Driving assembly of vehicle and vehicle

Abstract

The utility model discloses a driving assembly of a vehicle and the vehicle, the driving assembly comprises a first driving motor, a second driving motor and a generator, and the first driving motor, the second driving motor and the generator are arranged in a triangular shape; wherein the first driving motor is suitable for driving a first wheel of the vehicle, and the second driving motor is suitable for driving a second wheel of the vehicle. In the application, the first driving motor is suitable for driving the first wheel of the vehicle, the second driving motor is suitable for driving the second wheel of the vehicle so as to realize independent driving of the two wheels in the vehicle, and the generator is used for supplying power to the first driving motor and the second driving motor so as to improve the endurance mileage of the vehicle. The first driving motor, the second driving motor and the generator are arranged in the triangular shape, so that the whole driving assembly is compact in structure and small in occupied space, and a larger placing space is provided for other parts of a vehicle.

Description

Technical Field

[0001] The present application relates to the technical field of vehicles, and particularly to a drive assembly of a vehicle and a vehicle. Background Art

[0002] With the development of science and technology and the improvement of transportation level, pollution reduction and emission reduction have become an inevitable trend and a common understanding in social development. As a transportation tool in the city, electric vehicles have increasingly become the mainstream transportation tool. At present, it has become a new development direction for new energy vehicles to control four wheels through four independent motors. The layout positions of the four drive motors are two drive motors in the front cabin and two drive motors under the rear floor. In order to improve the cruising range, high-speed driving economic efficiency and charging convenience of new energy vehicles, an engine and a generator are configured in the power drive system.

[0003] In the prior art, arranging an engine, a generator and two drive motors in the front cabin at the same time occupies a large space and affects the placement of other components. Summary of the Utility Model

[0004] The purpose of the present application is to provide a drive assembly of a vehicle and a vehicle, so as to solve the problems that the drive assembly occupies a large space and affects the placement of other components.

[0005] To achieve the purpose of the present application, the following technical solutions are provided in the present application:

[0006] In a first aspect, the present application provides a drive assembly of a vehicle, including:

[0007] A first drive motor, a second drive motor and a generator, the first drive motor, the second drive motor and the generator are arranged in a triangle;

[0008] Wherein, the first drive motor is adapted to drive a first wheel of the vehicle, and the second drive motor is adapted to drive a second wheel of the vehicle.

[0009] In an implementation manner, the projection of the generator in a first direction at least partially overlaps with the projections of the first drive motor and the second drive motor in the first direction.

[0010] In an implementation manner, the drive assembly further includes a first transmission mechanism and a second transmission mechanism. One end of the first transmission mechanism is connected to the first drive motor, and the other end of the first transmission mechanism is adapted to be connected to the first wheel. One end of the second transmission mechanism is connected to the second drive motor, and the other end of the second transmission mechanism is adapted to be connected to the second wheel. The first wheel and the second wheel are coaxially arranged;

[0011] In the second direction, the first transmission mechanism and the second transmission mechanism are located on the same side of the first drive motor and the second drive motor.

[0012] In one embodiment, the drive assembly further includes a third transmission mechanism. One end of the third transmission mechanism is connected to the generator, and the other end of the third transmission mechanism is adapted to be connected to the engine of the vehicle.

[0013] In the second direction, the first transmission mechanism, the second transmission mechanism, and the third transmission mechanism are located on the same side of the first drive motor and the second drive motor.

[0014] In one embodiment, the drive assembly further includes a housing, and the first drive motor, the second drive motor, and the generator are all housed in the housing.

[0015] In one embodiment, the drive assembly further includes a first transmission mechanism, a second transmission mechanism, and a third transmission mechanism. The first drive motor includes a first rotating shaft and a first stator core disposed around the first rotating shaft. The first rotating shaft is connected to the first transmission mechanism, and the first stator core is fixed to the housing.

[0016] The second drive motor includes a second rotating shaft and a second stator core disposed around the second rotating shaft. The second rotating shaft is connected to the second transmission mechanism, and the second stator core is fixed to the housing.

[0017] The generator includes a third rotating shaft and a third stator core disposed around the third rotating shaft. The third rotating shaft is connected to the third transmission mechanism, and the third stator core is fixed to the housing.

[0018] In one embodiment, the first transmission mechanism includes a first output shaft and a first transmission component. The first output shaft is adapted to be connected to a first wheel, the first transmission component is connected to the first output shaft and the first rotating shaft, and the first transmission component is housed in the housing.

[0019] In one embodiment, the second transmission mechanism includes a second output shaft and a second transmission component. The second output shaft is adapted to be connected to a second wheel, the second transmission component is connected to the second output shaft and the second rotating shaft, and the second transmission component is housed in the housing.

[0020] In one embodiment, the axis of the first output shaft and the axis of the second output shaft are on the same axis.

[0021] In one embodiment, the first drive motor and the second drive motor are spaced apart in the circumferential direction of the first output shaft or the second output shaft.

[0022] In one embodiment, the third transmission mechanism includes an input shaft and a third transmission component. The input shaft is adapted to be connected to the engine of the vehicle. The third transmission component is connected to the input shaft and the third rotating shaft, and the third transmission component is housed in the housing.

[0023] In one embodiment, the drive assembly further includes an input shaft and a third transmission component. The third transmission component is connected to the input shaft and the third rotating shaft, and the third transmission component is housed in the housing;

[0024] The third transmission component is located radially outside the first output shaft or the second output shaft.

[0025] In a second aspect, the present application further provides a vehicle, including a vehicle frame, an engine, and the drive assembly as described in the first aspect. The engine and the drive assembly are both disposed on the vehicle frame, and the engine is connected to the generator.

[0026] In one embodiment, the vehicle frame includes a first longitudinal beam and a second longitudinal beam. The first longitudinal beam and the second longitudinal beam are spaced apart in a second direction. The engine and the drive assembly are both disposed between the first longitudinal beam and the second longitudinal beam, and the engine is located on one side of the drive assembly in the second direction.

[0027] In one embodiment, the vehicle further includes a first wheel and a second wheel. The first wheel and the second wheel are coaxially arranged. The first drive motor is connected to the first wheel, and the second drive motor is connected to the second wheel.

[0028] In the present application, the drive assembly of the vehicle includes a first drive motor, a second drive motor, and a generator. The first drive motor is adapted to drive the first wheel of the vehicle, and the second drive motor is adapted to drive the second wheel of the vehicle to achieve independent drive of two wheels in the vehicle. The generator is used to supply power to the first drive motor and the second drive motor to increase the cruising range of the vehicle. By arranging the first drive motor, the second drive motor, and the generator in a triangular shape, the entire drive assembly has a compact structure, occupies a small space, and provides a larger placement space for other components of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0030] Figure 1 Partial structural schematic diagram of a vehicle according to an embodiment of the present application;

[0031] Figure 2 Partial three-dimensional structure diagram of a vehicle according to an embodiment of the present application;

[0032] Figure 3 Simplified diagram of the transmission system of a drive assembly according to an embodiment of the present application;

[0033] Figure 4 Internal structural schematic diagram of a drive assembly according to an embodiment of the present application;

[0034] Figure 5 is Figure 4 Schematic diagram of another perspective of;

[0035] Figure 6 Three-dimensional diagram of a drive assembly according to an embodiment of the present application;

[0036] Figure 7 is Figure 4 Schematic diagram of another perspective of.

[0037] Explanation of reference numerals:

[0038] 100, vehicle frame; 110, first longitudinal beam; 120, second longitudinal beam; 200, drive assembly; 210, housing; 211, first part; 212, second part; 213, third part; 214, connecting part; 220, first drive motor; 221, first rotating shaft; 222, first stator core; 230, second drive motor; 231, second rotating shaft; 232, second stator core; 240, generator; 241, third rotating shaft; 242, third stator core; 251, first output shaft; 252, second output shaft; 253, input shaft; 261, first gear; 262, second gear; 263, first gear shaft; 263a, fourth gear; 263b, fifth gear; 264, third gear; 271, sixth gear; 272, seventh gear; 273, second gear shaft; 273a, ninth gear; 273b, tenth gear; 274, eighth gear; 281, eleventh gear; 282, twelfth gear; 290, engine; 300, vehicle body; 400, drive shaft; 500, heat dissipation module; 610, first wheel; 620, second wheel. Detailed implementation manners

[0039] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0040] It should be noted that when a component is referred to as being "fixed to" another component, it can be directly on the other component or there may also be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time.

[0041] Unless otherwise defined, all technical and scientific terms used in the present application have the same meaning as commonly understood by those skilled in the technical field to which the present application belongs. The terms used in the present application in the specification are only for the purpose of describing specific embodiments and are not intended to limit the present application. The term "and / or" used in the present application includes any and all combinations of one or more of the related listed items.

[0042] Next, some embodiments of the present application will be described in detail in conjunction with the accompanying drawings. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0043] Refer to Figure 1 、 Figure 2 and Figure 3 , the present application provides a vehicle, which includes a vehicle frame 100 and a drive assembly 200. The drive assembly 200 is disposed on the vehicle frame 100. The drive assembly 200 provides power for the vehicle to drive the vehicle to travel. The vehicle further includes a body 300, a drive shaft 400, a heat dissipation module 500, and a steering system (not shown). The body 300 is connected to the vehicle frame 100. The body 300 is a place for passengers and drivers to ride, providing a comfortable and safe environment for passengers and also having the function of loading goods. The body 300 includes a body frame, body exterior parts, body interior parts, body electrical accessories, etc. The drive shaft 400 is an important component for transmitting power in the vehicle transmission system, used to transmit the power output by the power assembly to the wheels to make the vehicle generate driving force. The heat dissipation module 500 includes components such as a radiator, used to dissipate the heat generated by the drive assembly 200 to keep the drive assembly 200 at a normal operating temperature. The steering system is used to change or maintain the driving direction of the vehicle.

[0044] In new energy vehicles, in order to improve the vehicle's cruising range, high-speed driving economic efficiency, and charging convenience, an engine and a generator are configured in the power assembly.

[0045] In the prior art, the engine, generator and two drive motors are arranged in the front cabin of the vehicle at the same time, which takes up a lot of space and affects the placement of other components. In particular, there is insufficient clearance between the drive assembly and the left and right longitudinal beams of the frame, interference with the cooling module at the front end of the vehicle, interference with the steering system, and occupation of the engine exhaust pipe space.

[0046] refer to Figure 3 , Figure 4 and Figure 5 The present application provides a vehicle drive assembly 200 , which includes a housing 210 , a first drive motor 220 , a second drive motor 230 , and a generator 240 .

[0047] A vehicle includes multiple pairs of wheels that contact the ground, provide friction and support, and enable the vehicle to move. For example, a car usually has four wheels (two pairs), while some heavy trucks or special-purpose vehicles may have more wheels to provide better stability and carrying capacity. In addition, some specially designed vehicles, such as tanks or certain engineering vehicles, may use seven or more pairs of wheels. Among them, a pair of wheels refers to the left front wheel and the right front wheel, or the left rear wheel and the right rear wheel of the vehicle.

[0048] For example, the left front wheel of the vehicle is the first wheel 610, the right front wheel of the vehicle is the second wheel 620, and the first wheel 610 and the second wheel 620 are coaxially arranged. The first wheel 610 is connected to the drive assembly 200 through a transmission shaft 400, and the second wheel 620 is connected to the drive assembly 200 through another transmission shaft 400.

[0049] The drive assembly 200 is mounted on the frame 100 through the housing 210, and the first drive motor 220 is connected to the first wheel 610 to drive the first wheel 610 to rotate; the second drive motor 230 is connected to the second wheel 620 to drive the second wheel 620 to rotate. That is, the drive assembly 200 provided in the present application can realize independent driving of the first wheel 610 and the second wheel 620, improve traction and stability, and no differential is required. The generator 240 is used to power the first drive motor 220 and the second drive motor 230 to increase the cruising range of the vehicle. Among them, the electric energy generated by the generator 240 can be directly provided to the first drive motor 220 and the second drive motor 230, or the electric energy generated by the generator 240 is stored in the battery, and the electric power is transmitted to the first drive motor 220 and the second drive motor 230 through the battery.

[0050] The drive assembly 200 provided in the embodiment of the present application arranges the first drive motor 220, the second drive motor 230 and the generator 240 in a triangle so that the entire drive assembly 200 has a compact structure and occupies a small space, thereby providing more space for placing other components of the vehicle.

[0051] Among them, the triangular arrangement of the first drive motor 220, the second drive motor 230, and the generator 240 can be, but is not limited to, forms such as an equilateral triangle layout or an isosceles triangle layout, etc.

[0052] Reference Figure 3 、 Figure 4 and Figure 5 , the projection of the generator 240 in the first direction overlaps at least partially with the projections of the first drive motor 220 and the second drive motor 230 in the first direction, enabling the first drive motor 220, the second drive motor 230, and the generator 240 to be arranged more closely in space, reducing the independent space required for each of the first drive motor 220, the second drive motor 230, and the generator 240, thereby improving the space utilization rate.

[0053] Among them, the first direction is the radial direction of the first drive motor 220 or the second drive motor 230 or the generator 240, and the first direction can be the X direction.

[0054] The drive assembly 200 further includes a first transmission mechanism and a second transmission mechanism. One end of the first transmission mechanism is connected to the first drive motor 220, and the other end of the first transmission mechanism is adapted to be connected to the first wheel 610. One end of the second transmission mechanism is connected to the second drive motor 230, and the other end of the second transmission mechanism is adapted to be connected to the second wheel 620; in the second direction Y, the first transmission mechanism and the second transmission mechanism are located on the same side of the first drive motor 220 and the second drive motor 230. By arranging the first transmission mechanism and the second transmission mechanism on the same side of the first drive motor 220 and the second drive motor 230, the space of the drive assembly 200 in the second direction Y can be significantly reduced, making the entire drive assembly 200 more compact and helping to optimize the weight distribution of the vehicle.

[0055] Among them, the second direction Y is the axial direction of the first drive motor 220 or the second drive motor 230 or the generator 240.

[0056] In the embodiment of the present application, the drive assembly 200 further includes a third transmission mechanism. One end of the third transmission mechanism is connected to the generator 240, and the other end of the third transmission mechanism is adapted to be connected to the engine 290 of the vehicle; in the second direction Y, the first transmission mechanism, the second transmission mechanism, and the third transmission mechanism are located on the same side of the first drive motor 220 and the second drive motor 230 to further reduce the space of the drive assembly 200 in the second direction Y, making the entire drive assembly 200 more compact.

[0057] Reference Figure 2 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 7, the first drive motor 220 includes a first rotating shaft 221 and a first stator core 222 disposed around the first rotating shaft 221. The first rotating shaft 221 is connected to the first transmission mechanism, and the first stator core 222 is fixed to the housing 210. Specifically, the first stator core 222 belongs to the stator part of the first drive motor 220, and the first rotating shaft 221 belongs to the rotor part of the first drive motor 220. A winding is wound around the first stator core 222. The first drive motor 220 further includes a first rotor core, and the first rotating shaft 221 is fixed to the first rotor core. After the first drive motor 220 is powered on, the winding generates a rotating magnetic field. This rotating magnetic field acts on the rotor part of the first drive motor 220, thereby generating an induced current in the rotor. The induced current generates a magnetic field opposite to the rotating magnetic field, and the magnetic field drives the rotor to rotate, thereby converting electrical energy into mechanical energy to drive the wheels to rotate. Among them, the first rotating shaft 221 is supported on the housing 210 by bearings, enabling the first rotating shaft 221 to rotate relative to the first stator core 222.

[0058] The second drive motor 230 includes a second rotating shaft 231 and a second stator core 232 disposed around the second rotating shaft 231. The second rotating shaft 231 is connected to the second transmission mechanism, and the second stator core 232 is fixed to the housing 210. Specifically, the second stator core 232 belongs to the stator part of the second drive motor 230, and the second rotating shaft 231 belongs to the rotor part of the second drive motor 230. A winding is wound around the second stator core 232. The second drive motor 230 further includes a second rotor core, and the second rotating shaft 231 is fixed to the second rotor core. After the second drive motor 230 is powered on, the winding generates a rotating magnetic field. This rotating magnetic field acts on the rotor part of the second drive motor 230, thereby generating an induced current in the rotor. The induced current generates a magnetic field opposite to the rotating magnetic field, and the magnetic field drives the rotor to rotate, thereby converting electrical energy into mechanical energy to drive the wheels to rotate. Among them, the second rotating shaft 231 is supported on the housing 210 by bearings, enabling the second rotating shaft 231 to rotate relative to the second stator core 232.

[0059] The vehicle further includes an engine 290 which is disposed outside the housing 210. The generator 240 includes a third rotating shaft 241 and a third stator core 242 disposed around the third rotating shaft 241. The third rotating shaft 241 is drivingly connected to the output shaft of the engine 290 through a third transmission mechanism, and the third stator core 242 is fixed to the housing 210. The generator 240 converts mechanical energy into electrical energy. The third rotating shaft 241 is rotatably connected to the housing 210 through bearings, and windings are wound around the third stator core 242. The third stator core 242 belongs to the stator part of the generator 240, and the second rotating shaft 231 belongs to the rotor part of the generator 240, and windings are wound around the third stator core 242. The third rotating shaft 241 of the generator 240 is driven by the engine 290 to rotate. When the rotor of the generator 240 rotates in the third stator core 242, magnetic induction lines will be cut in the windings on the third stator core 242, thereby generating an induced electromotive force. This induced electromotive force is then output as electrical energy through an external circuit, so that the generator 240 supplies power to the first drive motor 220 and the second drive motor 230.

[0060] In the drive assembly 200 provided in the present application, by directly fixing the first stator core 222, the second stator core 232, and the third stator core 242 to the housing 210, that is, the first drive motor 220, the second drive motor 230, and the generator 240 do not need to be provided with independent housings respectively, the number of components is reduced, so that the overall structure of the drive assembly 200 is more compact and occupies less space.

[0061] The first transmission mechanism includes a first output shaft 251 and a first transmission component. The first output shaft 251 is used for drivingly connecting with one of a pair of vehicle wheels. The first transmission component is connected to the first output shaft 251 and the first rotating shaft 221, and the first transmission component is received in the housing 210. The first transmission component is used for connecting the first output shaft 251 and the first rotating shaft 221. The first transmission component includes a first gear 261 and a second gear 262. The first gear 261 is fixedly provided on the first rotating shaft 221, the second gear 262 is fixedly provided on the first output shaft 251, the first gear 261 is drivingly connected to the second gear 262, and the number of teeth of the first gear 261 is less than that of the second gear 262, so that the first gear 261 and the second gear 262 form a first-stage speed reduction when driving. Receiving the first transmission component in the housing 210 is equivalent to integrating the speed reducer of the first drive motor 220 into the housing 210 as well, so that the overall structure of the drive assembly 200 is more compact.

[0062] Optionally, the first transmission component further includes a first gear shaft 263 and a third gear 264. The third gear 264 is rotatably connected to the housing 210, and the first gear shaft 263 is rotatably connected to the housing 210. A fourth gear 263a and a fifth gear 263b are fixedly provided on the first gear shaft 263. The first gear 261 meshes with the fourth gear 263a, and the fifth gear 263b, the third gear 264, and the second gear 262 are meshed in sequence. The number of teeth of the first gear 261 is less than that of the fourth gear 263a, the number of teeth of the fifth gear 263b is less than that of the third gear 264, and the number of teeth of the third gear 264 is less than that of the second gear 262. Specifically, the meshing of the first gear 261 and the fourth gear 263a forms a first-stage speed reduction. The fifth gear 263b and the fourth gear 263a are coaxial, and the meshing of the fifth gear 263b and the third gear 264 forms a second-stage speed reduction. The meshing of the third gear 264 and the second gear 262 forms a third-stage speed reduction to achieve the effect of multi-stage speed reduction. The output speed of the first drive motor 220 is effectively reduced, thereby meeting the required lower speed during the driving of the wheels. While reducing the speed, the output torque is significantly increased through the first transmission component, enabling the wheels to obtain a greater driving force, thereby improving the load capacity and climbing ability of the vehicle.

[0063] The second transmission mechanism includes a second output shaft 252 and a second transmission component. The second output shaft 252 is used for driving connection with the other one of a pair of wheels in the vehicle. The second transmission component is connected to the second output shaft 252 and the second rotating shaft 231, and the second transmission component is received in the housing 210. The second transmission component is used for connecting the second output shaft 252 and the second rotating shaft 231. The second transmission component includes a sixth gear 271 and a seventh gear 272. The sixth gear 271 is fixedly provided on the second rotating shaft 231, and the seventh gear 272 is fixedly provided on the second output shaft 252. The sixth gear 271 is in transmission connection with the seventh gear 272, and the number of teeth of the sixth gear 271 is less than that of the seventh gear 272. So that the meshing of the sixth gear 271 and the seventh gear 272 forms a first-stage speed reduction. Receiving the second transmission component in the housing 210 is equivalent to integrating the reduction gearbox of the second drive motor 230 into the housing 210, making the overall structure of the drive assembly 200 more compact.

[0064] Optionally, the second transmission component further includes a second gear shaft 273 and an eighth gear 274. The eighth gear 274 is rotatably connected to the housing 210, and the second gear shaft 273 is rotatably connected to the housing 210. A ninth gear 273a and a tenth gear 273b are fixedly provided on the second gear shaft 273. The sixth gear 271 meshes with the ninth gear 273a, and the tenth gear 273b meshes with the eighth gear 274 and then meshes with the seventh gear 272 in sequence. The number of teeth of the sixth gear 271 is less than that of the ninth gear 273a, the number of teeth of the tenth gear 273b is less than that of the eighth gear 274, and the number of teeth of the eighth gear 274 is less than that of the seventh gear 272. Specifically, the meshing of the sixth gear 271 and the ninth gear 273a forms a first-stage speed reduction. The ninth gear 273a and the tenth gear 273b are coaxial. The meshing of the tenth gear 273b and the eighth gear 274 forms a second-stage speed reduction. The meshing of the eighth gear 274 and the seventh gear 272 forms a third-stage speed reduction to achieve the effect of multi-stage speed reduction. The output speed of the second drive motor 230 is effectively reduced, thereby meeting the required lower speed during the driving of the wheels. While reducing the speed, the output torque is significantly increased through the second transmission component, enabling the wheels to obtain a greater driving force, thereby improving the load capacity and climbing ability of the vehicle.

[0065] Among them, the axis of the first output shaft 251 and the axis of the second output shaft 252 are on the same axis. The second gear 262 is fixedly provided on the first output shaft 251, and the number of teeth of the third gear 264 is less than that of the second gear 262, and the diameter of the second gear 262 is larger. The seventh gear 272 is fixedly provided on the second output shaft 252, and the number of teeth of the eighth gear 274 is less than that of the seventh gear 272, and the diameter of the seventh gear 272 is larger. The axis of the first output shaft 251 and the axis of the second output shaft 252 are on the same axis, that is, the first output shaft 251 and the second output shaft 252 are coaxially arranged, so that the second gear 262 and the seventh gear 272 are arranged side by side to reduce the space occupied by the housing 210 in the radial direction of the first output shaft 251.

[0066] In the drive assembly 200 provided in the present application, the first drive motor 220 and the second drive motor 230 are spaced apart in the circumferential direction of the first output shaft 251 or the second output shaft 252 to reduce the space occupied by the first drive motor 220 and the second drive motor 230 in the axial direction of the first output shaft 251 of the housing 210, thereby reducing the size of the housing 210 in the axial direction of the first output shaft 251, so that the drive assembly 200 can be placed between the left and right longitudinal beams of the vehicle frame 100.

[0067] The third transmission mechanism includes an input shaft 253 and a third transmission component. The third transmission component is connected to the input shaft 253 and the third rotating shaft 241, and the third transmission component is housed in the housing 210. The input shaft 253 is connected to the output shaft of the engine 290. The third transmission component is used to connect the input shaft 253 and the third rotating shaft 241. The third transmission component includes an eleventh gear 281 and a twelfth gear 282. The eleventh gear 281 is fixedly provided on the third rotating shaft 241, and the twelfth gear 282 is fixedly provided on the input shaft 253. The number of teeth of the eleventh gear 281 is less than that of the twelfth gear 282, so that the twelfth gear 282 and the eleventh gear 281 are driven to form a first-stage speed increase. Housing the third transmission component in the housing 210 is equivalent to integrating the reduction gearbox of the generator 240 into the housing 210, making the overall structure of the drive assembly 200 more compact. The generator 240 has a relatively high rotational speed requirement. By connecting the third transmission component between the output shaft of the engine 290 and the third rotating shaft 241, the rotational speed matching is achieved and the power generation amount is increased.

[0068] In one embodiment, the third transmission component is located radially outside the first output shaft 251 or the second output shaft 252 to further reduce the size of the housing 210 in the axial direction of the first output shaft 251.

[0069] In the drive assembly 200 provided in the present application, the housing 210 includes a first part 211, a second part 212, and a third part 213 that are integrally provided. The size of the first part 211 in the axial direction of the first output shaft 251, the size of the second part 212 in the axial direction of the first output shaft 251, and the size of the third part 213 in the axial direction of the first output shaft 251 decrease in sequence. The first drive motor 220 and the second drive motor 230 are housed in the first part 211, the generator 240 is housed in the second part 212, and the first output shaft 251 and the second output shaft 252 are both rotatably connected to the third part 213. Specifically, the first output shaft 251 is connected to the first wheel 610 through a transmission shaft 400, and the second output shaft 252 is connected to the second wheel 620 through another transmission shaft 400. Connecting the first output shaft 251 and the second output shaft 252 to the third part 213 provides a larger installation space for the transmission shaft 400.

[0070] In one embodiment, the vehicle frame 100 includes a first longitudinal beam 110 and a second longitudinal beam 120. The first longitudinal beam 110 and the second longitudinal beam 120 are spaced apart in the second direction Y. Both the engine 290 and the drive assembly 200 are disposed between the first longitudinal beam 110 and the second longitudinal beam 120, and the engine 290 is located on one side of the drive assembly 200 in the second direction Y. Specifically, the engine 290 is fixed to the outer wall of the housing 210. A connecting portion 214 is provided on the outer wall of the housing 210. The connecting portion 214 is used to mount the engine 290. The engine 290 is connected to the housing 210 to further improve the integration of the drive assembly 200 and reduce the occupied space.

[0071] In the description of the embodiments of the present application, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0072] The above-disclosed is only a preferred embodiment of the present application. Of course, it cannot be used to limit the scope of the rights of the present application. Those of ordinary skill in the art can understand all or part of the processes of implementing the above embodiments, and the equivalent changes made according to the claims of the present application still fall within the scope covered by the present application.

Claims

1. A vehicle drive assembly, characterized in that: include: A first drive motor, a second drive motor and a generator, wherein the first drive motor, the second drive motor and the generator are arranged in a triangle; The first drive motor is suitable for driving a first wheel of the vehicle, and the second drive motor is suitable for driving a second wheel of the vehicle.

2. The drive assembly according to claim 1, characterized in that: A projection of the generator in the first direction at least partially overlaps with projections of the first drive motor and the second drive motor in the first direction.

3. The drive assembly according to claim 1, characterized in that: The drive assembly further includes a first transmission mechanism and a second transmission mechanism, one end of the first transmission mechanism is connected to the first drive motor, and the other end of the first transmission mechanism is suitable for connecting to the first wheel, one end of the second transmission mechanism is connected to the second drive motor, and the other end of the second transmission mechanism is suitable for connecting to the second wheel, and the first wheel and the second wheel are coaxially arranged; In the second direction, the first transmission mechanism and the second transmission mechanism are located on the same side of the first drive motor and the second drive motor.

4. The drive assembly according to claim 3, characterized in that: The drive assembly further includes a third transmission mechanism, one end of which is connected to the generator, and the other end of which is suitable for being connected to the engine of the vehicle; In the second direction, the first transmission mechanism, the second transmission mechanism and the third transmission mechanism are located on the same side of the first drive motor and the second drive motor.

5. The drive assembly according to claim 1, characterized in that: The drive assembly further includes a casing, and the first drive motor, the second drive motor and the generator are all accommodated in the casing.

6. The drive assembly according to claim 5, characterized in that: The driving assembly further includes a first transmission mechanism, a second transmission mechanism and a third transmission mechanism, the first driving motor includes a first rotating shaft and a first stator core arranged around the first rotating shaft, the first rotating shaft is connected to the first transmission mechanism, and the first stator core is fixed to the housing; The second driving motor includes a second rotating shaft and a second stator core arranged around the second rotating shaft, the second rotating shaft is connected to the second transmission mechanism, and the second stator core is fixed on the housing; The generator comprises a third rotating shaft and a third stator core arranged around the third rotating shaft, the third rotating shaft is connected to the third transmission mechanism, and the third stator core is fixed on the casing.

7. The drive assembly according to claim 6, characterized in that: The first transmission mechanism includes a first output shaft and a first transmission component. The first output shaft is suitable for being connected to a first wheel. The first transmission component is connected to the first output shaft and the first rotating shaft. The first transmission component is accommodated in the housing.

8. The drive assembly according to claim 7, characterized in that: The second transmission mechanism includes a second output shaft and a second transmission component, the second output shaft is suitable for being connected to the second wheel, the second transmission component is connected to the second output shaft and the second rotating shaft, and the second transmission component is accommodated in the housing.

9. The drive assembly according to claim 8, characterized in that: An axis of the first output shaft and an axis of the second output shaft are coaxial.

10. The drive assembly according to claim 9, characterized in that: The first drive motor and the second drive motor are disposed at intervals in a circumferential direction of the first output shaft or the second output shaft.

11. The drive assembly according to claim 6, characterized in that: The third transmission mechanism comprises an input shaft and a third transmission component, wherein the input shaft is suitable for being connected to an engine of a vehicle, the third transmission component is connected to the input shaft and the third rotating shaft, and the third transmission component is accommodated in the casing.

12. The drive assembly according to claim 9, characterized in that: The driving assembly further includes an input shaft and a third transmission component, wherein the third transmission component is connected to the input shaft and the third rotating shaft, and the third transmission component is accommodated in the housing; The third transmission component is located at a radial periphery of the first output shaft or the second output shaft.

13. A vehicle, characterized in that: It comprises a vehicle frame, an engine and a drive assembly as described in any one of claims 1 to 12, wherein the engine and the drive assembly are both arranged on the vehicle frame, and the engine is connected to the generator.

14. The vehicle according to claim 13, characterized in that The frame includes a first longitudinal beam and a second longitudinal beam, the first longitudinal beam and the second longitudinal beam are spaced apart in a second direction, the engine and the drive assembly are both arranged between the first longitudinal beam and the second longitudinal beam, and the engine is located on one side of the drive assembly in the second direction.

15. The vehicle according to claim 13, characterized in that The vehicle further includes a first wheel and a second wheel, wherein the first wheel and the second wheel are coaxially arranged, the first drive motor is connected to the first wheel, and the second drive motor is connected to the second wheel.

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