Distributed driving device and vehicle

Abstract

The utility model provides a distributed driving device and a vehicle, a first motor and a second motor of the distributed driving device are coaxially arranged, and a first speed reduction assembly and a second speed reduction assembly are respectively arranged on two sides of the first motor and the second motor. A first secondary reduction gear set of a first reduction assembly is arranged on the side, back to a first motor, of a first primary reduction gear set, and a second secondary reduction gear set of a second reduction assembly is arranged on the side, back to a second motor, of a second primary reduction gear set. The shell forms a large space for installing the electric drive controller between the first secondary reduction gear set and the second secondary reduction gear set, and then the electric drive controller with the larger length can be installed.

Description

Technical Field

[0001] The utility model relates to the field of vehicles, and mainly to a distributed drive device and a vehicle. Background Art

[0002] The two drive motors of the existing distributed drive device are arranged in the middle, and the reducers are arranged on both sides. However, when the length of the drive motor controller is large, it can only be installed on the outside of the shell of the distributed drive device, which leads to a large overall volume of the distributed drive device and is not conducive to the layout of the entire vehicle. Utility Model Content

[0003] In view of the above-mentioned deficiencies in the prior art, an object of the present invention is to provide a distributed drive device and a vehicle, so that there is a larger space for installing a controller between the two output shafts of the distributed drive device.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A distributed drive device comprises a first motor, a second motor, a first reduction assembly, a second reduction assembly and a housing, wherein the second motor is coaxially arranged with the first motor; the first reduction assembly is arranged on a side of the first motor facing away from the second motor, the first reduction assembly comprises a first primary reduction gear set and a first secondary reduction gear set, the first primary reduction gear set is connected to the first motor, the first secondary reduction gear set is connected to the first primary reduction gear set, the first output shaft is connected to the first secondary reduction gear set, the first output shaft is used to be connected to an external first wheel end, the first secondary reduction gear set is located on a side of the first primary reduction gear set facing away from the first motor; the second reduction assembly is arranged on a side of the second motor facing away from the first motor, and is symmetrically arranged with the first reduction assembly; the second reduction assembly comprises a second primary reduction gear set A reduction gear set, a second secondary reduction gear set and a second output shaft, the second primary reduction gear set is connected to the second motor, the second secondary reduction gear set is connected to the second primary reduction gear set, the second output shaft is connected to the second secondary reduction gear set, the second output shaft is used to connect to the external second wheel end, the second secondary reduction gear set is located on the side of the second primary reduction gear set facing away from the second motor; the outer casing envelopes the outside of the first motor, the second motor, the first reduction assembly and the second reduction assembly, and the distance between the first secondary reduction gear set and the second secondary reduction gear set is greater than the distance between the first primary reduction gear set and the second primary reduction gear set, and the outer casing forms a space for installing an electric drive controller between the first secondary reduction gear set and the second secondary reduction gear set.

[0006] In some schemes of the present application, the housing includes a motor electronic control housing, the motor electronic control housing includes a motor main body, a first connecting part and a second connecting part, the first end of the motor main body forms a first motor installation cavity for installing the first motor, the second end of the motor main body forms a second motor installation cavity for installing the second motor, and the first motor installation cavity and the second motor installation cavity are coaxially arranged; with the axial direction of the first motor installation cavity as the Y direction, and the radial direction of the first motor installation cavity as the X direction, the first connecting part includes a first connecting end and a second connecting end, the first connecting end is connected to the first end of the motor main body, and the second connecting end is located at an end of the first connecting end away from the motor main body along the X direction; the second connecting part includes a third connecting end and a fourth connecting end, the third connecting end is connected to the second end of the motor main body, and the fourth connecting end is located at an end of the third connecting end away from the motor main body along the X direction; along the Y direction, the distance between the second connecting end and the fourth connecting end is greater than the distance between the first connecting end and the third connecting end.

[0007] In some embodiments of the present application, the first connection end and the second connection end form a step shape; the third connection end and the fourth connection end form a step shape.

[0008] In some schemes of the present application, the housing also includes a controller shell and a controller cover, and the controller shell is arranged between the second connection end and the fourth connection end; the controller cover is fixed to the controller shell, and together with the controller shell, forms a controller installation cavity for installing the controller, and the electric drive controller is installed in the controller installation cavity.

[0009] In some embodiments of the present application, the motor main body, the first connecting part and the second connecting part are integrally formed, and the controller housing is fixed on the first connecting part and the second connecting part; or the controller housing, the motor main body, the first connecting part and the second connecting part are integrally formed.

[0010] In some schemes of the present application, the housing also includes a first end cover shell and a second end cover shell, the first end cover shell is fixedly connected to the motor electronic control shell and is used to cover the first reduction assembly, the first end cover shell includes a first end cover surface and a second end cover surface, the first end cover surface is located on the side of the first secondary reduction gear set facing away from the first motor; the second end cover surface is located at an end of the first end cover surface close to the first motor; the second end cover shell is fixedly connected to the motor electronic control shell and is used to cover the second reduction assembly, the second end cover shell includes a third end cover surface and a fourth end cover surface, the third end cover surface is located on the side of the second secondary reduction gear set facing away from the second motor; the fourth end cover surface is located at an end of the third end cover surface close to the second motor; wherein, the distance between the second end cover surface and the fourth end cover surface is smaller than the distance between the first end cover surface and the third end cover surface.

[0011] In some solutions of the present application, the first end cover surface and the second end cover surface form a step shape;

[0012] The third end cover surface and the fourth end cover surface form a step shape.

[0013] In some schemes of the present application, the housing also includes a first intermediate shell and a first screw. The first intermediate shell is fixed between the first end cover shell and the motor electronic control shell. The first intermediate shell is used to seal the open end of the first motor mounting cavity. The circumferential edge of the first intermediate shell, the circumferential edge of the first end cover shell and the circumferential edge of the motor electronic control shell are in corresponding positions; the first screw passes through the first end cover shell and the first intermediate shell in sequence and is connected to the motor electronic control shell.

[0014] In some schemes of the present application, the first reduction assembly includes a first gear, a second gear, a third gear, a fourth gear, a first input shaft, a first intermediate shaft and the first output shaft. One end of the first input shaft is rotatably connected to the first end cover housing, and the other end passes through the first intermediate housing and is connected to the first motor. The two ends of the first output shaft are rotatably connected to the first end cover housing and the first intermediate housing respectively. The first output shaft is used to be connected to the first wheel end. The two ends of the first intermediate shaft are rotatably connected to the first end cover housing and the first intermediate housing respectively. The first gear is fixed on the first input shaft, the second gear and the third gear are both fixed on the first intermediate shaft, the first gear and the second gear are coplanar and meshed to form the first primary reduction gear set, the fourth gear is connected to the first output shaft, the fourth gear is meshed and coplanar with the third gear to form the first secondary reduction gear set; the first intermediate shaft and the first output shaft are both located on the same side of the first input shaft, and the first intermediate shaft is located between the first input shaft and the first output shaft; with the first intermediate shaft, the first input shaft and the first output shaft as vertices, the connecting lines between the first intermediate shaft, the first input shaft and the first output shaft form an acute triangle.

[0015] In some embodiments of the present application, the first intermediate shaft is located below the first input shaft and the first output shaft; or the first intermediate shaft is located above the first input shaft and the first output shaft.

[0016] In some schemes of the present application, the housing also includes a second intermediate shell and a second screw, the second intermediate shell is fixed between the second end cover shell and the motor electronic control shell, the second intermediate shell is used to seal the open end of the second motor mounting cavity, the circumferential edge of the second intermediate shell, the circumferential edge of the second end cover shell and the circumferential edge of the motor electronic control shell are in corresponding positions; the second screw passes through the second end cover shell and the second intermediate shell in sequence and is connected to the motor electronic control shell.

[0017] In some schemes of the present application, the second reduction assembly includes a fifth gear, a sixth gear, a seventh gear, an eighth gear, a second input shaft, a second intermediate shaft and a second output shaft, one end of the second input shaft is rotatably connected to the second end cover housing, and the other end passes through the second intermediate housing and is connected to the second motor, the two ends of the second output shaft are rotatably connected to the second end cover housing and the second intermediate housing respectively, the second output shaft is used to be connected to the second wheel end, and the two ends of the second intermediate shaft are rotatably connected to the second end cover housing and the second intermediate housing respectively; the fifth gear is fixed on the second input shaft, the sixth gear and the seventh gear are both fixed on the second intermediate shaft, the fifth gear is coplanar and meshed with the sixth gear to form the second first-stage reduction gear set, the eighth gear is connected to the second output shaft, the eighth gear is meshed and coplanar with the seventh gear to form the second second-stage reduction gear set; the second intermediate shaft and the second output shaft are both located on the same side of the second input shaft, and the second intermediate shaft is located between the second input shaft and the second output shaft; with the second intermediate shaft, the second input shaft and the second output shaft as vertices, the second intermediate shaft, the second input shaft and the second output shaft form an acute triangle.

[0018] In some embodiments of the present application, the second intermediate shaft is located below the second input shaft and the second output shaft; or the second intermediate shaft is located above the second input shaft and the second output shaft.

[0019] In some embodiments of the present application, the housing of the first motor and the housing of the second motor are both fixed to the motor electronic control housing, or the housing of the first motor and the housing of the second motor are both integrally formed with the motor electronic control housing.

[0020] A vehicle comprises a vehicle body, a first wheel end, a second wheel end, an electric drive controller and the distributed drive device described in any of the above schemes, wherein the distributed drive device is fixed to the vehicle body, the first wheel end is drivingly connected to the first output shaft of the distributed drive device, the second wheel end is drivingly connected to the second output shaft of the distributed drive device, and the electric drive controller is arranged between the first secondary reduction gear set of the distributed drive device and the second secondary reduction gear set of the distributed drive device.

[0021] Beneficial effect: The first motor and the second motor of the distributed drive device of the present application are coaxially arranged, and the first reduction assembly and the second reduction assembly are respectively arranged on both sides of the first motor and the second motor. By arranging the first two-stage reduction gear group of the first reduction assembly on the side of the first one-stage reduction gear group facing away from the first motor, and arranging the second two-stage reduction gear group of the second reduction assembly on the side of the second one-stage reduction gear group facing away from the second motor, a larger space for installing an electric drive controller is formed between the first two-stage reduction gear group and the second two-stage reduction gear group on the outer casing, thereby being able to install an electric drive controller with a longer length.

[0022] A vehicle comprises the above-mentioned distributed drive device, which enables the installation of an electric drive controller with a longer length. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic cross-sectional structural diagram of a distributed drive device in one embodiment.

[0024] Figure 2 yes Figure 1 The schematic cross-sectional structure diagram of the housing of the distributed drive device is shown.

[0025] Figure 3 It is a schematic cross-sectional structural diagram of a distributed drive device in another embodiment.

[0026] Figure 4 It is a left view schematic diagram of a distributed drive device in an embodiment, in which the first end cover shell and the first intermediate shell are removed.

[0027] Figure 5 It is a left side schematic diagram of a distributed drive device in another embodiment, in which the first end cover shell and the first intermediate shell are removed.

[0028] Main component symbol description: 11-first motor; 12-second motor; 13-electric drive controller; 2-first reduction assembly; 21-first gear; 22-second gear; 23-third gear; 24-fourth gear; 25-first input shaft; 26-first output shaft; 27-first intermediate shaft; 3-second reduction assembly; 31-fifth gear; 32-sixth gear; 33-seventh gear; 34-eighth gear; 35-second input shaft; 36-second output shaft; 37-second intermediate shaft; 4-motor electronic control housing; 41-motor main body; 4 11-first motor installation cavity; 412-second motor installation cavity; 42-first connecting portion; 421-first connecting end; 422-second connecting end; 43-second connecting portion; 431-third connecting end; 432-fourth connecting end; 5-first end cover shell; 51-first end cover surface; 52-second end cover surface; 6-second end cover shell; 61-third end cover surface; 62-fourth end cover surface; 71-first intermediate shell; 72-second intermediate shell; 81-first screw; 82-second screw; 91-controller shell; 92-controller cover. DETAILED DESCRIPTION

[0029] The utility model provides a distributed drive device and a vehicle. In order to make the purpose, technical solution and effect of the utility model clearer and more specific, the utility model is further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the protection scope of the utility model.

[0030] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention 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 cannot be understood as a limitation on the present invention.

[0031] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0032] A vehicle comprises a vehicle body, a first wheel end, a second wheel end, an electric drive controller and a distributed drive device, wherein the distributed drive device is fixed on the vehicle body, the electric drive controller is mounted on the distributed drive device, the distributed drive device comprises a first output shaft and a second output shaft, the first wheel end is transmission-connected to the first output shaft, and the second wheel end is transmission-connected to the second output shaft, so that the power of the distributed drive device can be respectively transmitted to the first wheel end and the second wheel end, thereby driving the vehicle.

[0033] See also Figure 1 and Figure 3 , the distributed drive device includes a first motor 11, a second motor 12, a first reduction assembly 2, a second reduction assembly 3 and a housing (the housing includes a motor electronic control housing 4, a first end cover housing 5, a second end cover housing 6, a first intermediate housing 71 and a second intermediate housing 72). The second motor 12 is coaxially arranged with the first motor 11, and the second motor 12 is symmetrical with the first motor 11. The first reduction assembly 2 connects the first motor 11 and the first wheel end, so that the power of the first motor 11 can be transmitted to the first wheel end through the first reduction assembly 2. Similarly, the second reduction assembly 3 connects the second motor 12 and the second wheel end, so that the power of the second motor 12 can be transmitted to the second wheel end through the second reduction assembly 3. Therefore, the first motor 11, the second motor 12, the first reduction assembly 2, and the second reduction assembly 3 constitute a distributed drive structure.

[0034] The first reduction assembly 2 is arranged on the side of the first motor 11 facing away from the second motor 12, the second reduction assembly 3 is arranged on the side of the second motor 12 facing away from the first motor 11, and is symmetrically arranged with the first reduction assembly 2, and the first motor 11, the second motor 12, the first reduction assembly 2 and the second reduction assembly 3 form a U-shaped structure. The electric drive controller 13 is installed on the circumferential outer side of the first motor 11 and the second motor 12, and is located between the first reduction assembly 2 and the second reduction assembly 3, that is, the free position of the U-shaped structure surrounded by the first motor 11, the second motor 12, the first reduction assembly 2 and the second reduction assembly 3 is used to install the electric drive controller 13, so that the overall structure of the distributed drive device is more compact and the overall size of the distributed drive device is reduced.

[0035] In the embodiment of the present application, the axial direction of the first motor 11 and the second motor 12 is the Y direction, that is, the width direction of the vehicle, the length direction of the first reduction assembly 2 and the second reduction assembly 3 is the X direction, that is, the length direction of the vehicle, and the height direction of the distributed drive device is the Z direction, that is, Figure 1 and Figure 4 The X and Y directions are perpendicular to each other.

[0036] The first reduction assembly 2 includes a first gear 21, a second gear 22, a third gear 23, a fourth gear 24, a first input shaft 25, a first output shaft 26 and a first intermediate shaft 27. The first input shaft 25 is connected to the first motor 11, and the first output shaft 26, the first intermediate shaft 27 and the first input shaft 25 are arranged in parallel. The first gear 21 is fixed on the first input shaft 25, and the second gear 22 and the third gear 23 are both fixed on the first intermediate shaft 27. The first gear 21 is coplanar and meshed with the second gear 22. The fourth gear 24 is connected to the first output shaft 26, and the fourth gear 24 is meshed and coplanar with the third gear 23. The first output shaft 26 is used to connect to the external first wheel end, so that the power of the first motor 11 can be transmitted to the first wheel end through the first input shaft 25, the first gear 21, the second gear 22, the first intermediate shaft 27, the third gear 23, the fourth gear 24 and the first output shaft 26 in sequence.

[0037] The diameter of the first gear 21 is smaller than that of the second gear 22, and the diameter of the third gear 23 is smaller than that of the fourth gear 24, so that the power of the first motor 11 is decelerated when it is transmitted to the first intermediate shaft 27 through the first gear 21 and the second gear 22, and the power is also decelerated when it is transmitted to the first output shaft 26 through the third gear 23 and the fourth gear 24, that is, a first primary reduction gear set of the first reduction assembly 2 is formed between the first gear 21 and the second gear 22, and a first secondary reduction gear set of the first reduction assembly 2 is formed between the third gear 23 and the fourth gear 24, so the first reduction assembly 2 forms a reducer with two-stage reduction.

[0038] Similarly, the second reduction assembly 3 includes a fifth gear 31, a sixth gear 32, a seventh gear 33, an eighth gear 34, a second input shaft 35, a second output shaft 36 and a second intermediate shaft 37. The second input shaft 35 is connected to the second motor 12. The second output shaft 36, the second intermediate shaft 37 and the second input shaft 35 are arranged in parallel. The fifth gear 31 is fixed on the second input shaft 35. The sixth gear 32 and the seventh gear 33 are both fixed on the second intermediate shaft 37. The sixth gear 32 is meshed with the fifth gear 31 and is coplanar. The eighth gear 34 is connected to the second output shaft 36. The eighth gear 34 is coplanar and meshed with the seventh gear 33. The second output shaft 36 is used to be connected to an external second wheel end, so that the power of the second motor 12 is transmitted to the second wheel end through the second input shaft 35, the fifth gear 31, the sixth gear 32, the second intermediate shaft 37, the seventh gear 33, the eighth gear 34 and the second output shaft 36 in sequence.

[0039] The diameter of the fifth gear 31 is smaller than that of the sixth gear 32, and the diameter of the seventh gear 33 is smaller than that of the eighth gear 34, so that the power of the second motor 12 is decelerated when it is transmitted to the second intermediate shaft 37 through the fifth gear 31 and the sixth gear 32, and the power is also decelerated when it is transmitted to the second output shaft 36 through the seventh gear 33 and the eighth gear 34, that is, the second first-stage reduction gear set of the second reduction assembly 3 is formed between the fifth gear 31 and the sixth gear 32, and the second second-stage reduction gear set of the second reduction assembly 3 is formed between the seventh gear 33 and the eighth gear 34, so the second reduction assembly 3 forms a reducer with two-stage reduction.

[0040] In the above, the first input shaft 25, the first gear 21, the second gear 22, the third gear 23, the fourth gear 24, the first output shaft 26 and the first intermediate shaft 27 correspond one to one with the second input shaft 35, the fifth gear 31, the sixth gear 32, the seventh gear 33, the eighth gear 34, the second output shaft 36 and the second intermediate shaft 37 in the Y direction, so that the first reduction assembly 2 and the second reduction assembly 3 form a symmetrical structure.

[0041] The third gear 23 and the fourth gear 24 are located on the side of the second gear 22 facing away from the first motor 11, that is, the first two-stage reduction gear set is arranged on the side of the first one-stage reduction gear set facing away from the first motor 11, and the seventh gear 33 and the eighth gear 34 are located on the side of the sixth gear 32 facing away from the second motor 12, that is, the second two-stage reduction gear set is arranged on the side of the second one-stage reduction gear set facing away from the second motor 12, thereby making a large space between the fourth gear 24 and the eighth gear 34. The housing is enclosed on the outside of the first motor 11, the second motor 12, the first reduction assembly 2 and the second reduction assembly 3, and the distance between the first two-stage reduction gear set and the second two-stage reduction gear set is greater than the distance between the first one-stage reduction gear set and the second one-stage reduction gear set, and the housing forms a space for installing the electric drive controller 13 between the first two-stage reduction gear set and the second two-stage reduction gear set, so that the distributed drive device can install a larger electric drive controller 13.

[0042] See also Figure 1-Figure 3 The housing includes a motor and electronic control housing 4, a first end cover housing 5, and a second end cover housing 6. The first end cover housing 5 is fixed to the first end of the motor and electronic control housing 4 along the Y direction, and the motor and electronic control housing 4 and the first end cover housing 5 form a cavity for installing the first motor 11 and the first reduction assembly 2. Similarly, the second end cover housing 6 is fixed to the second end of the motor and electronic control housing 4 along the Y direction, and the motor and electronic control housing 4 and the second end cover housing 6 form a cavity for installing the second motor 12 and the second reduction assembly 3.

[0043] The first end face of the motor electronic control housing 4 is a plane, and the end face of the first end cover housing 5 close to the motor electronic control housing 4 is also a plane, so that the sealing connection between the first end cover housing 5 and the motor electronic control housing 4 is convenient to prevent the internal lubricating oil or coolant from leaking. The second end face of the motor electronic control housing 4 is a plane, and the end face of the second end cover housing 6 close to the motor electronic control housing 4 is also a plane, so that the sealing connection between the second end cover housing 6 and the motor electronic control housing 4 is convenient to prevent the internal lubricating oil or coolant from leaking. The first end face of the motor electronic control housing 4, the second end face of the motor electronic control housing 4, the end face of the first end cover housing 5 close to the motor electronic control housing 4, and the end face of the second end cover housing 6 close to the motor electronic control housing 4 are set as planes, which also makes the mold structure used for producing the motor electronic control housing 4, the first end cover housing 5 and the second end cover housing 6 simpler and more convenient to produce, and reduces the cost required for producing the motor electronic control housing 4, the first end cover housing 5 and the second end cover housing 6.

[0044] The motor electronic control housing 4 includes a motor body 41, a first connecting portion 42 and a second connecting portion 43. The first end of the motor body 41 forms a first motor mounting cavity 411 for mounting the first motor 11, and the second end of the motor body 41 forms a second motor mounting cavity 412 for mounting the second motor 12. The first motor mounting cavity 411 and the second motor mounting cavity 412 are coaxially arranged. The first motor 11 is installed in the first motor mounting cavity 411, and the second motor 12 is installed in the second motor mounting cavity 412, so that a coaxial arrangement is formed between the first motor 11 and the second motor 12, and the first motor 11 is symmetrical with the second motor 12.

[0045] The first connection portion 42 is disposed at the first end of the motor body 41 and extends radially (in the X direction) of the first motor mounting cavity 411. The first connection portion 42 includes a first connection end 421 and a second connection end 422. The first connection end 421 is connected to the first end of the motor body 41, and the second connection end 422 is located at an end of the first connection end 421 away from the motor body 41 along the X direction. Along the Y direction, the first connection end 421 is located on a side of the first primary reduction gear set close to the first motor 11, that is, the first connection end 421 is located on a side of the first gear 21 and the second gear 22 close to the first motor 11, and the second connection end 422 is located on a side of the fourth gear 24 close to the first motor 11. Figure 1 and Figure 2 In the illustrated embodiment, the first motor installation cavity 411 extends along the Y direction and passes through the first connection end 421 , so that the first motor 11 can be installed in the first motor installation cavity 411 from the first connection end 421 .

[0046] The first connection end 421 and the second connection end 422 form a step shape, the first connection end 421 is located at the inner side of the first gear 21 and the second gear 22 along the Y direction, and the second connection end 422 is located at the inner side of the fourth gear 24 along the Y direction and connected to the first connection end 421. Along the Y direction, the distance between the second connection end 422 and the first motor 11 is greater than the distance between the first connection end 421 and the first motor 11.

[0047] Similarly, the second connection portion 43 is disposed at the second end of the motor body 41 and extends radially (in the X direction) of the second motor mounting cavity 412. The second connection portion 43 includes a third connection end 431 and a fourth connection end 432. The third connection end 431 is connected to the second end of the motor body 41, and the fourth connection end 432 is located at an end of the third connection end 431 away from the motor body 41 along the X direction. Along the Y direction, the third connection end 431 is located on the side of the second first-stage reduction gear set close to the second motor 12, that is, the third connection end 431 is located on the side of the fifth gear 31 and the sixth gear 32 close to the second motor 12, and the fourth connection end 432 is located on the side of the eighth gear 34 close to the second motor 12. Figure 1 and Figure 2 In the illustrated embodiment, the second motor installation cavity 412 extends along the Y direction and passes through the third connection end 431 , so that the second motor 12 can be installed in the second motor installation cavity 412 from the third connection end 431 .

[0048] The third connection end 431 and the fourth connection end 432 form a step shape, the third connection end 431 is located on the inner side of the fifth gear 31 and the sixth gear 32 along the Y direction, and the fourth connection end 432 is located on the inner side of the eighth gear 34 along the Y direction and connected to the third connection end 431. Along the Y direction, the distance between the fourth connection end 432 and the second motor 12 is greater than the distance between the third connection end 431 and the second motor 12.

[0049] In the above, since the secondary reduction gear set of the first reduction assembly 2 and the second reduction assembly 3 is arranged farther away from the motor than the primary reduction gear set along the Y direction, the housing near the secondary reduction gear set can be arranged closer to the outside in the Y direction, that is, in the Y direction, since the first secondary reduction gear set is arranged farther away from the first motor 11 than the first primary reduction gear set, and the second secondary reduction gear set is arranged farther away from the second motor 12 than the second primary reduction gear set, the second connection end 422 and the fourth connection end 432 have a larger spacing in the Y direction, forming a larger accommodation space. When the electric drive controller 13 is arranged at a position between the second connection end 422 and the fourth connection end 432, a larger size of the electric drive controller 13 can be accommodated.

[0050] In other embodiments, the side of the first connection portion 42 away from the motor main body 41 is inclined toward the outside of the Y direction (the side facing away from the first motor 11), and the side of the second connection portion 43 away from the motor main body 41 is inclined toward the outside of the Y direction (the side facing away from the second motor 12), so that the distance between the second connection end 422 and the fourth connection end 432 is greater than the distance between the first connection end 421 and the third connection end 431.

[0051] The first end cover housing 5 is fixedly connected to the first connection part 42 (i.e., the first end of the motor electronic control housing 4), and a cavity for installing the first reduction assembly 2 is formed between the first end cover housing 5 and the first connection part 42, and the first reduction assembly 2 is installed in the cavity surrounded by the first end cover housing 5 and the first connection part 42. In other words, the first end cover housing 5 is enclosed on the outside of the first reduction assembly 2, and the edge of the first end cover housing 5 is connected to the edge of the first connection part 42, and a space capable of accommodating the first reduction assembly 2 is formed between the middle of the first end cover housing 5 and the first connection part 42.

[0052] The first end cover housing 5 includes a first end cover surface 51 and a second end cover surface 52. In the X direction, the first end cover surface 51 is arranged on a side of the second end cover surface 52 away from the first motor 11. In the Y direction, the first end cover surface 51 is located on a side of the first secondary reduction gear set away from the first motor 11. Since in the Y direction, the first secondary reduction gear set is arranged farther away from the first motor 11 than the first primary reduction gear set, the distance between the first end cover surface 51 and the first motor 11 is greater than the distance between the second end cover surface 52 and the first motor 11.

[0053] In detail, along the Y direction, the first end cover surface 51 is located on the side of the third gear 23 and the fourth gear 24 facing away from the first motor 11, and the second end cover surface 52 is located on the side of the first gear 21 facing away from the first motor 11. Since the first gear 21 and the second gear 22 are located on the side of the third gear 23 close to the first motor 11, and the second end cover surface 52 is arranged close to the first gear 21, the distance between the second end cover surface 52 and the first motor 11 can be set smaller than the distance between the first end cover surface 51 and the first motor 11.

[0054] In one embodiment, the first end cover surface 51 and the second end cover surface 52 form a step shape, and along the Y direction, the distance between the second end cover surface 52 and the first motor 11 is smaller than the distance between the first end cover surface 51 and the first motor 11 .

[0055] Similarly, the second end cover housing 6 is fixedly connected to the second connection part 43 (i.e., the second end of the motor electronic control housing 4), and a cavity for installing the second reduction assembly 3 is formed between the second end cover housing 6 and the second connection part 43, and the second reduction assembly 3 is installed in the cavity surrounded by the second end cover housing 6 and the second connection part 43. In other words, the second end cover housing 6 is enclosed on the outside of the second reduction assembly 3, and the edge of the second end cover housing 6 is connected to the edge of the second connection part 43, and a space capable of accommodating the second reduction assembly 3 is formed between the middle part of the second end cover housing 6 and the second connection part 43.

[0056] The second end cover housing 6 includes a third end cover surface 61 and a fourth end cover surface 62. Along the X direction, the third end cover surface 61 is arranged on a side of the fourth end cover surface 62 away from the second motor 12. Along the Y direction, the third end cover surface 61 is located on a side of the first secondary reduction gear set away from the second motor 12. Since along the Y direction, the second secondary reduction gear set is arranged farther away from the second motor 12 than the second primary reduction gear set, the distance between the third end cover surface 61 and the second motor 12 is greater than the distance between the fourth end cover surface 62 and the second motor 12.

[0057] In detail, along the Y direction, the fourth end cover surface 62 is located at an end of the third end cover surface 61 close to the second motor 12. That is, the third end cover surface 61 is located on the side of the seventh gear 33 and the eighth gear 34 facing away from the second motor 12, and the fourth end cover surface 62 is located on the side of the fifth gear 31 facing away from the second motor 12. Since the fifth gear 31 and the sixth gear 32 are located on the side of the seventh gear 33 close to the second motor 12, and the fourth end cover surface 62 is arranged close to the fifth gear 31, the distance between the fourth end cover surface 62 and the motor body 41 can be set smaller than the distance between the third end cover surface 61 and the motor body 41.

[0058] In one embodiment, the third end cover surface 61 and the fourth end cover surface 62 form a step shape, and along the Y direction, the distance between the fourth end cover surface 62 and the second motor 12 is smaller than the distance between the third end cover surface 61 and the second motor 12 .

[0059] Since the secondary reduction gear groups of the first reduction assembly 2 and the second reduction gear group 3 are arranged farther away from the motor along the Y direction than the primary reduction gear group, the housing close to the secondary reduction gear group can be arranged closer to the outside in the Y direction, that is, in the Y direction, since the first secondary reduction gear group is arranged farther away from the first motor 11 than the first primary reduction gear group, and the second secondary reduction gear group is arranged farther away from the second motor 12 than the second primary reduction gear group, the second connecting end 422 and the fourth connecting end 432 have a larger spacing in the Y direction, thereby forming a larger accommodating space.

[0060] In the above, along the Y direction, the distance between the second end cover surface 52 and the first motor 11 is set to be smaller than the distance between the first end cover surface 51 and the first motor 11, and the distance between the fourth end cover surface 62 and the second motor 12 is set to be smaller than the distance between the third end cover surface 61 and the second motor 12, so that the distance between the second end cover surface 52 and the fourth end cover surface 62 is smaller, avoiding interference with the longitudinal beam of the vehicle when the distributed drive device is installed. When the distributed drive device is installed on a compact vehicle, due to the small space in the width direction of the chassis of the vehicle body, the distributed drive device of the present application reduces the distance between the second end cover surface 52 of the first end cover housing 5 and the fourth end cover surface 62 of the second end cover housing 6, so that the distributed drive device can be installed in the narrow space of the compact vehicle.

[0061] In one embodiment, the motor body 41 , the first connection portion 42 and the second connection portion 43 are integrally formed, so that the overall structure of the motor electronic control housing 4 is simpler.

[0062] See also Figure 1 , Figure 4 and Figure 5 In one embodiment, the housing further includes a first intermediate housing 71 and a first screw 81. The first intermediate housing 71 is fixed between the first end cover housing 5 and the motor electronic control housing 4. The first end of the first intermediate housing 71 along the X direction is used to block the open end of the first motor installation cavity 411, so that the internal cavity between the first end cover housing 5 and the motor electronic control housing 4 is divided by the first intermediate housing 71 into two parts for installing the first motor 11 and the first reduction assembly 2. The second end of the first intermediate housing 71 along the X direction cooperates with the outer side of the second end of the first connecting portion 42. The position of the first intermediate housing 71 for connecting with the first end cover housing 5 and the first connecting portion 42 is a plane, so that the sealing connection between the first intermediate housing 71 and the first end cover housing 5 and between the first intermediate housing 71 and the motor electronic control housing 4 is convenient.

[0063] The circumferential edge of the first end cover housing 5 and the circumferential edge of the first intermediate housing 71 correspond to the circumferential edge of the motor and electronic control housing 4, that is, the circumferential edge of the first end cover housing 5 and the circumferential edge of the first intermediate housing 71 are coplanar with the circumferential edge of the motor and electronic control housing 4, so that the first screw 81 passes through the first end cover housing 5 and the first intermediate housing 71 in sequence and is connected to the motor and electronic control housing 4, so that the first end cover housing 5 and the first intermediate housing 71 can be fixed to the motor and electronic control housing 4, reducing the number of screws required to fix the first end cover housing 5 and the first intermediate housing 71, and reducing the number of screw holes set on the motor and electronic control housing 4 for fixing the first intermediate housing 71 and the first end cover housing 5, thereby making the structure of the distributed drive device simpler and the production cost lower. In other words, the first end cover housing 5, the first intermediate housing 71 and the motor and electronic control housing 4 correspond to each other in the edge position, so that the first end cover housing 5 and the first intermediate housing 71 can be fixed to the motor and electronic control housing 4 at the same time by using one screw. The first screws 81 are arranged on the circumferential edge of the first end cover housing 5 , the circumferential edge of the first intermediate housing 71 and the circumferential edge of the motor and electronic control housing 4 , and therefore will not affect the installation of the first reduction assembly 2 and the first motor 11 .

[0064] Similarly, the housing also includes a second intermediate housing 72 and a second screw 82. The second intermediate housing 72 is fixed between the second end cover housing 6 and the motor electronic control housing 4. The first end of the second intermediate housing 72 along the X direction is used to block the open end of the second motor installation cavity 412, so that the internal cavity between the second end cover housing 6 and the motor electronic control housing 4 is divided by the second intermediate housing 72 into two parts for installing the second motor 12 and the second reduction assembly 3. The second end of the second intermediate housing 72 along the X direction cooperates with the outer side of the second end of the second connecting portion 43, and the second end of the second intermediate housing 72 along the X direction is used to connect with the fourth gear 24. Among them, the position of the second intermediate housing 72 for connecting with the second end cover housing 6 and the second connecting portion 43 is a plane, which facilitates the sealing connection between the second intermediate housing 72 and the second end cover housing 6 and between the second intermediate housing 72 and the motor electronic control housing 4.

[0065] The circumferential edges of the second end cover housing 6 and the second intermediate housing 72 correspond to the circumferential edges of the motor and electronic control housing 4, that is, the circumferential edges of the second end cover housing 6 and the second intermediate housing 72 are coplanar with the circumferential edges of the motor and electronic control housing 4, so that the second screw 82 passes through the second end cover housing 6 and the second intermediate housing 72 in sequence and is connected to the motor and electronic control housing 4, so that the second end cover housing 6 and the second intermediate housing 72 can be fixed to the motor and electronic control housing 4, reducing the number of screws required for fixing the second end cover housing 6 and the second intermediate housing 72, and reducing the number of screw holes provided on the motor and electronic control housing 4 for fixing the second intermediate housing 72 and the second end cover housing 6, thereby making the structure of the distributed drive device simpler and the production cost lower. In other words, the second end cover housing 6, the second intermediate housing 72 and the motor and electronic control housing 4 correspond to each other at the edge position, so that the second end cover housing 6 and the second intermediate housing 72 can be fixed to the motor and electronic control housing 4 at the same time by using one screw. The second screws 82 are arranged on the circumferential edge of the second end cover housing 6 , the circumferential edge of the second intermediate housing 72 and the circumferential edge of the motor and electronic control housing 4 , and therefore will not affect the installation of the second reduction assembly 3 and the second motor 12 .

[0066] In the above, the circumferential edges of the three housings, namely, the first end cover housing 5, the first intermediate housing 71 and the motor and electronic control housing 4, are coplanar, which can also reduce the radial envelope size of the electric drive device. That is, when the three housings are coplanar and installed, the mounting bolts (i.e., the first screws 81) only occupy one circle of space. If the three housings are not coplanar, which is equivalent to staggered installation, then the first intermediate housing 71 and the motor and electronic control housing 4 require one circle of mounting bolts, and the first end cover housing 5 and the motor and electronic control housing 4 also require one circle of mounting bolts, that is, the size of one more circle of mounting bolts, and the installation width of one circle of bolts is 20mm-24mm.

[0067] Similarly, the circumferential edges of the second end cover housing 6, the second intermediate housing 72 and the motor electronic control housing 4 are coplanar, which can also reduce the radial envelope size of the electric drive device. That is, when the three housings are coplanar and installed, the mounting bolts (i.e., the second screws 82) only occupy one circle of space. If the three housings are not coplanar, which is equivalent to staggered installation, the second intermediate housing 72 and the motor electronic control housing 4 need one circle of mounting bolts, and the second end cover housing 6 and the motor electronic control housing 4 also need one circle of mounting bolts, that is, the size of one more circle of mounting bolts, and the installation width of one circle of bolts is 20mm-24mm.

[0068] See also Figure 4 and Figure 5In one embodiment, the first intermediate shaft 27, the first input shaft 25 and the first output shaft 26 are used as vertices, and the connecting lines between the first intermediate shaft 27, the first input shaft 25 and the first output shaft 26 form an acute triangle, thereby reducing the length of the distributed drive device along the X direction, and making full use of the height of the first motor 11 to arrange the first reduction assembly 2, making the structure more compact. Figure 1 In the embodiment shown, the first intermediate shaft 27 and the first output shaft 26 are both located on the same side of the first input shaft 25, and the first intermediate shaft 27 is located between the first input shaft 25 and the first output shaft 26. The first intermediate shaft 27 is located below the first input shaft 25 and the first output shaft 26 (e.g. Figure 4 or the first intermediate shaft 27 is located above the first input shaft 25 and the first output shaft 26 (as shown); Figure 5 In this embodiment, preferably, the diameter of the second gear 22 is larger than the diameter of the first gear 21 and smaller than the diameter of the fourth gear 24, and the diameter of the third gear 23 is smaller than the diameters of the second gear 22 and the fourth gear 24, so that the height of the distributed drive device can be reduced.

[0069] In other embodiments, the first intermediate shaft 27 , the first input shaft 25 , and the first output shaft 26 may be disposed on the same plane, and the diameters of the second gear 22 and the fourth gear 24 may not be limited.

[0070] Similarly, the second reduction assembly 3 also includes a second input shaft 35, one end of the second input shaft 35 is rotatably connected to the second end cover housing 6, and the other end passes through the second intermediate housing 72 and is connected to the second motor 12, one end of the second output shaft 36 is rotatably connected to the second intermediate housing 72, and the other end is rotatably connected to the second end cover housing 6, and the second output shaft 36 is used to connect to the second wheel end; the fifth gear 31 is fixed on the second input shaft 35, and the eighth gear 34 is fixed on the second output shaft 36.

[0071] In one embodiment, the second intermediate shaft 37, the second input shaft 35 and the second output shaft 36 are used as vertices to form an acute triangle, thereby reducing the length of the distributed drive device along the X direction, and making full use of the height of the first motor 11 to arrange the first reduction assembly 2, making the structure more compact. Figure 1 In the embodiment shown, the second intermediate shaft 37 and the second output shaft 36 are both located on the same side of the second input shaft 35, and the second intermediate shaft 37 is located between the second input shaft 35 and the second output shaft 36. The second intermediate shaft 37 is located below the second input shaft 35 and the second output shaft 36 (as shown in FIG. Figure 4 or the second intermediate shaft 37 is located above the second input shaft 35 and the second output shaft 36 (as shown); Figure 5In this embodiment, preferably, the diameter of the sixth gear 32 is larger than the diameter of the fifth gear 31 and smaller than the diameter of the eighth gear 34, and the diameter of the seventh gear 33 is smaller than the diameters of the sixth gear 32 and the eighth gear 34, so that the height of the distributed drive device can be reduced.

[0072] In other embodiments, the second intermediate shaft 37 , the second input shaft 35 , and the second output shaft 36 may be disposed on the same plane, and the diameters of the sixth gear 32 and the eighth gear 34 may not be limited.

[0073] When assembling the above-mentioned distributed drive device, the first motor 11 is installed in the first motor installation cavity 411, and then the first intermediate housing 71 is covered, and then the first input shaft 25, the first gear 21, the first intermediate shaft 27, the second gear 22, the third gear 23, the first output shaft 26 and the fourth gear 24 are installed. Finally, the first end cover housing 5 is covered, and the first screw 81 is passed through the first end cover housing 5 and the first intermediate housing 71 in sequence to be fixedly connected to the motor electronic control housing 4. Similarly, the second motor 12 is installed in the second motor installation cavity 412, and then the second intermediate housing 72 is covered, and then the second input shaft 35, the fifth gear 31, the second intermediate shaft 37, the sixth gear 32, the seventh gear 33, the second output shaft 36 and the eighth gear 34 are installed. Finally, the second end cover housing 6 is covered, and the second screw 82 is passed through the second end cover housing 6 and the second intermediate housing 72 in sequence to be fixedly connected to the motor electronic control housing 4.

[0074] In the above, since the second gear 22 and the third gear 23 are both fixedly connected to the first intermediate shaft 27, the second gear 22 and the third gear 23 have the same angular velocity. The diameter of the second gear 22 of the present application is smaller than the diameter of the third gear 23, so that when the first reduction assembly 2 has the same transmission ratio between the first gear 21 and the fourth gear 24, the diameter of the fourth gear 24 can be reduced, thereby reducing the size of the distributed drive device in the Z direction, that is, reducing the size of the distributed drive device in the vehicle height direction.

[0075] Similarly, since the sixth gear 32 and the seventh gear 33 are both fixedly connected to the second intermediate shaft 37, the sixth gear 32 and the seventh gear 33 have the same angular velocity. The diameter of the sixth gear 32 of the present application is smaller than the diameter of the seventh gear 33, so that when the second reduction assembly 3 has the same transmission ratio between the fifth gear 31 and the eighth gear 34, the diameter of the eighth gear 34 can be reduced, thereby reducing the size of the distributed drive device in the Z direction, that is, reducing the size of the distributed drive device in the vehicle height direction.

[0076] exist Figure 1 and Figure 3In the illustrated embodiment, the diameter of the third gear 23 is equal to or close to the diameter of the first gear 21, and the diameter of the second gear 22 is equal to or slightly smaller than the diameter of the fourth gear 24, that is, the transmission ratio between the first gear 21 and the second gear 22 is similar to the transmission ratio between the third gear 23 and the fourth gear 24, thereby fully utilizing the size of the distributed drive device in the Z direction, and there is no interference between the fourth gear 24 and the first intermediate shaft 27.

[0077] The diameter of the seventh gear 33 is equal to or close to the diameter of the fifth gear 31, and the diameter of the sixth gear 32 is equal to or slightly smaller than the diameter of the eighth gear 34, that is, the transmission ratio between the fifth gear 31 and the sixth gear 32 is similar to the transmission ratio between the seventh gear 33 and the eighth gear 34, thereby making full use of the size of the distributed drive device in the Z direction, and there is no interference between the eighth gear 34 and the second intermediate shaft 37.

[0078] The fourth gear 24 is located on the outside of the second gear 22, and the eighth gear 34 is located on the outside of the sixth gear 32, so that the distance between the fourth gear 24 and the eighth gear 34 is greater than the distance between the second gear 22 and the sixth gear 32, and thus the distance between the second connection end 422 and the fourth connection end 432 is greater than the distance between the first connection end 421 and the third connection end 431, that is, a larger space for installing the electric drive controller 13 is formed between the second connection end 422 and the fourth connection end 432.

[0079] In one embodiment, the housing of the first motor 11 is fixed to the motor electronic control housing 4, so as to realize a fixed connection between the first motor 11 and the motor electronic control housing 4. The housing of the second motor 12 is fixed to the motor electronic control housing 4, so as to realize a fixed connection between the second motor 12 and the motor electronic control housing 4.

[0080] In another embodiment, the housing of the first motor 11 is integrally formed with the motor electronic control housing 4, thereby reducing the space occupied by the housing of the first motor 11, thereby reducing the height of the distributed drive device and the length along the X direction. The housing of the second motor 12 is integrally formed with the motor electronic control housing 4, thereby reducing the space occupied by the housing of the second motor 12, thereby reducing the height of the distributed drive device and the length along the X direction.

[0081] In a preferred embodiment of the present application, the first motor 11 and the second motor 12 are both arranged in the motor and electronic control housing 4 by bolt connection or shrink fit. The first input shaft 25 is connected to the output shaft of the first motor 11 by a spline, and the second input shaft 35 is connected to the output shaft of the second motor 12 by a spline.

[0082] The housing also includes a controller housing 91 and a controller cover 92. The controller housing 91 is arranged between the second connection end 422 and the fourth connection end 432. The controller cover 92 is fixed on the controller housing 91 and together with the controller housing 91 forms a controller installation cavity for installing the electric drive controller 13. The electric drive controller 13 is installed in the controller installation cavity.

[0083] exist Figure 1 In the embodiment shown, the controller housing 91 is integrally formed with the motor electronic control housing 4, which facilitates production and reduces the space occupied by the controller housing 91, thereby increasing the space for installing the electric drive controller 13. Figure 3 In the illustrated embodiment, the controller housing 91 may be fixed between the first connection portion 42 and the second connection portion 43 by means of connectors such as screws or buckles.

[0084] The distributed drive device in any of the above embodiments may further include an engine, and the engine is connected to the first motor 11 or the second motor 12 in a transmission manner to form a hybrid power system, that is, the engine can output power together with the first motor or the second motor. The distributed drive device may further include an engine and a generator, the engine drives the generator to generate electricity, and the electricity generated by the generator is used to operate the first motor 11 and the second motor 12 to form an extended-range power system.

[0085] It is understandable that those skilled in the art can make equivalent substitutions or changes based on the technical solution and the utility model concept of the utility model, and all these changes or substitutions should fall within the protection scope of the utility model.

Claims

1. A distributed drive device, characterized in that: include: a first motor and a second motor, wherein the second motor is coaxially arranged with the first motor; A first reduction assembly is arranged on a side of the first motor facing away from the second motor, the first reduction assembly comprises a first primary reduction gear set, a first secondary reduction gear set and a first output shaft, the first primary reduction gear set is connected to the first motor, the first secondary reduction gear set is connected to the first primary reduction gear set, the first output shaft is connected to the first secondary reduction gear set, the first output shaft is used to be connected to an external first wheel end, and the first secondary reduction gear set is located on a side of the first primary reduction gear set facing away from the first motor; A second reduction assembly is arranged on a side of the second motor facing away from the first motor, and is symmetrically arranged with the first reduction assembly; the second reduction assembly includes a second primary reduction gear set, a second secondary reduction gear set and a second output shaft, the second primary reduction gear set is connected to the second motor, the second secondary reduction gear set is connected to the second primary reduction gear set, the second output shaft is connected to the second secondary reduction gear set, the second output shaft is used to be connected to an external second wheel end, and the second secondary reduction gear set is located on a side of the second primary reduction gear set facing away from the second motor; The housing envelops the outside of the first motor, the second motor, the first reduction assembly and the second reduction assembly, and the distance between the housing and the first secondary reduction gear set is greater than the distance between the housing and the first primary reduction gear set and the second primary reduction gear set, and the housing forms a space for installing an electric drive controller between the first secondary reduction gear set and the second secondary reduction gear set.

2. The distributed drive device according to claim 1, characterized in that: The housing comprises: The motor electronic control housing comprises a motor main body, a first connecting part and a second connecting part, wherein a first motor installation cavity for installing the first motor is formed at a first end of the motor main body, and a second motor installation cavity for installing the second motor is formed at a second end of the motor main body, and the first motor installation cavity and the second motor installation cavity are coaxially arranged; The axial direction of the first motor installation cavity is taken as the Y direction, and the radial direction of the first motor installation cavity is taken as the X direction, the first connection portion includes a first connection end and a second connection end, the first connection end is connected to the first end of the motor main body, and the second connection end is located at an end of the first connection end away from the motor main body along the X direction; The second connection portion includes a third connection end and a fourth connection end, the third connection end is connected to the second end of the motor body, and the fourth connection end is located at an end of the third connection end away from the motor body along the X direction; Along the Y direction, the distance between the second connection end and the fourth connection end is greater than the distance between the first connection end and the third connection end.

3. The distributed drive device according to claim 2, characterized in that: The first connection end and the second connection end form a step shape; The third connection end and the fourth connection end form a step shape.

4. The distributed drive device according to claim 3, characterized in that: The housing also includes: A controller housing, arranged between the second connection end and the fourth connection end; The controller cover is fixed on the controller housing and forms a controller installation cavity for installing the controller together with the controller housing. The electric drive controller is installed in the controller installation cavity.

5. The distributed drive device according to claim 4, characterized in that: The motor body, the first connection part and the second connection part are integrally formed, and the controller housing is fixed on the first connection part and the second connection part; or The controller housing, the motor main body, the first connecting portion, and the second connecting portion are integrally formed.

6. The distributed drive device according to any one of claims 2 to 5, characterized in that: The housing also includes: A first end cover housing is fixedly connected to the motor electronic control housing and is used to cover the first reduction assembly. The first end cover housing includes a first end cover surface and a second end cover surface. The first end cover surface is located at a side of the first secondary reduction gear set away from the first motor along the Y direction, and the second end cover surface is located at an end of the first end cover surface close to the first motor along the X direction; A second end cover housing is fixedly connected to the motor electronic control housing and is used to cover the second reduction assembly. The second end cover housing includes a third end cover surface and a fourth end cover surface. The third end cover surface is located on the side of the second secondary reduction gear set away from the second motor along the Y direction, and the fourth end cover surface is located on the end of the third end cover surface close to the second motor along the X direction; Wherein, the distance between the second end cover surface and the fourth end cover surface is smaller than the distance between the first end cover surface and the third end cover surface.

7. The distributed drive device according to claim 6, characterized in that: The first end cover surface and the second end cover surface form a step shape; The third end cover surface and the fourth end cover surface form a step shape.

8. The distributed drive device according to claim 6, characterized in that: The housing also includes: A first intermediate housing is fixed between the first end cover housing and the motor electronic control housing, the first intermediate housing is used to block the open end of the first motor installation cavity, and the circumferential edge of the first intermediate housing, the circumferential edge of the first end cover housing and the circumferential edge of the motor electronic control housing are in corresponding positions; The first screw passes through the first end cover housing and the first intermediate housing in sequence and is connected to the motor electronic control housing.

9. The distributed drive device according to claim 8, characterized in that: The first reduction assembly includes a first gear, a second gear, a third gear, a fourth gear, a first input shaft, a first intermediate shaft and the first output shaft, one end of the first input shaft is rotatably connected to the first end cover housing, the other end passes through the first intermediate housing and is connected to the first motor, both ends of the first output shaft are rotatably connected to the first end cover housing and the first intermediate housing respectively, the first output shaft is used to connect to the first wheel end, and both ends of the first intermediate shaft are rotatably connected to the first end cover housing and the first intermediate housing respectively; The first gear is fixed on the first input shaft, the second gear and the third gear are both fixed on the first intermediate shaft, the first gear is coplanar and meshed with the second gear to form the first primary reduction gear set, the fourth gear is connected to the first output shaft, the fourth gear is meshed and coplanar with the third gear to form the first secondary reduction gear set; The first intermediate shaft and the first output shaft are both located on the same side of the first input shaft, and the first intermediate shaft is located between the first input shaft and the first output shaft; With the first intermediate shaft, the first input shaft and the first output shaft as vertices, lines connecting the first intermediate shaft, the first input shaft and the first output shaft form an acute triangle.

10. The distributed drive device according to claim 9, characterized in that: The first intermediate shaft is located below the first input shaft and the first output shaft; or The first intermediate shaft is located above the first input shaft and the first output shaft.

11. The distributed drive device according to claim 6, characterized in that: The housing also includes: A second intermediate housing is fixed between the second end cover housing and the motor and electronic control housing, the second intermediate housing is used to block the open end of the second motor installation cavity, and the circumferential edge of the second intermediate housing, the circumferential edge of the second end cover housing and the circumferential edge of the motor and electronic control housing are in corresponding positions; The second screw passes through the second end cover housing and the second intermediate housing in sequence and is connected to the motor electronic control housing.

12. The distributed drive device according to claim 11, characterized in that: The second reduction assembly includes a fifth gear, a sixth gear, a seventh gear, an eighth gear, a second input shaft, a second intermediate shaft and a second output shaft, one end of the second input shaft is rotatably connected to the second end cover housing, the other end passes through the second intermediate housing and is connected to the second motor, both ends of the second output shaft are rotatably connected to the second end cover housing and the second intermediate housing respectively, the second output shaft is used to connect to the second wheel end, and both ends of the second intermediate shaft are rotatably connected to the second end cover housing and the second intermediate housing respectively; The fifth gear is fixed on the second input shaft, the sixth gear and the seventh gear are both fixed on the second intermediate shaft, the fifth gear is coplanar and meshed with the sixth gear to form the second primary reduction gear set, the eighth gear is connected to the second output shaft, the eighth gear is meshed and coplanar with the seventh gear to form the second secondary reduction gear set; The second intermediate shaft and the second output shaft are both located on the same side of the second input shaft, and the second intermediate shaft is located between the second input shaft and the second output shaft; With the second intermediate shaft, the second input shaft and the second output shaft as vertices, the second intermediate shaft, the second input shaft and the second output shaft form an acute triangle.

13. The distributed drive device according to claim 12, characterized in that: The second intermediate shaft is located below the second input shaft and the second output shaft; or The second intermediate shaft is located above the second input shaft and the second output shaft.

14. The distributed drive device according to any one of claims 2 to 5, characterized in that: The housing of the first motor and the housing of the second motor are both fixed to the motor electronic control housing; or The housing of the first motor and the housing of the second motor are both integrally formed with the motor electronic control housing.

15. A vehicle, characterized in that: It includes a vehicle body, a first wheel end, a second wheel end, an electric drive controller and a distributed drive device as described in any one of claims 1 to 14, wherein the distributed drive device is fixed to the vehicle body, the first wheel end is drivingly connected to the first output shaft of the distributed drive device, the second wheel end is drivingly connected to the second output shaft of the distributed drive device, and the electric drive controller is arranged between the first secondary reduction gear set of the distributed drive device and the second secondary reduction gear set of the distributed drive device.

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