Powertrain system

Abstract

The application relates to a power assembly system, which comprises a mounting bracket, a motor arranged on the mounting bracket, the motor having a first output shaft and a wiring structure for connecting a cable, a transfer case arranged on the mounting bracket and fixedly connected with the motor, the transfer case having an input shaft, the first output shaft being drivingly connected with the input shaft, a guide structure arranged on the mounting bracket, and one end of the cable connected with the wiring structure being guided with the guide structure so as to extend along a preset direction range. Through the technical scheme, the problems that the motor and the transfer case are prone to loosening, the cable connected with the motor is prone to unconstrained swinging, and the reliability of the power assembly system is affected can be solved.

Description

Technical Field

[0001] This application relates to the field of powertrain technology, and in particular to powertrain systems. Background Technology

[0002] With the rapid development of new energy vehicle technology, the application of electric powertrain systems in commercial vehicles and special-purpose vehicles is becoming increasingly widespread. To meet the multi-load drive requirements of the vehicle, more and more electric vehicles' powertrain systems use transfer cases to distribute the motor output torque to components such as the axle and hydraulic power pump, so as to achieve coordinated operation of the driving and working devices.

[0003] In related technologies, in the layout structure of the powertrain system of electric vehicles, the motor and the transfer case are mainly connected through the output end of the motor and the input end of the transfer case. Road impacts and vibrations during vehicle operation can easily cause the motor and transfer case to loosen. The significant difference in vibration frequencies between the motor and the transfer case can easily lead to damage to the shaft systems of the motor and the transfer case. Furthermore, if the motor becomes loose, the cables connected to the motor are prone to unrestrained swinging, which can lead to fatigue bending, poor contact, or intermittent connections in the cables, affecting the reliability of the powertrain system. Utility Model Content

[0004] Therefore, it is necessary to provide a powertrain system that addresses the problems of easy loosening of the motor and transfer case, which can easily lead to damage to the shaft system of the motor and transfer case, and the easy unrestrained swinging of the cables, affecting the reliability of the powertrain system.

[0005] A powertrain system comprising:

[0006] Mounting bracket;

[0007] The motor is mounted on a mounting bracket and has a first output shaft and a wiring structure for connecting cables.

[0008] The transfer case is mounted on a mounting bracket and fixedly connected to the motor. The transfer case has an input shaft and a first output shaft that is drivenly connected to the input shaft.

[0009] The guide structure is installed on the mounting bracket. One end of the cable connected to the wiring structure is guided and matched with the guide structure so that the end of the cable connected to the wiring structure extends within a preset direction range.

[0010] In one embodiment, the guide structure includes:

[0011] The first guide hole is used for cable insertion. The first guide hole is positioned opposite to the wiring structure and extends along the distribution direction from the wiring structure to the first guide hole.

[0012] In one embodiment, the mounting bracket includes:

[0013] The main body, motor, and transfer case are all mounted on the main body.

[0014] A first guide portion is disposed on the body portion and is detachably connected to the body portion. At least one of the body portion and the first guide portion is provided with a first recess, so that a first guide hole is formed after the first guide portion and the body portion are connected.

[0015] In one embodiment, the wiring structure is located at the end of the motor away from the first output shaft, the wiring structure and the first guide hole are located on the same side of the motor, the first guide hole is disposed opposite to the wiring structure along the first direction, and the first guide hole is disposed on the side of the wiring structure close to the first output shaft, the first direction is parallel to the axial direction of the first output shaft.

[0016] In one embodiment, the guide structure further includes:

[0017] The second guide hole is used for cable passage. The second guide hole and the first guide hole are located on the same side of the motor and along the first direction. The second guide hole is located on the side of the first guide hole away from the wiring structure. The second guide hole extends along the second direction, and the second direction has an angle with the first direction.

[0018] In one embodiment, the mounting bracket includes:

[0019] The main body, motor, and transfer case are all mounted on the main body.

[0020] A second guide portion is disposed on the main body portion and is detachably connected to the main body portion. At least one of the main body portion and the second guide portion is provided with a second recess, so that a second guide hole is formed after the second guide portion and the main body portion are connected.

[0021] In one embodiment, the mounting bracket is arranged to form a threading cavity, and the mounting bracket also has a wire inlet and a wire outlet, which are respectively connected to the threading cavity.

[0022] In one embodiment, at least a portion of the guide structure is disposed at the inlet; and / or, at least a portion of the guide structure is disposed within the threading cavity; and / or, at least a portion of the guide structure is disposed at the outlet.

[0023] In one embodiment, the powertrain system further includes:

[0024] The first fastening part allows the motor and the mounting bracket to be detachably connected via the first fastening part;

[0025] The second fastening part allows the transfer case and the mounting bracket to be detachably connected.

[0026] In one embodiment, the powertrain system further includes:

[0027] The first flange is located at the end of the motor near the transfer case, and the first flange is circumferentially arranged on the outside of the first output shaft;

[0028] The second flange is located at the end of the transfer case near the motor. The second flange is circumferentially arranged on the outside of the input shaft and is positioned opposite to the first flange.

[0029] The first flange and the second flange are connected by the third fastening part.

[0030] In the aforementioned powertrain system, both the motor and transfer case are mounted on mounting brackets. This arrangement allows the mounting brackets to serve as the foundation for both the motor and transfer case. When road impacts and vibrations are transmitted to the powertrain system during vehicle operation, it reduces independent swaying of the motor and transfer case. Simultaneously, the mounting brackets also provide shock resistance, ensuring that the vibration frequencies of the motor and transfer case are more aligned, reducing the likelihood of loose connections between the motor and transfer case, and minimizing damage to the shaft systems of both components, thus improving the reliability and stability of power transmission. Furthermore, the guide structure directs the cables connected to the wiring structure, ensuring that the end of the cable connected to the wiring structure extends within a predetermined direction. This design reduces unrestrained swaying of the cable due to motor vibration or external forces, preventing fatigue bending, poor contact, or intermittent connections, further enhancing the reliability of the powertrain system. Attached Figure Description

[0031] Figure 1 A first-person view structural diagram of the powertrain system;

[0032] Figure 2 This is the front view of the motor;

[0033] Figure 3 This is a schematic diagram of the transfer case.

[0034] Figure 4 This is a structural diagram of the mounting bracket;

[0035] Figure 5 This is a structural schematic diagram of the powertrain system from a second-view perspective.

[0036] Explanation of reference numerals in the attached figures:

[0037] 10. Mounting bracket; 101. Cable threading chamber; 102. Cable inlet; 103. Cable outlet;

[0038] 11. Main body; 111. First mounting plate; 112. Second mounting plate; 113. First reinforcing plate; 1131. First end plate; 114. Second reinforcing plate;

[0039] 12. First guide section; 13. Second guide section;

[0040] 20. Motor; 201. Wiring structure; 21. First output shaft; 22. Junction box;

[0041] 30. Transfer case; 31. Input shaft; 32. Second output shaft; 33. Third output shaft;

[0042] 40. Guide structure; 41. First guide hole; 42. Second guide hole;

[0043] 50. First fastening part;

[0044] 60. Second fastening part;

[0045] 71. First flange; 72. Second flange; 73. Third fastener. Detailed Implementation

[0046] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0047] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0048] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0049] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0050] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0051] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0052] See Figures 1 to 3 A powertrain system includes a mounting bracket 10, a motor 20, a transfer case 30, and a guide structure 40. The motor 20 is mounted on the mounting bracket 10 and has a first output shaft 21 and a wiring structure 201 for connecting cables. The transfer case 30 is mounted on the mounting bracket 10 and fixedly connected to the motor 20. The transfer case 30 has an input shaft 31, and the first output shaft 21 is drivenly connected to the input shaft 31. The guide structure 40 is mounted on the mounting bracket 10, and one end of the cable connected to the wiring structure 201 is guided and engaged with the guide structure 40 to extend the cable connected to the wiring structure 201 within a predetermined direction.

[0053] In the aforementioned powertrain system, both the motor 20 and the transfer case 30 are mounted on the mounting bracket 10. This arrangement allows the mounting bracket 10 to simultaneously serve as the mounting base for both the motor 20 and the transfer case 30. When road impacts and vibrations are transmitted to the powertrain system during vehicle operation, it reduces the independent swaying of the motor 20 and the transfer case 30. Simultaneously, the mounting bracket 10 also provides impact resistance, ensuring that the vibration frequencies of the motor 20 and the transfer case 30 are more consistent, reducing the likelihood of loose connections between the motor 20 and the transfer case 30, and minimizing damage to the shaft systems of the motor 20 and the transfer case 30, thus improving the reliability and stability of power transmission. Furthermore, the guide structure 40 guides the cable connected to the wiring structure 201, ensuring that the end of the cable connected to the wiring structure 201 extends within a predetermined direction. This arrangement reduces unrestrained swaying of the cable due to motor 20 vibration or external forces, preventing fatigue bending, poor contact, or intermittent connections, further enhancing the reliability of the powertrain system.

[0054] It is understood that in this application, the guide structure 40 guides the cable to extend along a preset directional range, so that the end of the cable connected to the wiring structure 201 is guided and constrained by the guide structure 40, preventing the cable from swinging beyond the preset directional range.

[0055] In some embodiments, the guide structure 40 includes a first guide hole 41 for cable passage. The first guide hole 41 is disposed opposite to the wiring structure 201 and extends along the distribution direction from the wiring structure 201 to the first guide hole 41. This arrangement minimizes bending at the connection point between the cable and the wiring structure 201, improving the reliability of the connection. Furthermore, the first guide hole 41 has a simple structure and reduces the likelihood of the cable wobbling at the connection point under external force, thus reducing the possibility of loosening.

[0056] In some embodiments, the diameter of the first guide hole 41 is larger than the diameter of the cable. Specifically, the difference between the diameter of the first guide hole 41 and the diameter of the cable is less than 2 mm. This configuration improves the stability of the cable constraint and reduces or avoids cable wear caused by the wall of the first guide hole 41.

[0057] See Figure 1 and Figure 4The mounting bracket 10 includes a body portion 11 and a first guide portion 12. The motor 20 and the transfer case 30 are both mounted on the body portion 11. The first guide portion 12 is mounted on the body portion 11 and detachably connected to it. At least one of the body portion 11 and the first guide portion 12 has a first recess, so that the first guide portion 12 and the body portion 11 form a first guide hole 41 after connection. Both ends of the cable are typically provided with connector components. One connector component connects to the wiring structure 201, and the other connector component is used to connect to the power supply or control unit. The arrangement of the first guide portion 12 and the body portion 11 eliminates the need for the connector component to pass through the first guide hole 41 during cable installation. That is, the size of the connector component does not need to be considered; only the size of the first guide hole 41 needs to be compatible with the cable size. This arrangement prevents the first guide hole 41 from being excessively large, thus avoiding a weakening of the guiding effect on the cable.

[0058] See Figure 1 and Figure 2 The wiring structure 201 is located at the end of the motor 20 furthest from the first output shaft 21. The wiring structure 201 and the first guide hole 41 are located on the same side of the motor 20. Along a first direction, the first guide hole 41 and the wiring structure 201 are spaced apart, and the first guide hole 41 is located on the side of the wiring structure 201 closest to the first output shaft 21. The first guide hole 41 extends along a first direction, which is parallel to the axial direction of the first output shaft 21. The end where the wiring structure 201 is located experiences less vibration compared to the end where the first output shaft 21 is located. This arrangement minimizes vibration of the wiring structure 201, thereby reducing the possibility of cable loosening due to vibration. Furthermore, this arrangement ensures that the end of the cable connected to the wiring structure 201 is located on one side of the motor 20, making reasonable use of the lateral space of the motor 20 and improving the structural compactness of the system. Figure 1 and Figure 2 As shown, the X direction is the first direction.

[0059] In some embodiments, a junction box 22 is provided at the end of the motor 20 away from the first output shaft 21. The junction box 22 protrudes radially outward from the outer surface of the motor 20's housing. A wiring structure 201 is provided on the end of the junction box 22 facing the first output shaft 21. This arrangement allows the wiring structure 201 to be as close as possible to the first guide hole 41, improving the structural compactness of the system.

[0060] Furthermore, the motor 20 is a three-phase motor, and the junction box 22 is provided with three wiring structures 201. There are three first guide holes 41, each corresponding to one of the three wiring structures 201. This arrangement allows the three first guide holes 41 to independently guide the three cables of the three-phase motor, reducing interference between the cables and further improving the reliability and stability of the connection between the cables and the wiring structures 201.

[0061] See Figure 1 and Figure 4 The guide structure 40 also includes a second guide hole 42 for cable passage. The second guide hole 42 and the first guide hole 41 are located on the same side of the motor 20 and along a first direction. The second guide hole 42 is located on the side of the first guide hole 41 away from the wiring structure 201. The second guide hole 42 extends along a second direction, which forms an angle with the first direction. The second direction can be perpendicular to the first direction. This arrangement facilitates the cable changing its extension direction after passing through the second guide hole 42 and extending laterally towards the motor 20, improving the utilization of the lateral space of the motor 20 and facilitating cable connection to an external power source or control system. Figure 4 As shown, the X direction is the first direction, and the Y direction is the second direction.

[0062] Furthermore, the number of second guide holes 42 is the same as the number of first guide holes 41, both being three. The three second guide holes 42 are spaced apart along the first direction, and each second guide hole 42 extends along the second direction. The arrangement of the second guide holes 42 is simple in structure, allowing the cable to pass through and be confined, reducing the possibility of the cable swaying under external force.

[0063] In some embodiments, the diameter of the second guide hole 42 is larger than the diameter of the cable, and the difference between the diameter of the second guide hole 42 and the diameter of the cable is less than 2 mm. This configuration can improve the stability of the cable guiding constraint and reduce or avoid the possibility of the second guide hole 42 wall abrading the cable.

[0064] Furthermore, the mounting bracket 10 also includes a second guide portion 13, which is disposed on the body portion 11 and detachably connected to it. At least one of the body portion 11 and the second guide portion 13 has a second recess, so that a second guide hole 42 is formed after the second guide portion 13 and the body portion 11 are connected. The arrangement of the second guide portion 13 and the body portion 11 eliminates the need for the connectors at both ends of the cable to pass through the second guide hole 42 during cable installation. That is, the size of the connectors does not need to be considered; only the size of the second guide hole 42 needs to be compatible with the cable size. This arrangement prevents the need to adaptively increase the size of the second guide hole 42 to accommodate larger connectors, thus avoiding a situation where an excessively large second guide hole 42 weakens the guiding effect on the cable.

[0065] Furthermore, the mounting bracket 10 encloses a cable passage cavity 101. The mounting bracket 10 also has a cable inlet 102 and a cable outlet 103, which are respectively connected to the cable passage cavity 101. This arrangement ensures that the end of the cable connected to the wiring structure 201 is located inside the cable passage cavity 101, allowing the mounting bracket 10 to protect the cable and reduce the risk of other components squeezing or abrading the cable.

[0066] In some embodiments, at least a portion of the guide structure 40 is disposed at the inlet 102; and / or, at least a portion of the guide structure 40 is disposed within the cable passage cavity 101; and / or, at least a portion of the guide structure 40 is disposed at the outlet 103. This arrangement eliminates the need for additional space to accommodate the guide structure 40, further enhancing the structural compactness of the system.

[0067] In some embodiments, the powertrain system further includes a first fastening part 50 and a second fastening part 60. The motor 20 is detachably connected to the mounting bracket 10 via the first fastening part 50; the transfer case 30 is detachably connected to the mounting bracket 10 via the second fastening part 60. The arrangement of the first fastening part 50 and the second fastening part 60 results in a simple structure and facilitates assembly and disassembly.

[0068] See Figure 1 and Figure 4The mounting bracket 10 includes a main body 11 comprising a first mounting plate 111 and two second mounting plates 112. The first mounting plate 111 extends along a second direction, and the two second mounting plates 112 are located on the same side of the first mounting plate 111, with each second mounting plate 112 connected to both ends of the first mounting plate 111. Each second mounting plate 112 extends along a first direction. The motor 20 is connected to the two second mounting plates 112 via multiple first fastening parts 50, and the transfer case 30 is connected to the first mounting plate 111 via multiple second fastening parts 60. The mounting bracket 10 also includes a first reinforcing plate 113 and a second reinforcing plate 114. Each second mounting plate 112 has a second reinforcing plate 114 on the side away from the motor 20. The second reinforcing plates 114 extend along a first direction. Multiple first reinforcing plates 113 are provided and are spaced apart along the first direction. Each first reinforcing plate 113 is connected to two second reinforcing plates 114 and / or two second mounting plates 112 at both ends. Each first reinforcing plate 113 extends along a second direction. This arrangement increases the structural strength of the body 11.

[0069] Furthermore, the first reinforcing plate 113, connected to the end of the two second reinforcing plates 114 away from the first mounting plate 111, is defined as the first end plate 1131. The first end plate 1131 is disposed opposite to the wiring structure 201, and an inlet 102 is provided on the first end plate 1131. Along the first direction, the first reinforcing plate 113 adjacent to the first end plate 1131 cooperates with the first guide portion 12 to form a first guide hole 41; wherein, the first guide portion 12 is located on the side of the first reinforcing plate 113 away from the motor 20, and a first recess is provided on the side of the first guide portion 12 and the first reinforcing plate 113 that are close to each other. The two oppositely disposed first recesses on the first guide portion 12 and the first reinforcing plate 113 together form a first guide hole 41. Along the first direction, the projection of the first guide hole 41 is located within the outline of the inlet 102. This arrangement facilitates the cable to pass directly through the first guide hole 41 after being introduced from the inlet 102, improving the neatness of the cable layout.

[0070] In some embodiments, one of the two second reinforcing plates 114 is provided with a cable outlet 103, and the second guide portion 13 passes through the cable outlet 103. The second mounting plate 112 connected to the second reinforcing plate 114 has a second recess on the side away from the motor 20 and on the side of the second guide portion 13 facing the motor 20. The second recesses on the second reinforcing plate 114 communicate with the cable outlet 103, and the two corresponding second recesses form a second guide hole 42. This arrangement allows the second guide hole 42 to guide the cable as it passes through the cable outlet 103, improving the stability and orientation of the cable when it exits the cable threading cavity 101.

[0071] See Figure 1 , Figure 3 and Figure 5 The transfer case 30 and the motor 20 are located on the same side of the mounting bracket 10, and are arranged sequentially along a first direction. The first output shaft 21 of the motor and the input shaft 31 of the transfer case 30 are coaxial and connected by a spline. Furthermore, a first flange 71 is provided at the end of the motor 20 near the transfer case 30, and the first flange 71 is arranged in a ring around the outside of the first output shaft 21. A second flange 72 is provided at the end of the transfer case 30 near the motor 20, and the second flange 72 is arranged in a ring around the outside of the input shaft 31. The system also includes a third fastening part 73, with the first flange 71 and the second flange 72 facing each other and connected by the third fastening part 73. Multiple third fastening parts 73 are provided, and the multiple third fastening parts 73 are evenly distributed circumferentially around the first flange 71 and the second flange 72. This arrangement improves the reliability of the connection between the motor 20 and the transfer case 30.

[0072] In some embodiments, along a first direction, the transfer case 30 has a first side and a second side disposed opposite to each other, the first side facing the motor 20. The first side of the transfer case 30 is also provided with at least one second output shaft 32 for connection to the power pump; the second side of the transfer case 30 is provided with a third output shaft 33 for connection to the axle. This arrangement can improve the rationality of the structural layout of the system. Figure 3 In the diagram, the X direction is the first direction.

[0073] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0074] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A powertrain system, characterized in that, include: Mounting bracket (10); A motor (20) is mounted on the mounting bracket (10), the motor (20) having a first output shaft (21) and a wiring structure (201) for connecting cables; The transfer case (30) is mounted on the mounting bracket (10) and fixedly connected to the motor (20). The transfer case (30) has an input shaft (31), and the first output shaft (21) is drivenly connected to the input shaft (31). A guide structure (40) is provided on the mounting bracket (10). One end of the cable connected to the wiring structure (201) is guided and engaged with the guide structure (40) so that the end of the cable connected to the wiring structure (201) extends along a preset direction range.

2. The powertrain system according to claim 1, characterized in that, The guide structure (40) includes: The first guide hole (41) is used for cable to pass through. The first guide hole (41) is disposed opposite to the wiring structure (201), and the first guide hole (41) extends along the distribution direction from the wiring structure (201) to the first guide hole (41).

3. The powertrain system according to claim 2, characterized in that, The mounting bracket (10) includes: The main body (11), the motor (20) and the transfer case (30) are both mounted on the main body (11); A first guide portion (12) is disposed on the body portion (11) and is detachably connected to the body portion (11). At least one of the body portion (11) and the first guide portion (12) is provided with a first recess so that the first guide portion (12) and the body portion (11) are connected to form the first guide hole (41).

4. The powertrain system according to claim 2, characterized in that, The wiring structure (201) is located at one end of the motor (20) away from the first output shaft (21). The wiring structure (201) and the first guide hole (41) are located on the same side of the motor (20). Along the first direction, the first guide hole (41) is opposite to the wiring structure (201), and the first guide hole (41) is located on the side of the wiring structure (201) close to the first output shaft (21). The first direction is parallel to the axial direction of the first output shaft (21).

5. The powertrain system according to claim 4, characterized in that, The guide structure (40) further includes: The second guide hole (42) is used for cable passage. The second guide hole (42) and the first guide hole (41) are located on the same side of the motor (20) and along the first direction. The second guide hole (42) is located on the side of the first guide hole (41) away from the wiring structure (201). The second guide hole (42) extends along the second direction, which has an angle with the first direction.

6. The powertrain system according to claim 5, characterized in that, The mounting bracket (10) includes: The main body (11), the motor (20) and the transfer case (30) are both mounted on the main body (11); The second guide portion (13) is disposed on the body portion (11) and is detachably connected to the body portion (11). At least one of the body portion (11) and the second guide portion (13) is provided with a second recess so that the second guide portion (13) and the body portion (11) are connected to form the second guide hole (42).

7. The powertrain system according to claim 1, characterized in that, The mounting bracket (10) surrounds and forms a threading cavity (101). The mounting bracket (10) also has a wire inlet (102) and a wire outlet (103), which are respectively connected to the threading cavity (101).

8. The powertrain system according to claim 7, characterized in that, At least a portion of the guide structure (40) is disposed at the inlet (102); and / or, at least a portion of the guide structure (40) is disposed within the threading cavity (101); and / or, at least a portion of the guide structure (40) is disposed at the outlet (103).

9. The powertrain system according to claim 1, characterized in that, The powertrain system also includes: The motor (20) and the mounting bracket (10) are detachably connected via the first fastening part (50); The second fastening part (60) allows the transfer case (30) and the mounting bracket (10) to be detachably connected.

10. The powertrain system according to claim 1, characterized in that, The powertrain system also includes: The first flange (71) is disposed at one end of the motor (20) near the transfer case (30), and the first flange (71) is circumferentially disposed on the outside of the first output shaft (21); The second flange (72) is disposed at one end of the transfer case (30) near the motor (20). The second flange (72) is arranged in a ring around the outside of the input shaft (31). The second flange (72) is disposed opposite to the first flange (71). The third fastening part (73) connects the second flange (72) and the first flange (71).

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