Driving assembly, electric control assembly, power assembly, suspension system and vehicle

Abstract

The embodiment of the utility model discloses a driving assembly, an electric control assembly, a power assembly, a suspension system and a vehicle. The driving assembly comprises a first bridge arm and a second bridge arm which are arranged in the motor; the first bridge arm and the second bridge arm are arranged in the circumferential direction of the motor; a reserved area exists between the end, away from the second bridge arm, of the first bridge arm and the end, away from the first bridge arm, of the second bridge arm, so that the occupied space of the motor controller is reduced, and the size of the motor controller can be prevented from being increased in the process of achieving high integration of the motor controller.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electric machines, in particular to a driving assembly, an electric control assembly, a power assembly, a suspension system and a vehicle. BACKGROUND

[0002] With the rapid development of the new energy vehicle industry, the use requirements of new energy vehicles are increasing year by year, so that the internal available space of the motor controller is becoming more and more compact. Therefore, how to realize the high integration of the motor controller without increasing the size of the motor controller is a technical problem to be solved at present. CONTENT OF THE INVENTION

[0003] In view of the deficiencies of the prior art, the present application provides a driving assembly, an electric control assembly, a power assembly, a suspension system and a vehicle, which can reduce the occupied space in the motor controller, thereby avoiding the increase in the size of the motor controller in the process of realizing the high integration of the motor controller.

[0004] In a first aspect, the present application provides a driving assembly, comprising: a first bridge arm and a second bridge arm arranged in a motor;

[0005] Wherein, the first bridge arm and the second bridge arm are arranged along the circumferential direction of the motor; and between the end of the first bridge arm away from the second bridge arm and the end of the second bridge arm away from the first bridge arm, there is a reserved area.

[0006] In an implementation manner, the reserved area includes adjacent first and second reserved areas;

[0007] Wherein, the end of the first bridge arm away from the second bridge arm is located on the side of the second reserved area away from the first reserved area; and the end of the second bridge arm away from the first bridge arm is located on the side of the first reserved area away from the second reserved area.

[0008] In an implementation manner, the driving assembly further comprises a third bridge arm arranged in the first reserved area;

[0009] Wherein, the first bridge arm, the second bridge arm and the third bridge arm are arranged along the circumferential direction to form the second reserved area between the first bridge arm and the third bridge arm.

[0010] In an implementation manner, the first bridge arm, the second bridge arm and the third bridge arm are arranged along the circumferential direction to form a fan ring-shaped power module.

[0011] In an implementation manner, the motor is provided with a motor driving circuit, and the first bridge arm, the second bridge arm and the third bridge arm are connected in parallel in the motor driving circuit.

[0012] In an implementation, the motor is provided with a cavity, and one side of the motor in the axial direction is provided with an opening, and the first bridge arm, the second bridge arm and the third bridge arm are assembled in the cavity through the opening.

[0013] In an implementation, the driving assembly further comprises a first shell provided in the cavity.

[0014] The first shell is configured to assemble the first bridge arm, the second bridge arm and the third bridge arm.

[0015] In an implementation, the first bridge arm is provided with a heat dissipation part penetrating through the first shell on the side away from the axis of the motor; or / and,

[0016] The second bridge arm is provided with a heat dissipation part penetrating through the first shell on the side away from the axis of the motor; or / and,

[0017] The third bridge arm is provided with a heat dissipation part penetrating through the first shell on the side away from the axis of the motor.

[0018] In an implementation, the first shell comprises a first sub-shell, a second sub-shell and a third sub-shell.

[0019] The first sub-shell is configured to assemble the first bridge arm, the second sub-shell is configured to assemble the second bridge arm, and the third sub-shell is configured to assemble the third bridge arm.

[0020] In an implementation, the driving assembly is provided with a driving piece, and the first bridge arm, the second bridge arm and the third bridge arm are each provided with a first control terminal and a second control terminal; the driving piece is electrically connected to the first control terminal and the second control terminal.

[0021] In an implementation, the driving piece is provided on the side of the first shell close to the opening; or / and,

[0022] The cross section of the driving piece is a fan-shaped structure.

[0023] In an implementation, the driving piece has a normal projection on the second reserved area in the axial direction of the motor.

[0024] In an implementation, the first bridge arm, the second bridge arm and the third bridge arm are each provided with a first terminal, a second terminal and a third terminal, and the motor driving circuit is provided with a first bus and a second bus.

[0025] The first terminal and the second terminal are respectively electrically connected to the first bus and the second bus, and the third terminal is electrically connected to the motor.

[0026] In an implementation, the first terminal, the second terminal, the third terminal, the first control terminal and the second control terminal are provided on the side of the first shell close to the opening.

[0027] In an implementation, the first bridge arm, the second bridge arm and the third bridge arm each include an upper bridge arm and a lower bridge arm.

[0028] One end of the upper bridge arm forms the first terminal, the other end of the upper bridge arm is electrically connected with one end of the lower bridge arm to form the third terminal, and the other end of the lower bridge arm forms the second terminal.

[0029] In an implementation, the drive assembly further includes a fan-shaped bus capacitor arranged in the cavity.

[0030] The fan-shaped bus capacitor is arranged on one side of the first housing close to the axis of the motor.

[0031] In an implementation, the motor is provided with a cavity, and the cavity includes a first chamber and a second chamber.

[0032] The first chamber is arranged in a circumferential direction, and the second chamber is arranged on one side of the first chamber close to the axis of the motor. The first chamber is fitted with the first bridge arm, the second bridge arm and the third bridge arm, and the second chamber is fitted with the fan-shaped bus capacitor.

[0033] In an implementation, a fan-shaped barrier wall is arranged in the cavity, and the fan-shaped barrier wall is configured to separate the first chamber and the second chamber from the cavity.

[0034] In an implementation, a bridge arm barrier wall is further arranged in the cavity, and the bridge arm barrier wall is configured to isolate the first bridge arm, the second bridge arm and the third bridge arm.

[0035] In an implementation, the cavity further includes a third chamber, and the third chamber is separated from the first chamber and the second chamber by a chamber barrier wall to form a second reserved area.

[0036] In an implementation, the fan-shaped bus capacitor includes a capacitor base and at least one capacitor core.

[0037] The capacitor base is configured to assemble the capacitor core in a circumferential direction.

[0038] In an implementation, the capacitor base is provided with a first capacitor terminal and a second capacitor terminal on one side close to the opening.

[0039] The first capacitor terminal is electrically connected with the first bus, and the second capacitor terminal is electrically connected with the second bus.

[0040] In an implementation, the capacitor base is further provided with a fourth terminal on one side close to the opening.

[0041] The fourth terminal is electrically connected with the third terminal and the motor, respectively.

[0042] In an implementation, the fan-shaped bus capacitor further includes a capacitor positive copper bar and a capacitor negative copper bar.

[0043] The capacitor core is arranged between the positive copper bar and the negative copper bar.

[0044] In an implementation, the capacitor base is provided with a positive bus screw hole and a negative bus screw hole, and the motor drive circuit is provided with a first bus and a second bus.

[0045] The first capacitor terminal is electrically connected to the first bus through the positive bus screw hole, and the second capacitor terminal is electrically connected to the second bus through the negative bus screw hole.

[0046] In an implementation, the drive member is provided with a bus adapter on the side close to the opening.

[0047] The first capacitor terminal is electrically connected to the first bus through the positive bus screw hole, the bus adapter, and / or

[0048] The second capacitor terminal is electrically connected to the second bus through the negative bus screw hole, the bus adapter.

[0049] In an implementation, the drive member is provided with a relief hole configured to accommodate the bus adapter.

[0050] In an implementation, the bus adapter is provided with a control member on the side close to the opening, and the control member is electrically connected to the drive member.

[0051] In an implementation, a shielding member is arranged between the drive member and the control member.

[0052] In an implementation, the control member is provided with an electrically controlled end cover on the side away from the drive member, and the electrically controlled end cover is provided with an electrical connector.

[0053] The third terminal of the first bridge arm, the second bridge arm, and the third bridge arm is electrically connected to the electrical connector through the three-phase copper bar, and the electrical connector is electrically connected to the motor.

[0054] In an implementation, the fan-shaped bus capacitor includes three three-phase copper bars.

[0055] Each three-phase copper bar is provided with a three-phase screw hole, and the third terminal of the first bridge arm, the second bridge arm, and the third bridge arm is electrically connected to the electrical connector through the three-phase screw hole.

[0056] In an implementation, an insulating member is arranged between the three-phase copper bar and the negative copper bar.

[0057] In an implementation, the first shell is provided with a heat-conducting member on the side away from the axis.

[0058] In an implementation manner, the fan-shaped ring bus capacitor is provided with an elastic extrusion piece close to one side of the first shell, and the elastic extrusion piece is configured to abut the heat dissipation part of the first bridge arm, the second bridge arm and the third bridge arm with the heat conduction piece.

[0059] In a second aspect, the application further provides an electric control assembly, which comprises the driving assembly provided in the first aspect.

[0060] In a third aspect, the application further provides a power assembly, which comprises the electric machine, the electric control assembly provided in the second aspect and the speed reducer.

[0061] In a fourth aspect, the application further provides a suspension system, which comprises the driving assembly provided in the first aspect, or the electric control assembly provided in the second aspect, or the power assembly provided in the third aspect.

[0062] In a fifth aspect, the application further provides a vehicle, which comprises the driving assembly provided in the first aspect, or the electric control assembly provided in the second aspect, or the power assembly provided in the third aspect, or the suspension system provided in the fourth aspect.

[0063] The driving assembly provided in the application comprises the first bridge arm and the second bridge arm arranged in the electric machine; the first bridge arm and the second bridge arm are arranged along the circumferential direction of the electric machine; and the end of the first bridge arm away from the second bridge arm and the end of the second bridge arm away from the first bridge arm have a reserved area, so as to reduce the occupied space of the electric machine controller, and thus the increase of the size of the electric machine controller can be avoided in the process of realizing the high integration of the electric machine controller.

[0064] Other features and advantages of the application will be described in detail in the following specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0065] In order to more clearly illustrate the technical solutions of the embodiments of the application, the following will briefly introduce the drawings needed in the embodiment description. Obviously, the drawings in the following description are some embodiments of the application, and other drawings can also be obtained by those skilled in the art without any creative effort.

[0066] Figure 1 The first exploded view of the electric machine and the driving assembly provided in the embodiments of the application;

[0067] Figure 2 The structural schematic view of the fan-shaped ring power module provided in the embodiments of the application;

[0068] Figure 3 The structural schematic view of the bridge arm in the fan-shaped ring power module provided in the embodiments of the application;

[0069] Figure 4A circuit diagram of a motor driving circuit provided for an embodiment of the present application;

[0070] Figure 5 A structure diagram of a fan-shaped ring bus capacitor provided for an embodiment of the present application;

[0071] Figure 6 An exploded view of a fan-shaped ring bus capacitor provided for an embodiment of the present application;

[0072] Figure 7 A structure diagram of a motor provided for an embodiment of the present application;

[0073] Figure 8 A top view of a motor provided for an embodiment of the present application;

[0074] Figure 9 A second exploded view of a motor and a driving assembly provided for an embodiment of the present application.

[0075] Reference signs:

[0076] 10, driving assembly; 11, fan-shaped ring power module; 101, first bridge arm; 102, second bridge arm; 103, third bridge arm; 1011, first control terminal; 1012, second control terminal; 1013, first terminal; 1014, second terminal; 1015, third terminal; 1016, upper bridge arm; 1017, lower bridge arm; 1018, heat dissipation part; 110, first housing; 1101, first sub-housing; 1102, second sub-housing; 1103, third sub-housing; 12, fan-shaped ring bus capacitor; 121, capacitor base; 1211, first capacitor terminal; 1212, second capacitor terminal; 1213, fourth terminal; 1214, positive bus screw hole; 1215, negative bus screw hole; 122, capacitor core; 123, capacitor positive copper bar; 124, capacitor negative copper bar; 125, three-phase copper bar; 1251, three-phase screw hole; 13, driving piece; 131, avoiding hole; 14, bus adapter; 15, control piece; 16, shielding piece; 17, heat conduction piece; 18, elastic extrusion piece; 19, electric control end cover; 1000, motor driving circuit; 1001, first bus; 1002, second bus; 20, motor; 21, cavity; 211, first chamber; 212, second chamber; 213, third chamber; 22, bridge arm barrier; 23, fan-shaped ring barrier; 24, chamber barrier. DETAILED DESCRIPTION

[0077] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are some of the embodiments of the present application but not all of the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by a person of ordinary skill in the art without creative effort should fall within the scope of the present application.

[0078] It should be understood that the terms "comprising" and "including" as used in the specification and the appended claims indicate the presence of the described features, integers, steps, operations, elements, and / or components but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0079] It should also be understood that the terms used in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application. As used in the specification and the appended claims of the present application, the singular forms "a", "an" and "the" are intended to include the plural forms unless the context clearly indicates otherwise.

[0080] It should be further understood that the term "and / or" as used in the specification and the appended claims of the present application means any combination of one or more of the associated listed items and all possible combinations thereof, and includes these combinations.

[0081] In addition, in the present application, unless otherwise explicitly specified or limited in the embodiments, the terms "mounting", "connecting", "connecting" and "fixing" and the like appearing in the embodiments should be understood broadly, for example, the connection can be a fixed connection, or a detachable connection, or integrated, which can be understood, or can be a mechanical connection, an electrical connection, etc. Of course, it can also be directly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements, or the interaction relationship between two elements. For a person of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific implementation situation.

[0082] In the related art, a Chinese invention patent discloses a power tube annular arrangement driving assembly and a vehicle, which can arrange independent power tubes in a circumferential direction around an annular capacitor, and electrically connect the annular capacitor and the power tube through a circuit board assembly. In addition, the plurality of circumferentially arranged independent power tubes are closely arranged in the controller mounting cavity, and cooperate with the mutually connected motor cooling grooves and control cooling to dissipate heat.

[0083] However, the above products occupy larger volume under the premise of the same power requirement, and the independent power tube is arranged in the circumferential direction around the ring-shaped capacitor, which needs to be close to the inside of the controller installation cavity to achieve good heat dissipation effect, resulting in difficult installation and support. At the same time, the ring-shaped capacitor cooperates with the ring-shaped power tube, which occupies more space and is not conducive to the high integration design of the product.

[0084] Therefore, the application provides a driving assembly, which comprises a first bridge arm and a second bridge arm; the first bridge arm and the second bridge arm are connected in parallel in a motor driving circuit and are both electrically connected with a motor 20; meanwhile, the first bridge arm and the second bridge arm are arranged in the circumferential direction in a cavity inside the motor 20; one end of the first bridge arm away from the second bridge arm and one end of the second bridge arm away from the first bridge arm have a reserved area, so as to reduce the occupied space in the motor controller, thereby avoiding the increase of the size of the motor controller in the process of realizing the high integration of the motor controller.

[0085] Please refer to Figure 1 、 Figure 2 and Figure 4 , Figure 1 the first exploded view of the motor 20 and the driving assembly provided by the embodiments of the application; Figure 2 the structural schematic view of the fan ring-shaped power module provided by the embodiments of the application; Figure 4 the circuit diagram of the motor driving circuit provided by the embodiments of the application.

[0086] As shown in Figure 1 、 Figure 2 and Figure 4 , the application provides a driving assembly 10, which comprises a first bridge arm 101 and a second bridge arm 102 arranged in a motor 20;

[0087] Among them, the first bridge arm 101 and the second bridge arm 102 are arranged in the circumferential direction of the motor 20; one end of the first bridge arm 101 away from the second bridge arm 102 and one end of the second bridge arm 102 away from the first bridge arm 101 have a reserved area.

[0088] Specifically, the motor controller can be characterized by the driving assembly 10 mentioned in the application, and the bridge arm in the motor controller is an important component of the motor driving circuit 1000, which can be used as a power module of the motor driving circuit 1000 to control the forward and reverse rotation and speed of the motor 20.

[0089] In the embodiment, two bridge arms, i.e., the first bridge arm 101 and the second bridge arm 102, can be present in the driving assembly 10, and the first bridge arm 101 and the second bridge arm 102 can be connected in parallel between two buses of the motor driving circuit 1000, i.e., between the first bus 1001 and the second bus 1002, to form a power module, so that the motor 20 can be controlled to rotate forward and backward and at different speeds.

[0090] Meanwhile, the motor 20 can be provided with an open cavity 21, and the cavity 21 can be a circular cavity 21. The first bridge arm 101 and the second bridge arm 102 can be arranged in the circumferential direction of the motor 20 in the cavity 21, and the first bridge arm 101 and the second bridge arm 102 are not connected end to end, so that a reserved area is present between the end of the first bridge arm 101 away from the second bridge arm 102 and the end of the second bridge arm 102 away from the first bridge arm 101. In this way, the occupied space of the power module in the cavity 21 is reduced, so as to facilitate the arrangement of other devices in the motor controller, such as a control board, a direct-current charging relay, and other key components, in the reserved area. This not only reduces the size of the motor controller as a whole, but also facilitates the high integration of the motor controller.

[0091] The driving assembly 10 provided in the application includes the first bridge arm 101 and the second bridge arm 102 arranged in the circumferential direction of the motor 20 to form a fan-shaped power module 11, so that the occupied space of the power module in the motor controller is reduced, and the size of the motor controller is prevented from increasing during the process of high integration of the motor controller.

[0092] In some embodiments, the reserved area includes adjacent first and second reserved areas. The end of the first bridge arm 101 away from the second bridge arm 102 is located on the side of the second reserved area away from the first reserved area. The end of the second bridge arm 102 away from the first bridge arm 101 is located on the side of the first reserved area away from the second reserved area.

[0093] In the embodiment, the reserved area can be divided into the first and second reserved areas. The area occupied by the first bridge arm 101 inside the motor 20, the area occupied by the second bridge arm 102 inside the motor 20, the first and second reserved areas can form a circular annular space inside the motor 20 in the axial direction of the motor 20.

[0094] In some embodiments, as shown in FIG. 6, the first bridge arm 101 and the second bridge arm 102 can be arranged in the circumferential direction of the motor 20 in the cavity 21, and the first bridge arm 101 and the second bridge arm 102 are not connected end to end, so that a reserved area is present between the end of the first bridge arm 101 away from the second bridge arm 102 and the end of the second bridge arm 102 away from the first bridge arm 101. Figure 2 and Figure 4As shown, the drive assembly 10 further comprises a third bridge arm 103 arranged in the first reserved area; wherein the first bridge arm 101, the second bridge arm 102 and the third bridge arm 103 are arranged along the circumferential direction of the motor to form a second reserved area between the first bridge arm 101 and the third bridge arm 103.

[0095] In the embodiment, the motor 20 can be a three-phase motor, and the first bridge arm 101, the second bridge arm 102 and the third bridge arm 103 correspond to one phase of the three-phase motor respectively to realize driving the motor 20 by a three-phase alternating current power supply.

[0096] Specifically, when the first bridge arm 101, the second bridge arm 102 and the third bridge arm 103 are arranged along the circumferential direction of the motor 20 in the motor 20 respectively, the third bridge arm 103 can be arranged in the first reserved area, and the first bridge arm 101, the second bridge arm 102 and the third bridge arm 103 are not connected at the head and tail, so that a gap, i.e. the second reserved area, exists in the circumferential area formed by the first bridge arm 101, the second bridge arm 102 and the third bridge arm 103, thereby reducing the area occupied by the power module in the cavity 21 to facilitate the arrangement of other devices in the motor controller, such as a control board, a direct current charging relay and other key components, in the reserved area, which not only reduces the size of the motor controller as a whole, but also facilitates the high integration of the motor controller.

[0097] In some embodiments, as shown in Figure 1 , Figure 2 and Figure 4 , the motor 20 is provided with a cavity 21, and one side of the motor 20 in the axial direction is provided with an opening, and the first bridge arm 101, the second bridge arm 102 and the third bridge arm 103 are assembled in the cavity 21 through the opening.

[0098] In the embodiment, the motor 20 can be provided with a cavity 21, and one side of the motor in the axial direction is provided with an opening, which communicates with the cavity 21, and the power module formed by the first bridge arm 101, the second bridge arm 102 and the third bridge arm 103 can be assembled in the cavity 21 through the opening.

[0099] In some embodiments, as shown in Figure 4 , the motor 20 is provided with a motor drive circuit 1000, and the first bridge arm 101, the second bridge arm 102 and the third bridge arm 103 are connected in parallel in the motor drive circuit 1000.

[0100] In the embodiment, the first bridge arm 101, the second bridge arm 102 and the third bridge arm 103 can be connected in parallel between two bus bars of the motor drive circuit 1000, i.e. between the first bus bar 1001 and the second bus bar 1002, to form a power module, so that the motor 20 can be controlled to rotate forward and backward and at different speeds.

[0101] Further, in some embodiments, as shown in Figure 2 the first bridge arm 101, the second bridge arm 102 and the third bridge arm 103 are arranged along the circumferential direction of the motor 20 to form the fan ring power module 11.

[0102] In the present embodiment, after the first bridge arm 101, the second bridge arm 102 and the third bridge arm 103 are arranged along the circumferential direction of the motor 20 to form the fan ring power module 11, the gap area of the fan ring power module 11, i.e. the second reserved area, can be used to place other devices in the motor controller. Among them, the first bridge arm 101, the second bridge arm 102 and the third bridge arm 103 can all be bridge arms of fan ring structure.

[0103] It should be noted that the power module mentioned in the present application can be of fan ring structure, but it can also be of other structures, as long as there is no head-to-tail connection between the first bridge arm 101 and the second bridge arm 102, or there is no head-to-tail connection among the first bridge arm 101, the second bridge arm 102 and the third bridge arm 103, so as to reduce the occupied space of the power module in the cavity 21.

[0104] In some embodiments, as shown in Figure 2 and Figure 3 the driving assembly 10 further comprises a first shell 110 arranged in the cavity 21; wherein the first shell 110 is configured to assemble the first bridge arm 101, the second bridge arm 102 and the third bridge arm 103.

[0105] In the present embodiment, the first shell 110 can be a plastic shell, which can be a component for packaging the first bridge arm 101, the second bridge arm 102 and the third bridge arm 103, so as to realize the circumferential arrangement of the first bridge arm 101, the second bridge arm 102 and the third bridge arm 103 to form the fan ring power module 11.

[0106] In some embodiments, as shown in Figure 3 and Figure 9 the first bridge arm 101 is provided with a heat dissipation part 1018 penetrating through the first shell 110 on the side away from the axis of the motor 20; or / and, the second bridge arm 102 is provided with a heat dissipation part 1018 penetrating through the first shell 110 on the side away from the axis of the motor 20; or / and, the third bridge arm 103 is provided with a heat dissipation part 1018 away from the first shell 110 on the side close to the axis of the motor 20.

[0107] In the embodiment, the first bridge arm 101, the second bridge arm 102 and the third bridge arm 103 can each have a heat dissipation part 1018, which can be arranged on the side of the corresponding bridge arm away from the axis of the motor 20 and penetrate through the first shell 110, so that the first bridge arm 101, the second bridge arm 102 and the third bridge arm 103 can dissipate heat in the motor 20.

[0108] The heat dissipation part 1018 can be a metal heat dissipation surface of the first bridge arm 101, the second bridge arm 102 and the third bridge arm 103, which can be in contact with the inside of the motor 20 through a heat conduction sheet to dissipate the heat generated by the power module through heat exchange.

[0109] In some embodiments, as shown in Figure 2 and Figure 3 , the first shell 110 includes a first sub-shell 1101, a second sub-shell 1102 and a third sub-shell 1103; the first sub-shell 1101 is configured to assemble the first bridge arm 101, the second sub-shell 1102 is configured to assemble the second bridge arm 102, and the third sub-shell 1103 is configured to assemble the third bridge arm 103.

[0110] In the embodiment, the first shell 110 can be composed of three sub-shells, namely the first sub-shell 1101, the second sub-shell 1102 and the third sub-shell 1103, the first sub-shell 1101 can be a component for packaging the first bridge arm 101, the second sub-shell 1102 can be a component for packaging the second bridge arm 102, and the third sub-shell 1103 can be a component for packaging the third bridge arm 103. After the first bridge arm 101, the second bridge arm 102 and the third bridge arm 103 are respectively packaged, they can be arranged in the cavity 21 along the circumferential direction to form a second reserved area in the cavity 21, so as to reduce the occupied space of the power module in the cavity 21 and place other devices in the motor controller.

[0111] In some embodiments, as shown in Figure 1 , Figure 2 and Figure 3 , the drive assembly 10 is provided with a drive member 13, and the first bridge arm 101, the second bridge arm 102 and the third bridge arm 103 are each provided with a first control terminal 1011 and a second control terminal 1012; the drive member 13 is electrically connected to the first control terminal 1011 and the second control terminal 1012.

[0112] In the embodiment, the first control terminal 1011 and the second control terminal 1012 can be arranged on the side of the first housing 110 close to the motor 20 in the axial direction of the motor 20, and can also be understood as the side of the first housing 110 away from the opening of the cavity 21. Meanwhile, the driving member 13 can be a driving plate, which can be arranged on the side of the first housing 110 away from the opening of the cavity 21 and electrically connected to the first control terminal 1011 and the second control terminal 1012 on the first bridge arm 101, the second bridge arm 102 and the third bridge arm 103 respectively. Thus, the on-off of the switches in the first bridge arm 101, the second bridge arm 102 and the third bridge arm 103 can be controlled to realize the control of the motor to rotate forward and backward and the control of the rotating speed.

[0113] In some embodiments, as shown in Figure 1 , the driving member 13 is arranged on the side of the first housing 110 close to the opening. The driving member 13 has a fan-shaped structure in cross section.

[0114] In the embodiment, the driving member 13 can be a driving plate, which can be designed as a fan-shaped driving plate to further expand the space of the second reserved area, so that other devices in the motor controller can be better placed without affecting the normal operation of the power module, thereby improving the utilization rate of the internal space of the motor 20.

[0115] Further, in some embodiments, the orthographic projection of the driving member 13 in the axial direction is located on the second reserved area.

[0116] In the embodiment, by locating the orthographic projection of the driving member 13 in the axial direction on the second reserved area, the utilization rate of the internal space of the motor 20 can be further improved.

[0117] In some embodiments, as shown in Figure 1 , Figure 2 and Figure 3 , the first bridge arm 101, the second bridge arm 102 and the third bridge arm 103 are each provided with a first terminal 1013, a second terminal 1014 and a third terminal 1015, and the motor driving circuit 1000 is provided with a first bus 1001 and a second bus 1002. The first terminal 1013 and the second terminal 1014 are electrically connected to the first bus 1001 and the second bus 1002 of the motor driving circuit 1000 respectively, and the third terminal 1015 is electrically connected to the motor 20.

[0118] In the embodiment, the first terminal 1013 and the second terminal 1014 of the first bridge arm 101 are electrically connected to the first bus 1001 and the second bus 1002 of the motor driving circuit 1000 respectively, the first terminal 1013 and the second terminal 1014 of the second bridge arm 102 are electrically connected to the first bus 1001 and the second bus 1002 of the motor driving circuit 1000 respectively, and the first terminal 1013 and the second terminal 1014 of the third bridge arm 103 are electrically connected to the first bus 1001 and the second bus 1002 of the motor driving circuit 1000 respectively, so as to realize that the first bridge arm 101, the second bridge arm 102 and the third bridge arm 103 are connected in parallel in the motor driving circuit 1000, and the first bridge arm 101, the second bridge arm 102 and the third bridge arm 103 are each provided with the third terminal 1015 which can be electrically connected to one phase of the three-phase motor respectively, so as to realize that the three-phase power supply controls the motor 20 to operate.

[0119] In the embodiment, the first terminal 1013, the second terminal 1014 and the third terminal 1015 can be arranged on the side of the first shell 110 close to the opening.

[0120] In some embodiments, as shown in Figure 4 the first bridge arm 101, the second bridge arm 102 and the third bridge arm 103 each include an upper bridge arm 1016 and a lower bridge arm 1017; one end of the upper bridge arm 1016 forms the first terminal 1013, the other end of the upper bridge arm 1016 is electrically connected to one end of the lower bridge arm 1017 to form the third terminal 1015, and the other end of the lower bridge arm 1017 forms the second terminal 1014.

[0121] In the embodiment, the first bridge arm 101, the second bridge arm 102 and the third bridge arm 103 can each be composed of the upper bridge arm 1016 and the lower bridge arm 1017, and each bridge arm includes one or more switching devices such as MOSFET or IGBT.

[0122] Specifically, the upper bridge arm 1016 and the lower bridge arm 1017 can correspond to one switching device, and the upper bridge arm 1016 and the lower bridge arm 1017 are each provided with the first terminal 1013, the second terminal 1014 and a control terminal, the control terminal can be understood as the first control terminal 1011 or the second control terminal 1012 in the first bridge arm 101, the second bridge arm 102 and the third bridge arm 103, and the two terminals between the upper bridge arm 1016 and the lower bridge arm 1017 in each of the first bridge arm 101, the second bridge arm 102 and the third bridge arm 103 are electrically connected to form the third terminal 1015, for example, the first terminal 1013 of the upper bridge arm 1016 and the second terminal 1014 of the lower bridge arm 1017 in the first bridge arm 101 are connected to form the third terminal 1015 of the first bridge arm 101. In the embodiment, the first terminal 1013 and the second terminal 1014 can be understood as a source or a drain, or as a collector or an emitter, and the control terminal can be understood as a gate or a base.

[0123] In some embodiments, such as Figure 5 , Figure 6 and Figure 9 As shown, the drive assembly 10 also includes a sector annular bus capacitor 12 disposed in the cavity 21; wherein, the sector annular bus capacitor 12 is disposed on the side of the first housing 110 near the axis of the motor 20.

[0124] In this embodiment, after the first housing 110 is assembled with the first bridge arm 101, the second bridge arm 102 and the third bridge arm 103, a fan-shaped power module 11 can be formed. Then, the fan-shaped bus capacitor 12 can be set on the side of the fan-shaped power module 11 close to the axis of the motor 20. The center of the fan-shaped bus capacitor 12 can coincide with the circle of the cavity 21. At the same time, the bus capacitor is set in a fan-shaped structure, which can match the fan-shaped power module 11, so as to further expand the space of the second reserved area. This allows for better placement of other devices in the motor controller without affecting the normal operation of the power module, and improves the utilization rate of the internal space of the motor 20.

[0125] Meanwhile, both the power module and capacitor are designed in a fan-ring package, which not only greatly simplifies installation and shortens soldering time, but also significantly increases the drive current, enabling more flexible drive configurations and improving the space utilization of the motor controller, thereby achieving the goal of miniaturizing the motor controller. In addition, the fan-ring package design for both the power module and capacitor allows for a lower center of gravity distribution in the motor-controller assembly, and a lower center of gravity distribution is more conducive to the suspension layout of the controller assembly.

[0126] In some embodiments, such as Figure 7 and Figure 8 As shown, cavity 21 includes a first chamber 211 and a second chamber 212; wherein, the first chamber 211 is arranged in the circumferential direction, and the second chamber 212 is arranged on the side of the first chamber 211 near the axis of the motor. The first chamber 211 is equipped with a first bridge arm 101, a second bridge arm 102 and a third bridge arm 103, and the second chamber 212 is equipped with a sector annular bus capacitor 12.

[0127] In this embodiment, the first chamber 211 can be a fan-shaped annular structure chamber, and its external dimensions can be matched with the shape of the fan-shaped annular power module 11 to facilitate the placement of the first bridge arm 101, the second bridge arm 102 and the third bridge arm 103; the second chamber 212 can be a fan-shaped structure chamber, which can be formed with the center of the cavity 21 as the starting point, and the external dimensions of the second chamber 212 can be matched with the external dimensions of the fan-shaped annular bus capacitor 12 to facilitate the assembly of the fan-shaped annular bus capacitor 12.

[0128] It should be noted that the bus capacitor arranged in the drive assembly 10 can also be other shapes of capacitors, and the shape of the bus capacitor can be selected according to actual application, which is not limited in the present application.

[0129] In some embodiments, as shown in Figure 7 and Figure 8 , the cavity 21 is provided with a sector-shaped baffle wall 23, which is configured to divide the cavity 21 into a first chamber 211 and a second chamber 212.

[0130] In the present embodiment, the sector-shaped baffle wall 23 can be arranged around the inner wall of the motor 20 in the cavity 21, so as to divide the cavity 21 into the first chamber 211 and the second chamber 212, thereby realizing that the first chamber 211 can place the first bridge arm 101, the second bridge arm 102 and the third bridge arm 103, and the second chamber 212 can place the bus capacitor.

[0131] In some embodiments, as shown in Figure 7 and Figure 8 , the cavity 21 is further provided with a bridge arm baffle wall 22, which is configured to separate the first bridge arm 101, the second bridge arm 102 and the third bridge arm 103.

[0132] In the present embodiment, the bridge arm baffle wall 22 is arranged between the sector-shaped baffle wall 23 and the inner wall of the motor 20, which can divide the first chamber 211 into a plurality of chambers for placing the first bridge arm 101, the second bridge arm 102 and the third bridge arm 103 respectively, so as to realize the isolation of the first bridge arm 101, the second bridge arm 102 and the third bridge arm 103.

[0133] In some embodiments, as shown in Figure 7 and Figure 8 , the cavity 21 further includes a third chamber 213, and the third chamber 213 is separated from the first chamber 211 and the second chamber 212 respectively by a chamber baffle wall 24 to form a second reserved area.

[0134] In the present embodiment, the chamber baffle wall 24 includes three resisting parts, which can be understood as a first resisting part, a second resisting part and a third resisting part respectively, the first resisting part can isolate one end of the first chamber 211, the second resisting part can isolate the other end of the first chamber 211, and the third resisting part can isolate the second chamber 212, so as to divide the cavity 21 inside the motor 20 into three chambers, i.e. the first chamber 211, the second chamber 212 and the third chamber 213, wherein the third chamber 213 can be used as a second reserved area to place other devices in the motor controller, such as control boards, direct current charging relays and other key parts.

[0135] In some embodiments, as shown in Figure 5 andFigure 6 As shown in the figures, the fan-shaped ring bus capacitor 12 comprises a capacitor base 121 and at least one capacitor core 122; wherein the capacitor base 121 is configured to assemble the capacitor core 122 along the circumferential direction.

[0136] In the embodiment, the fan-shaped ring bus capacitor 12 can comprise a plurality of capacitor cores 122, which can be packaged in the capacitor base 121, while the capacitor base 121 can be arranged in a fan-shaped ring structure, and the capacitor base 121 is provided with a fan-shaped ring cavity to facilitate the arrangement of the capacitor core 122 along the circumferential direction.

[0137] In some embodiments, as shown in Figure 5 and Figure 6 the side of the capacitor base 121 close to the opening is provided with a first capacitor terminal 1211 and a second capacitor terminal 1212, the first capacitor terminal 1211 is electrically connected to the first bus 1001, and the second capacitor terminal 1212 is electrically connected to the second bus 1002.

[0138] In the embodiment, after the packaging of the capacitor core 122 in the capacitor base 121 is completed, the side of the capacitor base 121 close to the opening can form the first capacitor terminal 1211 and the second capacitor terminal 1212, the first capacitor terminal 1211 can be electrically connected to the first bus 1001 of the motor drive circuit 1000, and the second capacitor terminal 1212 can be electrically connected to the second bus 1002 of the motor drive circuit 1000.

[0139] In some embodiments, as shown in Figure 5 and Figure 6 the side of the capacitor base 121 close to the opening is further provided with a fourth terminal 1213, and the fourth terminal 1213 is respectively electrically connected to the third terminal 1015 and the motor.

[0140] In the embodiment, after the packaging of the capacitor core 122 in the capacitor base 121 is completed, the side of the capacitor base 121 close to the opening can form three fourth terminals 1213, and the fourth terminal 1213 can be electrically connected to the third terminal 1015 of the motor at the same time, i.e. the third terminal 1015 in the first bridge arm 101, the second bridge arm 102 and the third bridge arm 103 can be respectively electrically connected to one phase of the motor 20 through one fourth terminal 1213.

[0141] In some embodiments, as shown in Figure 5 and Figure 6 the fan-shaped ring bus capacitor 12 further comprises a capacitor positive copper bar 123 and a capacitor negative copper bar 124; wherein the capacitor core 122 is arranged between the capacitor positive copper bar 123 and the capacitor negative copper bar 124.

[0142] In the embodiment, the fan-shaped ring bus capacitor 12 can include a plurality of capacitor cores 122, which can be connected in series and parallel by using the positive copper bar 123 and the negative copper bar 124 in the capacitor base 121, and the plurality of capacitor cores 122 can be arranged between the positive copper bar 123 and the negative copper bar 124.

[0143] In some embodiments, as shown in Figure 5 and Figure 6 , the capacitor base 121 is provided with the positive bus screw hole 1214 and the negative bus screw hole 1215, and the motor drive circuit 1000 is provided with the first bus 1001 and the second bus 1002; the first capacitor terminal 1211 is electrically connected to the first bus 1001 by using the positive bus screw hole 1214, and the second capacitor terminal 1212 is electrically connected to the second bus 1002 by using the negative bus screw hole 1215.

[0144] In the embodiment, the first capacitor terminal 1211 and the second capacitor terminal 1212 can guide the lines to the positive bus screw hole 1214 and the negative bus screw hole 1215, respectively, so as to electrically connect the first bus 1001 and the second bus 1002 of the motor drive circuit 1000 at the positive bus screw hole 1214 and the negative bus screw hole 1215.

[0145] In some embodiments, as shown in Figure 1 , the driving member 13 is provided with the bus adapter 14 on the side close to the opening; the first capacitor terminal 1211 is electrically connected to the first bus 1001 by using the positive bus screw hole 1214 and the bus adapter 14 in sequence; and / or the second capacitor terminal 1212 is electrically connected to the second bus 1002 by using the negative bus screw hole 1215 and the bus adapter 14 in sequence.

[0146] In some embodiments, as shown in Figure 1 , the driving member 13 is provided with the avoiding hole 131, which is configured to avoid the bus adapter 14.

[0147] In the embodiment, the avoiding hole is configured to avoid the bus adapter 14, and the driving member 13 is provided with at least one avoiding hole 131, and specifically three avoiding holes 131 can be provided, so that the lines at the positive bus screw hole 1214 and the negative bus screw hole 1215 can be electrically connected to the bus adapter 14, thereby realizing that the fan-shaped ring bus capacitor 12, the first bridge arm 101, the second bridge arm 102 and the third bridge arm 103 are connected in parallel in the motor drive circuit 1000 and the wires are led out from the motor controller.

[0148] In some embodiments, as shown in Figure 1 , the bus adapter 14 is provided with the control member 15 on the side close to the opening, and the control member 15 is electrically connected to the driving member 13.

[0149] In the embodiment, the control member 15 can be a control board, which can receive information from various parts of the vehicle, such as driver demand torque, feedback torque, etc., and calculate the required current through the master control chip on the control board and send it to the driving member 13, so that the driving member 13 can control the on-off of the power module through the PWM wave, thereby realizing the size of the input and output currents of the motor controller.

[0150] In some embodiments, as shown in Figure 1 A shielding member 16 is arranged between the driving member 13 and the control member 15.

[0151] In the embodiment, the shielding member 16 can be a shielding board, which can isolate the control member 15 and the driving member 13 to avoid interference of the control member 15 and the driving member 13.

[0152] In some embodiments, as shown in Figure 5 and Figure 6 The control member 15 is provided with an electric control end cover 19 away from the driving member 13, and the electric control end cover 19 is provided with an electric connection member. The fan-shaped bus capacitor 12 further comprises at least one three-phase copper bar 125; wherein the third terminal 1015 in the first bridge arm 101, the second bridge arm 102 and the third bridge arm 103 adopts the three-phase copper bar 125 to electrically connect the electric connection member, and the electric connection member electrically connects the motor 20.

[0153] Further, in some embodiments, as shown in Figure 5 and Figure 6 The fan-shaped bus capacitor 12 comprises three three-phase copper bars 125; wherein each three-phase copper bar 125 is provided with three-phase screw holes 1251, and the third terminal 1015 in the first bridge arm 101, the second bridge arm 102 and the third bridge arm 103 adopts the three-phase screw holes 1251 to electrically connect the electric connection member.

[0154] In the embodiment, the electric control end cover 19 can be arranged on the top of the motor controller and provided with an electric connection member, which can be electrically connected with the motor 20. The three-phase copper bar 125 can be arranged on the side of the capacitor base 121 away from the motor 20 in the axial direction of the motor 20, and the three-phase copper bar 125 can be electrically connected with the fourth terminal 1213, which is electrically connected with the third terminal 1015. Thus, the first bridge arm 101, the second bridge arm 102 and the third bridge arm 103 are electrically connected with the motor through the three-phase copper bar 125 and the electric connection member on the electric control end cover 19, so as to realize the electrical connection with one phase of the motor. Meanwhile, three three-phase copper bars 125 can be arranged on the capacitor base 121, and each three-phase copper bar 125 can be used to electrically connect one phase of the motor.

[0155] In some embodiments, an insulating member is arranged between the three-phase copper bar 125 and the capacitor negative copper bar 124.

[0156] In the embodiment, since the three-phase copper bars 125 and the capacitor negative copper bars 124 respectively belong to different electrical networks, and the three-phase copper bars 125 and the capacitor negative copper bars 124 need to be insulated, the insulation between the three-phase copper bars 125 and the capacitor negative copper bars 124 can be achieved by using an insulating piece. The insulating piece can be an insulating film, which can be arranged on the three-phase copper bars 125, or arranged on the capacitor negative copper bars 124, or arranged on both the three-phase copper bars 125 and the capacitor negative copper bars 124, which can be selected according to actual application, and the application does not make specific limitation.

[0157] In some embodiments, as shown in Figure 9 The heat-conducting piece 17 is arranged on the side of the first housing 110 away from the axis of the motor 20.

[0158] In the embodiment, the heat-conducting piece 17 can be a heat-conducting gasket, which is arranged between the heat-dissipating part 1018 of the first bridge arm 101, the second bridge arm 102 and the third bridge arm 103 and the inner wall of the cavity 21. One end of the heat-conducting gasket can abut against the inner wall of the motor 20, and the other end of the heat-conducting gasket can abut against the heat-dissipating part 1018. Therefore, the heat generated by the first bridge arm 101, the second bridge arm 102 and the third bridge arm 103 can be conducted to the inner wall of the motor 20 through the heat-dissipating part 1018 and the heat-conducting gasket, so as to dissipate the heat emitted by the power module through heat exchange.

[0159] In some embodiments, as shown in Figure 9 The elastic extrusion piece 18 is arranged on the side of the fan ring bus capacitor 12 close to the first housing 110, and is configured to abut the heat-dissipating part 1018 of the first bridge arm 101, the second bridge arm 102 and the third bridge arm 103 against the heat-conducting piece 17.

[0160] In the embodiment, the first bridge arm 101, the second bridge arm 102 and the third bridge arm 103 can be extruded by the elastic extrusion piece 18, so that the heat-dissipating part 1018 of the first bridge arm 101, the second bridge arm 102 and the third bridge arm 103 can tightly adhere to the inner wall of the motor 20 through the heat-dissipating part, so as to dissipate the heat emitted by the power module through heat exchange.

[0161] In some embodiments, the application also provides an electric control assembly, which comprises the driving assembly 10 provided by the application.

[0162] Specifically, the electric control assembly provided by the application can be understood as a motor controller, which can realize reduction of the occupied space of the power module in the motor controller after using the driving assembly 10 provided by the application, so as to avoid increase of the size of the motor controller in the process of realizing high integration of the motor controller.

[0163] In some embodiments, the application further provides a power assembly, which comprises the motor 20, a reducer and the electric control assembly provided by the application.

[0164] In the embodiment, the motor 20 can be a linear motor, specifically a cylindrical linear motor. The motor can also be other types of motors. The type of the motor 20 can be selected according to actual application, which is not limited in the application. The reducer is a component of the automobile transmission system. The main function of the reducer is to reduce the rotating speed and increase the torque, so as to adapt to the demand of vehicle driving.

[0165] In some embodiments, the application further provides a suspension system, which comprises the driving assembly 10 provided by the application, or the electric control assembly provided by the application, or the power assembly provided by the application.

[0166] In some embodiments, the application further provides a vehicle, which comprises the driving assembly 10 provided by the application, or the electric control assembly provided by the application, or the power assembly provided by the application, or the suspension system provided by the application.

[0167] The above merely describes the specific embodiments of the application, but the protection scope of the application is not limited to this. Any person skilled in the art can easily think of various equivalent modifications or replacements within the technical range disclosed by the application. These modifications or replacements should be covered in the protection scope of the application. Therefore, the protection scope of the application should be subject to the protection scope of the claims.

Claims

1. A driving component (10), characterized in that, include: The first bridge arm (101) and the second bridge arm (102) are located inside the motor (20). The first bridge arm (101) and the second bridge arm (102) are arranged along the circumferential direction of the motor (20); there is a reserved area between the end of the first bridge arm (101) away from the second bridge arm (102) and the end of the second bridge arm (102) away from the first bridge arm (101).

2. The driving component (10) according to claim 1, characterized in that, The reserved area includes an adjacent first reserved area and a second reserved area; Wherein, the end of the first bridge arm (101) away from the second bridge arm (102) is located on the side of the second reserved area away from the first reserved area; the end of the second bridge arm (102) away from the first bridge arm (101) is located on the side of the first reserved area away from the second reserved area.

3. The driving component (10) according to claim 2, characterized in that, The drive assembly (10) also includes a third bridge arm (103) disposed in the first reserved area. The first bridge arm (101), the second bridge arm (102), and the third bridge arm (103) are arranged along the circumferential direction to form the second reserved area between the first bridge arm (101) and the third bridge arm (103).

4. The driving component (10) according to claim 3, characterized in that, The first bridge arm (101), the second bridge arm (102), and the third bridge arm (103) are arranged along the circumferential direction to form a fan-shaped power module (11).

5. The driving component (10) according to claim 3, characterized in that, The motor (20) is provided with a motor drive circuit (1000), and the first bridge arm (101), the second bridge arm (102), and the third bridge arm (103) are connected in parallel in the motor drive circuit (1000).

6. The driving component (10) according to claim 5, characterized in that, The motor (20) has a cavity (21), and an opening is provided on one side of the motor (20) in the axial direction. The first bridge arm (101), the second bridge arm (102), and the third bridge arm (103) are assembled in the cavity (21) through the opening.

7. The driving component (10) according to claim 6, characterized in that, The drive assembly (10) also includes a first housing (110) disposed in the cavity (21). The first housing (110) is configured to assemble the first bridge arm (101), the second bridge arm (102) and the third bridge arm (103).

8. The driving component (10) according to claim 7, characterized in that, The first bridge arm (101) has a heat dissipation portion (1018) penetrating the first housing (110) on the side away from the axis of the motor (20); or / and, The second bridge arm (102) has a heat dissipation portion (1018) penetrating the first housing (110) on the side away from the axis of the motor (20); or / and, The third bridge arm (103) has a heat dissipation part (1018) that penetrates the first housing (110) on the side away from the axis of the motor (20).

9. The driving component (10) according to claim 7, characterized in that, The first housing (110) includes a first sub-housing (1101), a second sub-housing (1102), and a third sub-housing (1103). The first sub-housing (1101) is configured to assemble the first bridge arm (101), the second sub-housing (1102) is configured to assemble the second bridge arm (102), and the third sub-housing (1103) is configured to assemble the third bridge arm (103).

10. The driving component (10) according to claim 7, characterized in that, The drive assembly (10) is provided with a drive member (13). The first bridge arm (101), the second bridge arm (102) and the third bridge arm (103) are each provided with a first control terminal (1011) and a second control terminal (1012). The drive member (13) is electrically connected to the first control terminal (1011) and the second control terminal (1012).

11. The driving component (10) according to claim 10, characterized in that, The drive element (13) is located on the side of the first housing (110) near the opening; or / and, The cross-section of the drive component (13) is a fan-shaped structure.

12. The driving component (10) according to claim 11, characterized in that, The orthographic projection of the drive element (13) in the axial direction of the motor (20) is located on the second reserved area.

13. The driving component (10) according to claim 11, characterized in that, The first bridge arm (101), the second bridge arm (102) and the third bridge arm (103) are each provided with a first terminal (1013), a second terminal (1014) and a third terminal (1015), and the motor drive circuit (1000) is provided with a first bus (1001) and a second bus (1002). The first terminal (1013) and the second terminal (1014) are electrically connected to the first busbar (1001) and the second busbar (1002) respectively, and the third terminal (1015) is electrically connected to the motor.

14. The driving component (10) according to claim 13, characterized in that, The first terminal (1013), the second terminal (1014), the third terminal (1015), the first control terminal (1011), and the second control terminal (1012) are located on the side of the first housing (110) near the opening.

15. The drive assembly (10) according to claim 13, characterized in that, The drive assembly (10) also includes a sector-shaped bus capacitor (12) disposed in the cavity (21). The sector-shaped bus capacitor (12) is located on the side of the first housing (110) near the axis of the motor (20).

16. The driving component (10) according to claim 15, characterized in that, The cavity (21) includes a first chamber (211) and a second chamber (212); The first chamber (211) is arranged along the circumferential direction, and the second chamber (212) is arranged on the side of the first chamber (211) near the axis of the motor (20). The first chamber (211) is equipped with the first bridge arm (101), the second bridge arm (102) and the third bridge arm (103), and the second chamber (212) is equipped with the sector annular bus capacitor (12).

17. The driving component (10) according to claim 16, characterized in that, The cavity (21) is provided with a fan-shaped annular baffle (23), which is configured to separate the first chamber (211) and the second chamber (212) from the cavity (21).

18. The drive assembly (10) according to claim 16, characterized in that, The cavity (21) is also provided with a bridge arm retaining wall (22), which is configured to isolate the first bridge arm (101), the second bridge arm (102) and the third bridge arm (103).

19. The drive assembly (10) according to claim 16, characterized in that, The cavity (21) further includes a third chamber (213), which is separated from the first chamber (211) and the second chamber (212) by a chamber baffle (24) to form the second reserved area.

20. The driving component (10) according to claim 15, characterized in that, The sector-shaped bus capacitor (12) includes a capacitor base (121) and at least one capacitor core (122). The capacitor base (121) is configured to assemble the capacitor core (122) along the circumferential direction.

21. The driving component (10) according to claim 20, characterized in that, The capacitor base (121) is provided with a first capacitor terminal (1211) and a second capacitor terminal (1212) on the side near the opening. The first capacitor terminal (1211) is electrically connected to the first bus (1001), and the second capacitor terminal (1212) is electrically connected to the second bus (1002).

22. The driving component (10) according to claim 21, characterized in that, The capacitor base (121) is also provided with a fourth terminal (1213) on the side near the opening. The fourth terminal (1213) is electrically connected to the third terminal (1015) and the motor (20).

23. The driving component (10) according to claim 21, characterized in that, The sector-shaped busbar capacitor (12) also includes a positive copper busbar (123) and a negative copper busbar (124). The capacitor core (122) is located between the positive copper busbar (123) and the negative copper busbar (124).

24. The driving component (10) according to claim 23, characterized in that, The capacitor base (121) is provided with a positive busbar screw hole (1214) and a negative busbar screw hole (1215), and the motor drive circuit (1000) is provided with a first busbar (1001) and a second busbar (1002). The first capacitor terminal (1211) is electrically connected to the first busbar (1001) via the positive busbar screw hole (1214), and the second capacitor terminal (1212) is electrically connected to the second busbar (1002) via the negative busbar screw hole (1215).

25. The driving component (10) according to claim 24, characterized in that, The drive unit (13) has a busbar adapter (14) on the side near the opening. Wherein, the first capacitor terminal (1211) is electrically connected to the first busbar (1001) via the positive busbar screw hole (1214) and the busbar adapter (14); or / and, The second capacitor terminal (1212) is electrically connected to the second busbar (1002) via the negative busbar screw hole (1215) and the busbar adapter (14) in sequence.

26. The driving component (10) according to claim 25, characterized in that, The drive unit (13) is provided with a clearance hole (131), which is configured to avoid the busbar adapter (14).

27. The driving component (10) according to claim 25, characterized in that, The busbar adapter (14) has a control element (15) on the side near the opening, and the control element (15) is electrically connected to the drive element (13).

28. The driving component (10) according to claim 27, characterized in that, A shielding element (16) is provided between the driving element (13) and the control element (15).

29. The driving component (10) according to claim 27, characterized in that, The control unit (15) is provided with an electrical control end cover (19) on the side away from the drive unit (13). The electrical control end cover (19) is provided with an electrical connector. The fan-shaped bus capacitor (12) also includes at least one three-phase copper bus (125). Among them, at least one of the third terminals (1015) of the first bridge arm (101), the second bridge arm (102) and the third bridge arm (103) is electrically connected to the electrical connector by the three-phase copper busbar (125), and the electrical connector is electrically connected to the motor (20).

30. The driving component (10) according to claim 29, characterized in that, The sector ring bus capacitor (12) includes three three-phase copper busbars (125). Each of the three-phase copper busbars (125) is provided with a three-phase screw hole (1251), and the third terminal (1015) of the first bridge arm (101), the second bridge arm (102) and the third bridge arm (103) are all electrically connected to the electrical connector through the three-phase screw hole (1251).

31. The driving component (10) according to claim 29, characterized in that, An insulating element is provided between the three-phase copper busbar (125) and the capacitor negative electrode copper busbar (124).

32. The driving component (10) according to claim 15, characterized in that, The first housing (110) has a heat-conducting element (17) on the side away from the axis.

33. The driving component (10) according to claim 32, characterized in that, The fan-shaped bus capacitor (12) has an elastic pressing member (18) on the side near the first housing (110). The elastic pressing member (18) is configured to abut the heat dissipation part (1018) of the first bridge arm (101), the second bridge arm (102) and the third bridge arm (103) against the heat-conducting member (17).

34. An electronic control assembly, characterized in that, Includes the drive component (10) according to any one of claims 1-33.

35. A powertrain, characterized in that, Includes a motor (20), the electronic control assembly as described in claim 34, and a reducer.

36. A suspension system, characterized in that, It includes the drive assembly (10) according to any one of claims 1-33, or the electronic control assembly according to claim 34, or the powertrain according to claim 35.

37. A vehicle, characterized in that, It includes the drive assembly (10) of any one of claims 1-33, or the electronic control assembly of claim 34, or the powertrain of claim 35, or the suspension system of claim 36.

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