Rear auxiliary frame for installing rear motor front suspension and vehicle
By setting up a recess on the front crossbeam and using connecting pins and reinforcement structures, the problem of insufficient rigidity and strength of the rear subframe in the prior art is solved, and the safety and stability of vehicle installation is improved, and it is easy to produce and assemble.
Patent Information
- Application Number
- CN202421808742.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-26
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-07-26
AI Technical Summary
In the prior art, the setting of a depression in the middle of the front crossbar to avoid the front suspension of the rear motor will reduce the rigidity and strength of the front end of the rear subframe, affecting the installation safety and stability of the vehicle.
Avoid recesses are provided on the front crossbeam and connected to both sides of the recesses by connecting pins to enhance the rigidity and strength of the front crossbeam, while supporting rods and reinforcement ribs are provided to enhance the overall support of the rear subframe.
Through simple avoidance design and connection structure, the rigidity and overall support of the front beam are improved, ensuring the installation safety and stability of the vehicle, and at the same time it is easy to produce, process and assemble, with good economic value.
Smart Images
Figure CN223132162U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of automobiles, and particularly relates to a rear subframe and a vehicle for installing a rear motor front suspension. Background Art
[0002] The subframe can be regarded as the skeleton of the front and rear axles, and is an integral part of the front and rear axles. The subframe is not a complete frame, but a bracket that supports the front and rear axles and suspension, so that the axles and suspension are connected to the "main frame" through it, and is customarily called the "subframe". The function of the subframe is to block vibration and noise and reduce their direct entry into the car compartment, so it mostly appears in luxury cars and SUVs, and some cars also install subframes for the engine. The car subframe includes the front subframe and the rear subframe, and both the front subframe and the rear subframe play an important role in the vehicle structure.
[0003] At present, the rear steering gear is arranged above the front crossbeam of the rear subframe, and the longitudinal beam must avoid the rear steering gear at the joint with the front crossbeam. The front suspension of the rear motor is fixed above the front crossbeam and below the rear steering gear, and the front suspension of the rear motor needs to maintain a 20mm gap with the rear steering gear and the subframe respectively. In this way, it is necessary to reduce the height of the front suspension of the motor from the ground or set a depression at the corresponding position of the front crossbeam to avoid the front suspension of the rear motor. However, the height of the front suspension from the ground is limited in consideration of the driving safety of the vehicle, but the above depression will reduce the rigidity and strength of the front end of the rear subframe used to install the front suspension of the rear motor. This problem needs to be solved and optimized urgently. Utility Model Content
[0004] In view of the shortcomings of the prior art described above, an object of the present utility model is to provide a rear subframe and a vehicle for installing a rear motor front suspension, so as to solve the problem in the prior art that a depression is provided in the middle part of the front cross beam to avoid the rear motor front suspension, which will reduce the rigidity and strength of the front end of the rear subframe for installing the rear motor front suspension.
[0005] To achieve the above-mentioned object and other related objects, the utility model provides a rear subframe for installing the front suspension of the rear motor, including a rear subframe body, the rear subframe body including a longitudinal beam, a rear cross beam and a front cross beam for installing the rear motor, the front cross beam and the rear cross beam are arranged side by side, the end of the front cross beam and the corresponding end of the rear cross beam are connected by the longitudinal beam, the front cross beam is provided with a connecting pin for installing the front suspension of the rear motor, the front cross beam is provided with an avoidance recess corresponding to the connecting pin for avoiding the front suspension of the rear motor, the connecting pin extends along the extension direction of the front cross beam, and the two ends of the connecting pin are respectively connected to the two sides of the avoidance recess.
[0006] Optionally, connection holes are respectively formed at both ends of the connection pin, fixing holes corresponding to the connection holes are respectively formed on the front cross beam, the connection pin is connected to the front cross beam through a fixing member, and the fixing member is arranged in the connection hole and the corresponding fixing hole.
[0007] Optionally, the fixing member is a bolt, and both the fixing hole and the connection hole are threaded holes.
[0008] Optionally, the rear subframe body further includes a first rear cross beam and a second rear cross beam, and the first rear cross beam and the second rear cross beam are arranged side by side at intervals with the front cross beam.
[0009] Optionally, two support rods are arranged between the first rear cross beam and the second rear cross beam, and the two support rods are arranged at intervals.
[0010] Optionally, a first reinforcing rib is arranged on the support rod, and the first reinforcing rib extends along the extending direction of the support rod.
[0011] Optionally, a longitudinal beam pull rod is arranged on the longitudinal beam, and the longitudinal beam pull rod extends along the extending direction of the longitudinal beam.
[0012] Optionally, the middle part of the longitudinal beam has a front upper control arm mounting point, and a second reinforcing rib is arranged at the front upper control arm mounting point.
[0013] Optionally, the longitudinal beam is tubular, the second reinforcing rib is arranged on the inner wall of the longitudinal beam, the second reinforcing rib is annular, and the rotation axis of the second reinforcing rib is arranged along the extending direction of the longitudinal beam.
[0014] The present utility model further provides a vehicle, including a vehicle body and a rear motor. The vehicle body has the rear subframe for installing the front mount of the rear motor as described above. The rear motor is installed on the rear subframe, and the rear motor has a front mount of the rear motor, and the front mount of the rear motor is sleeved on the connection pin of the rear subframe structure.
[0015] As described above, the rear subframe for installing the front mount of the rear motor and the vehicle of the present utility model have the following beneficial effects:
[0016] By arranging an avoidance recess on the front cross beam to avoid the front mount of the motor, this avoidance method is simple and easy to produce and process. At the same time, by arranging a connection pin, both ends of the connection pin are respectively connected to both ends of the avoidance recess, which can strengthen the overall rigidity and strength of the front cross beam, thereby improving the overall support of the rear subframe. The above structure is simple, easy to produce and assemble, and has good economic value. Description of the Drawings
[0017] Figure 1This is a schematic structural diagram of the rear subframe, the front mount of the rear motor, and the rear steering gear in the embodiment of the present utility model.
[0018] Figure 2 This is a schematic structural diagram of the rear subframe in the embodiment of the present utility model.
[0019] Figure 3 For Figure 2 an enlarged schematic diagram of part A in
[0020] Figure 4 This is a disassembled schematic structural diagram of the rear subframe and the front mount of the rear motor in the embodiment of the present utility model.
[0021] Figure 5 This is a side view of the rear subframe in the embodiment of the present utility model.
[0022] Figure 6 This is a cross-sectional schematic diagram of the front upper control arm mounting point on the rear subframe in the embodiment of the present utility model.
[0023] Figure 7 This is a sectional schematic diagram of the longitudinal beam on the rear subframe in the embodiment of the present utility model.
[0024] Reference numeral description: 1, connecting pin; 2, front mount of the rear motor; 3, front cross beam; 4, longitudinal beam pull rod; 5, first rear cross beam; 6, support rod; 7, second rear cross beam; 8, longitudinal beam; 9, front upper control arm mounting point; 10, fixing hole; 11, connecting hole; 12, avoidance recess; 13, rear steering gear; 14, second reinforcing rib; 15, third reinforcing rib. Detailed implementation manners
[0025] The following specific embodiments illustrate the implementation manners of the present utility model. Those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification.
[0026] Please refer to Figures 1 to 7 . It should be noted that the structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those skilled in the art to understand and read, and are not used to limit the limiting conditions under which the present utility model can be implemented. Therefore, they do not have any technical essence. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects that the present utility model can produce and the purposes that can be achieved, should still fall within the scope that the technical content disclosed by the present utility model can cover. At the same time, the terms such as "upper", "lower", "left", "right", "middle", and "one" cited in this specification are only for the convenience of clear description and are not used to limit the scope under which the present utility model can be implemented. The change or adjustment of their relative relationships, without substantial change in the technical content, should also be regarded as the scope within which the present utility model can be implemented.
[0027] It should be noted that in the following embodiments, the orientation terms "front" and "rear" are descriptions of relative positions. Corresponding to a vehicle, it can be understood that: the front end of the vehicle is the front of the vehicle, and the rear end of the vehicle is the rear of the vehicle. In the following descriptions, if the description of a single part involves the orientation terms "front" and "rear", they all correspond to the orientation of the entire vehicle; the orientation terms "upper" and "lower" are descriptions of relative positions. Corresponding to a vehicle, it can be understood that: the end close to the ground is the lower part, and the end far from the ground is the upper part. In the following descriptions, if the description of a single part involves the orientation terms "upper" and "lower", they all correspond to the orientation of the entire vehicle.
[0028] In order to be able to describe the present invention in detail, a rear subframe and a vehicle for installing the front mount 2 of the rear motor of the present invention will be specifically described next:
[0029] Please refer to Figures 1 to 4 As shown, the present invention provides a rear subframe for installing the front mount 2 of the rear motor, including a rear subframe body. The rear subframe body includes a front cross member 3 for installing a rear steering gear 13. A connecting pin 1 for installing the front mount 2 of the rear motor is provided on the front cross member 3. A relief recess 12 for avoiding the front mount 2 of the rear motor is provided on the front cross member 3 corresponding to the connecting pin 1. The connecting pin 1 extends along the extending direction of the front cross member 3, and both ends of the connecting pin 1 are respectively connected to both sides of the relief recess 12. By providing the relief recess 12 on the front cross member 3 to avoid the front mount 2 of the rear motor, this avoidance method is simple and easy to produce and process. At the same time, by providing the connecting pin 1, both ends of the connecting pin 1 are respectively connected to both ends of the relief recess 12, which can strengthen the overall rigidity and strength of the front cross member 3, thereby improving the overall support of the rear subframe.
[0030] In this embodiment, connection holes 11 are respectively provided at both ends of the connecting pin 1, and fixing holes 10 are respectively provided on the front cross member 3 corresponding to the connection holes 11. The connecting pin 1 is connected to the front cross member 3 through a fixing member, and the fixing member is arranged in the connection holes 11 and the corresponding fixing holes 10. The connecting pin 1 is connected to the front cross member 3 through the fixing holes 10, the connection holes 11 and the fixing member. This connection method is simple and easy to operate. At the same time, the structure at the connection between the front cross member 3 and the connecting pin 1 is simple and easy to produce and manufacture. In this embodiment, the fixing member is a bolt, and both the fixing holes 10 and the connection holes 11 are threaded holes. Bolts have the advantages of being detachable and having high strength. In some other embodiments, the fixing member may include a screw rod and a nut. The type of the fixing member can be adjusted according to actual production requirements.
[0031] Among them, the rear subframe body further includes a first rear cross member 5 and a second rear cross member 7, and the first rear cross member 5 and the second rear cross member 7 are arranged side by side at an interval from the front cross member 3. By providing the first rear cross member 5 and the second rear cross member 7, the rigidity and strength of the rear end of the rear subframe body in the extending direction of the front cross member 3 can be enhanced. Moreover, the first rear cross member 5 and the second rear cross member 7 can meet the requirements of the lightweight design of the rear subframe body while increasing the rigidity and strength of the rear cross member.
[0032] Among them, a support rod 6 is provided between the first rear cross member 5 and the second rear cross member 7, and the two support rods 6 are arranged at intervals in sequence. One end of the support rod 6 is connected to the first rear cross member 5, and the other end of the support rod 6 is connected to the second rear cross member 7. The support rod 6 can increase the rigidity and strength of the rear end of the rear subframe body in the extending direction of the support rod 6.
[0033] Specifically, a first reinforcing rib is provided on the support rod 6, and the first reinforcing rib extends along the extending direction of the support rod 6. By providing the first reinforcing rib, the rigidity strength of the support rod 6 can be enhanced, and the connection effect between the first rear cross member 5 and the second rear cross member 7 can be improved.
[0034] As Figures 1 to 5 shown, among them, the rear subframe body includes a longitudinal beam 8 and a rear cross member, the front cross member 3 and the rear cross member are arranged side by side, and the corresponding ends of the front cross member 3 and the rear cross member are connected by the longitudinal beam 8. A longitudinal beam lower pull rod 4 is provided on the longitudinal beam 8, and the longitudinal beam lower pull rod 4 extends along the extending direction of the longitudinal beam. In this embodiment, since the front cross member 3 needs to accommodate the front suspension of the rear motor 2, the middle part of the longitudinal beam 8 has a bend to enable the front cross member 3 to avoid the front suspension of the rear motor 2. Therefore, by providing the longitudinal beam lower pull rod 4 on the longitudinal beam 8, the rigidity and strength of the longitudinal beam 8 with a bend can be improved, and the requirements of the lightweight design of the rear subframe body can be met. In this embodiment, the rear cross member includes a first rear cross member 5 and a second rear cross member 7.
[0035] Among them, the middle part of the longitudinal beam 8 has a front upper control arm mounting point 9, and a second reinforcing rib 14 is provided at the front upper control arm mounting point 9. The front upper control arm mounting point 9 is used for mounting the front upper control arm. By providing the second reinforcing rib 14, the rigidity and strength of the longitudinal beam 8 corresponding to the front upper control arm mounting point 9 can be enhanced, the stability when the rear subframe body is connected to the front upper control arm can be ensured, and the service life of the rear subframe body can be prolonged.
[0036] As Figure 6 and Figure 7As shown, in this embodiment, the longitudinal beam 8 is tubular, and the second reinforcing rib 14 is arranged on the inner wall of the longitudinal beam 8. The second reinforcing rib 14 is annular, and the axis of rotation of the second reinforcing rib 14 is arranged along the extending direction of the longitudinal beam 8. In this embodiment, the second reinforcing rib 14 is arranged at the front upper control arm mounting point 9 of the longitudinal beam. By arranging the second reinforcing rib 14, the rigidity and strength of the front upper control arm mounting point 9 along the extending direction of the front cross beam 3 can be enhanced. At the same time, since the second reinforcing rib 14 is arranged on the inner wall of the longitudinal beam 8, the flatness and aesthetics of the outer wall of the longitudinal beam 8 can be increased. In this embodiment, a plurality of third reinforcing ribs 15 extending along the extending direction of the longitudinal beam 8 are arranged on the inner wall of the longitudinal beam 8 to enhance the rigidity and strength of the longitudinal beam 8.
[0037] The utility model provides a vehicle, including a vehicle body and a rear motor. The vehicle body has a rear subframe for mounting the front mount 2 of the rear motor as described above. The rear motor is mounted on the rear subframe, and the rear motor has a front mount 2 of the rear motor, and the front mount 2 of the rear motor is sleeved on the connecting pin 1 of the rear subframe structure.
[0038] To sum up, by arranging the avoidance recess 12 on the front cross beam 3 to avoid the front mount of the motor, this avoidance method is simple and easy to produce and process. At the same time, by arranging the connecting pin 1, with both ends of the connecting pin 1 respectively connected to both ends of the avoidance recess 12, the overall rigidity and strength of the front cross beam 3 can be enhanced, thereby improving the overall support of the rear subframe. The above structure is simple, easy to produce and assemble, and has good economic value.
[0039] The above embodiments are only used to illustrate the principle and its effects of the utility model by way of example, rather than to limit the utility model. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the utility model. Therefore, all equivalent modifications or changes completed by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the utility model should still be covered by the claims of the utility model.
Claims
1. A rear subframe for installing a front engine mount at the rear, characterized in that, It includes a rear subframe body, the rear subframe body includes longitudinal beams, a rear crossbeam and a front crossbeam for installing a rear motor, the front crossbeam and the rear crossbeam are arranged in parallel, the end of the front crossbeam and the corresponding end of the rear crossbeam are connected by the longitudinal beam, a connecting pin for installing the front mount of the rear motor is provided on the front crossbeam, an avoidance recess for avoiding the front mount of the rear motor is provided on the front crossbeam corresponding to the connecting pin, the connecting pin extends along the extension direction of the front crossbeam, and both ends of the connecting pin are respectively connected to both sides of the avoidance recess.
2. The rear subframe for installing the front motor mount at the rear, according to claim 1, wherein: Connecting holes are respectively opened at both ends of the connecting pin, fixing holes are respectively opened on the front crossbeam corresponding to the connecting holes, the connecting pin is connected to the front crossbeam through a fixing member, and the fixing member is arranged in the connecting hole and the corresponding fixing hole.
3. The rear subframe for installing the front motor mount at the rear, as claimed in claim 2, wherein: The fixing member is a bolt, and both the fixing hole and the connecting hole are threaded holes.
4. The rear subframe for installing the front mount of the rear motor according to claim 1, characterized in that: The rear subframe body further includes a first rear crossbeam and a second rear crossbeam, and the first rear crossbeam and the second rear crossbeam are both arranged in parallel at a distance from the front crossbeam.
5. The rear subframe for installing the front motor mount according to claim 4, characterized in that: Two support rods are arranged between the first rear crossbeam and the second rear crossbeam, and the two support rods are arranged at a distance.
6. The rear subframe for installing the front motor mount according to claim 5, characterized in that: A first reinforcing rib is provided on the support rod, and the first reinforcing rib extends along the extension direction of the support rod.
7. The rear subframe for installing the front motor mount at the rear, as claimed in claim 1, wherein: A longitudinal beam lower pull rod is provided on the longitudinal beam, and the longitudinal beam lower pull rod extends along the extension direction of the longitudinal beam.
8. The rear subframe for installing the front motor mount at the rear, according to claim 7, wherein: The middle part of the longitudinal beam has a front upper control arm mounting point, and a second reinforcing rib is provided at the front upper control arm mounting point.
9. The rear subframe for installing the front motor mount at the rear, as claimed in claim 8, wherein: The longitudinal beam is tubular, the second reinforcing rib is provided on the inner wall of the longitudinal beam, the second reinforcing rib is annular, and the axis of rotation of the second reinforcing rib is arranged along the extension direction of the longitudinal beam.
10. A vehicle, characterized in that, It includes a vehicle body and a rear motor, the vehicle body has a rear subframe for installing the front mount of the rear motor as described in any one of claims 1-9, the rear motor is installed on the rear subframe, and the rear motor has a front mount of the rear motor, and the front mount of the rear motor is sleeved on the connecting pin of the rear subframe structure.