Powertrain housing, powertrain, and vehicle

Abstract

The application discloses a power assembly box, a power assembly and a vehicle, the power assembly box comprises an intermediate box piece, a first containing cavity is arranged in the intermediate box piece, the first containing cavity extends in an inclined direction relative to a horizontal plane, so that a first space is formed above a front part of the intermediate box piece, and a second space is formed below a rear part of the intermediate box piece; in the application, the first space and the second space can be used as spaces for avoiding other components by the power assembly, so that the power assembly does not occupy too much space in the vertical direction and the front-rear direction, the power assembly is fully avoided from other components, and therefore the space utilization of the overall layout design of the vehicle is improved.

Description

Technical Field

[0001] This invention relates to the field of vehicle manufacturing technology, and in particular to a powertrain housing, a powertrain having the powertrain housing, and a vehicle having the powertrain. Background Technology

[0002] A powertrain is a combination of components in a vehicle that generates and transmits power; simply put, it consists of two mechanisms: providing power and transmitting power. In related technologies, to avoid interference between the powertrain and the vehicle's system functional components, a relatively large space is usually required to house the powertrain. This directly leads to low space utilization in the vehicle and is detrimental to the overall vehicle layout. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of existing technologies where the powertrain occupies a large space, resulting in low space utilization of the vehicle and being unfavorable for the overall vehicle layout. This invention provides a powertrain housing that can fully avoid interference with other components, thereby improving the space utilization of the overall vehicle layout design.

[0004] To achieve the above objectives, the present invention provides a powertrain housing, including an intermediate housing component;

[0005] The intermediate housing component has a first accommodating cavity that extends in an inclined direction relative to the horizontal plane, thereby forming a first space above the front part of the intermediate housing component and a second space below the rear part of the intermediate housing component.

[0006] Optionally, the top front end of the intermediate box component extends downward to form a first front sidewall, and the upper front end of the intermediate box component extends backward to form an upper sidewall. The first space is located in front of the first front sidewall and above the upper sidewall.

[0007] The bottom rear end of the intermediate box component extends upward to form a first rear sidewall, and the lower rear end of the intermediate box component extends forward to form a lower sidewall. The second space is located behind the first rear sidewall and below the lower sidewall.

[0008] Optionally, the top of the intermediate housing component is formed as a first planar segment, and / or

[0009] The bottom of the intermediate box component is formed as a second planar segment.

[0010] Optionally, a mounting base is provided on the first planar segment for mounting electrical controls.

[0011] Optionally, the upper sidewall is configured as an arcuate structure protruding away from the first accommodating cavity; and / or

[0012] The lower sidewall is configured as an arc-shaped structure that protrudes away from the first accommodating cavity.

[0013] Optionally, the first front sidewall and the upper sidewall are connected by a first arc-shaped segment, the first arc-shaped segment being recessed into the interior of the first accommodating cavity; and / or

[0014] The first rear sidewall and the lower sidewall are connected by a second arc-shaped segment, which is configured to be recessed into the interior of the first accommodating cavity.

[0015] Optionally, the upper front end of the intermediate housing component extends downward to the bottom front end to form a second front sidewall;

[0016] The lower rear end of the intermediate housing component extends upward to the top rear end to form a second rear sidewall.

[0017] Optionally, side housings are detachably installed on both sides of the intermediate housing, each side housing including a motor housing and a gearbox end cover extending radially outward along the motor housing, wherein the motor housing has a second accommodating cavity for installing a drive motor.

[0018] Optionally, a motor end cover is detachably mounted on the end of the motor housing away from the intermediate housing component.

[0019] Optionally, a reinforcing rib is provided between the motor housing and the gearbox end cover.

[0020] Optionally, the intermediate housing is provided with a mounting part, which has a first positioning hole that mates with the power input shaft and a second positioning hole that mates with the power output shaft. The angle between the line connecting the axes of the power input shaft and the power output shaft and the horizontal plane is 20°-60°.

[0021] Optionally, the mounting part is further provided with a third positioning hole, which is configured to cooperate with the intermediate shaft between the power input shaft and the power output shaft.

[0022] A second aspect of the present invention provides a powertrain comprising:

[0023] The aforementioned powertrain housing; and

[0024] The transmission and drive motor are housed within the powertrain housing.

[0025] Optionally, the powertrain includes a plurality of system functional components, at least a portion of at least one of the system functional components being disposed in the first space, and / or at least a portion of at least one of the system functional components being disposed in the second space.

[0026] Optionally, the powertrain includes a first power assembly and a second power assembly, wherein the first power assembly is configured to drive the left wheel and the second power assembly is configured to drive the right wheel.

[0027] The system functional component includes a locking mechanism disposed between the first power component and the second power component. The locking mechanism is configured to connect the first power component and the second power component for selective synchronization, and at least a portion of the locking mechanism is located in the first space.

[0028] Optionally, the system functional component includes an oil pump, at least a portion of which is located in the second space.

[0029] A third aspect of the present invention provides a vehicle including the powertrain described above.

[0030] Optionally, the vehicle further includes an engine assembly, at least a portion of which is located in the first space.

[0031] Optionally, the vehicle further includes a frame assembly including a first crossbeam extending laterally, at least a portion of which is located in the second space.

[0032] Optionally, the frame assembly further includes a second crossbeam extending laterally, and the front of the intermediate housing component is connected to the second crossbeam via a suspension.

[0033] Optionally, the frame assembly further includes a third crossbeam extending laterally, and two side boxes are detachably mounted on both sides of the intermediate box member, with the rear of the two side boxes connected to the third crossbeam via a suspension.

[0034] Through the above technical solution, the first space and the second space can serve as spaces for the powertrain to avoid other components, ensuring that the powertrain does not occupy too much space in the vertical and longitudinal directions, thus achieving full avoidance of the powertrain from other components and improving the space utilization rate of the overall vehicle layout design. Attached Figure Description

[0035] Figure 1 This is a structural schematic diagram of a powertrain housing provided by the present invention;

[0036] Figure 2 yes Figure 1 Exploded view of the powertrain housing;

[0037] Figure 3 yes Figure 1 Side view of the middle box component;

[0038] Figure 4This is a schematic diagram of a powertrain housing located within a vehicle body mounting cavity, as provided by the present invention.

[0039] Figure 5 yes Figure 4 A bottom view of the powertrain housing located within the vehicle body mounting cavity;

[0040] Figure 6 yes Figure 4 Side view of the powertrain housing located within the vehicle body mounting cavity;

[0041] Figure 7 This is a schematic diagram of the structure of a power transmission system provided by the present invention.

[0042] Explanation of reference numerals in the attached figures

[0043] 100. Intermediate housing component; 101. First space; 102. Second space; 103. First front sidewall; 1031. First arc-shaped segment; 104. Upper sidewall; 1041. Second front sidewall; 105. First rear sidewall; 1051. Second arc-shaped segment; 106. Lower sidewall; 1061. Second rear sidewall; 107. First planar segment; 108. Second planar segment; 110. First accommodating cavity; 120. Mounting part; 121. First positioning hole; 122. Second positioning hole; 123. Third positioning hole; 110. First accommodating cavity; 130. Mounting base; 200. Side housing component; 210. Motor housing; 211. Second accommodating cavity; 220. Gearbox end cover; 230. Reinforcing rib; 300. Motor end cover; 400. First power assembly; 410. First drive motor; 411. Motor output shaft; 420. First gearbox; 421. Power input shaft; 422. Intermediate shaft; 423. Power output shaft; 500. Second power assembly; 510. Second drive motor; 520. Second gearbox; 600. Locking mechanism; 700. Engine assembly; 800. Longitudinal beam; 810. First crossbeam; 820. Second crossbeam; 830. Third crossbeam; 1a. First-stage drive gear; 1b. First-stage driven gear; 2a. Second-stage drive gear; 2b. Second-stage driven gear. Detailed Implementation

[0044] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0045] In the following text, the X-axis corresponds to the front-to-back direction of the powertrain housing, the Y-axis corresponds to the left-to-right direction of the powertrain housing, and the Z-axis corresponds to the up-to-down direction of the powertrain housing. The X-axis and Y-axis can define the horizontal plane.

[0046] As mentioned above, in combination Figure 1 , 2As shown, the present invention provides a powertrain housing, the powertrain housing including an intermediate housing component 100, wherein a first accommodating cavity 110 is provided in the intermediate housing component 100, the first accommodating cavity 110 extends in an inclined direction relative to the horizontal plane, such that a first space 101 is formed above the front part of the intermediate housing component 100, and a second space 102 is formed below the rear part of the intermediate housing component 100.

[0047] In this invention, by setting the first accommodating cavity 110 within the intermediate housing 100 for accommodating at least part of the transmission mechanism and the power output shaft to extend in an inclined direction relative to the horizontal plane, a first space 101 is formed above the front of the intermediate housing 100, and a second space 102 is formed below the rear of the intermediate housing 100. The first space 101 and the second space 102 can serve as spaces for the powertrain to avoid other components, ensuring that the powertrain does not occupy too much space in the vertical and longitudinal directions, achieving sufficient avoidance of the powertrain from other components, thereby improving the space utilization rate of the overall vehicle layout design.

[0048] In this invention, through the ingenious design of the powertrain housing structure, a first space 101 is formed above the front of the intermediate housing component 100, and a second space 102 is formed below the rear of the intermediate housing component 100. The first space 101 and the second space 102 achieve clever avoidance of the powertrain from other components, facilitating the compact arrangement of components within the vehicle body mounting cavity, thereby improving the space utilization rate of the overall vehicle layout design. As a specific embodiment of the first space 101 and the second space 102, combined with... Figure 3 As shown, the top front end of the intermediate box component 100 extends downward to form a first front sidewall 103, and the upper front end of the intermediate box component 100 extends backward to form an upper sidewall 104. The first space 101 is located in front of the first front sidewall 103 and above the upper sidewall 104. The bottom rear end of the intermediate box component 100 extends upward to form a first rear sidewall 105, and the lower rear end of the intermediate box component 100 extends forward to form a lower sidewall 106. The second space 102 is located behind the first rear sidewall 105 and below the lower sidewall 106.

[0049] In some embodiments, the top of the intermediate housing 100 is formed as a first planar segment 107. The structure of the first planar segment 107 facilitates the formation of a large space on the top surface within the first accommodating cavity 110 to accommodate components such as the power input shaft.

[0050] Furthermore, a mounting base 130 is provided on the first planar segment 107 for mounting the electrical control unit. The structural design of the first planar segment 107 facilitates the installation of the mounting base 130 for mounting the electrical control unit. The mounting base 130 can be any suitable form; for example, the mounting base 130 may have multiple threaded holes for bolts to pass through and fix the electrical control unit to the top of the intermediate housing 100.

[0051] In some embodiments, the bottom of the intermediate housing 100 is formed as a second planar segment 108. The structure of the second planar segment 108 forms a structurally stable bottom surface; in addition, since the bottom of the intermediate housing 100 is set as the second planar segment 108, a larger bottom surface is formed in the first accommodating cavity 110, which is convenient for accommodating the power output shaft of the transmission and its gears, oil pump and other components.

[0052] In some embodiments, the upper sidewall 104 is configured as an arc-shaped structure protruding away from the first accommodating cavity 110. This arc-shaped structure is designed to accommodate the circular shape of the power output shaft gear, thereby providing a larger first space 101 for avoiding interference with the installation of components within the first accommodating cavity 110, allowing for clearance from other components. Similarly, the lower sidewall 106 is configured as an arc-shaped structure protruding away from the first accommodating cavity 110. This provides a larger second space 102 for avoiding interference with the installation of components within the corresponding position of the first accommodating cavity 110, allowing for clearance from other components.

[0053] In some embodiments, the first front sidewall 103 and the upper sidewall 104 are connected by a first arc-shaped segment 1031, which is recessed into the first accommodating cavity 110. By providing the first arc-shaped segment 1031, a larger first space 101 is ensured, and the structural design of the first arc-shaped segment 1031 also improves the structural strength of the intermediate housing component 100. It is understood that the first rear sidewall 105 and the lower sidewall 106 are connected by a second arc-shaped segment 1051, which is recessed into the first accommodating cavity 110. Thus, by providing the second arc-shaped segment 1051, a larger second space 102 is ensured, and the structural design of the second arc-shaped segment 1051 also improves the structural strength of the intermediate housing component 100.

[0054] In some embodiments, the upper front end of the intermediate housing 100 extends downward to the lower front end to form a second front sidewall 1041; the lower rear end of the intermediate housing 100 extends upward to the upper rear end to form a second rear sidewall 1061. The structural design of the second front sidewall 1041 and the second rear sidewall 1061 provides sufficient space within the first accommodating cavity 110 for mounting the transmission mechanism. Furthermore, the second front sidewall 1041 serves as a mounting surface for the powertrain housing and the vehicle frame assembly, facilitating powertrain installation; the second rear sidewall 1061 serves as a mounting surface for system functional components, for example, a recess is formed in the second rear sidewall 1061 for mounting an oil cooler.

[0055] In some embodiments, side housings 200 are detachably mounted on both sides of the intermediate housing 100. The side housing 200 includes a motor housing 210 and a gearbox end cover 220 extending radially outward along the motor housing 210. The motor housing 210 has a second accommodating cavity 211 for mounting a drive motor.

[0056] Furthermore, in some embodiments, a motor end cover 300 is detachably mounted on the end of the motor housing 210 away from the intermediate housing 100. During assembly, the second accommodating cavity 211 can be open to both sides, thereby facilitating the installation of the drive motor; in addition, by setting the motor housing 210 and the gearbox end cover 220 as an integral structure, after the gearbox gear mechanism is installed in the first accommodating cavity 110 of the intermediate housing 100, the integral structure of the motor housing 210 and the gearbox end cover 220 can be assembled to one end of the intermediate housing 100, which is simple and convenient.

[0057] In some embodiments, to improve the strength of the integral structure formed by the motor housing 210 and the transmission end cover 220, a reinforcing rib 230 is provided between the motor housing 210 and the transmission end cover 220. The reinforcing rib 230 can be any suitable form; for example, the reinforcing rib 230 extends axially along the motor housing 210 to the transmission end cover 220, and extends circumferentially on the transmission end cover 220 and again extends axially to the motor housing 210.

[0058] In this invention, the intermediate housing 100 is provided with a mounting portion 120. The mounting portion 120 has a first positioning hole 121 that mates with the power input shaft 421 and a second positioning hole 122 that mates with the power output shaft 423. The angle between the line connecting the axes of the power input shaft 421 and the power output shaft 423 and the horizontal plane is 20°-60°. By adjusting the positions of the power input shaft 421 and the power output shaft 423, specifically setting the angle between the line connecting the axes of the power input shaft 421 and the power output shaft 423 and the horizontal plane to 20°-60°, the first space 101 can be formed above the front of the intermediate housing 100, and the second space 102 can be formed below the rear of the intermediate housing 100, so that the powertrain housing can fully avoid other components within the vehicle body mounting cavity.

[0059] Furthermore, in this invention, the mounting part 120 is also provided with a third positioning hole 123, which is configured to cooperate with the intermediate shaft 422 between the power input shaft 421 and the power output shaft 423.

[0060] A second aspect of the present invention provides a powertrain comprising the aforementioned powertrain housing and a transmission and a drive motor housed within the powertrain housing.

[0061] In some embodiments, the powertrain includes a plurality of system functional components, at least a portion of at least one of the system functional components being disposed in the first space 101, and / or at least a portion of at least one of the system functional components being disposed in the second space 102.

[0062] By arranging at least a portion of at least one of the multiple system functional components constituting the powertrain in the first space 101 and / or the second space 102, the compactness of the powertrain is further improved, thereby making full use of the vehicle's space.

[0063] In some embodiments, the powertrain includes a first power component 400 and a second power component 500, the first power component 400 being configured to drive the left wheel and the second power component 500 being configured to drive the right wheel; the system functional component includes a locking mechanism 600 disposed between the first power component 400 and the second power component 500, the locking mechanism 600 being configured to connect the first power component 400 and the second power component 500 for selective synchronization, and at least a portion of the locking mechanism 600 being located in the first space 101.

[0064] Understandably, the powertrain can be used to drive the front wheels of a vehicle, in which case the vehicle is a front-wheel drive vehicle.

[0065] In other embodiments, the powertrain can be used to drive the rear wheels of a vehicle, in which case the vehicle is a rear-wheel drive vehicle.

[0066] Optionally, by providing two powertrains, with one powertrain driving the front wheels of the vehicle and the other powertrain driving the rear wheels of the vehicle, the vehicle is a four-wheel drive vehicle.

[0067] Combination Figure 7 As shown, taking the powertrain driving the front wheels of the vehicle as an example, the first power assembly 400 is configured to drive the left front wheel W1, and the second power assembly 500 is configured to drive the right front wheel W2.

[0068] The first power assembly 400 includes a first drive motor 410 and a first transmission 420, and the second power assembly 500 includes a second drive motor 510 and a second transmission 520, so that each wheel can be driven individually, that is, each wheel corresponds to a drive motor and a transmission connected to the drive motor.

[0069] Both the first transmission 420 and the second transmission 520 are two-stage reducers. By using two-stage reducers, the speed of the drive motor is reduced to increase torque.

[0070] Specifically, the first transmission 420 and the second transmission 520 respectively include a power input shaft 421, an intermediate shaft 422 and a power output shaft 423; a first-stage drive gear 1a is provided on the power input shaft 421, and the power input shaft 421 is connected to the motor output shaft 411 of the drive motor on the corresponding side to obtain power.

[0071] The intermediate shaft 422 is equipped with a primary driven gear 1b and a secondary driving gear 2a, and the power output shaft 423 is equipped with a secondary driven gear 2b, with the power output shaft 423 connected to the corresponding wheel. The primary driving gear 1a meshes with the primary driven gear 1b, and the secondary driving gear 2a meshes with the secondary driven gear 2b, thereby transmitting the power of the drive motor sequentially through the power input shaft 421, the intermediate shaft 422, and the power output shaft 423 to the corresponding wheel, thus driving the wheel to rotate.

[0072] In this invention, by connecting the first power assembly 400 and the second power assembly 500 through a locking mechanism 600 for selective synchronization, the powertrain has two operating states: an unlocked state and a locked state. When the powertrain is in the locked state, the first power assembly 400 and the second power assembly 500 are synchronized through the locking mechanism 600, thereby causing the wheels driven by the first power assembly 400 and the wheels driven by the second power assembly 500 to rotate synchronously. When the powertrain is in the unlocked state, the first power assembly 400 and the second power assembly 500 are independent of each other.

[0073] When one wheel slips, the locking mechanism 600 synchronizes the first power component 400 and the second power component 500, thereby outputting the power of the power component corresponding to the non-slipping wheel to the slipping wheel through the locking mechanism 600, realizing power drive and helping the vehicle get out of trouble.

[0074] When one power component is damaged or malfunctions, the locking mechanism 600 synchronizes the first power component 400 and the second power component 500, thereby outputting the power of the normally functioning power component to the power component on the other side through the locking mechanism 600 to drive the wheel on that side, achieving power drive and making it more convenient to use.

[0075] In other words, the locking mechanism 600 is used to lock the first power assembly 400 and the second power assembly 500 when one of the two wheels slips or one of the two drive motors is damaged or malfunctions, so that the first power assembly 400 and the second power assembly 500 are synchronized, thereby making the vehicles on both sides rotate synchronously, ensuring the vehicle's ability to get out of trouble, and still enabling the vehicle to drive even when one of the drive motors fails.

[0076] In this invention, the locking mechanism 600 can be any suitable device, and those skilled in the art can make a specific selection based on the size of the vehicle body mounting cavity; details will not be elaborated here. By arranging at least a portion of the locking mechanism 600 within the first space 101, full utilization of the space within the vehicle body mounting cavity is achieved.

[0077] In some embodiments, the system functional component includes an oil pump, at least a portion of which is located in the second space 102. It is understood that the oil pump is a key component of the powertrain, pressurizing and delivering lubricating oil from the bottom of the transmission to the top of the transmission to adequately lubricate the gear train. By locating at least a portion of the oil pump within the second space 102, the space within the vehicle body mounting cavity is fully utilized. It should be noted that the oil pump can be any suitable device, such as an electric pump commonly used in the art.

[0078] A third aspect of the present invention provides a vehicle comprising the powertrain described above.

[0079] In some embodiments, combined with Figure 4 , 6 As shown, the vehicle also includes an engine assembly 700, at least a portion of which is located in the first space 101. That is, the vehicle is a hybrid vehicle. By arranging at least a portion of the engine assembly 700 within the first space 101, a compact arrangement of the powertrain and engine assembly 700 is achieved, making full use of the space within the vehicle body mounting cavity.

[0080] In some embodiments, combined with Figure 5 As shown, the vehicle also includes a frame assembly, which includes a first crossbeam 810 extending laterally, at least a portion of which is located in the second space 102. In this invention, by placing at least a portion of the first crossbeam 810 constituting the frame assembly within the second space 102, the space of the vehicle body mounting cavity is fully utilized, thereby improving space utilization.

[0081] In some embodiments, the frame assembly further includes a second crossbeam 820 extending laterally, and the front portion of the intermediate housing 100 is connected to the second crossbeam 820 via a suspension connection. The second crossbeam 820 facilitates the installation of the intermediate housing 100. It is understood that, to ensure the reliability of powertrain installation, the frame assembly also includes a third crossbeam 830 extending laterally, with two side housings 200 detachably mounted on each side of the intermediate housing 100, and the rear portions of the two side housings 200 connected to the third crossbeam 830 via suspension connections. By connecting the intermediate housing 100 and the two side housings 200 constituting the powertrain housing to the frame assembly via suspension connections, the reliability of powertrain installation is ensured.

[0082] In one specific embodiment of the present invention, combined with Figure 5 As shown, the frame assembly includes two longitudinal beams 800 extending longitudinally and a second crossbeam 820, a first crossbeam 810, and a third crossbeam 830 extending laterally. The two longitudinal beams 800 are spaced apart laterally, and the second crossbeam 820, the first crossbeam 810, and the third crossbeam 830 are spaced apart sequentially in the front-rear direction.

[0083] Wherein, the two ends of the second crossbeam 820, the first crossbeam 810 and the third crossbeam 830 are respectively connected to the two longitudinal beams 800 to form a frame structure for mounting the powertrain; at least a portion of the first crossbeam 810 is located in the second space 102, the front part of the intermediate box 100 is connected to the second crossbeam 820 by suspension, and the rear parts of the two side box 200 are connected to the third crossbeam 830 by suspension.

[0084] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings; however, the present invention is not limited thereto. Within the scope of the inventive concept, various simple modifications can be made to the technical solutions of the present invention. To avoid unnecessary repetition, the present invention will not describe the various possible combinations separately. However, these simple modifications and combinations should also be considered as the content disclosed in the present invention and are all within the protection scope of the present invention.

Claims

1. A vehicle comprising a powertrain and an engine assembly (700), said powertrain including a powertrain housing, a transmission and a drive motor housed within the powertrain housing, and an oil pump, characterized in that, The powertrain housing includes an intermediate housing component (100); The intermediate housing (100) is provided with a first accommodating cavity (110), which extends in an inclined direction relative to the horizontal plane, such that a first space (101) is formed above the front part of the intermediate housing (100), and a second space (102) is formed below the rear part of the intermediate housing (100). At least a portion of the engine assembly (700) is located in the first space (101), and at least a portion of the oil pump is located in the second space (102) for pressurizing and delivering lubricating oil at the bottom of the transmission to the top of the transmission to lubricate the gear mechanism in the transmission.

2. The vehicle according to claim 1, characterized in that, The top front end of the intermediate box (100) extends downward to form a first front sidewall (103), and the upper front end of the intermediate box (100) extends backward to form an upper sidewall (104). The first space (101) is located in front of the first front sidewall (103) and above the upper sidewall (104). The bottom rear end of the intermediate box (100) extends upward to form a first rear sidewall (105), and the lower rear end of the intermediate box (100) extends forward to form a lower sidewall (106). The second space (102) is located behind the first rear sidewall (105) and below the lower sidewall (106).

3. The vehicle according to claim 2, characterized in that, The top of the intermediate housing (100) is formed as a first planar segment (107), and / or The bottom of the intermediate box component (100) is formed as a second planar segment (108).

4. The vehicle according to claim 3, characterized in that, The first planar segment (107) is provided with a mounting base (130) for installing electrical control.

5. The vehicle according to claim 2, characterized in that, The upper sidewall (104) is configured as an arcuate structure protruding away from the first receiving cavity (110); and / or The lower sidewall (106) is configured as an arc-shaped structure that protrudes away from the first accommodating cavity (110).

6. The vehicle according to claim 2, characterized in that, The first front sidewall (103) and the upper sidewall (104) are connected by a first arc-shaped segment (1031), which is configured to be recessed into the interior of the first receiving cavity (110); and / or The first rear sidewall (105) and the lower sidewall (106) are connected by a second arc segment (1051), which is configured to be recessed into the interior of the first accommodating cavity (110).

7. The vehicle according to claim 2, characterized in that, The upper front end of the intermediate box component (100) extends downward to the bottom front end to form a second front sidewall (1041). The lower rear end of the intermediate housing component (100) extends upward to the top rear end to form a second rear sidewall (1061).

8. The vehicle according to claim 1, characterized in that, The middle housing (100) has side housings (200) detachably mounted on both sides. The side housing (200) includes a motor housing (210) and a gearbox end cover (220) extending radially outward along the motor housing (210). The motor housing (210) has a second accommodating cavity (211) for mounting a drive motor.

9. The vehicle according to claim 8, characterized in that, A motor end cap (300) is detachably mounted on the end of the motor housing (210) away from the intermediate housing (100).

10. The vehicle according to claim 8, characterized in that, A reinforcing rib (230) is provided between the motor housing (210) and the gearbox end cover (220).

11. The vehicle according to claim 1, characterized in that, The intermediate housing (100) is provided with a mounting part (120). The mounting part (120) is provided with a first positioning hole (121) that cooperates with the power input shaft (421) and a second positioning hole (122) that cooperates with the power output shaft (423). The angle between the line connecting the axes of the power input shaft (421) and the power output shaft (423) and the horizontal plane is 20°-60°.

12. The vehicle according to claim 11, characterized in that, The mounting part (120) is also provided with a third positioning hole (123), which is configured to cooperate with the intermediate shaft (422) between the power input shaft (421) and the power output shaft (423).

13. The vehicle according to claim 1, characterized in that, The powertrain includes a plurality of system functional components, at least a portion of at least one of the system functional components being disposed in the first space (101), and / or at least a portion of at least one of the system functional components being disposed in the second space (102).

14. The vehicle according to claim 13, characterized in that, The powertrain includes a first power assembly (400) and a second power assembly (500), wherein the first power assembly (400) is configured to drive the left wheel and the second power assembly (500) is configured to drive the right wheel. The system functional component includes a locking mechanism (600) disposed between the first power component (400) and the second power component (500), the locking mechanism (600) being configured to connect the first power component (400) and the second power component (500) for selective synchronization, and at least a portion of the locking mechanism (600) being located in the first space (101).

15. The vehicle according to claim 1, characterized in that, The vehicle also includes a frame assembly including a first crossbeam (810) extending laterally, at least a portion of which is located in the second space (102).

16. The vehicle according to claim 15, characterized in that, The frame assembly also includes a second crossbeam (820) extending laterally, and the front of the intermediate housing (100) is connected to the second crossbeam (820) by a suspension.

17. The vehicle according to claim 15, characterized in that, The frame assembly also includes a third crossbeam (830) extending laterally, and two side boxes (200) are detachably mounted on both sides of the intermediate box (100), with the rear of the two side boxes (200) connected to the third crossbeam (830) via a suspension.

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