Driving device and vehicle

Abstract

The application provides a driving device and a vehicle, the driving device comprising a first motor, the first motor being provided with an output shaft, the output shaft of the first motor being provided with a gear; a first transmission shaft, the first end and the second end of the first transmission shaft are both provided with gears, the gear of the first end of the first transmission shaft is engaged with the gear of the output shaft of the first motor, so that the output shaft of the first motor drives the first transmission shaft to rotate; a first differential, the first differential comprising an input shaft, a first output shaft and a second output shaft, the input shaft of the first differential being provided with a gear, the gear of the input shaft of the first differential being engaged with the gear of the second end of the first transmission shaft, so that the first transmission shaft drives the input shaft of the first differential to rotate; a first wheel, the first wheel being fixedly connected with the first end of the first output shaft; a second wheel, the second wheel being fixedly connected with a second transmission shaft, the first end of the second transmission shaft being fixedly connected with the first end of the second output shaft through an electromagnetic clutch. The application can reduce the energy consumption of the vehicle.

Description

Technical Field

[0001] This invention relates to the field of vehicle technology, and more specifically to a drive device and a vehicle. Background Technology

[0002] Four-wheel drive off-road vehicles are common and typically used in outdoor environments. In some technologies, these vehicles also enter urban areas. To reduce energy consumption on city roads, a two-wheel drive mode is incorporated. However, in these technologies, four-wheel drive off-road vehicles are controlled by two motors. In two-wheel drive mode, one motor stops working. But when the vehicle is moving forward, the drive shaft of the stopped motor continues to rotate, generating back electromotive force and consuming forward potential energy, resulting in relatively high energy consumption in two-wheel drive mode.

[0003] It is evident that the relevant technologies suffer from the problem of high energy consumption in two-wheel drive mode. Summary of the Invention

[0004] This invention provides a drive device and vehicle to solve the problem of high energy consumption in two-wheel drive mode in related technologies.

[0005] To achieve the above objectives, embodiments of the present invention provide a driving device, comprising:

[0006] A first motor, the first motor having an output shaft, the output shaft of the first motor having a gear;

[0007] A first drive shaft has gears at both its first and second ends. The gear at the first end of the first drive shaft meshes with the gear on the output shaft of the first motor, so that the output shaft of the first motor drives the first drive shaft to rotate.

[0008] The first differential includes an input shaft, a first output shaft, and a second output shaft. The input shaft of the first differential is provided with a gear, which meshes with a gear at the second end of the first drive shaft, so that the first drive shaft drives the input shaft of the first differential to rotate.

[0009] The first wheel is fixedly connected to the first end of the first output shaft;

[0010] The second wheel is fixedly connected to the second drive shaft. The first end of the second drive shaft is fixedly connected to the first end of the second output shaft via an electromagnetic clutch. The electromagnetic clutch is used to control the connection or disconnection between the second drive shaft and the second output shaft. When the second drive shaft is connected to the second output shaft, the second output shaft drives the second drive shaft to rotate.

[0011] In one embodiment, the first differential further includes:

[0012] The drive gear meshes with a gear at the end of the input shaft of the first differential away from the first drive shaft. The surface of the drive gear is provided with at least one fixing member, and the shaft of the drive gear is provided with a first through hole. The input shaft of the first differential drives the drive gear to rotate.

[0013] At least one planetary gear, each of the at least one planetary gear being rotatably connected to a different of the at least one fixing member, the axis of each planetary gear being perpendicular to the axis of the driving gear;

[0014] The first output shaft has a gear at its second end. After passing through the first through hole, the second end of the first output shaft meshes with each planetary gear, so that the driving gear drives the first output shaft to rotate through each planetary gear.

[0015] The second output shaft has a gear at its second end, which meshes with each of the planetary gears so that the driving gear drives the second output shaft to rotate through each of the planetary gears.

[0016] In one embodiment, the first differential further includes:

[0017] A first housing, wherein the first housing has a first accommodating cavity, a second through hole, and a third through hole, wherein...

[0018] The drive gear and each planetary gear are located within the first accommodating cavity, and the drive gear is rotatably connected to the inner wall of the first housing.

[0019] The first output shaft passes through the first through hole and the second through hole in sequence and is fixedly connected to the first wheel. The second output shaft is fixedly connected to the electromagnetic clutch through the third through hole.

[0020] In one embodiment, the axis of the first wheel, the axis of the second wheel, the axis of the second through hole, the axis of the second through hole, the axis of the second output shaft, and the axis of the second transmission shaft coincide.

[0021] In one embodiment, the drive unit further includes a controller electrically connected to the electromagnetic clutch, wherein...

[0022] Upon receiving an instruction to switch to four-wheel drive mode, the controller controls the connection between the first end of the second drive shaft and the first end of the second output shaft via the electromagnetic clutch, so that the motor drives the first output shaft and the second output shaft to rotate via the first drive shaft and the input shaft of the first differential.

[0023] Upon receiving an instruction to switch to two-wheel drive mode, the controller controls the first end of the second drive shaft to disconnect from the first end of the second output shaft via the electromagnetic clutch, so that while the first output shaft rotates, the second output shaft and the input shaft of the differential do not rotate.

[0024] In one embodiment, a gear is provided at the first end of the second output shaft and a gear is provided at the first end of the second transmission shaft. When the electromagnetic clutch controls the first end of the second transmission shaft to connect with the first end of the second output shaft, the gear at the first end of the second output shaft and the gear at the first end of the second transmission shaft mesh, so that the second output shaft drives the second transmission shaft to rotate.

[0025] In one embodiment, the drive device further includes:

[0026] The second housing has a second accommodating cavity, a fourth through hole, a fifth through hole, and a sixth through hole, wherein...

[0027] The first drive shaft, the first differential, and the electromagnetic clutch are located in the second accommodating cavity. The gear of the output shaft of the first motor meshes with the gear at the first end of the first drive shaft through the fourth through hole. The first output shaft is connected to the first wheel through the fifth through hole. The first end of the second drive shaft is connected to the electromagnetic clutch through the sixth through hole.

[0028] In one embodiment, the drive device further includes:

[0029] The second motor has an output shaft, and one end of the first motor has a gear.

[0030] The third drive shaft has gears at both its first and second ends. The gear at the first end of the third drive shaft meshes with the gear on the output shaft of the second motor, so that the output shaft of the second motor drives the third drive shaft to rotate.

[0031] The second differential includes an input shaft, a third output shaft, and a fourth output shaft. The input shaft of the second differential is provided with a gear, which meshes with a gear at the second end of the third drive shaft, so that the third drive shaft drives the input shaft of the second differential to rotate.

[0032] The third wheel is fixedly connected to the first end of the third output shaft;

[0033] The fourth wheel is fixedly connected to the first end of the fourth output shaft.

[0034] In one embodiment, the drive device further includes:

[0035] The third housing, wherein the third housing is provided with a third accommodating cavity, a seventh through hole, an eighth through hole, and a ninth through hole, wherein...

[0036] The third drive shaft and the second differential are located in the third accommodating cavity. The gear of the output shaft of the second motor meshes with the gear at the first end of the third drive shaft through the seventh through hole. The third output shaft is connected to the third wheel through the eighth through hole, and the fourth output shaft is connected to the fourth wheel through the ninth through hole.

[0037] This invention also provides a vehicle including the aforementioned drive device.

[0038] One of the above technical solutions has the following advantages or beneficial effects:

[0039] In this embodiment of the invention, a driving device is provided, comprising: a first motor, the first motor having an output shaft, the output shaft of the first motor having a gear; a first transmission shaft, both a first end and a second end of the first transmission shaft having gears, the gear at the first end of the first transmission shaft meshing with the gear at the output shaft of the first motor, so that the output shaft of the first motor drives the first transmission shaft to rotate; a first differential, the first differential including an input shaft, a first output shaft and a second output shaft, the input shaft of the first differential having a gear, the gear at the input shaft of the first differential meshing with the gear at the second end of the first transmission shaft, so that the first transmission shaft drives the input shaft of the first differential to rotate; and a first wheel, the first wheel being connected to the first output shaft. The first end is fixedly connected; the second wheel is fixedly connected to the second drive shaft. The first end of the second drive shaft is fixedly connected to the first end of the second output shaft via an electromagnetic clutch. The electromagnetic clutch is used to control the connection or disconnection of the second drive shaft and the second output shaft. When the second drive shaft and the second output shaft are connected, the second output shaft drives the second drive shaft to rotate. When the second drive shaft and the second output shaft are disconnected, there is a speed difference between the first output shaft and the second output shaft. Only the first output shaft rotates, and the input shaft and the second output shaft of the first differential do not rotate, so they do not drive the output shaft of the first motor to rotate. In this case, no back electromotive force is generated, thereby reducing energy loss. Attached Figure Description

[0040] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0041] Figure 1 This is one of the structural schematic diagrams of a driving device provided in an embodiment of the present invention;

[0042] Figure 2 This is one of the schematic diagrams of the first differential provided in the embodiments of the present invention;

[0043] Figure 3 This is a second schematic diagram of the first differential provided in an embodiment of the present invention;

[0044] Figure 4 This is a second schematic diagram of the structure of a driving device provided in an embodiment of the present invention. Detailed Implementation

[0045] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0046] like Figure 1 As shown, an embodiment of the present invention provides a driving device, characterized in that it includes:

[0047] A first motor 10, the first motor 10 is provided with an output shaft, and the output shaft 101 of the first motor 10 is provided with a gear;

[0048] A first drive shaft 20 is provided with gears at both its first and second ends. The gear at the first end of the first drive shaft 20 meshes with the gear on the output shaft 101 of the first motor 10, so that the output shaft 101 of the first motor 10 drives the first drive shaft 20 to rotate.

[0049] The first differential 30 includes an input shaft, a first output shaft 302, and a second output shaft 303. The input shaft 301 of the first differential 30 is provided with a gear, and the gear of the input shaft 301 of the first differential 30 meshes with the gear at the second end of the first drive shaft 20 so that the first drive shaft 20 drives the input shaft 301 of the first differential 30 to rotate.

[0050] The first wheel 40 is fixedly connected to the first end of the first output shaft 302;

[0051] The second wheel 41 is fixedly connected to the second drive shaft 21. The first end of the second drive shaft 21 is fixedly connected to the first end of the second output shaft 303 via an electromagnetic clutch 50. The electromagnetic clutch 50 is used to control the connection or disconnection between the second drive shaft 21 and the second output shaft 303. When the second drive shaft 21 is connected to the second output shaft 303, the second output shaft 303 drives the second drive shaft 21 to rotate.

[0052] The aforementioned first motor 10 is the motor that operates in four-wheel drive mode. It should be noted that four-wheel drive vehicles typically have two motors, one controlling the front wheels and the other controlling the rear wheels to achieve four-wheel drive. The first motor 10 in this invention operates in four-wheel drive mode but stops operating in two-wheel drive mode. The aforementioned first motor 10 has an output shaft, which drives the front or rear wheels of the vehicle to rotate. In related technologies, when the vehicle is in two-wheel drive mode, the movement of the wheels causes the output shaft 101 of the first motor 10 to rotate, generating a back electromotive force and increasing energy loss. In this embodiment of the invention, by combining the electromagnetic clutch 50 and the first differential 30, the output shaft 101 of the first motor 10 does not rotate when the vehicle is in two-wheel drive mode, thereby reducing energy loss. See subsequent embodiments for details.

[0053] The aforementioned first drive shaft 20 is used to connect the first differential 30 and the first motor 10, and realizes the transmission between the first motor 10, the first drive shaft 20, and the input shaft 301 of the first differential 30 through gear meshing. Specifically, the output shaft 101 of the first motor 10 is equipped with a gear, and the first end of the first drive shaft 20 is equipped with a gear. The gear on the output shaft 101 of the first motor 10 and the gear on the first end of the first drive shaft 20 are adapted to each other. Through the meshing of the gear on the output shaft 101 of the first motor 10 and the gear on the first end of the first drive shaft 20, the first drive shaft 20 is driven to rotate. The second end of the first drive shaft 20 is equipped with a gear, and the input shaft 301 of the first differential 30 is equipped with a gear. The gear on the second end of the first drive shaft 20 and the gear on the input shaft 301 of the first differential 30 are adapted to each other. Through the meshing of the gear on the second end of the first drive shaft 20 and the gear on the input shaft 301 of the first differential 30, the first drive shaft 20 drives the input shaft 301 of the first differential to rotate.

[0054] The aforementioned first differential 30 is used to control the rotation of the first output shaft 302 and the second output shaft 303. When the first motor 10 rotates, the input shaft 301 of the first differential 30 drives the first output shaft 302 and the second output shaft 303 to rotate. By setting the first differential 30, differential rotation of the first wheel 40 and the second wheel 41 under different speed conditions is achieved.

[0055] The aforementioned electromagnetic clutch 50 is used to control the connection and disconnection between the second output shaft 303 and the second drive shaft 21. When connected, the second output shaft 303 can drive the second drive shaft 21 and the second wheel 41 to rotate. Since the second output shaft 303 is the output shaft of the first differential 30, the speed difference between the first output shaft 302 and the second output shaft 303 is used to ensure that the input shaft of the first motor 10 does not rotate in two-wheel drive mode. The specific process is as follows:

[0056] When the vehicle is in two-wheel drive mode, the second output shaft 303 is disconnected from the second drive shaft 21, and the speed of the second output shaft 303 is 0. During vehicle movement, the first wheel 40 and the second wheel 41 remain in motion. The first wheel 40 rotates via the first output shaft 302. At this time, there is a speed difference between the first output shaft 302 and the second output shaft 303. Only the first output shaft 302 rotates; the input shaft 301 and the second output shaft 303 of the first differential 30 do not rotate, and therefore do not drive the output shaft 101 of the first motor 10 to rotate. In this situation, no back electromotive force is generated, thereby reducing energy loss.

[0057] The first wheel 40 and the second wheel 41 mentioned above can be the front wheel or the rear wheel of the vehicle. When the vehicle is in four-wheel drive mode, the first motor 10 can rotate the first wheel 40 and the second wheel 41; when the vehicle is in two-wheel drive mode, the first wheel 40 and the second wheel 41 can rotate freely.

[0058] In this embodiment of the invention, a driving device is provided, comprising: a first motor 10, the first motor 10 having an output shaft 101, the output shaft 101 of the first motor 10 having a gear; a first transmission shaft 20, the first end and the second end of the first transmission shaft 20 both having gears, the gear at the first end of the first transmission shaft 20 meshing with the gear at the output shaft 101 of the first motor 10, so that the output shaft 101 of the first motor 10 drives the first transmission shaft 20 to rotate; a first differential 30, the first differential 30 including an input shaft, a first output shaft 302 and a second output shaft 303, the input shaft 301 of the first differential 30 having a gear, the gear at the input shaft 301 of the first differential 30 meshing with the gear at the second end of the first transmission shaft 20, so that the first transmission shaft 20 drives the input shaft 301 of the first differential 30 to rotate; and a first wheel 40, the first wheel 40 meshing with the first output shaft 302 and the first output shaft 201. The first end of 02 is fixedly connected; the second wheel 41 is fixedly connected to the second drive shaft 21. The first end of the second drive shaft 21 is fixedly connected to the first end of the second output shaft 303 through an electromagnetic clutch 50. The electromagnetic clutch 50 is used to control the connection or disconnection of the second drive shaft 21 and the second output shaft 303. When the second drive shaft 21 and the second output shaft 303 are connected, the second output shaft 303 drives the second drive shaft 21 to rotate. When the second drive shaft 21 and the second output shaft 303 are disconnected, there is a speed difference between the first output shaft 302 and the second output shaft 303. Only the first output shaft 302 rotates, and the input shaft 301 and the second output shaft 303 of the first differential 30 do not rotate. They will not drive the output shaft 101 of the first motor 10 to rotate. In this case, no back electromotive force is generated, thereby reducing energy loss.

[0059] In one embodiment, such as Figure 2 As shown, the first differential 30 further includes:

[0060] The drive gear 304 meshes with a gear at the end of the input shaft 301 of the first differential 30 away from the first transmission shaft 20. The surface of the drive gear 304 is provided with at least one fixing member 3041. The shaft of the drive gear 304 is provided with a first through hole. The input shaft 301 of the first differential 30 drives the drive gear 304 to rotate.

[0061] At least one planetary gear 305, each of the at least one planetary gear 305 being rotatably connected to a different one of the at least one fixing member 3041, the axis of each planetary gear 305 being perpendicular to the axis of the driving gear 304;

[0062] The first output shaft 302 is provided with a gear at its second end. After passing through the first through hole, the second end of the first output shaft 302 meshes with each planetary gear 305, so that the driving gear 304 drives the first output shaft 302 to rotate through each planetary gear 305.

[0063] The second end of the second output shaft 303 is provided with a gear, which meshes with each planetary gear 305 so that the driving gear 304 drives the second output shaft 303 to rotate through each planetary gear 305.

[0064] The aforementioned drive gear 304 meshes with the gear on the input shaft 301 of the first differential 30, driving the drive gear 304 to rotate via the input shaft 301 of the first differential 30. At least one fixing member 3041 is provided on the surface of the drive gear 304, and each fixing member 3041 corresponds to a planetary gear 305. The planetary gear 305 is fixed to one side of the drive gear 304 by a fixing bracket. The fixing member 3041 can be as follows: Figure 2 The diagram shows a long strip structure with mounting holes. The shaft of the drive gear 304 has a first through hole for the output shaft to pass through. In this embodiment of the invention, the first output shaft 302 meshes with the planetary gear 305 through the first through hole.

[0065] The aforementioned planetary gear 305 is used to realize the differential rotation function of the first differential 30. Since the planetary gear 305 is rotatably connected to the fixed member 3041, when there is a speed difference between the first output shaft 302 and the second output shaft 303, the output shaft with the higher speed drives the planetary gear 305 to rotate, thereby realizing differential motion. However, when the speeds of the first output shaft 302 and the second output shaft 303 are the same, the planetary gear 305 cannot rotate, but instead drives the drive gear 304 to rotate through the fixed member 3041, which in turn causes the output shaft 101 of the first motor 10 to rotate, generating a back electromotive force. Therefore, in this embodiment of the invention, by rotating the planetary gear 305 of the first differential 30 and disconnecting the connection between the second output shaft 303 and the second transmission shaft 21 by the electromagnetic clutch 50, the rotation of the first output shaft 302 can only drive the planetary gear 305 to rotate, while the drive gear 304 does not rotate, thereby preventing the output shaft 101 of the first motor 10 from rotating.

[0066] Since planetary gear 305 needs to mesh with both the first output shaft 302 and the second output shaft 303 simultaneously, in order for both the first output shaft 302 and the second output shaft 303 to drive planetary gear 305 to rotate, the axis of each planetary gear 305 is perpendicular to the axis of the driving gear 304. This makes the meshing of planetary gear 305 with the first end of the first output shaft 302 the same as the meshing of planetary gear 305 with the first end of the second output shaft 303, thus enabling both the first output shaft 302 and the second output shaft 303 to drive planetary gear 305 to rotate.

[0067] In this embodiment of the invention, the first differential 30 further includes: a drive gear 304, which meshes with a gear at the end of the input shaft 301 of the first differential 30 away from the first transmission shaft 20; the surface of the drive gear 304 is provided with at least one fixing member 3041; the shaft of the drive gear 304 is provided with a first through hole; and the input shaft 301 of the first differential 30 drives the drive gear 304 to rotate; and at least one planetary gear 305, each of the at least one planetary gear 305 being rotatably connected to a different fixing member 3041 among the at least one fixing member 3041; and the axis of each planetary gear 305 being perpendicular to the axis of the drive gear 304. In this way, when there is a speed difference between the first output shaft 302 and the second output shaft 303, the output shaft with the larger speed drives the planetary gear 305 to rotate, thereby realizing differential motion. Combined with the electromagnetic clutch 50 controlling the connection and disconnection of the second output shaft 303 and the second transmission shaft 21, the second output shaft 303 does not rotate in two-drive mode, the input shaft 301 of the first differential 30 does not rotate, and thus the first motor 10 does not generate back electromotive force.

[0068] In one embodiment, such as Figure 3 The first differential 30 shown also includes:

[0069] A first housing 60, wherein the first housing 60 is provided with a first accommodating cavity, a second through hole, and a third through hole, wherein...

[0070] The drive gear 304 and each planetary gear 305 are located in the first accommodating cavity, and the drive gear 304 is rotatably connected to the inner wall of the first housing 60.

[0071] The first output shaft 302 passes through the first through hole and the second through hole in sequence and is fixedly connected to the first wheel 40. The second output shaft 303 is fixedly connected to the electromagnetic clutch 50 through the third through hole.

[0072] In this embodiment of the invention, the first housing 60 is used to isolate the external environment so that the drive gear 304, planetary gear 305, gear at the first end of the first output shaft 302, gear at the first end of the second output shaft 303, and gear at the input shaft 301 of the first differential 30 are not contaminated by dust.

[0073] Furthermore, a lubricant may be provided in the first accommodating cavity to lubricate the drive gear 304, planetary gear 305, gear at the first end of the first output shaft 302, gear at the first end of the second output shaft 303, and gear at the input shaft 301 of the first differential 30.

[0074] In one embodiment, the axis of the first wheel 40, the axis of the second wheel 41, the axis of the second through hole, the axis of the second through hole, the axis of the second output shaft 303, and the axis of the second transmission shaft 21 coincide.

[0075] During vehicle operation, it is necessary to maintain stable forward movement. The axes of the first wheel 40 and the second wheel 41 are aligned. The first wheel 40 is connected to the first output shaft 302, and the second wheel 41 is connected to the second drive shaft 21. The second drive shaft 21 is connected to the second output shaft 303 via an electromagnetic clutch 50. Therefore, in this embodiment of the invention, the axes of the first wheel 40, the second wheel 41, the second through hole, the second output shaft 303, and the second drive shaft 21 are aligned, so that the first wheel 40, the first output shaft 302, the second output shaft 303, the second drive shaft 21, and the second wheel 41 remain on the same axis during forward movement, reducing vehicle vibration.

[0076] In one embodiment, a controller is further included, the controller being electrically connected to the electromagnetic clutch 50, wherein...

[0077] Upon receiving an instruction to switch to four-wheel drive mode, the controller controls the connection between the first end of the second drive shaft 21 and the first end of the second output shaft 303 via the electromagnetic clutch 50, so that the motor drives the first output shaft 302 and the second output shaft 303 to rotate via the input shaft 301 of the first drive shaft 20 and the first differential 30.

[0078] Upon receiving an instruction to switch to two-wheel drive mode, the controller controls the first end of the second drive shaft 21 to disconnect from the first end of the second output shaft 303 via the electromagnetic clutch 50, so that while the first output shaft 302 rotates, the second output shaft 303 and the input shaft of the differential do not rotate.

[0079] The controller described above is a controller capable of receiving and executing instructions, including controlling the electromagnetic clutch 50 to close when receiving an instruction to switch to four-wheel drive mode, thereby connecting the second output shaft 303 and the second drive shaft 21, and controlling the electromagnetic clutch 50 to disengage when receiving an instruction to switch to two-wheel drive mode, thereby disconnecting the second output shaft 303 and the second drive shaft 21.

[0080] Furthermore, the first end of the second output shaft 303 is provided with a gear, and the first end of the second transmission shaft 21 is provided with a gear. When the electromagnetic clutch 50 controls the first end of the second transmission shaft 21 to connect with the first end of the second output shaft 303, the gear at the first end of the second output shaft 303 and the gear at the first end of the second transmission shaft 21 mesh, so that the second output shaft 303 drives the second transmission shaft 21 to rotate.

[0081] In this embodiment of the invention, the transmission between the second output shaft 303 and the second transmission shaft 21 is achieved by gear meshing, and the electromagnetic clutch 50 controls whether the gears of the second output shaft 303 and the second transmission shaft 21 mesh, so as to realize the connection or disconnection of the second output shaft 303 and the second transmission shaft 21.

[0082] In one embodiment, it also includes:

[0083] The second housing 70 is provided with a second accommodating cavity, a fourth through hole, a fifth through hole, and a sixth through hole, wherein...

[0084] The first drive shaft 20, the first differential 30 and the electromagnetic clutch 50 are located in the second accommodating cavity. The gear of the output shaft 101 of the first motor 10 meshes with the gear at the first end of the first drive shaft 20 through the fourth through hole. The first output shaft 302 is connected to the first wheel 40 through the fifth through hole. The first end of the second drive shaft 21 is connected to the electromagnetic clutch 50 through the sixth through hole.

[0085] The aforementioned second housing 70 is used to isolate dust from the external environment, so that the first drive shaft 20, the first differential 30 and the electromagnetic clutch 50 located in the second accommodating cavity are not affected by dust during operation, thereby extending the service life of the equipment.

[0086] Furthermore, the fourth through hole may be provided with a bearing adapted to the output shaft of the first motor 10, the fifth through hole may be provided with a bearing adapted to the first output shaft 302, and / or the sixth through hole may be provided with a bearing adapted to the second transmission shaft 21, thereby reducing resistance while isolating dust from the external environment.

[0087] In one embodiment, such as Figure 4 As shown, the drive unit also includes:

[0088] The second motor 11 has an output shaft, and one end of the first motor 10 has a gear.

[0089] The third drive shaft 22 is provided with gears at both its first and second ends. The gear at the first end of the third drive shaft 22 meshes with the gear on the output shaft 111 of the second motor 11, so that the output shaft 111 of the second motor 11 drives the third drive shaft 22 to rotate.

[0090] The second differential 31 includes an input shaft, a third output shaft 312 and a fourth output shaft 313. The input shaft 311 of the second differential 31 is provided with a gear. The gear of the input shaft 311 of the second differential 31 meshes with the gear at the second end of the third transmission shaft 22 so that the third transmission shaft 22 drives the input shaft 311 of the second differential 31 to rotate.

[0091] The third wheel 42 is fixedly connected to the first end of the third output shaft 312;

[0092] The fourth wheel 43 is fixedly connected to the first end of the fourth output shaft 313.

[0093] The aforementioned second motor 11 is a motor that operates in both four-wheel drive and two-wheel drive modes, and is used to provide kinetic energy to the wheels. The second motor 11 is equipped with an output shaft, which drives the front or rear wheels of the vehicle to rotate.

[0094] The aforementioned third drive shaft 22 is used to connect the second differential 31 and the second motor 11, realizing the transmission between the second motor 11, the third drive shaft 22, and the input shaft 311 of the second differential 31 through gear meshing. Specifically, the output shaft 111 of the second motor 11 is equipped with a gear, and the first end of the third drive shaft 22 is equipped with a gear. The gear on the output shaft 111 of the second motor 11 and the gear on the first end of the third drive shaft 22 are adapted to each other. Through the meshing of the gear on the output shaft 111 of the second motor 11 and the gear on the first end of the third drive shaft 22, the third drive shaft 22 is driven to rotate. Similarly, the second end of the third drive shaft 22 is equipped with a gear, and the input shaft 311 of the second differential 31 is equipped with a gear. The gear on the second end of the third drive shaft 22 and the gear on the input shaft 311 of the second differential 31 are adapted to each other. Through the meshing of the gear on the second end of the third drive shaft 22 and the gear on the input shaft 311 of the second differential 31, the third drive shaft 22 drives the input shaft 311 of the second differential to rotate.

[0095] The aforementioned second differential 31 is used to control the rotation of the third output shaft 312 and the fourth output shaft 313. When the second motor 11 rotates, the input shaft 311 of the second differential 31 drives the third output shaft 312 and the fourth output shaft 313 to rotate. By setting the first differential 30, differential rotation of the first wheel 40 and the second wheel 41 under different speed conditions is achieved.

[0096] In this embodiment of the invention, the driving device further includes: a second motor 11, which has an output shaft, and a gear at one end of the first motor 10; a third transmission shaft 22, which has gears at both its first and second ends, the gear at the first end of the third transmission shaft 22 meshing with the gear at the output shaft 111 of the second motor 11, so that the output shaft 111 of the second motor 11 drives the third transmission shaft 22 to rotate; a second differential 31, which includes an input shaft, a third output shaft 312 and a fourth output shaft 313, the input shaft 311 of the second differential 31 having a gear, the gear at the input shaft 311 of the second differential 31 meshing with the gear at the second end of the third transmission shaft 22, so that the third transmission shaft 22 drives the input shaft 311 of the second differential 31 to rotate; a third wheel 42, which is fixedly connected to the first end of the third output shaft 312; and a fourth wheel 43, which is fixedly connected to the first end of the fourth output shaft 313. In this way, the second motor 11 continuously provides kinetic energy, enabling the wheels to drive normally in both four-wheel drive and two-wheel drive modes.

[0097] In one embodiment, it also includes:

[0098] The third housing 71 is provided with a third accommodating cavity, a seventh through hole, an eighth through hole, and a ninth through hole, wherein...

[0099] The third drive shaft 22 and the second differential 31 are located in the third accommodating cavity. The gear of the output shaft 111 of the second motor 11 meshes with the gear at the first end of the third drive shaft 22 through the seventh through hole. The third output shaft 312 is connected to the third wheel 42 through the eighth through hole. The fourth output shaft 313 is connected to the fourth wheel 43 through the ninth through hole.

[0100] The aforementioned third housing 71 is used to isolate dust from the external environment, so that the third drive shaft 22 and the second differential 31 located in the third accommodating cavity are not affected by dust during operation, thereby extending the service life of the equipment.

[0101] Furthermore, the seventh through hole may be provided with a bearing adapted to the output shaft of the second motor 11, the eighth through hole may be provided with a bearing adapted to the third output shaft 312, and / or the ninth through hole may be provided with a bearing adapted to the fourth drive shaft, thereby reducing resistance while isolating dust from the external environment.

[0102] This invention also provides a vehicle including the aforementioned drive device.

[0103] It should be noted that the implementation method of the above-described drive device embodiment is also applicable to the embodiment of the vehicle and can achieve the same technical effect, so it will not be described again here.

[0104] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0105] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of the present invention.

Claims

1. A driving device, characterized in that, include: A first motor, the first motor having an output shaft, the output shaft of the first motor having a gear; A first drive shaft has gears at both its first and second ends. The gear at the first end of the first drive shaft meshes with the gear on the output shaft of the first motor, so that the output shaft of the first motor drives the first drive shaft to rotate. The first differential includes an input shaft, a first output shaft, and a second output shaft. The input shaft of the first differential is provided with a gear, which meshes with a gear at the second end of the first drive shaft, so that the first drive shaft drives the input shaft of the first differential to rotate. The first wheel is fixedly connected to the first end of the first output shaft; The second wheel is fixedly connected to the second drive shaft. The first end of the second drive shaft is fixedly connected to the first end of the second output shaft via an electromagnetic clutch. The electromagnetic clutch is used to control the connection or disconnection between the second drive shaft and the second output shaft. When the second drive shaft is connected to the second output shaft, the second output shaft drives the second drive shaft to rotate. The first differential also includes: The drive gear meshes with a gear at the end of the input shaft of the first differential away from the first drive shaft. The surface of the drive gear is provided with at least one fixing member, and the shaft of the drive gear is provided with a first through hole. The input shaft of the first differential drives the drive gear to rotate. At least one planetary gear, each of the at least one planetary gear being rotatably connected to a different of the at least one fixing member, the axis of each planetary gear being perpendicular to the axis of the driving gear; The first output shaft has a gear at its second end. After passing through the first through hole, the second end of the first output shaft meshes with each planetary gear, so that the driving gear drives the first output shaft to rotate through each planetary gear. The second output shaft has a gear at its second end, which meshes with each of the planetary gears so that the driving gear drives the second output shaft to rotate through each of the planetary gears.

2. The driving device according to claim 1, characterized in that, The first differential also includes: A first housing, wherein the first housing has a first accommodating cavity, a second through hole, and a third through hole, wherein... The drive gear and each planetary gear are located within the first accommodating cavity, and the drive gear is rotatably connected to the inner wall of the first housing. The first output shaft passes through the first through hole and the second through hole in sequence and is fixedly connected to the first wheel. The second output shaft is fixedly connected to the electromagnetic clutch through the third through hole.

3. The driving device according to claim 2, characterized in that, The axis of the first wheel, the axis of the second wheel, the axis of the second through hole, the axis of the third through hole, the axis of the second output shaft, and the axis of the second transmission shaft coincide.

4. The driving device according to claim 1, characterized in that, It also includes a controller, which is electrically connected to the electromagnetic clutch, wherein, Upon receiving an instruction to switch to four-wheel drive mode, the controller controls the connection between the first end of the second drive shaft and the first end of the second output shaft via the electromagnetic clutch, so that the motor drives the first output shaft and the second output shaft to rotate via the first drive shaft and the input shaft of the first differential. Upon receiving an instruction to switch to two-wheel drive mode, the controller controls the first end of the second drive shaft to disconnect from the first end of the second output shaft via the electromagnetic clutch, so that while the first output shaft rotates, the second output shaft and the input shaft of the differential do not rotate.

5. The driving device according to claim 1, characterized in that, The first end of the second output shaft is provided with a gear, and the first end of the second transmission shaft is provided with a gear. When the electromagnetic clutch controls the first end of the second transmission shaft to connect with the first end of the second output shaft, the gear at the first end of the second output shaft and the gear at the first end of the second transmission shaft mesh, so that the second output shaft drives the second transmission shaft to rotate.

6. The driving device according to claim 1, characterized in that, Also includes: The second housing has a second accommodating cavity, a fourth through hole, a fifth through hole, and a sixth through hole, wherein... The first drive shaft, the first differential, and the electromagnetic clutch are located in the second accommodating cavity. The gear of the output shaft of the first motor meshes with the gear at the first end of the first drive shaft through the fourth through hole. The first output shaft is connected to the first wheel through the fifth through hole. The first end of the second drive shaft is connected to the electromagnetic clutch through the sixth through hole.

7. The driving device according to any one of claims 1 to 6, characterized in that, Also includes: A second motor, the second motor having an output shaft, one end of the output shaft having a gear; The third drive shaft has gears at both its first and second ends. The gear at the first end of the third drive shaft meshes with the gear on the output shaft of the second motor, so that the output shaft of the second motor drives the third drive shaft to rotate. The second differential includes an input shaft, a third output shaft, and a fourth output shaft. The input shaft of the second differential is provided with a gear, which meshes with a gear at the second end of the third drive shaft, so that the third drive shaft drives the input shaft of the second differential to rotate. The third wheel is fixedly connected to the first end of the third output shaft; The fourth wheel is fixedly connected to the first end of the fourth output shaft.

8. The driving device according to claim 7, characterized in that, Also includes: The third housing, wherein the third housing is provided with a third accommodating cavity, a seventh through hole, an eighth through hole, and a ninth through hole, wherein... The third drive shaft and the second differential are located in the third accommodating cavity. The gear of the output shaft of the second motor meshes with the gear at the first end of the third drive shaft through the seventh through hole. The third output shaft is connected to the third wheel through the eighth through hole, and the fourth output shaft is connected to the fourth wheel through the ninth through hole.

9. A vehicle, characterized in that, Includes the drive device as described in any one of claims 1 to 8.

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