CN219339171U

CN219339171U - Power assembly box body, power assembly and vehicle

Info

Publication number: CN219339171U
Application number: CN202320039863.4U
Authority: CN
Inventors: 杨胜麟; 高缘; 陈勇; 张鸿明; 杨立峰
Original assignee: BYD Co Ltd
Current assignee: BYD Co Ltd
Priority date: 2023-01-05
Filing date: 2023-01-05
Publication date: 2023-07-14
Anticipated expiration: 2033-01-05

Abstract

The utility model relates to the field of new energy automobiles, and discloses a power assembly box body, a power assembly and a vehicle, wherein the power assembly box body comprises a middle box body piece (1), an assembly cavity is formed in the middle box body piece (1), the assembly cavity is used for accommodating at least part of two power output shafts (2), and a locking mechanism mounting groove (101) used for mounting a locking mechanism (3) is formed in the middle box body piece (1), wherein the locking mechanism (3) is used for performing power coupling on the two power output shafts (2). The utility model solves the technical problems that the prior four-wheel independent driving automobile technology adopts the left and right wheels to be respectively connected with different power output shafts to carry out the linkage of a motor and wheel rotating shafts, and the automobile can not smoothly climb or get out of the way due to insufficient power when a certain wheel is suspended or slipped.

Description

Power assembly box body, power assembly and vehicle

Technical Field

The utility model relates to the field of new energy automobiles, in particular to a power assembly box, a power assembly and a vehicle.

Background

The torque and speed of four wheels of the existing four-wheel independent drive automobile technology can be accurately controlled independently of each other, thereby bringing a series of advantages to realize smaller radius turning, auxiliary ESP function, auxiliary steering function, auxiliary braking function and the like, and improving the steering performance of the automobile.

However, since the left wheel and the right wheel are respectively connected with different power output shafts to perform the linkage of the motor and the wheel rotating shafts, if a certain wheel is suspended or slipped under the off-road working condition, the climbing or the getting out of the way may not be smooth due to insufficient power.

Disclosure of Invention

The utility model aims to solve the technical problems that the prior four-wheel independent drive automobile technology adopts the way that left wheels and right wheels are respectively connected with different power output shafts to carry out the linkage of a motor and wheel rotating shafts, and the automobile cannot climb or get out of the way smoothly due to insufficient power when a certain wheel is suspended or slipped.

In order to achieve the above object, an aspect of the present utility model provides a powertrain housing.

The power assembly box comprises a middle box body, an assembly cavity is formed in the middle box body and used for accommodating at least part of two power output shafts, and a locking mechanism mounting groove used for mounting a locking mechanism is formed in the middle box body, wherein the locking mechanism is used for coupling the two power output shafts in a power mode.

According to the power assembly box body provided by the utility model, the assembly cavity for accommodating at least part of the two power output shafts is formed in the middle box body piece, and the locking mechanism mounting groove for mounting the locking mechanism is formed in the middle box body piece so as to be used for carrying out power coupling on the two power output shafts, so that synchronous operation of the two power output shafts positioned at the left side and the right side of the assembly cavity under the action of the locking mechanism is realized, the power output of the power assembly is improved, and the technical problem that the motor and the wheel rotating shaft are linked by adopting the fact that the left wheel and the right wheel are respectively connected with different power output shafts in the existing four-wheel independent driving automobile technology is easy to climb or get rid of difficulty due to insufficient power when a certain wheel is suspended or slipped is solved. Meanwhile, the locking mechanism mounting groove of the locking mechanism is formed in the middle box body piece, so that the locking mechanism has higher integration level.

Preferably, a partition member for partitioning the assembly cavity into a left side cavity and a right side cavity is provided in the middle of the middle box member.

Preferably, the partition is provided with a power output shaft mounting hole, and the power output shaft mounting hole is communicated with the locking mechanism mounting groove.

Preferably, the outer periphery of the power output shaft mounting hole is provided with a third reinforcing rib along the radial direction thereof.

Preferably, the middle box body piece is provided with a mounting platform which is sunken towards the direction of the assembly cavity, and the locking mechanism mounting groove is formed in the mounting platform.

Preferably, the assembly cavity comprises a power output shaft assembly region for receiving at least part of the power output shaft gear and the power output shaft and an oil pump assembly region for receiving the oil pump.

Preferably, the intermediate housing member includes a base plate, and at least part of the oil pump assembly area is located between a lower edge of the power take-off shaft gear and the base plate.

Preferably, the intermediate case member further includes a front side plate extending upward from the bottom plate, the front side plate, a lower edge of the power take-off shaft gear and the bottom plate defining the oil pump assembly area therebetween;

or, the middle box body piece further comprises a rear side plate extending upwards from the bottom plate, and the oil pump assembly area is defined among the rear side plate, the lower edge of the power output shaft gear and the bottom plate.

Preferably, the middle box member further includes a front side plate, a front side plate and a rear side plate, the front side plate and the rear side plate each extend upward from the bottom plate, the front side plate extends upward from the upper end of the front side plate, the front side plate and the rear side plate are opposite front and back, the bottom plate and the front side plate are opposite from top to bottom, the bottom plate, the front side plate and the rear side plate define the power output shaft assembly area and the oil pump assembly area therebetween, and the rear side plate, the lower edge of the power output shaft gear and the bottom plate define the oil pump assembly area therebetween.

Preferably, the intermediate box member comprises at least one of:

in a first mode, the bottom plate extends along the horizontal direction;

in a second mode, the front side plate extends upwards from the bottom plate along the vertical direction;

in a third mode, the rear side plate extends upwards from the bottom plate in the vertical direction;

in a fourth mode, the front coaming extends upwards in an arc shape from the upper end of the front side plate.

Preferably, the middle box body piece further comprises a back panel, and two ends of the back panel are respectively connected with the front panel and the back side panel;

the assembly cavity further comprises a motor output shaft assembly area for accommodating the motor output shaft and the motor output shaft gear, and the motor output shaft assembly area is located in a space surrounded by the rear surrounding plate.

Preferably, the back panel extends in an arc shape.

Preferably, the motor output shaft assembly region is located above the rear side of the power output shaft assembly region.

Preferably, a space for accommodating the lock mechanism protruding from the lock mechanism mounting groove portion is formed above the dash panel and in front of the back panel.

Preferably, the assembly cavity further comprises a countershaft assembly region for receiving a countershaft and a countershaft drive gear, the countershaft assembly region being located between the motor output shaft assembly region and the power output shaft assembly region.

Preferably, the intermediate shaft assembly region and the oil pump assembly region are configured such that projections of the oil pump and the intermediate shaft in the vertical direction at least partially coincide.

Preferably, the extending direction of the front side plate is perpendicular to the extending direction of the bottom plate, and a hanging mounting structure is arranged at a part of the front side plate opposite to the lower edge of the power output shaft gear.

Preferably, the suspension mounting structure comprises an inner mounting structure protruding towards the lower edge of the power take-off shaft gear.

Preferably, the suspension mounting structure comprises an outer mounting structure protruding outwards of the assembly cavity, and a first threaded mounting hole is formed in the outer mounting structure.

Preferably, the side wall of the middle box body adjacent to the locking mechanism mounting groove is provided with a first reinforcing rib.

Preferably, the middle box member is provided with second reinforcing ribs extending between both side end surfaces, and a part of the second reinforcing ribs are arranged to intersect with the first reinforcing ribs.

Preferably, the power assembly box further comprises a first side box piece and a second side box piece which are respectively arranged on two sides of the middle box piece, wherein the first side box piece is used for accommodating the first motor, and the second side box piece is used for accommodating the second motor.

Preferably, one end of the first side box member, which is far away from the middle box member, is provided with a first motor end cover, and one end of the second side box member, which is far away from the middle box member, is provided with a second motor end cover.

Preferably, the first motor end cover, the first side box body piece, the middle box body piece, the second side box body piece and the second motor end cover are provided with mounting surfaces on two opposite abutting surfaces, and the mounting surfaces are provided with second threaded mounting holes.

A second aspect of the utility model provides a powertrain.

The power assembly comprises two power output shafts, a locking mechanism and a power assembly box body according to any one of the above, at least part of the two power output shafts is arranged in the assembly cavity, the locking mechanism is arranged in the locking mechanism mounting groove, and the locking mechanism is used for power coupling of the two power output shafts.

A third aspect of the utility model provides a vehicle comprising a powertrain as described above.

Drawings

FIG. 1 is a schematic view of the overall structure of a powertrain housing provided by the present utility model;

FIG. 2 is a schematic view of the overall structure of FIG. 1 during use;

FIG. 3 is a schematic top view of the structure of FIG. 1;

fig. 4 is a schematic diagram of the structure of fig. 1.

Description of the reference numerals

1. An intermediate case member; 101. a locking mechanism mounting groove; 102. a mounting platform; 103. a bottom plate; 104. a front side plate; 105. a rear side plate; 106. a dash panel; 107. a back panel; 108. a first threaded mounting hole; 2. a power output shaft; 3. a locking mechanism; 4. a partition member; 401. a power output shaft mounting hole; 402. a third reinforcing rib; 5. a power output shaft assembly area; 6. an oil pump assembly area; 7. the motor output shaft assembly area; 8. an intermediate shaft assembly region; 9. a first reinforcing rib; 10. a second reinforcing rib; 11. a first side case member; 12. a second side case member; 13. a first motor end cap; 14. a second motor end cap; 15. a mounting surface; 1501. a second threaded mounting hole; 16. a first motor assembly; 17. a second motor assembly.

Detailed Description

Embodiments of the present utility model are described in further detail below with reference to the accompanying drawings and examples. The following detailed description of the embodiments and the accompanying drawings are provided to illustrate the principles of the utility model and are not intended to limit the scope of the utility model, which may be embodied in many different forms and not limited to the specific embodiments disclosed herein, but rather to include all technical solutions falling within the scope of the claims.

These embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the utility model to those skilled in the art. It should be noted that: the relative arrangement of parts and steps, the composition of materials, numerical expressions and numerical values set forth in these embodiments should be construed as exemplary only and not limiting unless otherwise specifically stated.

In the description of the present utility model, unless otherwise indicated, the meaning of "plurality of" means greater than or equal to two; the terms "upper," "lower," "left," "right," "inner," "outer," and the like are merely used for convenience in describing the present utility model and to simplify the description, and do not denote or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the present utility model. When the absolute position of the object to be described is changed, the relative positional relationship may be changed accordingly.

Furthermore, the use of the terms first, second, and the like in the present application are not used for any order, quantity, or importance, but rather are used for distinguishing between different parts. The "vertical" is not strictly vertical but is within the allowable error range. "parallel" is not strictly parallel but is within the tolerance of the error. The word "comprising" or "comprises" and the like means that elements preceding the word encompass the elements recited after the word, and not exclude the possibility of also encompassing other elements.

It should also be noted that, in the description of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model can be understood as appropriate by those of ordinary skill in the art. When a particular device is described as being located between a first device and a second device, there may or may not be an intervening device between the particular device and either the first device or the second device.

All terms used herein have the same meaning as understood by one of ordinary skill in the art to which the present utility model pertains, unless specifically defined otherwise. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods, and apparatus should be considered part of the specification.

As shown in fig. 1 to 4, the present utility model provides a power assembly housing, which includes a middle housing part 1, an assembly cavity is formed in the middle housing part 1, the assembly cavity is used for accommodating at least part of two power output shafts 2, a locking mechanism mounting groove 101 for mounting a locking mechanism 3 is formed on the middle housing part 1, and the locking mechanism 3 is used for coupling the two power output shafts.

In an alternative embodiment of the present utility model, a partition member 4 for partitioning the assembly cavity into a left cavity and a right cavity is provided in the middle part of the middle box member 1, and a power output shaft mounting hole 401 is provided on the further partition member 4, and the power output shaft mounting hole 401 communicates with the locking mechanism mounting groove 101, so that the locking mechanism 3 couples two power output shafts respectively located in the left cavity and the right cavity. In order to ensure the structural strength of the partition member 4, a third reinforcing rib 402 is provided on the outer periphery of the power output shaft mounting hole 401 along the radial direction thereof, so as to improve the structural strength of the middle case member 1 and reduce the vibration generated by the power assembly case due to the operation of the motor or the output shaft rotating wheel during the use process.

In an alternative embodiment of the present utility model, the middle box 1 is provided with a mounting platform 102 recessed toward the direction of the assembly cavity, the locking mechanism mounting groove 101 is provided on the mounting platform 102, in order to facilitate the position fixing of the locking mechanism 3 on the mounting platform 102, the mounting platform 102 is provided with a locking mechanism threaded mounting hole near the periphery of the locking mechanism mounting groove 101, so that the locking mechanism 3 is fixed on the mounting platform 102 through bolts.

In an alternative embodiment of the utility model, the assembly cavity comprises a power take-off shaft assembly region 5 and an oil pump assembly region 6, the power take-off shaft assembly region 5 being adapted to receive at least part of the output shaft gear and the power take-off shaft, and the oil pump assembly region 6 being adapted to receive the oil pump. In a further alternative embodiment of the utility model, the intermediate housing part 1 comprises a bottom plate 103, with at least part of the oil pump assembly area 6 being located between the lower edge of the power take-off gear and the bottom plate 103, with which part the oil pump is mounted and arranged in a connection line which facilitates the input and output of the oil pump while omitting the oil pump enclosure.

In an alternative embodiment of the utility model, the intermediate housing part 1 comprises a front side plate 104 extending upwardly from a bottom plate 103, the front side plate 104, the lower edge of the power take-off gear and the bottom plate 103 defining an oil pump assembly area 6 therebetween; alternatively, the intermediate housing member 1 further includes a rear side plate 105 extending upward from the bottom plate 103, and an oil pump assembly area 6 is defined between the rear side plate 105, a lower edge of the power take-off shaft gear, and the bottom plate 103. Because the power output shaft gear is circular, the oil pump can be arranged by utilizing a triangle-like area enclosed between the bottom plate 103, the lower edge of the power output shaft gear and the front side plate 104 or the rear side plate 105, so that the installation of parts of the assembly cavity is more centralized and reasonable, and the space utilization rate of the assembly cavity is improved.

In the preferred embodiment of the present utility model, in order to secure the fitting space of the power output shaft fitting area 5 and the oil pump fitting area 6, the intermediate case member 1 includes a front side plate 104, a dash panel 106 and a rear side plate 105, the front side plate 104 and the rear side plate 105 each extend upward from the bottom plate 103, the front side plate 104 and the rear side plate 105 are opposed to each other in front-rear direction, the bottom plate 103 and the dash panel 106 are opposed to each other in top-bottom direction, the power output shaft fitting area 5 and the oil pump fitting area 6 are defined between the bottom plate 103, the front side plate 104, the dash panel 106 and the rear side plate 105, and the oil pump fitting area 6 is defined between the rear side plate 105, the lower edge of the power output shaft gear and the bottom plate 103.

In summary, the oil pump assembly area 6 provided by the present utility model may be disposed in the assembly cavity near the front side plate 104 or the rear side plate 105, or may be formed by enclosing the front side plate 104, the line edge of the power output shaft gear, the bottom plate 103 and the rear side plate 105 together, and the location of the specific oil pump assembly area 6 in the assembly cavity may be adjusted according to the actual production and use requirements.

In an alternative embodiment of the utility model, the floor 103 extends in a horizontal direction, which facilitates both the placement of the powertrain housing on the vehicle and the placement of the oil pump and other components by forming a delta-like region with the lower edge of the power take-off gear to form the oil pump mounting area 6. The front side plate 104 and the bottom plate 103 extend vertically upward, the rear side plate 105 extends vertically upward from the bottom plate 103, and the dash panel 106 extends arcuately upward from the upper end of the front side plate 104. The above-mentioned structure sets up the configuration space in the power take off shaft assembly district 5 and the oil pump assembly district 6 of the intermediate box spare 1 that forms and more is convenient for the setting of power take off shaft, power take off shaft gear and oil pump, and the intermediate box spare 1 of being convenient for fixed mounting in the automobile body.

In an alternative embodiment of the utility model, the intermediate housing part 1 comprises a back panel 107, the back panel 107 having opposite ends respectively connected to the front panel 106 and the back side panel 105, and the assembly chamber further comprises a motor output shaft assembly area 7 for accommodating a motor output shaft and a motor output shaft gear, the motor output shaft assembly area 7 being located in a space surrounded by the back panel 107. The enclosing area of the back panel 107 can be selectively adjusted according to the type and size of the motor. In a further alternative embodiment, the back panel 107 extends in an arc to accommodate the outer contour of the motor mounting structure.

In an alternative embodiment of the utility model, the motor output shaft assembly area 7 is located above the rear side of the power output shaft assembly area 5, so as to shorten the longitudinal length or vertical height of the power assembly box, thereby improving the arrangement and installation tightness of the parts of the power assembly box. The space for accommodating the protruding locking mechanism mounting groove 101 portion of the locking mechanism 3 is formed above the dash panel 106 and in front of the rear panel 107, thereby integrating the structure of the power assembly and reducing the structural space of the power assembly as a whole.

In an alternative embodiment of the utility model, the assembly cavity further comprises an intermediate shaft assembly area 8 for accommodating the intermediate shaft and the intermediate shaft transmission gear, wherein the intermediate shaft assembly area 8 is positioned between the motor output shaft assembly area 7 and the power output shaft assembly area 5, so that the centralized layout of all parts in the assembly cavity is further improved while the linkage operation of all parts is ensured, the utilization rate of the assembly box is improved, and the whole volume of the power assembly box is reduced. In a further alternative embodiment of the utility model, the intermediate shaft assembly area 8 and the oil pump assembly area 6 are arranged so that the projections of the oil pump and the intermediate shaft in the vertical direction are at least partially overlapped, thereby further reducing the occupied area of the power assembly box body along the length direction of the vehicle body and facilitating the adjustment of the overall position of the power assembly.

In an alternative embodiment of the present utility model, the eye direction of the front side plate 104 and the extending direction of the bottom plate 103 are perpendicular to each other, and a portion of the front side plate 104 opposite to the lower edge of the power take-off shaft gear is provided with a hanging mounting structure including an inner mounting structure protruding toward the lower edge of the power take-off shaft gear, and further including an outer mounting structure protruding toward the outside of the assembly chamber, and a first screw mounting hole 108 is provided in the outer mounting structure to facilitate connection of the intermediate case member 1 to the vehicle body structure by means of a bolt. The structure of the middle box body piece 1 between the front side plate 104, the lower edge of the power output shaft gear and the bottom plate 103 is utilized to set a suspension mounting structure, so that the structure has enough mounting space and structural volume, and the space utilization rate and structural strength of the power assembly box body are improved.

In an alternative embodiment of the present utility model, a plurality of first reinforcing ribs 9 are provided in the assembly cavity, and the first reinforcing ribs 9 may be provided to improve rigidity and stability of the overall structure of the powertrain case. The first reinforcing ribs 9 may be provided according to actual needs. In a further alternative embodiment of the utility model, the intermediate box member 1 is provided with second stiffening ribs 10 extending between the end faces of the two sides, part of the second stiffening ribs 10 being arranged crosswise to the first stiffening ribs 9, thereby further improving the structural strength of the intermediate box member 1.

In an alternative embodiment of the utility model, the power assembly housing further comprises a first side housing part 11 and a second side housing part 12 arranged on both sides of the middle housing part 1, respectively, the first side housing part 11 is used for accommodating a first motor, the second side housing part 12 is used for accommodating a second motor, one end of the first side housing part 11, which is far away from the middle housing part 1, is provided with a first motor end cover 13, and one end of the second side housing part 12, which is far away from the middle housing part 1, is provided with a second motor end cover 14. In order to facilitate connection between adjacent motor end caps 13, first side housing member 11, intermediate housing member 1, second side housing member 12, and second motor end cap 14 in an alternative embodiment of the utility model, each of the opposing abutment surfaces is provided with a mounting surface 15, and mounting surface 15 is provided with a second threaded mounting hole 1501, in a further alternative embodiment of the utility model.

In some alternative embodiments of the present utility model, as shown in fig. 4, the power assembly includes a first motor assembly 16 and a second motor assembly 17, the first motor assembly 16 is disposed in a region formed by the first motor end cover 13, the first side case member 11, and the side of the intermediate case member 1 adjacent to the first side case member 11, and the first motor assembly 16 includes a first motor; the second motor assembly 17 is disposed in an area defined by engineering the second motor end cap 14, the second side case member 12, and the side of the intermediate case member 1 adjacent to the second side case member 12. The motor output shafts of the first motor assembly 16 and the second motor assembly 17 extend into the motor output shaft assembly region 7, respectively, and the second motor assembly 17 comprises a second motor. Furthermore, the intermediate housing part 1 may also define a power take-off shaft assembly region 5 located below the longitudinal sides of the motor take-off shaft assembly region 7, the power assembly may comprise a transmission device and a power take-off shaft 2 extending at least partly within the power take-off shaft assembly region 5, the motor take-off shaft of the first motor assembly 16 and the motor take-off shaft of the second motor assembly 17 may transmit power to the power take-off shaft 2 via the transmission device.

Specifically, the first motor assembly 16 and the second motor assembly 17 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 member 1 may be further provided with a lock mechanism 3 that locks or releases a transmission path from the first motor assembly 16 to the left wheel W1 and a transmission path from the second motor assembly 17 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 assembly 16 and the second motor assembly 17.

The utility model provides a power assembly, which comprises an output gear, a power output shaft 2, a locking mechanism 3 and a power assembly box body according to any one of the above, wherein the power output shaft gear and the power output shaft 2 are arranged in two groups and are respectively arranged in a left cavity and a right cavity of the power assembly box body, and the locking mechanism 3 is arranged in a locking mechanism mounting groove 101 of the power assembly box body.

According to the power assembly provided by the utility model, the assembly cavity for accommodating at least part of the two power output shafts is formed in the middle box piece of the power assembly box, and the locking mechanism mounting groove for mounting the locking mechanism is formed in the middle box piece so as to be used for carrying out power coupling on the two power output shafts, so that synchronous operation of the two power output shafts positioned at the left side and the right side of the assembly cavity under the action of the locking mechanism is realized, the power output of the power assembly is improved, and the technical problem that the motor and the wheel rotating shaft are linked by adopting the left wheel and the right wheel to be respectively connected with different power output shafts in the existing four-wheel independent driving automobile technology is solved, and the problem that a certain wheel cannot climb or get out of order smoothly due to insufficient power when being suspended or slipped is easily solved. Meanwhile, the locking mechanism mounting groove of the locking mechanism is formed in the middle box body piece, so that the locking mechanism has higher integration level.

The present utility model provides a vehicle comprising a powertrain according to the above.

According to the vehicle provided by the utility model, the assembly cavity for accommodating at least part of the two power output shafts is formed in the middle box piece of the power assembly box of the power assembly of the vehicle, and the locking mechanism mounting groove for mounting the locking mechanism is formed in the middle box piece for carrying out power coupling on the two power output shafts, so that synchronous operation of the two power output shafts positioned at the left side and the right side of the assembly cavity under the action of the locking mechanism is realized, the power output of the power assembly is improved, and the technical problem that the motor and the wheel rotating shaft are linked by adopting the left wheel and the right wheel to be respectively connected with different power output shafts in the existing four-wheel independent driving automobile technology is solved, and the problem that a certain wheel cannot climb or get trapped smoothly due to insufficient power when being suspended or slipped is easily solved. Meanwhile, the locking mechanism mounting groove of the locking mechanism is formed in the middle box body piece, so that the locking mechanism has higher integration level.

Thus, various embodiments of the present utility model have been described in detail. In order to avoid obscuring the concepts of the utility model, some details known in the art have not been described. How to implement the solutions disclosed herein will be fully apparent to those skilled in the art from the above description.

While certain specific embodiments of the utility model have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the utility model. It will be understood by those skilled in the art that the foregoing embodiments may be modified and equivalents substituted for elements thereof without departing from the scope and spirit of the utility model. In particular, the technical features mentioned in the respective embodiments may be combined in any manner as long as there is no structural conflict.

Claims

1. The utility model provides a power assembly box, its characterized in that, power assembly box includes middle box spare (1), form the assembly cavity in middle box spare (1), the assembly cavity is used for holding two at least part of power output shaft (2), be equipped with on middle box spare (1) and be used for installing locking mechanism mounting groove (101) of locking mechanism (3), wherein, locking mechanism (3) are used for two power output shaft (2) carry out power coupling.

2. A power assembly box according to claim 1, characterized in that the middle part of the middle box part (1) is provided with a partition (4) for partitioning the assembly cavity into a left side cavity and a right side cavity.

3. The powertrain housing according to claim 2, wherein the partition (4) is provided with a power output shaft mounting hole (401), and the power output shaft mounting hole (401) communicates with the lock mechanism mounting groove (101).

4. A powertrain housing according to claim 3, characterized in that the outer periphery of the power take-off shaft mounting hole (401) is provided with a third reinforcing rib (402) along its radial direction.

5. The powertrain box according to claim 1, wherein the intermediate box member (1) is provided with a mounting platform (102) recessed toward the assembly cavity, and the locking mechanism mounting groove (101) is provided on the mounting platform (102).

6. The powertrain housing of claim 1, wherein the assembly cavity includes a power output shaft assembly region (5) and an oil pump assembly region (6), the power output shaft assembly region (5) for receiving at least a portion of a power output shaft gear and a power output shaft, and the oil pump assembly region (6) for receiving an oil pump.

7. A powertrain housing according to claim 6, characterized in that the intermediate housing part (1) comprises a bottom plate (103), at least part of the oil pump mounting area (6) being located between the lower edge of the power take-off gear and the bottom plate (103).

8. The powertrain housing according to claim 7, wherein the intermediate housing piece (1) further includes a front side plate (104) extending upward from the bottom plate (103), the front side plate (104), a lower edge of the power take-off gear, and the bottom plate (103) defining the oil pump assembly area (6) therebetween;

or, the middle box body (1) further comprises a rear side plate (105) extending upwards from the bottom plate (103), and the oil pump assembly area (6) is defined among the rear side plate (105), the lower edge of the power output shaft gear and the bottom plate (103).

9. The power assembly box according to claim 7, wherein the intermediate box member (1) further includes a front side plate (104), a front side plate (106) and a rear side plate (105), the front side plate (104) and the rear side plate (105) each extend upward from the bottom plate (103), the front side plate (106) extends upward from an upper end of the front side plate (104), the front side plate (104) and the rear side plate (105) are opposed front to back, the bottom plate (103) and the front side plate (106) are opposed from top to bottom, the bottom plate (103), the front side plate (104), the front side plate (106) and the rear side plate (105) define therebetween the power output shaft assembly area (5) and the oil pump assembly area (6), and the rear side plate (105), a lower edge of the power output shaft gear and the bottom plate (103) define therebetween the oil pump assembly area (6).

10. The powertrain housing according to claim 9, wherein the intermediate housing part (1) comprises at least one of:

in one mode, the bottom plate (103) extends along the horizontal direction;

in a second mode, the front side plate (104) extends upwards from the bottom plate (103) along the vertical direction;

in a third mode, the rear side plate (105) extends upward from the bottom plate (103) in a vertical direction;

in a fourth mode, the dash panel (106) extends upward in an arc shape from the upper end of the front side panel (104).

11. The powertrain case according to claim 9, wherein the intermediate case member (1) further includes a back panel (107), both ends of the back panel (107) being connected to the front panel (106) and the back side panel (105), respectively;

the assembly cavity further comprises a motor output shaft assembly area (7) for accommodating a motor output shaft and a motor output shaft gear, and the motor output shaft assembly area (7) is located in a space surrounded by the back panel (107).

12. The powertrain housing of claim 11, wherein the back panel (107) extends in an arc shape.

13. A powertrain housing according to claim 11, characterized in that the motor output shaft assembly area (7) is located above the rear side of the power output shaft assembly area (5).

14. The powertrain case according to claim 13, wherein a space for accommodating a portion of the lock mechanism (3) protruding from the lock mechanism mounting groove (101) is formed above the dash panel (106) and in front of the rear panel (107).

15. The powertrain housing of claim 11, wherein the mounting cavity further includes a countershaft mounting area (8) for receiving a countershaft and a countershaft drive gear, the countershaft mounting area (8) being located between the motor output shaft mounting area (7) and the power output shaft mounting area (5).

16. The powertrain housing according to claim 15, characterized in that the intermediate shaft assembly region (8) and the oil pump assembly region (6) are configured such that the projections of the oil pump and the intermediate shaft in the vertical direction at least partially coincide.

17. The powertrain housing according to claim 8, wherein the extending direction of the front side plate (104) and the extending direction of the bottom plate (103) are perpendicular to each other, and a portion of the front side plate (104) opposite to the lower edge of the power output shaft gear is provided with a hanging mounting structure.

18. The locomotion assembly kit of claim 17, wherein the suspension mounting structure comprises an inner mounting structure protruding towards the lower edge of the pto shaft gear.

19. The locomotion assembly kit of claim 18, wherein the suspension mounting structure comprises an outer mounting structure protruding outwards of the assembly cavity, the outer mounting structure having a first threaded mounting hole (108) provided therein.

20. A powertrain housing according to claim 5, wherein the intermediate housing member (1) is provided with a first reinforcing rib (9) adjacent to a side wall of the locking mechanism mounting groove (101).

21. A power pack case according to claim 20, wherein the intermediate case member (1) is provided with second reinforcing ribs (10) extending between both side end surfaces, a part of the second reinforcing ribs (10) being disposed so as to intersect with the first reinforcing ribs (9).

22. The powertrain housing according to claim 1, further comprising a first side housing part (11) and a second side housing part (12) provided on both sides of the intermediate housing part (1), respectively, the first side housing part (11) being adapted to accommodate a first motor and the second side housing part (12) being adapted to accommodate a second motor.

23. The powertrain housing according to claim 22, characterized in that an end of the first side housing part (11) remote from the intermediate housing part (1) is provided with a first motor end cap (13), and an end of the second side housing part (12) remote from the intermediate housing part (1) is provided with a second motor end cap (14).

24. The powertrain housing of claim 23, wherein the first motor end cover (13), the first side housing member (11), the middle housing member (1), the second side housing member (12), and the second motor end cover (14) are provided with mounting surfaces (15) on abutting surfaces that are opposite to each other, and the mounting surfaces (15) are provided with second threaded mounting holes (1501).

25. A power assembly comprising two power output shafts, a locking mechanism and a power assembly box according to any one of claims 1 to 24, at least part of the two power output shafts being arranged in the assembly cavity, the locking mechanism being arranged in the locking mechanism mounting groove, the locking mechanism being arranged to power couple the two power output shafts.

26. A vehicle comprising the powertrain of claim 25.