiments, the first electrical device includes an IGBT module, and the second electrical device includes a capacitor;

[0058] The first positive terminal of the IGBT module is provided with a first positioning element that cooperates with the first positioning part; and / or, the second positive terminal of the capacitor is provided with a second positioning element that cooperates with the first positioning part;

[0059] The first negative terminal of the IGBT module is provided with a third positioning element that cooperates with the second positioning part; and / or, the second negative terminal of the capacitor is provided with a fourth positioning element that cooperates with the second positioning part.

[0060] The aforementioned positioning coordination can improve the stability and accuracy of positioning.

[0061] According to a third aspect of the present disclosure, a motor controller is also provided, the motor controller including the aforementioned electrical component module.

[0062] According to a fourth aspect of the present disclosure, a vehicle is also provided, the vehicle including the aforementioned electrical component module; or, the vehicle including the aforementioned motor controller.

[0063] The technical solutions provided by the embodiments of this disclosure can include the following beneficial effects: First, by setting the positive busbar and negative busbar independently and spaced apart, the electrical isolation between them can be effectively increased, reducing the risk of short circuits and improving safety performance. Second, by setting the positive busbar and negative busbar spaced apart and opposite to each other, a closed loop can be formed, reducing parasitic inductance. Furthermore, by providing at least one first positioning part on the positive busbar and / or at least one second positioning part on the negative busbar, positioning can be provided during the assembly of the positive busbar and / or negative busbar, eliminating the need for separate tooling for positioning, improving assembly convenience, reducing costs, and lowering requirements on the production line.

[0064] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0065] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0066] Figure 1 This is an exploded structural diagram of a busbar assembly according to one embodiment of the present disclosure.

[0067] Figure 2 This is a schematic diagram of the structure of a busbar assembly according to one embodiment of the present disclosure.

[0068] Figure 3 This is a schematic diagram of the structure of the first insulating layer, the positive busbar, and the second insulating layer of a busbar assembly according to one embodiment of the present disclosure.

[0069] Figure 4 This is a schematic diagram of the structure of the third insulating layer, the negative busbar, and the fourth insulating layer of a busbar assembly according to one embodiment of the present disclosure.

[0070] Explanation of reference numerals in the attached figures

[0071] 1. Positive busbar; 10. Positive busbar body; 11. First positive connection part; 111. First bending section; 112. First connection section; 12. Second positive connection part; 121. Second bending section; 122. Second connection section;

[0072] 2. Negative busbar; 20. Negative busbar body; 201. First body section; 202. Second body section; 21. Negative connection part;

[0073] 3. First insulating layer; 4. Second insulating layer; 5. Third insulating layer; 6. Fourth insulating layer; 100. First positioning part; 200. Second positioning part;

[0074] A. First direction; B. Second direction; C. Third direction. Detailed Implementation

[0075] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this disclosure as detailed in the appended claims.

[0076] In this disclosure, unless otherwise stated, the directional terms "first direction," "second direction," and "third direction" refer to three intersecting directions. For example, the first direction, second direction, and third direction can be perpendicular to each other. See [reference needed] for details. Figure 1 As shown. The terms used, such as "first" and "second," are only used to distinguish one element from another and do not indicate any order or importance.

[0077] In the description of this disclosure, it should also be noted that, unless otherwise expressly specified and limited, the terms "setup" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0078] Reference Figures 1 to 4 As shown, this disclosure provides a busbar assembly, which includes a positive busbar 1 and a negative busbar 2 that are independent of each other; the positive busbar 1 and the negative busbar 2 are at least partially opposite to each other and spaced apart; the positive busbar 1 is used to electrically connect a first positive terminal of a first electrical device and a second positive terminal of a second electrical device; the negative busbar 2 is used to electrically connect a first negative terminal of the first electrical device and a second negative terminal of the second electrical device; wherein, the positive busbar 1 is provided with at least one first positioning part 100, which is used to position and cooperate with the first electrical device and / or the second electrical device; and / or, the negative busbar 2 is provided with at least one second positioning part 200, which is used to position and cooperate with the first electrical device and / or the second electrical device.

[0079] In the above technical solution, firstly, by independently and spaced apart from each other, the electrical isolation between the two can be effectively increased, reducing the risk of short circuits and improving safety performance. Secondly, by arranging the positive busbar 1 and the negative busbar 2 opposite to each other at intervals, a closed loop can be formed, reducing parasitic inductance. Furthermore, by providing at least one first positioning part 100 on the positive busbar 1 and / or at least one second positioning part 200 on the negative busbar 2, positioning can be provided for the positive busbar 1 and / or the negative busbar 2 during assembly, eliminating the need for separate tooling for positioning, improving assembly convenience, reducing costs, and lowering requirements on the production line.

[0080] Optionally, refer to Figures 1 to 3As shown, the positive busbar 1 includes a positive busbar body 10, at least one first positive connection portion 11, and at least one second positive connection portion 12. The first positive connection portion 11 and the second positive connection portion 12 are disposed on the positive busbar body 10. The first positive connection portion 11 is used to electrically connect to the first positive terminal of the first electrical device, and the second positive connection portion 12 is used to electrically connect to the second positive terminal of the second electrical device. At least one first positive connection portion 11 is provided with a first positioning portion 100; and / or, at least one second positive connection portion 12 is provided with a first positioning portion 100.

[0081] In this embodiment, a first positive terminal connection 11 is provided to facilitate electrical connection with the first positive terminal of the first electrical device, and a second positive terminal connection 12 is provided to facilitate electrical connection with the second positive terminal of the second electrical device. The number of the first positive terminal connection 11 and the second positive terminal connection 12 is not limited in this disclosure. Furthermore, the first positive terminal connection 11 may be provided with a first positioning part 100, which can be positioned and engaged with the first positive terminal of the first electrical device, improving the convenience and accuracy of assembly with the first electrical device; the second positive terminal connection 12 may also be provided with a first positioning part 100, which can be positioned and engaged with the second positive terminal of the second electrical device, improving the convenience and accuracy of assembly with the second electrical device.

[0082] In one implementation, reference Figures 1 to 3 As shown, the positive busbar body 10 extends along the first direction A; multiple first positive connection portions 11 are provided, which are arranged on one side of the positive busbar body along the second direction and spaced apart in pairs along the first direction; multiple second positive connection portions 12 are provided, which are arranged on the other side of the positive busbar body 10 along the second direction B and spaced apart in pairs along the first direction A; wherein, the two first positive connection portions 11 located on both sides along the first direction A are respectively provided with a first positioning portion 100; and / or, the two second positive connection portions 12 located on both sides along the first direction A are respectively provided with a first positioning portion 100; the first direction A and the second direction B intersect.

[0083] In this embodiment, the first direction A and the second direction B are arranged intersecting, so that the first positive terminal connection 11 and the second positive terminal connection 12 are distributed in a matrix, dispersing the current path and avoiding excessively high local current density. Furthermore, the aforementioned first positive terminal connection 11 and second positive terminal connection 12 are arranged on both sides of the positive busbar body 1, making full use of the space on both sides of the positive busbar body 1 in the second direction B. However, this disclosure does not limit the specific arrangement of the positive busbar body 1, the first positive terminal connection 11, and the second positive terminal connection 12.

[0084] Optionally, the positive busbar body 10, the first positive connection part 11, the second positive connection part 12, and the first positioning part 100 are constructed as an integral structure; and the first positioning part 100 is disposed at an angle on the first positive connection part 11 and / or the second positive connection part 12.

[0085] In this embodiment, the integral molding process eliminates welded or riveted joints, reducing stress concentration points and improving tensile strength. For example, the positive busbar body 10, the first positive connection part 11, the second positive connection part 12, and the first positioning part 100 can be formed by stamping copper busbars. The first positioning part 100 can be constructed as a first positioning hook, which is constructed in the form of a flange and is connected at an angle to the edge of the first positive connection part 11 and / or the edge of the second positive connection part 12.

[0086] Optionally, refer to Figure 1 As shown, the first positive terminal connection 11 includes a first bending section 111 and a first connecting section 112. The first bending section 111 is connected to the positive busbar body 10 at an angle and is connected to the first connecting section 112. The first connecting section 112 is used to electrically connect to the first positive terminal of the first electrical device.

[0087] In this embodiment, firstly, the design of the first bending segment 111 can change the current path direction, reduce the loop area between parallel conductors, and suppress magnetic flux coupling; secondly, by setting the first bending segment 111 and the first connecting segment 112, it can ensure greater flexibility in physical spatial layout and facilitate electrical connection; in addition, the design of the first bending segment 111 can also absorb vibration and impact to a certain extent, reduce the stress directly acting on the electrical connection point, reduce the risk of loosening caused by long-term vibration, and improve safety performance.

[0088] Optionally, refer to Figure 1 As shown, the second positive terminal connection 12 includes a second bending section 121 and a second connecting section 122. The second bending section 121 is connected to the positive busbar body 10 at an angle and is connected to the second connecting section 122. The second connecting section 122 is used to electrically connect to the second positive terminal of the second electrical device.

[0089] In this embodiment, firstly, the design of the second bending segment 121 can change the current path direction, reduce the loop area between parallel conductors, and suppress magnetic flux coupling; secondly, by setting the second bending segment 121 and the first connecting segment 122, it can ensure greater flexibility in physical spatial layout and facilitate electrical connection; in addition, the design of the second bending segment 121 can also absorb vibration and impact to a certain extent, reduce the stress directly acting on the electrical connection point, reduce the risk of loosening caused by long-term vibration, and improve safety performance.

[0090] In another embodiment, refer to Figure 1 and Figure 3 As shown, the busbar assembly further includes a first insulating layer 3, which is disposed on the surface of the positive busbar body 10, the first bent section 111 and the second bent section 121 on a first side along the thickness direction; and / or, the busbar assembly further includes a second insulating layer 4, which is disposed on the surface of the positive busbar body 10, the first bent section 111 and the second bent section 121 on a second side along the thickness direction.

[0091] In this embodiment, by covering the positive busbar body 10 and the two sides of its bent sections (first bent section 111 and second bent section 121) with an insulating layer, accidental contact with the negative busbar 2 or other conductive components can be effectively avoided, thereby greatly reducing the risk of short circuit.

[0092] Optionally, the thickness of the first insulating layer 3 and / or the second insulating layer 4 is between 0.1 mm and 0.5 mm. For example, the thickness of the first insulating layer 3 and the second insulating layer 4 can be 0.1 mm, or 0.3 mm, or 0.5 mm. That is, by limiting the thickness of the first insulating layer 3 and / or the second insulating layer 4, it is possible to effectively avoid the positive busbar 1 becoming too thick and occupying more space due to the arrangement of the first insulating layer 3 and the second insulating layer 4, which would be inconvenient for compact arrangement in a small space.

[0093] Optionally, the first connecting segment 112 can be used to connect with the first positive terminal of the first electrical device by laser welding. This connection is stable and requires little space, which is conducive to miniaturization and lightweight layout, effectively solving the problem of large volume caused by fastener connection methods such as bolts.

[0094] Optionally, the second connecting section 122 is used to connect with the second positive terminal of the second electrical device by laser welding. The connection is stable and uses little space, which is conducive to miniaturization and lightweight layout, and effectively solves the problem of large volume caused by fastener connection methods such as bolts.

[0095] In other implementations, refer to Figure 1 and Figure 4 As shown, the negative busbar 2 includes a negative busbar body 20 and at least one negative connection portion 21, the negative connection portion 21 being disposed on the negative busbar body 20; the negative connection portion 21 is used for electrical connection with the first negative terminal of the first electrical device, and the negative busbar body 20 is used for electrical connection with the second negative terminal of the second electrical device; wherein, at least one negative connection portion 21 is provided with a second positioning portion 200; and / or, the negative busbar body 20 is provided with a second positioning portion 200.

[0096] In this embodiment, the negative terminal connection 21 is used to make an electrical connection with the first negative terminal of the first electrical device, and the negative busbar body 20 is used to make an electrical connection with the second negative terminal of the second electrical device. By providing the second positioning part 200, it can be ensured that the negative busbar 2 can be accurately aligned to the predetermined position during the assembly process. This helps to reduce the problem of poor contact caused by assembly errors, ensure the stability and reliability of the electrical connection, and also reduce costs and requirements on the production line.

[0097] Optionally, refer to Figure 1 and Figure 4 As shown, the negative busbar body 20 extends along the first direction A; multiple negative connection parts 21 are provided, and the multiple negative connection parts 21 are arranged on one side of the negative busbar body 20 along the second direction B and are spaced apart in pairs along the first direction A; two second positioning parts 200 are provided, and the two second positioning parts 200 are respectively provided on both sides of the negative busbar body 20 along the first direction A, so as to be used for positioning and cooperating with the second electrical device; the first direction A and the second direction B are intersected.

[0098] In this embodiment, by providing second positioning portions 200 on both sides of the negative busbar body 20 along the first direction A, it can be ensured that the negative busbar can be accurately aligned and fixed with the second electrical component, thereby guaranteeing the accuracy and reliability of the electrical connection. Furthermore, the two second positioning portions 200, located on both sides of the negative busbar body 20 along the first direction A, help provide stable support and fixation at multiple points, reducing displacement or loosening caused by vibration or other external forces, and enhancing the mechanical strength of the entire structure.

[0099] Optionally, the negative busbar body 20, the negative connection part 21, and the second positioning part 200 are constructed as an integral structure; and the second positioning part 200 is disposed at an angle on the negative busbar body 20 and / or the negative connection part 21.

[0100] In this embodiment, the integral molding process eliminates welded or riveted joints, reducing stress concentration points and improving tensile strength. For example, the negative busbar body 20, the negative connection portion 21, and the second positioning portion 200 can be formed by stamping copper busbars. The second positioning portion 200 can be constructed as a second positioning hook, which is constructed in the form of a flange and is connected at an angle to the edge of the negative busbar body 20 and / or the edge of the negative connection portion 21.

[0101] Optionally, refer to Figure 1 and Figure 4As shown, the busbar assembly further includes a third insulating layer 5, which is disposed on at least a portion of the surface of the negative busbar body 20 on a first side along the thickness direction; and / or, the busbar assembly further includes a fourth insulating layer 6, which is disposed on at least a portion of the surface of the negative busbar body 20 on a second side along the thickness direction.

[0102] By providing a third insulating layer 5 in at least a portion of the first side surface of the negative busbar body 20 and / or a fourth insulating layer 6 in at least a portion of the second side surface, accidental contact with the positive busbar 1 or other conductive components can be effectively avoided, thereby greatly reducing the risk of short circuit.

[0103] Optionally, the thickness of the third insulating layer 5 and / or the fourth insulating layer 6 is between 0.1 mm and 0.5 mm. For example, the thickness of the third insulating layer 5 and the fourth insulating layer 6 can be 0.1 mm, or 0.3 mm, or 0.5 mm. That is, by limiting the thickness of the third insulating layer 5 and / or the fourth insulating layer 6, it is possible to effectively avoid the negative busbar 2 becoming too thick and occupying more space due to the arrangement of the third insulating layer 5 and the fourth insulating layer 6, which would be inconvenient for compact arrangement in small spaces.

[0104] Optionally, the negative terminal connection 21 can be used to connect with the first negative terminal of the first electrical device by laser welding, and the negative terminal busbar body 20 can be used to connect with the second negative terminal of the second electrical device by laser welding; the connection is stable and uses little space, which is conducive to miniaturization and lightweight arrangement, and effectively solves the problem of large volume caused by fastener connection methods such as bolts.

[0105] In another embodiment, refer to Figure 1 and Figure 4 As shown, the negative busbar body 20 includes at least one first body section 201 and at least one second body section 202. The first body section 201 and the negative connection part 21 are arranged opposite to each other in the second direction B, and the second body section 202 is staggered from the negative connection part 21 in the second direction B. The at least one second body section 202 has a third insulating layer 5 and a fourth insulating layer 6 arranged on both sides along its thickness direction, and the third insulating layer 5 and the fourth insulating layer 6 are connected to each other.

[0106] In this embodiment, by arranging the third insulating layer 5 and the fourth insulating layer 6 on both sides of the second body section 202 and connecting them to each other, accidental contact with the positive busbar 1 or other conductive components can be effectively prevented, thereby greatly reducing the risk of short circuits. The first body section 201 and the negative connection portion 21 are arranged opposite to each other in the second direction B, while the second body section 202 and the negative connection portion 21 are staggered in the second direction B. This design makes the overall structure more compact and facilitates the arrangement of the third insulating layer 5 and the fourth insulating layer 6.

[0107] Optionally, refer to Figure 2 As shown, the positive busbar 1 includes a positive busbar body 10, and at least two first positive connection portions 11 and at least two second positive connection portions 12 disposed on the positive busbar body 10. The first positive connection portions 11 are arranged at intervals between each other, and the second positive connection portions 12 are arranged at intervals between each other. At least a portion of the negative connection portion 21 is located between two adjacent first positive connection portions 11, and the negative connection portion 21 is flush with the first positive connection portion 11. Alternatively, at least a portion of the negative connection portion 21 is located between two adjacent second positive connection portions 12, and the negative connection portion 21 is flush with the second positive connection portion 12.

[0108] In this embodiment, by arranging the negative electrode connection 21 between two adjacent first positive electrode connections 11 or between two adjacent second positive electrode connections 12, and arranging them flush, a more compact design can be achieved within a limited space. This layout effectively utilizes available space and reduces the overall volume.

[0109] Optionally, refer to Figure 2 As shown, the positive busbar body 10 and the negative busbar body 20 are positioned opposite each other and spaced apart on the third direction C; wherein the distance between the positive busbar body 10 and the negative busbar body 20 on the third direction C is between 1.5 mm and 3 mm.

[0110] In this embodiment, the distance between the positive busbar body 10 and the negative busbar body 20 in the third direction C can be 1.5 mm, or 2.25 mm, or 3 mm. However, this disclosure does not limit the specific distance dimensions. By limiting the distance as described above, while ensuring the insulation interval, the positive busbar body 10 and the negative busbar body 20 can be brought as close as possible, thereby shortening the current path and strengthening the magnetic field cancellation, thus reducing ESL (Equivalent Series Inductance).

[0111] Optionally, the thickness of the positive busbar 1 is between 0.4 mm and 0.8 mm. For example, the thickness of the positive busbar 1 can be 0.4 mm; or, the thickness of the positive busbar 1 can be 0.5 mm; or, the thickness of the positive busbar 1 can be 0.8 mm. However, this disclosure does not limit the specific thickness of the positive busbar 1. By limiting it as described above, the thickness of the positive busbar 1 is avoided from being too large, which is beneficial for the design of thinner, smaller, and lighter components.

[0112] Optionally, the thickness of the negative busbar 2 is between 0.4 mm and 0.8 mm. For example, the thickness of the negative busbar 2 can be 0.4 mm; or, the thickness of the negative busbar 2 can be 0.5 mm; or, the thickness of the negative busbar 2 can be 0.8 mm. However, this disclosure does not limit the specific thickness of the negative busbar 2. By limiting it as described above, the thickness of the negative busbar 2 is avoided from being too large, which is beneficial for the design of thinner, smaller, and lighter components.

[0113] This disclosure also provides an electrical component module, which includes a first electrical component, a second electrical component, and the aforementioned busbar assembly. The busbar assembly enables the connection between the first electrical component and the second electrical component. The first electrical component and the second electrical component can be constructed as any suitable electrical structure, and this disclosure does not limit them.

[0114] Optionally, the first electrical device includes an IGBT module, and the second electrical device includes a capacitor; the first positive terminal of the IGBT module is provided with a first positioning member that cooperates with the first positioning part 100; and / or, the second positive terminal of the capacitor is provided with a second positioning member that cooperates with the first positioning part 100; the first negative terminal of the IGBT module is provided with a third positioning member that cooperates with the second positioning part 200; and / or, the second negative terminal of the capacitor is provided with a fourth positioning member that cooperates with the second positioning part 200.

[0115] In this embodiment, the positioning stability and accuracy can be improved through the above-mentioned positioning and matching. The first positioning element can be constructed as a first positioning hole, the second positioning element can be constructed as a second positioning hole, the third positioning element can be constructed as a third positioning hole, and the fourth positioning element can be constructed as a fourth positioning hole. However, this disclosure does not limit the specific structure, as long as it can effectively perform positioning.

[0116] This disclosure also provides a motor controller that includes the aforementioned electrical component module. This disclosure also provides a vehicle that includes the aforementioned electrical component module; or, the vehicle includes the aforementioned motor controller.

[0117] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of this disclosure. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following claims.

[0118] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A busbar assembly, characterized in that, The busbar assembly includes an independent positive busbar and a negative busbar; The positive busbar and the negative busbar are at least partially opposite to each other and spaced apart; The positive busbar is used to electrically connect the first positive terminal of the first electrical device and the second positive terminal of the second electrical device; The negative busbar is used to electrically connect the first negative terminal of the first electrical device and the second negative terminal of the second electrical device; The positive busbar is provided with at least one first positioning part, which is used to position and cooperate with the first electrical component and / or the second electrical component; and / or, the negative busbar is provided with at least one second positioning part, which is used to position and cooperate with the first electrical component and / or the second electrical component.

2. The busbar assembly of claim 1, wherein, The positive busbar includes a positive busbar body, at least one first positive connection part and at least one second positive connection part, wherein the first positive connection part and the second positive connection part are disposed on the positive busbar body; The first positive terminal connection is used to electrically connect to the first positive terminal of the first electrical device, and the second positive terminal connection is used to electrically connect to the second positive terminal of the second electrical device; Wherein, at least one of the first positive electrode connection portions is provided with the first positioning portion; and / or, at least one of the second positive electrode connection portions is provided with the first positioning portion.

3. The busbar assembly of claim 2, wherein, The positive busbar body extends along the first direction; The first positive electrode connection part is configured as multiple parts, and the multiple first positive electrode connection parts are arranged on one side of the positive electrode busbar body along the second direction and are spaced apart in pairs along the first direction; The second positive electrode connection part is configured as a plurality of parts, and the plurality of second positive electrode connection parts are arranged on the other side of the positive electrode busbar body along the second direction and are spaced apart in pairs along the first direction; The first positioning part is provided on each of the two first positive electrode connection portions located on both sides of the first direction; and / or, the first positioning part is provided on each of the two second positive electrode connection portions located on both sides of the first direction; the first direction and the second direction are intersecting.

4. The busbar assembly of claim 2, wherein, The positive busbar body, the first positive connection part, the second positive connection part, and the first positioning part are constructed as an integral structure; and the first positioning part is disposed at an angle on the first positive connection part and / or the second positive connection part.

5. The busbar assembly according to claim 2, characterized in that, The first positive terminal connection includes a first bent section and a first connecting section. The first bent section is connected at an angle to the positive busbar body and is connected to the first connecting section. The first connecting section is used for electrical connection to the first positive terminal of the first electrical device; and / or, The second positive terminal connection includes a second bending section and a second connecting section. The second bending section is connected at an angle to the positive busbar body and is connected to the second connecting section. The second connecting section is used to electrically connect to the second positive terminal of the second electrical device.

6. The busbar assembly of claim 5, wherein, The busbar assembly further includes a first insulating layer disposed on the surface of the positive busbar body, the first bent section, and the second bent section along a first side in the thickness direction; and / or, the busbar assembly further includes a second insulating layer disposed on the surface of the positive busbar body, the first bent section, and the second bent section along a second side in the thickness direction.

7. The busbar assembly of claim 6, wherein, The thickness of the first insulating layer and / or the second insulating layer is between 0.1 mm and 0.5 mm.

8. The busbar assembly of claim 5, wherein, The first connecting segment is used to connect to the first positive terminal of the first electrical device by laser welding; and / or, the second connecting segment is used to connect to the second positive terminal of the second electrical device by laser welding.

9. The busbar assembly of claim 1, wherein, The negative busbar includes a negative busbar body and at least one negative connection part, wherein the negative connection part is disposed on the negative busbar body; The negative terminal connection is used to electrically connect with the first negative terminal of the first electrical device, and the negative busbar body is used to electrically connect with the second negative terminal of the second electrical device. Wherein, at least one of the negative electrode connection portions is provided with the second positioning portion; and / or, the negative electrode busbar body is provided with the second positioning portion.

10. The busbar assembly of claim 9, wherein, The negative electrode busbar body extends along the first direction; The negative electrode connection part is configured as a plurality of such negative electrode connection parts, which are arranged on one side of the negative electrode busbar body along the second direction and spaced apart in pairs along the first direction. The second positioning part is configured as two parts, which are respectively disposed on both sides of the negative busbar body along the first direction, for positioning and cooperating with the second electrical component; The first direction and the second direction are intersecting.

11. The busbar assembly of claim 9, wherein, The negative busbar body, the negative connection part, and the second positioning part are integrally formed; and the second positioning part is disposed at an angle on the negative busbar body and / or the negative connection part.

12. The busbar assembly of claim 9, wherein, The busbar assembly further includes a third insulating layer disposed on at least a portion of the surface of the negative busbar body on a first side along the thickness direction; and / or, the busbar assembly further includes a fourth insulating layer disposed on at least a portion of the surface of the negative busbar body on a second side along the thickness direction.

13. The busbar assembly of claim 12, wherein, The negative busbar body includes at least one first body segment and at least one second body segment. The first body segment and the negative connection part are arranged opposite to each other in the second direction, and the second body segment and the negative connection part are arranged offset from each other in the second direction. In this embodiment, at least one of the second body segments is provided with the third insulating layer and the fourth insulating layer on both sides along its thickness direction, and the third insulating layer and the fourth insulating layer are connected to each other.

14. The busbar assembly according to claim 9, characterized in that, The positive busbar includes a positive busbar body, and at least two first positive connection portions and at least two second positive connection portions disposed on the positive busbar body. The first positive connection portions are disposed at intervals in pairs, and the second positive connection portions are disposed at intervals in pairs. Wherein, at least a portion of the negative electrode connection is located between two adjacent first positive electrode connections, and the negative electrode connection is arranged flush with the first positive electrode connection; or, at least a portion of the negative electrode connection is located between two adjacent second positive electrode connections, and the negative electrode connection is arranged flush with the second positive electrode connection.

15. The busbar assembly of claim 14, wherein, The positive busbar body and the negative busbar body are positioned opposite each other and spaced apart in a third direction; The distance between the positive busbar body and the negative busbar body in the third direction is between 1.5 mm and 3 mm.

16. The busbar assembly according to claim 1, characterized in that, The thickness of the positive busbar is between 0.4 mm and 0.8 mm; and / or, the thickness of the negative busbar is between 0.4 mm and 0.8 mm.

17. An electric device module, characterized by The electrical component module includes a first electrical component, a second electrical component, and a busbar assembly as described in any one of claims 1 to 16.

18. The electric device module according to claim 17, characterized by The first electrical device includes an IGBT module, and the second electrical device includes a capacitor; The first positive terminal of the IGBT module is provided with a first positioning element that cooperates with the first positioning part; and / or, the second positive terminal of the capacitor is provided with a second positioning element that cooperates with the first positioning part; The first negative terminal of the IGBT module is provided with a third positioning element that cooperates with the second positioning part; and / or, the second negative terminal of the capacitor is provided with a fourth positioning element that cooperates with the second positioning part.

19. An electric machine controller characterized by The motor controller includes the electrical component module as described in claim 17 or 18.

20. A vehicle characterized by comprising: The vehicle includes the electrical component module of claim 17 or 18; or, the vehicle includes the motor controller of claim 19.

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