Electric drive assembly and vehicle

Abstract

The invention provides an electric drive assembly and a vehicle. The electric drive assembly comprises a controller, a first shell and a motor. The controller comprises a direct-current input assembly and an alternating-current driving assembly electrically connected with the direct-current input assembly. A first containing cavity is formed in the first shell, and the motor is arranged in the first containing cavity and electrically connected with the alternating current driving assembly. The direct-current input assembly is arranged on the first side, deviating from the first containing cavity in the first direction, of the first shell, the alternating-current driving assembly is arranged on the second side, deviating from the first containing cavity in the second direction, of the first shell, and the first side and the second side are arranged adjacently; wherein the first direction intersects with the second direction, and the axial direction of the motor is perpendicular to the first direction and the second direction. By means of the mode, the space occupancy rate of the controller can be effectively reduced, and the overall size of the electric drive assembly is effectively reduced.

Description

Technical Field

[0001] The present application relates to the technical field of electric drive assemblies for vehicles, and in particular to an electric drive assembly and a vehicle. Background Art

[0002] In new energy vehicles, the three electrics (battery pack, motor, and controller (electronic control for short)) have always been the three core components. The battery pack is generally independent of the electronic control and motor and is arranged under the passenger compartment of the vehicle body. The electronic control and motor are also referred to as the electric drive assembly in this article. As a power unit, it is generally arranged as a set in the front cabin or / and the rear cabin of the vehicle body, and is the main source of the power performance of the whole vehicle. With the continuous improvement of the power performance of the whole vehicle, the volume of the controller of the existing electric drive assembly is too large, resulting in the overall space volume of the electric drive assembly being too large, which is not conducive to the overall space layout of the vehicle. Summary of the invention

[0003] The present application provides an electric drive assembly, which includes: a controller, a first housing, and a motor. The controller includes a DC input component and an AC drive component electrically connected to the DC input component. The first housing forms a first accommodating cavity, the motor is arranged in the first accommodating cavity, and is electrically connected to the AC drive component; the DC input component is arranged on a first side of the first housing away from the first accommodating cavity along a first direction, the AC drive component is arranged on a second side of the first housing away from the first accommodating cavity along a second direction, and the first side is arranged adjacent to the second side; wherein the first direction intersects with the second direction, and the axial direction of the motor is perpendicular to the first direction and the second direction.

[0004] In some embodiments, the first shell includes a first side wall, which is arranged axially to enclose a first accommodating cavity; on the first side, the first shell also includes a second side wall protruding along the first direction relative to the first side wall, and the second side wall and the first side wall are arranged to form a second accommodating cavity for accommodating a DC input component; and, on the second side, the first shell also includes a third side wall protruding along the second direction relative to the first side wall, and the third side wall and the first side wall are arranged to form a third accommodating cavity for accommodating an AC drive component.

[0005] In some embodiments, the first side surrounding wall is provided with a guide channel, which extends through the second accommodating cavity and the third accommodating cavity for receiving the cooling liquid.

[0006] In some embodiments, the AC drive component includes: a first circuit board, the main surface of the first circuit board is arranged perpendicular to the second direction; a drive control circuit, which is integrated on the first circuit board and electrically connected to the DC input component; an AC output component, which is arranged on a side of the first circuit board close to the first accommodating cavity along the second direction, and the AC output component is electrically connected to the drive control circuit and the motor, and is used to convert the DC signal input by the DC input component into an AC signal based on the control of the drive control circuit.

[0007] In some embodiments, the AC drive component also includes: a fixed bracket, the first circuit board and the AC output component are arranged on the fixed bracket, the first circuit board and the AC output component are connected to the first shell through the fixed bracket, and the fixed bracket is used to provide structural support for the first circuit board and the AC output component.

[0008] In some embodiments, the DC input component includes: a positive copper busbar, electrically connected to the positive input terminal of the AC drive component; a negative copper busbar, arranged side by side with the positive copper busbar and electrically connected to the negative input terminal of the AC drive component; a filter magnetic ring, arranged around the outer periphery of the positive copper busbar and the negative copper busbar; a second circuit board, electrically connected to the positive copper busbar and the negative copper busbar, respectively; a filter capacitor group, electrically connected to the second circuit board, and the second circuit board is used to electrically connect the filter capacitor group to the positive copper busbar and the negative copper busbar.

[0009] In some embodiments, the electric drive assembly further includes: a discharge resistor, which is integrated on the second circuit board, and the discharge resistor is electrically connected to the positive copper bus and the negative copper bus respectively through the second circuit board.

[0010] In some embodiments, along the first direction or the second direction, the DC input component and the AC drive component are located on the same side of the motor.

[0011] In some embodiments, the electric drive assembly also includes: two reduction assemblies, which are axially arranged on both sides of the motor, and the reduction assemblies are drivingly connected to the output shaft of the motor; two second shells, the second shells are axially assembled and connected to the first shell to form a fourth accommodating cavity for accommodating the reduction assembly with the first shell; wherein, along the axial direction, the reduction assembly overlaps with the DC input assembly, the AC drive assembly and the motor.

[0012] The present application also provides a vehicle, which includes the electric drive assembly described in any of the above embodiments.

[0013] The beneficial effect of the embodiment of the present application is that, different from the prior art, in the embodiment of the present application, the DC input component and the AC drive component are respectively arranged on two adjacent sides of the first shell, namely the first side and the second side, while maintaining electrical connection. The first side is the side of the first shell away from the first accommodating cavity along the first direction, and the second side is the side of the first shell away from the first accommodating cavity along the second direction. The first direction and the second direction are two different spatial directions arranged to intersect. Compared with arranging the DC input component and the AC drive component on one side of the first shell along the same spatial direction, arranging the DC input component and the AC drive component on the first side and the second side respectively can effectively improve the space utilization rate of the controller, thereby effectively reducing the space occupancy rate of the controller, and further effectively reducing the overall volume of the electric drive assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a three-dimensional structural schematic diagram of an embodiment of an electric drive assembly of the present application;

[0015] Figure 2 yes Figure 1 The front view of the electric drive assembly shown on the first side;

[0016] Figure 3 yes Figure 1 The schematic diagram of the front view of the electric drive assembly on the second side;

[0017] Figure 4 yes Figure 1 A three-dimensional structural schematic diagram of an embodiment of an AC drive assembly is shown;

[0018] Figure 5 yes Figure 1 A three-dimensional structural schematic diagram of an embodiment of a DC input component is shown. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0020] The terms "first" and "second" in this application are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. In the description of this application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically limited. In addition, the terms "including" and "having" and any of their variations are intended to cover exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally also includes steps or units that are not listed, or optionally also includes other steps or units inherent to these processes, methods, products or devices.

[0021] like Figure 1 , Figure 2 and Figure 3 As shown, the present application provides an electric drive assembly 10, which is applied to a vehicle, and the vehicle may be a new energy vehicle. Of course, in other embodiments, the electric drive assembly 10 may also be applied to other technical application fields.

[0022] The electric drive assembly 10 includes: a controller 200, a first housing 100 and a motor (not shown). The controller 200 includes a DC input component 210 and an AC drive component 220 electrically connected to the DC input component 210. The first housing 100 is formed with a first accommodating cavity (not shown), the motor is arranged in the first accommodating cavity and is electrically connected to the AC drive component 220; the DC input component 210 is arranged on a first side LB1 of the first housing 100 away from the first accommodating cavity along a first direction Z, and the AC drive component 220 is arranged on a second side LB2 of the first housing 100 away from the first accommodating cavity along a second direction Y, and the first side LB1 is arranged adjacent to the second side LB2; wherein the first direction Z intersects with the second direction Y, and the axial direction X of the motor is perpendicular to the first direction Z and the second direction Y.

[0023] Specifically, the DC input component 210 is a component connected to the battery pack of the vehicle, and is used to access the DC signal of the battery pack. The DC input component 210 is electrically connected to the AC drive component 220, and the AC drive component 220 is used to convert the DC signal into an AC signal to drive the motor. As the DC input component 210 and the AC drive component 220 are the electronic control components of the motor, as the user's demand for the vehicle's overall power performance continues to increase, in order to meet the performance requirements of the vehicle's power, the overall volume of the controller 200 composed of the DC input component 210 and the AC drive component 220 also needs to be continuously increased, which also leads to an increase in the spatial volume of the electric drive assembly 10, thereby increasing the body space occupancy rate of the electric drive assembly 10 to the vehicle, thereby reducing the vehicle's passenger space.

[0024] Different from the prior art, in the embodiment of the present application, the DC input component 210 and the AC drive component 220 are respectively arranged on two adjacent sides of the first housing 100, namely, the first side LB1 and the second side LB2, while maintaining electrical connection. The first side LB1 is the side of the first housing 100 away from the first accommodating cavity along the first direction Z, and the second side LB2 is the side of the first housing 100 away from the first accommodating cavity along the second direction Y. The first direction Z and the second direction Y are two different spatial directions intersectingly arranged. Compared with arranging the DC input component 210 and the AC drive component 220 on one side of the first housing 100 along the same spatial direction, arranging the DC input component 210 and the AC drive component 220 on the first side LB1 and the second side LB2 respectively can effectively improve the space utilization rate of the controller 200, thereby effectively reducing the space occupancy rate of the controller 200, and further effectively reducing the overall volume of the electric drive assembly 10. The smaller volume of the electric drive assembly 10 enables the vehicle to be provided with a larger passenger space, thereby effectively improving the user's vehicle experience.

[0025] The electrical connection between the DC input component 210 and the AC drive component 220 can be achieved through cables to improve the arrangement flexibility between the DC input component 210 and the AC drive component 220. In the embodiment of the present application, the first side LB1 of the first housing 100 for arranging the DC input component 210 and the second side LB2 for arranging the AC drive component 220 are adjacent to each other, which can effectively reduce the wiring distance for achieving electrical connection between the DC input component 210 and the AC drive component 220.

[0026] The first direction Z and the second direction Y are perpendicular to the axial direction X of the motor. In other words, the DC input component 210 and the AC drive component 220 are arranged in the radial space of the motor, which can reduce the occupation rate of the controller 200 in the axial direction X. In some embodiments, the first direction Z and the second direction Y can be set to be perpendicular to each other.

[0027] Alternatively, if Figure 1 , Figure 2 and Figure 3As shown, in some embodiments, the first housing 100 includes a first side wall 101, which is arranged around the axial direction X to enclose a first accommodation cavity. On the first side LB1, the first housing 100 also includes a second side wall 103 protruding from the first side wall 101 along the first direction Z, and the second side wall 103 and the first side wall 101 enclose a second accommodation cavity 103a for accommodating the DC input component 210; and, on the second side LB2, the first housing 100 also includes a third side wall 102 protruding from the first side wall 101 along the second direction Y, and the third side wall 102 and the first side wall 101 enclose a third accommodation cavity 102a for accommodating the AC drive component 220.

[0028] Specifically, the DC input component 210 and the AC drive component 220 are respectively arranged in the second accommodating chamber 103a and the third accommodating chamber 102a, and the first side surrounding wall 101 and the second side surrounding wall 103 can provide structural support for the DC input component 210 and can also provide physical protection for the DC input component 210, so as to reduce the risk of vibration and collision of the DC input component 210 relative to the first housing 100, thereby effectively improving the working stability of the DC input component 210. Correspondingly, the first side surrounding wall 101 and the third side surrounding wall 102 can provide structural support for the AC drive component 220 and can also provide physical protection for the AC drive component 220, so as to reduce the risk of vibration and collision of the AC drive component 220 relative to the first housing 100, thereby effectively improving the working stability of the DC input component 210.

[0029] In some embodiments, the first housing 100 may be an integrally formed part. In some embodiments, the second side wall 103 and the third side wall 102 may be configured to be detachably connected to the first side wall 101, that is, the second side wall 103 and the third side wall 102 may be detachably assembled to the first side wall 101 to form the second accommodating cavity 103a and the third accommodating cavity 102a, respectively.

[0030] Alternatively, if Figure 1 As shown, a through-hole connector interface (not shown) is provided on the second side wall 103 to match the high-voltage wiring harness of the vehicle, wherein the DC input component 210 is connected to the battery pack through the through-hole connector interface to receive the DC signal. A low-voltage signal connector 400 is provided on the third side wall 102, and the AC drive component 220 is connected to the vehicle control system through the low-voltage signal connector 400 to obtain the low-voltage signal command of the control system, so as to control the motor operation based on the low-voltage signal command.

[0031] Alternatively, if Figure 1 , Figure 2 and Figure 3As shown, the second accommodating chamber 103a and the third accommodating chamber 102a are both open chambers, wherein the opening of the second accommodating chamber 103a is oriented parallel to the first direction Z, and the opening of the third accommodating chamber 102a is oriented parallel to the second direction Y. The DC input component 210 can be installed into the second accommodating chamber 103a through the opening of the second accommodating chamber 103a, and the AC drive component 220 can be installed into the third accommodating chamber 102a through the opening of the third accommodating chamber 102a.

[0032] Optionally, the electric drive assembly 10 further includes a first protective cover (not shown) and a second protective cover (not shown), wherein the first protective cover is disposed at the opening of the second accommodating chamber 103a and is sealed and connected to the second side wall 103 to seal the DC input component 210 in the second accommodating chamber 103a. The second protective cover is disposed at the opening of the third accommodating chamber 102a and is sealed and connected to the third side wall 102 to seal the AC drive component 220 in the third accommodating chamber 102a. The first protective cover and the second side wall 103 can be sealed by dispensing glue to achieve a sealed connection. The second protective cover and the second side wall 103 can be sealed by dispensing glue to achieve a sealed connection.

[0033] Alternatively, if Figure 2 and Figure 3 As shown, in some embodiments, the first side wall 101 is provided with a guide channel (not marked in the figure), and the guide channel extends through the second accommodating chamber 103a and the third accommodating chamber 102a, and is used to connect the coolant. Specifically, the first shell 100 is provided with a liquid inlet (not marked in the figure) and a liquid outlet (not marked in the figure) connected to the guide channel, and the guide channel, the liquid inlet and the liquid outlet form a coolant circuit, the liquid inlet is used to dock with the coolant input device to connect the coolant, and the guide channel is used to guide the coolant so that the coolant flows through the second accommodating chamber 103a and the third accommodating chamber 102a respectively, so that the coolant can cool the DC input component 210 and the AC drive component 220, thereby effectively improving the working stability of the DC input component 210 and the AC drive component 220.

[0034] Alternatively, if Figure 2 and Figure 3As shown, the guide channel includes a first channel portion 1030 located on the first side wall 101 in the second accommodating cavity 103a, and a second channel portion 1020 located on the first side wall 101 in the third accommodating cavity 102a. The first channel portion 1030 is connected to the second channel portion 1020. Either the first channel portion 1030 or the second channel portion 1020 is connected to the liquid inlet, and the other is connected to the liquid outlet. For example, in an embodiment of the present application, the second channel portion 1020 is connected to the liquid inlet, and the first channel portion 1030 is connected to the liquid outlet, so that the cooling liquid flows through the second channel portion 1020 and the first channel portion 1030 in sequence through the liquid inlet.

[0035] Optionally, the guide channel is integrally formed on the first side wall 101 , which can effectively reduce the number of components of the electric drive assembly 10 , thereby effectively improving the assembly efficiency of the electric drive assembly 10 while also effectively reducing the cost of the electric drive assembly 10 .

[0036] Alternatively, if Figure 4 As shown, in some embodiments, the AC drive component 220 includes: a first circuit board 221, a drive control circuit (not shown) and an AC output component 222. The AC output component 222 is electrically connected to the drive control circuit and the DC input component 210, and is used to convert the DC signal input by the DC input component 210 into an AC signal based on the control of the drive control circuit. The drive control circuit is connected to the control system of the vehicle through a low-voltage signal connector 400 to obtain the low-voltage signal instruction of the control system, so as to control the AC output component 222 to output the corresponding AC signal based on the low-voltage signal instruction, thereby driving the motor to work. Among them, the first circuit board 221 provides circuit routing for the drive control circuit and the AC output component 222, and the drive control circuit is integrated and arranged on the first circuit board 221, so that the integration of the AC drive component 220 can be effectively improved, thereby effectively reducing the space volume of the AC drive component 220.

[0037] Alternatively, if Figure 4 As shown, the main surface 221a of the first circuit board 221 is arranged perpendicularly to the second direction Y. Specifically, the first circuit board 221 is a component with a relatively large space occupancy rate in the AC drive component 220. In other words, the first circuit board 221 is a plate, and the main surface 221a of the first circuit board 221 is also the board surface of the circuit board. The first circuit board 221 has a maximum space dimension in a space direction parallel to the main surface 221a of the first circuit board 221. Therefore, arranging the main surface 221a of the first circuit board 221 perpendicularly to the second direction Y can effectively reduce the space occupancy rate of the first circuit board 221 in the second direction Y, thereby effectively improving the space utilization rate of the first circuit board 221, and further effectively improving the space utilization rate of the AC drive component 220.

[0038] Optionally, the AC output component 222 is arranged on a side of the first circuit board 221 close to the first accommodating cavity along the second direction Y, which can effectively reduce the spatial dimensions of the AC drive component 220 along the spatial direction parallel to the main surface 221a of the first circuit board 221, making the spatial layout of the overall structure of the AC drive component 220 more reasonable, and effectively improving the space utilization of the AC drive component 220.

[0039] Alternatively, if Figure 4 As shown, in some embodiments, the AC drive component 220 further includes: a fixing bracket 223, the first circuit board 221 and the AC output component 222 are arranged on the fixing bracket 223, the first circuit board 221 and the AC output component 222 are connected to the first housing 100 through the fixing bracket 223, and the fixing bracket 223 is used to provide structural support for the first circuit board 221 and the AC output component 222. Specifically, in the embodiment of the present application, the first circuit board 221 provided with the drive control circuit and the AC output component 222 are assembled and connected through the fixing bracket 223 to form an embedded body, and then the embedded body is assembled into the third accommodating cavity 102a, which can effectively reduce the assembly difficulty of the AC drive component 220, thereby effectively improving the assembly efficiency of the electric drive assembly 10. Furthermore, in the original technical solution, an assembly tool for assembling the AC drive component 220 and the DC input component 210 is usually provided on the assembly line of the electric drive assembly 10, and the assembly tool is suitable for assembling components with larger volumes, such as the existing integrated controller 200 (that is, the controller 200 formed by integrating the AC drive component 220 and the DC input component 210). In the embodiment of the present application, the fixed bracket 223 provides structural support for the first circuit board 221 and the AC output component 222, while allowing the existing assembly tool to still be applicable to the assembly process between the first circuit board 221 and the AC output component 222, thereby effectively saving the assembly cost of the electric drive assembly 10.

[0040] Alternatively, if Figure 5As shown, in some embodiments, the DC input component 210 includes: a positive copper bar 215, a negative copper bar 216, a filter magnetic ring 212, a second circuit board 211 and a filter capacitor group 213. The negative copper bar 216 and the positive copper bar 215 are arranged side by side as two busbars for transmitting electrical signals in the DC input component 210. The positive copper bar 215 is electrically connected to the positive input end of the AC drive component 220, and serves as the positive busbar for transmitting electrical signals in the DC input component 210. The negative copper bar 216 is electrically connected to the negative input end of the AC drive component 220, and serves as the negative busbar for transmitting electrical signals in the DC input component 210. The filter magnetic ring 212 is arranged around the outer periphery of the positive copper bar 215 and the negative copper bar 216, and is used to perform high-frequency filtering on the electrical signals flowing through the positive busbar and the negative busbar to improve the working stability of the controller 200. The second circuit board 211 is electrically connected to the positive copper bar 215 and the negative copper bar 216, respectively, and the filter capacitor group 213 is electrically connected to the second circuit board 211. The second circuit board 211 is used to electrically connect the filter capacitor group 213 to the positive copper bar 215 and the negative copper bar 216, so that the filter capacitor group 213 performs filtering processing on the electrical signal flowing through the positive bus and the negative bus, so as to improve the working stability of the controller 200. Specifically, after the DC signal is connected to the positive copper bar 215 and the negative copper bar 216, it flows through the filter capacitor group 213 and the filter magnetic ring 212 in sequence and then inputs the AC drive component 220, so that the filter capacitor group 213 and the filter magnetic ring 212 can filter the DC signal to effectively filter out the interference signal entrained in the DC signal, thereby effectively improving the working stability of the controller 200.

[0041] Alternatively, if Figure 5 As shown, in some embodiments, the electric drive assembly 10 further includes: a discharge resistor 214, which is integrated on the second circuit board 211, and the discharge resistor 214 is electrically connected to the positive copper bus 215 and the negative copper bus 216 through the second circuit board 211. Specifically, the discharge resistor 214 is used to ensure the safe discharge of the filter capacitor group 213 and the filter magnetic ring 212, so as to reduce the damage or electric shock caused by the voltage accumulation of the filter capacitor group 213 and the filter magnetic ring 212, thereby effectively improving the working stability of the DC input component 210, and then effectively improving the working stability of the controller 200. In the existing technical solution, the discharge resistor 214 is usually integrated on the first circuit board 221. Compared with the existing technical solution, the integrated setting of the discharge resistor 214 on the second circuit board 211 can effectively reduce the space volume of the first circuit board 221.

[0042] Alternatively, if Figure 1As shown, in some embodiments, the DC input component 210 and the AC drive component 220 are located on the same side of the motor along the first direction Z or the second direction Y. Specifically, in the embodiment of the present application, the DC input component 210 and the AC drive component 220 are located on the same side of the motor along the second direction Y. Of course, in other embodiments, the DC input component 210 and the AC drive component 220 may also be located on the same side of the motor along the first direction Z.

[0043] Optionally, in some embodiments, the electric drive assembly 10 further includes: at least one reduction assembly (not shown), which is arranged on one side of the motor along the axial direction X, and is drivingly connected to the output shaft of the motor, for outputting the power output by the motor to the wheel body of the vehicle to drive the vehicle forward.

[0044] Specifically, in the embodiment of the present application, the electric drive assembly 10 includes: two reduction assemblies, which are respectively arranged on both sides of the motor along the axial direction X. The electric drive assembly 10 also includes two second housings 300, which are assembled and connected with the first housing 100 along the axial direction X to enclose the first housing 100 to form a fourth accommodating cavity (not marked in the figure) for accommodating the reduction assembly. The first housing 100 cooperates with the second housing 300 to seal the reduction assembly in the fourth accommodating cavity to effectively improve the working stability of the reduction assembly.

[0045] Among them, along the axial direction X, the reduction assembly, the DC input assembly 210, the AC drive assembly 220 and the motor are overlapped, so that the spatial structure between the reduction assembly, the DC input assembly 210, the AC drive assembly 220 and the motor is more compact, thereby effectively improving the space utilization of the electric drive assembly 10, and then effectively reducing the spatial volume of the electric drive assembly 10.

[0046] The present application also proposes a vehicle, wherein the vehicle includes the electric drive assembly 10 described in any one of the above embodiments.

[0047] It is worth noting that the drawings in this article are only intended to illustrate the structural relationship and connection relationship of the invention product of this application, and do not limit the specific structural dimensions of the invention product of this application.

[0048] The above are only implementation modes of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An electric drive assembly, characterized in that: include: A controller, comprising a DC input component and an AC drive component electrically connected to the DC input component; A first housing is formed with a first accommodating cavity; A motor, disposed in the first accommodating cavity and electrically connected to the AC drive assembly; The DC input component is disposed on a first side of the first housing along a first direction away from the first accommodating cavity, and the AC drive component is disposed on a second side of the first housing along a second direction away from the first accommodating cavity, and the first side is disposed adjacent to the second side; The first direction intersects with the second direction, and the axial direction of the motor is perpendicular to the first direction and the second direction.

2. The electric drive assembly according to claim 1, characterized in that: The first shell includes a first side surrounding wall, and the first side surrounding wall is arranged around the axial direction to surround and form the first accommodating cavity; On the first side, the first housing further includes a second side wall protruding relative to the first side wall along the first direction, the second side wall and the first side wall enclosing a second accommodating cavity for accommodating the DC input component; and On the second side, the first shell further includes a third side wall protruding along the second direction relative to the first side wall, and the third side wall and the first side wall are arranged to form a third accommodating cavity for accommodating the AC drive component.

3. The electric drive assembly according to claim 2, characterized in that: The first side surrounding wall is provided with a guide channel, and the guide channel extends through the second accommodating chamber and the third accommodating chamber, and is used for receiving cooling liquid.

4. The electric drive assembly according to claim 1, characterized in that: The AC drive assembly comprises: a first circuit board, wherein a main surface of the first circuit board is arranged perpendicular to the second direction; A drive control circuit, integrated on the first circuit board and electrically connected to the DC input component; An AC output component is arranged on a side of the first circuit board close to the first accommodating cavity along the second direction. The AC output component is electrically connected to the drive control circuit and the motor, and is used to convert the DC signal input by the DC input component into an AC signal based on the control of the drive control circuit.

5. The electric drive assembly according to claim 4, characterized in that: The AC drive assembly also includes: A fixing bracket, the first circuit board and the AC output component are arranged on the fixing bracket, the first circuit board and the AC output component are connected to the first shell through the fixing bracket, and the fixing bracket is used to provide structural support for the first circuit board and the AC output component.

6. The electric drive assembly according to claim 1, characterized in that: The DC input component comprises: A positive copper busbar, electrically connected to the positive input terminal of the AC drive component; A negative copper busbar, arranged side by side with the positive copper busbar and electrically connected to the negative input terminal of the AC drive component; A filter magnetic ring, arranged around the outer circumference of the positive copper bar and the negative copper bar; A second circuit board is electrically connected to the positive copper busbar and the negative copper busbar respectively; A filter capacitor group is electrically connected to the second circuit board, and the second circuit board is used to electrically connect the filter capacitor group to the positive copper busbar and the negative copper busbar.

7. The electric drive assembly according to claim 6, characterized in that: The electric drive assembly also includes: A bleeder resistor is integrated on the second circuit board, and the bleeder resistor is electrically connected to the positive copper busbar and the negative copper busbar through the second circuit board.

8. The electric drive assembly according to claim 1, characterized in that: Along the first direction or the second direction, the DC input component and the AC drive component are located on the same side of the motor.

9. The electric drive assembly according to claim 8, characterized in that: The electric drive assembly also includes: Two reduction assemblies are respectively arranged on both sides of the motor along the axial direction, and the reduction assemblies are drivingly connected to the output shaft of the motor; Two second housings, wherein the second housings are assembled and connected with the first housing along the axial direction to form a fourth accommodating cavity for accommodating the reduction assembly with the first housing; Wherein, along the axial direction, the reduction assembly, the DC input assembly, the AC drive assembly and the motor are overlapped.

10. A vehicle, characterized in that: Comprising the electric drive assembly as described in any one of claims 1-9.

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