Subframe components and vehicles

Abstract

This disclosure discloses a subframe assembly and a vehicle. The subframe assembly includes a subframe, a motor controller, and a wiring harness assembly. The subframe includes a first crossbeam, a second crossbeam, a third crossbeam, and a first longitudinal beam. The first and second crossbeams are fixedly connected to a first end and a second end of the first longitudinal beam, respectively. The third crossbeam is fixedly connected to the first longitudinal beam and located between the first and second crossbeams. The motor controller is fixedly connected to the third crossbeam and has a first power supply interface on its side. The wiring harness assembly includes a first wiring harness and multiple brackets. The first wiring harness is sequentially connected to the motor controller, the first crossbeam, the first longitudinal beam, and the second crossbeam through the multiple brackets. The first wiring harness has a first connector and a second connector at both ends. The first connector is connected to the first power supply interface, and the second connector is used to connect to an external power supply interface of the vehicle. Using the technical solution of this disclosure can reduce the risk of the high-voltage wiring harness becoming loose during vehicle operation.

Description

Technical Field

[0001] This disclosure relates to the field of vehicle technology, and in particular to a subframe assembly and a vehicle. Background Technology

[0002] With the development of technology, electric vehicles have gradually become widely used. To improve the user experience, electric vehicles are now often equipped with multiple charging modes to meet different user needs.

[0003] In related technologies, during slow charging, the vehicle battery is typically powered by a power conversion module integrated within the motor controller. The motor controller is electrically connected to an external charging interface via a high-voltage wiring harness.

[0004] However, the distance between the power supply interface of the motor controller and the external charging interface of the electric vehicle is generally far, resulting in a long high-voltage wiring harness. If the high-voltage wiring harness cannot be effectively secured, it is prone to loosening during vehicle operation and damage due to friction with the ground, thus posing a high-voltage safety risk. Summary of the Invention

[0005] This disclosure provides a subframe assembly and a vehicle, which can solve the aforementioned technical problems existing in related technologies. The technical solution is as follows:

[0006] In a first aspect, a subframe assembly is provided, the subframe assembly including a subframe, a motor controller, and a wiring harness assembly;

[0007] The subframe includes a first crossbeam, a second crossbeam, a third crossbeam, and a first longitudinal beam. The first crossbeam and the second crossbeam are fixedly connected to the first end and the second end of the first longitudinal beam, respectively. The third crossbeam is fixedly connected to the first longitudinal beam and is located between the first crossbeam and the second crossbeam.

[0008] The motor controller is fixedly connected to the third crossbeam, and the side of the motor controller has a first power supply interface;

[0009] The wiring harness assembly includes a first wiring harness and multiple brackets. The first wiring harness is sequentially connected to the motor controller, the first crossbeam, the first longitudinal beam, and the second crossbeam via the multiple brackets. The two ends of the first wiring harness have a first connector and a second connector, respectively. The first connector is connected to the first power supply interface, and the second connector is used to connect to an external power supply interface of the vehicle.

[0010] In one possible implementation, the motor controller further has a second power supply interface located on the side of the first power supply interface;

[0011] The wiring harness assembly also includes a second wiring harness, which is connected to the motor controller and the first crossbeam via multiple brackets. The two ends of the second wiring harness have a third connector and a fourth connector, respectively. The third connector is connected to the second power supply interface, and the fourth connector is used for electrical connection with the vehicle air conditioner.

[0012] In one possible implementation, the plurality of brackets includes a first bracket fixed to the motor controller and located on the side of the first power supply interface away from the second power supply interface. The first bracket is used to fix the first wiring harness and the second wiring harness to support the first wiring harness and the second wiring harness.

[0013] In one possible implementation, the wire harness assembly further includes a wire harness tube sleeved on the outside of the first wire harness and the second wire harness.

[0014] In one possible implementation, the plurality of supports further includes a second support, which is fixed to the first crossbeam and fixedly connected to the cable bundle.

[0015] In one possible implementation, the second bracket has a first wire harness portion and a second wire harness portion, the first wire harness portion being located at the top of the first crossbeam and fixedly connected to the first wire harness, and the second wire harness portion being located at the side of the first crossbeam and fixedly connected to the second wire harness.

[0016] In one possible implementation, the first end of the first longitudinal beam protrudes beyond the first transverse beam;

[0017] The plurality of brackets also includes a third bracket, which is fixed to the first end and fixedly connected to the first wire harness.

[0018] In one possible implementation, the plurality of supports further includes a fifth support, which is fixed to the second crossbeam and fixedly connected to the second connector.

[0019] In one possible implementation, the wire harness assembly further includes a tube clamp fixed to the first longitudinal beam and fixedly connected to the first wire harness, the tube clamp having a bundle tube portion for fixing a liquid tube.

[0020] In a second aspect, a vehicle is provided, the vehicle including a subframe assembly provided in the first aspect and its possible implementations.

[0021] The beneficial effects of the technical solution provided in this disclosure include at least the following:

[0022] In this disclosure, the first wiring harness can be fixed to the subframe and the motor controller by multiple brackets, thereby reducing the risk of the first wiring harness coming loose during vehicle operation, and further reducing the possibility of the first wiring harness being damaged due to friction with the ground and causing high voltage safety risks.

[0023] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the structure of a subframe assembly provided in an embodiment of this disclosure;

[0026] Figure 2 This is a schematic diagram of the structure of a subframe assembly provided in an embodiment of this disclosure;

[0027] Figure 3 This is a schematic diagram of the structure of a subframe assembly provided in an embodiment of this disclosure;

[0028] Figure 4 This is a schematic diagram of the structure of a subframe assembly provided in an embodiment of this disclosure.

[0029] Figure label:

[0030] 1. Subframe; 11. First crossbeam; 12. Second crossbeam; 13. Third crossbeam; 14. First longitudinal beam; 15. Second longitudinal beam;

[0031] 2. Motor controller; 21. First power supply interface; 22. Second power supply interface;

[0032] 3. Wire harness assembly; 31. First wire harness; 311. First connector; 312. Second connector; 32. Bracket; 321. First bracket; 322. Second bracket; 3221. First wire harness section; 3222. Second wire harness section; 323. Third bracket; 324. Fourth bracket; 325. Fifth bracket; 33. Second wire harness; 331. Third connector; 332. Fourth connector; 34. Wire harness tube; 35. Tube clamp; 351. Wire harness tube section; 36. First threaded clip; 37. Interlocking connector; 38. Second threaded clip. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this disclosure clearer, the embodiments of this disclosure will be described in further detail below with reference to the accompanying drawings.

[0034] It should be noted that, unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other. This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0035] With the development of technology, electric vehicles have gradually become widely used. To improve the user experience, electric vehicles are now often equipped with multiple charging modes to meet different user needs.

[0036] In related technologies, during slow charging, the vehicle battery is typically powered by a power conversion module integrated within the motor controller. The motor controller is electrically connected to an external charging interface via a high-voltage wiring harness.

[0037] However, the distance between the power supply interface of the motor controller and the external charging interface of the electric vehicle is generally far, resulting in a long high-voltage wiring harness. If the high-voltage wiring harness cannot be effectively secured, it is prone to loosening during vehicle operation and damage due to friction with the ground, thus posing a high-voltage safety risk.

[0038] To address the aforementioned technical problems, this disclosure provides a subframe assembly, such as... Figure 1 As shown, the subframe assembly includes a subframe 1, a motor controller 2, and a wiring harness assembly 3. Figure 2 As shown, the subframe 1 includes a first crossbeam 11, a second crossbeam 12, a third crossbeam 13, and a first longitudinal beam 14. The first crossbeam 11 and the second crossbeam 12 are fixedly connected to the first end and the second end of the first longitudinal beam 14, respectively. The third crossbeam 13 is fixedly connected to the first longitudinal beam 14 and is located between the first crossbeam 11 and the second crossbeam 12. A motor controller 2 is fixedly connected to the third crossbeam 13, and the side of the motor controller 2 has a first power supply interface 21. Figure 1 , Figure 2 As shown, the wiring harness assembly 3 includes a first wiring harness 31 and multiple brackets 32. The first wiring harness 31 is connected to the motor controller 2, the first crossbeam 11, the first longitudinal beam 14 and the second crossbeam 12 in sequence through the multiple brackets 32. The two ends of the first wiring harness 31 have a first connector 311 and a second connector 312, respectively. The first connector 311 is connected to the first power supply interface 21 and the second connector 312 is used to connect to the external power supply interface of the vehicle.

[0039] In the subframe assembly disclosed in this embodiment, the first wiring harness 31 can be fixed to the subframe 1 and the motor controller 2 by multiple brackets 32, thereby reducing the risk of the first wiring harness 31 coming loose during vehicle operation, and further reducing the possibility of the first wiring harness 31 being damaged due to friction with the ground and causing high voltage safety risks.

[0040] Furthermore, in related technologies, the power supply interface on the motor controller is often located at the bottom of the motor controller. This results in the high-voltage wiring harness connected to the power supply interface being in a relatively low position, which increases the probability of the high-voltage wiring harness rubbing against the ground and causing it to break. In contrast, in this embodiment, the first power supply interface 21 is located on the side of the motor controller 2, which makes the overall height of the first wiring harness 31 higher than that of the high-voltage wiring harness in related technologies. Compared with related technologies, this reduces the possibility of the first wiring harness 31 rubbing against the ground and causing it to break, thereby further reducing the high-voltage safety risks during vehicle operation.

[0041] like Figure 2 As shown, the height of the first power supply interface 21 is higher than the height of the first crossbeam 11. In this way, the first wire harness 31 can be directly fixed to the top of the first crossbeam 11, thereby supporting the first wire harness 31 through the first crossbeam 11, which can reduce the possibility of the first wire harness 31 becoming loose and rubbing against the ground.

[0042] like Figure 1 As shown, the subframe 1 also includes a second longitudinal beam 15. The two ends of the second longitudinal beam 15 are fixedly connected to the first crossbeam 11 and the second crossbeam 12, respectively, and the middle part of the second longitudinal beam 15 is fixedly connected to the third crossbeam 13. The second longitudinal beam 15 and the first longitudinal beam 14 are located on opposite sides of each crossbeam. Furthermore, the second longitudinal beam 15 and the first longitudinal beam 14 are symmetrical, thereby ensuring that the forces on the second longitudinal beam 15 and the first longitudinal beam 14 are relatively uniform, thus improving the stability of the subframe assembly.

[0043] This disclosure does not limit the specific materials and molding methods of the multiple supports 32.

[0044] For example, multiple supports 32 are made of metal and are formed by casting.

[0045] For example, some of the supports 32 are made of metal and are formed by casting, while the other supports 32 are made of plastic and are formed by injection molding.

[0046] Optionally, the vehicle external power supply interface is located on the vehicle housing and near the second crossbeam 12, so that the second connector 312 can be electrically connected to the vehicle external power supply interface.

[0047] The motor controller 2 provided in the embodiments of this disclosure will be further described below with reference to the accompanying drawings.

[0048] In some embodiments, such as Figure 2 As shown, the motor controller 2 also has a second power supply interface 22, which is located to the side of the first power supply interface 21. The wiring harness assembly 3 also includes a second wiring harness 33, which is connected to the motor controller 2 and the first crossbeam 11 via multiple brackets 32. The two ends of the second wiring harness 33 have a third connector 331 and a fourth connector 332, respectively. The third connector 331 is connected to the second power supply interface 22, and the fourth connector 332 is used for electrical connection with the vehicle air conditioner.

[0049] In this way, the second wiring harness 33 can be fixed to the subframe 1 and the motor controller 2 by multiple brackets 32, thereby reducing the risk of the second wiring harness 33 coming loose during the vehicle's operation, and further reducing the possibility of the second wiring harness 33 being damaged due to friction with the ground, which could lead to high voltage safety risks.

[0050] Furthermore, in this embodiment, the second power supply interface 22 is located on the side of the first power supply interface 21, that is, the second power supply interface 22 is also located on the side of the motor controller 2. As a result, the overall height of the second wiring harness 33 is higher than that of the high-voltage wiring harness in the related art, thereby increasing the overall height of the second wiring harness 33 and reducing the probability of the second wiring harness 33 rubbing against the ground and causing it to break, thereby further reducing the high-voltage safety risk.

[0051] Optionally, the second wiring harness 33 is used to power the vehicle's air conditioning system.

[0052] In this embodiment, the wiring harness assembly 3 further includes an interlock connector 37, which is used to connect to the vehicle's central control system and to detect whether at least one connector in the first wiring harness 31 and the second wiring harness 33 is properly connected. This ensures a secure connection between the connector and the interface on the vehicle, thereby reducing the risk of high voltage during vehicle use.

[0053] Optionally, the interlock connector 37 has interlock terminals, and one or more of the first connector 311, second connector 312, third connector 331, and fourth connector 332 have interlock mating terminals. The interlock terminals are electrically connected to the interlock mating terminals. After the connectors are properly connected, the interlock terminals, the interlock mating terminals, and the vehicle's central control system can form a detection circuit. At this time, the vehicle's central control system sends a signal indicating that charging can begin. Thus, during vehicle charging, it can be ensured that the connectors are properly connected to the various power supply interfaces on the vehicle, thereby reducing the high-voltage risk during vehicle charging.

[0054] In some embodiments, combined with Figure 3 As shown, the plurality of brackets 32 include a first bracket 321, which is fixed to the motor controller 2 and located on the side of the first power supply interface 21 away from the second power supply interface 22. The first bracket 321 is used to fix the first wire harness 31 and the second wire harness 33 to support the first wire harness 31 and the second wire harness 33.

[0055] A first bracket 321 is provided on the side of the first power supply interface 21. The first bracket 321 supports the first wiring harness 31 and the second wiring harness 33, maintaining their fixed positions at a relatively high level to prevent them from sagging due to excessive deflection, which could lead to friction and damage with the ground and potentially cause high-voltage safety risks. Furthermore, because the first bracket 321 is located on the side of the first power supply interface 21, it can support the first wiring harness 31 and the second wiring harness 33 at a closer distance, thereby reducing the torque exerted by the weight of the first wiring harness 31 and the second wiring harness 33 on the first bracket 321, further reducing the possibility of sagging.

[0056] Optionally, the first bracket 321 is fixed to the housing of the motor controller 2.

[0057] In some embodiments, such as Figure 3 As shown, the wire harness assembly 3 also includes a wire harness tube 34, which is sleeved on the outside of the first wire harness 31 and the second wire harness 33.

[0058] In this way, the first wire harness 31 and the second wire harness 33 can be constrained by the wire harness tube 34, thereby preventing the first wire harness 31 and the second wire harness 33 from being distributed haphazardly or even tangled in other equipment. This avoids the possibility of the first wire harness 31 and the second wire harness 33 interfering with other structures.

[0059] Optionally, the wire harness tube 34 is made of an insulating material and has a certain degree of elasticity. This improves the stability of the wire harness tube 34 in restraining the first wire harness 31 and the second wire harness 33. For example, the wire harness tube 34 can be made of rubber.

[0060] In some embodiments, such as Figure 3 As shown, the multiple brackets 32 also include a second bracket 322, which is fixed to the first crossbeam 11 and is fixedly connected to the cable bundle 34.

[0061] In this way, the wire harness tube 34 can be fixed to the first crossbeam 11 by the second bracket 322, that is, the first wire harness 31 and the second wire harness 33 can be fixed to the first crossbeam 11 by the second bracket 322, thereby improving the stability of fixing the first wire harness 31 and the second wire harness 33, and further reducing the possibility of the first wire harness 31 and the second wire harness 33 becoming loose.

[0062] In some embodiments, such as Figure 4 As shown, the second bracket 322 has a first wire harness portion 3221 and a second wire harness portion 3222. The first wire harness portion 3221 is located at the top of the first crossbeam 11 and is fixedly connected to the first wire harness 31. The second wire harness portion 3222 is located on the side of the first crossbeam 11 and is fixedly connected to the second wire harness 33.

[0063] Since the first wire harness 31 and the second wire harness 33 have different orientations, two wire harness portions are provided in the second bracket 322. These two portions respectively secure the first wire harness 31 and the second wire harness 33, preventing them from becoming entangled with other structures after dispersing. Furthermore, the first wire harness portion 3221 is positioned at the top of the first crossbeam 11, allowing the first wire harness 31 to be supported by the first crossbeam 11, thus reducing the possibility of the first wire harness 31 becoming loose. Additionally, since the vehicle air conditioning power supply port is often located on the lower side near the first crossbeam 11 and away from the second crossbeam 12, the second wire harness portion 3222 is positioned on the side of the first crossbeam 11 to facilitate the fixing of any bends in the second wire harness portion 3222.

[0064] Optionally, the first wire bundle portion 3221 and the second wire bundle portion 3222 can be, for example, but not limited to, cable ties.

[0065] In some embodiments, combined with Figure 1 , Figure 4 As shown, the first end of the first longitudinal beam 14 protrudes from the first transverse beam 11, and the multiple supports 32 also include a third support 323, which is fixed to the first end and fixedly connected to the first wire harness 31.

[0066] In this way, the first wire harness 31 can be fixed to the first end of the first longitudinal beam 14, so as to facilitate bending of the first wire harness 31. Furthermore, after the first wire harness 31 is fixed by the third bracket 323, it can be directly fixed to the top of the first longitudinal beam 14, so that the first wire harness 31 can be supported by the first longitudinal beam 14, thereby reducing the possibility of bending of the first wire harness 31.

[0067] In some embodiments, the plurality of brackets 32 further include a fourth bracket 324, which is fixed to the second end of the first longitudinal beam 14 and is fixedly connected to the first wire harness 31.

[0068] Thus, after the first wire harness 31 leaves the top of the first longitudinal beam 14, it needs to be fixedly connected to the second crossbeam 12. The first wire harness 31 is fixed and guided by the fourth bracket 324 located at the second end of the first longitudinal beam 14. Furthermore, fixing the first wire harness 31 to the aforementioned second end via the fourth bracket 324 also strengthens the fixing effect of the first wire harness 31, preventing it from becoming loose.

[0069] In some embodiments, combined with Figure 4 As shown, the plurality of brackets 32 also includes a fifth bracket 325, which is fixed to the second crossbeam 12 and is fixedly connected to the second connector 312.

[0070] This secures the second connector 312, preventing the electrical connection between the second connector 312 and the vehicle's external charging interface from becoming loose, thus ensuring the stability of the electrical connection between the second connector 312 and the vehicle's external charging interface.

[0071] In some embodiments, such as Figure 3 As shown, the wire harness assembly 3 also includes a pipe clamp 35, which is fixed to the first longitudinal beam 14 and fixedly connected to the first wire harness 31. Figure 4 As shown, the tube clamp 35 has a tube bundle portion 351, which is used to fix the liquid tube.

[0072] Thus, by fixing the pipe clamp 35 to the first longitudinal beam 14, on the one hand, the first wire harness 31 can be fixed to the first longitudinal beam 14 through the pipe clamp 35, thereby strengthening the fixing effect between the first wire harness 31 and the first longitudinal beam 14. This prevents the first wire harness 31 from loosening and dangling from the top side of the first longitudinal beam 14 when subjected to lateral force, which would lead to the loosening of the fixing of the first wire harness 31 to other supports 32. On the other hand, the pipe clamp 35 has a bundle tube portion 351, which can fix the liquid pipe on the vehicle, thereby fixing the liquid pipe to the subframe 1, thus preventing the liquid pipe from loosening and improving the stability of vehicle operation. Therefore, the pipe clamp 35 can improve the stability of the entire vehicle operation in various aspects.

[0073] Optionally, the tube bundle 351 can be, for example, but not limited to, a cable tie. This allows for more convenient and efficient fixation of the liquid tube.

[0074] Alternatively, the fluid line can be, for example, but not limited to, a vehicle water line assembly.

[0075] In some embodiments, such as Figure 3 As shown, the wire harness assembly 3 also includes a first threaded clip 36, which is fixed to the first longitudinal beam 14 and located between the fourth bracket 324 and the pipe clamp 35. The first threaded clip 36 is used to fix the first wire harness 31 to enhance the fixing effect between the first wire harness 31 and the first longitudinal beam 14, thereby improving the stability of the fixing of the first wire harness 31.

[0076] In some embodiments, such as Figure 4 As shown, the wiring harness assembly 3 also includes a second threaded clip 38, which is fixed to the second crossbeam 12 and located between the fourth bracket 324 and the fifth bracket 325. A first threaded clip 36 is used to fix the first wiring harness 31 to one side of the second crossbeam 12, thereby reducing the risk of the first wiring harness 31 drooping after it leaves the first longitudinal beam 14 due to the large distance between the first longitudinal beam 14 and the fifth bracket 325. This further reduces the risk of the first wiring harness 31 becoming loose during vehicle operation, and consequently reduces the possibility of the first wiring harness 31 rubbing against the ground, causing damage and potentially leading to high-voltage safety risks.

[0077] Based on the same concept, this disclosure also provides a vehicle that includes a subframe assembly provided by the first aspect and its possible implementations.

[0078] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this disclosure. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms “comprising” and / or “including” are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0079] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of this disclosure. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0080] In the description of this disclosure, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings and is only for the convenience of describing this disclosure and simplifying the description. Unless otherwise stated, these directional terms 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 on the scope of protection of this disclosure; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0081] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0082] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this disclosure.

[0083] The above description is merely a preferred embodiment of this disclosure and is not intended to limit this disclosure. Various modifications and variations can be made to this disclosure by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the scope of protection of this disclosure.

Claims

1. A subframe assembly comprising: The sub-frame assembly comprises a sub-frame (1), a motor controller (2) and a wire harness assembly (3); The sub-frame (1) comprises a first cross beam (11), a second cross beam (12), a third cross beam (13) and a first longitudinal beam (14), the first cross beam (11) and the second cross beam (12) are fixedly connected with the first end and the second end of the first longitudinal beam (14) respectively, and the third cross beam (13) is fixedly connected with the first longitudinal beam (14) and located between the first cross beam (11) and the second cross beam (12); The motor controller (2) is fixedly connected with the third cross beam (13), and the side of the motor controller (2) is provided with a first power supply interface (21); The wire harness assembly (3) comprises a first wire harness (31) and a plurality of supports (32), the first wire harness (31) is connected with the motor controller (2), the first cross beam (11), the first longitudinal beam (14) and the second cross beam (12) in sequence through the plurality of supports (32), and the two ends of the first wire harness (31) are respectively provided with a first connector (311) and a second connector (312), the first connector (311) is connected with the first power supply interface (21), and the second connector (312) is used for being connected with an external power supply interface of a vehicle; The motor controller (2) is further provided with a second power supply interface (22), and the second power supply interface (22) is located on the side of the first power supply interface (21); The wire harness assembly (3) further comprises a second wire harness (33), the second wire harness (33) is connected with the motor controller (2) and the first cross beam (11) through a plurality of supports (32), and the two ends of the second wire harness (33) are respectively provided with a third connector (331) and a fourth connector (332), the third connector (331) is connected with the second power supply interface (22), and the fourth connector (332) is used for being electrically connected with a vehicle-mounted air conditioner.

2. The subframe assembly of claim 1, wherein, The plurality of supports (32) comprise a first support (321), the first support (321) is fixed to the motor controller (2) and located on the side, away from the second power supply interface (22), of the first power supply interface (21), and the first support (321) is used for fixing the first wire harness (31) and the second wire harness (33) to support the first wire harness (31) and the second wire harness (33).

3. The subframe assembly of claim 1, wherein, The wire harness assembly (3) further comprises a wire harness tube (34), and the wire harness tube (34) is sleeved outside the first wire harness (31) and the second wire harness (33).

4. The subframe assembly of claim 3, wherein, The plurality of supports (32) further comprise a second support (322), and the second support (322) is fixed to the first cross beam (11) and fixedly connected with the wire harness tube (34).

5. The subframe assembly of claim 4, wherein, The second support (322) has a first harness portion (3221) and a second harness portion (3222), the first harness portion (3221) is located on the top of the first cross beam (11) and fixedly connected with the first harness (31), and the second harness portion (3222) is located on the side of the first cross beam (11) and fixedly connected with the second harness (33).

6. The subframe assembly of claim 1, wherein, The first end of the first longitudinal beam (14) protrudes from the first cross beam (11); The plurality of supports (32) further include a third support (323), the third support (323) is fixed to the first end and fixedly connected with the first harness (31).

7. The subframe assembly of claim 1, wherein, The plurality of supports (32) further include a fifth support (325), the fifth support (325) is fixed to the second cross beam (12) and fixedly connected with the second connector (312).

8. The subframe assembly of claim 1, wherein, The harness assembly (3) further includes a pipe clamp (35), the pipe clamp (35) is fixed to the first longitudinal beam (14) and fixedly connected with the first harness (31), the pipe clamp (35) has a harness pipe portion (351), the harness pipe portion (351) is used for fixing a liquid pipe.

9. A vehicle characterized by comprising: The vehicle includes the sub-frame assembly of any one of claims 1-8.

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