CN219339173U - Power assembly box, power assembly and vehicle - Google Patents

Abstract

The utility model relates to the field of vehicle driving systems, and discloses a power assembly box, a power assembly and a vehicle. The power assembly box body comprises a box body, wherein a first mounting hole and two motor mounting cavities are formed in the box body, and the first mounting hole is positioned between the two motor mounting cavities; the box body is also provided with a plate change installation area which is positioned between the two motor installation cavities and is oppositely arranged with the first installation hole in the radial direction of the motor output shaft. The power assembly comprises the power assembly box body. The vehicle comprises the power assembly. The box body provided by the utility model forms the plate change installation area between the two motor components and at one side opposite to the motor output shaft so as to install and arrange the oil cooling plate change, thereby utilizing the space between the two motor components to arrange the oil cooling plate change and improving the space utilization rate and the integration degree of the power assembly box body.

Description

Power assembly box, power assembly and vehicle

Technical Field

The utility model relates to the field of vehicle driving systems, in particular to a power assembly box, a power assembly and a vehicle.

Background

The current new energy automobile industry is gradually developed, and the power assembly is used as one of extremely important parts in the new energy automobile, and has higher requirements on reliability, light weight and high space utilization rate.

For the existing double-motor assembly technology, double motors, double electric controls and double speed reducers are integrated, and the required arrangement space is larger than that of a single-motor system, so that a new challenge is provided for the space utilization rate of the double-motor assembly technology. In the traditional power assembly structure, the oil cooling plate is arranged on the outer side of the box body in a replacement mode, space occupation is additionally increased, and the integration level of the box body is low.

Disclosure of Invention

In order to solve the technical problems or at least partially solve the technical problems, the utility model provides a power assembly box body, a power assembly and a vehicle.

The utility model provides a power assembly box body, which comprises a box body,

the box body is internally provided with a first mounting hole and two motor mounting cavities, the first mounting hole is positioned between the two motor mounting cavities, the motor mounting cavities are used for mounting motor components, and the first mounting hole is used for mounting a motor output shaft;

the box body is also provided with a plate change installation area, the plate change installation area is positioned between the two motor installation cavities and is opposite to the first installation holes in the radial direction of the motor output shaft, the plate change installation area is used for installing an oil cooling plate change, and the plate change installation area is provided with a first oil crossing and a second oil crossing of an oil way of the box body.

Optionally, the second oil port includes two oil port bodies, the first oil port is used for being communicated with the first oil port on the oil cooling plate, and two oil port bodies are respectively communicated with the second oil port and the third oil port on the oil cooling plate.

Optionally, the first oil port and the two oil port bodies are arranged at intervals along a preset direction.

Optionally, be equipped with in the board trades the installation district be used for with the oil cooling board trades the annular plate of being connected, first oil crossing with the second oil crossing all sets up the inboard of annular plate.

Optionally, be equipped with in the board trades the installation zone and be used for encircleing first oil crossing with the bounding wall of second oil crossing, be equipped with the sealing washer on the bounding wall.

Optionally, a sealing plate is arranged on the inner side of the annular plate, and the sealing plate and one side edge of the annular plate corresponding to the sealing plate enclose the coaming.

Optionally, a first region corresponding to the first oil port and a second region corresponding to the second oil port are formed in the coaming, and the first region and the second region are separated by a partition plate.

Optionally, the sealing ring is provided with a first sealing area corresponding to the first area, a second sealing area corresponding to the second area and a sealing separation part corresponding to the partition plate.

Optionally, a transition region is formed on one side of the first region and one side of the second region, the transition region is communicated with the second region, and the transition region and the first region are separated by the partition plate.

Optionally, a third sealing area corresponding to the transition area is further arranged on the sealing ring, the third sealing area is communicated with the second sealing area, and the third sealing area is separated from the first sealing area through the sealing separation part.

Optionally, the transition region is in the shape of a bar.

Optionally, the board change mounting area is located behind the first mounting hole.

Optionally, an electric control installation seat is arranged at the top of the box body, and a part of electric control installation seat is formed on the upper side wall of the plate change installation area.

Optionally, the electric control mounting seat is located between the two motor mounting cavities and is opposite to the first mounting hole in the radial direction of the motor output shaft.

Optionally, a baffle is arranged at the bottom of the plate change installation area.

Optionally, the box body includes middle box and sets up two side boxes of the both sides of middle box, be equipped with on the middle box and be used for installing motor output shaft's first mounting hole, the board trades the installation zone setting and is in on the middle box with first mounting hole is followed motor output shaft's radial opposite position department, every be equipped with one in the side box motor installation cavity.

Optionally, side mounting plates for mounting the side boxes are arranged on two sides of the middle box, and part of the side mounting plates are formed on the side walls of the plate replacement mounting areas.

Optionally, the middle box is further provided with a second mounting hole for being matched with the middle shaft and a third mounting hole for being matched with the power output shaft, and the first mounting hole, the second mounting hole and the third mounting hole are arranged at intervals along the inclined direction, so that the longitudinal direction of the middle box is in an inclined shape.

Optionally, the middle box body is provided with a plurality of first reinforcing ribs extending along the transverse direction, and/or

The middle box body is provided with a plurality of second reinforcing ribs extending along the front-back direction.

The utility model also provides a power assembly, which comprises the power assembly box body.

The utility model also provides a vehicle comprising the power assembly.

Compared with the prior art, the technical scheme provided by the embodiment of the utility model has the following advantages:

the motor output shaft is penetrated in the box body, and the sectional area of the motor output shaft is smaller than that of motor components at two sides of the motor output shaft, so that a plate change installation area is formed on one side of the box body, which is opposite to the motor output shaft, between the two motor components for installing and arranging the oil cooling plate change, the space between the two motor components is further utilized for arranging the oil cooling plate change, and the space utilization rate and the integration degree of the power assembly box body are improved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the utility model and together with the description, serve to explain the principles of the utility model.

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.

FIG. 1 is a schematic diagram of a powertrain housing according to an embodiment of the present utility model;

FIG. 2 is an exploded view of a powertrain housing according to an embodiment of the present utility model;

FIG. 3 is a schematic view of the structure of the middle case according to the embodiment of the present utility model;

FIG. 4 is a cross-sectional view of an intermediate tank according to an embodiment of the present utility model;

FIG. 5 is an exploded view of the intermediate housing according to an embodiment of the present utility model;

FIG. 6 is an internal schematic view of a board replacement mounting area according to an embodiment of the present utility model;

FIG. 7 is a schematic diagram of an oil cooler plate changer according to an embodiment of the utility model;

FIG. 8 is a schematic structural view of a seal ring according to an embodiment of the present utility model;

fig. 9 is a transmission schematic diagram of the powertrain according to an embodiment of the present utility model.

Description of the reference numerals

1. A case body; 11. a middle box body; 111. a first mounting hole; 112. a second mounting hole; 113. a third mounting hole; 114. a first reinforcing rib; 115. a second reinforcing rib; 116. a baffle; 17. a first mounting cavity; 171. a first left mounting cavity; 172. a first right half mounting cavity; 18. a second mounting cavity; 181. a second left mounting cavity; 182. a second right half mounting cavity; 19. a middle partition plate; 12. a side case; 121. a motor mounting cavity; 13. a motor end cover; 14. an electric control mounting seat; 2. a board replacement installation area; 21. a side mounting plate; 3. exchanging an oil cooling plate; 31. a mounting plate; 4. a first oil port; 40. an oil port body; 41. a first oil port body; 42. a second oil port body; 43. a second oil port; 5. an annular plate; 6. coaming plate; 61. a seal ring; 611. a first sealing region; 612. a second sealing region; 613. a third sealing region; 614. a seal partition; 62. a sealing plate; 63. a second region; 64. a first region; 65. a transition region; 66. sealing grooves; 67. a partition plate; 8. a first motor assembly; 81. a second motor assembly; 82. a locking mechanism; 9,91, a motor output shaft; 92,93, intermediate shaft; 94,95, power take-off shaft; 96. a first transmission; 97. and a second transmission.

Detailed Description

In order that the above objects, features and advantages of the utility model will be more clearly understood, a further description of the utility model will be made. The embodiments of the present utility model and the features in the embodiments may be combined with each other without collision.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, but the present utility model may be practiced otherwise than as described herein; it is apparent that the embodiments in the specification are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1 to 5, a power assembly case according to an embodiment of the present utility model includes a case body 1. The inside of box body 1 is equipped with first mounting hole 111 and two motor installation cavity 121, and first mounting hole 111 is located between two motor installation cavity 121, and motor installation cavity 121 is used for installing motor assembly, and first mounting hole 111 is used for installing motor output shaft, installs a motor assembly between two motor installation cavity 121 respectively. The box body 1 is also provided with a plate change installation area 2, the plate change installation area 2 is positioned between the two motor installation cavities 121 and is arranged opposite to the first installation hole 111 in the radial direction of the motor output shaft, the plate change installation area 2 is used for installing an oil cooling plate change 3, and the plate change installation area 2 is provided with a first oil port 4 and a second oil port 43 of an oil way of the box body 1 so as to realize the flow of lubricating oil in the box body 1.

The motor output shaft is arranged in the box body 1 in a penetrating way, and the sectional area of the motor output shaft is smaller than that of motor components on two sides of the motor output shaft, so that a plate change installation area 2 is formed on one side, opposite to the motor output shaft, of the box body 1 between the two motor components to install and arrange an oil cooling plate change 3, the space between the two motor components is further utilized to arrange the oil cooling plate change 3, and the space utilization rate and the integration degree of the power assembly box are improved.

As shown in fig. 5 and 6, the second oil port 43 includes two oil port bodies 40, the first oil port 4 is used for communicating with the first oil port on the oil cooling plate 3, and the two oil port bodies 40 are respectively communicated with the second oil port and the third oil port on the oil cooling plate 3. Further optimally, the first oil port 4 and the two oil port bodies 40 are disposed at intervals along a preset direction. The preset direction at the position is the Z direction in fig. 5, so that the space distribution is more reasonable. As shown in fig. 6, the two oil port bodies 40 may be divided into a first oil port body 41 and a second oil port body 42, and the first oil port 4, the first oil port body 41, and the second oil port body 42 are disposed in this order from bottom to top. During operation, lubricating oil flows into the oil cooling plate exchanger 3 from the first oil port 4 of the box body 1, and then flows out from the second oil port and the third oil port of the oil cooling plate exchanger 3, and flows into different oil ways in the box body 1 through the first oil port body 41 and the second oil port body 42 to be subjected to lubrication and cooling of corresponding structures, so that the working requirements of the power assembly are met. Conversely, the lubricating oil can also flow into the oil cooling plate exchanger 3 from the first oil port body 41 and the second oil port body 42 of the box body 1, and then flows out from the first oil port of the oil cooling plate exchanger 3 and flows into the oil path inside the box body 1 through the first oil port 4 to be lubricated and cooled in a corresponding structure.

As shown in fig. 5 and 6, the annular plate 5 for connecting with the oil cooling plate 3 is provided in the plate change installation area 2, and the first oil port 4 and the second oil port 43 are both provided inside the annular plate 5. Specifically, as shown in fig. 7, a mounting plate 31 is provided on one side of the oil cooling plate 3 connected to the case body 1, and the mounting plate 31 is connected to the annular plate 5 by bolts, so as to increase the convenience of assembly and disassembly and the firmness after assembly. Wherein, annular plate 5 can be rectangular or approximate rectangular, and the processing of being convenient for, the bolt is 6, and 6 bolts evenly distributed along the circumference direction of annular plate 5 for the atress of mounting panel 31 is more even, increases the fastness of connection.

The board trades and installs and is equipped with the bounding wall 6 that is used for encircleing first oil crossing 4 and second oil crossing 43 in the district 2, is equipped with sealing washer 61 on the bounding wall 6, avoids lubricating oil to leak. Specifically, the periphery of the coaming 6 is provided with a sealing groove 66, the sealing ring 61 is arranged in the sealing groove 66, and part of the sealing ring 61 extends out of the sealing groove 66 towards the direction of the oil cooling plate exchanger 3, and the oil cooling plate exchanger 3 is attached to the extending part of the sealing ring 61, so that the sealing effect is ensured.

As shown in fig. 6, the inside of the annular plate 5 is provided with a sealing plate 62, and the sealing plate 62 and one of the side edges of the annular plate 5 corresponding thereto enclose the coaming 6. Wherein, the inside of bounding wall 6 is formed with first region 64 corresponding to first oil crossing 4 and second region 63 corresponding to second oil crossing 43, separates through baffle 67 between first region 64 and the second region 63, ensures that the circulation path of lubricating oil satisfies the design demand. Further preferably, a transition region 65 is formed on one side of the first region 64 and the second region 63, the transition region 65 communicates with the second region 63, and the transition region 65 is separated from the first region 64 by a partition 67. The transition region 65 is in a strip shape, specifically, the transition region 65 extends along the Z-axis direction in fig. 5, so that the area of the transition region 65 is minimized, and the area enclosed by the transition region 65, the first region 64 and the second region 63 is minimized, so as to reduce the area and the perimeter of the seal ring 61.

As shown in fig. 5 and 8, the seal ring 61 is provided with a first seal region 611 corresponding to the first region 64, a second seal region 612 corresponding to the second region 63, and a seal partition 614 corresponding to the separator 67. Further preferably, a third sealing area 613 corresponding to the transition area 65 is further provided on the sealing ring 61, the third sealing area 613 is communicated with the second sealing area 612, and the third sealing area 613 is separated from the first sealing area 611 by a sealing separation portion 614. This design provides for the integrated arrangement of the seals for sealing the first region 64, the second region 63 and the transition region 65 as one sealing ring 61, which increases the convenience of assembly with respect to the arrangement of a plurality of seals.

As shown in connection with fig. 3 to 5, the board change mounting area 2 is located behind the first mounting hole 111. The design mode enables the oil cooling plate to be arranged in the rear space between the two motors, and the structure of the box body 1 is more compact.

The top of the box body 1 is provided with an electric control installation seat 14, and the upper side wall of the plate change installation area 2 forms part of the electric control installation seat 14. Further preferably, the electrically controlled mounting seat 14 is located between the two motor mounting cavities 121 and is disposed opposite the first mounting hole 111 in the radial direction of the motor output shaft. The upper side wall of the board replacement installation area 2 forms a part of the electric control installation seat 14 by the design mode, so that the integration level of the box body 1 is increased.

In addition, the bottom of the board change installation area 2 is provided with a baffle 116, and the baffle 116 is arranged along the transverse direction of the box body 1, wherein the transverse direction of the baffle is the X-axis direction in fig. 5, so that the structural strength of the board change installation area 2 is increased, and the structural strength of the box body 1 is further increased.

As shown in fig. 1, the case body 1 includes a middle case 11 and two side cases 12 provided on both sides of the middle case 11, a first mounting hole 111 for mounting the motor output shaft is provided on the middle case 11, the board change mounting area 2 is provided on the middle case 11 at a position opposite to the first mounting hole 111 in the radial direction of the motor output shaft, and a motor mounting chamber 121 is provided in each side case 12. Specifically, the side of the side tank 12 far from the middle tank 11 is provided with a motor end cover 13, namely the power assembly tank comprises two motor end covers 13, two side tanks 12 and a middle tank 11, and the oil cooling plate exchanger 3 is arranged on the middle tank 11. The motor assembly includes a drive motor disposed within the side case 12. Further, a recessed plate-change mounting region 2 can be provided on the outer side of the intermediate case 11 corresponding to the motor output shaft.

Further preferably, the intermediate case 11 is provided on both sides with side mounting plates 21 for mounting the side case 12, and the side walls of the panel replacement mounting area 2 form part of the side mounting plates 21. The side wall of the plate change installation area 2 forms a part of the side installation plate 21 by the design mode, so that the integration level of the box body 1 is increased.

In some embodiments, the powertrain housing provided by embodiments of the present utility model may be used on a dual drive assembly. As shown in fig. 9, the motor assembly includes a first motor assembly 8 and a second motor assembly 81, and the intermediate housing 11 may define a first mounting cavity 17 between the first motor assembly 8 and the second motor assembly 81, the first mounting cavity 17 being located below the electrically controlled mounting block 14. The motor output shafts of the first motor assembly 8 and the second motor assembly 81 may extend into the first mounting cavity 17, respectively. Furthermore, the intermediate housing 11 may also define a second mounting cavity 18 located below the longitudinal sides of the first mounting cavity 17, and the dual electric drive assembly may include a transmission and a power take-off shaft extending at least partially within the second mounting cavity 18, the motor take-off shaft of the first motor assembly 8 and the motor take-off shaft of the second motor assembly 81 being capable of transmitting power to the power take-off shaft via the transmission. Specifically, the first motor assembly 8 and the second motor assembly 81 are drivingly connected to the left-hand wheel W1 and the right-hand wheel W2, respectively, by a transmission (e.g., a plurality of sets of gears). The intermediate case 11 may be further provided with a lock mechanism 82 that locks or releases a transmission path from the first motor unit 8 to the left wheel W1 and a transmission path from the second motor unit 81 to the right wheel W2, thereby enabling switching to drive the left wheel W1 and the right wheel W1 independently or synchronously by the first motor unit 8 and the second motor unit 81.

In order to facilitate a better understanding of the present utility model, the specific structure of the intermediate housing 11 and the transmission device, etc. in the preferred embodiment is also schematically shown in fig. 9. Specifically, lateral sides of the intermediate case 11 may be connected with side cases 12, respectively, and the two side cases 12 may be connected to both sides of the intermediate case 11 by fasteners such as bolts. The first motor assembly 8 and the second motor assembly 81 are respectively and correspondingly installed into the two side tanks 12 so as to be assembled into the whole vehicle after the split charging is completed.

In a double power assembly according to a preferred embodiment of the present utility model, a middle partition 19 is provided in the middle housing 11, the middle partition 19 dividing the first mounting chamber 17 into a first left half mounting chamber 171 and a first right half mounting chamber 172, and dividing the second mounting chamber 18 into a second left half mounting chamber 181 and a second right half mounting chamber 182. One end of each gear shaft (e.g., motor output shaft 9,91, intermediate shaft 92,93, power output shaft 94, 95) may be rotatably mounted to intermediate partition 19 by a bearing. The motor output shaft 9 of the first motor assembly 8 extends into the first left half mounting cavity 171 and is drivingly connected to the left power output shaft 94 through the first transmission 96 provided in the second left half mounting cavity 181 for driving the left wheel W1 to rotate; the motor output shaft 91 of the second motor assembly 81 extends into the first right half mounting cavity 172 and is drivingly connected to the right-hand power output shaft 95 for driving the right-hand wheel W2 in rotation by a second transmission 97 provided in the second right half mounting cavity 182.

As shown in fig. 3 to 5, the intermediate housing 11 is provided therein with a first mounting hole 111 to be fitted with the motor output shaft 9,91 of the motor assembly, the first mounting hole 111 being located directly below the electric control mount 14. Under this kind of design mode, only the little input gear in the middle between two driving motor and the drive gear of meshing rather than the below before the little input gear be just needed space, therefore the other space of little input gear outside round can all be utilized to set up corresponding structure, is used for setting up automatically controlled mount pad 14, rear side space through the headspace between two driving motor and sets up the oil cooling board and trades 3 to make the structural arrangement of power assembly box more reasonable.

The middle box 11 is further provided with a second mounting hole 112 matched with the middle shafts 92 and 93 and a third mounting hole 113 matched with the power output shafts 94 and 95, and the first mounting hole 111, the second mounting hole 112 and the third mounting hole 113 are arranged at intervals along the inclined direction, so that the middle box 11 is inclined in the longitudinal direction, the space occupation of the power assembly box in the vertical direction can be effectively reduced, and the structural arrangement of the power assembly box is more reasonable. In some embodiments, the first mounting hole 111, the second mounting hole 112, and the third mounting hole 113 are all provided on the intermediate partition 19.

The intermediate case 11 is provided with a plurality of first reinforcing ribs 114 extending in the lateral direction and/or the intermediate case 11 is provided with a plurality of second reinforcing ribs 115 extending in the front-rear direction. Specifically, since the rotation of the left and right motor assemblies is relatively independent, in order to improve the transverse mode of the powertrain case and improve the NVH performance, a large number of first reinforcing ribs 114 extending in the transverse direction (X-axis direction in fig. 5) are provided on the intermediate case 11. Further, since the longitudinal direction of the power train case is inclined and there is a partially recessed structure, in order to improve the longitudinal mode of the power train case and improve NVH performance, a large number of second reinforcing ribs 115 (Y-axis direction in fig. 5) extending in the front-rear direction are provided on the intermediate case 11. Further optimally, the first reinforcing ribs 114 are disposed to intersect with the second reinforcing ribs 115 in order to increase the structural strength of the intermediate tank 11.

The utility model also provides a power assembly, which comprises the power assembly box body, wherein the power assembly box body comprises all the technical characteristics of the power assembly box body.

The utility model also provides a vehicle, which comprises the power assembly, wherein the power assembly comprises all the technical characteristics of the power assembly, and further comprises all the technical characteristics of the power assembly box body.

It should be noted that in this document, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The foregoing is only a specific embodiment of the utility model to enable those skilled in the art to understand or practice the utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown and described herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (21)

1. A power assembly box body is characterized by comprising a box body (1),

the novel motor box comprises a box body (1), wherein a first mounting hole (111) and two motor mounting cavities (121) are formed in the box body (1), the first mounting hole is positioned between the two motor mounting cavities (121), the motor mounting cavities (121) are used for mounting motor components, and the first mounting hole is used for mounting a motor output shaft;

the oil-cooled oil tank is characterized in that the tank body (1) is further provided with a plate change installation area (2), the plate change installation area (2) is located between the two motor installation cavities (121) and is opposite to the first installation holes (111) in the radial direction of the motor output shaft, the plate change installation area (2) is used for installing an oil-cooled plate change (3), and the plate change installation area (2) is provided with a first oil port (4) and a second oil port (43) of an oil way of the tank body (1).

2. The powertrain housing according to claim 1, wherein the second oil port (43) includes two oil port bodies (40), the first oil port (4) is configured to communicate with a first oil port on the oil cooling plate (3), and the two oil port bodies (40) are configured to communicate with a second oil port and a third oil port on the oil cooling plate (3), respectively.

3. The powertrain housing according to claim 2, wherein the first oil port (4) and the two oil port bodies (40) are disposed at intervals along a preset direction.

4. The powertrain housing according to claim 1, characterized in that an annular plate (5) for connection with the oil cooling plate exchanger (3) is provided in the plate exchanger mounting area (2), and the first oil port (4) and the second oil port (43) are both provided inside the annular plate (5).

5. The power assembly box body according to claim 4, wherein a coaming (6) for surrounding the first oil port (4) and the second oil port (43) is arranged in the board replacement installation area (2), and a sealing ring (61) is arranged on the coaming (6).

6. The powertrain housing according to claim 5, characterized in that a sealing plate (62) is provided on the inner side of the annular plate (5), and the sealing plate (62) and one of the side edges of the annular plate (5) corresponding thereto enclose the shroud (6).

7. The powertrain housing according to claim 6, wherein a first region (64) corresponding to the first oil port (4) and a second region (63) corresponding to the second oil port (43) are formed inside the shroud (6), and the first region (64) and the second region (63) are separated by a partition (67).

8. The powertrain housing according to claim 7, wherein the seal ring (61) is provided with a first sealing region (611) corresponding to the first region (64), a second sealing region (612) corresponding to the second region (63), and a seal partition (614) corresponding to the separator (67).

9. The powertrain housing according to claim 8, characterized in that a transition region (65) is formed at one side of the first region (64) and the second region (63), the transition region (65) being in communication with the second region (63), the transition region (65) being separated from the first region (64) by the partition (67).

10. The powertrain housing according to claim 9, wherein a third sealing area (613) corresponding to the transition area (65) is further provided on the sealing ring (61), the third sealing area (613) being in communication with the second sealing area (612), the third sealing area (613) being separated from the first sealing area (611) by the sealing separation (614).

11. The powertrain housing of claim 9, wherein the transition region (65) is strip-shaped.

12. The powertrain housing of claim 1, wherein the panel change mounting area (2) is located rearward of the first mounting hole (111).

13. The powertrain housing according to claim 1, characterized in that the top of the housing body (1) is provided with an electrically controlled mounting seat (14), part of which is formed as an upper side wall of the panel-change mounting area (2).

14. The powertrain housing according to claim 13, wherein at least part of the electrically controlled mount (14) is located between two of the motor mounting cavities (121), and the electrically controlled mount (14) and the first mounting hole (111) are disposed opposite to each other in a radial direction of the motor output shaft.

15. The powertrain housing of claim 1, wherein a bottom of the panel change mounting area (2) is provided with a baffle (116).

16. The powertrain housing according to any one of claims 1 to 15, wherein the housing body (1) includes a middle housing (11) and two side housings (12) provided on both sides of the middle housing (11), a first mounting hole (111) for mounting the motor output shaft is provided on the middle housing (11), the board replacement mounting area (2) is provided on the middle housing (11) at a position opposite to the first mounting hole (111) in a radial direction of the motor output shaft, and one motor mounting cavity (121) is provided in each side housing (12).

17. A powertrain housing according to claim 16, characterized in that the intermediate housing (11) is provided on both sides with side mounting plates (21) for mounting the side housings (12), portions of the side mounting plates (21) being formed as side walls of the panel replacement mounting area (2).

18. The powertrain housing according to claim 16, wherein the intermediate housing (11) is further provided with a second mounting hole (112) for mating with an intermediate shaft and a third mounting hole (113) for mating with a power output shaft, and the first mounting hole (111), the second mounting hole (112) and the third mounting hole (113) are disposed at intervals along an oblique direction so that a longitudinal direction of the intermediate housing (11) is an oblique shape.

19. A power pack case according to claim 18, wherein the intermediate case (11) is provided with a plurality of first ribs (114) extending in the transverse direction, and/or

The middle box body (11) is provided with a plurality of second reinforcing ribs (115) extending along the front-rear direction.

20. A powertrain comprising a powertrain housing as claimed in any one of claims 1 to 19.

21. A vehicle comprising the powertrain of claim 20.

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