Power assembly case, power assembly, and vehicle

Abstract

The present application relates to the field of vehicle driving system, and discloses a power assembly box, a power assembly and a vehicle.The power assembly box comprises a middle box part and two side box parts, the middle box part is provided with an electric control mounting seat, the inside of the electric control mounting seat is provided with a terminal block mounting cavity; the two side box parts are arranged on the two sides of the middle box part, and each side box part comprises a motor shell; wherein the terminal block mounting cavity is located at the part close to the electric control mounting seat of the space defined between the two motor shells.The power assembly comprises the above-mentioned power assembly box.The vehicle comprises the above-mentioned power assembly.The power assembly box provided by the present application supports the motor controller through the middle box part, avoids the problem of poor assembly precision caused by the cooperation tolerance of the cross-box, has high assembly precision, thereby making the installation reliable, and meanwhile utilizes the surplus space between the two motor assemblies to set the terminal block mounting cavity accommodating the terminal block, and has high integration.

Description

Technical Field

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

[0002] The new energy vehicle industry is developing rapidly, and the powertrain, as one of the most important components in new energy vehicles, has higher requirements for reliability, lightweight design, and high space utilization. In particular, the dual-motor powertrain, which integrates two motors, two electronic controls, and two reducers, requires more space than a single-motor system, thus posing new challenges to its space utilization.

[0003] Traditional electric drive assemblies have multiple mounting points for the motor controller, some on the motor end cover and some on the reducer housing. This mounting method, which spans multiple different housings, makes it difficult to guarantee assembly and installation accuracy, and the location of the terminal block is also difficult to determine, making it impossible to effectively optimize the space layout. Summary of the Invention

[0004] In order to solve the above-mentioned technical problems, or at least partially solve the above-mentioned technical problems, the present invention provides a powertrain housing, a powertrain, and a vehicle.

[0005] This invention provides a powertrain housing, comprising:

[0006] An intermediate housing component, wherein the intermediate housing component is provided with an electrical control mounting base for mounting a motor controller, and the electrical control mounting base has a wiring socket mounting cavity for accommodating a wiring socket; and

[0007] Two side housing components are disposed on both sides of the middle housing component, and each side housing component includes a motor housing for mounting a motor assembly;

[0008] The terminal block mounting cavity is located in the portion of the space defined between the two motor housings, near the electrical control mounting base.

[0009] Optionally, the intermediate housing component is provided with a first mounting hole that mates with the motor output shaft of the motor assembly, and the first mounting hole is located directly below the terminal block mounting cavity.

[0010] Optionally, the intermediate housing component is further provided with a third mounting hole that mates with the power output shaft, and the third mounting hole is located on the side of the first mounting hole away from the electronic control mounting base.

[0011] Optionally, the third mounting hole is located below the front side of the first mounting hole.

[0012] Optionally, the intermediate housing component is further provided with a second mounting hole that mates with the intermediate shaft, the second mounting hole being located between the first mounting hole and the third mounting hole.

[0013] Optionally, the electrical control mounting base is provided with a plurality of mounting bases for connecting to the motor controller, the mounting bases protruding laterally from the electrical control mounting base.

[0014] Optionally, the electrical control mounting base includes a first support base and a second support base, the first support base and the second support base are arranged opposite to each other along the front-rear direction of the intermediate housing component, the first support base and the second support base are respectively provided with at least two mounting bases, and the lateral width of the first support base is greater than the lateral width of the second support base.

[0015] Optionally, the first support base is provided with a plurality of reinforcing plates, which are spaced apart in the lateral direction of the intermediate housing component so that the top of the first support base forms a grid structure.

[0016] Optionally, the first support base is provided with a mounting base on each side, and the second support base is provided with a mounting base on each side. The top of the mounting base extends upward so that the electrical control mounting base forms a groove that is recessed towards the interior of the intermediate housing component.

[0017] Optionally, the electrical control mounting base has first wire-passing openings on both sides corresponding to the transverse direction of the intermediate housing component, and the first wire-passing openings are in communication with the terminal block mounting cavity.

[0018] Optionally, the front side of the electrical control mounting base is provided with an assembly opening, which communicates with the terminal block mounting cavity.

[0019] Optionally, the top of the electrical control mounting base is provided with a second wiring opening through which the wires can pass, and the second wiring opening communicates with the mounting cavity of the terminal block.

[0020] Optionally, the terminal block includes a plate for connecting to the intermediate housing component. A plurality of conductive sheets are provided on the plate, each conductive sheet having a corresponding first terminal and a second terminal. The first terminal and the second terminal extend out of the plate, the first terminal being used to connect to the motor controller, and the second terminal being used to connect to the motor assembly.

[0021] Optionally, a wiring board is vertically provided on one side of the plate, the first wiring terminal extends out of the wiring board, and a plurality of spaced wiring grooves are provided on the top surface of the plate, with a second wiring terminal provided in each wiring groove.

[0022] Optionally, the plurality of conductive sheets are divided into two groups, the two groups of conductive sheets are symmetrically arranged along the transverse direction of the intermediate housing, and the second terminal of each group of conductive sheets is used to connect to the corresponding motor assembly.

[0023] Optionally, the electrical control mounting base is disposed on the top of the intermediate housing component, and the electrical control mounting base is integrally formed with the intermediate housing component.

[0024] Optionally, the intermediate housing component is provided with multiple first reinforcing ribs extending in the lateral direction, and / or

[0025] The intermediate box body is provided with multiple second reinforcing ribs extending along the front-to-back direction.

[0026] The present invention also provides a powertrain comprising two motor assemblies, two transmission assemblies and the aforementioned powertrain housing, wherein each motor assembly is disposed within one of the motor housings and the two transmission assemblies are disposed within a receiving space defined between the intermediate housing member and the side housing member.

[0027] The present invention also provides a vehicle including the powertrain described above.

[0028] The technical solution provided by the embodiments of the present invention has the following advantages compared with the prior art:

[0029] The powertrain housing provided by this invention supports the motor controller through an intermediate housing component, avoiding the problem of poor assembly accuracy caused by the fit tolerance between housings, and has high assembly accuracy, thus making the installation reliable. At the same time, it utilizes the spare space between the two motor components to set up a terminal block mounting cavity to accommodate the terminal block, which has a high degree of integration. Attached Figure Description

[0030] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0031] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, those skilled in the art can obtain other drawings based on these drawings without creative effort.

[0032] Figure 1 This is a schematic diagram of the powertrain housing according to an embodiment of the present invention;

[0033] Figure 2 This is an exploded view of the powertrain housing according to an embodiment of the present invention;

[0034] Figure 3 This is a schematic diagram of the structure of the intermediate box component according to an embodiment of the present invention;

[0035] Figure 4 This is a schematic diagram of the top structure of the intermediate box component according to an embodiment of the present invention;

[0036] Figure 5 This is a schematic diagram of the structure when a motor controller is installed on the intermediate housing component according to an embodiment of the present invention;

[0037] Figure 6 This is a schematic diagram of the terminal block structure according to an embodiment of the present invention;

[0038] Figure 7 This is a transmission principle diagram of the powertrain described in an embodiment of the present invention.

[0039] Explanation of reference numerals in the attached figures

[0040] 1. Intermediate housing component; 11. First mounting hole; 12. Second mounting hole; 13. Third mounting hole; 14. First reinforcing rib; 15. Second reinforcing rib; 16. First mounting cavity; 161. First left half mounting cavity; 162. First right half mounting cavity; 17. Second mounting cavity; 171. Second left half mounting cavity; 172. Second right half mounting cavity; 18. Intermediate partition plate; 2. Side housing component; 21. Motor end cover; 22. Motor housing; 3. Electrical control mounting base; 31. Mounting base; 32. First support base; 321. Reinforcing plate; 33. Second 34. Support base; 35. First wire threading opening; 36. Assembly opening; 37. Terminal block mounting cavity; 4. Terminal block; 41. Plate; 42. Conductive sheet; 421. First terminal; 422. Second terminal; 43. Terminal block; 44. Wiring groove; 45. Neutral wire terminal; 5. Motor controller; 6. First motor assembly; 7. Second motor assembly; 8. Locking mechanism; 9, 91. Motor output shaft; 92, 93. Intermediate shaft; 94, 95. Power output shaft; 96. First transmission device; 97. Second transmission device. Detailed Implementation

[0041] To better understand the above-mentioned objectives, features, and advantages of the present invention, the solutions of the present invention will be further described below. It should be noted that, unless otherwise specified, the embodiments and features of the present invention can be combined with each other.

[0042] The following description sets forth many specific details in order to provide a full understanding of the invention, but the invention may also be practiced in other ways different from those described herein; obviously, the embodiments described in the specification are only some, not all, of the embodiments of the invention.

[0043] Combination Figures 1 to 5 As shown, the powertrain housing provided in this embodiment of the invention includes a middle housing component 1 and two side housing components 2.

[0044] The intermediate housing 1 is provided with an electrical control mounting base 3 for mounting the motor controller 5. The electrical control mounting base 3 has a terminal block mounting cavity 37 for accommodating the terminal block 4. Two side housings 2 are located on both sides of the intermediate housing 1, and each side housing 2 includes a motor housing 22 for mounting the motor assembly. The terminal block mounting cavity 37 is located in the portion of the space defined between the two motor housings 22 near the electrical control mounting base 3.

[0045] Combination Figure 1 and Figure 2 As shown, a motor end cover 21 is provided on the side of the side housing 2 away from the middle housing 1. That is, the powertrain housing includes two motor end covers 21, two side housings 2, and one middle housing 1. The motor assembly includes a drive motor, which is disposed within a motor housing 22. The motor end cover 21 is disposed at the end of the motor housing 22 away from the middle housing 1. A terminal block 4 is disposed within a terminal block mounting cavity 37, and the motor controller 5 is wiredly connected to the terminal block 4. The motor assembly is also wiredly connected to the terminal block 4.

[0046] The powertrain housing provided by this invention supports the motor controller 5 through the intermediate housing component 1, avoiding the problem of poor assembly accuracy caused by the fit tolerance of the housing, and has high assembly accuracy, thus making the installation reliable. At the same time, it utilizes the spare space between the two motor components to set up the terminal mounting cavity 37 to accommodate the terminal block 4, which has a high degree of integration.

[0047] In some embodiments, the powertrain housing provided by this invention can be used on a dual-drive assembly. For example... Figure 7As shown, the motor assembly includes a first motor assembly 6 and a second motor assembly 7. An intermediate housing 1 may define a first mounting cavity 16 located between the first motor assembly 6 and the second motor assembly 7, below the terminal block mounting cavity 37. The motor output shafts of the first motor assembly 6 and the second motor assembly 7 may extend into the first mounting cavity 16, respectively. Furthermore, the intermediate housing 1 may also define a second mounting cavity 17 located below the longitudinal side of the first mounting cavity 16. The dual-electric drive assembly may include a transmission device and a power output shaft extending at least partially within the second mounting cavity 17. The motor output shafts of the first motor assembly 6 and the second motor assembly 7 can transmit power to the power output shaft via the transmission device. Specifically, the first motor assembly 6 and the second motor assembly 7 are respectively connected to the left wheel W1 and the right wheel W2 via a transmission device (e.g., multiple sets of gears). The intermediate housing 1 may also be provided with a locking mechanism 8 that locks or releases the transmission path from the first motor assembly 6 to the left wheel W1 and the transmission path from the second motor assembly 7 to the right wheel W2, thereby enabling the first motor assembly 6 and the second motor assembly 7 to drive the left wheel W1 and the right wheel W1 independently or synchronously.

[0048] To facilitate a better understanding of the present invention, Figure 7 The diagram also schematically illustrates the specific structure of the intermediate housing 1 and the transmission device in the preferred embodiment. Specifically, side housings 2 can be connected to the lateral sides of the intermediate housing 1, and the two side housings 2 can be connected to the two sides of the intermediate housing 1 by fasteners such as bolts. The first motor assembly 6 and the second motor assembly 7 are respectively installed into the two side housings 2 so that they can be assembled into the vehicle after the sub-assembly is completed.

[0049] In a preferred embodiment of the dual-powertrain of the present invention, a central partition 18 is provided in the intermediate housing 1, which divides the first mounting cavity 16 into a first left mounting cavity 161 and a first right mounting cavity 162, and divides the second mounting cavity 17 into a second left mounting cavity 171 and a second right mounting cavity 172. One end of each gear shaft (e.g., motor output shafts 9, 91, intermediate shafts 92, 93, power output shafts 94, 95) can be rotatably mounted to the central partition 18 via bearings. The motor output shaft 9 of the first motor assembly 6 extends into the first left mounting cavity 161 and is driven to the power output shaft 94 on the left side via a first transmission device 92 provided in the second left mounting cavity 171 for driving the left wheel W1 to rotate; the motor output shaft 91 of the second motor assembly 7 extends into the first right mounting cavity 162 and is driven to the second power output shaft 95 on the right side via a second transmission device 97 provided in the second right mounting cavity 172 for driving the right wheel W2 to rotate.

[0050] Combination Figures 3 to 5 As shown, the intermediate housing 1 has a first mounting hole 11 that mates with the motor output shafts 9 and 91 of the motor assembly. The first mounting hole 11 is located directly below the terminal block mounting cavity 37. In this design, only the small input gear in the middle and the transmission gear meshing with it below the small input gear are required spaces between the two drive motors. Therefore, the remaining space around the small input gear can be used to set up the corresponding structure. That is, the top space between the two drive motors is used to set up the electronic control mounting base 3 and the terminal block mounting cavity 37, so that the structural layout of the powertrain housing is more reasonable.

[0051] The intermediate housing 1 also has a third mounting hole 13 that mates with the power output shafts 94 and 95. The third mounting hole 13 is located on the side of the first mounting hole 11 away from the electronic control mounting base 3. Further optimized, the third mounting hole 13 is located below and in front of the first mounting hole 11, so that the longitudinal direction of the intermediate housing 1 is inclined, effectively reducing the vertical space occupied by the powertrain housing. In addition, the intermediate housing 1 also has a second mounting hole 12 that mates with the intermediate shafts 92 and 93. The second mounting hole 12 is located between the first mounting hole 11 and the third mounting hole 13.

[0052] Combination Figure 3 and Figure 4 As shown, the electrical control mounting base 3 is provided with multiple mounting seats 31 for connecting to the motor controller 5, and the mounting seats 31 protrude laterally from the electrical control mounting base 3. In this design, the mounting point of the motor controller 5 protrudes relative to the side surface of the intermediate housing 1 to obtain a larger electrical control mounting area. In addition, this design allows bolts to pass through the motor controller 5 from top to bottom and be screwed onto the mounting seats 31, thereby increasing the convenience of assembling the motor controller 5.

[0053] The electrical control mounting base 3 includes a first support base 32 and a second support base 33. The first support base 32 and the second support base 33 are arranged opposite each other along the front-rear direction of the intermediate housing component 1. Each of the first support base 32 and the second support base 33 is provided with at least two mounting seats 31, and the lateral width of the first support base 32 is greater than the lateral width of the second support base 33. Herein, the front-rear direction in this application refers to... Figure 3In the X-axis direction, the first support 32 and the second support 33 are spaced apart along the X-axis, and the structural strength of the first support 32 is greater than that of the second support 33, so that the electrical control mounting base 3 forms a structure that is smaller in the front and larger in the back. This is because the capacitor in the motor controller 5 has a relatively large mass, so the rear area where the capacitor is located in the motor controller 5 will be heavier. Therefore, this application increases the structural strength of the first support 32 used to support the rear area of ​​the motor controller 5 to ensure that the first support 32 has sufficient support strength and increases the stability of the motor controller 5 installation.

[0054] Further optimized, the first support base 32 is provided with multiple reinforcing plates 321, which are spaced apart in the lateral direction of the intermediate housing component 1 to form a grid-like structure on the top of the first support base 32. The multiple reinforcing plates 321 effectively increase the structural strength of the first support base 32, while the grid-like structure on the top of the first support base 32 reduces its weight, thereby reducing the weight of the entire powertrain housing.

[0055] Combination Figure 3 and Figure 4 As shown, a mounting base 31 is provided on each side of the first support base 32, and a mounting base 31 is provided on each side of the second support base 33. The top of the mounting base 31 extends upward so that the electric control mounting base 3 forms a groove 34 that is recessed towards the interior of the intermediate housing 1. Specifically, there are four mounting points for the motor controller 5, and the four mounting points are evenly distributed. The four mounting points cooperate with the four fixing points of the motor controller 5 to effectively ensure the installation accuracy of the dual electric control assembly and the intermediate housing 1. The top of the mounting base 31 extends upward beyond the electric control mounting base 3, so that the tops of the corresponding two sides of the electric control mounting base 3 along the lateral direction form grooves 34. The lateral direction at this point is the... Figure 3 The Y-axis direction in the middle, combined with Figure 3 , Figure 4 and Figure 5 As shown, the mounting point of the electric control mounting base 3 has a height difference and an arc-shaped connection structure relative to the mounting surface, forming a groove 34 between the bottom of the motor controller 5 and the middle housing 1. This provides space for thermal expansion and contraction allowance, space avoidance for the bottom part of the motor controller 5 to protrude from the structure, and space for air intake to achieve air cooling.

[0056] The electrical control mounting base 3 has first wiring openings 35 on both sides corresponding to the transverse direction of the intermediate housing 1, allowing wires to pass through. These first wiring openings 35 communicate with the terminal block mounting cavity 37. This facilitates the connection between the motor assembly and the terminal block 4. The wiring at this location includes the motor's three-phase wires and neutral wire. The front side of the electrical control mounting base 3 has an assembly opening 36, which communicates with the terminal block mounting cavity 37. The wiring bolts of the motor controller 5 can be tightened through the assembly opening 36, increasing operational convenience. The top of the electrical control mounting base 3 has a second wiring opening, which communicates with the terminal block mounting cavity 37, facilitating the connection between the motor controller 5 and the terminal block 4.

[0057] like Figure 6 As shown, the terminal block 4 includes a plate 41 for connecting to the intermediate housing 1. The plate 41 is preferably bolted to the top of the intermediate housing 1 to increase ease of assembly and disassembly and to enhance the connection's strength. The plate 41 is an insulating plate, and multiple conductive plates 42 are mounted on it. Each conductive plate 42 has a corresponding first terminal 421 and a second terminal 422, both extending out of the plate 41. The first terminal 421 is used to connect to the motor controller 5, and the second terminal 422 is used to connect to the motor assembly.

[0058] A terminal block 43 is vertically mounted on one side of the plate 41. The terminal block 43 is positioned on the side of the plate 41 closest to the second support base 33, such that the terminal block 43 is positioned opposite the mounting opening 36 on the second support base 33. A first terminal 421 extends out of the terminal block 43 and is attached to the side of the terminal block 43. The top surface of the plate 41 has multiple spaced wiring grooves 44, each wiring groove 44 containing a second terminal 422, which is attached to the top surface of the plate 41. A first wire-passing opening 35 is positioned opposite the wiring groove 44 to facilitate the lead-out of the wire.

[0059] Multiple conductive plates 42 are divided into two groups, which are symmetrically arranged along the transverse direction of the intermediate housing 1. The second terminal 422 of each group of conductive plates 42 is used to connect to its corresponding motor assembly. For example... Figure 6As shown, there are six conductive plates 42. Three conductive plates 42 form a group for connecting one of the motor components and the motor controller 5. Two groups of conductive plates 42 are respectively located on both sides of the terminal block 4. Specifically, three wiring slots 44 are provided on each side of the plate 41 along the Y-axis direction, spaced apart along the X-axis direction. The second terminals 422 of the conductive plates 42 extend through the corresponding wiring slots 44 to form the three-phase wiring terminals of the motor component. The first terminals 421 of the three conductive plates 42 are respectively located on the side of the terminal block 43, spaced apart along the Y-axis direction to form the three-phase wiring terminals of the motor controller 5. A neutral wire terminal 45 is also provided on the top of the side of the plate 41 away from the terminal block 43. The neutral wire is used when the multiplexed motor is being boosted for charging and is not connected to the motor controller 5.

[0060] The electrical control mounting base 3 is located on the top of the intermediate housing component 1, and the electrical control mounting base 3 is integrally formed with the intermediate housing component 1, which increases the convenience of production and can ensure the structural strength of the powertrain housing.

[0061] The intermediate housing component 1 is provided with multiple first reinforcing ribs 14 extending in the lateral direction, and / or multiple second reinforcing ribs 15 extending in the longitudinal direction. Specifically, since the rotation of the left and right drive motors is relatively independent, in order to improve the lateral modality of the powertrain housing and enhance NVH performance, a large number of first reinforcing ribs 14 extending in the lateral direction (Y-axis direction in the figure) are provided on the intermediate housing component 1. In addition, since the longitudinal direction of the powertrain housing is inclined and has a partially recessed structure, in order to improve the longitudinal modality of the powertrain housing and enhance NVH performance, a large number of second reinforcing ribs 15 extending in the longitudinal direction (Z-axis direction in the figure) are provided on the intermediate housing component 1. Further optimized, in order to increase the structural strength of the intermediate housing component 1, the first reinforcing ribs 14 and the second reinforcing ribs 15 are arranged intersectingly.

[0062] The present invention also provides a powertrain comprising two motor assemblies, two transmission assemblies, and the aforementioned powertrain housing. Each motor assembly is disposed within a motor housing 22, and the two transmission assemblies are disposed within a receiving space defined between an intermediate housing member 1 and a side housing member 2. The powertrain housing at this location includes all the technical features of the aforementioned powertrain housing.

[0063] The present invention also provides a vehicle including the powertrain described above, wherein the powertrain includes all the technical features of the powertrain described above, and further includes all the technical features of the powertrain housing described above.

[0064] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0065] The above description is merely a specific embodiment of the present invention, enabling those skilled in the art to understand or implement the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention is not to be limited to the embodiments described herein, but is to be accorded the widest scope consistent with the principles and novel features of the invention herein.

Claims

1. A powertrain pack characterized by, include: The intermediate housing (1) is provided with an electrical control mounting base (3) for mounting a motor controller (5), and the electrical control mounting base (3) has a wiring socket mounting cavity (37) for accommodating a wiring socket (4); and Two side housings (2) are disposed on both sides of the middle housing (1), and each side housing (2) includes a motor housing (22) for mounting a motor assembly. The terminal block mounting cavity (37) is located in the portion of the space defined between the two motor housings (22) near the electrical control mounting base (3); The intermediate housing (1) is provided with a first mounting hole (11) that mates with the motor output shaft of the motor assembly. The first mounting hole (11) is located directly below the terminal block mounting cavity (37). The electrical control mounting base (3) is provided with a plurality of mounting bases (31) for connecting to the motor controller (5), and the mounting bases (31) protrude laterally from the electrical control mounting base (3); the electrical control mounting base (3) includes a first support base (32) and a second support base (33), the first support base (32) and the second support base (33) are arranged opposite to each other along the front and rear direction of the intermediate housing (1), and the first support base (32) and the second support base (33) are respectively provided with at least two mounting bases (31), and the lateral width of the first support base (32) is greater than the lateral width of the second support base (33); The electrical control mounting base (3) has a first wire-passing opening (35) on each side corresponding to the transverse direction of the intermediate housing (1), which is connected to the terminal block mounting cavity (37); the top of the electrical control mounting base (3) has a second wire-passing opening, which is connected to the terminal block mounting cavity (37). The front side of the electrical control mounting base (3) is provided with an assembly opening (36), which is connected to the terminal block mounting cavity (37).

2. The powertrain housing according to claim 1, characterized in that, The intermediate housing (1) is also provided with a third mounting hole (13) that mates with the power output shaft. The third mounting hole (13) is located on the side of the first mounting hole (11) away from the electric control mounting base (3).

3. The powertrain housing according to claim 2, characterized in that, The third mounting hole (13) is located below the front side of the first mounting hole (11).

4. The powertrain housing according to claim 2 or 3, characterized in that, The intermediate housing component (1) is also provided with a second mounting hole (12) that mates with the intermediate shaft. The second mounting hole (12) is located between the first mounting hole (11) and the third mounting hole (13).

5. The powertrain housing according to claim 1, characterized in that, The first support base (32) is provided with a plurality of reinforcing plates (321), and the plurality of reinforcing plates (321) are spaced apart in the lateral direction of the intermediate box body (1) so that the top of the first support base (32) forms a grid structure.

6. The powertrain case of claim 1, wherein, The first support (32) has a mounting seat (31) on each side, and the second support (33) has a mounting seat (31) on each side. The top of the mounting seat (31) extends upward so that the electrical control mounting seat (3) forms a groove (34) that is recessed into the interior of the intermediate housing (1).

7. The powertrain case of claim 1, wherein, The terminal block (4) includes a plate (41) for connecting to the intermediate housing (1). A plurality of conductive sheets (42) are provided on the plate (41). Each conductive sheet (42) has a corresponding first terminal (421) and a second terminal (422). The first terminal (421) and the second terminal (422) extend out of the plate (41). The first terminal (421) is used to connect to the motor controller (5), and the second terminal (422) is used to connect to the motor assembly.

8. The powertrain housing according to claim 7, characterized in that, A wiring board (43) is vertically provided on one side of the plate (41), and the first wiring terminal (421) extends out of the wiring board (43). The top surface of the plate (41) is provided with a plurality of spaced wiring grooves (44), and each wiring groove (44) contains a second wiring terminal (422).

9. The powertrain housing according to claim 7 or 8, characterized in that, The multiple conductive sheets (42) are divided into two groups, and the two groups of conductive sheets (42) are symmetrically arranged along the transverse direction of the intermediate housing (1), and the second terminal (422) of each group of conductive sheets (42) is used to connect to the corresponding motor assembly.

10. The powertrain case of claim 1, wherein, The electrical control mounting base (3) is located on the top of the intermediate housing (1), and the electrical control mounting base (3) is integrally formed with the intermediate housing (1).

11. The powertrain case of claim 1, wherein, The intermediate box component (1) is provided with multiple first reinforcing ribs (14) extending in the lateral direction, and / or The intermediate box component (1) is provided with multiple second reinforcing ribs (15) extending along the front-rear direction.

12. A powertrain, characterized in that, It includes two motor assemblies, two transmission assemblies, and a powertrain housing as described in any one of claims 1 to 11, each of the motor assemblies being disposed within one of the motor housings (22), and the two transmission assemblies being disposed within a receiving space defined between the intermediate housing member (1) and the side housing member (2).

13. A vehicle, characterized in that, Including the powertrain as described in claim 12.

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