Bus, motor, electric power steering system and vehicle

Abstract

The present invention provides a busbar, a motor, an electric power steering system and a vehicle, wherein the busbar includes a busbar assembly and a terminal assembly, the busbar assembly includes a busbar skeleton and a plurality of busbars, the plurality of busbars are arranged on the busbar skeleton at intervals, and the plurality of busbars include a plurality of terminal connection parts. The terminal assembly is arranged on one axial side of the busbar assembly, the terminal assembly includes a terminal skeleton and a wiring terminal arranged on the terminal skeleton, the terminal skeleton can be connected to the busbar skeleton, and the wiring terminal can be connected to a terminal connection part. In the present invention, the terminal assembly and the busbar assembly are processed independently, the terminal assembly can be adapted to the busbar assembly having a plurality of terminal connection parts, and the terminal assembly can be selectively welded to the terminal connection part that meets the motor interface requirements, thereby achieving diversification of the motor interface and improving the versatility of the busbar assembly.

Description

Technical Field

[0001] The present invention relates to the technical field of motors, and in particular to a bus, a motor, an electric power steering system and a vehicle. Background Art

[0002] Currently, motor busbars consist of multiple busbars and terminals, with the terminals welded to the busbars to form a single component. The terminals are welded to the busbars in fixed positions. However, if the motor's interface requirements change, the multiple busbars or terminals in this single component cannot be reused, resulting in poor versatility. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art or related art.

[0004] To this end, a first aspect of the present invention is to provide a busbar.

[0005] A second aspect of the present invention is to provide an electric motor.

[0006] A third aspect of the present invention is to provide an electric power steering system.

[0007] A fourth aspect of the present invention is to provide a vehicle.

[0008] In view of this, according to a first aspect of the present invention, a busbar is provided for use in a motor, the busbar comprising a busbar assembly and a terminal assembly, the busbar assembly comprising a busbar frame and a plurality of busbars, the plurality of busbars being spaced apart on the busbar frame, the plurality of busbars comprising a plurality of terminal connecting portions, the terminal assembly being disposed on one axial side of the busbar assembly, the terminal assembly comprising a terminal frame and a terminal disposed on the terminal frame, the terminal frame being connectable to the busbar frame, and the terminal being connectable to one of the terminal connecting portions.

[0009] The busbar provided by the present invention includes a bus assembly and a terminal assembly. The bus assembly includes a bus frame and a plurality of bus bars. The plurality of bus bars are spaced apart on the bus frame. The bus frame is used to provide support for the plurality of bus bars and to isolate adjacent bus bars from the plurality of bus bars, thereby providing electrical insulation. The bus bar is a conductor, and the bus bar is used to connect the winding ends that need to be connected together in the plurality of windings of the motor stator, thereby achieving electrical connection of the plurality of winding ends and realizing the bus function. The bus bar also includes a plurality of terminal connection parts, which provide a variety of setting positions for the terminal assembly, thereby meeting the various interface requirements of the motor. The terminal assembly is arranged on one axial side of the busbar assembly. The terminal assembly includes a terminal skeleton and a terminal block. The terminal skeleton can be connected to the busbar skeleton to achieve structural connection and fixation, and can also achieve a pre-positioning function. The terminal block can be connected to a terminal connection portion to achieve electrical connection, that is, before the terminal assembly and the busbar assembly are welded, the two are relatively independent components. In the actual processing process, the terminal assembly and the busbar assembly can be processed separately. After the two are processed and formed, the two are assembled. During the assembly process, the terminal skeleton and the busbar skeleton are pre-positioned, and then the terminal block and the terminal connection portion are welded, thereby reducing the processing difficulty, effectively improving the processing efficiency and reducing the processing cost. In addition, since multiple busbars include multiple terminal connection portions, the terminal block of the terminal assembly can be welded to the terminal connection portion that meets the motor interface requirements, thereby realizing the diversification of the motor interface and improving the versatility of the busbar assembly.

[0010] It should be noted that the multiple terminal connection portions are evenly spaced to facilitate connection of the terminal blocks. Specifically, the busbar frame can be an injection molded part, which can be integrally molded with the multiple busbars. Similarly, the terminal frame can also be an injection molded frame, which can be integrally molded with the terminal blocks, simplifying the manufacturing process and reducing the number of parts, while ensuring reliable connection performance between the busbar frame and the busbar, and between the terminal frame and the terminal blocks.

[0011] In a possible design, further, the number of the terminal skeletons is at least one, and the number of the connecting terminals is multiple.

[0012] In this design, there is at least one terminal frame and multiple wiring terminals. Multiple wiring terminals are arranged in at least one terminal frame, which allows for various combinations of wiring terminals and terminal frames. For example, one terminal frame is provided with one wiring terminal, and one terminal frame is provided with at least two wiring terminals. When there are three wiring terminals, the three wiring terminals can be arranged together on one terminal frame, or three independent terminal frames can be provided, with one wiring terminal corresponding to each terminal frame. The three independent wiring terminals can be arranged arbitrarily on the busbar according to the interface requirements.

[0013] In a possible design, further, the number of terminal skeletons is one, the number of connecting terminals is multiple, and the multiple connecting terminals are arranged on one terminal skeleton.

[0014] In this design, there is only one terminal frame, and multiple wiring terminals are centrally arranged on the terminal frame. The terminal assembly is treated as a whole, which facilitates the processing and forming of the terminal assembly. It should be noted that multiple wiring terminals are arranged at intervals on the terminal frame, and each wiring terminal is welded to a terminal connection portion on the busbar.

[0015] In a possible design, further, a plurality of connection terminals are arranged at intervals along the circumferential direction on a terminal skeleton, and the structures of the plurality of connection terminals are the same.

[0016] In this design, multiple wiring terminals are arranged at intervals along the circumferential direction on a terminal skeleton. The multiple wiring terminals have the same structure, so the multiple wiring terminals can be prepared using a common set of molds, thereby reducing production costs.

[0017] In a possible design, further, a plurality of connection terminals are arranged in a straight line on a terminal frame, and the structures of the plurality of connection terminals are different.

[0018] In this design, multiple terminals are arranged in a straight line on a terminal frame, that is, multiple terminals are centrally arranged on a single terminal block, thereby improving the integration of the terminal assembly, facilitating the simultaneous installation of multiple terminals, and improving assembly efficiency. Furthermore, the structures of the multiple terminals vary. One terminal is welded to a terminal connection portion, and multiple terminals need to adapt to the arrangement of the terminal connection portions. Therefore, the structures of the multiple terminals vary, allowing for better welding to terminal connection portions at different locations.

[0019] In a possible design, further, there are multiple terminal skeletons, multiple wiring terminals, and the multiple wiring terminals are arranged on the multiple terminal skeletons in a one-to-one correspondence.

[0020] In this design, there are multiple terminal bobbins and multiple wiring terminals. One wiring terminal is matched to one terminal bobbin. Multiple terminal bobbins and multiple wiring terminals have the same structure. One wiring terminal and one terminal bobbin form a wiring assembly. When different motor interfaces are far apart, multiple independent wiring assemblies can be used, which is low-cost and easy to assemble.

[0021] In a possible design, further, a plurality of connection terminals are evenly spaced apart and arranged on the terminal frame or the busbar assembly.

[0022] In this design, multiple wiring terminals are evenly spaced on a terminal skeleton. For example, two adjacent wiring terminals are arranged at a 30° interval. The wiring terminals have the same structure and can share a set of molds, or multiple wiring terminals are evenly spaced on the bus assembly. In this case, one wiring terminal corresponds to one terminal skeleton setting, and multiple wiring assemblies are spaced on the bus assembly. In this case, two adjacent wiring assemblies are arranged at a 120° interval.

[0023] In one possible design, the terminal further includes a connecting portion and a first welding portion, wherein the connecting portion is connected to the terminal frame. The first welding portion is connected to an end of the connecting portion proximal to the busbar assembly and protrudes from the terminal frame. The first welding portion is capable of being welded to the busbar. The terminal assembly further includes a relief opening, which is provided on the terminal frame corresponding to the first welding portion.

[0024] In this design, the terminal includes a connection portion and a first welding portion. The connection portion is mounted on the terminal frame, while the first welding portion is exposed from the terminal frame. This means that the first welding portion protrudes from the terminal frame, facilitating welding between the first welding portion and the terminal connection portion on the busbar. The terminal frame also has a clearance opening corresponding to the first welding portion. This clearance opening effectively prevents the terminal frame from interfering with the welding process, improving welding efficiency and weld pass rates.

[0025] It should be noted that the number of avoidance openings on a terminal frame is consistent with the number of terminal blocks provided on the terminal frame. In other words, when a terminal frame is integrated with multiple terminal blocks, the number of avoidance openings is also multiple, thereby ensuring that each terminal block can be effectively welded to the corresponding terminal connection portion.

[0026] In a possible design, the terminal further includes a second welding portion, which is connected to an end of the connecting portion facing away from the bus assembly. The second welding portion protrudes from the terminal skeleton and extends axially to be connected to the controller of the motor.

[0027] In this design, the terminal block also includes a second soldering portion, located opposite the first soldering portion at opposite ends of the connecting portion. This second soldering portion is used to connect to the motor controller. In other words, the terminal block electrically connects the busbar to the controller. Furthermore, the second soldering portion protrudes from the terminal frame, facilitating connection to the controller. Furthermore, the second soldering portion extends axially, facilitating connection to contacts on the controller.

[0028] In a possible design, further, the terminal frame includes an insulating body and a connector, the connection terminal is provided on the insulating body, and the connector is provided on the insulating body, and the connector can be connected to the bus frame.

[0029] In this design, the terminal frame includes an insulating body and a connector. The insulating body provides support for the terminal and connector. The first and second welding portions of the terminal are exposed from the insulating body, ensuring weldability between the first and second welding portions and the terminal connection portion and the controller, respectively. The connector serves as a connecting structure that connects to the busbar frame, ensuring a reliable connection between the terminal assembly and the busbar assembly, further ensuring electrical connection between the terminal and the terminal connection portion.

[0030] In a possible design, further, a portion of the insulating body extends axially and away from the bus assembly to form a reinforcement portion, and a portion of the terminal block is disposed in the reinforcement portion.

[0031] In this design, a portion of the insulating body extends axially in a direction away from the bus assembly. This portion of the insulating body constitutes a reinforcement portion, and a portion of the terminal (the connecting portion of the terminal) is embedded in the reinforcement portion. The axially extending reinforcement portion increases the contact area between the insulating body and the terminal, thereby providing stronger support for the terminal and preventing deformation due to the forces generated during the welding process between the first welding portion and the second welding portion of the terminal and the terminal connecting portion and the controller, respectively.

[0032] It should be noted that the number of reinforcement parts corresponds to the number of wiring terminals one by one, that is, one wiring terminal corresponds to one reinforcement part. While improving the structural strength of the wiring terminals, the preparation cost of the terminal assembly will not be significantly increased.

[0033] In a possible design, further, the connecting member extends axially and close to the busbar assembly.

[0034] In this design, the connector extends axially and toward the direction close to the bus assembly. When the terminal frame and the bus frame are assembled, the assembly between the bus frame and the terminal frame can be completed by applying an axial force, which is convenient and quick to operate.

[0035] In a possible design, further, there are multiple connectors, and a wiring terminal is provided between two adjacent ones of the multiple connectors.

[0036] In this design, multiple connectors are used. When a terminal is mounted on a terminal frame, the connectors are spaced apart and located on both sides of the terminal, thereby achieving balanced force distribution throughout the terminal assembly. When multiple terminals are clustered and spaced apart on a terminal frame, connectors are located on both sides of a terminal, ensuring balanced force distribution throughout the assembly and effectively improving the reliable connection performance of the terminal assembly and the busbar assembly.

[0037] In a possible design, the busbar further includes a plurality of assembly interfaces, which are spaced apart on the busbar frame. A connector can be installed in one assembly interface to make the insulating body contact the busbar frame.

[0038] In this design, the busbar also includes multiple assembly interfaces, which are arranged at intervals on the bus frame. A terminal frame includes multiple connectors, and a connector can be installed in an assembly interface to achieve contact between the insulating body and the bus frame, thereby ensuring the accurate positioning and installation of the terminal assembly.

[0039] It should be noted that there is a terminal connecting portion between two adjacent assembly interfaces among the multiple assembly interfaces, and the terminal connecting portion is exposed from the bus frame so as to be connected to the first welding portion of the wiring terminal.

[0040] In one possible design, the connector further includes a plurality of elastic arms and guide portions, with gaps between the plurality of elastic arms. The guide portion is provided at the free end of each elastic arm, and a stop step is formed between the guide portion and the elastic arm. The guide portion extends into the assembly interface to engage the stop step with the busbar frame.

[0041] In this design, gaps are created between the multiple elastic arms, providing them with space to deform. When the elastic arms are inserted into the assembly interface, they approach each other, allowing them to smoothly enter the interface and improving assembly performance. Each elastic arm also has a guide at its free end, forming a stop step between the guide and the elastic arm. When the connector moves relative to the busbar frame, a portion of the guide first extends into the assembly interface. Guided by the guide, the guide completely passes through the assembly interface, allowing a portion of the elastic arm to enter the interface while the stop step engages the busbar frame, thereby securing the terminal frame and busbar frame in position.

[0042] According to a second aspect of the present invention, a motor is provided, comprising a housing and a busbar provided by any of the above designs, the busbar being disposed within the housing. The motor further comprises a stator frame disposed axially on one side of the busbar, the stator frame being in contact with a busbar frame of the busbar.

[0043] The motor provided by the present invention includes the bus provided by any of the above designs, and therefore has all the beneficial effects of the bus, which will not be described in detail here.

[0044] Furthermore, the motor also includes a casing, the bus is arranged in the casing, and the motor also includes a stator frame, which is connected to one axial side of the bus. The stator frame can contact the bus frame, and the two are positioned and assembled.

[0045] In a possible design, the motor further includes a plurality of positioning portions and matching portions, wherein the plurality of positioning portions are spaced apart on the busbar frame. The matching portions are provided on the stator frame, and the matching portions are connected to the positioning portions so that the stator frame and the busbar frame are in contact.

[0046] In this design, the motor also includes multiple positioning and mating portions, with the positioning portions spaced apart on the busbar frame. Specifically, some of the positioning portions are located on the inner wall of the busbar frame, while others are located on the outer wall, enabling dual-stage positioning and installation. Furthermore, the mating portions are located on the stator frame and connected to the positioning portions to ensure contact between the stator frame and the busbar frame. The mating portions and positioning portions are arranged in a one-to-one correspondence.

[0047] Specifically, the positioning portion and the matching portion can be snap-connected, riveted, or the like.

[0048] In a possible design, the motor further includes a control component, which is arranged on the other side of the bus assembly along the axial direction. The control component has a controller, and the controller is connected to the connection terminals of the bus.

[0049] In this design, the motor further includes a control assembly, which is arranged on the other side of the bus assembly in the axial direction. The control assembly has a controller, which is connected to the busbar terminal. Specifically, the controller is connected to the second welding portion of the terminal.

[0050] According to a third aspect of the present invention, an electric power steering system is provided, comprising a motor provided by any of the above designs.

[0051] The electric power steering system provided by the present invention includes the motor provided by any of the above designs, and therefore has all the beneficial effects of the motor, which will not be described in detail here.

[0052] According to a fourth aspect of the present invention, a vehicle is provided, comprising the electric power steering system provided by any one of the above designs.

[0053] The vehicle provided by the present invention includes the electric power steering system provided by any of the above designs, and therefore has all the beneficial effects of the electric power steering system, which will not be described in detail here.

[0054] It is worth noting that the vehicle can be a traditional fuel vehicle or a new energy vehicle, among which new energy vehicles include pure electric vehicles, extended-range electric vehicles, hybrid vehicles, fuel cell electric vehicles, hydrogen engine vehicles, etc.

[0055] Additional aspects and advantages of the invention will become apparent from the description which follows, or may be learned by practice of the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments with reference to the accompanying drawings, in which:

[0057] Figure 1 A schematic diagram of a partial structure of a busbar according to an embodiment of the present invention is shown;

[0058] Figure 2 A schematic structural diagram of a terminal assembly in a busbar according to an embodiment of the present invention is shown;

[0059] Figure 3 A schematic diagram of a portion of the structure of a bus assembly in a bus bar according to an embodiment of the present invention is shown;

[0060] Figure 4 A schematic structural diagram of a bus bar in a busbar according to an embodiment of the present invention is shown;

[0061] Figure 5 It shows one of the partial structural schematic diagrams of a motor according to one embodiment of the present invention;

[0062] Figure 6 A second schematic diagram of a partial structure of a motor according to an embodiment of the present invention is shown;

[0063] Figure 7 shows one of the partial structural schematic diagrams of a motor according to another embodiment of the present invention;

[0064] Figure 8 A second schematic diagram of a partial structure of a motor according to another embodiment of the present invention is shown;

[0065] Figure 9 A schematic structural diagram of a terminal assembly in a busbar according to another embodiment of the present invention is shown;

[0066] Figure 10 A partial structural schematic diagram of a terminal assembly in a busbar according to another embodiment of the present invention is shown;

[0067] Figure 11 shows one of the partial structural schematic diagrams of a motor according to yet another embodiment of the present invention;

[0068] Figure 12 A second schematic diagram of a partial structure of a motor according to another embodiment of the present invention is shown;

[0069] Figure 13 A partial structural schematic diagram of a busbar according to another embodiment of the present invention is shown;

[0070] Figure 14A schematic structural diagram of a terminal assembly in a busbar according to another embodiment of the present invention is shown;

[0071] Figure 15 A partial structural schematic diagram of a terminal assembly in a busbar according to another embodiment of the present invention is shown.

[0072] in, Figures 1 to 15 The corresponding relationship between the reference numerals and component names is as follows:

[0073] 100 busbars,

[0074] 110 busbar assembly,

[0075] 111 bus frame, 1111 assembly interface, 1112 positioning part,

[0076] 112 bus bar, 1121 terminal connection part,

[0077] 1122 phase bus bar, 1124 second welding hook,

[0078] 1123 neutral bus bar, 1125 first welding hook,

[0079] 120 terminal assembly,

[0080] 121 terminal skeleton,

[0081] 1211 insulation body, 1211a reinforcement part,

[0082] 1212 connecting member, 1213 elastic arm, 1214 guide portion, 1215 gap,

[0083] 122 terminal, 1221 connecting portion, 1222 first welding portion, 1223 second welding portion, 123 avoidance opening,

[0084] 200 motors,

[0085] 210 stator frame. DETAILED DESCRIPTION

[0086] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments of the present application and the features therein can be combined with each other.

[0087] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0088] Refer to the following Figures 1 to 15 The busbar 100 , the motor 200 , the electric power steering system, and the vehicle according to some embodiments of the present invention are described.

[0089] According to a first aspect of the present invention, there is provided a busbar 100, such as Figures 1 to 3 、 Figure 13 and Figure 14 As shown, for motor 200, busbar 100 includes a bus assembly 110 and a terminal assembly 120. Bus assembly 110 includes a bus skeleton 111 and a plurality of bus bars 112. Multiple bus bars 112 are arranged on bus skeleton 111 at intervals. Multiple bus bars 112 include a plurality of terminal connecting portions 1121. Terminal assembly 120 is arranged on one axial side of bus assembly 110. Terminal assembly 120 includes a terminal skeleton 121 and a connection terminal 122 arranged on terminal skeleton 121. Terminal skeleton 121 can be connected to bus skeleton 111, and connection terminal 122 can be connected to one terminal connecting portion 1121.

[0090] The busbar 100 provided by the present invention includes a busbar assembly 110 and a terminal assembly 120. The busbar assembly 110 includes a busbar skeleton 111 and a plurality of busbars 112. The plurality of busbars 112 are spaced apart on the busbar skeleton 111. The busbar skeleton 111 is used to provide support for the plurality of busbars 112 and to isolate adjacent busbars 112 from the plurality of busbars 112, thereby providing electrical insulation. The busbar 112 is a conductor. The busbar 112 is used to connect the winding ends that need to be connected together in the plurality of windings of the stator of the motor 200, thereby achieving electrical connection of the plurality of winding ends and realizing the bus function. The busbar 112 also includes a plurality of terminal connection portions 1121. The plurality of terminal connection portions 1121 provide a variety of setting positions for the terminal assembly 120, which can meet the various interface requirements of the motor 200. The terminal assembly 120 is arranged on one axial side of the bus assembly 110. The terminal assembly 120 includes a terminal skeleton 121 and a wiring terminal 122. The terminal skeleton 121 can be connected to the bus skeleton 111 to achieve structural connection and fixation, and can also achieve a pre-positioning function. The wiring terminal 122 can be connected to a terminal connection part 1121 to achieve electrical connection, that is, before the terminal assembly 120 and the bus assembly 110 are welded, the two are relatively independent components. In the actual processing process, the terminal assembly 120 and the bus assembly 110 can be processed separately. After the two are processed and formed separately, the two are assembled. During the assembly process, the terminal skeleton 121 and the bus skeleton 111 are pre-positioned, and then the wiring terminal 122 and the terminal connection part 1121 are welded, which can reduce the processing difficulty, effectively improve the processing efficiency and reduce the processing cost. In addition, since multiple bus bars 112 include multiple terminal connection parts 1121, the terminal terminals 122 of the terminal assembly 120 can be welded with terminal connection parts 1121 that meet the interface requirements of the motor 200, thereby achieving interface diversification of the motor 200 and improving the versatility of the bus assembly 110.

[0091] It should be noted that the multiple terminal connection portions 1121 are evenly spaced to facilitate connection of the terminal blocks 122. Specifically, the busbar frame 111 can be an injection molded part, which can be integrally molded with the multiple busbars 112. Similarly, the terminal frame 121 can also be an injection molded part, which can be integrally molded with the terminal blocks 122, simplifying the manufacturing process and reducing the number of parts, while ensuring reliable connection performance between the busbar frame 111 and the busbars 112, and between the terminal frame 121 and the terminal blocks 122.

[0092] In one possible design, further, as Figure 2 、 Figure 9 and Figure 14 As shown, the number of the terminal skeleton 121 is at least one, and the number of the connection terminals 122 is multiple.

[0093] In this design, there is at least one terminal skeleton 121 and a plurality of wiring terminals 122. Multiple wiring terminals 122 are arranged in at least one terminal skeleton 121, which allows for various combinations of the wiring terminals 122 and the terminal skeletons 121. For example, one terminal skeleton 121 is provided with one wiring terminal 122, and one terminal skeleton 121 is provided with at least two wiring terminals 122. When there are three wiring terminals 122, the three wiring terminals 122 can be centrally arranged on one terminal skeleton 121, or three independent terminal skeletons 121 can be provided, with one wiring terminal 122 corresponding to each terminal skeleton 121. The three independent wiring terminals 122 can be arbitrarily arranged on the busbar 112 according to interface requirements.

[0094] In one possible design, further, as Figure 2 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 and Figure 9 As shown, there is one terminal skeleton 121 , and there are multiple connection terminals 122 , and multiple connection terminals 122 are arranged on one terminal skeleton 121 .

[0095] In this design, there is only one terminal skeleton 121, and multiple connection terminals 122 are centrally arranged on the terminal skeleton 121. The terminal assembly 120 is treated as a whole, which facilitates the processing and forming of the terminal assembly 120. It should be noted that the multiple connection terminals 122 are arranged at intervals on the terminal skeleton 121, and each connection terminal 122 is welded to a terminal connection portion 1121 on the busbar 112.

[0096] In one possible design, further, as Figure 1 、 Figure 2 、 Figure 5 and Figure 6 As shown, a plurality of connection terminals 122 are arranged on a terminal frame 121 at intervals along the circumferential direction, and the structures of the plurality of connection terminals 122 are the same.

[0097] In this design, multiple connecting terminals 122 are arranged at intervals along the circumferential direction on a terminal skeleton 121. The multiple connecting terminals 122 have the same structure, so the multiple connecting terminals 122 can be prepared using a common set of molds, thereby reducing production costs.

[0098] In one possible design, further, as Figure 7 、 Figure 8 and Figure 9 As shown, a plurality of connection terminals 122 are arranged in a straight line on a terminal frame 121 , and the structures of the plurality of connection terminals 122 are different.

[0099] In this design, multiple wiring terminals 122 are arranged in a straight line on a terminal frame 121, that is, multiple wiring terminals 122 are concentrated on a single wiring terminal 122, thereby improving the integration of the terminal assembly 120, facilitating the simultaneous installation of multiple wiring terminals 122, and improving assembly efficiency. Furthermore, the structures of the multiple wiring terminals 122 are different. One wiring terminal 122 is welded to a terminal connection portion 1121, and the multiple wiring terminals 122 need to adapt to the arrangement of the terminal connection portion 1121. Therefore, the structures of the multiple wiring terminals 122 are different, so that they can be better welded to the terminal connection portions 1121 at different positions.

[0100] In one possible design, further, as Figure 11 、 Figure 12 and Figure 13 As shown, there are multiple terminal skeletons 121 and multiple connection terminals 122 , and the multiple connection terminals 122 are arranged on the multiple terminal skeletons 121 in a one-to-one correspondence.

[0101] In this design, there are multiple terminal frames 121 and multiple wiring terminals 122. Each wiring terminal 122 is mounted on one terminal frame 121, and multiple terminal frames 121 and multiple wiring terminals 122 have the same structure. One wiring terminal 122 and one terminal frame 121 form a wiring assembly. When different interfaces of motor 200 are located far apart, multiple independent wiring assemblies can be used, resulting in low cost and easy assembly.

[0102] In a possible design, further, a plurality of connection terminals 122 are evenly spaced apart and arranged on the terminal skeleton 121 or the bus assembly 110 .

[0103] In this design, multiple wiring terminals 122 are evenly spaced apart on a terminal skeleton 121. For example, two adjacent wiring terminals 122 are arranged at a 30° interval. The wiring terminals 122 have the same structure and can share a set of molds, or multiple wiring terminals 122 are evenly spaced apart on the bus assembly 110. In this case, one wiring terminal 122 corresponds to one terminal skeleton 121, and multiple wiring assemblies are spaced apart on the bus assembly 110. In this case, two adjacent wiring assemblies are arranged at a 120° interval.

[0104] In one possible design, further, as Figure 15As shown, the terminal block 122 includes a connecting portion 1221 and a first welding portion 1222. The connecting portion 1221 is connected to the terminal frame 121. The first welding portion 1222 is connected to the end of the connecting portion 1221 near the busbar assembly 110 and protrudes from the terminal frame 121. The first welding portion 1222 can be welded to the busbar 112. The terminal assembly 120 also includes a relief opening 123, which is provided on the terminal frame 121 corresponding to the first welding portion 1222.

[0105] In this design, the terminal block 122 includes a connection portion 1221 and a first welding portion 1222. The connection portion 1221 is provided on the terminal frame 121, while the first welding portion 1222 is exposed outside the terminal frame 121. This means that the first welding portion 1222 protrudes from the terminal frame 121, facilitating welding of the first welding portion 1222 to the terminal connection portion 1121 on the busbar 112. The terminal frame 121 also includes a clearance opening 123, corresponding to the first welding portion 1222. When welding the first welding portion 1222 to the terminal connection portion 1121, the clearance opening 123 effectively prevents the terminal frame 121 from interfering with the welding process, improving welding efficiency and the weld pass rate.

[0106] It should be noted that the number of avoidance openings 123 on a terminal frame 121 is consistent with the number of connection terminals 122 provided on the terminal frame 121. In other words, when a terminal frame 121 is integrated with multiple connection terminals 122, the number of avoidance openings 123 is also multiple, thereby ensuring that each connection terminal 122 can be effectively welded to the corresponding terminal connection portion 1121.

[0107] It should be noted that if Figure 14 and Figure 15 As shown, one terminal block 122 includes a first welding portion 1222. Multiple terminals 122 may have multiple first welding portions 1222. The walls of these multiple first welding portions 1222 facing the central axis are located within an arc of the same radius, allowing multiple terminals 122 to share the same mold. Of course, the busbar assembly 110 also needs to provide three terminal connection portions 1121 located on the same radius. In this case, the terminal block 122 may be welded to the inner circumference of the terminal connection portion 1121 or the outer circumference of the terminal connection portion 1121.

[0108] In one possible design, further, as Figure 2 、 Figure 9 、 Figure 10 、 Figure 14 and Figure 15The connection terminal 122 further includes a second welding portion 1223 , which is connected to an end of the connection portion 1221 facing away from the bus assembly 110 . The second welding portion 1223 protrudes from the terminal frame 121 and extends axially to be connected to the controller of the motor 200 .

[0109] In this design, terminal block 122 also includes a second welding portion 1223, which is positioned opposite first welding portion 1222 at opposite ends of connecting portion 1221. Second welding portions 1223 are used to connect to the controller of motor 200. In other words, terminal block 122 electrically connects busbar 112 to the controller. Furthermore, second welding portions 1223 protrude from terminal frame 121, facilitating connection to the controller. Furthermore, second welding portions 1223 extend axially, facilitating connection to contacts on the controller.

[0110] In one possible design, further, as Figure 2 and Figure 14 As shown, the terminal frame 121 includes an insulating body 1211 and a connector 1212. The connection terminal 122 is provided on the insulating body 1211. The connector 1212 is provided on the insulating body 1211 and can be connected to the bus frame 111.

[0111] In this design, the terminal skeleton 121 includes an insulating body 1211 and a connector 1212. The insulating body 1211 can provide support for the terminal 122 and the connector 1212. The first welding portion 1222 and the second welding portion 1223 of the terminal 122 are both exposed on the insulating body 1211, thereby ensuring the weldability between the first welding portion 1222 and the second welding portion 1223 and the terminal connection portion 1121 and the controller, respectively. The connector 1212 serves as a connecting structure and can be connected to the bus skeleton 111 to ensure a reliable connection between the terminal assembly 120 and the bus assembly 110, thereby further ensuring the electrical connection between the terminal 122 and the terminal connection portion 1121.

[0112] In one possible design, further, as Figure 14 As shown, a portion of the insulating body 1211 extends axially and away from the bus assembly 110 to form a reinforcement portion 1211 a , and a portion of the connection terminal 122 is disposed in the reinforcement portion 1211 a .

[0113] In this design, a portion of the insulating body 1211 extends axially and in a direction away from the bus assembly 110. This portion of the insulating body 1211 constitutes a reinforcing portion 1211a, and a portion of the terminal 122 (the connecting portion 1221 of the terminal 122) is embedded in the reinforcing portion 1211a. The axially extending reinforcing portion 1211a increases the contact area between the insulating body 1211 and the terminal 122, thereby providing stronger support for the terminal 122 and preventing the first welding portion 1222 and the second welding portion 1223 of the terminal 122 from being deformed by the forces generated during the welding process with the terminal connecting portion 1121 and the controller respectively.

[0114] It should be noted that the number of reinforcement parts corresponds one-to-one to the number of terminal blocks 122, that is, one terminal block 122 corresponds to one reinforcement part. While improving the structural strength of the terminal block 122, the preparation cost of the terminal assembly 120 will not be significantly increased.

[0115] In a possible design, further, the connecting member 1212 extends axially and close to the bus assembly 110 .

[0116] In this design, the connector 1212 extends axially and toward the direction close to the bus assembly 110. When the terminal frame 121 and the bus frame 111 are assembled, the assembly between the bus frame 111 and the terminal frame 121 can be completed by applying an axial force, which is convenient and quick to operate.

[0117] In one possible design, further, as Figure 2 and Figure 14 As shown, there are multiple connecting members 1212 , and a connecting terminal 122 is provided between two adjacent ones of the multiple connecting members 1212 .

[0118] In this design, there are multiple connectors 1212. When one terminal 122 is located on a terminal frame 121, the connectors 1212 are spaced apart and located on both sides of the terminal 122, thereby achieving balanced force distribution within the wiring assembly. When multiple terminals 122 are centrally spaced apart on a terminal frame 121, connectors 1212 are located on both sides of each terminal 122, ensuring balanced force distribution and effectively improving the reliable connection between the terminal assembly 120 and the bus assembly 110.

[0119] In one possible design, further, as Figure 5 、 Figure 7 and Figure 11As shown, the busbar 100 further includes a plurality of assembly interfaces 1111 , which are spaced apart on the busbar frame 111 . A connector 1212 can be installed in one assembly interface 1111 to make the insulating body 1211 contact the busbar frame 111 .

[0120] In this design, the busbar 100 also includes multiple assembly interfaces 1111, and the multiple assembly interfaces 1111 are arranged at intervals on the bus frame 111. A terminal frame 121 includes multiple connectors 1212, and a connector 1212 can be installed in an assembly interface 1111, thereby achieving contact between the insulating body 1211 and the bus frame 111, thereby ensuring the accurate positioning and installation of the terminal assembly 120.

[0121] It should be noted that a terminal connection portion 1121 is provided between two adjacent assembly interfaces 1111 among the plurality of assembly interfaces 1111 . The terminal connection portion 1121 is exposed outside the busbar skeleton 111 so as to be connected to the first welding portion 1222 of the connection terminal 122 .

[0122] In one possible design, further, as Figure 2 As shown, the connector 1212 includes a plurality of elastic arms 1213 and a guide portion 1214, with gaps 1215 between the plurality of elastic arms 1213. The guide portion 1214 is provided at the free end of each elastic arm 1213, and a limiting step is formed between the guide portion 1214 and the elastic arm 1213. The guide portion 1214 extends into the assembly interface 1111 so that the limiting step is engaged with the busbar frame 111.

[0123] In this design, gaps 1215 are provided between the multiple elastic arms 1213, thereby providing deformation space for the elastic arms 1213. When the elastic arms 1213 extend into the assembly interface 1111, the multiple elastic arms 1213 approach each other and smoothly extend into the assembly interface 1111, thereby improving assembly performance. A guide portion 1214 is also provided at the free end of each elastic arm 1213. A limiting step can be formed between the guide portion 1214 and the elastic arm 1213. When the connector 1212 moves relative to the busbar frame 111, a portion of the guide portion 1214 first extends into the assembly interface 1111. Under the guidance of the guide portion 1214, the guide portion 1214 completely passes through the assembly interface 1111. At this time, a portion of the elastic arm 1213 extends into the assembly interface 1111, and the limiting step can be snapped onto the busbar frame 111, thereby forming a positioning assembly between the terminal frame 121 and the busbar frame 111.

[0124] Furthermore, if Figure 3 and Figure 4As shown, each of the multiple busbars 112 includes a main section and welding hooks disposed on the main section. The multiple main sections of the multiple busbars 112 form a main body portion, which includes a first wall and a second wall facing each other, with the first wall being closer to the central axis of the motor 200 than the second wall. The multiple welding hooks of the multiple busbars 112 include a first welding hook 1125 and a second welding hook 1124. At least a portion of the first welding hook 1125 protrudes from the first wall, and at least a portion of the second welding hook 1124 protrudes from the second wall. Specifically, each busbar 112 includes a main section and welding hooks, with at least one welding hook disposed on the main section. For each busbar 112, there is at least one welding hook. The main sections of the multiple busbars 112 form the busbar's supporting framework, while the welding hooks are used to connect to the windings. The main sections of the multiple busbars 112 are bent and / or curved around the central axis of the motor 200 to form the main body portion. The main body includes a first wall facing the central axis and a second wall facing away from the first wall. Specifically, when the main body segment is an arc segment, or when the main body segment is annular, the first wall is the inner contour surface, and the second wall is the outer contour surface. The multiple busbars 112 include multiple welding hooks, which include two types of welding hooks facing in different directions: a first welding hook 1125 and a second welding hook 1124. At least a portion of the first welding hook 1125 protrudes from the first wall surface, that is, at least a portion of the first welding hook 1125 is exposed beyond the first wall surface, that is, the first welding hook 1125 is an inner welding hook. At least a portion of the second welding hook 1124 protrudes from the second wall surface, that is, at least a portion of the second welding hook 1124 is exposed beyond the second wall surface, that is, the second welding hook 1124 is an outer welding hook. The present invention avoids concentrating multiple welding hooks at the same position by setting multiple welding hooks as first welding hooks 1125 and second welding hooks 1124 with different orientations, rationally utilizes space, increases the distance between two adjacent welding hooks among the multiple welding hooks, reduces the difficulty of wire entanglement, wire cutting and welding, and improves assembly efficiency.

[0125] It should be noted that if Figure 3 and Figure 4As shown, multiple busbars 112 include at least three phase busbars 1122 and a neutral busbar 1123. The at least three phase busbars 1122 are spaced apart, each having a second welding hook 1124. A neutral busbar 1123 is provided on one side of the at least three phase busbars 1122, and the neutral busbar 1123 has a first welding hook 1125. Multiple busbars 112 include at least three phase busbars 1122 and a neutral busbar 1123. The at least three phase busbars 1122 include a U-phase busbar 1122, a V-phase busbar 1122, and a W-phase busbar 1122. Each phase busbar 1122 has a second welding hook 1124, meaning that the welding hooks of the phase busbars 1122 are outer welding hooks. Neutral busbar 1123 is located on one side of at least three phase busbars 1122. The welding hook of neutral busbar 1123 is first welding hook 1125, i.e., the welding hook of neutral busbar 1123 is an inner welding hook. By centrally locating first welding hook 1125 on neutral busbar 1123 and second welding hook 1124 on at least three phase busbars 1122, the preparation of different types of busbars 112 and the connection of windings are simplified, the distance between the windings and the welding hooks is shortened, and thus the length of the windings is shortened, making the winding welding easier.

[0126] The at least three phase bus bars 1122 are spaced apart in the radial direction, and the neutral bus bar 1123 is disposed on the inner side of the at least three phase bus bars 1122, thereby reducing the axial space requirement of the bus assembly 110. For example, in the radial direction, the neutral bus bar 1123 and the at least three phase bus bars 1122 are different arc segments of concentric circles, that is, from the inside out, they include the neutral bus bar 1123, the first bus bar 112, the second bus bar 112, and the third bus bar 112. Alternatively, each of the at least three phase bus bars 1122 includes arc segments of at least three different radii, thereby achieving an interlaced arrangement of the at least three phase bus bars 1122. Within the same radius, a portion of each of the at least three phase bus bars 1122 is located at that radius. Alternatively, at least three phase bus bars 1122 are stacked and arranged at intervals along the axial direction, and the neutral bus bar 1123 is provided on one axial side of the at least three phase bus bars 1122 , thereby reducing the radial space requirement of the bus assembly 110 .

[0127] Furthermore, if Figure 3 and Figure 4As shown, there are multiple second welding hooks 1124, spaced apart on the outer ring of the main body. Each of the second welding hooks 1124 includes a first end connected to the main body and a second end (free end) facing away from the first end. The second ends of the second welding hooks 1124 are bent / curved to form a wire-accommodating region, into which the stator winding terminals extend and connect to the second welding hooks 1124. Furthermore, the second ends of the second welding hooks 1124 are bent toward the same side, meaning that only one wire-accommodating region is formed between two adjacent second welding hooks 1124. This means that only one winding terminal is accommodated between two second welding hooks 1124. This ensures that the winding terminals are evenly distributed, providing ample space for welding the winding terminals, and preventing interference between the multiple terminal welding structures. If the free ends of two adjacent second welding hooks 1124 are bent toward each other, two wire-accommodating areas are formed between the two second welding hooks 1124. This requires concentrated welding of the two winding terminals between the two second welding hooks 1124, making welding more difficult. Specifically, the free ends of the plurality of second welding hooks 1124 can be bent in either a counterclockwise or clockwise direction.

[0128] It is worth noting that at least three phase busbars 1122 have the same structure, that is, the phase busbars 1122 share a common mold. For the entire busbar assembly 110, only two molds are required: one for preparing the phase busbars 1122 and the other for preparing the neutral busbar 1123. This can reduce the number of molds used to prepare the busbars 112, reduce the processing difficulty of the busbars 112, improve production efficiency, reduce the production cost of the busbar 100, and effectively enhance the competitiveness of the product. Furthermore, the busbars 112 are made of copper, which has good electrical conductivity and is relatively inexpensive. In addition, copper has the advantages of being easy to stamp and forming and having sufficient hardness.

[0129] The main body section of each phase busbar 1122 includes a first main body section, a second main body section, and a third main body section that are connected. At least three phase busbars 1122 include three phase copper bars. The first main body section of any of the three phase copper bars is located outside the other two phase copper bars, the second main body section of any phase copper bar is located between the other two phase copper bars, and a portion of the third main body section of any phase copper bar is located inside the other two phase copper bars. It should be noted that "inside" refers to the direction toward the central axis. "Outside" refers to the direction away from the central axis. For a phase copper bar, the distance between the first main body section and the central axis can be equal or unequal. Similarly, the distance between the second and third main body sections and the central axis is not limited. However, the minimum distance between the first main section and the central axis is greater than the maximum distance between the second main section and the central axis, and the minimum distance between the second main section and the central axis is greater than the maximum distance between the third main section and the central axis, thereby preventing the three phase copper bars from interfering with each other during assembly.

[0130] It should be noted that the second welding hook 1124 includes a terminal connection portion 1121 and an extension portion. The terminal connection portion 1121 extends axially and is located on the axial end surface of the main body segment. The terminal connection portion 1121 is used to mount the terminal assembly 120 of the motor 200. Each terminal connection portion 1121 can mount one terminal assembly 120. By providing a corresponding terminal connection portion 1121 for each terminal assembly 120, accurate installation of the terminal assembly 120 can be ensured. Specifically, if one second welding hook 1124 includes one terminal connection portion 1121, there are multiple terminal connection portions 1121. However, the number of terminal terminals 122 in the terminal assembly 120 of the motor 200 is less than the number of terminal connection portions 1121. Terminal connection portions 1121 can be selected at appropriate locations for connection based on the interface requirements of the motor 200. That is to say, not all terminal connection parts 1121 will correspond to the installation of the wiring terminal 122. The terminal connection parts 1121 at appropriate positions will be used. Setting multiple terminal connection parts 1121 can meet the various interface requirements of the motor 200.

[0131] Furthermore, the phase bus bar 1122 also includes a release groove, which is provided at the connection between the terminal connection part 1121, the extension part and the main section. The release groove can release the stress during the forming process of the second welding hook 1124. In addition, when the terminal of the winding is welded on the second welding hook 1124, the second welding hook 1124 will be subjected to external force. The release groove can provide partial deformation margin to prevent fatigue fracture at the connection between the terminal connection part 1121, the extension part and the main section.

[0132] In a specific embodiment, the busbar 100 includes a busbar assembly 110 and a terminal assembly 120. The busbar assembly 110 includes a busbar skeleton 111 and a plurality of busbars 112. The plurality of busbars 112 are spaced apart on the busbar skeleton 111, and the plurality of busbars 112 include a plurality of terminal connecting portions 1121. The terminal assembly 120 is disposed on one axial side of the busbar assembly 110. The terminal assembly 120 includes a terminal skeleton 121 and a connection terminal 122 disposed on the terminal skeleton 121. The terminal skeleton 121 can be connected to the busbar skeleton 111, and the connection terminal 122 can be connected to one of the terminal connecting portions 1121. Among them, before the terminal assembly 120 and the bus assembly 110 are welded, the two are relatively independent components. In the actual processing process, the terminal assembly 120 and the bus assembly 110 can be processed separately. After the two are processed and formed, the two are assembled. During the assembly process, the terminal skeleton 121 and the bus skeleton 111 are pre-positioned, and then the terminal 122 and the terminal connection part 1121 are welded, which can reduce the processing difficulty, effectively improve the processing efficiency and reduce the processing cost. In addition, since the multiple bus bars 112 include multiple terminal connection parts 1121, the terminal 122 of the terminal assembly 120 can be welded to the terminal connection part 1121 that meets the interface requirements of the motor 200, thereby realizing the diversification of the interface of the motor 200 and improving the versatility of the bus assembly 110.

[0133] Specifically, the number of the terminal skeleton 121 is at least one, and the number of the wiring terminals 122 is multiple, that is, the terminal skeleton 121 and the wiring terminals 122 include different numbers of assembly methods.

[0134] For example, there is one terminal skeleton 121 and multiple connection terminals 122, and multiple connection terminals 122 are provided on one terminal skeleton 121. In this case, multiple connection terminals 122 are arranged circumferentially on one terminal skeleton 121 at intervals. If the multiple connection terminals 122 have the same structure, the multiple connection terminals 122 can be produced using a common mold, thereby reducing production costs.

[0135] Alternatively, there may be multiple terminal frames 121 and multiple wiring terminals 122, with the multiple wiring terminals 122 being disposed one-to-one on the multiple terminal frames 121. If the different interfaces of the motor 200 are relatively far apart, multiple independent wiring assemblies can be used, which is cost-effective and easy to assemble. In this case, the multiple wiring terminals 122 are evenly spaced and disposed on the busbar assembly 110.

[0136] According to a second aspect of the present invention, a motor 200 is provided, comprising a housing and a busbar 100 provided in any of the above-described designs, wherein busbar 100 is disposed within the housing. Motor 200 also includes a stator frame 210 disposed axially on one side of busbar 100, with stator frame 210 contacting busbar skeleton 111 of busbar 100.

[0137] The motor 200 provided by the present invention includes the busbar 100 provided by any of the above designs, and therefore has all the beneficial effects of the busbar 100, which will not be described in detail here.

[0138] Specifically, busbar 100 is applied to a 12-slot motor. Motor 200 includes 12 stator teeth, each of which is provided with a stator frame. Windings (enameled wire) are wound around the stator frame. The windings have multiple terminals (starting and ending). A 12-slot motor includes 24 terminals. The motor is connected in a Y-type manner, with four parallel connections.

[0139] It should be noted that the busbar 100 includes a bus assembly 110 and a terminal assembly 120. The bus assembly 110 includes a bus frame 111 and a plurality of bus bars 112. The plurality of bus bars 112 are spaced apart on the bus frame 111. The bus frame 111 is used to provide support for the plurality of bus bars 112 and to isolate adjacent bus bars 112 from the plurality of bus bars 112, thereby providing electrical insulation. The bus bar 112 is a conductor. The bus bar 112 is used to connect the winding ends of the plurality of windings of the stator of the motor 200 that need to be connected together, thereby achieving electrical connection of the plurality of winding ends and realizing the bus function. The bus bar 112 also includes a plurality of terminal connection portions 1121. The plurality of terminal connection portions 1121 provide a variety of setting positions for the terminal assembly 120, which can meet the various interface requirements of the motor 200. The terminal assembly 120 is arranged on one axial side of the bus assembly 110. The terminal assembly 120 includes a terminal skeleton 121 and a wiring terminal 122. The terminal skeleton 121 can be connected to the bus skeleton 111 to achieve structural connection and fixation, and can also achieve a pre-positioning function. The wiring terminal 122 can be connected to a terminal connection part 1121 to achieve electrical connection, that is, before the terminal assembly 120 and the bus assembly 110 are welded, the two are relatively independent components. In the actual processing process, the terminal assembly 120 and the bus assembly 110 can be processed separately. After the two are processed and formed separately, the two are assembled. During the assembly process, the terminal skeleton 121 and the bus skeleton 111 are pre-positioned, and then the wiring terminal 122 and the terminal connection part 1121 are welded, which can reduce the processing difficulty, effectively improve the processing efficiency and reduce the processing cost. In addition, since multiple bus bars 112 include multiple terminal connection parts 1121, the terminal terminals 122 of the terminal assembly 120 can be welded with terminal connection parts 1121 that meet the interface requirements of the motor 200, thereby achieving interface diversification of the motor 200 and improving the versatility of the bus assembly 110.

[0140] Furthermore, the motor 200 also includes a casing, and the bus 100 is arranged in the casing. The motor 200 also includes a stator frame 210, which is connected to one axial side of the bus 100. The stator frame 210 can contact the bus frame 111, and the two are positioned and assembled.

[0141] In one possible design, the motor 200 further includes a plurality of positioning portions 1112 and a mating portion, wherein the plurality of positioning portions 1112 are spaced apart on the busbar frame 111. The mating portion is provided on the stator frame 210 and connected to the positioning portions 1112 to enable the stator frame 210 to contact the busbar frame 111.

[0142] In this design, the motor 200 also includes multiple positioning portions 1112 and mating portions. The multiple positioning portions 1112 are spaced apart on the busbar frame 111. Specifically, a portion of the multiple positioning portions 1112 is located on the inner wall of the busbar frame 111, while another portion of the multiple positioning portions 1112 is located on the outer wall of the busbar frame 111, thereby enabling two-level positioning and installation. Furthermore, the mating portion is provided on the stator frame 210 and is connected to the positioning portion 1112 to ensure contact between the stator frame 210 and the busbar frame 111. The mating portion and the positioning portion 1112 are arranged in a one-to-one correspondence.

[0143] Specifically, the positioning portion 1112 and the matching portion can be snap-connected or riveted.

[0144] In a possible design, the motor 200 further includes a control component, which is arranged on the other side of the bus assembly 110 along the axial direction. The control component has a controller, and the controller is connected to the terminal 122 of the bus 100.

[0145] In this design, the motor 200 further includes a control assembly, which is disposed on the other side of the bus assembly 110 in the axial direction. The control assembly includes a controller, which is connected to the terminal 122 of the busbar 100. Specifically, the controller is connected to the second welding portion 1223 of the terminal 122.

[0146] According to a third aspect of the present invention, an electric power steering system is provided, comprising the motor 200 provided by any of the above designs.

[0147] The electric power steering system provided by the present invention includes the motor 200 provided by any of the above designs, and therefore has all the beneficial effects of the motor 200, which will not be described in detail here.

[0148] According to a fourth aspect of the present invention, a vehicle is provided, comprising the electric power steering system provided by any one of the above designs.

[0149] The vehicle provided by the present invention includes the electric power steering system provided by any of the above designs, and therefore has all the beneficial effects of the electric power steering system, which will not be described in detail here.

[0150] It is worth noting that the vehicle can be a traditional fuel vehicle or a new energy vehicle. Among them, new energy vehicles include pure electric vehicles, extended-range electric vehicles, hybrid vehicles, fuel cell electric vehicles, hydrogen engine vehicles, etc. In the present invention, the term "plurality" refers to two or more, unless otherwise clearly defined. Terms such as "installation", "connection", "connection", and "fixed" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0151] Throughout this specification, terms such as "one embodiment," "some embodiments," and "specific embodiments" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0152] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A busbar for a motor, characterized in that: include: A busbar assembly, comprising a busbar skeleton and a plurality of busbars, wherein the plurality of busbars are arranged on the busbar skeleton at intervals, and the plurality of busbars include a plurality of terminal connection portions; A terminal assembly is provided on one axial side of the busbar assembly, the terminal assembly comprising a terminal skeleton and a wiring terminal provided on the terminal skeleton, the terminal skeleton being connectable to the busbar skeleton, and the wiring terminal being connectable to one of the terminal connecting portions; The wiring terminal comprises: a connecting portion connected to the terminal skeleton; a first welding portion connected to an end of the connecting portion close to the busbar assembly and protruding from the terminal frame, wherein the first welding portion can be welded to the busbar; The terminal assembly further comprises: The avoidance opening is provided on the terminal skeleton corresponding to the first welding portion, and the number of the avoidance openings on the terminal skeleton is consistent with the number of the connecting terminals provided on the terminal skeleton.

2. The busbar according to claim 1, wherein: The number of the terminal skeleton is at least one, and the number of the connecting terminals is multiple.

3. The busbar according to claim 2, wherein: The number of the terminal skeleton is one, the number of the connecting terminals is multiple, and the multiple connecting terminals are arranged on one terminal skeleton.

4. The busbar according to claim 3, characterized in that The plurality of connection terminals are arranged at intervals along the circumferential direction on one terminal frame, and the plurality of connection terminals have the same structure.

5. The busbar according to claim 3, characterized in that The plurality of connection terminals are arranged in a straight line on one terminal frame, and the structures of the plurality of connection terminals are different.

6. The busbar according to claim 2, wherein: There are multiple terminal skeletons, and there are multiple connecting terminals. The multiple connecting terminals are arranged on the multiple terminal skeletons in a one-to-one correspondence.

7. The busbar according to claim 2, characterized in that The plurality of connection terminals are evenly spaced apart and arranged on the terminal frame or the busbar assembly.

8. The busbar according to any one of claims 1 to 7, characterized in that The wiring terminal further comprises: The second welding portion is connected to an end of the connecting portion away from the busbar assembly, protrudes from the terminal frame, and extends axially to be connected to the controller of the motor.

9. The busbar according to any one of claims 1 to 7, characterized in that The terminal skeleton comprises: an insulating body, wherein the connection terminals are arranged on the insulating body; A connecting piece is provided on the insulating body, and the connecting piece can be connected to the bus frame.

10. The busbar according to claim 9, characterized in that A portion of the insulating body extends axially away from the busbar assembly to form a reinforcement portion, and a portion of the connection terminal is disposed in the reinforcement portion.

11. The busbar according to claim 9, characterized in that The connecting member extends axially and close to the busbar assembly.

12. The busbar according to claim 9, wherein: There are multiple connecting members, and a wiring terminal is provided between two adjacent connecting members.

13. The busbar according to any one of claims 10 to 12, characterized in that The busbar further comprises: A plurality of assembly interfaces are arranged at intervals on the bus frame, and one of the connectors can be installed in one of the assembly interfaces to make the insulating body contact with the bus frame.

14. The busbar according to claim 13, wherein: The connecting piece includes: a plurality of elastic arms, with gaps between the plurality of elastic arms; A guide portion is provided at the free end of each elastic arm, a limiting step is formed between the guide portion and the elastic arm, and the guide portion extends into the assembly interface so that the limiting step is clamped on the bus frame.

15. A motor, characterized in that: include: chassis; The busbar according to any one of claims 1 to 14, wherein the busbar is arranged in the housing; as well as The stator frame is arranged on one axial side of the busbar, and the stator frame is in contact with the busbar skeleton of the busbar.

16. The motor according to claim 15, characterized in that The motor further comprises: A plurality of positioning parts are arranged at intervals on the confluence frame; The matching portion is provided on the stator frame, and the matching portion is connected to the positioning portion so that the stator frame is in contact with the bus frame.

17. The motor according to claim 15, characterized in that The motor further comprises: The control component is arranged on the other side of the busbar component in the axial direction. The control component has a controller, and the controller is connected to the connection terminals of the busbar.

18. An electric power steering system, characterized in that: include: A motor as claimed in any one of claims 15 to 17.

19. A vehicle, characterized in that: include: The electric power steering system as claimed in claim 18.

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