A motor assembly suspension structure, a vehicle frame structure, and a vehicle

Abstract

The application provides a motor assembly suspension structure, a vehicle frame structure and a vehicle, comprising a subframe, the subframe having a front mounting point and a rear mounting point, the front mounting point being connected with a vehicle frame through a single frame bushing, and the rear mounting point being connected with the vehicle frame through a double frame bushing; a motor rear suspension support, an active end being connected with a motor assembly, a passive end being connected with a rear cross beam of the subframe, and a buffer bushing being arranged between the active end and the passive end; a motor front suspension member, being connected with a front cross beam of the subframe; and the motor front suspension member and the motor rear suspension support being used for mounting the motor assembly together. The application can improve the NVH performance of the vehicle.

Description

Technical Field

[0001] This application relates to the field of motor mounting technology, and in particular to a motor assembly mounting structure, a vehicle frame structure, and a vehicle. Background Technology

[0002] With the advancement of vehicle technology, new technologies such as independent motor drive and active suspension are gradually being widely applied to vehicles. However, as the weight of vehicles continues to increase, the existing motor assembly mounting structure deforms more, leading to a decline in the overall NVH (Noise, Vibration, Harshness) performance of the vehicle. Utility Model Content

[0003] In view of the above problems, this application is made in order to provide an electric motor assembly mounting structure, a vehicle frame structure and a vehicle that overcome or at least partially solve the above problems.

[0004] To address the aforementioned problems, in the first aspect of this application, a motor assembly mounting structure is disclosed, comprising: The subframe has a front mounting point and a rear mounting point. The front mounting point is connected to the frame via a single frame bushing, and the rear mounting point is connected to the frame via a double frame bushing. The motor rear suspension bracket has an active end connected to the motor assembly and a passive end connected to the rear crossbeam of the subframe. A buffer bushing is provided between the active end and the passive end. The front motor mount is connected to the front crossbeam of the subframe; the front motor mount and the rear motor mount are used together to mount the motor assembly.

[0005] Optionally, the rear motor mounting bracket includes: The motor mounting arm is the active end of the rear suspension bracket of the motor and is connected to the motor assembly; a through hole is provided in the middle area of ​​the motor mounting arm, and the buffer bushing is disposed in the through hole; The suspension mandrel passes through and abuts against the buffer bushing, and the axis of the suspension mandrel intersects the axis of the motor mounting arm; the suspension mandrel is the passive end of the rear suspension bracket of the motor and is connected to the rear crossbeam of the subframe.

[0006] Optionally, the motor mounting structure also includes: The suspension pump assembly is connected to the rear crossbeam of the subframe away from the motor assembly via a damping bushing.

[0007] Optionally, the motor mounting structure also includes: A heat insulation element is disposed on the side of the rear crossbeam of the suspension pump assembly away from the subframe.

[0008] Optionally, the motor assembly is a dual-motor system, with two rear motor mounts disposed on both sides of the rear crossbeam of the subframe; two front motor mounts; and the distance between the two rear motor mounts is greater than the distance between the two front motor mounts.

[0009] Optionally, the motor mounting arm is provided with four mounting points for connection to the motor assembly.

[0010] Optionally, a weight-reducing groove is provided on the side of the motor mounting arm; And / or, the side of the motor mounting arm is provided with reinforcing ribs.

[0011] Optionally, the suspension mandrel is connected to the rear crossbeam of the subframe by bolts.

[0012] In a second aspect, this application discloses a vehicle frame structure, including a chassis and a motor assembly mounting structure as described above, wherein the motor assembly mounting structure is connected to the chassis.

[0013] In a third aspect of this application, a vehicle is disclosed, including the vehicle frame structure described above.

[0014] This application has the following advantages: In this embodiment, the subframe is connected to the vehicle frame via a single frame bushing at its front mounting point, and to a double frame bushing at its rear mounting point. These two mounting points provide a stable connection between the subframe and the vehicle frame. Furthermore, the double frame bushing connection at the rear mounting point reduces stress on the rear of the subframe, thus enhancing its load-bearing capacity. Since the load on the rear of the subframe is greater during motor assembly installation, this enhanced load-bearing capacity leads to more stable rear load distribution, reducing deformation and consequently lowering vibration and noise. The motor assembly is further mounted using both the front and rear motor mounts. The active and passive ends of the rear motor mount are cushioned by buffer bushings, improving its rigidity and modal characteristics, thereby ensuring the overall NVH performance of the vehicle. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a motor assembly mounting structure according to this application; Figure 2 This is a schematic diagram of the connection between the motor assembly and the suspension pump assembly in a motor assembly mounting structure according to this application; Figure 3This is an installation diagram of a suspension pump assembly with a motor assembly mounting structure according to this application; Figure 4 This is a schematic diagram of the rear motor mounting bracket of a motor assembly mounting structure according to this application.

[0016] Explanation of reference numerals in the attached figures: 100 - Subframe, 110 - Frame bushing, 120 - Rear crossbeam, 130 - Front crossbeam, 140 - Front mounting point, 150 - Rear mounting point; 200-Motor rear suspension bracket, 210-Motor mounting arm, 220-Suspension spindle, 230-Buffer bushing, 240-Weight reduction groove, 250-Reinforcing rib; 300 - Motor front mount; 400 - Motor Assembly; 500 - Suspension pump assembly; 510 - Vibration damping bushing; 600 - Thermal insulation. Detailed Implementation

[0017] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0018] Reference Figure 1 The diagram shows a structural schematic of a motor assembly mounting structure according to this application. The motor assembly mounting structure may specifically include: The subframe 100 has a front mounting point 140 and a rear mounting point 150. The front mounting point 140 is connected to the frame via a single frame bushing 110, and the rear mounting point 150 is connected to the frame via a double frame bushing 110. The motor rear suspension bracket 200 has an active end connected to the motor assembly 400 and a passive end connected to the rear crossbeam 120 of the subframe 100. A buffer bushing 230 is provided between the active end and the passive end. The front motor mount 300 is connected to the front crossbeam 130 of the subframe 100; the front motor mount 300 and the rear motor mount 200 are used together to mount the motor assembly 400, subframe 100, frame bushing 110, frame bushing 110, rear motor mount 200, motor assembly 400, subframe 100, rear crossbeam 120, buffer bushing 230, front motor mount 300, subframe 100, front crossbeam 130, front motor mount 300, motor assembly 400.

[0019] In this embodiment, the motor assembly 400 suspension structure may include a subframe 100, a rear motor suspension bracket 200, and a front motor suspension component 300. The subframe 100 connects components such as the motor assembly 400 and the suspension pump assembly to the vehicle frame, thereby achieving corresponding functions. The side of the subframe 100 closest to the front of the vehicle is the front section, and conversely, the side of the subframe 100 closest to the rear of the vehicle is the rear section. The subframe 100 includes a front mounting point 140 and a rear mounting point 150, both serving as mounting points between the subframe 100 and the vehicle frame. Both the front mounting point 140 and the rear mounting point 150 are connected to the vehicle frame, thus integrating the subframe 100 with the vehicle frame. The front mounting point 140 can be connected to the frame via a single frame bushing, meaning the front mounting point 140 is connected to the frame via a single frame bushing 110. Since the subframe 100 bears a greater load at the rear, the rear mounting point 150 can be connected to the frame via a double frame bushing, meaning the rear mounting point 150 is connected to the frame via two frame bushings 110, using the two frame bushings 110 to reduce vibration and noise. The number of front mounting points 140 and rear mounting points 150 can be set according to requirements. In one example, such as... Figure 1 As shown, there are two front mounting points 140 and two rear mounting points 150. The crossbeam at the front of the subframe 100 is the front crossbeam 130, and the crossbeam at the rear of the subframe 100 is the rear crossbeam 120. A front mounting point 140 can be provided at each end of the front crossbeam 130, and a rear mounting point 150 can be provided at each end of the rear crossbeam 120.

[0020] The rear motor mount 200 and the front motor mount 300 are used together to mount the motor assembly 400, which is connected to the subframe 100 via the rear motor mount 200 and the front motor mount 300. The front motor mount 300 is connected to the front crossbeam 130 of the subframe 100. The front motor mount 300 can be fixed to the front crossbeam 130 of the subframe 100 for a more stable connection. The side of the rear motor mount 200 that receives vibration is the active side, and the side that transmits vibration outward is the passive side. The active end of the rear motor mount 200 is connected to the motor assembly 400, and the passive end is connected to the rear crossbeam 120 of the subframe 100. A buffer bushing 230 is provided between the active and passive ends to buffer vibration, thereby reducing noise and vibration transmission and improving the vehicle's NVH performance.

[0021] The buffer bushing 230 and the frame bushing 110 can be of the same type or different types, such as rubber bushings or polyurethane bushings. Rubber bushings use rubber as the core material and are bonded to the metal frame (inner and outer sleeves) through a vulcanization process to form an elastic connector. For example, a pure rubber bushing is directly connected to the subframe 100 and the motor rear suspension bracket 200 via a pressing or vulcanization process. A single-frame bushing has the inner sleeve vulcanized integrally with the rubber and then connected to the subframe 100 and the motor rear suspension bracket 200 via a pressing or bonding process. A double-frame bushing has both the inner and outer sleeves vulcanized integrally with the rubber and then connected to the subframe 100 and the motor rear suspension bracket 200 via a pressing or bonding process. A hydraulic rubber bushing is filled with liquid and forms a resonance system through an inertial channel, providing high damping at a specific frequency and significantly suppressing vibrations from rough road surfaces. A polyurethane bushing is formed using polyurethane.

[0022] In this embodiment, the front mounting point 140 of the subframe 100 is connected to the frame via a single frame bushing 110, and the rear mounting point 150 of the subframe 100 is connected to the frame via a double frame bushing 110. The front and rear mounting points 140 and 150 of the subframe ensure a stable connection between the subframe 100 and the frame. Furthermore, because the rear mounting point 150 of the subframe 100 is connected via the double frame bushing 110, the stress on the rear of the subframe 100 is reduced, thus strengthening the load-bearing capacity of the rear of the subframe 100. Since the load on the rear of the subframe 100 is greater when the motor assembly 400 is installed, the enhanced load-bearing capacity at the rear of the subframe 100 makes the rear load-bearing more stable, reducing deformation and consequently lowering vibration and noise. The motor assembly 400 is then installed using the front motor mount 300 and the rear motor mount 200. The active and passive ends of the rear motor mount 200 can be buffered by the buffer bushing 230, which improves the rigidity and modal strength of the rear motor mount 200, thereby ensuring the NVH performance of the whole vehicle.

[0023] Reference Figure 2 The diagram shows a connection between a motor assembly 400 and a suspension pump assembly 500 according to a motor assembly mounting structure of this application. The motor assembly mounting structure may specifically include: The subframe 100 has a front mounting point 140 and a rear mounting point 150. The front mounting point 140 is connected to the frame via a single frame bushing 110, and the rear mounting point 150 is connected to the frame via a double frame bushing 110. The motor rear suspension bracket 200 has an active end connected to the motor assembly 400 and a passive end connected to the rear crossbeam 120 of the subframe 100. A buffer bushing 230 is provided between the active end and the passive end. The front motor mount 300 is connected to the front crossbeam 130 of the subframe 100; the front motor mount 300 and the rear motor mount 200 are used together to mount the motor assembly 400. The suspension pump assembly 500 is connected to the side of the rear crossbeam 120 of the subframe 100 away from the motor assembly 400 via a damping bushing 510; A heat insulation element 600 is disposed on the side of the suspension pump assembly 500 away from the rear crossbeam 120 of the subframe 100.

[0024] In the embodiments of this application, the motor assembly mounting structure may include a subframe 100, a rear motor mounting bracket 200, a front motor mounting component 300, a suspension pump assembly 500, and a heat insulation component 600.

[0025] The subframe 100 has both a front mounting point 140 and a rear mounting point 150 connected to the frame, thus integrating the subframe 100 with the frame. Specifically, each end of the front crossbeam 130 can have a front mounting point 140, and each end of the rear crossbeam 120 can have a rear mounting point 150. The front mounting point 140 of the front crossbeam 130 is connected to the frame via a single frame bushing 110, while the rear mounting point 150 of the rear crossbeam 120 is connected to the frame via a double frame bushing 110, forming a double bushing structure. This reduces the stress on a single frame bushing 110 and improves NVH performance. The subframe 100 is formed using integrated die-casting technology, thereby enhancing its strength and rigidity.

[0026] The rear motor mount 200 and the front motor mount 300 are used together to mount the motor assembly 400. The active end of the rear motor mount 200 is connected to the motor assembly 400, and the passive end is connected to the rear crossbeam 120 of the subframe 100. The front motor mount 300 is connected to the front crossbeam 130 of the subframe 100, and the motor assembly 400 is connected through the front crossbeam 130 and the rear crossbeam 120 of the subframe 100.

[0027] A buffer bushing 230 is provided between the active end of the motor rear suspension bracket 200 and the passive end of the motor rear suspension bracket 200. The buffer bushing 230 is used for vibration buffering, thereby further reducing noise and vibration.

[0028] In some examples, the motor assembly 400 is a dual-motor system, there are two rear motor mounts 200, and the two rear motor mounts 200 are disposed on both sides of the rear crossbeam 120 of the subframe 100; there are two front motor mounts 300; the distance between the two rear motor mounts 200 is greater than the distance between the two front motor mounts 300.

[0029] When the motor assembly 400 is a dual-motor system, there are two rear motor mounts 200 and two front motor mounts 300. The two rear motor mounts 200 are respectively positioned on both sides of the rear crossbeam 120 of the subframe 100. That is, one rear motor mount 200 is located on the left side of the rear crossbeam 120 of the subframe 100, and the other rear motor mount 200 is located on the right side of the rear crossbeam 120 of the subframe 100. Similarly, the two front motor mounts 300 are respectively positioned on both sides of the front crossbeam 130 of the subframe 100. That is, one front motor mount 300 is located on the left side of the front crossbeam 130 of the subframe 100, and the other front motor mount 300 is located on the right side of the front crossbeam 130 of the subframe 100. The motor assembly 400 can be mounted on the front crossbeam 130 and rear crossbeam 120 of the subframe 100 via four-point mounting. This not only increases the lever arm in the X-direction of the mounting and reduces the stress at each mounting point, thus improving the vehicle's NVH performance, but also ensures that the distance between the two rear motor mounting brackets 200 is greater than the distance between the two front motor mounting components 300. The four mounting points form an isosceles trapezoidal structure, providing high installation stability and limiting the rotation and displacement of the motor assembly 400 under extreme operating conditions. This ensures the connection reliability of the motor assembly 400 and reduces its vibration. The front motor mounting component 300 can be directly press-fitted onto the front crossbeam 130 of the subframe 100, while the rear motor mounting bracket 200 can be bolted onto the rear crossbeam 120 of the subframe 100, facilitating disassembly and maintenance.

[0030] You can refer to Figure 3 The suspension pump assembly 500 can be connected to the side of the rear crossbeam 120 of the subframe 100 away from the motor assembly 400 via the damping bushing 510, such as... Figure 2 As shown, the suspension pump assembly 500 can be connected to the rear end of the rear crossbeam 120 of the subframe 100 via the damping bushing 510.

[0031] The heat insulation component 600 is located on the side of the suspension pump assembly 500 away from the rear crossbeam 120 of the subframe 100, such as... Figure 3 As shown, the heat insulation component 600 can be installed at the rear end of the suspension pump assembly 500. The heat insulation component 600 can be used to isolate external heat, reduce the heat received by the suspension pump assembly 500, and ensure the operational reliability of the suspension pump assembly 500.

[0032] In an optional embodiment of this application, reference may be made to Figure 4 The rear motor mounting bracket 200 includes: The motor mounting arm 210 is the active end of the rear suspension bracket 200 of the motor and is connected to the motor assembly 400; a through hole is provided in the middle area of ​​the motor mounting arm 210, and the buffer bushing 230 is disposed in the through hole; The suspension spindle 220 passes through and abuts against the buffer bushing 230, and the axis of the suspension spindle 220 intersects the axis of the motor mounting arm 210; the suspension spindle 220 is the passive end of the motor rear suspension bracket 200 and is connected to the rear crossbeam 120 of the subframe 100.

[0033] The rear motor mount 200 may include a motor mounting arm 210, a buffer bushing 230, and a mount spindle 220. The motor mounting arm 210 is the active end of the rear motor mount 200; the mount spindle 220 is the passive end of the rear motor mount 200. The motor mounting arm 210 is connected to the motor assembly 400, and the mount spindle 220 is connected to the rear crossbeam 120 of the subframe 100, thereby enabling the motor assembly 400 to be mounted onto the subframe 100. The motor mounting arm 210 can be bolted to the motor assembly 400, and the mount spindle 220 can also be bolted to the rear crossbeam 120 of the subframe 100, facilitating assembly and disassembly.

[0034] A through hole is provided in the middle area of ​​the motor mounting arm 210, such as... Figure 4 As shown, the motor mounting arm 210 has a through hole in the middle, and the buffer bushing 230 is disposed in the through hole. To ensure the installation stability of the buffer bushing 230, the buffer bushing 230 can be installed into the through hole by press fitting. The suspension spindle 220 passes through the buffer bushing 230 and abuts against the buffer bushing 230, and the axis of the suspension spindle 220 intersects the axis of the motor mounting arm 210; that is, the motor mounting arm 210 and the suspension spindle 220 are connected by the buffer bushing 230, and both the motor mounting arm 210 and the suspension spindle 220 are tightly connected to the buffer bushing 230, thereby allowing the buffer bushing 230 to buffer the vibration transmitted between the motor mounting arm 210 and the suspension spindle 220.

[0035] Optionally, the motor mounting arm 210 is provided with four mounting points to connect to the motor assembly 400. The connection of the motor mounting arm 210 to the motor assembly 400 via these four mounting points ensures that the motor mounting arm 210 is subjected to uniform force, guarantees its service life, and reduces vibration in a certain direction, thereby improving NVH performance.

[0036] Optionally, a weight-reducing groove 240 is provided on the side of the motor mounting arm 210. For example... Figure 4 As shown, multiple weight-reducing grooves 240 can be provided on the side of the motor mounting arm 210. By providing weight-reducing grooves 240, the weight of the motor mounting arm 210 can be reduced, thereby achieving a lightweight design.

[0037] Optionally, a reinforcing rib 250 is provided on the side of the motor mounting arm 210. For example... Figure 4As shown, multiple reinforcing ribs 250 can be provided on the side of the motor mounting arm 210 to enhance the strength and rigidity of the motor mounting arm 210.

[0038] In this embodiment, the subframe 100 is connected to the frame via a frame bushing 110 through a front mounting point 140 and a rear mounting point 150. The rear mounting point 150 is connected to the frame via a double frame bushing 110, which reduces the stress on the rear of the subframe 100 and strengthens its load-bearing capacity. Since the load on the rear of the subframe 100 is greater when the motor assembly 400 is installed, the load-bearing capacity of the rear of the subframe 100 is strengthened, making the load-bearing capacity of the rear more stable and reducing the deformation range, thereby reducing vibration and noise. Furthermore, the front motor mount 300 and the rear motor mount bracket 200 jointly install the motor assembly 400. The active and passive sides of the rear motor mount bracket 200 can be buffered by the buffer bushing 230, which improves the bracket stiffness and modal strength of the rear motor mount bracket 200, thereby ensuring the NVH performance of the entire vehicle. The suspension pump assembly 500 is connected to the rear beam of the subframe 100 via a damping bushing 510, forming a primary damping structure. It is then connected to the frame via a frame bushing 110 of the subframe 100, forming a secondary damping structure. This significantly reduces vibration noise transmitted from the suspension pump assembly 500 to the frame, further improving the vehicle's NVH performance. Furthermore, to prevent the exhaust system from affecting the suspension pump assembly 500, a heat insulation component 600 is installed on the side of the suspension pump assembly 500 furthest from the subframe 100 to insulate the exhaust system, thus ensuring the operational function of the suspension pump assembly 500.

[0039] This application also discloses a vehicle frame structure, including a chassis and a motor assembly mounting structure as described above, wherein the motor mounting structure is connected to the chassis.

[0040] By connecting the motor assembly mounting structure to the vehicle frame, components such as the motor assembly and suspension pump assembly are mounted on the motor assembly mounting structure, thereby connecting the motor assembly, suspension pump assembly, and other components to the vehicle, and enabling the motor assembly and suspension pump assembly to perform their corresponding functions.

[0041] The motor assembly mounting structure includes: The subframe has a front mounting point and a rear mounting point. The front mounting point is connected to the frame via a single frame bushing, and the rear mounting point is connected to the frame via a double frame bushing. The motor rear suspension bracket has an active end connected to the motor assembly and a passive end connected to the rear crossbeam of the subframe. A buffer bushing is provided between the active end and the passive end. The front motor mount is connected to the front crossbeam of the subframe; the front motor mount and the rear motor mount are used together to mount the motor assembly.

[0042] Optionally, the rear motor mounting bracket includes: The motor mounting arm is the active end of the rear suspension bracket of the motor and is connected to the motor assembly; a through hole is provided in the middle area of ​​the motor mounting arm, and the buffer bushing is disposed in the through hole; The suspension mandrel passes through and abuts against the buffer bushing, and the axis of the suspension mandrel intersects the axis of the motor mounting arm; the suspension mandrel is the passive end of the rear suspension bracket of the motor and is connected to the rear crossbeam of the subframe.

[0043] Optionally, the motor mounting structure also includes: The suspension pump assembly is connected to the rear crossbeam of the subframe away from the motor assembly via a damping bushing.

[0044] Optionally, the motor mounting structure also includes: A heat insulation element is disposed on the side of the rear crossbeam of the suspension pump assembly away from the subframe.

[0045] Optionally, the motor assembly is a dual-motor system, with two rear motor mounts disposed on both sides of the rear crossbeam of the subframe; two front motor mounts; and the distance between the two rear motor mounts is greater than the distance between the two front motor mounts.

[0046] Optionally, the motor mounting arm is provided with four mounting points for connection to the motor assembly.

[0047] Optionally, a weight-reducing groove is provided on the side of the motor mounting arm; And / or, the side of the motor mounting arm is provided with reinforcing ribs.

[0048] Optionally, the suspension mandrel is connected to the rear crossbeam of the subframe by bolts.

[0049] In this embodiment, the subframe is connected to the vehicle frame via a single frame bushing at its front mounting point, and to a double frame bushing at its rear mounting point. These two mounting points provide a stable connection between the subframe and the vehicle frame. Furthermore, the double frame bushing connection at the rear mounting point reduces stress on the rear of the subframe, thus enhancing its load-bearing capacity. Since the load on the rear of the subframe is greater during motor assembly installation, this enhanced load-bearing capacity leads to more stable rear load distribution, reducing deformation and consequently lowering vibration and noise. The motor assembly is further mounted using both the front and rear motor mounts. The active and passive ends of the rear motor mount are cushioned by buffer bushings, improving its rigidity and modal characteristics, thereby ensuring the overall NVH performance of the vehicle.

[0050] This application also discloses a vehicle, including the vehicle frame structure described above.

[0051] The vehicle frame structure supports the vehicle body, enabling its installation for users to drive and ride in. The vehicle frame structure may include a chassis and a motor mounting structure connected to the chassis.

[0052] The motor assembly mounting structure includes: The subframe has a front mounting point and a rear mounting point. The front mounting point is connected to the frame via a single frame bushing, and the rear mounting point is connected to the frame via a double frame bushing. The motor rear suspension bracket has an active end connected to the motor assembly and a passive end connected to the rear crossbeam of the subframe. A buffer bushing is provided between the active end and the passive end. The front motor mount is connected to the front crossbeam of the subframe; the front motor mount and the rear motor mount are used together to mount the motor assembly.

[0053] Optionally, the rear motor mounting bracket includes: The motor mounting arm is the active end of the rear suspension bracket of the motor and is connected to the motor assembly; a through hole is provided in the middle area of ​​the motor mounting arm, and the buffer bushing is disposed in the through hole; The suspension mandrel passes through and abuts against the buffer bushing, and the axis of the suspension mandrel intersects the axis of the motor mounting arm; the suspension mandrel is the passive end of the rear suspension bracket of the motor and is connected to the rear crossbeam of the subframe.

[0054] Optionally, the motor mounting structure also includes: The suspension pump assembly is connected to the rear crossbeam of the subframe away from the motor assembly via a damping bushing.

[0055] Optionally, the motor mounting structure also includes: A heat insulation element is disposed on the side of the rear crossbeam of the suspension pump assembly away from the subframe.

[0056] Optionally, the motor assembly is a dual-motor system, with two rear motor mounts disposed on both sides of the rear crossbeam of the subframe; two front motor mounts; and the distance between the two rear motor mounts is greater than the distance between the two front motor mounts.

[0057] Optionally, the motor mounting arm is provided with four mounting points for connection to the motor assembly.

[0058] Optionally, a weight-reducing groove is provided on the side of the motor mounting arm; And / or, the side of the motor mounting arm is provided with reinforcing ribs.

[0059] Optionally, the suspension mandrel is connected to the rear crossbeam of the subframe by bolts.

[0060] In this embodiment, the subframe is connected to the vehicle frame via a single frame bushing at its front mounting point, and to a double frame bushing at its rear mounting point. These two mounting points provide a stable connection between the subframe and the vehicle frame. Furthermore, the double frame bushing connection at the rear mounting point reduces stress on the rear of the subframe, thus enhancing its load-bearing capacity. Since the load on the rear of the subframe is greater during motor assembly installation, this enhanced load-bearing capacity leads to more stable rear load distribution, reducing deformation and consequently lowering vibration and noise. The motor assembly is further mounted using both the front and rear motor mounts. The active and passive ends of the rear motor mount are cushioned by buffer bushings, improving its rigidity and modal characteristics, thereby ensuring the overall NVH performance of the vehicle.

[0061] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or terminal device. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or terminal device that includes said element.

[0062] The above provides a detailed description of a motor assembly mounting structure, a vehicle frame structure, and a vehicle provided in this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the methods and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. An electric machine assembly suspension structure, characterized by, include: The subframe has a front mounting point and a rear mounting point. The front mounting point is connected to the frame via a single frame bushing, and the rear mounting point is connected to the frame via a double frame bushing. The motor rear suspension bracket has an active end connected to the motor assembly and a passive end connected to the rear crossbeam of the subframe. A buffer bushing is provided between the active end and the passive end. The front motor mount is connected to the front crossbeam of the subframe; the front motor mount and the rear motor mount are used together to mount the motor assembly.

2. The motor assembly suspension structure of claim 1, wherein The rear motor mounting bracket includes: The motor mounting arm is the active end of the rear suspension bracket of the motor and is connected to the motor assembly; a through hole is provided in the middle area of ​​the motor mounting arm, and the buffer bushing is disposed in the through hole; The suspension mandrel passes through and abuts against the buffer bushing, and the axis of the suspension mandrel intersects the axis of the motor mounting arm; the suspension mandrel is the passive end of the rear suspension bracket of the motor and is connected to the rear crossbeam of the subframe.

3. The motor assembly suspension structure of claim 1, wherein The motor mounting structure also includes: The suspension pump assembly is connected to the rear crossbeam of the subframe away from the motor assembly via a damping bushing.

4. The motor assembly suspension structure of claim 3, wherein The motor mounting structure also includes: A heat insulation element is disposed on the side of the rear crossbeam of the suspension pump assembly away from the subframe.

5. The motor assembly suspension structure of claim 1, wherein The motor assembly is a dual-motor system, with two rear motor mounts positioned on either side of the rear crossbeam of the subframe; there are two front motor mounts; the distance between the two rear motor mounts is greater than the distance between the two front motor mounts.

6. The motor assembly suspension structure of claim 2, wherein The motor mounting arm has four mounting points that connect to the motor assembly.

7. The motor assembly suspension structure of claim 2, wherein The motor mounting arm has a weight-reducing groove on its side. And / or, the side of the motor mounting arm is provided with reinforcing ribs.

8. The motor assembly suspension structure of claim 2, wherein, The suspension mandrel is connected to the rear crossbeam of the subframe by bolts.

9. A vehicle body structure characterized by comprising: It includes a frame and a motor assembly mounting structure as described in any one of claims 1-8, the motor assembly mounting structure being connected to the frame.

10. A vehicle characterized by comprising: Includes the vehicle frame structure as described in claim 9.

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